/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;

  --transition: 180ms ease;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Light mode */
  --bg:        #f6f7f9;
  --surface:   #ffffff;
  --surface2:  #f0f2f5;
  --border:    rgba(0,0,0,0.08);
  --border-strong: rgba(0,0,0,0.14);
  --text:      #0d0f12;
  --text-2:    #4a5060;
  --text-3:    #8b93a3;
  --accent:    #1a6ef5;
  --accent-bg: #ebf0fd;
  --up:        #15803d;
  --up-bg:     #dcfce7;
  --down:      #b91c1c;
  --down-bg:   #fee2e2;
  --shadow:    0 1px 3px rgba(0,0,0,0.07), 0 4px 16px rgba(0,0,0,0.05);
  --shadow-lg: 0 2px 8px rgba(0,0,0,0.08), 0 12px 40px rgba(0,0,0,0.07);
}

[data-theme="dark"] {
  --bg:        #0d0f12;
  --surface:   #161820;
  --surface2:  #1e2030;
  --border:    rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.13);
  --text:      #eef0f5;
  --text-2:    #8b93a8;
  --text-3:    #555e72;
  --accent:    #5a94f5;
  --accent-bg: #1a2240;
  --up:        #4ade80;
  --up-bg:     #052e14;
  --down:      #f87171;
  --down-bg:   #2c0a0a;
  --shadow:    0 1px 3px rgba(0,0,0,0.3), 0 4px 16px rgba(0,0,0,0.2);
  --shadow-lg: 0 2px 8px rgba(0,0,0,0.3), 0 12px 40px rgba(0,0,0,0.25);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  transition: background var(--transition), color var(--transition);
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.container { width: 100%; max-width: 760px; margin: 0 auto; padding: 0 1.25rem; }

/* ── Header ───────────────────────────────────────── */
.header {
  position: sticky; top: 0; z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px; gap: 1rem;
}

.header__brand { display: flex; align-items: center; gap: 10px; }

.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--accent); color: #fff;
  font-size: 11px; font-weight: 600; letter-spacing: 0.02em;
}

.brand-name { font-size: 15px; font-weight: 600; color: var(--text); }

.header__nav { display: flex; align-items: center; gap: 4px; }

.tab-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: var(--radius-sm);
  border: none; background: transparent;
  font-size: 13px; font-weight: 500; font-family: var(--font);
  color: var(--text-2); cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.tab-btn:hover { background: var(--surface2); color: var(--text); }
.tab-btn.active { background: var(--accent-bg); color: var(--accent); }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: transparent;
  color: var(--text-2); cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.theme-toggle:hover { background: var(--surface2); color: var(--text); }
[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }

/* ── Main ─────────────────────────────────────────── */
.main { flex: 1; padding: 2.5rem 1.25rem 3rem; }

/* ── Hero ─────────────────────────────────────────── */
.hero { text-align: center; margin-bottom: 2.5rem; }

.hero__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600; line-height: 1.2; letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.hero__accent { color: var(--accent); }

.hero__sub { font-size: 15px; color: var(--text-2); }

/* ── Panels ───────────────────────────────────────── */
.panels { position: relative; }
.panel { display: none; }
.panel.active { display: block; animation: fadeUp 0.2s ease; }

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

/* ── Search Form ──────────────────────────────────── */
.search-form { margin-bottom: 1.5rem; }

.search-wrap {
  display: flex; align-items: center; gap: 0;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent), var(--shadow);
}

.search-icon {
  flex-shrink: 0; margin-left: 14px; color: var(--text-3);
}

.search-input {
  flex: 1; padding: 14px 12px;
  border: none; outline: none; background: transparent;
  font-family: var(--mono); font-size: 14px; color: var(--text);
}
.search-input::placeholder { color: var(--text-3); font-family: var(--font); }

.search-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 18px; margin: 5px;
  border: none; border-radius: 10px;
  background: var(--accent); color: #fff;
  font-family: var(--font); font-size: 13px; font-weight: 500;
  cursor: pointer; white-space: nowrap;
  transition: opacity var(--transition), transform var(--transition);
}
.search-btn:hover { opacity: 0.9; }
.search-btn:active { transform: scale(0.97); }
.search-btn--wide { margin-top: 0.75rem; padding: 12px 22px; border-radius: var(--radius-md); }

.search-hint { font-size: 12px; color: var(--text-3); margin-top: 8px; padding-left: 4px; }

