/* SkyLuxe Aero Studio - Base Styles & Global Utilities */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: #f8fafc;
  background-color: var(--bg-page);
  background-image: var(--bg-page-gradient);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a {
  color: var(--cyan-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--cyan-500);
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* Custom Aero Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-page);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-500);
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-2xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  max-width: var(--container-lg);
}

/* Glassmorphism & Surface Utilities */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.glass-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-normal);
}
.glass-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glass-bright);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-indigo);
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

/* Button Component System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1.2;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  color: #ffffff;
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.6);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
  border-color: var(--border-glass);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-accent {
  background: linear-gradient(135deg, var(--cyan-500) 0%, #0284c7 100%);
  color: #ffffff;
  box-shadow: var(--shadow-glow-cyan);
}
.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 25px rgba(6, 182, 212, 0.6);
}

.btn-call {
  background: linear-gradient(135deg, var(--call-orange) 0%, #ea580c 100%);
  color: #ffffff;
  box-shadow: var(--shadow-glow-orange);
  animation: pulseHotline 3s infinite;
}
.btn-call:hover {
  background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
  color: #ffffff;
  box-shadow: 0 8px 30px rgba(249, 115, 22, 0.7);
  transform: translateY(-1px);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  color: #f8fafc;
  border: 1px solid var(--border-glass);
}
.btn-glass:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-glass-bright);
}

.btn-outline {
  background: transparent;
  color: var(--primary-300);
  border-color: var(--primary-500);
}
.btn-outline:hover {
  background: var(--primary-500);
  color: #ffffff;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.8125rem;
}
.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.0625rem;
}
.btn-block {
  width: 100%;
}

@keyframes pulseHotline {
  0%, 100% { box-shadow: 0 0 20px rgba(249, 115, 22, 0.4); }
  50% { box-shadow: 0 0 35px rgba(249, 115, 22, 0.8); }
}

/* Badge Pill System */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge-primary {
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary-300);
  border: 1px solid rgba(99, 102, 241, 0.4);
}
.badge-accent {
  background: var(--cyan-light);
  color: var(--cyan-400);
  border: 1px solid rgba(6, 182, 212, 0.3);
}
.badge-success {
  background: var(--success-light);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.badge-warning {
  background: var(--warning-light);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.badge-dark {
  background: rgba(255, 255, 255, 0.06);
  color: var(--slate-300);
  border: 1px solid var(--border-glass);
}

/* Skeleton Loading Animation */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.03) 25%, rgba(255,255,255,0.08) 37%, rgba(255,255,255,0.03) 63%);
  background-size: 400% 100%;
  animation: skeletonLoading 1.4s ease infinite;
  border-radius: var(--radius-md);
}

@keyframes skeletonLoading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

/* Section Typography & Utilities */
.section-tag {
  color: var(--cyan-400);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--slate-400);
  font-size: 1.125rem;
  max-width: 680px;
  line-height: 1.6;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 0%, var(--cyan-400) 50%, var(--primary-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.main-content {
  flex: 1;
}

/* Form Shared Controls */
.form-group {
  margin-bottom: 1.25rem;
}
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate-300);
  margin-bottom: 0.5rem;
}
.form-control {
  width: 100%;
  padding: 0.85rem 1.15rem;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}
.form-control:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
  background: rgba(15, 23, 42, 0.9);
}
.form-control.is-invalid {
  border-color: var(--danger-500);
}
.invalid-feedback {
  color: var(--danger-500);
  font-size: 0.75rem;
  margin-top: 0.35rem;
}

.required {
  color: var(--accent-500);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.form-row.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 640px) {
  .form-row.cols-2 {
    grid-template-columns: 1fr;
  }
  .section-title {
    font-size: 1.85rem;
  }
}