/* ═══════════════════════════════════════════════
   eduHEY – Premium Style System
   ═══════════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
  /* Colors */
  --blue-50:  #EFF6FF;
  --blue-100: #DBEAFE;
  --blue-200: #BFDBFE;
  --blue-400: #60A5FA;
  --blue-500: #3B82F6;
  --blue-600: #2563EB;
  --blue-700: #1D4ED8;
  --blue-800: #1E40AF;

  --neutral-50:  #F8FAFC;
  --neutral-100: #F1F5F9;
  --neutral-200: #E2E8F0;
  --neutral-300: #CBD5E1;
  --neutral-400: #94A3B8;
  --neutral-500: #64748B;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1E293B;
  --neutral-900: #0F172A;

  --white: #FFFFFF;
  --danger: #EF4444;
  --danger-light: #FEE2E2;

  /* ── Semantic Theme Tokens (default: Okyanus / Light Blue) ── */
  --bg-app:         #F8FAFC;
  --bg-surface:     #FFFFFF;
  --bg-sidebar:     #FFFFFF;
  --bg-hover:       #F1F5F9;
  --border:         #E2E8F0;
  --text-primary:   #0F172A;
  --text-secondary: #64748B;
  --text-muted:     #94A3B8;
  --accent:         #2563EB;
  --accent-2:       #1D4ED8;
  --accent-light:   #EFF6FF;
  --accent-light-2: #DBEAFE;
  --accent-mid:     #60A5FA;
  --logo-hey:       #2563EB;
  --logo-hey-2:     #1D4ED8;
  --tag-color:      #2563EB;
  --tag-bg:         #EFF6FF;
  --badge-bg:       #2563EB;
  --nav-active-bg:  linear-gradient(135deg, #EFF6FF, rgba(219,234,254,0.5));
  --nav-active-color: #1D4ED8;
  --nav-active-bar: #2563EB;
  --chip-active-bg: linear-gradient(135deg, #2563EB, #1D4ED8);
  --follow-border:  #3B82F6;
  --follow-color:   #2563EB;
  --cta-bg:         linear-gradient(135deg, #2563EB, #1D4ED8);
  --cta-shadow:     rgba(37,99,235,0.35);
  --search-focus-glow: rgba(59,130,246,0.12);
  --search-focus-border: #60A5FA;
  --header-bg:      rgba(255,255,255,0.95);
  --accent-rgb:     37,99,235;
  --is-dark: 0;

  /* Header */
  --header-h: 68px;

  /* Sidebar widths */
  --sidebar-left-w:  220px;
  --sidebar-right-w: 290px;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;

  /* Radius */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 20px;
  --r-full: 999px;

  /* Shadow */
  --shadow-xs: 0 1px 2px rgba(0,0,0,.05);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.05);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12), 0 4px 8px rgba(0,0,0,.06);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.15);

  /* Transition */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ══════════════════════════════════════════════
   THEMES
══════════════════════════════════════════════ */

/* 2. Gece — Dark */
[data-theme="dark"] {
  --bg-app:         #0F172A;
  --bg-surface:     #1E293B;
  --bg-sidebar:     #1E293B;
  --bg-hover:       #263245;
  --border:         #334155;
  --text-primary:   #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted:     #64748B;
  --accent:         #60A5FA;
  --accent-2:       #3B82F6;
  --accent-light:   rgba(59,130,246,0.15);
  --accent-light-2: rgba(59,130,246,0.25);
  --accent-mid:     #93C5FD;
  --logo-hey:       #60A5FA;
  --logo-hey-2:     #3B82F6;
  --tag-color:      #93C5FD;
  --tag-bg:         rgba(59,130,246,0.15);
  --badge-bg:       #3B82F6;
  --nav-active-bg:  linear-gradient(135deg, rgba(59,130,246,0.18), rgba(59,130,246,0.08));
  --nav-active-color: #93C5FD;
  --nav-active-bar: #60A5FA;
  --chip-active-bg: linear-gradient(135deg, #3B82F6, #2563EB);
  --follow-border:  #60A5FA;
  --follow-color:   #93C5FD;
  --cta-bg:         linear-gradient(135deg, #3B82F6, #2563EB);
  --cta-shadow:     rgba(59,130,246,0.3);
  --search-focus-glow: rgba(59,130,246,0.2);
  --search-focus-border: #60A5FA;
  --header-bg:      rgba(15,23,42,0.95);
  --accent-rgb:     96,165,250;
  --white:          #1E293B;
  --danger-light:   rgba(239,68,68,0.15);
  --shadow-xs: 0 1px 2px rgba(0,0,0,.3);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,.4), 0 2px 4px rgba(0,0,0,.25);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.5), 0 4px 8px rgba(0,0,0,.3);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.6);
  --is-dark: 1;
}

