/* ================================================================
   Vaultria — Component Styles v3
   Professional language workstation · investor-ready
   ================================================================ */

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--sp-sm); padding: 10px var(--sp-lg);
  border-radius: var(--r-md); font-size: 0.875rem; font-weight: 500;
  letter-spacing: 0.01em; cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast),
    border-color var(--t-fast), box-shadow var(--t-fast), transform 120ms ease;
  white-space: nowrap; user-select: none;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--accent-primary); color: #050310;
  border: 1px solid transparent; font-weight: 600;
  letter-spacing: 0.02em;
}
.btn-primary:hover {
  filter: brightness(1.12);
  box-shadow: 0 0 24px var(--accent-glow), 0 4px 12px rgba(0,0,0,0.3);
}
.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--border-normal);
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-hover); border-color: var(--border-strong); }
.btn-danger { background: transparent; color: var(--error); border: 1px solid rgba(248,113,113,0.3); }
.btn-danger:hover { background: rgba(248,113,113,0.08); }
.btn-sm { padding: 6px var(--sp-md); font-size: 0.8rem; }
.btn-lg { padding: 14px var(--sp-xl); font-size: 1rem; letter-spacing: 0.04em; }
.btn:disabled { opacity: 0.36; cursor: not-allowed; transform: none; filter: none; }
.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: var(--r-md); }
.btn-icon.btn-sm { width: 28px; height: 28px; border-radius: var(--r-sm); }
.btn-google {
  background: rgba(255,255,255,0.07); border: 1px solid var(--border-normal);
  color: var(--text-primary); gap: var(--sp-sm);
}
.btn-google:hover { background: rgba(255,255,255,0.11); border-color: var(--border-strong); }

/* ── Inputs ──────────────────────────────────────────────────────── */
.input-group { display: flex; flex-direction: column; gap: var(--sp-xs); }
.input-label { font-size: 0.8rem; font-weight: 500; color: var(--text-secondary); letter-spacing: 0.04em; }
.input {
  width: 100%; padding: 10px var(--sp-md);
  background: var(--bg-glass); border: 1px solid var(--border-normal);
  border-radius: var(--r-md); color: var(--text-primary); font-size: 0.9rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}
.input::placeholder { color: var(--text-muted); }
.input:focus { border-color: var(--accent-primary); background: var(--bg-hover); box-shadow: 0 0 0 3px var(--accent-dim); }
.input.input-error { border-color: var(--error); }
.input.input-error:focus { box-shadow: 0 0 0 3px var(--error-glow); }
.input-hint { font-size: 0.78rem; color: var(--text-muted); }
.input-error-msg { font-size: 0.78rem; color: var(--error); }

/* ── Cards ───────────────────────────────────────────────────────── */
.card {
  background: var(--bg-glass); border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg); padding: var(--sp-lg);
  transition: border-color var(--t-fast), background var(--t-fast);
}
.card:hover { border-color: var(--border-normal); }
.card-elevated {
  background: var(--bg-surface); border: 1px solid var(--border-normal);
  border-radius: var(--r-lg); padding: var(--sp-lg);
  box-shadow: 0 4px 32px rgba(0,0,0,0.28);
}
.card-accent {
  background: var(--accent-dim); border: 1px solid var(--accent-glow);
  border-radius: var(--r-lg); padding: var(--sp-lg);
}

/* ── Language selection cards ────────────────────────────────────── */
.lang-card {
  position: relative; border-radius: var(--r-lg); padding: var(--sp-xl) var(--sp-lg);
  cursor: pointer; overflow: hidden; border: 1px solid var(--border-subtle);
  transition: transform var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
  text-align: center; display: flex; flex-direction: column;
  align-items: center; gap: var(--sp-md); min-height: 210px; justify-content: center;
}
.lang-card:hover { transform: translateY(-6px); border-color: var(--accent-primary); box-shadow: 0 20px 60px var(--accent-glow); }
.lang-card-title { font-family: var(--font-display); font-size: 1.8rem; font-weight: 600; color: var(--text-primary); }
.lang-card-native { font-size: 1.15rem; color: var(--text-secondary); letter-spacing: 0.02em; }
.lang-card-progress { font-size: 0.78rem; color: var(--text-muted); font-family: var(--font-mono); }
.lang-card-stats {
  display: flex; gap: var(--sp-md); justify-content: center;
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted);
  margin-top: 2px;
}
.lang-card[data-lang-select="japanese"] {
  background: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(200,80,120,0.22) 0%, transparent 65%),
    linear-gradient(162deg, #10071a 0%, #1a0d22 100%);
}
.lang-card[data-lang-select="korean"] {
  background: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(25,90,210,0.22) 0%, transparent 65%),
    linear-gradient(162deg, #050818 0%, #080c22 100%);
}
.lang-card[data-lang-select="spanish"] {
  background: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(210,100,20,0.22) 0%, transparent 65%),
    linear-gradient(162deg, #140a03 0%, #1e1006 100%);
}

/* ── Progress bar ────────────────────────────────────────────────── */
.progress-bar-container { width: 100%; height: 3px; background: var(--border-subtle); border-radius: var(--r-full); overflow: hidden; }
.progress-bar-fill { height: 100%; border-radius: var(--r-full); background: var(--accent-primary); transition: width 0.8s cubic-bezier(0.22,1,0.36,1); box-shadow: 0 0 8px var(--accent-glow); }
.progress-bar-container--thick { height: 6px; }

/* ── Stars display ───────────────────────────────────────────────── */
.stars { display: flex; gap: 2px; align-items: center; }
.star { width: 14px; height: 14px; color: var(--text-muted); }
.star.filled { color: var(--accent-primary); }

/* ── XP / Level badges ───────────────────────────────────────────── */
.xp-badge {
  display: inline-flex; align-items: center; gap: var(--sp-xs);
  padding: 4px var(--sp-sm); border-radius: var(--r-full);
  background: var(--accent-dim); border: 1px solid var(--accent-glow);
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--accent-primary); letter-spacing: 0.02em;
}

/* ── Badges ──────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px var(--sp-sm); border-radius: var(--r-full);
  font-size: 0.68rem; font-weight: 600; letter-spacing: 0.04em;
}
.badge-dev     { background: rgba(139,124,255,0.14); color: #a08fff; border: 1px solid rgba(139,124,255,0.28); }
.badge-cloud   { background: rgba(77,184,255,0.12);  color: #4db8ff; border: 1px solid rgba(77,184,255,0.24); }
.badge-local   { background: rgba(251,191,36,0.12);  color: #fbbf24; border: 1px solid rgba(251,191,36,0.24); }
.badge-mentor  { background: rgba(232,164,74,0.14);  color: #e8a44a; border: 1px solid rgba(232,164,74,0.28); }
.badge-new     { background: rgba(74,222,128,0.12);  color: #4ade80; border: 1px solid rgba(74,222,128,0.24); }

/* ── Auth form ───────────────────────────────────────────────────── */
.auth-form { display: flex; flex-direction: column; gap: var(--sp-md); }
.auth-divider {
  display: flex; align-items: center; gap: var(--sp-md);
  color: var(--text-muted); font-size: 0.8rem;
}
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border-subtle); }

