/* ============================================================
   Tom Droste — AI Consulting
   Liquid Glass v2 design system, "loud" opener variant
   Signal Blue content mode + Bone Cream/Rust Orange CTA mode
   ============================================================ */

:root {
  --space-black: #0A0B10;
  --space-black-soft: #101219;
  --cloud-white: #F6F6F4;
  --graphite: #1D1D1F;
  --white: #F5F5F7;
  --white-dim: rgba(245, 245, 247, 0.68);
  --white-faint: rgba(245, 245, 247, 0.4);

  --signal-blue: #0A6DFF;
  --signal-blue-bright: #4A9BFF;
  --signal-blue-glow: rgba(74, 155, 255, 0.35);

  --bone-cream: #F2ECDF;
  --rust-orange: #C2592E;
  --gradient-gold: #E3A84F;
  --off-black: #241407;

  --glass-bg: rgba(245, 245, 247, 0.06);
  --glass-border: rgba(245, 245, 247, 0.14);
  --glass-border-top: rgba(245, 245, 247, 0.28);

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --container: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--space-black);
  color: var(--white);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  line-height: 1.5;
}

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

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

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

@media (min-width: 768px) {
  .wrap { padding: 0 40px; }
}

/* ---------- Mesh blobs ---------- */

.mesh-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.55;
  will-change: transform;
}

.mesh-blob.blue {
  background: radial-gradient(circle at 30% 30%, var(--signal-blue-bright), var(--signal-blue) 55%, transparent 75%);
}

.mesh-blob.drift {
  animation: drift 22s ease-in-out infinite;
}

.mesh-blob.drift-slow {
  animation: drift 34s ease-in-out infinite reverse;
}

@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(4%, 6%) scale(1.08); }
  66% { transform: translate(-3%, -4%) scale(0.95); }
}

/* ---------- Glass ---------- */

.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top-color: var(--glass-border-top);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-radius: 24px;
}

/* ---------- Nav ---------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(10, 11, 16, 0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid rgba(245, 245, 247, 0.08);
}

.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-mark {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.nav-mark .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal-blue-bright);
  display: inline-block;
  box-shadow: 0 0 12px var(--signal-blue-glow);
}

.nav-links {
  display: none;
  gap: 32px;
  font-size: 0.94rem;
  color: var(--white-dim);
}

.nav-links a { transition: color 0.2s var(--ease-out); }
.nav-links a:hover, .nav-links a.active { color: var(--white); }

@media (min-width: 860px) {
  .nav-links { display: flex; align-items: center; }
}

.nav-cta {
  display: none;
}

@media (min-width: 860px) {
  .nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    border-radius: 999px;
    background: var(--signal-blue);
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    transition: transform 0.2s var(--ease-spring), box-shadow 0.2s var(--ease-out);
  }
  .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px var(--signal-blue-glow); }
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
}

@media (min-width: 860px) {
  .nav-toggle { display: none; }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px 24px 20px;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  padding: 12px 4px;
  font-size: 1.1rem;
  border-bottom: 1px solid rgba(245, 245, 247, 0.08);
  color: var(--white-dim);
}

@media (min-width: 860px) {
  .mobile-menu { display: none !important; }
}

/* ---------- Typography ---------- */

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--signal-blue-bright);
}

h1, h2, h3 { font-weight: 800; letter-spacing: -0.03em; line-height: 1.04; }

h2 { font-size: clamp(2.1rem, 4.2vw, 3.4rem); letter-spacing: -0.025em; }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.7rem); letter-spacing: -0.015em; }

p { color: var(--white-dim); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal-blue-bright);
  margin-bottom: 14px;
  display: block;
}

.mono-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.25s var(--ease-out);
}

.btn-primary {
  background: var(--signal-blue);
  color: var(--white);
}
.btn-primary:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 12px 32px var(--signal-blue-glow); }

.btn-ghost {
  background: rgba(245, 245, 247, 0.06);
  color: var(--white);
  border: 1px solid rgba(245, 245, 247, 0.2);
}
.btn-ghost:hover { background: rgba(245, 245, 247, 0.12); transform: translateY(-2px); }

.btn-cta {
  background: var(--off-black);
  color: var(--bone-cream);
}
.btn-cta:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 14px 34px rgba(36, 20, 7, 0.5); }

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

.hero {
  position: relative;
  padding: 100px 0 90px;
  overflow: hidden;
}

.hero .mesh-blob.blue {
  width: 640px;
  height: 640px;
  top: -220px;
  right: -180px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero h1 {
  font-size: clamp(2.6rem, 7.2vw, 5.6rem);
}

