/* ========================================
   SHELFIE - Main Styles
   ======================================== */

/* ----------------------------------------
   1. Variables & Theme
   ---------------------------------------- */
:root {
  /* Branding Palette */
  --mint-cream: #ecfef7;
  --tropical-mint: #67fac1;
  --bright-lavender: #cc84eb;
  --dark-amethyst: #480355;
  --midnight-violet: #210127;
  --orange-brand: #fd7e14;
  --red-warn: #ff4757;

  /* Semantic Mapping */
  --bg-dark: var(--midnight-violet);
  --bg-darker: #150019;
  --primary-color: var(--bright-lavender);
  --primary-hover: #b06cd0;
  --secondary-color: var(--tropical-mint);
  --accent-color: var(--mint-cream);
  --warn-color: var(--red-warn);
  --text-main: var(--mint-cream);
  --text-muted: rgba(236, 254, 247, 0.6);

  /* Glass Effects & Borders */
  --glass-bg: rgba(72, 3, 85, 0.4);
  --glass-border: rgba(204, 132, 235, 0.2);
  --glass-highlight: rgba(103, 250, 193, 0.15);
  --card-bg: rgba(72, 3, 85, 0.5);
  
  /* Dimensions & Spacing */
  --border-radius-sm: 12px;
  --border-radius-md: 24px;
  --border-radius-lg: 40px;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--bright-lavender) 0%, #9d4edd 100%);
  --gradient-accent: linear-gradient(135deg, var(--tropical-mint) 0%, #4cc9f0 100%);
  --gradient-warn: linear-gradient(135deg, var(--warn-color) 0%, var(--dark-amethyst) 100%);
  --gradient-orange: linear-gradient(135deg, var(--orange-brand) 0%, #d35400 100%);
  --gradient-text: linear-gradient(90deg, var(--tropical-mint), var(--bright-lavender));

  /* Bootstrap Overrides */
  --bs-body-bg: var(--bg-dark);
  --bs-body-color: var(--text-main);
  --bs-card-bg: var(--card-bg);
  --bs-card-border-color: var(--glass-border);
  --bs-border-color: var(--glass-border);
  --bs-dropdown-bg: rgba(33, 1, 39, 0.95);
  --bs-dropdown-border-color: var(--glass-border);
  --bs-dropdown-link-color: var(--text-main);
  --bs-dropdown-link-hover-bg: var(--glass-highlight);
  
  --font-main: 'Outfit', sans-serif;
}

[data-bs-theme="dark"] {
  --bs-body-bg: var(--bg-dark);
  --bs-body-color: var(--text-main);
  --bs-card-bg: var(--card-bg);
  --bs-card-border-color: var(--glass-border);
}

/* ----------------------------------------
   2. Base & Reset
   ---------------------------------------- */
body {
  background-color: #7d369c;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.33'/%3E%3C/svg%3E"), 
                    radial-gradient(circle, rgba(125, 54, 156, 1) 0%, rgba(68, 13, 77, 1) 51%, rgba(29, 3, 33, 1) 100%);
  background-blend-mode: overlay, normal;
  background-attachment: fixed;
  font-family: var(--font-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  opacity: 1;
}

.main-content {
  flex: 1;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.02em;
}

a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--primary-hover);
  text-shadow: 0 0 15px rgba(204, 132, 235, 0.6);
}

/* ----------------------------------------
   3. Layout Components
   ---------------------------------------- */
/* Navbar */
.navbar {
  background-color: rgba(5, 5, 20, 0.6) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.75rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -1px;
}

/* ----------------------------------------
   4. UI Components
   ---------------------------------------- */
/* Cards */
.card {
  background-color: var(--card-bg) !important;
  background: var(--card-bg) !important;
  border: 1px solid rgba(204, 132, 235, 0.3) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  border-radius: var(--border-radius-md);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--tropical-mint), var(--primary-color), var(--tropical-mint));
  opacity: 0.7;
}

