/* =============================================================
   卖期权机会扫描器 · 静态前端
   设计 token 完全沿用 mayimiao.com (~/Desktop/WORK2026/iMaYimiao.github.io/css/style.css)
   ============================================================= */

@font-face {
  font-family: "AlibabaPuHuiTi3";
  font-weight: 300;
  font-style: normal;
  font-display: swap;
  src: url("../fonts/AlibabaPuHuiTi-3-45-Light.woff2") format("woff2");
}
@font-face {
  font-family: "AlibabaPuHuiTi3";
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url("../fonts/AlibabaPuHuiTi-3-55-Regular.woff2") format("woff2");
}
@font-face {
  font-family: "AlibabaPuHuiTi3";
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  src: url("../fonts/AlibabaPuHuiTi-3-65-Medium.woff2") format("woff2");
}
@font-face {
  font-family: "Material Symbols Outlined";
  font-weight: 100 700;
  font-style: normal;
  font-display: block;
  src: url("../fonts/material-symbols-outlined.woff2") format("woff2");
}

:root {
  --bg: #FAFAF9;
  --bg-elevated: #F2EFE8;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FDFBF8;
  --border: #E6E1D8;
  --border-gold: rgba(232, 126, 40, 0.25);
  --gold: #E87E28;
  --gold-soft: #CC6018;
  --gold-dim: #F09848;
  --gold-glow: rgba(232, 126, 40, 0.09);
  --text: #0C0A09;
  --text-soft: #3A3632;
  --text-dim: #6A6460;
  --text-faint: #9A9490;
  --good: #1e7a4d;
  --good-glow: rgba(34, 139, 87, 0.12);
  --warn: #b84a2a;
  --warn-glow: rgba(232, 126, 40, 0.12);
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1280px;
  --font-display: "Cormorant Garamond",
                  "AlibabaPuHuiTi3", "PingFang SC", "Hiragino Sans GB",
                  "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans: "AlibabaPuHuiTi3", "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", -apple-system, BlinkMacSystemFont,
               "Helvetica Neue", Arial, sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-feature-settings: "kern", "liga";
  font-variant-numeric: tabular-nums;
}
a { color: var(--gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold-soft); }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ===== Top nav ===== */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(250, 250, 249, 0.85);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  display: flex; align-items: baseline; gap: 10px;
  color: var(--text);
  font-weight: 500;
}
.nav-brand:hover { color: var(--gold); }
.brand-text { font-size: 15px; }
.brand-divider { color: var(--text-faint); font-size: 14px; }
.brand-tool {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}
.nav-right { display: flex; align-items: center; gap: 12px; }
.user-email { font-size: 13px; color: var(--text-dim); }

/* ===== Container ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* ===== Page header ===== */
.page-header {
  margin-bottom: 24px;
}
.header-row {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
  margin-bottom: 12px;
}
.page-title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.7rem;
  letter-spacing: -0.005em;
  color: var(--text);
}
.page-subtitle {
  margin-top: 6px;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  font-weight: 400;
}
.header-actions { display: flex; gap: 10px; }

.header-meta {
  display: flex; align-items: center; gap: 16px;
  font-size: 13px;
  color: var(--text-dim);
  flex-wrap: wrap;
}
.data-source::before { content: "⚡"; margin-right: 6px; opacity: 0.7; }
.freshness {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 8px;
  background: var(--bg-elevated);
  font-size: 12px;
}
.freshness::before { content: "📅"; }
.freshness.warn { background: var(--warn-glow); color: var(--gold-soft); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px;
  font-size: 14px; font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-soft);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:hover {
  border-color: var(--gold);
  color: var(--gold-soft);
  background: var(--gold-glow);
}
.btn-primary {
  background: var(--gold);
  border-color: var(--gold);
  color: #fff;
}
.btn-primary:hover {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(232, 126, 40, 0.28);
}
.btn-ghost { background: transparent; }
.btn-sm { padding: 6px 14px; font-size: 13px; }

/* ===== Strategy selector ===== */
.strategy-selector {
  display: flex; gap: 4px;
  padding: 4px;
  background: var(--bg-elevated);
  border-radius: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
  width: fit-content;
}
.strategy-btn {
  padding: 8px 18px;
  font-size: 14px; font-weight: 400;
  border-radius: 9px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  transition: all var(--transition);
}
.strategy-btn:hover { color: var(--text); }
.strategy-btn.active {
  background: var(--gold);
  color: #fff;
  font-weight: 500;
}
.strategy-subtitle {
  font-size: 13px; color: var(--text-dim);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

