/* ==========================================================================
   ALEX GOLD — Dataholic landing page
   Design direction from source doc: editorial, personal, experimental,
   premium, bold, curious. Huge typography. Strong black/white contrast.
   ========================================================================== */

:root {
  --ag-black: #0a0a0a;
  --ag-black-soft: #141414;
  --ag-white: #f7f6f2;
  --ag-gold: #c9a227;
  --ag-gold-bright: #e0b93a;
  --ag-gray: #6b6b66;
  --ag-border: rgba(255, 255, 255, 0.12);
  --ag-border-dark: rgba(0, 0, 0, 0.12);
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--ag-white);
  color: var(--ag-black);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

.ag-gold { color: var(--ag-gold); }

/* ---------- NAV ---------- */
.ag-navbar {
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ag-border);
}

.ag-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--ag-white);
  text-decoration: none;
}

.ag-navbar .nav-link {
  color: rgba(247, 246, 242, 0.75);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.ag-navbar .nav-link:hover { color: var(--ag-gold-bright); }

/* ---------- BUTTONS ---------- */
.btn-ag-gold {
  background: var(--ag-gold);
  border: 1px solid var(--ag-gold);
  color: var(--ag-black);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 0.75rem 1.5rem;
  border-radius: 2px;
  transition: transform 0.15s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.btn-ag-gold:hover {
  background: var(--ag-gold-bright);
  color: var(--ag-black);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 162, 39, 0.35);
}

.btn-ag-outline {
  background: transparent;
  border: 1px solid rgba(247, 246, 242, 0.4);
  color: var(--ag-white);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  padding: 0.75rem 1.5rem;
  border-radius: 2px;
  transition: all 0.2s ease;
}
.btn-ag-outline:hover {
  border-color: var(--ag-white);
  color: var(--ag-black);
  background: var(--ag-white);
}

.btn-ag-dark {
  background: var(--ag-black);
  border: 1px solid var(--ag-black);
  color: var(--ag-white);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  padding: 0.75rem 1.5rem;
  border-radius: 2px;
  transition: transform 0.15s ease;
}
.btn-ag-dark:hover { transform: translateY(-2px); color: var(--ag-white); }

/* ---------- HERO ---------- */
.ag-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--ag-black);
  color: var(--ag-white);
  overflow: hidden;
  padding-top: 6rem;
  padding-bottom: 4rem;
}

.ag-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(247, 246, 242, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 246, 242, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 10%, transparent 75%);
  animation: ag-grid-pan 40s linear infinite;
}

@keyframes ag-grid-pan {
  from { background-position: 0 0, 0 0; }
  to { background-position: 96px 48px, 48px 96px; }
}

.ag-hero-content { position: relative; z-index: 2; }

.ag-hero-fade {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 30%;
  background: linear-gradient(to bottom, transparent, var(--ag-black));
  pointer-events: none;
}

.ag-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--ag-gold);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.ag-eyebrow-dark { color: var(--ag-gold); }

.ag-display {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 9vw, 7rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin-bottom: 1.75rem;
}

.ag-lead {
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  max-width: 680px;
  margin: 0 auto 1rem;
  color: var(--ag-white);
}

.ag-lead-sub {
  font-size: 1rem;
  color: rgba(247, 246, 242, 0.6);
  max-width: 560px;
  margin: 0 auto;
}

/* ---------- SECTIONS ---------- */
.ag-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.ag-h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

.ag-body-lg {
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  color: var(--ag-white);
  max-width: 700px;
  margin: 0 auto 1rem;
}

.ag-body-lg-light {
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  color: var(--ag-black);
  max-width: 700px;
  margin: 0 auto 1rem;
}

.ag-body-muted {
  color: rgba(247, 246, 242, 0.6);
  max-width: 700px;
  margin: 0 auto 1rem;
  line-height: 1.7;
}

.ag-body-muted-light {
  color: var(--ag-gray);
  max-width: 700px;
  margin: 0 auto 1rem;
  line-height: 1.7;
}

.ag-kicker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: rgba(247, 246, 242, 0.5);
}

.ag-kicker-dark {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--ag-gray);
}

/* ---------- THE LOOP ---------- */
.ag-loop-card {
  border: 1px solid var(--ag-border-dark);
  padding: 1.75rem 1.5rem;
  height: 100%;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.ag-loop-card:hover { border-color: var(--ag-gold); transform: translateY(-4px); }
.ag-loop-card-gold { border-color: var(--ag-gold); background: rgba(201, 162, 39, 0.06); }

.ag-loop-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ag-gold);
  margin-bottom: 0.75rem;
  letter-spacing: 0.1em;
}

.ag-loop-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.ag-loop-card p {
  font-size: 0.9rem;
  color: var(--ag-gray);
  margin: 0;
}

.ag-loop-tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2vw, 1.3rem);
  letter-spacing: 0.08em;
  color: var(--ag-black);
}

