/* ============================================
   Altfolio — shared stylesheet
   Dark, premium, fintech-editorial aesthetic
   ============================================ */

:root {
  --bg: #0b0e13;
  --bg-elevated: #11151c;
  --bg-card: #151a22;
  --border: #232a35;
  --text: #e9edf3;
  --text-dim: #9aa5b3;
  --text-faint: #6b7686;
  --accent: #c9a24b;
  --accent-soft: #c9a24b22;
  --accent-hover: #ddb65e;
  --green: #4caf7d;
  --radius: 10px;
  --maxw: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 14, 19, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.logo .dot { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 0.92rem;
  color: var(--text-dim);
}
.nav-links a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 1rem;
}

@media (max-width: 760px) {
  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--border); }
  .nav-links a:last-child { border-bottom: none; }
  .nav-toggle { display: inline-block; }
}

/* ---------- Hero ---------- */

.hero {
  padding: 88px 24px 64px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, var(--accent-soft), transparent);
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-soft);
  background: var(--accent-soft);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.hero p.lead {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 auto 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #15120a;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 8px;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
}
.btn:hover { background: var(--accent-hover); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text);
  font-weight: 600;
  padding: 12px 25px;
  border-radius: 8px;
  font-size: 0.95rem;
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--text-faint); }

.btn-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Sections ---------- */

section { padding: 72px 24px; }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.section-head p {
  color: var(--text-dim);
  margin: 0;
}

/* ---------- Vertical cards grid (homepage) ---------- */

.verticals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.v-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color .15s, transform .15s;
}
.v-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.v-card .icon {
  font-size: 1.6rem;
  margin-bottom: 14px;
}
.v-card h3 {
  font-size: 1.05rem;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.v-card p {
  font-size: 0.92rem;
  color: var(--text-dim);
  margin: 0 0 14px;
}
.v-card .go {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

/* ---------- Tool / pick cards (vertical pages) ---------- */

.tool-list {
  display: grid;
  gap: 14px;
}

.tool-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  flex-wrap: wrap;
}

.tool-card .meta h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}
.tool-card .meta p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9rem;
  max-width: 520px;
}
.tool-card .tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--green);
  background: #4caf7d1a;
  border: 1px solid #4caf7d33;
  padding: 3px 9px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.placeholder-note {
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  color: var(--text-faint);
  font-size: 0.88rem;
  margin-bottom: 24px;
}

/* ---------- Disclosure banner (shown on vertical pages) ---------- */

.disclosure-strip {
  font-size: 0.82rem;
  color: var(--text-faint);
  text-align: center;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.disclosure-strip a { color: var(--text-dim); text-decoration: underline; }

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 64px 24px;
}
.cta-band h2 { margin: 0 0 12px; font-size: 1.7rem; }
.cta-band p { color: var(--text-dim); margin: 0 0 28px; }

/* ---------- Page header (vertical / static pages) ---------- */

.page-head {
  padding: 56px 24px 40px;
  border-bottom: 1px solid var(--border);
}
.page-head .eyebrow { margin-bottom: 16px; }
.page-head h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 14px;
  text-align: left;
  max-width: 100%;
}
.page-head p.lead {
  text-align: left;
  margin: 0;
  max-width: 640px;
}

.prose {
  max-width: 720px;
  color: var(--text-dim);
}
.prose h2 { color: var(--text); margin-top: 36px; }
.prose ul { padding-left: 20px; }
.prose li { margin-bottom: 8px; }

/* ---------- Footer ---------- */

footer.site {
  border-top: 1px solid var(--border);
  padding: 48px 24px 32px;
  color: var(--text-faint);
  font-size: 0.86rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-grid h4 {
  color: var(--text-dim);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 14px;
}
.footer-grid a {
  display: block;
  margin-bottom: 10px;
  color: var(--text-faint);
}
.footer-grid a:hover { color: var(--text-dim); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}