.card:hover {
  box-shadow: 0 10px 40px rgba(72, 3, 85, 0.4);
  border-color: var(--secondary-color) !important;
}

.card-header {
  background-color: transparent;
  border-bottom: 1px solid var(--glass-border);
  font-weight: 600;
  color: #fff;
}

.card-footer {
  background-color: transparent;
  border-top: 1px solid var(--glass-border);
}

/* Forms */
.form-control, .form-select, .input-group-text {
  background-color: rgba(20, 24, 33, 0.6);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  border-radius: var(--border-radius-sm);
  backdrop-filter: blur(8px);
}

.form-control:focus, .form-select:focus {
  background-color: rgba(30, 35, 45, 0.8);
  border-color: var(--primary-color);
  color: var(--text-main);
  box-shadow: 0 0 0 4px rgba(212, 153, 185, 0.2);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.input-group-text {
  background-color: rgba(30, 35, 45, 0.4);
  color: var(--text-muted);
}

/* Buttons */
.btn {
  border-radius: 50px;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 0.6rem 1.5rem;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

/* Button Variants */
.btn-primary, .btn-outline-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(204, 132, 235, 0.3);
  border: 1px solid transparent;
}
.btn-primary:hover, .btn-outline-primary:hover {
  background: linear-gradient(135deg, #b06cd0 0%, var(--bright-lavender) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(204, 132, 235, 0.5);
  color: white;
}

.btn-secondary, .btn-outline-secondary, .btn-mint {
  background: var(--gradient-accent);
  color: var(--midnight-violet);
  box-shadow: 0 4px 15px rgba(103, 250, 193, 0.3);
}
.btn-secondary:hover, .btn-outline-secondary:hover, .btn-mint:hover {
  background: linear-gradient(135deg, #4db6ac 0%, var(--tropical-mint) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(103, 250, 193, 0.5);
  color: var(--midnight-violet);
}

.btn-danger, .btn-warn {
  background: var(--gradient-warn);
  color: white;
  box-shadow: 0 4px 15px rgba(255, 71, 87, 0.3);
}
.btn-danger:hover, .btn-warn:hover {
  background: linear-gradient(135deg, #d63031 0%, var(--warn-color) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 71, 87, 0.5);
  color: white;
}

/* Orange/Podcasts */
.bg-orange { background-color: var(--orange-brand) !important; color: white; }
.text-orange { color: var(--orange-brand) !important; }
.text-bg-orange { background-color: var(--orange-brand) !important; color: white !important; }

.btn-outline-orange {
  background: var(--gradient-orange);
  color: white;
  box-shadow: 0 4px 15px rgba(253, 126, 20, 0.3);
  border: 1px solid transparent;
}
.btn-outline-orange:hover, .btn-check:checked+.btn-outline-orange {
  background: linear-gradient(135deg, #d35400 0%, var(--orange-brand) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(253, 126, 20, 0.5);
  color: white;
  border: 1px solid transparent;
}

/* Success alias */
.btn-success, .btn-outline-success {
    background: var(--gradient-accent);
    color: var(--midnight-violet);
    box-shadow: 0 4px 15px rgba(103, 250, 193, 0.3);
}
.btn-success:hover, .btn-outline-success:hover {
    background: linear-gradient(135deg, #4db6ac 0%, var(--tropical-mint) 100%);
    color: var(--midnight-violet);
}

/* Avatars */
.avatar-placeholder, .avatar-placeholder-lg {
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  text-transform: uppercase;
  color: white;
}
.avatar-placeholder { width: 32px; height: 32px; font-size: 0.875rem; }
.avatar-placeholder-lg { width: 80px; height: 80px; font-size: 2rem; }
.avatar-placeholder-lg-sm { width: 56px; height: 56px; font-size: 1.5rem; border-radius: 50%; background: linear-gradient(135deg, var(--primary-color), #8b5cf6); display: flex; align-items: center; justify-content: center; font-weight: 600; text-transform: uppercase; color: white; }
.avatar-placeholder-sm { width: 48px; height: 48px; font-size: 1.25rem; border-radius: 50%; background: linear-gradient(135deg, var(--primary-color), #8b5cf6); display: flex; align-items: center; justify-content: center; font-weight: 600; text-transform: uppercase; color: white; }
.avatar-placeholder-xs { width: 24px; height: 24px; font-size: 0.75rem; border-radius: 50%; background: linear-gradient(135deg, var(--primary-color), #8b5cf6); display: flex; align-items: center; justify-content: center; font-weight: 600; text-transform: uppercase; color: white; }

