/* ============================================================================
   T-COMPANION · ISG AURUM — Financial Broadsheet design system
   Reference language: editorial financial media (serif headlines + tabular
   monospaced data), ticker tape, sparklines, dense data tables, strict
   up/down colour semantics, on a warm paper surface.
   Type: Newsreader (editorial serif) · IBM Plex Sans (UI) · IBM Plex Mono (data)
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,300;0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,300;1,6..72,400&family=IBM+Plex+Sans:wght@300;400;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* Surface — warm newsprint */
  --paper:        #f4f3ee;
  --paper-raised: #faf9f5;
  --paper-card:   #ffffff;
  --ink-block:    #16150f;   /* dark editorial sections (footer, terminal) */

  /* Ink */
  --ink:          #16150f;
  --ink-soft:     #55524a;
  --ink-faint:    #8d8980;
  --ink-invert:   #f4f3ee;

  /* Rules */
  --hairline:     rgba(22,21,15,0.12);
  --hairline-hi:  rgba(22,21,15,0.22);
  --hairline-inv: rgba(244,243,238,0.14);

  /* Brand — brass gold (Aurum) */
  --gold:         #9a7723;
  --gold-hi:      #b8902f;
  --gold-deep:    #6f5417;
  --gold-wash:    rgba(154,119,35,0.08);

  /* Market direction (muted, print-like) */
  --up:           #0a7d51;
  --up-wash:      rgba(10,125,81,0.10);
  --down:         #b23b32;
  --down-wash:    rgba(178,59,50,0.10);

  /* Type */
  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --sans:  'IBM Plex Sans', system-ui, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, monospace;

  --r:    8px;
  --r-lg: 14px;
  --tnum: "tnum" 1, "lnum" 1;   /* tabular lining figures */
  --shadow: 0 18px 50px -24px rgba(22,21,15,0.28);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* Faint newsprint texture + top brand keyline */
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.018'/%3E%3C/svg%3E");
}

.wrap { position: relative; z-index: 1; max-width: 1280px; margin: 0 auto; padding: 0 36px; }

/* ── Type scale ─────────────────────────────────────────────────────────── */
h1,h2,h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.018em; line-height: 1.04; color: var(--ink); }
.display { font-size: clamp(2.7rem, 6.4vw, 5.6rem); font-weight: 300; line-height: 0.98; letter-spacing: -0.03em; }
.display em { font-style: italic; font-weight: 400; }
.kicker {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.26em;
  text-transform: uppercase; color: var(--gold); font-weight: 600;
}
.standfirst { font-family: var(--serif); font-size: clamp(1.15rem,1.8vw,1.5rem); font-style: italic; font-weight: 300; color: var(--ink-soft); max-width: 54ch; line-height: 1.45; }
.lede { font-size: clamp(1.02rem,1.5vw,1.18rem); color: var(--ink-soft); font-weight: 300; max-width: 56ch; }
.dateline { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--ink-faint); text-transform: uppercase; }
.mono { font-family: var(--mono); font-feature-settings: var(--tnum); }
.num  { font-family: var(--mono); font-feature-settings: var(--tnum); }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.55em;
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em;
  text-transform: uppercase; text-decoration: none; cursor: pointer; font-weight: 500;
  padding: 0.9em 1.7em; border-radius: var(--r); border: 1px solid transparent;
  transition: all 0.32s cubic-bezier(0.2,0.8,0.2,1);
}
.btn-gold { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-gold:hover { background: var(--gold-deep); border-color: var(--gold-deep); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--hairline-hi); }
.btn-ghost:hover { border-color: var(--ink); background: rgba(22,21,15,0.03); }
.btn-block { width: 100%; justify-content: center; }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--paper-card); border: 1px solid var(--hairline);
  border-radius: var(--r-lg); padding: 30px;
  transition: border-color 0.35s, transform 0.35s, box-shadow 0.35s;
}
.card:hover { border-color: var(--hairline-hi); box-shadow: var(--shadow); }

/* ── Nav ────────────────────────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(1.2);
  background: rgba(244,243,238,0.82); border-bottom: 1px solid var(--hairline);
}
nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: baseline; gap: 0.55em; text-decoration: none; color: var(--ink); }
.brand .mark { font-family: var(--serif); font-size: 1.5rem; letter-spacing: -0.03em; font-weight: 500; }
.brand .mark b { color: var(--gold); font-weight: 600; }
.brand .tag { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.28em; color: var(--ink-faint); text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { color: var(--ink-soft); text-decoration: none; font-size: 0.88rem; font-weight: 400; transition: color 0.25s; }
.nav-links a:hover { color: var(--gold); }

