/* =========================================================================
   PSTUD PREMIUM DESIGN SYSTEM
   ========================================================================= */

:root {
  --primary-amber: #f4b214;
  --primary-amber-dark: #d99a0a;
  --primary-midnight: #0f172a;
  --secondary-midnight: #1e293b;
  --bg-soft: #f8fafc;
  --text-dark: #334155;
  --text-muted: #64748b;
  
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  --card-shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.12);
  
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

body {
  font-family: 'Rubik', sans-serif;
  color: var(--text-dark);
  background-color: var(--bg-soft);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', serif;
  color: var(--primary-midnight);
}

/* =========================================================================
   UTILITIES
   ========================================================================= */

/* Glassmorphism */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-lg);
}

.glass-panel-dark {
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  border-radius: var(--radius-lg);
  color: #fff;
}

.glass-nav {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 4px 20px rgba(0,0,0,0.03);
}

/* Hover Animations */
.hover-lift {
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
}
.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
}

.hover-glow {
  transition: box-shadow 0.3s ease;
}
.hover-glow:hover {
  box-shadow: 0 0 20px rgba(244, 178, 20, 0.4);
}

/* Premium Cards */
.premium-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  border: none;
  overflow: hidden;
}

/* Gradients */
.bg-gradient-midnight {
  background: linear-gradient(135deg, var(--primary-midnight), var(--secondary-midnight));
}

.text-gradient-amber {
  background: linear-gradient(135deg, var(--primary-amber), #ffcb42);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn-premium-amber {
  background: linear-gradient(135deg, var(--primary-amber), var(--primary-amber-dark));
  color: #fff !important;
  border: none;
  border-radius: 30px;
  font-weight: 600;
  padding: 10px 24px;
  box-shadow: 0 4px 15px rgba(244, 178, 20, 0.3);
  transition: all 0.3s ease;
}
.btn-premium-amber:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(244, 178, 20, 0.5);
}

.btn-premium-dark {
  background: linear-gradient(135deg, var(--primary-midnight), var(--secondary-midnight));
  color: #fff !important;
  border: none;
  border-radius: 30px;
  font-weight: 600;
  padding: 10px 24px;
  box-shadow: 0 4px 15px rgba(15, 23, 42, 0.3);
  transition: all 0.3s ease;
}
.btn-premium-dark:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(15, 23, 42, 0.5);
}

/* Forms & Inputs */
.premium-input {
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  background-color: #f8fafc;
  transition: all 0.3s ease;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}
select.premium-input {
  height: 50px !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}
.premium-input:focus {
  background-color: #fff;
  border-color: var(--primary-amber);
  box-shadow: 0 0 0 3px rgba(244, 178, 20, 0.15);
  outline: none;
}

/* Overrides for existing elements */
.navbar-brand {
  font-family: 'Playfair Display', serif;
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: 1px;
}

header .navbar .nav-link.active {
  color: #fff !important;
  border-bottom: 2px solid var(--primary-amber);
  padding-bottom: calc(1.7rem - 2px);
}

/* Skeleton Loader Classes */
.skeleton-card {
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.skeleton-img {
  width: 100%;
  height: 220px;
  background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.5s infinite;
}

.skeleton-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.skeleton-title {
  height: 24px;
  width: 80%;
  background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.5s infinite;
  margin-bottom: 12px;
  border-radius: 4px;
}

.skeleton-text {
  height: 16px;
  background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.5s infinite;
  margin-bottom: 8px;
  border-radius: 4px;
}

.skeleton-text:last-child {
  width: 60%;
}

.skeleton-btn {
  height: 40px;
  width: 100px;
  background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.5s infinite;
  margin-top: auto;
  border-radius: 8px;
}

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