/* === Dark surface (sidebar) === */
.glass-card-dark {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-right: 1px solid var(--outline-variant);
  color: var(--on-surface);
}
.glass-nav {
  background: rgba(6, 15, 26, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--outline-variant);
}

/* === Button === */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 500;
  border: 1px solid transparent;
  transition: background var(--t-fast), border var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
  cursor: pointer;
  white-space: nowrap;
  font-family: inherit;
}
.btn--primary {
  background: var(--accent);
  color: var(--primary-deep);
  border: 1px solid var(--accent);
}
.btn--primary:hover { background: var(--accent-light); border-color: var(--accent-light); transform: translateY(-1px); box-shadow: var(--glow-accent); }

.btn--accent {
  background: var(--btn-accent-bg);
  color: var(--btn-accent-text);
  font-weight: 600;
  border: 1px solid var(--btn-accent-bg);
  box-shadow: var(--shadow-sm);
}
.btn--accent:hover {
  filter: brightness(1.1);
}

.btn--ghost {
  background: transparent;
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
}
.btn--ghost:hover { background: var(--surface-container); border-color: var(--outline); }

.btn--ghost-dark {
  background: transparent;
  color: var(--on-surface);
  border: 1px solid var(--glass-border-dark);
}
.btn--ghost-dark:hover { background: var(--accent-fade); color: var(--accent-light); border-color: var(--accent-dim); }

.btn--danger {
  background: transparent;
  color: var(--expense);
  border: 1px solid var(--expense);
}
.btn--danger:hover { background: var(--expense-bg); }
.btn--sm { padding: 6px 14px; font-size: 12px; }

/* === Sidebar === */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  padding: 20px 10px 14px;
  display: flex; flex-direction: column;
  gap: 2px;
  position: sticky; top: 0;
  background: var(--surface-container-low);
}
.sidebar .brand {
  display: flex; align-items: center; gap: 10px;
  padding: 2px 8px 22px;
  border-bottom: 1px solid var(--accent-border-subtle);
  margin-bottom: 16px;
}
.sidebar .brand .logo-mark {
  width: 48px; height: 48px;
  flex-shrink: 0;
  display: block;
}
.sidebar .brand-text { display: flex; flex-direction: column; gap: 2px; line-height: 1.1; }
.sidebar .brand h1 {
  font-family: var(--font-headline);
  font-size: 16px; font-weight: 700;
  color: var(--on-surface);
  letter-spacing: -0.01em;
  white-space: nowrap;
  margin: 0;
}
.sidebar .brand .sub {
  font-size: 10.5px;
  color: var(--inverse-on-surface-muted);
  font-weight: 400;
  letter-spacing: 0.02em;
}
.sidebar nav {
  display: flex; flex-direction: column; gap: 1px;
  flex: 1;
  margin-top: 4px;
}
.sidebar nav .nav-label {
  font-size: 10.5px;
  color: var(--accent-dark);
  letter-spacing: 0.08em;
  padding: 10px 10px 4px;
  font-weight: 500;
  text-transform: uppercase;
}
.sidebar-item {
  display: flex; align-items: center;
  min-height: 44px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  color: var(--on-surface);
  font-size: 13px; font-weight: 500;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
  text-decoration: none;
  position: relative;
}
.sidebar-item:hover { background: var(--accent-hover-bg); }
.sidebar-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.sidebar-item.active {
  background: linear-gradient(90deg, rgba(233,193,118,0.22) 0%, transparent 100%);
  color: var(--accent-light);
  box-shadow: inset 3px 0 0 var(--accent);
}

