/* =========================================================
   Grizzilla, Inc. — Shared Stylesheet
   Brand colors: Grizzilla Green, Black, White
   Aesthetic: Modern minimalist meets bold AI lab
   ========================================================= */

:root {
  --green: #4ECCA3;
  --green-dark: #3AAE89;
  --green-light: #7CDCBB;
  --green-glow: rgba(78, 204, 163, 0.25);

  --black: #232931;
  --ink: #232931;
  --charcoal: #1A1F26;
  --slate: #2D3540;

  --white: #FFFFFF;
  --cream: #FAFAF9;
  --gray-50: #F5F5F5;
  --gray-100: #E5E5E5;
  --gray-300: #BFBFBF;
  --gray-500: #6B7280;
  --gray-700: #374151;

  --max-w: 1200px;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Inter', sans-serif;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.18);
  --shadow-green: 0 8px 32px rgba(78, 204, 163, 0.2);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(2.5rem, 6vw, 4.75rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }
p { font-size: 1.0625rem; color: var(--gray-700); }
.lead { font-size: 1.25rem; color: var(--gray-700); line-height: 1.5; }
.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--green-dark);
  margin-bottom: 1rem;
}
.eyebrow.on-dark { color: var(--green); }

.text-green { color: var(--green-dark); }
.gradient-text {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
section { padding: 6rem 0; }
section.tight { padding: 4rem 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--green);
  color: var(--black);
}
.btn-primary:hover {
  background: var(--green-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-green);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-ghost:hover {
  border-color: var(--green);
  color: var(--green);
}
.btn-dark {
  background: var(--black);
  color: var(--white);
}
.btn-dark:hover { background: var(--charcoal); transform: translateY(-2px); }

.btn-arrow::after {
  content: '→';
  transition: transform 0.2s ease;
}
.btn-arrow:hover::after { transform: translateX(4px); }

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}
.nav-brand svg { width: 32px; height: 32px; }
.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--black); }
.nav-links a.active { position: relative; }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--green);
  border-radius: 2px;
}
.nav .btn { padding: 0.625rem 1.25rem; font-size: 0.9rem; }

@media (max-width: 720px) {
  .nav-links a:not(.btn) { display: none; }
}

/* ---------- Hero (dark) ---------- */
.hero-dark {
  background: var(--black);
  color: var(--white);
  position: relative;
  overflow: hidden;
  padding: 8rem 0 7rem;
}
.hero-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(78, 204, 163, 0.18), transparent 70%);
  pointer-events: none;
}
.hero-dark::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black, transparent 70%);
}
.hero-dark .container { position: relative; z-index: 1; }
.hero-dark h1 { color: var(--white); margin-bottom: 1.5rem; }
.hero-dark .lead { color: rgba(255,255,255,0.7); max-width: 640px; margin-bottom: 2.5rem; }
.hero-dark .hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* ---------- Hero (light) ---------- */
.hero-light {
  padding: 6rem 0 4rem;
  background: linear-gradient(180deg, var(--cream) 0%, var(--white) 100%);
}
.hero-light h1 { margin-bottom: 1.5rem; }
.hero-light .lead { max-width: 720px; }

/* ---------- Cards & Grids ---------- */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all 0.3s ease;
}
.card:hover {
  border-color: var(--green);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.product-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  border-color: var(--green);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.product-card-visual {
  height: 160px;
  background: linear-gradient(135deg, var(--charcoal), var(--black));
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-card-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, var(--green-glow), transparent 60%);
}
.product-card-visual .mark {
  position: relative;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.04em;
}
.product-card-body { padding: 1.75rem; flex: 1; display: flex; flex-direction: column; }
.product-card h3 { margin-bottom: 0.5rem; }
.product-card p { font-size: 0.95rem; color: var(--gray-500); flex: 1; }
.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--gray-100);
}
.product-card-category {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-launched {
  background: rgba(78, 204, 163, 0.12);
  color: var(--green-dark);
}
.badge-launched::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.badge-launching {
  background: rgba(255,255,255,0.08);
  color: var(--gray-500);
  border: 1px solid var(--gray-100);
}
.badge-launching::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gray-300);
}

/* ---------- Sections ---------- */
.section-header { text-align: center; max-width: 720px; margin: 0 auto 4rem; }
.section-header.left { text-align: left; margin: 0 0 3rem; }
.section-header p { margin-top: 1rem; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 2.5rem; } }

/* ---------- Feature list ---------- */
.feature-list { display: grid; gap: 1.25rem; }
.feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.feature-icon {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(78, 204, 163, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-dark);
  font-weight: 700;
}
.feature-item h4 { margin-bottom: 0.25rem; }
.feature-item p { font-size: 0.95rem; }

/* ---------- Stat strip ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  padding: 2rem 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.stat-num {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--green), var(--green-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { font-size: 0.875rem; color: rgba(255,255,255,0.6); margin-top: 0.25rem; }

/* ---------- CTA Strip ---------- */
.cta-strip {
  background: var(--black);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, var(--green-glow), transparent 60%);
}
.cta-strip > * { position: relative; z-index: 1; }
.cta-strip h2 { color: var(--white); margin-bottom: 1rem; }
.cta-strip p { color: rgba(255,255,255,0.7); margin-bottom: 2rem; }
@media (max-width: 720px) { .cta-strip { padding: 2.5rem 1.5rem; } }

/* ---------- Footer ---------- */
.footer {
  background: var(--black);
  color: var(--white);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
.footer h4 { color: var(--white); margin-bottom: 1rem; font-size: 0.875rem; letter-spacing: 0.1em; text-transform: uppercase; }
.footer ul { list-style: none; display: grid; gap: 0.625rem; }
.footer ul a { color: rgba(255,255,255,0.6); font-size: 0.95rem; transition: color 0.2s; }
.footer ul a:hover { color: var(--green); }
.footer-brand p { color: rgba(255,255,255,0.6); margin-top: 1rem; max-width: 320px; }
.footer-brand .brand-mark { display: flex; align-items: center; gap: 0.625rem; font-weight: 700; font-size: 1.25rem; color: var(--white); }
.footer-brand .brand-mark svg { width: 36px; height: 36px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 2rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
}
@media (max-width: 720px) { .footer-bottom { flex-direction: column; gap: 1rem; } }

/* ---------- Form ---------- */
.form-wrap {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; gap: 1.25rem; margin-bottom: 1.25rem; }
.form-row.two { grid-template-columns: 1fr 1fr; }
@media (max-width: 540px) { .form-row.two { grid-template-columns: 1fr; } }
.form-field label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--gray-700); }
.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 4px var(--green-glow);
}
.form-field textarea { min-height: 140px; resize: vertical; }

/* ---------- Logo concept showcase ---------- */
.logo-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.logo-tile {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
}
.logo-tile.dark {
  background: var(--black);
  color: var(--white);
  border-color: var(--charcoal);
}
.logo-tile svg { width: 96px; height: 96px; margin: 0 auto 1.5rem; }
.logo-tile h4 { margin-bottom: 0.25rem; }
.logo-tile p { font-size: 0.875rem; color: var(--gray-500); }
.logo-tile.dark p { color: rgba(255,255,255,0.6); }

/* ---------- Tag list ---------- */
.tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag {
  font-size: 0.8125rem;
  padding: 0.375rem 0.75rem;
  border-radius: 999px;
  background: var(--gray-50);
  color: var(--gray-700);
  font-weight: 500;
}

/* ---------- Utility ---------- */
.muted { color: var(--gray-500); }
.center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; } .mb-4 { margin-bottom: 2rem; }