/* ===================================================
   FRAMBIOM — Design System · main.css
   Variables · Reset · Typographie · Layout · Grille
   =================================================== */

/* ---------- Design Tokens ---------- */
:root {
  /* Backgrounds */
  --bg-deep: #08060f;
  --bg-base: #0d0a18;
  --bg-surface: rgba(255, 255, 255, 0.04);
  --bg-elevated: rgba(255, 255, 255, 0.08);

  /* Accents */
  --cyan: #00D9F5;
  --violet: #7C3AED;
  --rose: #EC4899;
  --orange: #F97316;

  /* Gradients */
  --gradient-main: linear-gradient(135deg, #00D9F5 0%, #7C3AED 50%, #EC4899 100%);
  --gradient-btn: linear-gradient(135deg, #00D9F5, #7C3AED);

  /* Text */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(0, 217, 245, 0.3);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  --space-4xl: 8rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 24px rgba(0, 217, 245, 0.12);
  --shadow-glow-hover: 0 0 32px rgba(0, 217, 245, 0.25);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 300ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 600ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Nav */
  --nav-height: 120px;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--cyan) 0%, var(--violet) 50%, var(--rose) 100%);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  filter: brightness(1.2);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-deep);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
  list-style: none;
}

input,
textarea,
select,
button {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
}

/* ---------- Typography ---------- */
.h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

.h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
}

.h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
}

.text-sm {
  font-size: 0.875rem;
}

.text-lg {
  font-size: 1.125rem;
}

.text-muted {
  color: var(--text-muted);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-center {
  text-align: center;
}

/* ---------- Gradient Text ---------- */
.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-cyan {
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background-color: var(--bg-base);
}

/* ---------- Grid ---------- */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* ---------- Flex utilities ---------- */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm {
  gap: var(--space-sm);
}

.gap-md {
  gap: var(--space-md);
}

.gap-lg {
  gap: var(--space-lg);
}

.gap-xl {
  gap: var(--space-xl);
}

.gap-2xl {
  gap: var(--space-2xl);
}

.flex-wrap {
  flex-wrap: wrap;
}

/* ---------- Spacing utilities ---------- */
.mt-sm {
  margin-top: var(--space-sm);
}

.mt-md {
  margin-top: var(--space-md);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mt-xl {
  margin-top: var(--space-xl);
}

.mt-2xl {
  margin-top: var(--space-2xl);
}

.mt-3xl {
  margin-top: var(--space-3xl);
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

.mb-2xl {
  margin-bottom: var(--space-2xl);
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .badge {
  margin-bottom: var(--space-md);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  max-width: 560px;
  margin: 0 auto;
  font-size: 1.0625rem;
}

/* ---------- Divider ---------- */
.divider {
  width: 48px;
  height: 3px;
  background: var(--gradient-btn);
  border-radius: var(--radius-full);
  margin: var(--space-md) auto var(--space-xl);
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes blobFloat {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(24px, -24px) scale(1.06);
  }

  66% {
    transform: translate(-18px, 12px) scale(0.96);
  }
}

@keyframes pulse-glow {

  0%,
  100% {
    opacity: 0.15;
  }

  50% {
    opacity: 0.25;
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ---------- Scroll-reveal (via JS) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ---------- Page wrapper ---------- */
.page-main {
  padding-top: var(--nav-height);
  min-height: calc(100vh - var(--nav-height));
}

/* ---------- Page hero (pages internes) ---------- */
.page-hero {
  padding: 3.5rem 0 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124, 58, 237, 0.15), transparent);
  pointer-events: none;
}

.page-hero h1 {
  margin-bottom: var(--space-md);
}

.page-hero p {
  max-width: 560px;
  margin: 0 auto var(--space-xl);
  font-size: 1.125rem;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
  justify-content: center;
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--cyan);
}

.breadcrumb span {
  color: var(--text-muted);
}

/* ---------- Success / Error messages ---------- */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  font-size: 0.9375rem;
}

.alert-success {
  background: rgba(0, 217, 245, 0.08);
  border: 1px solid rgba(0, 217, 245, 0.25);
  color: var(--cyan);
}

.alert-error {
  background: rgba(236, 72, 153, 0.08);
  border: 1px solid rgba(236, 72, 153, 0.25);
  color: var(--rose);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .section {
    padding: var(--space-3xl) 0;
  }

  .page-hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

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