/* ---------- FOCUS CARDS ---------- */
.ag-focus-card {
  border-left: 2px solid var(--ag-gold);
  padding: 0.25rem 0 0.25rem 1.5rem;
  height: 100%;
}
.ag-focus-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  margin-bottom: 0.6rem;
}
.ag-focus-card p {
  color: rgba(247, 246, 242, 0.6);
  line-height: 1.6;
  margin: 0;
}

/* ---------- EXPERIMENT CARDS ---------- */
.ag-exp-card {
  background: var(--ag-black);
  color: var(--ag-white);
  padding: 2rem;
  height: 100%;
  border-top: 3px solid var(--ag-gold);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.ag-exp-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.ag-exp-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--ag-gold);
  margin-bottom: 1.25rem;
}

.ag-exp-field {
  font-size: 0.92rem;
  line-height: 1.6;
  color: rgba(247, 246, 242, 0.85);
  margin-bottom: 0.85rem;
}
.ag-exp-field strong {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ag-gold);
  display: block;
  margin-bottom: 0.2rem;
}

.ag-exp-cta {
  display: inline-block;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--ag-white);
  text-decoration: none;
  border-bottom: 1px solid var(--ag-gold);
  padding-bottom: 2px;
  transition: color 0.2s ease;
}
.ag-exp-cta:hover { color: var(--ag-gold-bright); }

/* ---------- CASE STUDY ---------- */
.ag-case-study {
  background: var(--ag-black-soft);
  border-top: 1px solid var(--ag-border);
  border-bottom: 1px solid var(--ag-border);
}

.ag-stat-block {
  border: 1px solid var(--ag-border);
  padding: 2.5rem 2rem;
  text-align: center;
}

.ag-stat-figure {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  color: var(--ag-white);
}

.ag-timeline {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

.ag-timeline-step {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(247, 246, 242, 0.6);
  border: 1px solid var(--ag-border);
  padding: 0.5rem 0.85rem;
}

.ag-timeline-step-gold {
  color: var(--ag-black);
  background: var(--ag-gold);
  border-color: var(--ag-gold);
}

/* ---------- NEWSLETTER ---------- */
.ag-nl-step {
  border: 1px solid var(--ag-border);
  padding: 1rem 0.5rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: rgba(247, 246, 242, 0.7);
  height: 100%;
}
.ag-nl-step span {
  display: block;
  color: var(--ag-gold);
  font-size: 0.8rem;
  margin-bottom: 0.4rem;
}
.ag-nl-step-gold {
  border-color: var(--ag-gold);
  background: rgba(201, 162, 39, 0.08);
}

.ag-input {
  background: transparent;
  border: 1px solid rgba(247, 246, 242, 0.3);
  color: var(--ag-white);
  border-radius: 2px;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.ag-input::placeholder { color: rgba(247, 246, 242, 0.4); letter-spacing: 0.05em; }
.ag-input:focus {
  background: transparent;
  border-color: var(--ag-gold);
  color: var(--ag-white);
  box-shadow: 0 0 0 0.2rem rgba(201, 162, 39, 0.15);
}

/* ---------- ABOUT ---------- */
.ag-photo-block {
  aspect-ratio: 4 / 5;
  width: 100%;
  background: linear-gradient(150deg, var(--ag-black) 0%, #2a2a2a 60%, var(--ag-gold) 140%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 5rem;
  color: rgba(247, 246, 242, 0.9);
  letter-spacing: 0.02em;
}

.ag-quote {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  border-left: 3px solid var(--ag-gold);
  padding-left: 1.25rem;
  margin: 1.75rem 0;
}

.ag-social {
  width: 44px;
  height: 44px;
  border: 1px solid var(--ag-border-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ag-black);
  font-size: 1.1rem;
  text-decoration: none;
  transition: all 0.2s ease;
}
.ag-social:hover {
  background: var(--ag-gold);
  border-color: var(--ag-gold);
  color: var(--ag-black);
  transform: translateY(-3px);
}

/* ---------- BRIDGE ---------- */
.ag-bridge {
  background: linear-gradient(180deg, #ffffff 0%, #f1ecdd 100%);
  border-top: 1px solid var(--ag-border-dark);
  border-bottom: 1px solid var(--ag-border-dark);
}

/* ---------- FOOTER ---------- */
.ag-footer {
  background: var(--ag-black);
  color: var(--ag-white);
  padding: 3.5rem 0 2rem;
}

.ag-footer-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(247, 246, 242, 0.5);
  margin-top: 0.5rem;
}

.ag-footer-links a {
  color: rgba(247, 246, 242, 0.7);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}
.ag-footer-links a:hover { color: var(--ag-gold); }

.ag-footer-rule {
  border-color: var(--ag-border);
  margin: 2rem 0 1.25rem;
}

.ag-footer-copy {
  font-size: 0.75rem;
  color: rgba(247, 246, 242, 0.4);
  text-align: center;
  margin: 0;
}

@media (max-width: 767.98px) {
  .ag-hero { min-height: auto; padding-top: 7rem; }
}