* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }
html { scroll-behavior: smooth; scrollbar-gutter: stable; }

body {
  font-family: var(--font-body);
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Ambient backdrop — porcelain: faint warm wash; obsidian: drifting silk orbs */
.bg-aurora { position: fixed; inset: -20% -10%; z-index: -1; pointer-events: none; }
:root .bg-aurora, [data-theme="porcelain"] .bg-aurora {
  background:
    radial-gradient(55% 45% at 20% 0%, rgba(14, 42, 71, 0.05), transparent 65%),
    radial-gradient(45% 40% at 85% 8%, rgba(0, 163, 199, 0.05), transparent 60%);
}
[data-theme="obsidian"] .bg-aurora {
  background:
    radial-gradient(40% 36% at 78% 4%, rgba(125, 211, 252, 0.1), transparent 70%),
    radial-gradient(36% 32% at 18% 12%, rgba(167, 139, 250, 0.08), transparent 70%),
    radial-gradient(55% 50% at 50% 110%, rgba(125, 211, 252, 0.04), transparent 65%);
  animation: orbDrift 16s ease-in-out infinite alternate;
}
@keyframes orbDrift { to { transform: translate(2%, 1.5%) scale(1.03); } }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; letter-spacing: -0.015em; }

a { color: var(--accent-data); text-decoration: none; }
a:hover { text-decoration: underline; }

.mono { font-family: var(--font-mono); }
.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); }
.sec { color: var(--text-secondary); }

/* Editorial accent word — Porcelain: ink italic serif; Obsidian: silk sheen */
.editorial { font-family: var(--font-editorial); font-style: italic; font-weight: 500; }
[data-theme="obsidian"] .editorial.sheen {
  background: linear-gradient(110deg, var(--text-primary) 35%, #7DD3FC 45%, #A78BFA 50%, #F0ABFC 55%, var(--text-primary) 65%);
  background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: sheen 5.5s linear infinite;
}
@keyframes sheen { 0% { background-position: 200% center; } 100% { background-position: -200% center; } }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-page); }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--hairline-strong); }
::selection { background: color-mix(in srgb, var(--accent-color) 25%, transparent); }

/* ---------------------------------------------------------------- header */
.app-header {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 8px 28px; /* tight padding keeps the bar at 63px with the 46px logo */
  border-bottom: 1px solid var(--hairline);
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: sticky; top: 0; z-index: 50;
}
.brand { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.brand img { height: 46px; transition: var(--transition-fast); }
[data-theme="porcelain"] .brand img, :root:not([data-theme="obsidian"]) .brand img {
  filter: brightness(0) saturate(100%) invert(13%) sepia(24%) saturate(1600%) hue-rotate(185deg) brightness(95%);
}
.brand:hover img { transform: translateY(-1px); }
.brand-nav {
  display: flex; gap: 4px;
  background: var(--surface-2); border: 1px solid var(--hairline);
  border-radius: var(--radius-pill); padding: 4px;
  /* Pin to the true center of the bar: with space-between flex the middle
     group drifts as the side groups change width (sign-in vs signed-in). */
  position: absolute; left: 50%; transform: translateX(-50%);
}
.nav-tab {
  background: none; border: none; color: var(--text-muted);
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 600;
  padding: 8px 16px; border-radius: var(--radius-pill); cursor: pointer;
  transition: var(--transition-fast); position: relative;
}
.nav-tab:hover { color: var(--text-primary); }
.nav-tab.active { color: var(--text-primary); background: var(--surface-1); box-shadow: var(--shadow-card); }
[data-theme="obsidian"] .nav-tab.active { background: rgba(255, 255, 255, 0.1); box-shadow: none; }
.header-actions { display: flex; align-items: center; gap: 10px; }
/* Demo-faithful Sign-in pill: porcelain = solid ink, obsidian = solid white.
   Targets only the signed-out button (direct child); signed-in ghosts sit in a wrapper. */
.header-actions > .btn {
  background: var(--accent-color); color: var(--on-accent); border-color: transparent;
}
[data-theme="obsidian"] .header-actions > .btn { background: #F4F4F6; color: #0B0B0D; }
.header-actions > .btn:hover { box-shadow: var(--glow-accent-soft); }

/* theme toggle */
.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--hairline-strong); background: var(--surface-1);
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
  font-size: 1rem; transition: var(--transition-fast); color: var(--text-secondary);
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--hairline-accent); transform: rotate(15deg) scale(1.06); }
.theme-toggle svg { width: 18px; height: 18px; display: block; }

/* Burger (mobile only) */
.nav-burger {
  display: none; flex-direction: column; gap: 5px; background: none; border: none;
  padding: 8px; cursor: pointer; position: relative; z-index: 5; flex-shrink: 0;
}
.nav-burger span { width: 22px; height: 2px; background: var(--text-secondary); border-radius: 2px; transition: var(--transition-fast); }
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none; flex-direction: column; gap: 2px;
  position: sticky; top: 52px; z-index: 49;
  background: var(--header-bg); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hairline);
  padding: 8px 16px 12px;
}
.mobile-nav.open { display: flex; }
.mobile-nav .nav-tab { text-align: left; font-size: 1rem; padding: 12px 14px; }

main.workspace { max-width: var(--maxw); margin: 0 auto; padding: 28px 24px 80px; }

