/* ============================================================
   TokenProp — Global Design System
   ============================================================ */

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

/* ---------- Design Tokens ---------- */
:root {
  /* Backgrounds */
  --bg-primary:    #0a0e1a;
  --bg-secondary:  #111827;
  --bg-card:       rgba(17, 24, 39, 0.65);
  --bg-card-hover: rgba(30, 41, 59, 0.75);
  --bg-glass:      rgba(255,255,255,0.04);
  --bg-glass-border: rgba(255,255,255,0.08);

  /* Text */
  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;

  /* Accent */
  --accent-blue:    #4F8EF7;
  --accent-blue-glow: rgba(79,142,247,0.35);
  --accent-gold:    #F5A623;
  --accent-gold-glow: rgba(245,166,35,0.30);
  --accent-green:   #00D4A1;
  --accent-green-glow: rgba(0,212,161,0.30);
  --accent-red:     #EF4444;

  /* Gradients */
  --gradient-hero:  linear-gradient(135deg, #0a0e1a 0%, #1a1040 40%, #0f172a 100%);
  --gradient-blue:  linear-gradient(135deg, #4F8EF7, #6C63FF);
  --gradient-gold:  linear-gradient(135deg, #F5A623, #F7C948);
  --gradient-green: linear-gradient(135deg, #00D4A1, #00B4D8);
  --gradient-card:  linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);

  /* Dimensions */
  --nav-height: 72px;
  --container-max: 1280px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Shadows */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.25);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.35);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.45);
  --shadow-glow-blue:  0 0 30px var(--accent-blue-glow);
  --shadow-glow-gold:  0 0 30px var(--accent-gold-glow);
  --shadow-glow-green: 0 0 30px var(--accent-green-glow);

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 0.3s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

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

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

a { color: var(--accent-blue); text-decoration: none; transition: color var(--duration) var(--ease); }
a:hover { color: #7fb0ff; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ---------- Utility ---------- */
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

.text-gradient-blue  { background: var(--gradient-blue);  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text-gradient-gold  { background: var(--gradient-gold);  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text-gradient-green { background: var(--gradient-green); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 100px; font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.badge--blue  { background: rgba(79,142,247,0.15); color: var(--accent-blue); }
.badge--gold  { background: rgba(245,166,35,0.15); color: var(--accent-gold); }
.badge--green { background: rgba(0,212,161,0.15); color: var(--accent-green); }
.badge--red   { background: rgba(239,68,68,0.15); color: var(--accent-red); }

/* ---------- Glass Card ---------- */
.glass-card {
  background: var(--gradient-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-md);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), border-color var(--duration) var(--ease);
}
.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255,255,255,0.14);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 600;
  border: none; transition: all var(--duration) var(--ease); position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0; opacity: 0;
  background: rgba(255,255,255,0.1); transition: opacity var(--duration) var(--ease);
}
.btn:hover::after { opacity: 1; }

.btn-primary {
  background: var(--gradient-blue); color: #fff;
  box-shadow: 0 4px 15px var(--accent-blue-glow);
}
.btn-primary:hover { box-shadow: 0 6px 25px var(--accent-blue-glow); transform: translateY(-2px); }

.btn-secondary {
  background: transparent; color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.15);
}
.btn-secondary:hover { border-color: var(--accent-blue); color: var(--accent-blue); }

.btn-gold {
  background: var(--gradient-gold); color: #1a1a2e;
  box-shadow: 0 4px 15px var(--accent-gold-glow);
}

.btn-green {
  background: var(--gradient-green); color: #0a0e1a;
  box-shadow: 0 4px 15px var(--accent-green-glow);
}

.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; height: var(--nav-height); z-index: 1000;
  display: flex; align-items: center;
  background: rgba(10,14,26,0.80); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--duration) var(--ease);
}
.navbar.scrolled { background: rgba(10,14,26,0.95); }

