/* ==========================================================================
   EchoMinds — Dashboard Layout
   Sidebar shell, topbar, stat tiles, chart surfaces, dashboard-only pieces
   ========================================================================== */

.app-shell {
  display: grid;
  grid-template-columns: 272px 1fr;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
  background: var(--color-surface);
  border-right: 1px solid var(--color-border-soft);
  padding: var(--space-6) var(--space-5);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 500;
  transition: transform var(--dur-base) var(--ease-out);
}

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 800;
  font-size: var(--fs-md);
  padding: var(--space-2) var(--space-2) var(--space-8);
}

.sidebar__section-label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  padding: var(--space-2);
  margin-top: var(--space-4);
}

.sidebar-nav { display: flex; flex-direction: column; gap: var(--space-1); }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.7rem var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  position: relative;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.sidebar-nav a svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-nav a:hover { background: var(--color-bg-alt); color: var(--color-text); }
.sidebar-nav a.is-active {
  background: var(--gradient-brand-soft);
  color: var(--color-primary);
}
.sidebar-nav a .badge-count {
  margin-left: auto;
  font-size: 10px;
  font-weight: 700;
  background: var(--gradient-brand);
  color: #fff;
  padding: 1px 7px;
  border-radius: var(--radius-pill);
}

.sidebar__footer {
  margin-top: auto;
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-soft);
}
.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast);
  cursor: pointer;
}
.sidebar__user:hover { background: var(--color-bg-alt); }
.sidebar__user .table-avatar { width: 38px; height: 38px; }
.sidebar__user strong { display: block; font-size: var(--fs-sm); }
.sidebar__user span { font-size: var(--fs-xs); color: var(--color-text-secondary); }

.icon-btn.sidebar-close, .sidebar-overlay { display: none; }

/* ---------- Main area ---------- */
.main-area { min-width: 0; display: flex; flex-direction: column; }

.topbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-3);
  padding-inline: var(--space-8);
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 400;
}
.topbar h1 { font-size: var(--fs-lg); line-height: 1.25; }
.topbar__meta { font-size: var(--fs-xs); color: var(--color-text-secondary); margin-top: 2px; }
.topbar__actions { display: flex; align-items: center; gap: var(--space-3); }
.sidebar-toggle { display: none; }

.icon-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  display: grid;
  place-items: center;
  cursor: pointer;
  position: relative;
  transition: transform var(--dur-fast) var(--ease-spring), border-color var(--dur-fast);
}
.icon-btn:hover { transform: translateY(-2px); border-color: var(--color-primary); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn .dot { position: absolute; top: 8px; right: 9px; width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); border: 2px solid var(--color-surface); }

.dashboard-content { padding: var(--space-8); flex: 1; }

/* ---------- Grid system ---------- */
.dash-grid { display: grid; gap: var(--space-6); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-main-side { grid-template-columns: 2fr 1fr; }
.grid-side-main { grid-template-columns: 1fr 2fr; }

/* ---------- Stat tiles ---------- */
.stat-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.stat-tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.stat-tile__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-5); }
.stat-tile__icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  background: var(--gradient-brand-soft);
  color: var(--color-primary);
}
.stat-tile__icon svg { width: 20px; height: 20px; }
.stat-tile__icon.warning { background: rgba(245,158,11,0.12); color: var(--color-warning); }
.stat-tile__icon.danger { background: rgba(239,68,68,0.12); color: var(--color-danger); }
.stat-tile__icon.success { background: rgba(34,197,94,0.12); color: var(--color-success); }
.stat-tile__trend { font-size: var(--fs-xs); font-weight: 700; display: inline-flex; align-items: center; gap: 3px; }
.stat-tile__trend.up { color: var(--color-success); }
.stat-tile__trend.down { color: var(--color-danger); }
.stat-tile__trend svg { width: 13px; height: 13px; }
.stat-tile strong { font-size: var(--fs-2xl); display: block; }
.stat-tile span.label { font-size: var(--fs-sm); color: var(--color-text-secondary); }

/* ---------- Chart surfaces ---------- */
.chart-card canvas { width: 100% !important; height: 230px !important; }
.chart-legend { display: flex; gap: var(--space-5); margin-top: var(--space-4); flex-wrap: wrap; }
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-xs); color: var(--color-text-secondary); }
.chart-legend i { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }

.bar-chart { display: flex; align-items: flex-end; gap: var(--space-3); height: 200px; padding-top: var(--space-4); }
.bar-chart__col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: var(--space-2); height: 100%; justify-content: flex-end; }
.bar-chart__bar {
  width: 60%;
  border-radius: 8px 8px 4px 4px;
  background: var(--gradient-brand);
  transition: transform var(--dur-base) var(--ease-out), filter var(--dur-base);
  transform-origin: bottom;
}
.bar-chart__col:hover .bar-chart__bar { filter: brightness(1.1); transform: scaleY(1.02); }
.bar-chart__label { font-size: var(--fs-xs); color: var(--color-text-secondary); }

