/* ==========================================================================
   DPMatchReserve - Modern Dark Theme
   ========================================================================== */

/* CSS Custom Properties */
:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --bg-input: #0f0f14;
  
  --accent-primary: #00d4aa;
  --accent-primary-hover: #00e8bc;
  --accent-secondary: #6366f1;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-success: #22c55e;
  
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  
  --border-color: #2d2d3a;
  --border-focus: var(--accent-primary);
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --font-size-base: 16px;
  --line-height: 1.6;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(0, 212, 170, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: var(--line-height);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 var(--space-lg) 0;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: var(--space-xl) 0 var(--space-md) 0;
  color: var(--text-primary);
}

p {
  margin: 0 0 var(--space-md) 0;
}

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

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

strong {
  font-weight: 600;
}

em {
  font-style: italic;
  color: var(--text-secondary);
}

/* Layout */
.container {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.page-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
}

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

/* Card */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
}

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

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
}

/* Header */
.header {
  padding: var(--space-lg) 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

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

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--accent-primary);
}

/* Footer */
.footer {
  padding: var(--space-lg) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

.footer a {
  color: var(--text-secondary);
}

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

/* Form Elements */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
}

.form-group-inline:last-child {
  border-bottom: none;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.form-label-inline {
  color: var(--text-primary);
  margin-bottom: 0;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  font-family: var(--font-family);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.15);
}

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

.form-input-small {
  width: 120px;
}

/* Inline value layout - aligns input to the right like toggle switches */
.form-group-value {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
}

.form-group-value:last-child {
  border-bottom: none;
}

.form-group-value .form-label-inline {
  flex: 1;
}

.form-group-value .form-input-inline {
  width: 120px;
  text-align: right;
  padding: 8px 12px;
  font-size: 0.875rem;
  font-family: var(--font-mono);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  outline: none;
}

.form-group-value .form-input-inline:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.15);
}

.form-group-value .form-input-inline::placeholder {
  color: var(--text-tertiary);
}

.form-hint-inline {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  flex-basis: 80px;
  margin-left: var(--space-md);
  text-align: right;
  display: inline-block;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 28px;
  transition: all var(--transition-fast);
}

.toggle-slider::before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-tertiary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.toggle-switch input:checked + .toggle-slider {
  background-color: rgba(0, 212, 170, 0.2);
  border-color: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(24px);
  background-color: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
}

.toggle-switch input:focus + .toggle-slider {
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.15);
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
}

/* Radio Cards */
.server-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.server-option {
  position: relative;
}

.server-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.server-option label {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.server-option label:hover {
  border-color: var(--text-tertiary);
}

.server-option input[type="radio"]:checked + label {
  border-color: var(--accent-primary);
  background: rgba(0, 212, 170, 0.08);
}

.server-option input[type="radio"]:focus + label {
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.15);
}

.server-status-icon {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  display: inline-block;
}

.server-status-icon.available {
  background: var(--accent-success);
  box-shadow: 0 0 6px var(--accent-success);
}

.server-status-icon.offline {
  background: var(--text-tertiary);
}

.server-status-icon.reserved {
  background: var(--accent-danger);
  box-shadow: 0 0 6px var(--accent-danger);
}

.server-status-icon.pending {
  background: var(--accent-warning);
  box-shadow: 0 0 6px var(--accent-warning);
}

.server-status-icon.unknown {
  background: var(--text-tertiary);
}

.server-info {
  flex: 1;
}

.server-name {
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

.server-host {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-family);
  color: var(--bg-primary);
  background: var(--accent-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: var(--bg-primary);
}

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

.btn-secondary {
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--text-tertiary);
  box-shadow: none;
  color: var(--text-primary);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

/* Alert Boxes */
.alert {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.alert-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--accent-success);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--accent-danger);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent-warning);
}

.alert ul {
  margin: var(--space-sm) 0 0 0;
  padding-left: var(--space-lg);
}

.alert li {
  margin-bottom: var(--space-xs);
}

/* Credentials Display */
.credentials {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
}

.credential-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.credential-item:last-child {
  border-bottom: none;
}

.credential-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.credential-value {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent-primary);
  background: var(--bg-input);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
}

/* Info List */
.info-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg) 0;
}

.info-list li {
  padding: var(--space-xs) 0;
  margin: 0;
  line-height: 1.6;
}

.info-list li::before {
  display: none;
}

/* Divider */
.divider {
  height: 1px;
  background: var(--border-color);
  margin: var(--space-lg) 0;
}

/* reCAPTCHA */
.recaptcha-wrapper {
  display: flex;
  justify-content: center;
  margin: var(--space-xl) 0;
  padding: var(--space-md) 0;
}

/* Ensure reCAPTCHA widget is centered */
.g-recaptcha {
  display: inline-block;
}

/* Section Title */
.section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-md);
}

/* Responsive */
@media (max-width: 640px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  .card {
    padding: var(--space-md);
  }
  
  .server-option label {
    padding: var(--space-sm);
  }
  
  .btn {
    padding: 10px 20px;
  }
  
  .credential-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
}

/* Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-normal) ease forwards;
}

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

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

.mt-lg {
  margin-top: var(--space-lg);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

/* Debug Info */
.debug-info {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: rgba(99, 102, 241, 0.1);
  border: 1px dashed var(--accent-secondary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  text-align: center;
}

.debug-label {
  color: var(--text-secondary);
  margin-right: var(--space-sm);
}

.debug-info code {
  font-family: var(--font-mono);
  color: var(--accent-secondary);
  background: var(--bg-input);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.debug-ip {
  border-top: 1px dashed var(--accent-secondary) !important;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm) !important;
}

.debug-ip .credential-label {
  color: var(--accent-secondary);
}

.debug-ip code {
  font-family: var(--font-mono);
  color: var(--accent-secondary);
}

/* Current Value Display */
.cvar-current {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  margin-left: var(--space-sm);
}