/* ----------------------------------------
   5. Feature Specific
   ---------------------------------------- */
/* Landing */
.landing-hero {
  padding: 4rem 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
}
.min-vh-75 { min-height: 75vh; }
.category-card { transition: transform 0.3s ease, border-color 0.3s ease; }
.category-card:hover { transform: translateY(-5px); border-color: var(--primary-color) !important; }
.categories-showcase { animation: float 6s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Friends System */
.friend-card {
  background-color: var(--card-bg);
  border-color: var(--glass-border) !important;
  transition: all 0.2s ease;
}
.friend-card:hover { border-color: var(--primary-color) !important; background-color: var(--glass-highlight); }
.request-item { transition: all 0.2s ease; }
.request-item:hover { background-color: var(--glass-highlight) !important; }
.blocked-item:hover { background-color: rgba(239, 68, 68, 0.1) !important; }
.nav-tabs .nav-link {
  color: var(--text-muted);
  border: none;
  border-bottom: 2px solid transparent;
}
.nav-tabs .nav-link.active {
  color: var(--primary-color);
  background-color: transparent;
  border-color: var(--primary-color);
}
.nav-link.active.bg-primary { background: var(--gradient-primary) !important; }
.friendship-actions .btn { min-width: 140px; }
.friendship-actions .btn-group .btn { min-width: auto; }

/* Shelf Items (Redesigned) */
.shelf-item-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  background-color: var(--card-bg) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  backdrop-filter: blur(10px);
}
.shelf-item-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
  border-color: var(--primary-color) !important;
}
.shelf-item-image {
  position: relative;
  width: 100%;
  aspect-ratio: 1/1;
  overflow: hidden;
  background-color: rgba(255,255,255,0.05);
}
.shelf-item-card.portrait .shelf-item-image { aspect-ratio: 2/3; }
.shelf-item-image img {
  width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease;
}
.shelf-item-card:hover .shelf-item-image img { transform: scale(1.05); }

.shelf-item-rating-badge {
  position: absolute; top: 10px; right: 10px;
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.9rem;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  z-index: 5; color: white;
  border: 2px solid rgba(255,255,255,0.1);
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.shelf-item-content { flex: 1; padding: 1rem; display: flex; flex-direction: column; gap: 0.25rem; }
.card-title { font-weight: 700; font-size: 1.1rem; color: #fff; margin-bottom: 0.25rem; }

/* Placeholder Buttons */
.unrated-placeholder {
  margin-top: auto; padding: 0.75rem; background: rgba(255,255,255,0.05);
  border-radius: 12px; cursor: pointer; border: 1px dashed rgba(255,255,255,0.2);
  transition: all 0.2s; text-align: center;
}
.unrated-placeholder:hover {
  background: rgba(255,255,255,0.1); border-color: var(--primary-color);
  transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* Actions Container */
.shelf-item-actions {
  display: flex; padding: 0.75rem; gap: 0.5rem;
  background: rgba(0,0,0,0.2); border-top: 1px solid var(--glass-border);
}