/* ── Avatar ──────────────────────────────────────────────────────── */
.avatar { border-radius: 50%; object-fit: cover; background: var(--bg-hover); border: 2px solid var(--border-normal); flex-shrink: 0; }
.avatar-sm { width: 32px; height: 32px; }
.avatar-md { width: 48px; height: 48px; }
.avatar-lg { width: 72px; height: 72px; }

/* ================================================================
   SKILL / KNOWLEDGE MAP — Network style
   ================================================================ */

.skill-map-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-bottom: var(--sp-2xl);
}

/* ── Stage container ─────────────────────────────────────────────── */
.skill-stage {
  display: flex;
  flex-direction: column;
  gap: var(--sp-lg);
  padding: var(--sp-xl) 0;
  position: relative;
}

.skill-stage + .skill-stage {
  border-top: 1px solid var(--border-subtle);
}

.skill-stage-header {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
}

.skill-stage-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
  font-family: var(--font-mono);
}

.skill-stage-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-subtle), transparent);
}

.skill-stage-status {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.skill-stage-status--active {
  color: var(--accent-primary);
}

/* ── Knowledge network canvas ────────────────────────────────────── */
.skill-network {
  position: relative;
  width: 100%;
  min-height: 160px;
}

/* SVG connector lines drawn programmatically */
.skill-network-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: visible;
}

.skill-connector-line {
  stroke: var(--border-normal);
  stroke-width: 1.5;
  fill: none;
  stroke-dasharray: 4 4;
  opacity: 0.5;
}

.skill-connector-line--completed {
  stroke: var(--accent-primary);
  stroke-dasharray: none;
  opacity: 0.4;
}

.skill-connector-line--active {
  stroke: var(--accent-primary);
  stroke-dasharray: none;
  opacity: 0.6;
}

/* ── Node grid (flex wrap) ───────────────────────────────────────── */
.skill-node-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-lg) var(--sp-xl);
  padding: var(--sp-sm) var(--sp-md);
  position: relative;
  z-index: 1;
  align-items: flex-start;
}

/* ── Individual skill node ───────────────────────────────────────── */
.skill-node {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: transform var(--t-base), filter var(--t-base);
  flex-shrink: 0;
}

.skill-node:hover:not(.skill-node--locked) { transform: translateY(-4px); }
.skill-node--locked { opacity: 0.28; cursor: not-allowed; filter: grayscale(0.7); }
.skill-node--locked:hover { transform: none; }

.skill-node-bubble {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border-normal);
  background: var(--bg-glass);
  transition: border-color var(--t-base), box-shadow var(--t-base), background var(--t-base);
  font-size: 1.3rem;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  position: relative;
}

.skill-node--active .skill-node-bubble {
  border-color: var(--accent-primary);
  border-width: 2px;
  background: var(--accent-dim);
  box-shadow: 0 0 0 5px var(--accent-dim), 0 0 28px var(--accent-glow);
  animation: nodePulse 2.8s ease-in-out infinite;
}

.skill-node--completed .skill-node-bubble {
  border-color: var(--accent-primary);
  border-width: 2px;
  background: var(--accent-dim);
  box-shadow: 0 0 12px var(--accent-glow);
}

.skill-node--checkpoint {
  /* Extra visual weight for checkpoint nodes */
}

.skill-node--checkpoint .skill-node-bubble {
  border-style: solid;
  border-color: var(--accent-primary);
  background: linear-gradient(135deg, var(--accent-dim), rgba(0,0,0,0));
  border-radius: var(--r-md);
  width: 64px;
  height: 64px;
  font-size: 1.1rem;
}

@keyframes nodePulse {
  0%, 100% { box-shadow: 0 0 0 5px var(--accent-dim), 0 0 28px var(--accent-glow); }
  50%       { box-shadow: 0 0 0 9px var(--accent-dim), 0 0 42px var(--accent-glow); }
}

/* Completion check overlay */
.skill-node--completed .skill-node-bubble::after {
  content: '';
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-primary);
  border: 2px solid var(--bg-base);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23050310' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 11px;
  background-repeat: no-repeat;
  background-position: center;
}

.skill-node-stars {
  display: flex;
  gap: 1px;
  justify-content: center;
}

.skill-node-stars .star { width: 9px; height: 9px; }

.skill-node-title {
  font-size: 0.64rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 70px;
  line-height: 1.3;
  transition: color var(--t-fast);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.skill-node--active .skill-node-title,
.skill-node--completed .skill-node-title {
  color: var(--text-secondary);
}

/* ── Node detail drawer (below active node) ──────────────────────── */
.node-detail-drawer {
  background: var(--bg-surface);
  border: 1px solid var(--border-normal);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
  margin-top: var(--sp-md);
  animation: slideDown 0.25s cubic-bezier(0.22,1,0.36,1);
  border-left: 3px solid var(--accent-primary);
}

@keyframes slideDown {
  from { opacity:0; transform: translateY(-8px); }
  to   { opacity:1; transform: translateY(0); }
}

.node-detail-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: var(--sp-xs);
}

.node-detail-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--sp-md);
}

.node-detail-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: var(--sp-md);
}

/* ================================================================
   WORKSTATION DASHBOARD — center canvas modules
   ================================================================ */

.workstation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-md);
  margin-bottom: var(--sp-md);
}

.workstation-grid--wide { grid-template-columns: 1fr; }

@media (max-width: 900px) { .workstation-grid { grid-template-columns: 1fr; } }

/* ── Stats row ───────────────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-sm);
  margin-bottom: var(--sp-md);
}

@media (max-width: 700px) { .stats-row { grid-template-columns: repeat(2, 1fr); } }

.stat-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  padding: var(--sp-md) var(--sp-md);
  text-align: center;
  transition: border-color var(--t-fast);
}

.stat-card:hover { border-color: var(--border-normal); }

.stat-card-value {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 300;
  color: var(--accent-primary);
  line-height: 1.1;
  display: block;
  margin-bottom: 4px;
}

.stat-card-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ── Daily Phrase module ─────────────────────────────────────────── */
.daily-phrase-module {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-lg) var(--sp-xl);
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
  overflow: hidden;
  position: relative;
  margin-bottom: var(--sp-md);
  transition: border-color var(--t-fast);
}

.daily-phrase-module:hover { border-color: var(--border-normal); }

.daily-phrase-module::before {
  content: 'PHRASE OF THE DAY';
  position: absolute;
  top: var(--sp-md);
  right: var(--sp-lg);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Decorative accent line */
.daily-phrase-module::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--accent-primary), transparent);
  border-radius: var(--r-full);
}

.daily-phrase-text {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  line-height: 1.3;
  flex: 1;
}

.daily-phrase-romanji {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-top: 4px;
}

.daily-phrase-translation {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: var(--sp-xs);
}

.daily-phrase-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: var(--sp-xs);
  font-style: italic;
  line-height: 1.5;
}

.daily-phrase-meta {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  align-items: flex-end;
  flex-shrink: 0;
}