/* 3. Orman — Dark Green */
[data-theme="forest"] {
  --bg-app:         #0D1F15;
  --bg-surface:     #132A1C;
  --bg-sidebar:     #132A1C;
  --bg-hover:       #1A3825;
  --border:         #254D34;
  --text-primary:   #ECFDF5;
  --text-secondary: #6EE7B7;
  --text-muted:     #4ADE80;
  --accent:         #22C55E;
  --accent-2:       #16A34A;
  --accent-light:   rgba(34,197,94,0.15);
  --accent-light-2: rgba(34,197,94,0.25);
  --accent-mid:     #86EFAC;
  --logo-hey:       #22C55E;
  --logo-hey-2:     #16A34A;
  --tag-color:      #86EFAC;
  --tag-bg:         rgba(34,197,94,0.15);
  --badge-bg:       #16A34A;
  --nav-active-bg:  linear-gradient(135deg, rgba(34,197,94,0.18), rgba(34,197,94,0.08));
  --nav-active-color: #86EFAC;
  --nav-active-bar: #22C55E;
  --chip-active-bg: linear-gradient(135deg, #22C55E, #16A34A);
  --follow-border:  #22C55E;
  --follow-color:   #86EFAC;
  --cta-bg:         linear-gradient(135deg, #22C55E, #16A34A);
  --cta-shadow:     rgba(34,197,94,0.3);
  --search-focus-glow: rgba(34,197,94,0.2);
  --search-focus-border: #22C55E;
  --header-bg:      rgba(13,31,21,0.95);
  --accent-rgb:     34,197,94;
  --white:          #132A1C;
  --danger-light:   rgba(239,68,68,0.15);
  --shadow-xs: 0 1px 2px rgba(0,0,0,.3);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,.4), 0 2px 4px rgba(0,0,0,.25);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.5), 0 4px 8px rgba(0,0,0,.3);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.6);
  --is-dark: 1;
}

/* 4. Gün Batımı — Warm Amber */
[data-theme="sunset"] {
  --bg-app:         #FFFBF0;
  --bg-surface:     #FFFFFF;
  --bg-sidebar:     #FFFFFF;
  --bg-hover:       #FEF3C7;
  --border:         #FDE68A;
  --text-primary:   #451A03;
  --text-secondary: #92400E;
  --text-muted:     #B45309;
  --accent:         #D97706;
  --accent-2:       #B45309;
  --accent-light:   #FEF3C7;
  --accent-light-2: #FDE68A;
  --accent-mid:     #F59E0B;
  --logo-hey:       #D97706;
  --logo-hey-2:     #B45309;
  --tag-color:      #B45309;
  --tag-bg:         #FEF3C7;
  --badge-bg:       #D97706;
  --nav-active-bg:  linear-gradient(135deg, #FEF3C7, rgba(253,230,138,0.5));
  --nav-active-color: #92400E;
  --nav-active-bar: #D97706;
  --chip-active-bg: linear-gradient(135deg, #D97706, #B45309);
  --follow-border:  #F59E0B;
  --follow-color:   #D97706;
  --cta-bg:         linear-gradient(135deg, #F59E0B, #D97706);
  --cta-shadow:     rgba(245,158,11,0.35);
  --search-focus-glow: rgba(245,158,11,0.15);
  --search-focus-border: #F59E0B;
  --header-bg:      rgba(255,251,240,0.95);
  --accent-rgb:     217,119,6;
  --is-dark: 0;
}

/* 5. Leylak — Dark Purple */
[data-theme="violet"] {
  --bg-app:         #150C25;
  --bg-surface:     #1E1035;
  --bg-sidebar:     #1E1035;
  --bg-hover:       #271845;
  --border:         #3B2068;
  --text-primary:   #F5F0FF;
  --text-secondary: #C4B5FD;
  --text-muted:     #A78BFA;
  --accent:         #A855F7;
  --accent-2:       #9333EA;
  --accent-light:   rgba(168,85,247,0.15);
  --accent-light-2: rgba(168,85,247,0.25);
  --accent-mid:     #D8B4FE;
  --logo-hey:       #A855F7;
  --logo-hey-2:     #9333EA;
  --tag-color:      #D8B4FE;
  --tag-bg:         rgba(168,85,247,0.15);
  --badge-bg:       #9333EA;
  --nav-active-bg:  linear-gradient(135deg, rgba(168,85,247,0.2), rgba(168,85,247,0.08));
  --nav-active-color: #D8B4FE;
  --nav-active-bar: #A855F7;
  --chip-active-bg: linear-gradient(135deg, #A855F7, #9333EA);
  --follow-border:  #A855F7;
  --follow-color:   #D8B4FE;
  --cta-bg:         linear-gradient(135deg, #A855F7, #9333EA);
  --cta-shadow:     rgba(168,85,247,0.35);
  --search-focus-glow: rgba(168,85,247,0.2);
  --search-focus-border: #A855F7;
  --header-bg:      rgba(21,12,37,0.96);
  --accent-rgb:     168,85,247;
  --white:          #1E1035;
  --danger-light:   rgba(239,68,68,0.15);
  --shadow-xs: 0 1px 2px rgba(0,0,0,.35);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.35), 0 1px 2px rgba(0,0,0,.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,.45), 0 2px 4px rgba(0,0,0,.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.55), 0 4px 8px rgba(0,0,0,.35);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.65);
  --is-dark: 1;
}