.donut-wrap { display: flex; align-items: center; gap: var(--space-8); flex-wrap: wrap; justify-content: center; }

/* ---------- Welcome banner (student dashboard) ---------- */
.welcome-banner {
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  background: var(--gradient-brand);
  color: #fff;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.welcome-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(400px 260px at 90% 0%, rgba(255,255,255,0.22), transparent 60%);
}
.welcome-banner__text { position: relative; max-width: 520px; }
.welcome-banner h2 { font-size: var(--fs-2xl); margin-bottom: var(--space-2); }
.welcome-banner p { opacity: 0.92; font-size: var(--fs-sm); }
.welcome-banner__actions { position: relative; display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ---------- Timeline list (recent activity) ---------- */
.activity-list { display: flex; flex-direction: column; }
.activity-item { display: flex; gap: var(--space-4); padding-block: var(--space-4); border-bottom: 1px solid var(--color-border-soft); }
.activity-item:last-child { border-bottom: none; padding-bottom: 0; }
.activity-item:first-child { padding-top: 0; }
.activity-item__icon {
  width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center; flex-shrink: 0;
  background: var(--color-bg-alt); color: var(--color-primary);
}
.activity-item__icon svg { width: 17px; height: 17px; }
.activity-item p { font-size: var(--fs-sm); }
.activity-item time { font-size: var(--fs-xs); color: var(--color-text-muted); }

/* ---------- Recommendation cards ---------- */
.reco-card { display: flex; gap: var(--space-4); padding: var(--space-5); border-radius: var(--radius-md); background: var(--color-bg-alt); }
.reco-card + .reco-card { margin-top: var(--space-3); }
.reco-card__icon { width: 38px; height: 38px; border-radius: var(--radius-sm); background: var(--color-surface); display: grid; place-items: center; flex-shrink: 0; color: var(--color-primary); }
.reco-card__icon svg { width: 18px; height: 18px; }
.reco-card h5 { font-size: var(--fs-sm); margin-bottom: 2px; }
.reco-card p { font-size: var(--fs-xs); color: var(--color-text-secondary); }

/* ---------- Resource cards ---------- */
.resource-card {
  display: block;
  padding: var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-soft);
  transition: transform var(--dur-fast), box-shadow var(--dur-fast), border-color var(--dur-fast);
}
.resource-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: rgba(37,99,235,0.22); }
.resource-card__icon { width: 36px; height: 36px; border-radius: var(--radius-sm); background: var(--gradient-brand-soft); color: var(--color-primary); display: grid; place-items: center; margin-bottom: var(--space-3); }
.resource-card__icon svg { width: 17px; height: 17px; }
.resource-card h5 { font-size: var(--fs-sm); margin-bottom: 2px; }
.resource-card p { font-size: var(--fs-xs); color: var(--color-text-secondary); }

/* ---------- Filter/search bar ---------- */
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-6); flex-wrap: wrap; }
.toolbar__search { position: relative; flex: 1; min-width: 220px; max-width: 340px; }
.toolbar__search svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 17px; height: 17px; color: var(--color-text-muted); }
.toolbar__search input { padding-left: 2.6rem; }
.toolbar__filters { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ---------- Pagination ---------- */
.pagination { display: flex; align-items: center; justify-content: space-between; padding-top: var(--space-5); font-size: var(--fs-xs); color: var(--color-text-secondary); flex-wrap: wrap; gap: var(--space-3); }
.pagination__pages { display: flex; gap: var(--space-2); }
.pagination__pages button {
  width: 32px; height: 32px; border-radius: var(--radius-sm);
  border: 1px solid var(--color-border); background: var(--color-surface);
  cursor: pointer; font-size: var(--fs-xs); font-weight: 600;
  transition: all var(--dur-fast);
}
.pagination__pages button.is-active, .pagination__pages button:hover { background: var(--gradient-brand); color: #fff; border-color: transparent; }

/* ---------- Settings page blocks ---------- */
.settings-nav { display: flex; flex-direction: column; gap: var(--space-1); }
.settings-nav button {
  display: flex; align-items: center; gap: var(--space-3);
  width: 100%; text-align: left;
  padding: 0.75rem var(--space-4);
  border-radius: var(--radius-sm);
  border: none; background: transparent; cursor: pointer;
  font-size: var(--fs-sm); font-weight: 600; color: var(--color-text-secondary);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.settings-nav button svg { width: 18px; height: 18px; }
.settings-nav button:hover { background: var(--color-bg-alt); color: var(--color-text); }
.settings-nav button.is-active { background: var(--gradient-brand-soft); color: var(--color-primary); }

