/**
 * 13th.lol - Unified Stylesheet
 * Monochrome black & white frosted glass aesthetic
 */

/* =====================================================
   CUSTOM FONT
   ===================================================== */
@font-face {
  font-family: 'Airstrike';
  src: url('/assets/fonts/airstrike.ttf') format('truetype');
  font-display: swap;
}

/* =====================================================
   CSS VARIABLES
   ===================================================== */
:root {
  /* Colors */
  --color-bg: #000000;
  --color-bg-secondary: #0a0a0a;
  --color-surface: rgba(16, 16, 16, 0.8);
  --color-surface-hover: rgba(24, 24, 24, 0.9);
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-hover: rgba(255, 255, 255, 0.2);
  --color-text-primary: #ffffff;
  --color-text-secondary: #888888;
  --color-text-muted: #555555;
  --color-accent: #ffffff;
  
  /* Glass Effect */
  --glass-blur: 12px;
  --glass-bg: rgba(16, 16, 16, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(255, 255, 255, 0.1);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Poppins', var(--font-sans);
  --font-logo: 'Airstrike', var(--font-display);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* =====================================================
   RESET & BASE
   ===================================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Selection */
::selection {
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* =====================================================
   TYPOGRAPHY
   ===================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
}

/* =====================================================
   LAYOUT
   ===================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-sm { max-width: 640px; }
.container-md { max-width: 768px; }
.container-lg { max-width: 1024px; }
.container-xl { max-width: 1280px; }

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-content {
  flex: 1;
  padding: var(--spacing-2xl) 0;
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* =====================================================
   GLASS CARD
   ===================================================== */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.card-body {
  padding: var(--spacing-md) 0;
}

.card-footer {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-primary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--color-text-primary);
  color: var(--color-bg);
  border-color: var(--color-text-primary);
}

.btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-glow);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.btn-pill {
  border-radius: var(--radius-full);
}

.btn-icon {
  padding: 0.75rem;
  aspect-ratio: 1;
}

/* =====================================================
   FORMS
   ===================================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-text-primary);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-help {
  margin-top: var(--spacing-xs);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--spacing-md) 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--color-border);
}

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

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.navbar-brand {
  font-family: var(--font-logo);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  list-style: none;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  padding: var(--spacing-sm);
  flex-direction: column;
  gap: 4px;
  width: 32px;
  height: 32px;
}

.mobile-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: all 0.3s ease;
}

.navbar-link {
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* Mobile menu */
.navbar-toggle {
  display: none;
  padding: var(--spacing-sm);
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
}

@media (max-width: 768px) {
  .navbar-toggle { display: block; }
  
  .navbar-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.95);
    border-bottom: 1px solid var(--color-border);
    display: none;
  }
  
  .navbar-nav.open { display: flex; }
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-text {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  list-style: none;
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-text-primary);
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--spacing-2xl);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg canvas {
  width: 100%;
  height: 100%;
}

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

.hero-title {
  font-size: clamp(3rem, 12vw, 8rem);
  font-weight: 900;
  letter-spacing: 0.1em;
  text-shadow: 0 0 40px rgba(255, 255, 255, 0.3);
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-xl);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

/* =====================================================
   PAGE HEADER
   ===================================================== */
.page-header {
  padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
  text-align: center;
  background: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, transparent 100%);
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  margin-bottom: var(--spacing-sm);
}

.page-header p {
  max-width: 600px;
  margin: 0 auto;
}

/* =====================================================
   USER/BIO CARDS
   ===================================================== */
.user-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl);
  text-align: center;
}

.user-card:hover {
  border-color: rgba(255, 255, 255, 0.3);
}

.user-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-normal);
}

.user-card:hover .user-avatar {
  border-color: var(--color-text-primary);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.user-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.user-bio {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =====================================================
   LOADING SCREEN
   ===================================================== */
.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(8px);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.fade-out {
  opacity: 0;
  visibility: hidden;
}

.loading-text {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 4rem);
  font-weight: 700;
  color: var(--color-text-primary);
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-text-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* =====================================================
   CRYPTO SECTION
   ===================================================== */
.crypto-section {
  margin-top: var(--spacing-xl);
}

.crypto-icons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
}

.crypto-icon {
  width: 40px;
  height: 40px;
  cursor: pointer;
  opacity: 0.7;
  filter: grayscale(100%) contrast(150%) brightness(1.2);
  transition: all var(--transition-normal);
}

.crypto-icon:hover {
  opacity: 1;
  filter: none;
  transform: scale(1.1);
}

.wallet-display {
  position: relative;
  margin-top: var(--spacing-xl);
  height: 0;
  overflow: visible;
  transition: height 0.5s ease;
}

.wallet-display.show {
  height: 100px;
}

.wallet-field {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  text-align: center;
  opacity: 0;
  transform: scaleX(0);
  transform-origin: center;
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.wallet-field.active {
  opacity: 1;
  transform: scaleX(1);
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
}

.wallet-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-xs);
}

.wallet-address {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  word-break: break-all;
  user-select: all;
}

.wallet-address:hover {
  color: var(--color-text-primary);
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(255, 255, 255, 0.2); }
  50% { box-shadow: 0 0 40px rgba(255, 255, 255, 0.4); }
}

.animate-fade-in { animation: fadeIn 0.5s ease forwards; }
.animate-fade-in-up { animation: fadeInUp 0.5s ease forwards; }
.animate-fade-in-down { animation: fadeInDown 0.5s ease forwards; }
.animate-scale-in { animation: scaleIn 0.5s ease forwards; }
.animate-pulse { animation: pulse 2s ease infinite; }
.animate-glow { animation: glow 2s ease infinite; }

/* Animation delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* =====================================================
   UTILITY CLASSES
   ===================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }

.tracking-wide { letter-spacing: 0.05em; }
.tracking-wider { letter-spacing: 0.1em; }
.tracking-widest { letter-spacing: 0.15em; }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.hidden { display: none !important; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.z-10 { z-index: 10; }
.z-50 { z-index: 50; }
.z-100 { z-index: 100; }

.pointer-events-none { pointer-events: none; }
.cursor-pointer { cursor: pointer; }
.select-none { user-select: none; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* =====================================================
   RESPONSIVE VISIBILITY
   ===================================================== */
@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
}

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

/* =====================================================
   EMPTY/ERROR STATES
   ===================================================== */
.empty-state {
  padding: var(--spacing-2xl);
  text-align: center;
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  opacity: 0.3;
}

.empty-state-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.empty-state-text {
  color: var(--color-text-muted);
  max-width: 400px;
  margin: 0 auto var(--spacing-lg);
}