/* M-VTU Unified CSS Framework */
/* Modern Glass Morphism Design System */

:root {
  /* Color Palette */
  --bg: #03040a;
  --accent: #3fffd2;
  --accent2: #9f7bff;
  --accent-gradient: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  --accent-gradient-reverse: linear-gradient(135deg, var(--accent2) 0%, var(--accent) 100%);
  --glass: rgba(255, 255, 255, 0.06);
  --glass-strong: rgba(255, 255, 255, 0.08);
  --glass-light: rgba(255, 255, 255, 0.04);
  --text: #e8f3f5;
  --muted: #9aa8b6;
  --success: #3fffd2;
  --error: #ff7070;
  --warning: #ffa500;
  
  /* Shadows */
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1), 0 0 40px rgba(63, 255, 210, 0.05);
  --shadow-button: 0 8px 25px rgba(63, 255, 210, 0.3);
  --shadow-button-hover: 0 12px 35px rgba(63, 255, 210, 0.4);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s ease;
  --transition-slow: 0.6s ease;
}

/* Global Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', system-ui, -apple-system, Arial, sans-serif;
  background: radial-gradient(circle at top left, #0a1022 0%, var(--bg) 100%);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  line-height: 1.6;
  color: var(--muted);
}

.text-accent { color: var(--accent); }
.text-accent2 { color: var(--accent2); }
.text-muted { color: var(--muted); }
.text-center { text-align: center; }

/* Glass Morphism Components */
.glass {
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 24px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glass);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.glass-strong {
  background: var(--glass-strong);
}

.glass-light {
  background: var(--glass-light);
/* Payment Method Selection */
.payment-methods {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.payment-option {
  flex: 1;
}

.payment-option input[type="radio"] {
  display: none;
}

.payment-label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px;
  border-radius: 12px;
  background: var(--glass-light);
  border: 2px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: all var(--transition-smooth);
  text-align: center;
}

.payment-label:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(63, 255, 210, 0.3);
}

.payment-option input[type="radio"]:checked + .payment-label {
  background: var(--accent-gradient);
  color: #03040a;
  border-color: var(--accent);
  box-shadow: var(--shadow-button);
}

.payment-icon {
  font-size: 20px;
}

.payment-text {
  font-weight: 600;
  font-size: 15px;
}

/* Saved Cards Display */
.saved-cards-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.saved-card-item {
  position: relative;
}

.saved-card-item input[type="radio"] {
  display: none;
}

.saved-card-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-radius: 12px;
  background: var(--glass-light);
  border: 2px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.saved-card-label:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(63, 255, 210, 0.3);
}

.saved-card-item input[type="radio"]:checked + .saved-card-label {
  background: rgba(63, 255, 210, 0.1);
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(63, 255, 210, 0.2);
}

.card-info {
  flex: 1;
}

.card-number {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.card-details {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 14px;
  color: var(--muted);
}

.card-brand {
  font-weight: 600;
  text-transform: uppercase;
}

.card-expiry {
  font-weight: 500;
}

.default-badge {
  background: var(--accent);
  color: #03040a;
  padding: 4px 8px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Button Loading State */
.btn-loading {
  display: none;
}

.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn[disabled] .btn-text {
  display: none;
}

.btn[disabled] .btn-loading {
  display: inline;
}

/* Enhanced section spacing for better visual structure */
section {
  margin-bottom: 6rem;
  padding: 5rem 0;
}

section:first-of-type {
  padding-top: 10rem;
}

section:last-child {
  margin-bottom: 8rem;
}

section#why {
  margin-bottom: 8rem;
  padding: 6rem 0;
}

section#how {
  margin-bottom: 8rem;
  padding: 6rem 0;
}

section#testimonials {
  margin-bottom: 8rem;
  padding: 6rem 0;
}
}

/* Header Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: rgba(3, 4, 10, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  z-index: 1000;
}

.brand {
  font-weight: 700;
  font-size: 20px;
  color: var(--accent);
  text-decoration: none;
}

.menu-toggle {
  display: none;
  color: var(--accent);
  font-size: 26px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background var(--transition-smooth);
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

nav {
  display: flex;
  gap: 18px;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-smooth);
}

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

nav a.active {
  color: var(--accent);
}

/* Mobile Navigation */
@media (max-width: 780px) {
  .menu-toggle {
    display: block;
  }
  
  nav {
    position: fixed;
    right: -100%;
    top: 0;
    height: 100vh;
    width: 280px;
    background: rgba(3, 4, 10, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 25px;
    transition: right var(--transition-smooth);
    z-index: 999;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  nav.active {
    right: 0;
  }
  
  nav a {
    font-size: 18px;
    padding: 15px 20px;
    border-radius: 8px;
    transition: all var(--transition-smooth);
    width: 80%;
    text-align: center;
  }
  
  nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent);
  }
}

@media (max-width: 480px) {
  nav {
    width: 85%;
  }
}

/* Form Components */
.form-card {
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 32px 28px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glass);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--accent);
  font-size: 16px;
}

input, select, textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(10px);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(63, 255, 210, 0.2);
  background: rgba(255, 255, 255, 0.12);
}

