/* ============================================================
   Thinking Capital — Brand Stylesheet v7
   Gold-led identity with a whisper of hedge fund blue.
   Typographic wordmark as primary brand signal.
   ============================================================ */

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg:            #050608;
  --bg2:           #08090d;
  --bg-panel:      rgba(255,255,255,0.032);
  --bg-panel-2:    rgba(255,255,255,0.022);

  /* Borders / dividers */
  --line:          rgba(255,255,255,0.09);
  --line-soft:     rgba(255,255,255,0.05);

  /* Text */
  --text:          #f3f4f6;
  --muted:         #a0a8b4;
  --faint:         rgba(255,255,255,0.36);

  /* Gold — primary brand signal */
  --gold:          #D7B266;
  --gold-deep:     #B88932;
  --gold-soft:     #E3C588;
  --gold-glow:     rgba(215,178,102,0.10);

  /* Blue — restrained secondary accent */
  --blue:          #4468D8;
  --blue-soft:     #6E8EF0;
  --blue-deep:     #2748A8;
  --blue-glow:     rgba(68,104,216,0.07);
  --blue-glow-mid: rgba(68,104,216,0.12);

  /* Neutral */
  --white:         #FFFFFF;
  --black:         #121417;
  --slate:         #66717F;
  --grey:          #A6AFB8;

  /* Layout */
  --max:           1160px;
  --r-card:        20px;
  --r-pill:        999px;

  /* Transitions */
  --ease:          cubic-bezier(0.22,1,0.36,1);
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(ellipse 60% 40% at 80% 0%,  var(--blue-glow),      transparent),
    radial-gradient(ellipse 50% 36% at 12% 0%,  var(--gold-glow),      transparent),
    radial-gradient(ellipse 80% 60% at 50% 100%,rgba(68,104,216,0.04), transparent),
    linear-gradient(180deg, var(--bg2) 0%, var(--bg) 100%);
  background-attachment: fixed;
  line-height: 1.55;
  min-height: 100dvh;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Utility ─────────────────────────────────────────────── */
.wrap {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

/* ── Header / Nav ─────────────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5,6,8,0.84);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(255,255,255,0.055);
  box-shadow: 0 1px 0 rgba(68,104,216,0.10);
}

.nav {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* ── Typographic wordmark ────────────────────────────────── */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0;
  min-width: 0;
  text-decoration: none;
}


.brand-wordmark {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

/* THINKING CAPITAL — flagstone mark, white for maximum punch */
.brand-name {
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

/* Tagline — sits quietly beneath, sentence case, muted */
.brand-sub {
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: 0.06em;
  text-transform: none;
  color: var(--muted);
  font-weight: 400;
  white-space: nowrap;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}
.nav-links a {
  transition: color 0.2s var(--ease);
  padding: 4px 0;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.25s var(--ease);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding: clamp(56px,8vw,96px) 0 clamp(64px,10vw,112px);
  position: relative;
  overflow: hidden;
}

/*
  Decorative arcs — explicit px dimensions, no aspect-ratio,
  for full cross-browser compat including Safari.
*/
.hero::before {
  content: "";
  pointer-events: none;
  position: absolute;
  right: -80px;
  top: -120px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  border: 1px solid rgba(68,104,216,0.09);
  box-shadow:
    0 0 100px 30px rgba(68,104,216,0.05),
    inset 0 0 100px 30px rgba(68,104,216,0.04);
}
.hero::after {
  content: "";
  pointer-events: none;
  position: absolute;
  right: 60px;
  top: 40px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  border: 1px solid rgba(68,104,216,0.05);
}

.hero-inner { position: relative; z-index: 1; }

/* Eyebrow — blue, no decorative dash */
.eyebrow {
  display: block;
  color: var(--blue-soft);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 22px;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(42px, 6.5vw, 78px);
  line-height: 0.95;
  letter-spacing: -0.05em;
  font-weight: 700;
  max-width: 13ch;
  color: var(--text);
}

/* Gold highlight on "AI era." */
h1 em {
  font-style: normal;
  color: var(--gold);
}

.lede {
  margin: 0;
  max-width: 54ch;
  color: var(--muted);
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.68;
}

.domain-note {
  margin-top: 20px;
  color: rgba(255,255,255,0.38);
  font-size: 12.5px;
  letter-spacing: 0.06em;
}