/* ── Module cards ────────────────────────────────────────────────── */
.module-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  transition: border-color var(--t-fast);
}

.module-card:hover { border-color: var(--border-normal); }

.module-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-xs);
}

.module-card-title {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  font-family: var(--font-mono);
}

.module-card-action {
  font-size: 0.75rem;
  color: var(--accent-primary);
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--t-fast);
  font-weight: 500;
}
.module-card-action:hover { opacity: 1; }

/* ── Review cards (flashcard mini) ──────────────────────────────── */
.review-mini-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px var(--sp-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast), transform 120ms ease;
  gap: var(--sp-md);
}
.review-mini-card:hover {
  border-color: var(--border-normal);
  background: var(--bg-hover);
  transform: translateX(3px);
}
.review-mini-word { font-family: var(--font-display); font-size: 1.05rem; color: var(--text-primary); }
.review-mini-translation { font-size: 0.8rem; color: var(--text-secondary); }
.review-mini-weight {
  width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent-primary);
}
.review-mini-weight--high { background: var(--error); }
.review-mini-weight--low  { background: var(--success); }

/* ── Cultural insight card ───────────────────────────────────────── */
.insight-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--r-lg);
  padding: var(--sp-lg) var(--sp-lg) var(--sp-lg) calc(var(--sp-lg) + 4px);
  position: relative;
  overflow: hidden;
  transition: border-color var(--t-fast);
}

.insight-card:hover { border-color: var(--border-normal); }

.insight-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 60px; height: 60px;
  background: radial-gradient(circle at 80% 20%, var(--accent-dim), transparent 70%);
  pointer-events: none;
}

.insight-card-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin-bottom: var(--sp-sm);
  font-family: var(--font-mono);
}

.insight-card-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── Activity feed ───────────────────────────────────────────────── */
.activity-feed {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.activity-item {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: 7px var(--sp-sm);
  border-radius: var(--r-md);
  transition: background var(--t-fast);
  animation: feedItemIn 0.3s ease both;
}

.activity-item:hover { background: var(--bg-hover); }

@keyframes feedItemIn {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}

.activity-dot {
  width: 5px; height: 5px; border-radius: 50%;
  flex-shrink: 0; background: var(--accent-primary);
}
.activity-dot--xp       { background: var(--accent-primary); }
.activity-dot--unlock   { background: var(--success); }
.activity-dot--complete { background: #a78bfa; }
.activity-dot--momentum { background: #4ade80; }

.activity-text { font-size: 0.8rem; color: var(--text-secondary); flex: 1; line-height: 1.4; }
.activity-text strong { color: var(--text-primary); font-weight: 500; }
.activity-time { font-size: 0.7rem; color: var(--text-muted); font-family: var(--font-mono); white-space: nowrap; }

/* ── Pronunciation module ────────────────────────────────────────── */
.pronunciation-card {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
  padding: var(--sp-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.pronunciation-card:hover { border-color: var(--border-normal); background: var(--bg-hover); }

.pronunciation-wave {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 26px;
  flex-shrink: 0;
}

.pronunciation-wave-bar {
  width: 3px;
  background: var(--accent-primary);
  border-radius: var(--r-full);
  opacity: 0.55;
  animation: waveIdle 1.6s ease-in-out infinite;
}
.pronunciation-wave-bar:nth-child(2) { animation-delay: 0.12s; }
.pronunciation-wave-bar:nth-child(3) { animation-delay: 0.22s; height: 18px; }
.pronunciation-wave-bar:nth-child(4) { animation-delay: 0.18s; }
.pronunciation-wave-bar:nth-child(5) { animation-delay: 0.28s; height: 20px; }
.pronunciation-wave-bar:nth-child(6) { animation-delay: 0.08s; height: 15px; }

@keyframes waveIdle {
  0%, 100% { transform: scaleY(0.45); opacity: 0.35; }
  50%       { transform: scaleY(1.2); opacity: 0.75; }
}

/* ── Challenge cards ─────────────────────────────────────────────── */
.challenge-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  cursor: pointer;
  transition: border-color var(--t-fast), transform var(--t-base), box-shadow var(--t-base);
}
.challenge-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.challenge-type-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: var(--r-full);
  font-size: 0.66rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; font-family: var(--font-mono);
}
.challenge-type--speed       { background: rgba(251,191,36,0.12);  color: #fbbf24; border: 1px solid rgba(251,191,36,0.2); }
.challenge-type--dictation   { background: rgba(167,139,250,0.12); color: #a78bfa; border: 1px solid rgba(167,139,250,0.2); }
.challenge-type--translation { background: rgba(77,184,255,0.12);  color: #4db8ff; border: 1px solid rgba(77,184,255,0.2); }
.challenge-type--momentum    { background: rgba(74,222,128,0.12);  color: #4ade80; border: 1px solid rgba(74,222,128,0.2); }

.challenge-title { font-size: 0.95rem; font-weight: 500; color: var(--text-primary); letter-spacing: 0.01em; }
.challenge-desc  { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.55; }
.challenge-meta {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.75rem; color: var(--text-muted); font-family: var(--font-mono);
}
.challenge-reward { color: var(--accent-primary); font-weight: 500; }
.challenge-progress-bar {
  height: 3px; background: var(--border-subtle);
  border-radius: var(--r-full); overflow: hidden; margin-top: 4px;
}
.challenge-progress-fill {
  height: 100%; background: var(--accent-primary);
  border-radius: var(--r-full);
}

/* ── Phrase library entries ──────────────────────────────────────── */
.phrase-entry {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  transition: border-color var(--t-fast), transform var(--t-base);
}
.phrase-entry:hover { border-color: var(--border-normal); transform: translateX(3px); }

.phrase-main {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: var(--sp-md);
}

.phrase-romanji { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); letter-spacing: 0.04em; }
.phrase-translation { font-size: 0.88rem; color: var(--text-secondary); }
.phrase-grammar-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  padding: var(--sp-sm) var(--sp-md);
  background: var(--bg-glass);
  border-left: 2px solid var(--accent-dim);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  line-height: 1.55;
}
.phrase-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.phrase-tag {
  padding: 2px 8px; border-radius: var(--r-full);
  font-size: 0.65rem; font-family: var(--font-mono);
  background: var(--bg-active); color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  cursor: pointer; transition: all var(--t-fast);
}
.phrase-tag:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
.phrase-tag.active { background: var(--accent-dim); border-color: var(--accent-primary); color: var(--accent-primary); }

/* ── Leaderboard ─────────────────────────────────────────────────── */
.leaderboard-list { display: flex; flex-direction: column; gap: var(--sp-xs); }

.leaderboard-row {
  display: flex; align-items: center; gap: var(--sp-md);
  padding: 12px var(--sp-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  transition: border-color var(--t-fast), background var(--t-fast), transform 120ms ease;
  animation: feedItemIn 0.3s ease both;
}
.leaderboard-row:hover { border-color: var(--border-normal); background: var(--bg-hover); transform: translateX(3px); }
.leaderboard-row--self {
  border-color: var(--accent-glow);
  background: var(--accent-dim);
}