/* 6. Gül — Rose Pink */
[data-theme="rose"] {
  --bg-app:         #FFF1F4;
  --bg-surface:     #FFFFFF;
  --bg-sidebar:     #FFFFFF;
  --bg-hover:       #FFE4E9;
  --border:         #FECDD3;
  --text-primary:   #4C0519;
  --text-secondary: #9F1239;
  --text-muted:     #BE185D;
  --accent:         #E11D48;
  --accent-2:       #BE123C;
  --accent-light:   #FFE4E9;
  --accent-light-2: #FECDD3;
  --accent-mid:     #FB7185;
  --logo-hey:       #E11D48;
  --logo-hey-2:     #BE123C;
  --tag-color:      #BE123C;
  --tag-bg:         #FFE4E9;
  --badge-bg:       #E11D48;
  --nav-active-bg:  linear-gradient(135deg, #FFE4E9, rgba(254,205,211,0.5));
  --nav-active-color: #9F1239;
  --nav-active-bar: #E11D48;
  --chip-active-bg: linear-gradient(135deg, #E11D48, #BE123C);
  --follow-border:  #FB7185;
  --follow-color:   #E11D48;
  --cta-bg:         linear-gradient(135deg, #E11D48, #BE123C);
  --cta-shadow:     rgba(225,29,72,0.35);
  --search-focus-glow: rgba(225,29,72,0.12);
  --search-focus-border: #FB7185;
  --header-bg:      rgba(255,241,244,0.96);
  --accent-rgb:     225,29,72;
  --is-dark: 0;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 15px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

img { display: block; max-width: 100%; }
a  { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
select { font-family: inherit; }

/* ══════════════════════════════
   HEADER
══════════════════════════════ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border), 0 4px 20px rgba(0,0,0,0.04);
}

.header-inner {
  display: grid;
  grid-template-columns: var(--sidebar-left-w) 1fr var(--sidebar-right-w);
  align-items: center;
  gap: var(--space-4);
  height: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* Logo */
.logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  transition: opacity var(--transition);
}
.logo:hover { opacity: 0.85; }
.logo-edu { color: var(--text-primary); }
.logo-hey {
  color: var(--logo-hey);
  background: linear-gradient(135deg, var(--logo-hey), var(--logo-hey-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Search */
.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
}
.search-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  width: 17px; height: 17px;
  pointer-events: none;
  transition: color var(--transition);
  z-index: 1;
}
.search-input {
  width: 100%;
  height: 44px;
  padding: 0 52px 0 44px;
  border-radius: var(--r-full);
  border: 1.5px solid var(--border);
  background: var(--bg-hover);
  font-size: 0.875rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus {
  border-color: var(--search-focus-border);
  background: var(--bg-surface);
  box-shadow: 0 0 0 3px var(--search-focus-glow);
}
.search-input:focus ~ .search-btn { opacity: 1; }
.search-wrap:focus-within .search-icon { color: var(--accent); }

.search-btn {
  position: absolute;
  right: 6px;
  height: 32px; width: 32px;
  border-radius: var(--r-full);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.8;
  transition: opacity var(--transition), background var(--transition), transform var(--transition);
  box-shadow: 0 2px 8px rgba(var(--accent-rgb),0.3);
}
.search-btn:hover { opacity: 1; transform: scale(1.06); box-shadow: 0 4px 12px rgba(var(--accent-rgb),0.4); }

/* User Area */
.user-area { position: relative; display: flex; justify-content: flex-end; }

.user-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px 6px 6px;
  border-radius: var(--r-full);
  border: 1.5px solid var(--border);
  background: var(--bg-surface);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.user-btn:hover {
  border-color: var(--accent-mid);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb),0.1);
  background: var(--accent-light);
}
.user-btn[aria-expanded="true"] {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb),0.15);
}

.user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.user-avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}
.avatar-initials {
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
  letter-spacing: 0.03em;
}
.user-info { text-align: left; }
.user-name {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}
.user-role {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.2;
}
.chevron-icon {
  color: var(--text-muted);
  transition: transform var(--transition);
}
.user-btn[aria-expanded="true"] .chevron-icon {
  transform: rotate(180deg);
}

/* Dropdown */
.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 220px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-6px) scale(0.97);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  transform-origin: top right;
  z-index: 200;
}
.user-dropdown.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.dropdown-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: linear-gradient(135deg, var(--accent-light), var(--bg-surface));
}
.dropdown-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}
.dropdown-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}
.dropdown-email {
  font-size: 0.7rem;
  color: var(--text-muted);
}
.dropdown-divider {
  height: 1px;
  background: var(--border);
}
.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition);
}
.dropdown-item:hover {
  background: var(--bg-hover);
  color: var(--accent);
}
.dropdown-item svg { flex-shrink: 0; color: var(--text-muted); }
.dropdown-item:hover svg { color: var(--accent); }
.dropdown-item--danger { color: var(--danger); }
.dropdown-item--danger svg { color: var(--danger); }
.dropdown-item--danger:hover { background: var(--danger-light); color: var(--danger); }
.badge {
  margin-left: auto;
  background: var(--accent);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--r-full);
}