/* ===== Disclaimer ===== */
.disclaimer {
  padding: 12px 16px;
  background: rgba(232, 126, 40, 0.06);
  border: 1px solid var(--border-gold);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 20px;
  line-height: 1.7;
}
.disclaimer strong { color: var(--gold-soft); font-weight: 500; }

/* ===== DTE chips ===== */
.dte-chips {
  display: flex; align-items: center; gap: 6px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.chips-label {
  font-size: 12px; color: var(--text-dim);
  letter-spacing: 0.06em;
  margin-right: 8px;
}
.chip {
  padding: 6px 14px;
  font-size: 12px; font-weight: 500;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-dim);
  letter-spacing: 0.04em;
  transition: all var(--transition);
}
.chip:hover {
  border-color: var(--border-gold);
  color: var(--gold-soft);
}
.chip.active {
  background: var(--gold-glow);
  border-color: var(--border-gold);
  color: var(--gold-soft);
}

/* ===== Layout (sidebar + content) ===== */
.layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
}

/* ===== Sidebar ===== */
.sidebar {
  display: flex; flex-direction: column; gap: 24px;
  position: sticky;
  top: 80px;
  max-height: calc(100vh - 96px);
  overflow-y: auto;
}
.filter-group h3 {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-soft);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.filter { margin-bottom: 16px; }
.filter-label {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 12px; color: var(--text-dim);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.filter-value {
  color: var(--gold-soft);
  font-weight: 500;
  font-size: 13px;
}
.filter input[type="range"] {
  width: 100%;
  accent-color: var(--gold);
  cursor: pointer;
}
.filter select {
  width: 100%;
  padding: 8px 10px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
}
.filter select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}

/* ===== Search ===== */
.search-wrapper { position: relative; }
.search-wrapper input {
  width: 100%;
  padding: 8px 12px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
}
.search-wrapper input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}
.search-results {
  position: absolute; top: calc(100% + 4px); left: 0; right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  max-height: 280px; overflow-y: auto;
  z-index: 50;
}
.search-result-item {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--gold-glow); }
.search-result-item .ticker { font-weight: 500; color: var(--text); margin-right: 6px; }
.search-result-item .name { color: var(--text-dim); font-size: 12px; }

.watchlist { margin-top: 12px; }
.watchlist-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 10px; margin-bottom: 4px;
  border-radius: 6px;
  font-size: 13px;
  transition: background var(--transition);
}
.watchlist-item:hover { background: var(--bg-elevated); }
.watchlist-item .ticker { color: var(--text); font-weight: 500; }
.watchlist-item .remove {
  border: none; background: transparent;
  color: var(--text-faint); cursor: pointer;
  width: 20px; height: 20px; padding: 0;
  border-radius: 4px;
  transition: all var(--transition);
}
.watchlist-item .remove:hover { background: var(--warn-glow); color: var(--warn); }
.caption { font-size: 12px; color: var(--text-faint); }

/* ===== Content ===== */
.content { min-width: 0; }

/* ===== Pool tabs ===== */
.pool-tabs {
  display: flex; gap: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.pool-tab {
  padding: 10px 0;
  font-size: 14px; font-weight: 400;
  border: none; background: transparent;
  color: var(--text-dim);
  position: relative;
  transition: color var(--transition);
}
.pool-tab:hover { color: var(--text); }
.pool-tab.active { color: var(--gold-soft); font-weight: 500; }
.pool-tab.active::after {
  content: ''; position: absolute; bottom: -1px; left: 0; right: 0;
  height: 2px; background: var(--gold);
}

.results-heading {
  font-size: 1rem; font-weight: 500;
  color: var(--text-soft); letter-spacing: 0.02em;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.results-heading span { color: var(--gold); font-weight: 600; }

.loading {
  padding: 40px 0; text-align: center;
  color: var(--text-dim); font-size: 14px;
}
.empty {
  padding: 40px 16px; text-align: center;
  color: var(--text-dim); font-size: 14px;
  background: var(--bg-elevated); border-radius: 10px;
}