.leaderboard-rank {
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted);
  width: 26px; text-align: center; flex-shrink: 0;
}
.leaderboard-rank--gold   { color: #fbbf24; font-weight: 700; font-size: 1.1rem; }
.leaderboard-rank--silver { color: #94a3b8; font-weight: 700; font-size: 1.1rem; }
.leaderboard-rank--bronze { color: #d97706; font-weight: 700; font-size: 1.1rem; }

.leaderboard-avatar-initial {
  width: 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem; font-weight: 600; flex-shrink: 0;
  background: var(--bg-active); color: var(--accent-primary);
  border: 1px solid var(--border-normal);
}

.leaderboard-name { font-size: 0.9rem; color: var(--text-primary); font-weight: 500; }
.leaderboard-lang { font-size: 0.7rem; color: var(--text-muted); font-family: var(--font-mono); }
.leaderboard-xp   { font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent-primary); font-weight: 500; margin-left: auto; }
.leaderboard-momentum { font-family: var(--font-mono); font-size: 0.72rem; color: #4ade80; margin-left: var(--sp-sm); }

/* ── Plaza / Social ──────────────────────────────────────────────── */
.plaza-post {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  transition: border-color var(--t-fast);
  animation: feedItemIn 0.35s ease both;
}
.plaza-post:hover { border-color: var(--border-normal); }

.plaza-post-header { display: flex; align-items: center; gap: var(--sp-sm); flex-wrap: wrap; }
.plaza-post-author { font-size: 0.875rem; font-weight: 500; color: var(--text-primary); }
.plaza-post-time   { font-size: 0.7rem; color: var(--text-muted); font-family: var(--font-mono); margin-left: auto; }
.plaza-post-lang-tag {
  padding: 2px 8px; border-radius: var(--r-full);
  font-size: 0.66rem; font-family: var(--font-mono);
  background: var(--accent-dim); color: var(--accent-primary);
  border: 1px solid var(--accent-glow);
}
.plaza-post-body { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.65; }
.plaza-post-question {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--text-primary);
  padding: var(--sp-sm) var(--sp-md);
  background: var(--bg-glass);
  border-left: 3px solid var(--accent-primary);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}
.plaza-post-actions { display: flex; gap: var(--sp-sm); }

/* ── Vault ───────────────────────────────────────────────────────── */
.vault-lock-overlay {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: var(--sp-xl);
  padding: var(--sp-2xl); text-align: center;
  min-height: 420px;
}

.vault-lock-icon {
  font-size: 3rem; opacity: 0.4;
  width: 80px; height: 80px;
  border: 1px solid var(--border-normal);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-glass);
}

.vault-lock-title {
  font-family: var(--font-display); font-size: 2.2rem; font-weight: 300;
  color: var(--text-primary); letter-spacing: 0.06em;
}

.vault-lock-progress {
  width: 100%; max-width: 320px;
}

.vault-preview-item {
  display: flex; align-items: center; gap: var(--sp-md);
  padding: var(--sp-sm) var(--sp-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  margin-bottom: 6px;
  opacity: 0.45;
}

.vault-preview-icon { font-size: 1.1rem; flex-shrink: 0; }
.vault-preview-name { font-size: 0.85rem; color: var(--text-secondary); flex: 1; }
.vault-preview-lock { font-size: 0.75rem; color: var(--text-muted); }

/* ── Settings rows ───────────────────────────────────────────────── */
.settings-section { margin-bottom: var(--sp-xl); }
.settings-section-title {
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: var(--sp-md); padding-bottom: var(--sp-sm);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
}

.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--sp-md) var(--sp-lg);
  border-bottom: 1px solid var(--border-subtle);
  gap: var(--sp-lg);
}
.settings-row:last-child { border-bottom: none; }
.settings-row-label { font-size: 0.88rem; color: var(--text-primary); font-weight: 500; }
.settings-row-desc  { font-size: 0.76rem; color: var(--text-muted); margin-top: 2px; line-height: 1.4; }

/* Toggle switch */
.toggle {
  position: relative; width: 40px; height: 22px;
  background: var(--border-normal); border-radius: var(--r-full);
  cursor: pointer; transition: background var(--t-fast); flex-shrink: 0;
}
.toggle.on { background: var(--accent-primary); }
.toggle::after {
  content: ''; position: absolute; width: 16px; height: 16px;
  border-radius: 50%; background: #fff; top: 3px; left: 3px;
  transition: left var(--t-fast); box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}
.toggle.on::after { left: 21px; }

/* Select pill group */
.select-pills { display: flex; gap: 4px; flex-wrap: wrap; }
.select-pill {
  padding: 5px 14px; border-radius: var(--r-full);
  font-size: 0.8rem; cursor: pointer;
  background: var(--bg-glass); border: 1px solid var(--border-normal);
  color: var(--text-secondary); transition: all var(--t-fast);
  font-weight: 500;
}
.select-pill:hover { border-color: var(--accent-primary); color: var(--text-primary); }
.select-pill.active {
  background: var(--accent-dim);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ── Session exercise card ───────────────────────────────────────── */
.exercise-card {
  background: var(--bg-glass); border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg); padding: var(--sp-xl);
  text-align: center; min-height: 260px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: var(--sp-lg);
  transition: border-color var(--t-fast), background var(--t-fast);
}
.exercise-card.correct  { border-color: rgba(74,222,128,0.35); background: rgba(74,222,128,0.04); }
.exercise-card.incorrect{ border-color: rgba(248,113,113,0.35); background: rgba(248,113,113,0.04); }
.exercise-target {
  font-family: var(--font-display); font-size: 3rem;
  color: var(--text-primary); letter-spacing: 0.04em; line-height: 1.2;
}
.exercise-romanji { font-family: var(--font-mono); font-size: 1.15rem; color: var(--text-secondary); letter-spacing: 0.06em; }
.exercise-meaning { font-size: 1.35rem; font-weight: 500; color: var(--text-primary); }
.sess-hint-hidden { display: none; }
.sess-hint-reveal { animation: hintFadeIn 0.35s ease forwards; }
@keyframes hintFadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.hint-text { font-size: 0.85rem; color: var(--accent-primary); font-style: italic; font-family: var(--font-mono); }

/* ── Why Card ────────────────────────────────────────────────────── */
.why-card {
  background: var(--bg-surface); border: 1px solid var(--border-normal);
  border-radius: var(--r-lg); padding: var(--sp-lg);
  animation: slideUp 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  border-left: 3px solid var(--accent-primary);
}
.why-card.error-card { border-left-color: var(--error); }
.why-card-header {
  font-size: 0.66rem; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: var(--sp-sm); display: flex; align-items: center; gap: var(--sp-sm);
  font-family: var(--font-mono);
}
.why-card-error-type {
  padding: 2px 8px; border-radius: var(--r-full);
  background: var(--error-glow); color: var(--error); font-size: 0.66rem;
}
.why-card-correct { font-size: 0.9rem; color: var(--text-primary); margin-bottom: var(--sp-sm); }
.why-card-wrong   { font-size: 0.85rem; color: var(--text-secondary); }