.textarea-wrap {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.textarea-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent), var(--shadow);
}

.query-input {
  width: 100%; padding: 14px 16px;
  border: none; outline: none; resize: vertical; background: transparent;
  font-family: var(--font); font-size: 14px; line-height: 1.6; color: var(--text);
}
.query-input::placeholder { color: var(--text-3); }

/* ── Quote Card ───────────────────────────────────── */
.quote-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.25s ease;
}

.quote-card--up  { border-top: 3px solid var(--up); }
.quote-card--down { border-top: 3px solid var(--down); }

.quote-card__header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 1rem;
}

.quote-ticker {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  color: var(--text-3); text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 2px;
}

.quote-company { font-size: 18px; font-weight: 600; line-height: 1.3; }

.quote-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 5px 10px; border-radius: 100px;
  font-size: 13px; font-weight: 500; font-family: var(--mono);
  flex-shrink: 0;
}
.badge--up   { background: var(--up-bg); color: var(--up); }
.badge--down { background: var(--down-bg); color: var(--down); }

.quote-price-row {
  display: flex; align-items: baseline; gap: 12px; margin-bottom: 1.25rem;
}

.quote-price {
  font-family: var(--mono); font-size: 2rem; font-weight: 500; letter-spacing: -0.02em;
}

.quote-change { font-family: var(--mono); font-size: 15px; font-weight: 500; }
.change--up   { color: var(--up); }
.change--down { color: var(--down); }
.text--up   { color: var(--up); }
.text--down { color: var(--down); }

.quote-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden;
  margin-bottom: 1rem;
}

.quote-cell {
  background: var(--surface2);
  padding: 10px 14px;
  display: flex; flex-direction: column; gap: 3px;
}

.quote-label { font-size: 11px; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.05em; }
.quote-value { font-family: var(--mono); font-size: 13px; font-weight: 500; }

.quote-timestamp { font-size: 11px; color: var(--text-3); text-align: right; }

/* ── Answer Card ──────────────────────────────────── */
.answer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.25s ease;
}

.answer-card__header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}

.answer-label {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--accent);
}

.answer-body {
  padding: 1.25rem 1.5rem;
  font-size: 14px; line-height: 1.75; color: var(--text-2);
  white-space: pre-wrap; word-break: break-word;
}

/* Markdown-ish styles */
.answer-body h1, .answer-body h2, .answer-body h3 {
  font-weight: 600; color: var(--text); margin: 1em 0 0.4em;
}
.answer-body p { margin-bottom: 0.75em; }
.answer-body ul, .answer-body ol { margin-left: 1.25rem; margin-bottom: 0.75em; }
.answer-body li { margin-bottom: 0.25em; }
.answer-body code {
  font-family: var(--mono); font-size: 0.875em;
  background: var(--surface2); padding: 1px 5px; border-radius: 4px;
}
.answer-body strong { color: var(--text); font-weight: 600; }

/* ── Toast ────────────────────────────────────────── */
.toast {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-radius: var(--radius-md);
  font-size: 14px; margin-top: 1.5rem;
  animation: fadeUp 0.2s ease;
}
.toast--error {
  background: var(--down-bg); color: var(--down);
  border: 1px solid color-mix(in srgb, var(--down) 30%, transparent);
}

/* ── Trending Chips ───────────────────────────────── */
.trending { margin-top: 2.5rem; }
.trending__label { font-size: 12px; color: var(--text-3); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.05em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  padding: 5px 12px; border-radius: 100px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  font-family: var(--mono); font-size: 12px; color: var(--text-2);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.chip:hover { background: var(--accent-bg); color: var(--accent); border-color: var(--accent); }

/* ── Footer ───────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 1rem 1.25rem;
  font-size: 12px; color: var(--text-3); text-align: center;
}
.footer__inner { display: flex; flex-direction: column; gap: 4px; align-items: center; }
.footer a { color: var(--text-2); text-decoration: none; }
.footer a:hover { color: var(--accent); }
.footer__disclaimer { font-size: 11px; opacity: 0.6; }

/* ── Loading spinner on submit ────────────────────── */
.btn-loading { position: relative; pointer-events: none; opacity: 0.75; }
.btn-loading svg { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 540px) {
  .header__brand .brand-name { display: none; }
  .tab-btn span { display: none; }
  .quote-price { font-size: 1.5rem; }
}