/* ============================================================
   DarijaAI — global.css
   Design tokens · Dark/Light mode · Reset · Typography
   ============================================================ */

/* ── Design Tokens ──────────────────────────────────────────── */
:root {
  --c-purple:      #7c3aed;
  --c-purple-l:    #a78bfa;
  --c-pink:        #ec4899;
  --c-orange:      #f97316;

  --grad-main:     linear-gradient(135deg, #7c3aed, #ec4899);
  --grad-text:     linear-gradient(135deg, #a78bfa, #ec4899);
  --grad-hero:     linear-gradient(135deg, #a78bfa 0%, #ec4899 50%, #f97316 100%);

  --radius-sm:     8px;
  --radius-md:     12px;
  --radius-lg:     16px;
  --radius-xl:     20px;
  --radius-full:   9999px;

  --transition:    0.2s ease;
  --font:          'Inter', system-ui, -apple-system, sans-serif;

  --nav-h:         64px;
  --max-w:         1100px;
  --max-w-content: 860px;
}

/* ── Dark Mode (default) ────────────────────────────────────── */
:root,
[data-theme="dark"] {
  --bg:            #050508;
  --bg-2:          #0d0d18;
  --bg-card:       rgba(255,255,255,0.03);
  --bg-card-hover: rgba(124,58,237,0.06);
  --bg-input:      rgba(255,255,255,0.05);
  --bg-btn:        rgba(255,255,255,0.06);
  --bg-nav:        rgba(5,5,8,0.75);
  --bg-nav-solid:  rgba(5,5,8,0.97);
  --bg-drop:       rgba(5,5,8,0.98);

  --border:        rgba(255,255,255,0.07);
  --border-hover:  rgba(167,139,250,0.35);
  --border-card:   rgba(255,255,255,0.07);
  --border-input:  rgba(255,255,255,0.09);
  --border-nav:    rgba(167,139,250,0.1);

  --text:          #ffffff;
  --text-2:        #e2e8f0;
  --text-3:        #9ca3af;
  --text-4:        #6b7280;
  --text-5:        #4b5563;

  --shadow-btn:    0 4px 24px rgba(124,58,237,0.35);
  --shadow-btn-h:  0 8px 32px rgba(124,58,237,0.5);
  --shadow-cta:    0 2px 16px rgba(124,58,237,0.4), 0 0 0 1px rgba(167,139,250,0.15);
  --shadow-cta-h:  0 4px 24px rgba(124,58,237,0.6), 0 0 0 1px rgba(167,139,250,0.3);

  --mesh-1:        rgba(120,80,255,0.18);
  --mesh-2:        rgba(236,72,153,0.1);
  --mesh-3:        rgba(59,130,246,0.06);
}

/* ── Light Mode ─────────────────────────────────────────────── */
[data-theme="light"] {
  --bg:            #f5f4ff;
  --bg-2:          #ffffff;
  --bg-card:       rgba(255,255,255,0.9);
  --bg-card-hover: rgba(124,58,237,0.04);
  --bg-input:      rgba(0,0,0,0.04);
  --bg-btn:        rgba(0,0,0,0.05);
  --bg-nav:        rgba(245,244,255,0.85);
  --bg-nav-solid:  rgba(245,244,255,0.99);
  --bg-drop:       rgba(245,244,255,0.99);

  --border:        rgba(0,0,0,0.08);
  --border-hover:  rgba(124,58,237,0.35);
  --border-card:   rgba(0,0,0,0.08);
  --border-input:  rgba(0,0,0,0.1);
  --border-nav:    rgba(124,58,237,0.12);

  --text:          #0f0f1a;
  --text-2:        #1e1b2e;
  --text-3:        #374151;
  --text-4:        #6b7280;
  --text-5:        #9ca3af;

  --shadow-btn:    0 4px 24px rgba(124,58,237,0.25);
  --shadow-btn-h:  0 8px 32px rgba(124,58,237,0.4);
  --shadow-cta:    0 2px 16px rgba(124,58,237,0.3), 0 0 0 1px rgba(124,58,237,0.2);
  --shadow-cta-h:  0 4px 24px rgba(124,58,237,0.5), 0 0 0 1px rgba(124,58,237,0.35);