/* ── Grammar drill ────────────────────────────────────────────────── */
.grammar-context {
  font-size: 1.6rem;
  font-family: var(--font-display);
  text-align: center;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: var(--sp-md);
}
.grammar-blank {
  color: var(--accent-primary);
  border-bottom: 2px solid var(--accent-primary);
  padding: 0 3px;
}
.grammar-pattern-note {
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  padding: 4px 10px;
  margin-top: var(--sp-sm);
}

/* ── Sentence build ───────────────────────────────────────────────── */
.sb-assembly-zone {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 54px;
  padding: 12px var(--sp-md);
  border: 1.5px dashed var(--border-normal);
  border-radius: var(--r-md);
  justify-content: center;
  align-items: center;
  margin-bottom: var(--sp-sm);
  transition: border-color 0.2s, border-style 0.2s;
}
.sb-assembly-zone:has(.sb-tile--placed) {
  border-color: var(--accent-primary);
  border-style: solid;
}
.sb-assembly-placeholder {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  pointer-events: none;
}
.sb-meaning {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: var(--sp-md);
  font-style: italic;
}
.sb-tile-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  padding: var(--sp-sm) 0;
}
.sb-tile {
  font-size: 1rem;
  padding: 8px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--border-normal);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, transform 0.1s;
  font-family: var(--font-display);
}
.sb-tile:active { transform: scale(0.95); }
.sb-tile--bank { background: var(--bg-glass); color: var(--text-primary); }
.sb-tile--bank:hover { background: var(--bg-hover); border-color: var(--accent-primary); }
.sb-tile--placed { background: var(--accent-dim); border-color: var(--accent-primary); color: var(--text-primary); }
.sb-tile--placed:hover { background: var(--bg-hover); border-color: var(--accent-primary); }

/* ── Listening Comprehension ─────────────────────────────────────── */
.lc-play-area { display: flex; flex-direction: column; align-items: center; gap: var(--sp-md); padding: var(--sp-md) 0; }
.lc-prompt { font-size: 0.9rem; color: var(--text-muted); font-family: var(--font-mono); text-align: center; }
.lc-play-btn {
  width: 72px; height: 72px; border-radius: 50%;
  background: var(--accent-dim); border: 2px solid var(--accent-primary);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-primary); transition: background 0.15s, transform 0.1s;
  padding: 0;
}
.lc-play-btn:hover { background: var(--bg-hover); transform: scale(1.08); }
.lc-play-btn:active { transform: scale(0.95); }
.lc-choices { display: flex; flex-direction: column; gap: 10px; max-width: 400px; margin: 0 auto; width: 100%; }
.lc-choice {
  width: 100%; text-align: center; font-size: 1rem; padding: 12px var(--sp-lg);
  border: 1.5px solid var(--border-normal); background: var(--bg-glass);
  color: var(--text-primary); border-radius: var(--r-md); cursor: pointer;
  transition: background 0.12s, border-color 0.12s; font-family: var(--font-display);
}
.lc-choice:hover { background: var(--bg-hover); border-color: var(--accent-primary); }
.lc-choice.selected { background: var(--accent-dim); border-color: var(--accent-primary); }
.lc-reveal { margin-top: var(--sp-md); text-align: center; }
.lc-target { font-size: 1.8rem; font-family: var(--font-display); color: var(--text-primary); margin-bottom: 4px; }
.lc-meaning { font-size: 0.88rem; color: var(--text-muted); font-style: italic; }

/* ── Conversation ────────────────────────────────────────────────── */
.conv-dialogue { display: flex; flex-direction: column; gap: var(--sp-sm); padding: var(--sp-sm) 0; }
.conv-dialogue--compact { margin-bottom: var(--sp-md); opacity: 0.5; pointer-events: none; }
.conv-bubble { max-width: 82%; padding: 10px 14px; border-radius: var(--r-md); }
.conv-bubble--a { align-self: flex-start; background: var(--bg-glass); border: 1px solid var(--border-subtle); }
.conv-bubble--b { align-self: flex-end; background: var(--accent-dim); border: 1px solid var(--accent-primary); }
.conv-speaker { font-size: 0.68rem; color: var(--text-muted); font-family: var(--font-mono); margin-bottom: 3px; text-transform: uppercase; letter-spacing: 0.06em; }
.conv-text { font-size: 1.25rem; font-family: var(--font-display); color: var(--text-primary); line-height: 1.4; }
.conv-translation { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; font-style: italic; }
.conv-question-prompt { font-size: 1rem; text-align: center; color: var(--text-secondary); font-family: var(--font-mono); padding: var(--sp-sm) 0 var(--sp-md); border-top: 1px solid var(--border-subtle); margin-top: var(--sp-sm); }

/* ── Profile stats grid ──────────────────────────────────────────── */
.profile-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
  text-align: center;
}
.profile-stat-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--accent-primary);
  display: block;
  line-height: 1.1;
}
.profile-stat-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  margin-top: 4px;
  display: block;
}

/* ── Page animations ─────────────────────────────────────────────── */
.page-enter {
  animation: pageEnter 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes pageEnter {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* (Momentum replaces day-count mechanics; legacy display removed.) */

/* ── Empty state ─────────────────────────────────────────────────── */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--sp-lg); padding: var(--sp-2xl); text-align: center;
  color: var(--text-muted);
}
.empty-state-icon { font-size: 2rem; opacity: 0.35; }
.empty-state-text { font-size: 0.875rem; max-width: 300px; line-height: 1.65; color: var(--text-muted); }

/* ── Section header ──────────────────────────────────────────────── */
.section-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: var(--sp-lg); gap: var(--sp-md);
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  line-height: 1.2;
}
.section-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.5;
}

/* ── Review session flashcard ────────────────────────────────────── */
.flashcard {
  background: var(--bg-surface);
  border: 1px solid var(--border-normal);
  border-radius: var(--r-lg);
  padding: var(--sp-xl) var(--sp-2xl);
  text-align: center;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-md);
  cursor: pointer;
  transition: all var(--t-base);
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
  position: relative;
  overflow: hidden;
}

.flashcard:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 0 24px var(--accent-glow);
}

.flashcard::before {
  content: 'TAP TO REVEAL';
  position: absolute;
  bottom: var(--sp-md);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-weight: 700;
  text-transform: uppercase;
}

.flashcard-word {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}

.flashcard-romanji {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.flashcard-translation {
  font-size: 1.1rem;
  color: var(--accent-primary);
  margin-top: var(--sp-sm);
}

.flashcard-revealed::before { display: none; }

/* ── Arena match card ────────────────────────────────────────────── */
.arena-mode-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: var(--sp-xl);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--t-fast), transform var(--t-base), box-shadow var(--t-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-md);
}

.arena-mode-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25), 0 0 20px var(--accent-glow);
}

.arena-mode-icon {
  font-size: 2.4rem;
  width: 64px; height: 64px;
  border: 1px solid var(--border-normal);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-glass);
  margin-bottom: var(--sp-sm);
}

/* ── Horizontal divider ──────────────────────────────────────────── */
.h-rule {
  height: 1px;
  background: var(--border-subtle);
  margin: var(--sp-lg) 0;
}