/* ===== CARDS ===== */
.cards {
  display: flex; flex-direction: column; gap: 14px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  position: relative;
  transition: all var(--transition);
  /* card-refresh 在桌面端是 inline，在 mobile 用 absolute 定位 */
}
.card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.card:hover {
  border-color: var(--border-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.card:hover::before { opacity: 1; }

/* Card head */
.card-head {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.ticker-block {
  display: flex; align-items: baseline; gap: 10px;
  flex: 1 1 240px;
}
.ticker-name {
  font-size: 1.4rem; font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--text);
}
.ticker-spot {
  font-size: 1.15rem; font-weight: 500;
  color: var(--gold-soft);
  font-variant-numeric: tabular-nums;
}
.ticker-spot-label {
  font-size: 11px; color: var(--text-faint);
  letter-spacing: 0.04em;
}

.dte-block { display: flex; align-items: center; gap: 10px; }
.dte-chip {
  padding: 4px 12px; border-radius: 999px;
  background: var(--gold-glow);
  color: var(--gold-soft);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.04em;
}
.dte-detail { font-size: 12px; color: var(--text-dim); }

.card-refresh {
  border: 1px solid var(--border);
  background: var(--bg-card);
  width: 32px; height: 32px;
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.card-refresh:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: var(--gold-glow);
  transform: rotate(90deg);
}

/* Strategy line */
.strategy-line {
  font-size: 14px;
  color: var(--text-soft);
  margin-bottom: 14px;
  line-height: 1.6;
}
.strategy-line b { color: var(--text); font-weight: 500; }
.strategy-spread-detail {
  font-size: 12px; color: var(--text-dim);
  margin-top: -10px; margin-bottom: 14px;
}

/* Metrics grid (4 big numbers) */
.metrics-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}
@media (max-width: 700px) { .metrics-grid { grid-template-columns: repeat(2, 1fr); } }

.metric {
  background: var(--bg-elevated);
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: all var(--transition);
}
.metric:hover { border-color: var(--border-gold); background: #F7F2EA; }
.metric-label {
  display: block;
  font-size: 11px; font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.metric-value {
  display: block;
  font-size: 1.85rem; font-weight: 500;
  color: var(--gold-soft);
  letter-spacing: -0.005em;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

/* Secondary 3-col */
.sec-row {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 14px;
  background: var(--bg-elevated);
  border-radius: 12px;
  margin-bottom: 12px;
}
@media (max-width: 700px) { .sec-row { grid-template-columns: 1fr; } }

.sec-cell { display: flex; flex-direction: column; gap: 4px; }
.sec-label {
  font-size: 11px; font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.04em;
}
.sec-value {
  font-size: 1rem; font-weight: 500;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.sec-hint {
  font-size: 12px; color: var(--text-dim);
  display: flex; align-items: center; gap: 6px;
}

/* Discount pill */
.discount-pill {
  display: inline-block;
  padding: 3px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 500;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.discount-pill.good { background: var(--good-glow); color: var(--good); }
.discount-pill.bad  { background: var(--warn-glow); color: var(--gold-soft); }

/* Card details */
.card-details {
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 4px;
}
.card-details summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  list-style: none;
  display: flex; align-items: center; gap: 6px;
  padding: 4px 0;
  user-select: none;
}
.card-details summary::-webkit-details-marker { display: none; }
.card-details summary::before {
  content: '▸';
  font-size: 10px;
  color: var(--text-faint);
  transition: transform var(--transition);
}
.card-details[open] summary::before { transform: rotate(90deg); }
.card-details summary:hover { color: var(--text-soft); }
.details-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  column-gap: 28px; row-gap: 6px;
  margin-top: 10px;
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}
@media (max-width: 600px) { .details-grid { grid-template-columns: 1fr; } }
.detail-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 2px 0;
}
.detail-label {
  color: var(--text-dim);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
}
.detail-value {
  color: var(--text-soft);
}

/* =================================================================
   Mobile responsive overrides (≤ 640px = phone)
   ================================================================= */
@media (max-width: 640px) {
  /* ---- Container padding ---- */
  .container { padding: 16px 14px 64px; }

  /* ---- Top nav: hide user email, keep brand + logout compact ---- */
  .nav-inner { padding: 10px 14px; }
  .brand-divider, .brand-tool { display: none; }    /* 只剩"马一喵" */
  .user-email { display: none !important; }

