/* 
papers.support - Glassomorphic UI Framework
Created by Last App Standing
Enterprise-grade design system with glassmorphism effects
*/

:root {
  /* Primary Brand Colors - Academic Elegance */
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-200: #bae6fd;
  --primary-300: #7dd3fc;
  --primary-400: #38bdf8;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7;
  --primary-700: #0369a1;
  --primary-800: #075985;
  --primary-900: #0c4a6e;

  /* Secondary Accent Colors */
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  /* Neutral Grays */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Glass Effect Variables */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
  --glass-backdrop: blur(10px);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background: linear-gradient(135deg, 
    var(--primary-50) 0%, 
    var(--primary-100) 25%, 
    var(--primary-200) 50%, 
    var(--primary-300) 75%, 
    var(--primary-400) 100%
  );
  min-height: 100vh;
  color: var(--gray-800);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.3) 0%, transparent 50%);
  animation: backgroundShift 20s ease-in-out infinite;
  z-index: -1;
}

@keyframes backgroundShift {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* Glass Card Components */
.glass-card {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1), 
    rgba(255, 255, 255, 0.05)
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 
    0 8px 32px rgba(31, 38, 135, 0.37),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.1), 
    transparent
  );
  transition: left 0.5s;
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 12px 40px rgba(31, 38, 135, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.glass-card:hover::before {
  left: 100%;
}

/* Premium Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  font-size: 16px;
  line-height: 1.5;
}

.btn-primary-glass {
  background: linear-gradient(135deg, 
    var(--primary-500), 
    var(--primary-600)
  );
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  box-shadow: 0 4px 15px rgba(14, 165, 233, 0.4);
}

.btn-primary-glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.2), 
    transparent
  );
  transition: left 0.5s;
}

.btn-primary-glass:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.6);
}

.btn-primary-glass:hover::before {
  left: 100%;
}

.btn-secondary-glass {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1), 
    rgba(255, 255, 255, 0.05)
  );
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--gray-700);
}

.btn-success-glass {
  background: linear-gradient(135deg, 
    var(--accent-emerald), 
    #059669
  );
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

/* Navigation */
.navbar {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1), 
    rgba(255, 255, 255, 0.05)
  );
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-700);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}


/* Hero Section */
.hero-section {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.hero-content {
  max-width: 800px;
  padding: 3rem;
  animation: fadeInUp 0.8s ease-out;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, 
    var(--primary-700), 
    var(--primary-500), 
    var(--accent-purple)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: 2rem;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Document Type Cards */
.document-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.document-card {
  padding: 2rem;
  text-align: center;
  position: relative;
  animation: fadeInUp 0.6s ease-out;
  animation-fill-mode: both;
}

.document-card.premium {
  border: 2px solid var(--accent-purple);
  box-shadow: 
    0 8px 32px rgba(139, 92, 246, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.premium-badge {
  position: absolute;
  top: -10px;
  right: 20px;
  background: linear-gradient(135deg, var(--accent-purple), #7c3aed);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.document-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 0.5rem;
}

.document-card .price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-600);
  margin-bottom: 1rem;
}

.document-card .features {
  list-style: none;
  margin-bottom: 2rem;
  text-align: left;
}

.document-card .features li {
  padding: 0.5rem 0;
  color: var(--gray-600);
  position: relative;
  padding-left: 1.5rem;
}

.document-card .features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-emerald);
  font-weight: bold;
}

/* Forms */
.form-container {
  max-width: 600px;
  margin: 2rem auto;
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--gray-700);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  color: var(--gray-800);
  font-size: 16px;
  transition: all 0.3s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
  background: rgba(255, 255, 255, 0.15);
}

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

/* File Upload */
.file-upload {
  border: 2px dashed rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
  cursor: pointer;
}

.file-upload:hover {
  border-color: var(--primary-400);
  background: rgba(255, 255, 255, 0.1);
}

.file-upload.dragover {
  border-color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
}

/* Progress Indicator */
.progress-glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  height: 8px;
  overflow: hidden;
  position: relative;
  margin: 1rem 0;
}

.progress-fill {
  background: linear-gradient(90deg, 
    var(--primary-400), 
    var(--accent-purple)
  );
  height: 100%;
  border-radius: 50px;
  transition: width 0.3s ease;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.3), 
    transparent
  );
  animation: shimmer 2s infinite;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

/* Floating Shapes */
.floating-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
}

.shape {
  position: absolute;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1), 
    rgba(255, 255, 255, 0.05)
  );
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.shape-1 {
  width: 80px;
  height: 80px;
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.shape-2 {
  width: 120px;
  height: 120px;
  top: 60%;
  right: 10%;
  animation-delay: 2s;
}

.shape-3 {
  width: 60px;
  height: 60px;
  bottom: 20%;
  left: 50%;
  animation-delay: 4s;
}

/* Alerts */
.alert {
  padding: 1rem 1.5rem;
  border-radius: 12px;
  margin-bottom: 1rem;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.alert-success {
  background: linear-gradient(135deg, 
    rgba(16, 185, 129, 0.1), 
    rgba(16, 185, 129, 0.05)
  );
  color: #065f46;
  border-color: rgba(16, 185, 129, 0.3);
}

.alert-error {
  background: linear-gradient(135deg, 
    rgba(244, 63, 94, 0.1), 
    rgba(244, 63, 94, 0.05)
  );
  color: #991b1b;
  border-color: rgba(244, 63, 94, 0.3);
}

.alert-info {
  background: linear-gradient(135deg, 
    rgba(14, 165, 233, 0.1), 
    rgba(14, 165, 233, 0.05)
  );
  color: #1e40af;
  border-color: rgba(14, 165, 233, 0.3);
}

/* Footer */
.footer {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1), 
    rgba(255, 255, 255, 0.05)
  );
  backdrop-filter: blur(15px);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  padding: 2rem 0;
  margin-top: 4rem;
  text-align: center;
  color: var(--gray-600);
}

.footer-brand {
  font-weight: 700;
  color: var(--primary-700);
  margin-bottom: 0.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--gray-600);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--primary-600);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .document-grid {
    grid-template-columns: 1fr;
    padding: 1rem;
  }
  
  .glass-card {
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 480px) {
  .hero-content {
    padding: 2rem 1rem;
  }
  
  .form-container {
    padding: 1rem;
  }
  
  .document-card {
    padding: 1.5rem;
  }
}

/* Loading States */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

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

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 2rem; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -0.5rem;
}

.col {
  flex: 1;
  padding: 0 0.5rem;
}

.col-12 { flex: 0 0 100%; }
.col-6 { flex: 0 0 50%; }
.col-4 { flex: 0 0 33.333333%; }
.col-3 { flex: 0 0 25%; }

@media (max-width: 768px) {
  .col-6, .col-4, .col-3 {
    flex: 0 0 100%;
  }
}