/* ── Section label (overline style) ─────────────────────────────── */
.overline {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-md);
  display: block;
}

/* ── Next lesson CTA ─────────────────────────────────────────────── */
.next-lesson-cta {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
  background: var(--accent-dim);
  border: 1px solid var(--accent-glow);
  border-radius: var(--r-lg);
  padding: var(--sp-lg) var(--sp-xl);
  cursor: pointer;
  transition: all var(--t-base);
  margin-bottom: var(--sp-md);
}

.next-lesson-cta:hover {
  background: rgba(var(--accent-primary), 0.15);
  box-shadow: 0 0 32px var(--accent-glow);
  transform: translateY(-2px);
}

.next-lesson-info { flex: 1; }
.next-lesson-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-primary);
  font-family: var(--font-mono);
  margin-bottom: 4px;
}
.next-lesson-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--text-primary);
  font-weight: 400;
}
.next-lesson-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-family: var(--font-mono);
}


/* ════════════════════════════════════════════════════════════════
   Workspace Dashboard — ws-* components
   ════════════════════════════════════════════════════════════════ */

.workspace-root {
  padding: 28px 32px;
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header */
.ws-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.ws-lang-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}
.ws-lang-native {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-left: 10px;
  letter-spacing: 0.06em;
}
.ws-breadcrumb {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  margin-top: 4px;
}
.ws-header-stats { display: flex; gap: 10px; flex-wrap: wrap; }
.ws-stat-chip {
  padding: 8px 16px;
  border-radius: 10px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  text-align: center;
  min-width: 70px;
}
.ws-stat-val   { display: block; font-size: 1.3rem; font-weight: 600; font-family: var(--font-mono); }
.ws-stat-label { font-size: 0.62rem; color: var(--text-muted); letter-spacing: 0.1em; text-transform: uppercase; font-family: var(--font-mono); }

/* XP Bar */
.ws-xp-bar-wrap { display: flex; flex-direction: column; gap: 5px; }
.ws-xp-bar-labels {
  display: flex; justify-content: space-between;
  font-size: 0.7rem; color: var(--text-muted); font-family: var(--font-mono);
}
.ws-xp-bar-track {
  height: 5px; background: var(--border-subtle); border-radius: 999px; overflow: hidden;
}
.ws-xp-bar-fill {
  height: 100%; border-radius: 999px; transition: width 1.2s cubic-bezier(0.22,1,0.36,1);
}

/* Grid */
.ws-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Cards */
.ws-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: 20px 22px;
  transition: border-color var(--t-fast);
}
.ws-card:hover { border-color: var(--border-normal); }
.ws-card-wide  { grid-column: 1 / -1; }
.ws-card-eyebrow {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 12px;
}

/* Phrase card */
.ws-phrase-main {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  margin-bottom: 5px;
}
.ws-phrase-romanji {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 7px;
  letter-spacing: 0.04em;
}
.ws-phrase-meaning {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
}
.ws-phrase-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.ws-tag {
  padding: 3px 10px; border-radius: 999px;
  font-size: 0.62rem; font-family: var(--font-mono);
  letter-spacing: 0.1em; text-transform: uppercase;
  border: 1px solid;
}
.ws-tag-plain {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.ws-play-btn {
  margin-left: auto; display: flex; align-items: center; gap: 5px;
  padding: 5px 12px; border-radius: 7px; border: 1px solid;
  font-size: 0.72rem; cursor: pointer;
  font-family: var(--font-mono); letter-spacing: 0.06em;
  transition: opacity var(--t-fast), transform 120ms ease;
}
.ws-play-btn:hover { opacity: 0.85; }
.ws-play-btn:active { transform: scale(0.95); }

/* Quick practice */
.ws-quick-list { display: flex; flex-direction: column; gap: 8px; }
.ws-quick-item {
  text-align: left; padding: 12px 14px; border-radius: 10px;
  background: var(--bg-hover); border: 1px solid var(--border-subtle);
  cursor: pointer; transition: transform 0.2s ease, border-color 0.2s;
}
.ws-quick-item:hover { transform: translateX(3px); border-color: var(--border-normal); }
.ws-quick-item.ws-quick-primary { }
.ws-quick-item-title { font-size: 0.86rem; font-weight: 500; color: var(--text-primary); margin-bottom: 2px; }
.ws-quick-item-sub   { font-size: 0.72rem; color: var(--text-muted); font-family: var(--font-mono); }

/* Cultural note */
.ws-cultural-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.ws-cultural-body {
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Map card */
.ws-map-header {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px;
}
.ws-link-btn {
  font-size: 0.72rem; font-family: var(--font-mono); letter-spacing: 0.06em;
  background: none; border: none; cursor: pointer; opacity: 0.85;
  transition: opacity var(--t-fast);
}
.ws-link-btn:hover { opacity: 1; }

/* Mini tree */
.mini-tree-row {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.mini-tree-node {
  width: 46px; height: 46px; border-radius: 10px;
  background: var(--bg-hover); border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  position: relative; transition: transform 0.2s;
}
.mini-tree-node:hover { transform: scale(1.05); }
.mini-tree-node.locked { opacity: 0.35; }
.mini-tree-kanji { font-size: 1.15rem; line-height: 1; }
.mini-tree-dot {
  position: absolute; top: -3px; right: -3px;
  width: 10px; height: 10px; border-radius: 50%;
  border: 1.5px solid var(--bg-surface);
}
.mini-tree-line { width: 14px; height: 1px; background: var(--border-subtle); }
.mini-tree-more { font-size: 0.68rem; color: var(--text-muted); font-family: var(--font-mono); margin-left: 4px; }

/* Skill tree full view */
.skill-tree-node { cursor: default; }
.skill-tree-node.unlocked { cursor: pointer; }
.skill-tree-icon {
  width: 56px; height: 56px; border-radius: 12px;
  border: 1px solid; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 5px; transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}
.skill-dot {
  position: absolute; top: -4px; right: -4px;
  width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid var(--bg-surface);
}
.skill-tree-label {
  font-size: 0.6rem; color: var(--text-muted); font-family: var(--font-mono);
  line-height: 1.3; text-align: center;
}

/* Activity feed */
.ws-feed { display: flex; flex-direction: column; gap: 10px; }
.ws-feed-item { display: flex; align-items: center; gap: 10px; }
.ws-feed-avatar {
  width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid; display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem; font-weight: 600; flex-shrink: 0;
}
.ws-feed-content { flex: 1; min-width: 0; }
.ws-feed-text {
  font-size: 0.8rem; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ws-feed-meta {
  font-size: 0.67rem; color: var(--text-muted); font-family: var(--font-mono); margin-top: 1px;
}

/* Progress stats */
.ws-stats-list { display: flex; flex-direction: column; gap: 12px; }
.ws-stat-row {}
.ws-stat-row-labels {
  display: flex; justify-content: space-between;
  font-size: 0.72rem; color: var(--text-muted); font-family: var(--font-mono);
  margin-bottom: 4px;
}
.ws-stat-track { height: 4px; background: var(--border-subtle); border-radius: 999px; overflow: hidden; }
.ws-stat-fill  { height: 100%; border-radius: 999px; }

