/* ============================================
   LikeAStar Design System v2.0
   Aurora UI + Glassmorphism + Mesh Gradients
   Light Theme
   ============================================ */

:root {
  /* === Color Palette === */
  --bg-deep:        #f8fafc;
  --bg-base:        #f1f5f9;
  --bg-elevated:    #ffffff;
  --bg-surface:     rgba(255, 255, 255, 0.7);

  /* Glass */
  --glass-bg:       rgba(255, 255, 255, 0.6);
  --glass-border:   rgba(0, 0, 0, 0.06);
  --glass-highlight: rgba(255, 255, 255, 0.8);
  --glass-blur:     20px;

  /* Accent Gradients */
  --accent-primary: linear-gradient(135deg, #a855f7, #6366f1, #06b6d4);
  --accent-warm:    linear-gradient(135deg, #f43f5e, #f97316, #eab308);
  --accent-cool:    linear-gradient(135deg, #06b6d4, #3b82f6, #8b5cf6);
  --accent-aurora:  linear-gradient(135deg, #a855f7 0%, #6366f1 25%, #06b6d4 50%, #10b981 75%, #a855f7 100%);

  /* Solid accents */
  --color-primary:  #a855f7;
  --color-cyan:     #06b6d4;
  --color-rose:     #f43f5e;
  --color-amber:    #f59e0b;
  --color-emerald:  #10b981;
  --color-blue:     #3b82f6;

  /* Text */
  --text-primary:   #1e293b;
  --text-secondary: #475569;
  --text-muted:     #94a3b8;
  --text-faint:     #cbd5e1;

  /* Typography */
  --font-sans: 'Inter', 'HarmonyOS Sans', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-2xl: 32px;

  /* Shadows */
  --shadow-sm:  0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.03);
  --shadow-md:  0 4px 6px rgba(0,0,0,0.04), 0 10px 15px rgba(0,0,0,0.03);
  --shadow-lg:  0 10px 25px rgba(0,0,0,0.06), 0 20px 48px rgba(0,0,0,0.04);
  --shadow-xl:  0 20px 50px rgba(0,0,0,0.08), 0 40px 80px rgba(0,0,0,0.05);
  --shadow-glow: 0 0 40px rgba(168, 85, 247, 0.08), 0 0 80px rgba(6, 182, 212, 0.04);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.03);

  /* Transitions */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration:  0.3s;
}

/* === Global Reset Enhancement === */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-family: var(--font-sans) !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  background: var(--bg-deep) !important;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Mesh gradient background overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%, rgba(168, 85, 247, 0.05) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 90% 80%, rgba(6, 182, 212, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(99, 102, 241, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* === Selection === */
::selection {
  background: rgba(168, 85, 247, 0.2);
  color: #1e293b;
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.25);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.4);
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }

p { line-height: 1.7; color: var(--text-secondary); }

a {
  color: var(--color-cyan);
  text-decoration: none;
  transition: color var(--duration) var(--ease-out);
}
a:hover { color: var(--color-primary); }

/* === Utility Classes === */
.gradient-text {
  background: var(--accent-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: all var(--duration) var(--ease-out);
}

.glass-card:hover {
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-2px);
}

/* Aurora border animation */
@keyframes aurora-border {
  0%, 100% { border-color: rgba(168, 85, 247, 0.2); }
  33% { border-color: rgba(6, 182, 212, 0.2); }
  66% { border-color: rgba(99, 102, 241, 0.2); }
}

/* Subtle float animation */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* Glow pulse */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(168, 85, 247, 0.08); }
  50% { box-shadow: 0 0 40px rgba(168, 85, 247, 0.12), 0 0 60px rgba(6, 182, 212, 0.06); }
}

/* Shimmer loading */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer {
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.6) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* === Buttons === */
.btn-primary,
.btn-sm.btn-edit,
button.btn-primary {
  background: var(--accent-primary) !important;
  color: #fff !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  padding: 12px 28px !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  cursor: pointer !important;
  transition: all var(--duration) var(--ease-out) !important;
  box-shadow: 0 4px 16px rgba(168, 85, 247, 0.2) !important;
  position: relative !important;
  overflow: hidden !important;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity var(--duration);
}

.btn-primary:hover::before { opacity: 1; }

.btn-primary:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 32px rgba(168, 85, 247, 0.3), 0 0 0 1px rgba(168, 85, 247, 0.2) !important;
}

.btn-sm.btn-edit {
  padding: 8px 18px !important;
  font-size: 13px !important;
  border-radius: var(--radius-sm) !important;
  background: rgba(99, 102, 241, 0.1) !important;
  color: #6366f1 !important;
  border: 1px solid rgba(99, 102, 241, 0.15) !important;
  box-shadow: none !important;
}

.btn-sm.btn-edit:hover {
  background: rgba(99, 102, 241, 0.18) !important;
  border-color: rgba(99, 102, 241, 0.3) !important;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.12) !important;
  transform: translateY(-1px) !important;
}

.btn-sm.btn-del {
  padding: 8px 18px !important;
  font-size: 13px !important;
  border-radius: var(--radius-sm) !important;
  background: rgba(244, 63, 94, 0.08) !important;
  color: #e11d48 !important;
  border: 1px solid rgba(244, 63, 94, 0.12) !important;
  box-shadow: none !important;
  cursor: pointer !important;
  transition: all var(--duration) var(--ease-out) !important;
}

.btn-sm.btn-del:hover {
  background: rgba(244, 63, 94, 0.15) !important;
  border-color: rgba(244, 63, 94, 0.25) !important;
  box-shadow: 0 4px 16px rgba(244, 63, 94, 0.1) !important;
  transform: translateY(-1px) !important;
}

/* === Badges === */
.badge {
  display: inline-flex !important;
  align-items: center;
  padding: 4px 12px !important;
  border-radius: 99px !important;
  font-size: 11px !important;
  font-weight: 600 !important;
  letter-spacing: 0.3px;
}

.badge-admin {
  background: rgba(244, 63, 94, 0.1) !important;
  color: #e11d48 !important;
  border: 1px solid rgba(244, 63, 94, 0.15) !important;
}

.badge-member {
  background: rgba(59, 130, 246, 0.1) !important;
  color: #2563eb !important;
  border: 1px solid rgba(59, 130, 246, 0.12) !important;
}

.badge-super {
  background: rgba(245, 158, 11, 0.1) !important;
  color: #d97706 !important;
  border: 1px solid rgba(245, 158, 11, 0.12) !important;
}

/* === Form Elements === */
.form-group input,
.form-group select,
.form-group textarea,
.sort-select {
  background: rgba(255, 255, 255, 0.8) !important;
  border: 1px solid rgba(0, 0, 0, 0.08) !important;
  border-radius: var(--radius-md) !important;
  color: var(--text-primary) !important;
  font-family: var(--font-sans) !important;
  transition: all var(--duration) var(--ease-out) !important;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.1), 0 0 20px rgba(168, 85, 247, 0.05) !important;
  outline: none !important;
}