.sidebar-bottom {
  margin-top: auto;
}

/* PeakMind 二元敘事 — 「丘」(精準/穩健) × 「山」(靈動/宏大) 品牌哲學 */
.sidebar .brand-tagline {
  margin: 0;
  padding: 12px 12px 8px;
  font-family: var(--font-headline);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-align: center;
  color: var(--inverse-on-surface-muted);
  border-top: 1px solid var(--accent-border-subtle);
  display: flex; align-items: center; justify-content: center; gap: 5px;
  user-select: none;
}
.sidebar .brand-tagline .dot {
  color: var(--accent);
  opacity: 0.55;
  font-weight: 700;
}
@media (max-width: 768px) {
  .sidebar .brand-tagline { font-size: 9.5px; padding: 10px 8px 6px; gap: 3px; letter-spacing: 0.12em; }
}
.sidebar .user-chip {
  padding: 8px 12px 10px;
  border-top: none;
  font-size: 12px;
  color: var(--inverse-on-surface-muted);
  display: flex; align-items: center; justify-content: space-between;
}
.sidebar-actions {
  display: flex;
  gap: 2px;
  padding: 6px 8px 4px;
  border-top: 1px solid var(--accent-border-subtle);
}
.sidebar-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
  flex-shrink: 0;
}
.sidebar-icon-btn svg { width: 18px; height: 18px; }
.sidebar-icon-btn:hover { background: var(--hover-bg); color: var(--on-surface); }
.sidebar-icon-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Theme icon visibility — use double-class specificity to beat .sidebar-icon-btn svg */
.sidebar-icon-btn .icon-moon { display: none; }
.sidebar-icon-btn .icon-sun  { display: block; }
html[data-theme="light"] .sidebar-icon-btn .icon-sun  { display: none; }
html[data-theme="light"] .sidebar-icon-btn .icon-moon { display: block; }

/* Sidebar reveal button (shown when collapsed) */
.sidebar-reveal-btn {
  position: fixed;
  top: calc(10px + env(safe-area-inset-top, 0px));
  left: calc(10px + env(safe-area-inset-left, 0px));
  z-index: var(--z-sidebar-reveal);
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  color: var(--on-surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background var(--t-fast), color var(--t-fast);
}
.sidebar-reveal-btn:hover { background: var(--surface-container-low); color: var(--on-surface); }
.sidebar-reveal-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.sidebar-reveal-btn svg { width: 18px; height: 18px; display: block; }

/* === App shell layout === */
.app {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  flex-shrink: 0;
  width: var(--sidebar-w);
  overflow: hidden;
  transition: width 0.3s var(--ease-quint), padding 0.3s var(--ease-quint);
}
.sidebar.collapsed {
  width: 0;
  padding: 0;
}
@media (prefers-reduced-motion: reduce) {
  .sidebar { transition: none; }
  .sidebar-item, .sidebar-icon-btn, .sidebar-reveal-btn { transition: none; }
}
.app > main {
  flex: 1;
  min-width: 0;
  background: var(--surface);
}

/* === Card === */
.card {
  background: var(--surface-container-lowest);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

/* === Toast === */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  padding: 10px 16px; border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--primary-deep);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--primary-container);
  opacity: 0; transform: translateY(8px);
  transition: opacity var(--t-base), transform var(--t-base);
  z-index: var(--z-toast);
  font-size: 13px; font-weight: 500;
  max-width: 320px;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.ok { background: var(--income); border-color: var(--income); }
.toast.err { background: var(--expense); border-color: var(--expense); }

/* === Modal === */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(5, 14, 26, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center; justify-content: center;
  z-index: var(--z-modal-backdrop);
}
.modal-backdrop.show { display: flex; }
.modal {
  background: var(--surface-container-lowest);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  padding: 20px;
  width: 92%; max-width: 520px;
  max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal h3 {
  margin: 0 0 14px;
  color: var(--on-surface);
  font-family: var(--font-headline);
  font-weight: 600;
}
.modal .btns {
  display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px;
}

/* === Top header (module) === */
.topbar {
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: var(--z-sticky);
}
.topbar h1 { font-size: 18px; font-weight: 600; letter-spacing: -0.015em; }
.topbar .actions { display: flex; gap: 8px; align-items: center; }