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

/* Button Components */
.btn {
  display: inline-block;
  padding: 14px 24px;
  border: none;
  border-radius: 12px;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #03040a;
  box-shadow: var(--shadow-button);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
  background: var(--accent-gradient-reverse);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
}

.btn-primary:hover::before {
  transform: translateX(100%);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--accent);
}

.btn-full {
  width: 100%;
}

/* Tab Components */
.tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.tab {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.12);
  padding: 14px 24px;
  border-radius: 12px;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition-smooth);
  font-weight: 600;
  min-width: 120px;
  text-align: center;
}

.tab:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(63, 255, 210, 0.3);
  color: var(--accent);
  transform: translateY(-2px);
}

.tab.active {
  background: var(--accent-gradient);
  color: #03040a;
  font-weight: 700;
  box-shadow: var(--shadow-button);
  border-color: transparent;
}

/* Message Components */
.message {
  padding: 12px 16px;
  border-radius: 8px;
  margin: 16px 0;
  text-align: center;
  font-weight: 600;
}

.message.error {
  background: rgba(255, 112, 112, 0.1);
  border: 1px solid rgba(255, 112, 112, 0.3);
  color: var(--error);
}

.message.success {
  background: rgba(63, 255, 210, 0.1);
  border: 1px solid rgba(63, 255, 210, 0.3);
  color: var(--success);
}

/* Table Components */
.table-container {
  overflow-x: auto;
  margin-top: 20px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

th, td {
  padding: 16px 14px;
  text-align: left;
  font-size: 15px;
}

th {
  color: var(--accent2);
  border-bottom: 2px solid rgba(63, 255, 210, 0.2);
  background: rgba(255, 255, 255, 0.02);
  font-weight: 600;
}

td {
  color: var(--text);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition-smooth);
}

td:hover {
  background: rgba(255, 255, 255, 0.03);
}

/* Status Indicators */
.status-success {
  color: var(--success);
  font-weight: 600;
}

.status-failed {
  color: var(--error);
  font-weight: 600;
}

.status-pending {
  color: var(--warning);
  font-weight: 600;
}

/* Card Components */
.card {
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 24px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glass);
  transition: all var(--transition-smooth);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(63, 255, 210, 0.15);
}

.card-header {
  margin-bottom: 20px;
}

.card-title {
  color: var(--accent2);
  margin-bottom: 8px;
}

.card-value {
  font-size: 2rem;
  color: var(--accent);
  font-weight: 700;
  text-shadow: 0 0 20px rgba(63, 255, 210, 0.3);
}

/* Grid System */
.grid {
  display: grid;
  gap: 20px;
}

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

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

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.p-0 { padding: 0; }
.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Aurora Background Effect */
.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(800px 600px at 20% 20%, rgba(63, 255, 210, 0.07), transparent 40%),
    radial-gradient(600px 500px at 80% 60%, rgba(159, 123, 255, 0.07), transparent 40%);
  mix-blend-mode: screen;
  animation: auroraMove 18s ease-in-out infinite alternate;
  filter: blur(50px);
}

@keyframes auroraMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-30px, 30px); }
}

/* Floating Action Button */
.fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #050d15;
  font-size: 22px;
  box-shadow: 0 10px 30px rgba(63, 255, 210, 0.14);
  cursor: pointer;
  z-index: 1000;
  transition: all var(--transition-smooth);
}

.fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(63, 255, 210, 0.2);
}

/* Responsive Design */
@media (max-width: 1200px) {
  main {
    max-width: 1000px;
  }
}

@media (max-width: 768px) {
  main {
    padding: 120px 15px 60px;
  }
  
  .form-card {
    padding: 28px 20px;
  }
  
  .tabs {
    gap: 8px;
  }
  
  .tab {
    padding: 12px 20px;
    min-width: 100px;
    font-size: 14px;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }
}

@media (max-width: 480px) {
  main {
    padding: 100px 12px 60px;
  }
  
  .form-card {
    padding: 24px 16px;
  }
  
  .tabs {
    gap: 6px;
  }
  
  .tab {
    padding: 10px 16px;
    font-size: 13px;
    min-width: 90px;
  }
  
  input, select, textarea {
    padding: 12px 14px;
    font-size: 15px;
  }
  
  .btn {
    padding: 14px;
    font-size: 15px;
  }
}

@media (max-width: 375px) {
  main {
    padding: 90px 10px 50px;
  }
  
  header {
    padding: 12px 16px;
  }
  
  .brand {
    font-size: 18px;
  }
  
  .form-card {
    padding: 20px 12px;
  }
  
  .tabs {
    gap: 4px;
  }
  
  .tab {
    padding: 8px 12px;
    font-size: 12px;
    min-width: 80px;
  }
  
  input, select, textarea {
    padding: 10px 12px;
    font-size: 14px;
  }
  
  .btn {
    padding: 12px;
    font-size: 14px;
  }
}