/* ============================================================
   AMNIKON — Global Design System
   ============================================================ */

/* 1. Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* 2. Design Tokens */
:root {
  /* Colors */
  --bg:           #07091a;
  --surface:      #0f1629;
  --surface-2:    #162040;
  --surface-3:    #1e2d56;
  --border:       rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);

  --accent:       #1565c0;
  --accent-light: #1e88e5;
  --accent-dark:  #0d47a1;
  --accent-glow:  rgba(21, 101, 192, 0.25);
  --accent-text:  #00b4d8;
  --accent-cyan:  #00b4d8;
  --accent-cyan-light: #4fc3f7;

  --text:         #f1f5f9;
  --text-muted:   #94a3b8;
  --text-subtle:  #64748b;
  --white:        #ffffff;

  /* Typography */
  --font:         'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs:     4px;
  --space-sm:     8px;
  --space-md:     16px;
  --space-lg:     24px;
  --space-xl:     40px;
  --space-2xl:    64px;
  --space-3xl:    96px;

  /* Radii */
  --radius-sm:    6px;
  --radius-md:    12px;
  --radius-lg:    20px;
  --radius-xl:    32px;
  --radius-full:  9999px;

  /* Shadows */
  --shadow-sm:    0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md:    0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg:    0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow:  0 0 40px rgba(37, 99, 235, 0.2);

  /* Transitions */
  --ease:         cubic-bezier(0.4, 0, 0.2, 1);
  --transition:   0.3s var(--ease);
  --transition-fast: 0.15s var(--ease);
  --transition-slow: 0.5s var(--ease);

  /* Layout */
  --max-width:    1280px;
  --nav-height:   72px;
}

/* 3. Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* 4. Typography Scale */
h1 { font-size: clamp(2rem, 5vw, 3.75rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); font-weight: 600; line-height: 1.3; }
h4 { font-size: 1.125rem; font-weight: 600; }
h5 { font-size: 1rem; font-weight: 600; }
p  { color: var(--text-muted); line-height: 1.7; }

/* 5. Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-3xl) 0;
}

.section-sm {
  padding: var(--space-2xl) 0;
}

/* Section tag / eyebrow text */
.eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.3);
  margin: 0 auto var(--space-md);
}
/* Section header block */
.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header p {
  max-width: 600px;
  margin-top: var(--space-md);
}

.section-header.centered {
  text-align: center;
}

.section-header.centered p {
  margin: var(--space-md) auto 0;
}

/* 6. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 13px 28px;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--white);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.4);
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border-hover);
}

.btn-outline:hover {
  background: var(--surface);
  border-color: var(--accent-text);
  color: var(--accent-text);
  transform: translateY(-2px);
}

.btn-support {
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1.5px solid var(--border);
}

.btn-support:hover {
  background: var(--surface-3);
  color: var(--text);
  border-color: var(--border-hover);
}

/* 7. Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

/* 8. Grid helpers */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-xl); }

/* 9. Scroll Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal-stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
.reveal-stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.1s; }
.reveal-stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.2s; }
.reveal-stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.3s; }
.reveal-stagger.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.4s; }
.reveal-stagger.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.5s; }

/* 10. Dividers & Decorative */
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-2xl) 0;
}

.highlight { color: var(--accent-text); }

/* 11. Page Hero (shared) */
.page-hero {
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-3xl);
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.page-hero .eyebrow { margin-bottom: var(--space-md); }

.page-hero h1 {
  max-width: 800px;
  margin: 0 auto var(--space-lg);
}

.page-hero p {
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  font-size: 1.125rem;
}

/* 12. CTA Section (shared) */
.cta-section {
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 60px 0;
  text-align: center;
}

.cta-section h2 { margin-bottom: var(--space-md); }
.cta-section p { margin-bottom: var(--space-xl); max-width: 560px; margin-left: auto; margin-right: auto; }

/* 13. Badge */
.badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.25);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

/* 14. Form Elements */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-size: 0.9375rem;
  padding: 12px 16px;
  transition: var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder { color: var(--text-subtle); }

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

/* 15. Responsive */
@media (max-width: 1024px) {
  .container { padding: 0 var(--space-lg); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --nav-height: 64px; }
  .container { padding: 0 var(--space-md); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: var(--space-2xl) 0; }
  .page-hero { padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-2xl); }
}