  /* ---- Page header: stack vertically ---- */
  .header-row {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .page-title { font-size: 1.4rem; }
  .page-subtitle { font-size: 12px; }
  .header-actions { width: 100%; }
  .header-actions .btn { flex: 1; padding: 10px 12px; }

  .header-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    font-size: 12px;
  }

  /* ---- Strategy selector: horizontal scroll instead of wrapping ---- */
  .strategy-selector {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding: 4px;
  }
  .strategy-selector::-webkit-scrollbar { display: none; }
  .strategy-btn {
    flex-shrink: 0;
    padding: 8px 14px;
    font-size: 13px;
  }
  .strategy-subtitle { font-size: 12px; }

  /* ---- DTE chips: smaller, allow wrap ---- */
  .dte-chips { gap: 5px 4px; }
  .chips-label { display: none; }   /* 节省空间，chip 自身有标签 */
  .chip { padding: 5px 10px; font-size: 11px; }

  /* ---- Layout: sidebar already stacks on top via 900px rule ---- */
  .layout { gap: 16px; }
  .sidebar {
    position: static;
    max-height: none;
    overflow-y: visible;
    /* On mobile sidebar is a folded section above content */
    background: var(--bg-elevated);
    padding: 14px;
    border-radius: var(--radius);
  }

  /* ---- Pool tabs: smaller font, tighter ---- */
  .pool-tabs { gap: 16px; overflow-x: auto; flex-wrap: nowrap; }
  .pool-tab { font-size: 13px; flex-shrink: 0; }

  .results-heading { font-size: 0.9rem; }

  /* ---- Card: tighter padding ---- */
  .card { padding: 16px 16px; border-radius: 14px; }

  /* ---- Card head: stack ticker / dte / refresh in 2 rows ---- */
  .card-head {
    gap: 8px 12px;
  }
  .ticker-block {
    flex: 1 1 100%;     /* full row */
    gap: 8px;
  }
  .ticker-name { font-size: 1.25rem; }
  .ticker-spot { font-size: 1rem; }
  .ticker-spot-label { font-size: 10px; }
  .dte-block {
    width: 100%;
    justify-content: flex-start;
    gap: 8px;
  }
  .dte-detail { font-size: 11px; }
  .dte-chip { font-size: 10px; padding: 3px 10px; }
  .card-refresh {
    position: absolute;
    top: 12px; right: 12px;
    width: 28px; height: 28px;
    font-size: 13px;
  }

  /* ---- Strategy line ---- */
  .strategy-line { font-size: 13px; line-height: 1.5; }

  /* ---- 4 metrics: 2x2 grid + smaller font ---- */
  .metrics-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .metric { padding: 10px 12px; }
  .metric-label { font-size: 10px; }
  .metric-value { font-size: 1.45rem; }

  /* ---- Secondary 3-col → stack ---- */
  .sec-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 12px;
  }
  .sec-cell { gap: 2px; }
  .sec-label { font-size: 10px; }
  .sec-value { font-size: 0.95rem; }
  .sec-hint { font-size: 11px; }

  /* ---- Discount pill ---- */
  .discount-pill { font-size: 11px; padding: 2px 8px; }

  /* ---- Card details: 1-col grid + smaller ---- */
  .details-grid { grid-template-columns: 1fr; row-gap: 4px; }
  .card-details summary { font-size: 11px; }
  .detail-label { font-size: 0.72rem; }
  .detail-value { font-size: 0.78rem; }

  /* ---- Footer ---- */
  .page-footer { font-size: 11px; margin-top: 32px; }
}

/* =================================================================
   Tablet adjustments (641-900px) — sidebar still on side but cards adjust
   ================================================================= */
@media (min-width: 641px) and (max-width: 900px) {
  .strategy-selector { flex-wrap: wrap; }
}

/* ===== Footer ===== */
.page-footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.7;
  letter-spacing: 0.01em;
}
.footnote { margin-bottom: 8px; }
.footnote strong { color: var(--text-soft); font-weight: 500; }
.footnote-credit {
  margin-top: 16px;
  font-family: var(--font-display);
  font-style: italic;
  text-align: center;
  color: var(--text-faint);
}
.footnote-credit a { color: inherit; }
.footnote-credit a:hover { color: var(--gold); }