/* === Login page ===
   置中 card，簡潔單欄 */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--surface);
}
.login-card {
  width: 100%; max-width: 420px;
  padding: 40px 36px;
  border: 1px solid var(--outline-variant);
  box-shadow: var(--shadow-lg);
  background: var(--surface-container-lowest);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.login-card .logo-row {
  display: flex; align-items: center; gap: 14px; margin-bottom: 28px;
}
.login-card .logo-mark { width: 62px; height: 62px; display: block; flex-shrink: 0; transform: translateY(-3px); }
.login-card h1 {
  font-family: var(--font-headline);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--on-surface);
}
.login-card .sub {
  font-size: 12px;
  color: var(--on-surface-muted);
  margin-top: 3px;
  letter-spacing: 0.01em;
}
.login-card label {
  display: block;
  font-size: 11px;
  color: var(--on-surface-variant);
  margin: 22px 0 6px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.login-card input {
  width: 100%;
  background: transparent !important;
  border: 0 !important;
  border-bottom: 2px solid var(--outline-variant) !important;
  border-radius: 0 !important;
  padding: 8px 0 !important;
  font-family: var(--font-mono);
  font-size: 13px;
  box-shadow: none !important;
  transition: border-color 0.25s var(--ease-quint);
}
.login-card input:focus {
  outline: none;
  border-bottom-color: var(--accent) !important;
}
.login-card .btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  width: 100%;
  margin-top: 24px;
  padding: 13px;
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 10px;
  background: var(--btn-accent-bg);
}
.login-card .btn::after {
  content: '→';
  color: var(--accent);
  font-weight: 400;
}
.login-card .err {
  font-size: 12px;
  color: var(--expense);
  margin-top: 10px;
  min-height: 16px;
}

.chip--lock {
  background: transparent;
  color: var(--accent-dark);
  border: 1px solid var(--accent-fade);
}

/* === PeakMind 問卷 form patterns（從 /PeakMind/about.html 移植） ===
   - .input-line: 底線 input（非 box），focus 時底線變金色
   - .form-label: xs uppercase tracking-wider 標籤
   - .section-kicker: 兩側金色橫線 + 中間大寫小標
   - .btn--cta: navy bg + 金色 icon 右側，跟網站 .cta-btn 同構 */

.input-line {
  background: transparent;
  border: 0 !important;
  border-bottom: 2px solid var(--outline-variant) !important;
  border-radius: 0 !important;
  padding: 10px 4px !important;
  font-size: 14px;
  color: var(--on-surface);
  transition: border-color 0.3s var(--ease-quint), background-color 0.3s;
  box-shadow: none !important;
}
.input-line:focus {
  outline: none;
  border-bottom-color: var(--accent) !important;
  background-color: var(--surface-container-lowest);
}
.input-line::placeholder { color: var(--on-surface-muted); opacity: 0.7; }

.form-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--on-surface-variant);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.brand-erp { color: var(--accent); }

.btn--cta {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--accent);
  color: var(--primary-deep);
  border: 1px solid var(--accent);
  border-radius: 10px;
  font-family: var(--font-headline);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background var(--t-fast), transform 0.1s;
  width: 100%;
}
.btn--cta:hover { background: var(--accent-light); border-color: var(--accent-light); transform: translateY(-1px); box-shadow: var(--glow-accent); }
.btn--cta:active { transform: scale(0.985); }
.btn--cta .icon {
  color: var(--accent);
  font-size: 16px;
  line-height: 1;
}

/* === Data list (used in dashboard) === */
.data-list { display: flex; flex-direction: column; }
.data-list .row {
  display: grid; grid-template-columns: 1fr auto;
  padding: 10px 0;
  border-bottom: 1px solid var(--outline-subtle);
  align-items: baseline;
  gap: 12px;
}
.data-list .row:last-child { border-bottom: none; }
.data-list .row .k { color: var(--on-surface-variant); font-size: 13px; }
.data-list .row .v {
  font-family: var(--font-headline);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--on-surface);
}