/* ══════════════════════════════
   LAYOUT
══════════════════════════════ */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-left-w) 1fr var(--sidebar-right-w);
  gap: 0;
  max-width: 1400px;
  margin: 0 auto;
  padding-top: var(--header-h);
  min-height: 100vh;
  align-items: start;
}

/* ══════════════════════════════
   LEFT SIDEBAR
══════════════════════════════ */
.sidebar {
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--neutral-200) transparent;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--neutral-200); border-radius: 4px; }

.sidebar--left {
  border-right: 1px solid var(--border);
  background: var(--bg-surface);
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Nav */
.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px var(--space-3);
  border-radius: var(--r-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition), transform var(--transition);
  position: relative;
}
.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  transform: translateX(2px);
}
.nav-item--active {
  background: var(--nav-active-bg);
  color: var(--nav-active-color);
  font-weight: 600;
}
.nav-item--active::before {
  content: '';
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 3px;
  background: var(--nav-active-bar);
  border-radius: 2px;
}
.nav-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-item--active .nav-icon { color: var(--accent); }
.nav-item:hover .nav-icon { color: var(--text-primary); }

.nav-badge {
  margin-left: auto;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--r-full);
  background: var(--accent-light-2);
  color: var(--nav-active-color);
  letter-spacing: 0.03em;
}
.nav-badge--new {
  background: linear-gradient(135deg, #F0ABFC, #818CF8);
  color: white;
  animation: pulse-badge 2s ease-in-out infinite;
}
@keyframes pulse-badge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.sidebar-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-2) var(--space-3);
}

.sidebar-section-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 4px var(--space-3) 6px;
  text-transform: uppercase;
}

.sidebar-cta-wrap {
  margin-top: auto;
  padding: var(--space-4) var(--space-3) var(--space-3);
}

.cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px var(--space-4);
  border-radius: var(--r-lg);
  background: var(--cta-bg);
  color: white;
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 14px var(--cta-shadow);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}
.cta-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--cta-shadow);
}
.cta-btn:hover::before { opacity: 1; }
.cta-btn:active { transform: translateY(0); }

/* ══════════════════════════════
   MAIN FEED
══════════════════════════════ */
.feed {
  padding: 15px;
  min-height: calc(100vh - var(--header-h));
  background: var(--bg-app);
}
  padding: var(--space-6) var(--space-6);
  min-height: calc(100vh - var(--header-h));
  background: var(--bg-app);
}

/* Feed header / section label */
.feed-section-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.feed-section-label h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}
.feed-section-label span {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-hover);
  padding: 2px 10px;
  border-radius: var(--r-full);
  font-weight: 500;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

/* Card */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition);
  animation: card-in 0.4s ease-out both;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--neutral-300);
}
@keyframes card-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.10s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.20s; }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4) var(--space-3);
}
.card-author { display: flex; align-items: center; gap: 10px; }
.author-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.author-name {
  display: block;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-primary);
}
.author-meta {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.card-more-btn {
  width: 30px; height: 30px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}
.card-more-btn:hover {
  background: var(--neutral-100);
  color: var(--text-primary);
}

/* Card image */
.card-image-wrap {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--neutral-100);
}
.card-image {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.card:hover .card-image { transform: scale(1.03); }

.card-type-badge {
  position: absolute;
  top: 10px; left: 10px;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.card-type-badge--activity {
  background: rgba(59,130,246,0.9);
  color: white;
}
.card-type-badge--game {
  background: rgba(168,85,247,0.9);
  color: white;
}
.card-type-badge--blog {
  background: rgba(245,158,11,0.9);
  color: white;
}

/* Card body */
.card-body { padding: var(--space-3) var(--space-4) var(--space-2); }
.card-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-desc {
  font-size: 0.775rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-tags {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
}
.tag {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--tag-color);
  background: var(--tag-bg);
  padding: 2px 8px;
  border-radius: var(--r-full);
  transition: background var(--transition), color var(--transition);
}
.tag:hover { background: var(--accent-light-2); }

/* Card footer */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-4) var(--space-3);
  border-top: 1px solid var(--border);
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.card-stats {
  display: flex;
  align-items: center;
  gap: 14px;
}
.stat {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}
.card-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}
.action-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  border-radius: var(--r-sm);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
  white-space: nowrap;
}
.action-btn:hover {
  background: var(--bg-hover);
  color: var(--accent);
}
.action-btn--like:hover {
  background: #FEE2E2;
  color: var(--danger);
}
.action-btn--like.liked {
  color: var(--danger);
}
.action-btn--like.liked svg {
  fill: var(--danger);
  stroke: var(--danger);
}