.hero .gradient-word {
  background: linear-gradient(120deg, var(--signal-blue-bright), var(--signal-blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  margin-top: 26px;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  max-width: 620px;
  color: var(--white-dim);
}

.hero-actions {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-stats {
  margin-top: 72px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 640px;
}

@media (min-width: 640px) {
  .hero-stats { grid-template-columns: repeat(4, 1fr); }
}

.stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--signal-blue-bright);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--white-faint);
  margin-top: 4px;
}

/* ---------- Marquee ---------- */

.marquee {
  border-top: 1px solid rgba(245, 245, 247, 0.1);
  border-bottom: 1px solid rgba(245, 245, 247, 0.1);
  padding: 22px 0;
  overflow: hidden;
  position: relative;
}

.marquee-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee 28s linear infinite;
}

.marquee-track span {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white-faint);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 48px;
}

.marquee-track span::after {
  content: "•";
  color: var(--signal-blue-bright);
  margin-left: 48px;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

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

.section {
  padding: 100px 0;
  position: relative;
}

.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-dark { background: var(--space-black); }

/* ---------- Cards / grid ---------- */

.grid-2 { display: grid; gap: 24px; grid-template-columns: 1fr; }
.grid-3 { display: grid; gap: 24px; grid-template-columns: 1fr; }

@media (min-width: 720px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  padding: 32px;
  transition: transform 0.3s var(--ease-out), background 0.3s var(--ease-out);
}

.card:hover { transform: translateY(-6px); background: rgba(245, 245, 247, 0.09); }

.card .num {
  font-family: var(--font-mono);
  color: var(--signal-blue-bright);
  font-size: 0.9rem;
  margin-bottom: 18px;
  display: block;
}

.card h3 { margin-bottom: 12px; }

.card p { font-size: 0.96rem; }

/* ---------- Process steps ---------- */

.steps {
  display: grid;
  gap: 0;
  margin-top: 8px;
}

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(245, 245, 247, 0.1);
}

.step:first-child { padding-top: 0; }

.step-num {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--signal-blue-bright);
}

.step h3 { margin-bottom: 8px; font-size: 1.25rem; }
.step p { font-size: 0.96rem; max-width: 560px; }

/* ---------- CTA (warm mode) ---------- */

.cta-warm {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  padding: 72px 32px;
  background: linear-gradient(155deg, var(--bone-cream) 0%, var(--rust-orange) 130%);
  text-align: center;
}

@media (min-width: 768px) { .cta-warm { padding: 96px 64px; } }

.cta-warm h2 {
  color: var(--off-black);
  font-size: clamp(2.2rem, 6vw, 4.2rem);
}

.cta-warm .gradient-word {
  background: linear-gradient(120deg, var(--gradient-gold), var(--rust-orange));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.cta-warm p {
  color: rgba(36, 20, 7, 0.75);
  max-width: 520px;
  margin: 20px auto 0;
  font-size: 1.05rem;
}

.cta-warm .hero-actions { justify-content: center; margin-top: 36px; }

/* ---------- Reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

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

.site-footer {
  padding: 64px 0 40px;
  border-top: 1px solid rgba(245, 245, 247, 0.1);
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-bottom: 40px;
}

@media (min-width: 720px) {
  .footer-top { flex-direction: row; justify-content: space-between; align-items: flex-start; }
}

.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-size: 0.92rem;
  color: var(--white-dim);
}

.footer-legal {
  font-size: 0.8rem;
  color: var(--white-faint);
  line-height: 1.7;
  border-top: 1px solid rgba(245, 245, 247, 0.08);
  padding-top: 24px;
}

/* ---------- Page hero (inner pages) ---------- */

.page-hero {
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}

.page-hero h1 {
  font-size: clamp(2.4rem, 5.6vw, 4rem);
  max-width: 780px;
}

.page-hero p {
  margin-top: 20px;
  max-width: 560px;
  font-size: 1.1rem;
}

/* ---------- Quote ---------- */

.pull-quote {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: var(--white);
  max-width: 780px;
  border-left: 3px solid var(--signal-blue);
  padding-left: 28px;
}

/* ---------- Contact form ---------- */

.form-grid {
  display: grid;
  gap: 18px;
}

.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--white-faint);
  margin-bottom: 8px;
}

.field input,
.field textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(245, 245, 247, 0.05);
  border: 1px solid rgba(245, 245, 247, 0.16);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.98rem;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--signal-blue-bright);
  background: rgba(245, 245, 247, 0.08);
}

.field textarea { resize: vertical; min-height: 140px; }

.contact-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-line {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(245, 245, 247, 0.1);
}

.contact-line .label {
  font-size: 0.78rem;
  color: var(--white-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-line .value {
  font-size: 1.15rem;
  font-weight: 600;
}