/* ─── YYAI RESEARCH PORTAL — SHARED STYLESHEET ─── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500&family=Source+Serif+4:ital,opsz,wght@0,8..60,300;0,8..60,400;0,8..60,600;1,8..60,300&display=swap');

:root {
  --navy:   #0F1E35;
  --navy2:  #162840;
  --gold:   #C9A84C;
  --gold2:  #E8C96A;
  --cream:  #F7F3EC;
  --offwhite:#FDFAF5;
  --gray1:  #E8E3DA;
  --gray2:  #C8C0B0;
  --gray3:  #8C8070;
  --red:    #8B2020;
  --green:  #1A5C35;
  --text:   #1A1208;
  --serif:  'Source Serif 4', Georgia, serif;
  --display:'Playfair Display', Georgia, serif;
  --mono:   'IBM Plex Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--offwhite);
  color: var(--text);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.75;
  min-height: 100vh;
}

/* ── HEADER ── */
header {
  background: var(--navy);
  border-bottom: 3px solid var(--gold);
  position: sticky; top: 0; z-index: 100;
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.logo {
  font-family: var(--display);
  font-size: 18px;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.logo span { color: rgba(201,168,76,0.55); font-weight: 400; font-style: italic; }

nav { display: flex; align-items: center; gap: 0; overflow-x: auto; }
nav a {
  color: rgba(255,255,255,0.72);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0 10px;
  height: 56px;
  display: flex;
  align-items: center;
  border-bottom: 3px solid transparent;
  transition: color .2s, border-color .2s;
  white-space: nowrap;
}
nav a:hover { color: #fff; border-bottom-color: var(--gold); }
nav a.active { color: var(--gold2); border-bottom-color: var(--gold2); }

/* ── HERO BAND (pages without full hero) ── */
.page-hero {
  background: var(--navy2);
  padding: 48px 24px 40px;
  border-bottom: 1px solid rgba(201,168,76,0.25);
}
.page-hero-inner { max-width: 1080px; margin: 0 auto; }
.page-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.page-title {
  font-family: var(--display);
  font-size: clamp(28px, 4vw, 44px);
  color: #fff;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}
.page-subtitle {
  color: rgba(255,255,255,0.6);
  font-size: 16px;
  font-style: italic;
}

/* ── LAYOUT ── */
.container { max-width: 1080px; margin: 0 auto; padding: 56px 24px 80px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
@media (max-width: 800px) { .two-col, .three-col { grid-template-columns: 1fr; } }

/* ── SECTIONS ── */
.section { margin-bottom: 64px; }
.section-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
h2.section-title {
  font-family: var(--display);
  font-size: clamp(22px, 3vw, 32px);
  color: var(--navy);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gold);
}
h3.sub-title {
  font-family: var(--display);
  font-size: 20px;
  color: var(--navy);
  margin: 32px 0 12px;
}

p { margin-bottom: 16px; }
p:last-child { margin-bottom: 0; }

/* ── CARDS ── */
.card {
  background: #fff;
  border: 1px solid var(--gray1);
  border-top: 3px solid var(--gold);
  border-radius: 2px;
  padding: 28px;
}
.card-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray3);
  margin-bottom: 6px;
}
.card-value {
  font-family: var(--display);
  font-size: 32px;
  color: var(--navy);
  font-weight: 700;
  line-height: 1.1;
}
.card-sub { font-size: 14px; color: var(--gray3); margin-top: 4px; font-style: italic; }

/* Scenario cards */
.card.bear  { border-top-color: var(--red); }
.card.base  { border-top-color: var(--gold); }
.card.bull  { border-top-color: var(--green); }
.card.bear  .card-value { color: var(--red); }
.card.base  .card-value { color: #7A5800; }
.card.bull  .card-value { color: var(--green); }

/* ── PULL QUOTE ── */
.pull-quote {
  border-left: 4px solid var(--gold);
  padding: 20px 28px;
  margin: 32px 0;
  background: rgba(201,168,76,0.06);
}
.pull-quote p {
  font-family: var(--display);
  font-size: 20px;
  color: var(--navy);
  font-style: italic;
  line-height: 1.5;
  margin: 0;
}

/* ── TABLES ── */
.table-wrap { overflow-x: auto; margin: 24px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
thead th {
  background: var(--navy);
  color: #fff;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 12px 16px;
  text-align: left;
  border: none;
}
tbody tr:nth-child(even) { background: var(--cream); }
tbody tr:hover { background: rgba(201,168,76,0.1); }
tbody td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--gray1);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-family: var(--mono); }
td.green { color: var(--green); font-weight: 600; }
td.red   { color: var(--red); }
td.gold  { color: #7A5800; font-weight: 600; }
td.bold  { font-weight: 700; background: rgba(15,30,53,0.05) !important; }

/* ── RATING BOX ── */
.rating-box {
  background: var(--navy);
  color: #fff;
  padding: 36px 40px;
  text-align: center;
  border-top: 4px solid var(--gold);
  margin: 48px 0 0;
}
.rating-box .rating-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.rating-box .rating-main {
  font-family: var(--display);
  font-size: 36px;
  font-weight: 700;
  color: var(--gold2);
  margin-bottom: 8px;
}
.rating-box .rating-targets {
  font-family: var(--mono);
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

/* ── HIGHLIGHT ── */
.highlight {
  background: rgba(201,168,76,0.12);
  border: 1px solid rgba(201,168,76,0.3);
  border-left: 4px solid var(--gold);
  padding: 20px 24px;
  margin: 24px 0;
  border-radius: 0 2px 2px 0;
}
.highlight strong { color: var(--navy); }

/* ── DISCLAIMER ── */
.disclaimer {
  font-size: 13px;
  color: var(--gray3);
  font-style: italic;
  border-top: 1px solid var(--gray1);
  padding-top: 24px;
  margin-top: 48px;
  line-height: 1.6;
}

/* ── FOOTER ── */
footer {
  background: var(--navy);
  border-top: 3px solid var(--gold);
  padding: 40px 24px;
  margin-top: auto;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy {
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.45);
}
.footer-x a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #000;
  color: #fff;
  text-decoration: none;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 20px;
  transition: background .2s;
}
.footer-x a:hover { background: #1a1a1a; }

/* ── MISC ── */
.mono { font-family: var(--mono); }
.upside { color: var(--green); font-weight: 600; font-family: var(--mono); }
strong { color: var(--navy); }
hr { border: none; border-top: 1px solid var(--gray1); margin: 40px 0; }