/* Load More */
.load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: var(--space-6);
}
.load-more-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px var(--space-6);
  border-radius: var(--r-full);
  border: 1.5px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 0.825rem;
  font-weight: 600;
  transition: all var(--transition);
}
.load-more-btn:hover {
  border-color: var(--accent-mid);
  color: var(--accent);
  background: var(--accent-light);
  box-shadow: 0 2px 10px rgba(var(--accent-rgb),0.15);
}
.load-more-btn svg {
  transition: transform 0.4s ease;
}
.load-more-btn:hover svg {
  transform: rotate(-180deg);
}

/* ══════════════════════════════
   RIGHT SIDEBAR
══════════════════════════════ */
.sidebar--right {
  border-left: 1px solid var(--border);
  background: var(--bg-app);
  padding: var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Widget */
.widget {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.widget:hover { box-shadow: var(--shadow-md); }

.widget-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px var(--space-4) 10px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  background: transparent;
}
.widget-title svg {
  color: var(--text-muted);
}

/* Filter chips */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: var(--space-3) var(--space-3) var(--space-3);
  overflow: hidden;
}
.chip {
  padding: 4px 11px;
  border-radius: var(--r-full);
  font-size: 0.69rem;
  font-weight: 600;
  border: 1.5px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  transition: all var(--transition);
  cursor: pointer;
  letter-spacing: 0.01em;
  white-space: nowrap;
  flex-shrink: 0;
}
.chip:hover {
  border-color: var(--accent-mid);
  color: var(--accent);
  background: var(--accent-light);
  transform: translateY(-1px);
}
.chip--active {
  background: var(--chip-active-bg);
  border-color: transparent;
  color: white;
  box-shadow: 0 2px 8px rgba(var(--accent-rgb),0.3);
}
.chip--active:hover {
  background: var(--chip-active-bg);
  color: white;
  transform: translateY(-1px);
  filter: brightness(0.92);
}

.filter-select-wrap {
  position: relative;
  padding: 0 var(--space-4) var(--space-4);
}
.filter-select {
  width: 100%;
  padding: 10px 36px 10px 14px;
  border-radius: var(--r-md);
  border: 1.5px solid var(--border);
  background: var(--bg-hover);
  color: var(--text-secondary);
  font-size: 0.8rem;
  appearance: none;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer;
  font-weight: 500;
}
.filter-select:focus {
  border-color: var(--accent-mid);
  background: var(--bg-surface);
  box-shadow: 0 0 0 3px var(--search-focus-glow);
}
.select-chevron {
  position: absolute;
  right: 26px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Trending */
.trending-list { padding: var(--space-1) 0 var(--space-2); }
.trending-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px var(--space-4);
  transition: background var(--transition);
  cursor: pointer;
  border-radius: 0;
  text-decoration: none;
}
.trending-item:hover { background: linear-gradient(to right, var(--accent-light), var(--bg-hover)); }
.trending-rank {
  font-size: 0.65rem;
  font-weight: 800;
  color: white;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
  width: 22px; height: 22px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}
.trending-item:nth-child(1) .trending-rank {
  background: linear-gradient(135deg, #F59E0B, #D97706);
}
.trending-item:nth-child(2) .trending-rank {
  background: linear-gradient(135deg, #94A3B8, #64748B);
}
.trending-item:nth-child(3) .trending-rank {
  background: linear-gradient(135deg, #CD7C47, #B45309);
}
.trending-info { flex: 1; min-width: 0; }
.trending-tag {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}
.trending-count {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-weight: 500;
}
.trending-arrow {
  color: var(--blue-400);
  flex-shrink: 0;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition), transform var(--transition);
}
.trending-item:hover .trending-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Creators */
.creators-list { padding: var(--space-2) 0 var(--space-1); }
.creator-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px var(--space-4);
  transition: background var(--transition);
}
.creator-item:hover { background: var(--bg-hover); }
.creator-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.creator-info { flex: 1; min-width: 0; }
.creator-name {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1px;
}
.creator-subject {
  font-size: 0.69rem;
  color: var(--text-muted);
  font-weight: 500;
}
.follow-btn {
  padding: 5px 13px;
  border-radius: var(--r-full);
  font-size: 0.71rem;
  font-weight: 600;
  border: 1.5px solid var(--follow-border);
  color: var(--follow-color);
  background: var(--bg-surface);
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.follow-btn:hover {
  background: var(--cta-bg);
  border-color: transparent;
  color: white;
  box-shadow: 0 2px 8px rgba(var(--accent-rgb),0.3);
  transform: translateY(-1px);
}
.follow-btn--following {
  background: var(--accent-light);
  border-color: var(--accent-light-2);
  color: var(--follow-color);
  font-size: 0.68rem;
}
.follow-btn--following:hover {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
  box-shadow: none;
}