.settings-panel { display: none; }
.settings-panel.is-active { display: block; }

.toggle-row { display: flex; align-items: center; justify-content: space-between; padding-block: var(--space-4); border-bottom: 1px solid var(--color-border-soft); gap: var(--space-4); }
.toggle-row:last-child { border-bottom: none; }
.toggle-row h5 { font-size: var(--fs-sm); margin-bottom: 2px; }
.toggle-row p { font-size: var(--fs-xs); color: var(--color-text-secondary); }

.switch { position: relative; width: 46px; height: 26px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch__track {
  position: absolute; inset: 0; border-radius: var(--radius-pill);
  background: var(--color-border); cursor: pointer; transition: background var(--dur-base);
}
.switch__track::before {
  content: ''; position: absolute; width: 20px; height: 20px; left: 3px; top: 3px;
  border-radius: 50%; background: #fff; box-shadow: var(--shadow-xs);
  transition: transform var(--dur-base) var(--ease-spring);
}
.switch input:checked + .switch__track { background: var(--gradient-brand); }
.switch input:checked + .switch__track::before { transform: translateX(20px); }

/* ---------- Profile header ---------- */
.profile-header { display: flex; align-items: center; gap: var(--space-6); flex-wrap: wrap; }
.profile-header__avatar {
  width: 96px; height: 96px; border-radius: 50%;
  background: var(--gradient-brand); color: #fff;
  display: grid; place-items: center; font-size: var(--fs-2xl); font-weight: 800;
  box-shadow: var(--shadow-glow);
  position: relative;
  flex-shrink: 0;
}
.profile-header__avatar button {
  position: absolute; bottom: -2px; right: -2px;
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--color-surface); border: 2px solid var(--color-bg);
  display: grid; place-items: center; cursor: pointer; color: var(--color-primary);
}
.profile-header__avatar button svg { width: 14px; height: 14px; }
.profile-header h2 { font-size: var(--fs-xl); }
.profile-header p { color: var(--color-text-secondary); font-size: var(--fs-sm); margin-top: 2px; }
.profile-header__stats { display: flex; gap: var(--space-6); margin-top: var(--space-4); }
.profile-header__stats div strong { display: block; font-size: var(--fs-lg); }
.profile-header__stats div span { font-size: var(--fs-xs); color: var(--color-text-secondary); }

/* ---------- Assessment page ---------- */
.assessment-shell { max-width: 820px; margin-inline: auto; }
.assessment-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-3); font-size: var(--fs-xs); color: var(--color-text-secondary); flex-wrap: wrap; gap: var(--space-2); }
.assessment-toolbar .lang-indicator { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; }
.assessment-toolbar .lang-indicator i { width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }
.assessment-textarea-wrap { position: relative; }
#assessment-textarea { min-height: 280px; font-size: var(--fs-md); padding: var(--space-6); }
.assessment-meta { display: flex; justify-content: space-between; margin-top: var(--space-3); font-size: var(--fs-xs); color: var(--color-text-muted); flex-wrap: wrap; gap: var(--space-2); }
.assessment-prompts { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-5); }
.assessment-prompts button {
  padding: 0.5rem 1rem; border-radius: var(--radius-pill);
  background: var(--color-bg-alt); border: 1px solid var(--color-border-soft);
  font-size: var(--fs-xs); font-weight: 600; cursor: pointer; color: var(--color-text-secondary);
  transition: all var(--dur-fast);
}
.assessment-prompts button:hover { border-color: var(--color-primary); color: var(--color-primary); }

.analyze-overlay {
  position: fixed; inset: 0; z-index: 3000;
  background: var(--color-bg);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-6);
  opacity: 0; pointer-events: none; transition: opacity var(--dur-base) var(--ease-out);
}
.analyze-overlay.is-active { opacity: 1; pointer-events: auto; }
.analyze-overlay h3 { font-size: var(--fs-lg); }
.analyze-overlay p { color: var(--color-text-secondary); font-size: var(--fs-sm); }
.analyze-steps { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.analyze-steps li { display: flex; align-items: center; gap: var(--space-3); font-size: var(--fs-sm); color: var(--color-text-muted); transition: color var(--dur-base); }
.analyze-steps li.is-active { color: var(--color-text); font-weight: 600; }
.analyze-steps li.is-done { color: var(--color-success); }
.analyze-steps li .step-dot { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--color-border); flex-shrink: 0; display: grid; place-items: center; transition: all var(--dur-base); }
.analyze-steps li.is-active .step-dot { border-color: var(--color-primary); }
.analyze-steps li.is-done .step-dot { border-color: var(--color-success); background: var(--color-success); }
.analyze-steps li.is-done .step-dot svg { width: 11px; height: 11px; color: #fff; }