/**
 * ============================================================
 *  ZenView — Open Source · Made with ❤️
 *  https://github.com/ItsMarwan/ZenView
 *  style.css — Black & White theme with full dark/light mode
 * ============================================================
 */

:root {
  --accent: #ffffff;
  --radius: 0.75rem;
  --transition: 0.25s ease;
}

html.dark {
  --bg-primary:    #000000;
  --bg-secondary:  #0a0a0a;
  --bg-tertiary:   #111111;
  --bg-elevated:   #161616;
  --border:        rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.25);
  --text-primary:  #ffffff;
  --text-secondary:#a0a0a0;
  --text-muted:    #555555;
  --hover-bg:      rgba(255, 255, 255, 0.06);
  --active-bg:     rgba(255, 255, 255, 0.12);
  --input-bg:      #0d0d0d;
  --shadow:        0 4px 24px rgba(0, 0, 0, 0.6);
  --shadow-lg:     0 8px 48px rgba(0, 0, 0, 0.8);
}

html.light {
  --bg-primary:    #ffffff;
  --bg-secondary:  #f5f5f5;
  --bg-tertiary:   #ebebeb;
  --bg-elevated:   #ffffff;
  --border:        rgba(0, 0, 0, 0.1);
  --border-strong: rgba(0, 0, 0, 0.3);
  --text-primary:  #000000;
  --text-secondary:#444444;
  --text-muted:    #999999;
  --hover-bg:      rgba(0, 0, 0, 0.05);
  --active-bg:     rgba(0, 0, 0, 0.1);
  --input-bg:      #f9f9f9;
  --shadow:        0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg:     0 8px 48px rgba(0, 0, 0, 0.15);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color var(--transition), color var(--transition);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted     { color: var(--text-muted); }

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover { border-color: var(--border-strong); }

.card-elevated {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
}
.btn-primary:hover { opacity: 0.85; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--hover-bg);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-icon {
  padding: 0.5rem;
  border-radius: 9999px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-icon:hover {
  background: var(--hover-bg);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 40;
}

.logo {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  text-decoration: none;
  transition: opacity var(--transition);
}
.logo:hover { opacity: 0.7; }

.nav-search-wrap {
  position: relative;
  flex: 1;
  max-width: 480px;
}

.nav-search-input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 9999px;
  padding: 0.5rem 1rem 0.5rem 2.75rem;
  font-size: 0.875rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav-search-input::placeholder { color: var(--text-muted); }
.nav-search-input:focus {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px var(--active-bg);
}

.nav-search-icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.suggestions-list {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  overflow: hidden;
  max-height: 320px;
  overflow-y: auto;
}

.suggestion-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: background var(--transition), color var(--transition);
}
.suggestion-item:hover {
  background: var(--hover-bg);
  color: var(--text-primary);
}

#hero-search-wrap {
  position: relative;
  width: 100%;
  max-width: 680px;
}

.hero-search-input {
  width: 100%;
  background: var(--input-bg);
  border: 2px solid var(--border-strong);
  border-radius: 9999px;
  padding: 1rem 7rem 1rem 3.5rem;
  font-size: 1rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow);
}
.hero-search-input::placeholder { color: var(--text-muted); }
.hero-search-input:focus {
  border-color: var(--text-primary);
  box-shadow: 0 0 0 4px var(--active-bg);
}

.hero-search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.hero-search-btn {
  position: absolute;
  right: 0.375rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--text-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: 9999px;
  padding: 0.6rem 1.25rem;
  font-weight: 700;
  font-size: 0.875rem;
  cursor: pointer;
  transition: opacity var(--transition);
}
.hero-search-btn:hover { opacity: 0.8; }

.hero-suggestions {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  overflow: hidden;
}

.input-field {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition);
}
.input-field::placeholder { color: var(--text-muted); }
.input-field:focus { border-color: var(--border-strong); }

.input-wrapper { position: relative; }
.eye-icon {
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  cursor: pointer;
  color: var(--text-muted);
}
.eye-icon:hover { color: var(--text-primary); }

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.video-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition), transform 0.2s ease, box-shadow var(--transition);
}
.video-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.video-thumb {
  aspect-ratio: 16 / 9;
  background-color: var(--bg-tertiary);
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.video-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}
.video-card:hover .video-thumb-img { transform: scale(1.03); }

.video-card-body {
  padding: 0.875rem;
}

.video-card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.25rem;
}

.video-card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.video-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: var(--radius);
  overflow: hidden;
}
.video-container iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}

.lights-off body { background: #000; }
.lights-off #main-content-container { background: #000 !important; }
.lights-off .video-wrapper { position: relative; z-index: 50; }
.lights-off #video-player-container { background: rgba(0,0,0,.95); min-height: 100vh; padding: 2rem 0; }

.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.tab-btn {
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--text-primary);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: calc(var(--radius) * 1.5);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  margin: 1rem;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

#toast-container {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toastIn 0.25s ease forwards;
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px);
}

.toast-success { background: var(--bg-elevated); color: var(--text-primary); }
.toast-error   { background: #1a0000; color: #ff6b6b; border-color: rgba(255, 107, 107, 0.3); }
.toast-info    { background: var(--bg-elevated); color: var(--text-secondary); }

.toast.out { animation: toastOut 0.25s ease forwards; }

@keyframes toastIn  { from { opacity:0; transform:translateY(12px); } to { opacity:1; transform:translateY(0); } }
@keyframes toastOut { from { opacity:1; transform:translateY(0); } to { opacity:0; transform:translateY(12px); } }

#app-loader {
  position: fixed;
  inset: 0;
  background: #000000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}
#app-loader.hidden { opacity: 0; pointer-events: none; }

.loader-ring {
  width: 56px;
  height: 56px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loader-z {
  font-size: 3.5rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes spin  { to { transform: rotate(360deg); } }
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:0.4; } }

.fade-in { animation: fadeIn 0.3s ease forwards; }
@keyframes fadeIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:translateY(0); } }

.description-collapsed {
  max-height: 4em;
  overflow: hidden;
  position: relative;
}
.description-collapsed::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2em;
  background: linear-gradient(to bottom, transparent, var(--bg-secondary));
}

.section-heading {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.625rem;
  border-bottom: 1px solid var(--border);
}

.danger-zone {
  border: 1px solid rgba(255, 80, 80, 0.3);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.btn-danger {
  width: 100%;
  padding: 0.75rem;
  border-radius: 0.5rem;
  background: rgba(255, 80, 80, 0.1);
  border: 1px solid rgba(255, 80, 80, 0.4);
  color: #ff6b6b;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-danger:hover { background: rgba(255, 80, 80, 0.25); }

.docs-step {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}
.docs-step:last-child { border-bottom: none; }

.docs-step-num {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.feature-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

.hidden { display: none !important; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.spin { animation: spin 1s linear infinite; }