/* Ads Widget */
.widget--ads {
  position: sticky;
  top: calc(var(--header-h) + var(--space-5));
  overflow: visible;
}
.ads-label {
  position: absolute;
  top: -8px; left: 12px;
  background: var(--neutral-400);
  color: white;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--r-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.ads-content {
  min-height: 600px;
  display: flex;
}
.ads-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  min-height: 600px;
  background: linear-gradient(135deg, var(--bg-hover), var(--accent-light));
  padding: var(--space-5);
}
.ads-icon { color: var(--neutral-300); }
.ads-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--neutral-400);
}
.ads-subtext {
  font-size: 0.7rem;
  color: var(--neutral-300);
}
.ads-dimensions {
  font-size: 0.65rem;
  color: var(--neutral-300);
  font-family: monospace;
  margin-top: 4px;
}

/* ══════════════════════════════
   MODAL
══════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}
.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}
.modal {
  background: var(--bg-surface);
  border-radius: var(--r-xl);
  width: 100%;
  max-width: 460px;
  padding: var(--space-6);
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-slow);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
}
.modal-overlay.is-open .modal {
  transform: translateY(0) scale(1);
}
.modal-close {
  position: absolute;
  top: var(--space-4); right: var(--space-4);
  width: 32px; height: 32px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
}
.modal-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.modal-icon {
  width: 56px; height: 56px;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--accent-light), var(--accent-light-2));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.modal-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.modal-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-5);
  line-height: 1.6;
}

/* Form */
.modal-form { display: flex; flex-direction: column; gap: var(--space-4); }
.form-group { display: flex; flex-direction: column; gap: var(--space-1); }
.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}
.form-input {
  padding: 10px 14px;
  border-radius: var(--r-md);
  border: 1.5px solid var(--border);
  background: var(--bg-hover);
  font-size: 0.875rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  font-family: inherit;
  width: 100%;
}
.form-input:focus {
  border-color: var(--accent-mid);
  background: var(--bg-surface);
  box-shadow: 0 0 0 3px var(--search-focus-glow);
}
.form-textarea { resize: vertical; min-height: 80px; line-height: 1.55; }

.modal-submit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px var(--space-5);
  border-radius: var(--r-lg);
  background: var(--cta-bg);
  color: white;
  font-size: 0.875rem;
  font-weight: 700;
  box-shadow: 0 4px 14px var(--cta-shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  margin-top: var(--space-1);
}
.modal-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--cta-shadow);
}
.modal-submit-btn:active { transform: translateY(0); }

/* ══════════════════════════════
   TOAST
══════════════════════════════ */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  min-width: 260px;
  max-width: 360px;
  padding: 14px 18px;
  background: var(--neutral-900);
  color: white;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-xl);
  z-index: 600;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */
@media (max-width: 1280px) {
  :root {
    --sidebar-right-w: 260px;
    --sidebar-left-w: 200px;
  }
}
@media (max-width: 1100px) {
  :root { --sidebar-right-w: 240px; }
  .header-inner {
    grid-template-columns: var(--sidebar-left-w) 1fr auto;
  }
}
@media (max-width: 1024px) {
  .layout {
    grid-template-columns: var(--sidebar-left-w) 1fr;
  }
  .sidebar--right { display: none; }
  .header-inner {
    grid-template-columns: var(--sidebar-left-w) 1fr auto;
  }
}
@media (max-width: 768px) {
  :root {
    --sidebar-left-w: 60px;
    --header-h: 60px;
  }
  .header-inner {
    grid-template-columns: auto 1fr auto;
    padding: 0 var(--space-3);
  }
  .nav-item span { display: none; }
  .nav-item { justify-content: center; padding: 10px; }
  .nav-item--active::before { display: none; }
  .nav-badge, .nav-badge--new { display: none; }
  .sidebar-section-title { display: none; }
  .sidebar-cta-wrap { padding: var(--space-3) var(--space-1); }
  .cta-btn span { display: none; }
  .cta-btn { padding: 12px; border-radius: 50%; width: 40px; height: 40px; justify-content: center; }
  .user-info { display: none; }
  .chevron-icon { display: none; }
  .cards-grid { grid-template-columns: 1fr; }
  .feed { padding: var(--space-4) var(--space-3); }
}
@media (max-width: 540px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar--left { display: none; }
  .header-inner { padding: 0 var(--space-4); grid-template-columns: auto 1fr auto; }
}

/* ══════════════════════════════
   SCROLLBAR (global)
══════════════════════════════ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ══════════════════════════════════════════════
   THEME SWITCHER
══════════════════════════════════════════════ */

/* Floating trigger button */
.theme-trigger {
  position: fixed;
  bottom: 28px;
  left: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--cta-bg);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.45), 0 1px 4px rgba(0,0,0,0.2);
  z-index: 400;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 2px solid rgba(255,255,255,0.25);
}
.theme-trigger:hover {
  transform: scale(1.1) rotate(30deg);
  box-shadow: 0 6px 28px rgba(var(--accent-rgb), 0.55), 0 2px 8px rgba(0,0,0,0.25);
}
.theme-trigger svg {
  transition: transform 0.5s ease;
}
.theme-trigger.is-open svg {
  transform: rotate(180deg);
}