/* ---------------------------------------------------------------- buttons */
.btn {
  font-family: var(--font-body); font-size: 0.88rem; font-weight: 600;
  padding: 10px 20px; border-radius: var(--radius-pill); cursor: pointer;
  border: 1px solid var(--hairline-strong); background: var(--surface-1);
  color: var(--text-primary); transition: var(--transition-fast);
  display: inline-flex; align-items: center; gap: 8px; min-height: 40px;
}
.btn:hover { border-color: var(--hairline-accent); transform: translateY(-1px); box-shadow: var(--glow-accent-soft); }
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--accent-grad); color: var(--on-accent); border: none;
  box-shadow: var(--glow-accent-soft);
}
.btn-primary:hover { box-shadow: var(--glow-accent); transform: translateY(-1px); }
.btn-ghost { background: none; border-color: transparent; }
.btn-ghost:hover { background: var(--surface-2); box-shadow: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------------------------------------------------------------- cards */
.card {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg); padding: 20px;
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}
[data-theme="obsidian"] .card {
  background: rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.card.hoverable:hover, .tracker-card:hover {
  border-color: var(--hairline-accent); transform: translateY(-2px); box-shadow: var(--elev-2);
}

/* ---------------------------------------------------------------- inputs */
input, select {
  font-family: var(--font-body); font-size: 0.95rem;
  background: var(--surface-2); border: 1px solid var(--hairline-strong);
  color: var(--text-primary); border-radius: var(--radius-sm); padding: 11px 13px;
  transition: var(--transition-fast); min-height: 42px;
}
input:focus, select:focus {
  outline: none; border-color: var(--accent-color);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-color) 18%, transparent);
}
label { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; letter-spacing: 0.02em; }

/* ---------------------------------------------------------------- verdicts */
.verdict-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.72rem; font-weight: 700; padding: 4px 11px; border-radius: var(--radius-pill);
  text-transform: uppercase; letter-spacing: 0.05em;
  border: 1px solid transparent;
}
.verdict-strong   { background: color-mix(in srgb, var(--verdict-strong) 13%, transparent);   color: var(--verdict-strong);   border-color: color-mix(in srgb, var(--verdict-strong) 35%, transparent); }
.verdict-favorable{ background: color-mix(in srgb, var(--verdict-favorable) 13%, transparent); color: var(--verdict-favorable); border-color: color-mix(in srgb, var(--verdict-favorable) 35%, transparent); }
.verdict-contested{ background: color-mix(in srgb, var(--verdict-contested) 13%, transparent); color: var(--verdict-contested); border-color: color-mix(in srgb, var(--verdict-contested) 35%, transparent); }
.verdict-longshot { background: color-mix(in srgb, var(--verdict-longshot) 13%, transparent);  color: var(--verdict-longshot);  border-color: color-mix(in srgb, var(--verdict-longshot) 35%, transparent); }

.band { position: relative; height: 6px; background: var(--surface-3); border-radius: 3px; overflow: visible; }
.band-fill { position: absolute; height: 6px; border-radius: 3px; transform-origin: left center; animation: bandIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) both; }
.band-tick { position: absolute; top: -3px; width: 2px; height: 12px; background: var(--text-primary); border-radius: 1px; }
@keyframes bandIn { from { transform: scaleX(0); } }

.pill {
  font-family: var(--font-mono); font-size: 0.72rem; padding: 3px 9px;
  border-radius: var(--radius-pill); background: var(--surface-2); color: var(--text-secondary);
}

/* ---------------------------------------------------------------- states */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state .icon { font-size: 2.4rem; opacity: 0.5; margin-bottom: 12px; }
.spinner {
  width: 36px; height: 36px; border: 2px solid var(--surface-3);
  border-top-color: var(--accent-color); border-radius: 50%;
  animation: spin 0.8s linear infinite; margin: 40px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

.view-enter { animation: viewIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) both; }
@keyframes viewIn { from { opacity: 0; transform: translateY(14px); } }

/* ---------------------------------------------------------------- toast */
#toast-host { position: fixed; bottom: 24px; right: 24px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--surface-1); border: 1px solid var(--hairline-strong);
  border-left: 3px solid var(--accent-color); border-radius: var(--radius-sm);
  padding: 12px 16px; font-size: 0.85rem; max-width: 320px;
  animation: slideup var(--transition); box-shadow: var(--elev-2);
}
.toast.error { border-left-color: var(--color-red); }
.toast.success { border-left-color: var(--color-green); }
@keyframes slideup { from { transform: translateY(12px); opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* ---------------------------------------------------------------- mobile */
/* Portrait phones (≤820px) AND landscape phones (wider than 820px but short),
   where the absolutely-centered nav pill would otherwise overlap the logo.
   The height guard keeps this off real desktops and small desktop windows. */
@media (max-width: 820px),
       (max-width: 960px) and (orientation: landscape) and (max-height: 520px) {
  .brand-nav { display: none; }
  .nav-burger { display: flex; }
  .app-header { padding: 10px 14px; gap: 8px; }
  .brand { flex-shrink: 0; }
  .brand img { height: 31px; }
  .header-actions { margin-left: auto; min-width: 0; overflow: hidden; }
  .header-actions .btn { padding: 8px 14px; font-size: 0.8rem; min-height: 36px; white-space: nowrap; }
  .theme-toggle { width: 36px; height: 36px; }
  main.workspace { padding: 18px 14px 70px; }
  #toast-host { left: 16px; right: 16px; bottom: 16px; }
  .toast { max-width: none; }
}