  --mesh-1:        rgba(120,80,255,0.08);
  --mesh-2:        rgba(236,72,153,0.05);
  --mesh-3:        rgba(59,130,246,0.03);
}

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

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: var(--nav-h);
  transition: background var(--transition), color var(--transition);
}

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

/* ── Typography ─────────────────────────────────────────────── */
h1 { font-size: clamp(36px, 5vw, 58px); font-weight: 900; letter-spacing: -2px; line-height: 1.06; }
h2 { font-size: clamp(26px, 3.5vw, 40px); font-weight: 800; letter-spacing: -1px; line-height: 1.15; }
h3 { font-size: clamp(18px, 2.5vw, 24px); font-weight: 700; letter-spacing: -0.5px; }
h4 { font-size: 16px; font-weight: 600; }
p  { color: var(--text-3); line-height: 1.7; }

.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.grad-hero-text {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: gradShift 4s linear infinite;
}

@keyframes gradShift {
  0%   { background-position: 0% }
  100% { background-position: 200% }
}

/* ── Page Background Mesh ───────────────────────────────────── */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--mesh-1), transparent),
    radial-gradient(ellipse 60% 40% at 80% 80%,  var(--mesh-2), transparent),
    radial-gradient(ellipse 50% 40% at 10% 60%,  var(--mesh-3), transparent);
}

.page-content {
  position: relative;
  z-index: 1;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn-h);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: var(--bg-btn);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: var(--bg-card);
}

.btn-cta {
  background: var(--grad-main);
  color: #fff;
  box-shadow: var(--shadow-cta);
  padding: 9px 22px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
}
.btn-cta:hover {
  box-shadow: var(--shadow-cta-h);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 7px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition);
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(167,139,250,0.3), transparent);
}

.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

/* ── Form Elements ──────────────────────────────────────────── */
.input {
  width: 100%;
  padding: 13px 18px;
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: var(--radius-md);
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: all var(--transition);
  -webkit-appearance: none;
}

.input::placeholder { color: var(--text-5); }

.input:focus {
  border-color: rgba(167,139,250,0.5);
  background: rgba(124,58,237,0.06);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}

.label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-4);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

/* ── Badge / Tag ─────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.badge-purple {
  background: rgba(167,139,250,0.1);
  border: 1px solid rgba(167,139,250,0.25);
  color: var(--c-purple-l);
}

.badge-gold {
  background: linear-gradient(135deg, rgba(251,191,36,0.15), rgba(249,115,22,0.15));
  border: 1px solid rgba(251,191,36,0.4);
  color: #fbbf24;
}

/* ── Section Layout ─────────────────────────────────────────── */
.section {
  padding: 80px 20px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-sm { padding: 48px 20px; }

.section-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--c-purple-l);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 14px;
  color: var(--text);
}

.section-sub {
  font-size: 17px;
  color: var(--text-4);
  max-width: 520px;
}

/* ── Divider ────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 0 auto;
  max-width: var(--max-w);
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 40px;
  margin-top: auto;
  position: relative;
  z-index: 1;
}

.site-footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-footer__logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.site-footer__links a {
  font-size: 13px;
  color: var(--text-4);
  transition: color var(--transition);
}

.site-footer__links a:hover { color: var(--c-purple-l); }

/* ── Utilities ──────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-muted  { color: var(--text-4); }
.mt-4  { margin-top: 4px; }
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.w-full { width: 100%; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(124,58,237,0.4); }
  50%       { box-shadow: 0 0 0 8px rgba(124,58,237,0); }
}
.animate-fadeUp { animation: fadeUp 0.5s ease forwards; }
.animate-fadeIn { animation: fadeIn 0.3s ease forwards; }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(167,139,250,0.3);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(167,139,250,0.5); }

/* ── Selection ──────────────────────────────────────────────── */
::selection {
  background: rgba(124,58,237,0.3);
  color: #fff;
}

/* ── Responsive helpers ─────────────────────────────────────── */
@media (max-width: 768px) {
  .section { padding: 56px 16px; }
  .hide-mobile { display: none !important; }
  .site-footer { padding: 24px 16px; }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}