.navbar .container {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
}

.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Space Grotesk', sans-serif; font-size: 1.4rem; font-weight: 700;
  color: var(--text-primary);
}
.nav-brand .brand-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--gradient-blue); display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}

.nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-links a {
  padding: 8px 16px; border-radius: var(--radius-sm); color: var(--text-secondary);
  font-size: 0.9rem; font-weight: 500; transition: all var(--duration) var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); background: rgba(255,255,255,0.06); }

.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-wallet {
  display: flex; align-items: center; gap: 8px; padding: 8px 18px;
  border-radius: var(--radius-sm); background: rgba(79,142,247,0.1); border: 1px solid rgba(79,142,247,0.25);
  color: var(--accent-blue); font-size: 0.85rem; font-weight: 600; cursor: pointer;
  transition: all var(--duration) var(--ease);
}
.nav-wallet:hover { background: rgba(79,142,247,0.18); }
.wallet-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-green); animation: pulse-dot 2s infinite; }

/* Mobile toggle */
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all 0.3s; }

/* ---------- Footer ---------- */
.footer {
  padding: 60px 0 30px; border-top: 1px solid rgba(255,255,255,0.06);
  background: linear-gradient(180deg, var(--bg-primary), #060810);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 12px; line-height: 1.7; }
.footer-col h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-secondary); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--text-muted); font-size: 0.9rem; padding: 4px 0; transition: color 0.2s; }
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.06);
  color: var(--text-muted); font-size: 0.82rem;
}
.footer-socials { display: flex; gap: 16px; }
.footer-socials a { color: var(--text-muted); font-size: 1.1rem; }
.footer-socials a:hover { color: var(--accent-blue); }

/* ---------- Animations ---------- */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.animate-fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.animate-fade-up.visible { opacity: 1; transform: translateY(0); }

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ---------- Modal Base ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0,0,0,0.65); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.3s var(--ease);
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--bg-secondary); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-lg);
  padding: 32px; max-width: 520px; width: 90%; max-height: 85vh; overflow-y: auto;
  transform: scale(0.95) translateY(10px); transition: transform 0.3s var(--ease);
}
.modal-overlay.active .modal { transform: scale(1) translateY(0); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.modal-header h3 { font-size: 1.3rem; }
.modal-close {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.05); color: var(--text-secondary); font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: all 0.2s;
}
.modal-close:hover { background: rgba(239,68,68,0.15); color: var(--accent-red); border-color: rgba(239,68,68,0.3); }

/* ---------- Form Inputs ---------- */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 6px; font-weight: 500; }
.form-input {
  width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 0.95rem;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-primary); transition: border-color 0.2s, box-shadow 0.2s; outline: none;
}
.form-input:focus { border-color: var(--accent-blue); box-shadow: 0 0 0 3px var(--accent-blue-glow); }
select.form-input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }

/* ---------- Progress Bar ---------- */
.progress-bar {
  width: 100%; height: 8px; border-radius: 4px; background: rgba(255,255,255,0.08); overflow: hidden;
}
.progress-fill {
  height: 100%; border-radius: 4px; transition: width 1s var(--ease);
  background: var(--gradient-blue);
}
.progress-fill--gold  { background: var(--gradient-gold); }
.progress-fill--green { background: var(--gradient-green); }

/* ---------- Tooltip ---------- */
[data-tooltip] { position: relative; }
[data-tooltip]::after {
  content: attr(data-tooltip); position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%);
  padding: 6px 12px; border-radius: 6px; background: var(--bg-secondary); border: 1px solid var(--bg-glass-border);
  font-size: 0.78rem; color: var(--text-secondary); white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
[data-tooltip]:hover::after { opacity: 1; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { 
    position: fixed; top: var(--nav-height); left: 0; right: 0;
    flex-direction: column; background: rgba(10,14,26,0.97); padding: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transform: translateY(-100%); opacity: 0; pointer-events: none;
    transition: all 0.3s var(--ease);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-toggle { display: flex; }
  .section { padding: 60px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; }
}