/* Panel */
.theme-panel {
  position: fixed;
  bottom: 88px;
  left: 28px;
  width: 280px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-xl);
  z-index: 400;
  overflow: hidden;
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  pointer-events: none;
  transition: opacity var(--transition-slow), transform var(--transition-slow);
  transform-origin: bottom left;
}
.theme-panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.theme-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(to right, var(--bg-hover), var(--bg-surface));
}
.theme-panel-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.theme-panel-title svg { color: var(--accent); }

.theme-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 14px;
}

.theme-card {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  background: none;
}
.theme-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.theme-card.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.2);
}

.theme-preview {
  width: 100%;
  height: 68px;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
}
.theme-preview-bar {
  height: 8px;
  border-radius: 4px;
  width: 60%;
}
.theme-preview-dot {
  position: absolute;
  bottom: 6px; right: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
}

.theme-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  padding: 5px 4px 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.theme-active-check {
  position: absolute;
  top: 5px; right: 5px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: none;
  align-items: center;
  justify-content: center;
}
.theme-card.is-active .theme-active-check { display: flex; }

.theme-panel-footer {
  padding: 10px 14px 14px;
  border-top: 1px solid var(--border);
}
.theme-reset-btn {
  width: 100%;
  padding: 8px;
  border-radius: var(--r-md);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-hover);
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: pointer;
}
.theme-reset-btn:hover {
  color: var(--accent);
  border-color: var(--accent-mid);
  background: var(--accent-light);
}

/* Smooth theme transition */
body, .header, .sidebar--left, .sidebar--right, .card, .widget,
.nav-item, .user-btn, .search-input, .feed, .layout {
  transition-property: background-color, border-color, color;
  transition-duration: 350ms;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ══════════════════════════════════════════════
   DETAIL PAGES (ACTIVITY, BLOG, GAME)
══════════════════════════════════════════════ */

/* Layout for Game Page (No Right Sidebar) */
.layout--game {
  display: grid;
  grid-template-columns: var(--sidebar-left-w) 1fr;
  min-height: calc(100vh - var(--header-h));
  margin-top: var(--header-h);
}
@media (max-width: 1024px) {
  .layout--game { grid-template-columns: 200px 1fr; }
}
@media (max-width: 900px) {
  .layout--game { grid-template-columns: 1fr; }
}

/* Horizontal Ads Widget */
.widget--ads-horizontal {
  background: linear-gradient(135deg, var(--bg-hover), var(--bg-surface));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  position: relative;
  min-height: 120px;
}
.widget--ads-horizontal .ads-label {
  top: 8px; left: 12px;
}
.widget--ads-horizontal .ads-dimensions {
  margin-top: 6px;
}

/* Activity Detail */
.activity-detail {
  background: var(--bg-surface);
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.activity-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-6);
  padding: var(--space-6);
  border-bottom: 1px solid var(--border);
}
@media (max-width: 1024px) {
  .activity-top { grid-template-columns: 1fr; }
}
.activity-gallery {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--bg-hover);
  aspect-ratio: 4/5;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.05);
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}
.activity-gallery-img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.gallery-arrow {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  width: 36px; height: 36px;
  background: rgba(15,23,42,0.6);
  color: white;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: all var(--transition);
}
.gallery-arrow:hover { background: rgba(15,23,42,0.8); transform: translateY(-50%) scale(1.1); }
.gallery-arrow--left { left: 12px; }
.gallery-arrow--right { right: 12px; }

.activity-info {
  display: flex;
  flex-direction: column;
}
.activity-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}
.activity-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}
.activity-tags {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: var(--space-5);
}
.activity-author-box {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  background: var(--bg-hover);
  border-radius: var(--r-md);
  margin-bottom: var(--space-5);
}
.activity-banner {
  margin-top: auto;
  background: linear-gradient(135deg, rgba(217,70,239,0.1), rgba(139,92,246,0.1));
  border: 1px solid rgba(217,70,239,0.2);
  border-radius: var(--r-md);
  padding: 16px;
  display: flex; align-items: flex-start; gap: 12px;
}
.activity-banner-icon { color: #D946EF; flex-shrink: 0; }
.activity-banner-text h4 { font-size: 0.85rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.activity-banner-text p { font-size: 0.75rem; color: var(--text-secondary); line-height: 1.5; }