/* ── Ticker tape (Bloomberg/Yahoo signature) ────────────────────────────── */
.ticker { border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); background: var(--paper-raised); overflow: hidden; white-space: nowrap; }
.ticker-track { display: inline-flex; align-items: center; animation: ticker 46s linear infinite; }
.ticker-track:hover { animation-play-state: paused; }
.ticker-item { display: inline-flex; align-items: baseline; gap: 9px; padding: 13px 26px; border-right: 1px solid var(--hairline); font-family: var(--mono); font-feature-settings: var(--tnum); }
.ticker-item .sym { font-weight: 600; font-size: 0.82rem; color: var(--ink); letter-spacing: 0.02em; }
.ticker-item .px { font-size: 0.82rem; color: var(--ink-soft); }
.ticker-item .chg { font-size: 0.76rem; font-weight: 500; }
.up { color: var(--up); }
.down { color: var(--down); }
.chg.up::before { content: '▲ '; font-size: 0.6em; }
.chg.down::before { content: '▼ '; font-size: 0.6em; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ── Market data table ──────────────────────────────────────────────────── */
.mkt { width: 100%; border-collapse: collapse; }
.mkt thead th {
  font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 500; text-align: right; padding: 0 0 14px; border-bottom: 1px solid var(--hairline-hi);
}
.mkt thead th:first-child, .mkt thead th.l { text-align: left; }
.mkt tbody td { padding: 16px 0; border-bottom: 1px solid var(--hairline); font-family: var(--mono); font-feature-settings: var(--tnum); font-size: 0.92rem; text-align: right; color: var(--ink); }
.mkt tbody td.l { text-align: left; }
.mkt tbody tr { transition: background 0.2s; }
.mkt tbody tr:hover { background: var(--gold-wash); }
.mkt .name { font-family: var(--sans); }
.mkt .name .full { display: block; font-size: 0.72rem; color: var(--ink-faint); margin-top: 2px; letter-spacing: 0.02em; }
.mkt .name . tk { font-weight: 500; }
.mkt .sym-tk { font-family: var(--mono); font-weight: 600; }

/* Change badge */
.badge { display: inline-flex; align-items: center; gap: 4px; font-family: var(--mono); font-feature-settings: var(--tnum); font-size: 0.74rem; font-weight: 500; padding: 3px 8px; border-radius: 5px; }
.badge.up { color: var(--up); background: var(--up-wash); }
.badge.down { color: var(--down); background: var(--down-wash); }

/* ── Tier pills ─────────────────────────────────────────────────────────── */
.pill { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase; padding: 0.32em 0.75em; border-radius: 5px; border: 1px solid var(--hairline-hi); font-weight: 500; }
.pill.premium { color: var(--gold-deep); border-color: var(--gold); background: var(--gold-wash); }
.pill.major   { color: #2c5d82; border-color: rgba(44,93,130,0.35); background: rgba(44,93,130,0.06); }
.pill.fx      { color: var(--ink-soft); }

/* ── Forms ──────────────────────────────────────────────────────────────── */
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 7px; font-weight: 500; }
.field input, .field select { width: 100%; background: var(--paper-raised); border: 1px solid var(--hairline-hi); border-radius: var(--r); padding: 13px 15px; color: var(--ink); font-family: var(--sans); font-size: 0.98rem; transition: border-color 0.25s; }
.field input:focus, .field select:focus { outline: none; border-color: var(--gold); background: var(--paper-card); }

/* ── Reveal ─────────────────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.8s cubic-bezier(0.2,0.8,0.2,1), transform 0.8s cubic-bezier(0.2,0.8,0.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* ── Footer (dark editorial block for contrast) ─────────────────────────── */
footer { background: var(--ink-block); color: var(--ink-invert); margin-top: 110px; padding: 72px 0 44px; position: relative; z-index: 1; }
footer .cols { display: grid; grid-template-columns: 1.7fr 1fr 1fr; gap: 48px; }
footer .brand .mark { color: var(--ink-invert); }
footer h4 { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold-hi); margin-bottom: 16px; font-weight: 500; }
footer a, footer p { color: rgba(244,243,238,0.66); text-decoration: none; font-size: 0.88rem; display: block; margin-bottom: 9px; }
footer a:hover { color: var(--gold-hi); }
.disclaimer { margin-top: 44px; padding-top: 26px; border-top: 1px solid var(--hairline-inv); font-size: 0.76rem; color: rgba(244,243,238,0.5); font-family: var(--serif); font-style: italic; line-height: 1.7; }
.disclaimer a { display: inline; color: var(--gold-hi); }

/* ── Toast ──────────────────────────────────────────────────────────────── */
.toast { position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(120%); background: var(--ink-block); color: var(--ink-invert); border: 1px solid var(--hairline-hi); border-radius: var(--r); padding: 13px 26px; font-family: var(--mono); font-size: 0.8rem; z-index: 100; transition: transform 0.45s cubic-bezier(0.2,0.8,0.2,1); box-shadow: var(--shadow); }
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.err { border-color: var(--down); color: #f0a59e; }
.toast.ok  { border-color: var(--gold); color: var(--gold-hi); }

@media (max-width: 860px) {
  .nav-links a:not(.btn) { display: none; }
  footer .cols { grid-template-columns: 1fr; gap: 32px; }
  .wrap { padding: 0 22px; }
}