/* Action Buttons */
.shelf-item-action-btn {
  flex: 1; border: none; border-radius: 50px; padding: 0.5rem 1rem;
  font-size: 0.85rem; font-weight: 600; display: flex; align-items: center; justify-content: center;
  gap: 0.4rem; transition: all 0.2s ease; cursor: pointer; text-decoration: none;
}
.shelf-item-action-btn.edit {
  background: linear-gradient(135deg, rgba(103, 250, 193, 0.1) 0%, rgba(77, 182, 172, 0.1) 100%);
  color: var(--tropical-mint); border: 1px solid rgba(103, 250, 193, 0.3);
}
.shelf-item-action-btn.edit:hover {
  background: var(--tropical-mint); color: var(--midnight-violet);
  box-shadow: 0 0 15px rgba(103, 250, 193, 0.4); border-color: var(--tropical-mint);
}
.shelf-item-action-btn.delete {
  background: linear-gradient(135deg, rgba(255, 71, 87, 0.1) 0%, rgba(214, 48, 49, 0.1) 100%);
  color: #ff6b81; border: 1px solid rgba(255, 71, 87, 0.3);
}
.shelf-item-action-btn.delete:hover {
  background: var(--warn-color); color: white;
  box-shadow: 0 0 15px rgba(255, 71, 87, 0.4); border-color: var(--warn-color);
}

/* Shelf Horizontal Cards */
.shelf-card-horizontal {
  background-color: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: all 0.3s ease;
  backdrop-filter: blur(12px);
  display: flex; flex-direction: column;
}
.shelf-card-horizontal:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color) !important;
  box-shadow: 0 10px 40px rgba(72, 3, 85, 0.4);
}
.shelf-preview-horizontal, .shelf-preview-dashboard, .shelf-preview-post {
  position: relative; background-color: rgba(0, 0, 0, 0.2); overflow: hidden;
}
.shelf-preview-horizontal { height: 160px; }
.shelf-preview-dashboard { height: 140px; border-radius: var(--border-radius-sm); }
.shelf-preview-post { height: 200px; border-radius: var(--border-radius-sm); }

.shelf-preview-row { display: flex; height: 100%; width: 100%; }
.shelf-preview-thumb {
  flex: 1; background-size: cover; background-position: center;
  border-right: 1px solid rgba(0, 0, 0, 0.1); transition: all 0.3s ease; min-width: 0;
}
.shelf-preview-thumb:last-child { border-right: none; }
.shelf-preview-thumb:hover { flex: 1.5; filter: brightness(1.1); }
.shelf-preview-thumb-empty {
  flex: 1; background-color: rgba(255, 255, 255, 0.03);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255, 255, 255, 0.1); font-size: 1.5rem;
  border-right: 1px solid rgba(0, 0, 0, 0.1);
}
.shelf-category-badge {
  position: absolute; top: 12px; left: 12px; z-index: 10;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  font-weight: 600; letter-spacing: 0.5px; backdrop-filter: blur(4px);
}
.shelf-private-badge {
  position: absolute; top: 12px; right: 12px; z-index: 10;
  width: 28px; height: 28px; border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.6) !important;
  display: flex; align-items: center; justify-content: center;
}

/* Rating Color Scales */
.rating-bg-1 { background-color: #ff3b30; }
.rating-bg-2 { background-color: #ff5e3a; }
.rating-bg-3 { background-color: #ff8c42; }
.rating-bg-4 { background-color: #ffae42; }
.rating-bg-5 { background-color: #ffcc00; color: black; }
.rating-bg-6 { background-color: #d4e157; color: black; }
.rating-bg-7 { background-color: #9ccc65; color: black; }
.rating-bg-8 { background-color: #66bb6a; }
.rating-bg-9 { background-color: #43a047; }
.rating-bg-10 { background-color: #2e7d32; }

.rating-outline-1 { border-color: #ff3b30; color: #ff3b30; }
.rating-outline-1:hover { background-color: #ff3b30; color: white; }
.rating-outline-10 { border-color: #2e7d32; color: #2e7d32; }
.rating-outline-10:hover { background-color: #2e7d32; color: white; }

.rating-selector { display: flex; gap: 4px; flex-wrap: wrap; }
.rating-selector .rating-btn {
  width: 36px; height: 36px; padding: 0;
  display: flex; align-items: center; justify-content: center; font-weight: 600;
}