/* Preferences options */
.pref-option {
  display: flex; align-items: center; gap: 14px;
  padding: 13px 16px; border-radius: 10px; cursor: pointer;
  background: var(--bg-glass); border: 1px solid var(--border-subtle);
  transition: all 0.2s; user-select: none;
}
.pref-option:hover { border-color: var(--border-normal); }
.pref-radio {
  width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--border-normal);
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  transition: all 0.18s;
}

/* Review item */
.review-item { transition: border-color 0.2s; }
.review-item:hover { border-color: var(--border-normal); }

/* ── Hero lesson card ──────────────────────────────────────────── */
.ws-hero-card {
  padding: 22px 24px 18px;
}
.ws-hero-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.ws-hero-text { flex: 1; min-width: 0; }
.ws-hero-title {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ws-hero-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.ws-hero-btn {
  font-size: 0.88rem;
  padding: 10px 22px;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.ws-hero-stage-bar-track {
  height: 3px;
  background: var(--border-subtle);
  border-radius: 999px;
  overflow: hidden;
}
.ws-hero-stage-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Secondary row ─────────────────────────────────────────────── */
.ws-secondary-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.ws-review-hub-card {}
.ws-review-empty {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ws-review-empty-icon {
  font-size: 1.1rem;
  opacity: 0.45;
  flex-shrink: 0;
}
.ws-review-btn {
  font-size: 0.8rem;
  padding: 8px 16px;
  background: transparent;
  white-space: nowrap;
}
.ws-review-btn:hover { opacity: 0.9; }
.ws-locked-hint {
  display: flex;
  align-items: center;
  gap: 7px;
  opacity: 0.45;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ── Ambient row ───────────────────────────────────────────────── */
.ws-ambient-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Extras tile row ───────────────────────────────────────────── */
.ws-extras-section {}
.ws-extras-eyebrow {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 10px;
}
.ws-extras-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.ws-extra-tile {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 14px 14px 12px;
  border-radius: var(--r-lg);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--t-fast), transform var(--t-fast);
}
.ws-extra-tile:hover {
  border-color: var(--border-normal);
  transform: translateY(-1px);
}
.ws-extra-tile:active { transform: translateY(0); }
.ws-extra-tile--locked {
  opacity: 0.38;
  cursor: default;
  pointer-events: none;
}
.ws-extra-tile-icon {
  margin-bottom: 4px;
  display: flex;
}
.ws-extra-tile-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.2;
}
.ws-extra-tile-sub {
  font-size: 0.67rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ════════════════════════════════════════════════════════════════
   Arena — mode cards + in-session HUD
   ════════════════════════════════════════════════════════════════ */

.arena-mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 8px;
}
.arena-mode-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--t-fast);
}
.arena-mode-card:hover { border-color: var(--border-normal); }
.arena-mode-icon { display: flex; }
.arena-mode-content { flex: 1; }
.arena-mode-title {
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 5px;
}
.arena-mode-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 10px;
}
.arena-mode-meta { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 2px; }
.arena-mode-badge {
  font-size: 0.64rem;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  background: transparent;
}

/* In-session HUD */
.arena-hud {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 5px;
}
.arena-hud-q,
.arena-hud-score {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.arena-timer-bar-wrap {
  flex: 1;
  height: 3px;
  background: var(--border-subtle);
  border-radius: 999px;
  overflow: hidden;
}
.arena-timer-fill { height: 100%; border-radius: 999px; width: 100%; }
.arena-hud-timer-label {
  font-size: 0.67rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-align: right;
  margin-bottom: 14px;
}

/* Dictation text input */
.arena-text-input {
  padding: 12px 16px;
  font-size: 1rem;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  background: var(--bg-hover);
  border: 1px solid var(--border-normal);
  border-radius: 10px;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--t-fast);
  width: 100%;
  box-sizing: border-box;
}
.arena-text-input:focus {
  border-color: rgba(255,255,255,0.25);
  box-shadow: 0 0 0 2px rgba(255,255,255,0.04);
}
.arena-text-input:disabled { opacity: 0.6; }

/* Sentence Forge */
.arena-forge-slots {
  min-height: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg-hover);
  border: 1px solid var(--border-subtle);
}
.arena-tokens-area { display: flex; flex-wrap: wrap; gap: 8px; padding: 6px 0; }
.arena-token {
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-normal);
  background: var(--bg-glass);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), transform 0.15s;
  line-height: 1.4;
}
.arena-token:hover:not([disabled]) {
  background: var(--bg-hover);
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-1px);
}
.arena-token:active:not([disabled]) { transform: translateY(0); }
.arena-token--placed { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.18); }
.arena-token--placed:hover:not([disabled]) { background: rgba(248,113,113,0.08); border-color: var(--error); }
.arena-token--used { opacity: 0.2; pointer-events: none; }
.arena-token[disabled]:not(.arena-token--used) { opacity: 0.5; pointer-events: none; }

/* ── Profile Page ────────────────────────────────────────────────── */

/* Header card: banner strip + floating avatar overlap */
.prof-header-card {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  margin-bottom: 16px;
}
.prof-header-banner {
  height: 96px;
  flex-shrink: 0;
}
.prof-header-body {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  padding: 0 24px 20px 20px;
  margin-top: -40px;
}
.prof-avatar-wrap {
  flex-shrink: 0;
  position: relative;
  width: 80px;
  height: 80px;
  overflow: visible;
}
.prof-avatar-inner {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 600;
  overflow: hidden;
  box-shadow: 0 0 0 3px var(--bg-surface);
}
.prof-header-identity {
  flex: 1;
  min-width: 0;
  padding-top: 44px;  /* pushes text below avatar overlap */
}
.prof-display-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.prof-glyph-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 5px;
}
.prof-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding-top: 44px;
}

/* Body: two-column grid */
.prof-body-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 14px;
  align-items: start;
}

/* Left column */
.prof-left-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px 16px;
}
.prof-bio-slot {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.6;
  min-height: 4px;
}
.prof-stat-cluster {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.prof-stat-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 6px;
  background: var(--bg-hover);
  border-radius: 8px;
  text-align: center;
}
.prof-stat-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}
.prof-stat-label {
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-top: 3px;
  white-space: nowrap;
}
.prof-familiar-slot {
  display: flex;
  justify-content: center;
  min-height: 4px;
}
.prof-familiar-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}

/* Right column */
.prof-right-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.prof-achievement-section {
  padding: 16px;
}
.prof-section-eyebrow {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 10px;
}
.prof-section-loading {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  padding: 4px 0;
}
.prof-section-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 14px 0;
}

/* Trophy showcase */
.prof-trophy-showcase { /* wrapper */ }
.prof-trophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
  gap: 8px;
}
.prof-trophy-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 6px;
  border-radius: 10px;
  background: var(--bg-hover);
  cursor: default;
  transition: background var(--t-fast);
}
.prof-trophy-cell:hover { background: var(--bg-glass); }
.prof-trophy-icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.prof-trophy-name {
  font-size: 0.62rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.35;
  word-break: break-word;
  max-width: 72px;
}
.prof-trophy-tier {
  font-size: 0.58rem;
  text-transform: capitalize;
  letter-spacing: 0.04em;
}
.prof-trophy-count {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