/* ── Buttons ─────────────────────────────────────────────── */
.actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: var(--r-pill);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: transform 0.22s var(--ease), background 0.22s var(--ease),
              box-shadow 0.22s var(--ease), border-color 0.22s var(--ease);
  cursor: pointer;
}
.button:hover { transform: translateY(-2px); }

.button.primary {
  background: var(--gold);
  color: #12100a;
  box-shadow: 0 4px 24px rgba(215,178,102,0.20);
}
.button.primary:hover {
  background: var(--gold-soft);
  box-shadow: 0 6px 32px rgba(215,178,102,0.28);
}

.button.secondary {
  border-color: rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  color: var(--text);
}
.button.secondary:hover {
  border-color: rgba(68,104,216,0.28);
  background: rgba(68,104,216,0.06);
}

/* ── Sections ─────────────────────────────────────────────── */
.section {
  padding: 0 0 clamp(64px,9vw,108px);
}

.section-head {
  max-width: 680px;
  margin-bottom: 40px;
}

/* Section kicker — gold, no decorative dash, clean */
.section-kicker {
  display: block;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 14px;
}

.section-head h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 3.6vw, 46px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  max-width: 58ch;
  line-height: 1.68;
}

/* Divider — pure blue, fading to transparent */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg,
    rgba(68,104,216,0.22) 0%,
    rgba(68,104,216,0.08) 55%,
    transparent 100%);
  margin-bottom: clamp(48px,7vw,88px);
  border: none;
}

/* ── Feature grid ─────────────────────────────────────────── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature {
  position: relative;
  padding: 32px 28px 30px 28px;
  border-radius: var(--r-card);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.feature:hover {
  border-color: rgba(68,104,216,0.18);
  box-shadow: 0 0 0 1px rgba(68,104,216,0.07), 0 14px 40px rgba(0,0,0,0.24);
}

/* Pure blue left-edge marker */
.feature::before {
  content: "";
  position: absolute;
  left: 0;
  top: 32px;
  width: 2px;
  height: 24px;
  border-radius: 999px;
  background: rgba(68,104,216,0.55);
}

.feature strong {
  display: block;
  margin-bottom: 12px;
  font-size: 17px;
  font-weight: 700;
  color: rgba(255,255,255,0.96);
  letter-spacing: -0.01em;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.65;
}

/* ── Contact reassurance items ───────────────────────────── */
.contact-reassurance {
  margin-top: 32px;
  margin-bottom: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 40px;
}

.reassurance-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.4;
}

.reassurance-item::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  flex: 0 0 auto;
  opacity: 0.75;
}

/* ── Footer ─────────────────────────────────────────────── */
footer {
  padding: 8px 0 48px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.01em;
}

.footer-top {
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px 28px;
}

footer strong {
  color: rgba(255,255,255,0.88);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 10.5px;
  color: var(--gold);
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 1100px) {
  .wrap { width: min(var(--max), calc(100% - 40px)); }
}

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .hero::before, .hero::after { display: none; }
}

@media (max-width: 680px) {
  .nav { min-height: auto; padding: 16px 0; flex-wrap: wrap; gap: 14px; }
  .nav-links { gap: 20px; font-size: 13px; }
  h1 { max-width: 100%; }
  .grid-3 { grid-template-columns: 1fr; }
  .contact-reassurance { flex-direction: column; gap: 10px; }
}

@media (max-width: 480px) {
  .wrap { width: min(var(--max), calc(100% - 28px)); }
  .actions { flex-direction: column; }
  .button { width: 100%; justify-content: center; }
  .feature { padding: 26px 22px 24px 22px; }
  .brand-name { letter-spacing: 0.16em; font-size: 12px; }
  h1 { font-size: clamp(38px, 11vw, 52px); }
}

/* 2K monitors */
@media (min-width: 1400px) {
  :root { --max: 1280px; }
  .hero { padding: 104px 0 124px; }
  h1 { font-size: clamp(72px, 5vw, 96px); }
  .lede { font-size: 20px; }
  .section-head h2 { font-size: clamp(40px, 3vw, 52px); }
  .grid-3 { gap: 22px; }
  .feature { padding: 36px 32px 34px 32px; }
  .feature strong { font-size: 18px; }
}

/* 4K / ultra-wide */
@media (min-width: 1920px) {
  :root { --max: 1440px; }
}