/* /opt/skynet-portal/app/static/css/appearance.css */
/* v0.1.0 — премиальная панель оформления + флаги языков */
/* 30.05.2026: выезжающая панель (тема/акцент/фон), стекло, вкладки, превью */

/* =====================================================================
   ФЛАГИ ЯЗЫКОВ (в топбаре)
   ===================================================================== */
.lang-flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 0;
}
.lang-flag svg {
  display: block;
  border-radius: 3px;
  box-shadow: 0 0 0 1px var(--border-default), 0 1px 3px rgba(0, 0, 0, 0.3);
}
.lang-flag-menu svg {
  border-radius: 3px;
}
.topbar-lang {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  width: auto;
  padding-left: var(--sp-3);
  padding-right: var(--sp-3);
}
.topbar-lang-code {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}
.topbar-menu-lang-name {
  flex: 1;
  text-align: left;
}

/* =====================================================================
   ОВЕРЛЕЙ (затемнение под панелью)
   ===================================================================== */
.appearance-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}
.appearance-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

/* =====================================================================
   ПАНЕЛЬ (выезжает справа)
   ===================================================================== */
.appearance-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: calc(var(--z-overlay) + 1);
  width: 380px;
  max-width: 90vw;
  display: flex;
  flex-direction: column;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  border-left: var(--border-thin) solid var(--glass-border);
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow: hidden;
}
.appearance-panel.is-open {
  transform: translateX(0);
}

/* Светящаяся полоса сверху панели */
.appearance-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-glow);
  z-index: 2;
}

/* --- Шапка панели --- */
.appearance-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-6);
  border-bottom: var(--border-thin) solid var(--border-subtle);
  flex-shrink: 0;
}
.appearance-header-title {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
}
.appearance-header-title svg { color: var(--accent); }
.appearance-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-2);
  border: var(--border-thin) solid var(--border-default);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.appearance-close:hover {
  background: var(--bg-surface-3);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

/* --- Вкладки --- */
.appearance-tabs {
  display: flex;
  gap: var(--sp-1);
  padding: var(--sp-3) var(--sp-4);
  margin: var(--sp-4) var(--sp-4) 0;
  background: var(--bg-input);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--border-subtle);
  flex-shrink: 0;
}
.appearance-tab {
  flex: 1;
  padding: var(--sp-2) var(--sp-3);
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-tertiary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.appearance-tab:hover {
  color: var(--text-secondary);
}
.appearance-tab.is-active {
  background: var(--gradient-accent);
  color: var(--text-on-accent);
  box-shadow: 0 2px 8px var(--accent-glow);
}

/* --- Тело панели (скролл) --- */
.appearance-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-6) var(--sp-4) var(--sp-8);
}
.appearance-body::-webkit-scrollbar { width: 8px; }
.appearance-body::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
}

/* Панель вкладки (скрыта по умолчанию) */
.appearance-pane { display: none; }
.appearance-pane.is-active {
  display: block;
  animation: appearance-fade var(--transition-base);
}
@keyframes appearance-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.appearance-section-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: var(--sp-4);
}
.appearance-hint {
  margin-top: var(--sp-5);
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  line-height: var(--lh-snug);
  background: var(--bg-input);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--border-subtle);
}

/* =====================================================================
   ВКЛАДКА «ТЕМА» — карточки-превью
   ===================================================================== */
.theme-cards {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.theme-card {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-3);
  background: var(--bg-surface);
  border: var(--border-base) solid var(--border-default);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  text-align: left;
}
.theme-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.theme-card.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.theme-card-preview {
  width: 64px;
  height: 44px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  border: var(--border-thin) solid rgba(255, 255, 255, 0.1);
}
.theme-card-preview .tcp-bar {
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  height: 6px;
  border-radius: 3px;
}
.theme-card-preview .tcp-dot {
  position: absolute;
  bottom: 8px;
  left: 8px;
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
}
/* Превью каждой темы */
.tcp-violet { background: #0d1326; }
.tcp-violet .tcp-bar { background: linear-gradient(90deg, #7c5cfc, #a855f7); }
.tcp-violet .tcp-dot { background: #7c5cfc; box-shadow: 0 0 8px #7c5cfc; }
.tcp-gold { background: #14110b; }
.tcp-gold .tcp-bar { background: linear-gradient(90deg, #e8b94a, #f5a623); }
.tcp-gold .tcp-dot { background: #e8b94a; box-shadow: 0 0 8px #e8b94a; }
.tcp-cyan { background: #0a1417; }
.tcp-cyan .tcp-bar { background: linear-gradient(90deg, #06b6d4, #0ea5e9); }
.tcp-cyan .tcp-dot { background: #06b6d4; box-shadow: 0 0 8px #06b6d4; }

.theme-card-name {
  flex: 1;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
}
.theme-card-check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: var(--text-on-accent);
  opacity: 0;
  transform: scale(0.6);
  transition: all var(--transition-spring);
  flex-shrink: 0;
}
.theme-card.is-active .theme-card-check {
  opacity: 1;
  transform: scale(1);
}

/* =====================================================================
   ВКЛАДКА «АКЦЕНТ» — палитра кружков
   ===================================================================== */
.accent-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
}
.accent-swatch {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  background: var(--sw);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--sw) 40%, transparent);
}
.accent-swatch:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--sw) 55%, transparent);
}
.accent-swatch.is-active {
  border-color: #fff;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--sw) 60%, transparent),
              0 6px 18px color-mix(in srgb, var(--sw) 50%, transparent);
}
.accent-swatch.is-active::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
  transform: translate(-50%, -50%);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* =====================================================================
   ВКЛАДКА «ФОН» — текстуры
   ===================================================================== */
.bg-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
}
.bg-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-2);
  background: var(--bg-surface);
  border: var(--border-base) solid var(--border-default);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
}
.bg-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.bg-card.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.bg-card-preview {
  height: 64px;
  border-radius: var(--radius-md);
  background-color: var(--bg-canvas);
  border: var(--border-thin) solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
}
.bgp-grid {
  background-image:
    linear-gradient(rgba(124, 92, 252, 0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 92, 252, 0.25) 1px, transparent 1px);
  background-size: 12px 12px;
}
.bgp-dots {
  background-image: radial-gradient(rgba(124, 92, 252, 0.4) 1.5px, transparent 1.5px);
  background-size: 12px 12px;
}
.bgp-lines {
  background-image: repeating-linear-gradient(
    45deg, rgba(124, 92, 252, 0.25), rgba(124, 92, 252, 0.25) 1px,
    transparent 1px, transparent 8px
  );
}
.bgp-none {
  background: var(--bg-canvas);
}
.bg-card-name {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
  text-align: center;
  padding-bottom: var(--sp-1);
}

/* =====================================================================
   АДАПТИВ
   ===================================================================== */
@media (max-width: 480px) {
  .appearance-panel { width: 100vw; max-width: 100vw; }
  .accent-grid { grid-template-columns: repeat(4, 1fr); }
}