/* Seals board */
.prof-seals-board {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.prof-seals-lang-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.prof-seals-lang-label {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  font-weight: 500;
}
.prof-seals-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* Language progress cards */
.prof-lang-progress-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.prof-lang-card {
  display: flex;
  align-items: stretch;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-hover);
}
.prof-lang-accent-bar {
  width: 3px;
  flex-shrink: 0;
}
.prof-lang-body {
  flex: 1;
  padding: 10px 12px;
}
.prof-lang-name {
  font-size: 0.78rem;
  font-weight: 500;
  margin-bottom: 3px;
}
.prof-lang-meta {
  font-size: 0.7rem;
  color: var(--text-secondary);
  display: flex;
  gap: 5px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 7px;
}
.prof-lang-sep { color: var(--text-muted); opacity: 0.5; }
.prof-lang-bar-track {
  height: 3px;
  background: var(--bg-surface);
  border-radius: 2px;
  overflow: hidden;
}
.prof-lang-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Full-width desk card */
.prof-desk-card {
  margin-top: 14px;
  padding: 18px 18px 14px 18px;
}

/* ── Account / Settings strip ───────────────────────────────────── */

/* Account info card at the top of the Settings page */
.acct-strip {
  padding: 16px 18px;
  margin-bottom: 22px;
}

/* ── Friends page ───────────────────────────────────────────────── */

/* Search card container */
.fr-search-card {
  margin-bottom: 20px;
  padding: 16px 18px 14px;
}

/* Section eyebrow labels (Incoming / Sent / Friends / Find Learners) */
.fr-section-label {
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--font-mono);
  padding: 4px 0 10px;
}

/* Empty state */
.fr-empty-state {
  padding: 44px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* Pending / Outgoing request card */
.fr-pending-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  margin-bottom: 7px;
  background: var(--bg-hover);
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  /* border-left override set inline per card for accent color */
}

/* Accepted friend row — clickable */
.fr-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  margin-bottom: 7px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.14s, border-color 0.14s;
}
.fr-row:hover {
  background: var(--bg-hover);
  border-color: var(--border-normal);
}

/* Avatar base */
.fr-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

/* Larger avatar for accepted friend rows */
.fr-avatar--lg {
  width: 40px;
  height: 40px;
}

/* Online presence dot */
.fr-online-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #4ade80;
  border: 2px solid var(--bg-surface);
}

/* Name text */
.fr-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Stage chip — plain inline label */
.fr-stage-chip {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Search result row */
.fr-search-result {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin-bottom: 5px;
  border-radius: 9px;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background 0.13s;
}
.fr-search-result:hover {
  background: var(--bg-hover);
}
.fr-search-result--me {
  cursor: default;
  opacity: 0.6;
}
.fr-search-result--me:hover {
  background: transparent;
}

/* ── Performance Board — identity-forward rows ──────────────────── */

/* Column header bar */
.lb-col-header {
  display: grid;
  gap: 8px;
  padding: 10px 20px 10px 20px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.6rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Top-3 rank number — bold, accented */
.lb-rank-medal {
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-mono);
  line-height: 1;
}

/* Normal rank number — quiet */
.lb-rank-num {
  font-size: 0.82rem;
  font-weight: 500;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

/* Language chip (JP / KO / ES) */
.lb-lang-chip {
  display: inline-block;
  font-size: 0.58rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid transparent;
  line-height: 1.6;
}

/* Stage chip */
.lb-stage-chip {
  display: inline-block;
  font-size: 0.66rem;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: 5px;
  border: 1px solid transparent;
  white-space: nowrap;
}

/* Top-3 row variant — left accent set inline per row */
.lb-row--top3 .lb-rank-medal {
  filter: drop-shadow(0 0 4px currentColor);
}

/* Own-user row — cursor default, no hover shift */
.lb-row--me {
  cursor: default !important;
}

/* ── Mobile — bookmark tab style ───────────────────────────────── */
@media (max-width: 768px) {
  .workspace-root { padding: 16px; gap: 14px; }
  .ws-grid { grid-template-columns: 1fr; }
  .ws-card-wide { grid-column: 1; }
  .ws-secondary-row  { grid-template-columns: 1fr; }
  .ws-ambient-row    { grid-template-columns: 1fr; }
  .ws-extras-row     { grid-template-columns: repeat(2, 1fr); }
  .ws-hero-body      { flex-direction: column; align-items: flex-start; gap: 12px; }
  .ws-hero-btn       { width: 100%; text-align: center; justify-content: center; }
  .arena-mode-grid   { grid-template-columns: 1fr; }
  .prof-body-grid    { grid-template-columns: 1fr; }
  .prof-header-body  { flex-wrap: wrap; gap: 10px; margin-top: -28px; }
  .prof-header-identity { padding-top: 36px; }
  .prof-header-actions  { padding-top: 0; flex-wrap: wrap; }
  .prof-trophy-grid  { grid-template-columns: repeat(3, 1fr); }
  /* Leaderboard — collapse stage chip on mobile to save space */
  .lb-stage-chip     { font-size: 0.6rem; padding: 2px 5px; }
  .lb-lang-chip      { display: none; }

  .left-panel,
  .right-panel {
    position: fixed; bottom: 0; height: auto !important;
    width: 100% !important; min-width: 100% !important;
    flex-direction: row !important; z-index: var(--z-panel);
    border-right: none !important; border-left: none !important;
    border-top: 1px solid var(--border-subtle) !important;
    backdrop-filter: blur(12px) saturate(1.4);
    -webkit-backdrop-filter: blur(12px) saturate(1.4);
  }
  .left-panel  { bottom: 0; }
  .right-panel { display: none !important; }

  .panel-header { display: none !important; }
  .panel-footer { display: none !important; }

  .panel-nav {
    flex-direction: row !important;
    overflow-x: auto; overflow-y: hidden;
    padding: 6px 10px !important;
    gap: 4px; scrollbar-width: none;
    width: 100%; justify-content: space-around;
  }
  .panel-nav::-webkit-scrollbar { display: none; }

  .nav-item {
    flex-direction: column !important;
    align-items: center !important;
    gap: 3px !important;
    padding: 8px 10px !important;
    border-radius: 10px !important;
    min-width: 58px;
    flex-shrink: 0;
  }
  .nav-item .nav-item-label {
    font-size: 0.58rem !important;
    letter-spacing: 0.04em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 56px;
  }
  .nav-item.active { background: var(--bg-active) !important; }

  .center-canvas { padding-bottom: 80px; }

  .challenge-card { /* already 1-col on mobile via ws-grid */ }
}

/* ── Right panel canvas-content spacing ──────────────────────────── */
.canvas-content {
  padding: var(--sp-xl) var(--sp-lg);
  max-width: 860px;
  animation: pageEnter 0.3s cubic-bezier(0.22,1,0.36,1) both;
}
@media (max-width:768px) {
  .canvas-content { padding: 16px; }
}