.activity-bottom {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-5);
  padding: var(--space-6);
  background: var(--bg-app);
}
.activity-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-5);
  display: flex; flex-direction: column;
}
.activity-card-title {
  font-size: 0.95rem; font-weight: 700; color: var(--text-primary); margin-bottom: 12px;
  display: flex; align-items: center; gap: 8px;
}
.activity-card-title svg { color: var(--accent); }
.activity-stat-row {
  display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--border);
  font-size: 0.85rem; color: var(--text-secondary);
}
.activity-stat-row:last-child { border-bottom: none; }
.activity-stat-val { font-weight: 600; color: var(--text-primary); }
.activity-card-btn {
  margin-top: auto;
  width: 100%; padding: 10px; border-radius: var(--r-md);
  border: 1px solid var(--border); background: var(--bg-hover);
  color: var(--text-primary); font-weight: 600; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: all var(--transition);
}
.activity-card-btn:hover { background: var(--accent); color: white; border-color: var(--accent); }
.activity-card-btn--primary {
  background: var(--cta-bg); color: white; border: none; box-shadow: 0 4px 12px var(--cta-shadow);
}
.activity-card-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 6px 16px var(--cta-shadow); background: var(--accent); }

/* Blog Detail */
.blog-detail {
  background: var(--bg-surface);
  border-radius: var(--r-xl);
  border: none;
  overflow: hidden;
  padding: 15px;
}
  background: var(--bg-surface);
  border-radius: var(--r-xl);
  border: none;
  overflow: hidden;
}
.blog-hero {
  position: relative; width: 100%; height: 320px;
}
.blog-hero img { width: 100%; height: 100%; object-fit: cover; }
.blog-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(15,23,42,0.9), transparent);
  display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start;
  padding: var(--space-4);
}
.blog-hero-category {
  display: inline-block; padding: 4px 12px; background: var(--accent); color: white;
  font-size: 0.75rem; font-weight: 700; border-radius: var(--r-full); margin-bottom: 12px; align-self: flex-start;
}
.blog-hero-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: white;
  line-height: 1.2;
  margin-bottom: 12px;
  max-width: 90%;
  background: rgba(0,0,0,0.4);
  padding: var(--space-2);
  border-radius: var(--r-md);
}
.blog-hero-meta {
  display: flex; align-items: center; gap: 16px; color: rgba(255,255,255,0.8); font-size: 0.85rem;
}
.blog-content {
  padding: var(--space-2);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}
}
.blog-content h2 { font-size: 1.5rem; font-weight: 800; color: var(--text-primary); margin: 32px 0 16px; }
.blog-content h3 { font-size: 1.25rem; font-weight: 700; color: var(--text-primary); margin: 24px 0 12px; }
.blog-content p { margin-bottom: 20px; }
.blog-content blockquote {
  border-left: 4px solid var(--accent); background: var(--bg-hover);
  padding: 16px 24px; margin: 24px 0; border-radius: 0 var(--r-md) var(--r-md) 0;
  font-style: italic; color: var(--text-primary); font-weight: 500;
}
.blog-content img { width: 100%; border-radius: var(--r-lg); margin: 24px 0; }
.blog-tags { display: flex; gap: 10px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }

/* Game Detail */
.game-detail {
  background: var(--bg-surface);
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  padding: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-5);
}
.game-header { display: flex; justify-content: space-between; align-items: flex-start; }
.game-title { font-size: 1.8rem; font-weight: 800; color: var(--text-primary); margin-bottom: 8px; }
.game-container {
  width: 100%; aspect-ratio: 16/9;
  background: #0F172A; border-radius: var(--r-lg);
  overflow: hidden; position: relative;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
}
.game-play-btn {
  width: 80px; height: 80px; border-radius: 50%;
  background: var(--accent); color: white;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.7);
  animation: pulse-play 2s infinite; transition: transform 0.3s;
}
.game-play-btn:hover { transform: scale(1.1); }
@keyframes pulse-play {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 20px rgba(var(--accent-rgb), 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0); }
}
.game-instructions {
  background: var(--bg-hover); padding: var(--space-5); border-radius: var(--r-md);
}
.game-instructions h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; color: var(--text-primary); }
.game-instructions ul { list-style: inside; color: var(--text-secondary); line-height: 1.6; font-size: 0.95rem; }

/* ==============================
   DASHBOARD STYLES 
============================== */
.dashboard-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  animation: fadeInUp 0.5s ease backwards;
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}
.stat-info h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.stat-info .stat-val {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.modern-table-wrap {
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
}
.modern-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.modern-table th {
  background: var(--bg-hover);
  padding: 14px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border);
}
.modern-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}
.modern-table tr:last-child td {
  border-bottom: none;
}
.modern-table tr:hover {
  background: var(--bg-hover);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.badge-warning { background: #FEF3C7; color: #B45309; }
.badge-success { background: #D1FAE5; color: #047857; }
.badge-danger { background: #FEE2E2; color: #B91C1C; }
.badge-info { background: #DBEAFE; color: #1D4ED8; }
.badge-purple { background: #F3E8FF; color: #7E22CE; }

.action-btn-sm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--r-md);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-approve { background: #10B981; color: white; }
.btn-approve:hover { background: #059669; transform: translateY(-1px); }
.btn-reject { background: #EF4444; color: white; }
.btn-reject:hover { background: #DC2626; transform: translateY(-1px); }

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
}
.empty-state svg {
  color: var(--border);
  margin-bottom: 16px;
}
.empty-state p {
  font-size: 0.95rem;
  font-weight: 500;
}