/* ============================================================
   КОНСТРУКТОР ПРИГЛАШЕНИЙ — ОСНОВНЫЕ СТИЛИ
   ============================================================ */

/* --- CSS-переменные --- */
:root {
  --primary: #e91e63;
  --accent: #ff5722;
  --bg: #f8f9fc;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --border: rgba(255, 255, 255, 0.5);
  --border-subtle: rgba(0, 0, 0, 0.06);
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --sidebar-width: 380px;
  --topbar-height: 52px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* --- Сброс и базовые стили --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font);
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* --- Скроллбар (WebKit) --- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.15);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.25); }

/* ============================================================
   ВЕРХНЯЯ ПАНЕЛЬ
   ============================================================ */
.topbar {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  z-index: 100;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 160px;
}

.topbar-logo {
  font-size: 22px;
  color: var(--primary);
  line-height: 1;
}

.topbar-title {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.3px;
}

.topbar-center {
  display: flex;
  align-items: center;
  gap: 4px;
}

.topbar-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}

.topbar-btn:hover {
  background: rgba(0,0,0,0.05);
}

.topbar-btn:active {
  transform: scale(0.96);
}

.topbar-btn svg {
  flex-shrink: 0;
}

.topbar-right {
  min-width: 160px;
  display: flex;
  justify-content: flex-end;
}

.preview-btn {
  background: var(--primary);
  color: #fff;
}

.preview-btn:hover {
  background: #d81558;
}

.publish-btn {
  background: linear-gradient(135deg, #e91e63, #9c27b0);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(233, 30, 99, 0.35);
  position: relative;
}

.publish-btn:hover {
  background: linear-gradient(135deg, #d81558, #7b1fa2);
  box-shadow: 0 4px 20px rgba(233, 30, 99, 0.5);
  transform: translateY(-1px);
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 2px 12px rgba(233, 30, 99, 0.35); }
  50% { box-shadow: 0 2px 20px rgba(233, 30, 99, 0.6); }
}

/* ============================================================
   ОСНОВНОЙ LAYOUT
   ============================================================ */
.workspace {
  display: flex;
  height: calc(100vh - var(--topbar-height));
  overflow: hidden;
}

/* ============================================================
   ЛЕВАЯ ПАНЕЛЬ (SIDEBAR)
   ============================================================ */
.sidebar {
  width: var(--sidebar-width);
  min-width: 280px;
  max-width: 600px;
  display: flex;
  flex-shrink: 0;
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-right: 1px solid var(--border-subtle);
  overflow: hidden;
}

/* Навигация слева */
.sidebar-nav {
  width: 56px;
  min-width: 56px;
  padding: 8px 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  border-right: 1px solid var(--border-subtle);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 4px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 9px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
  line-height: 1.1;
}

.nav-item:hover {
  background: rgba(0,0,0,0.04);
  color: var(--text);
}

.nav-item.active {
  background: rgba(233, 30, 99, 0.08);
  color: var(--primary);
}

.nav-item svg {
  flex-shrink: 0;
}

/* Контент настроек */
.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

/* Панели настроек */
.settings-panel {
  display: none;
}

.settings-panel.active {
  display: block;
  animation: panelFade 0.25s ease;
}

@keyframes panelFade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.panel-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.panel-desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

/* ============================================================
   ФОРМЫ
   ============================================================ */
.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="datetime-local"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.6);
  font: inherit;
  font-size: 13px;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(233,30,99,0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 60px;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236e6e73' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

.form-group input[type="range"] {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: rgba(0,0,0,0.08);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  margin-top: 4px;
}

.form-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(233,30,99,0.3);
  transition: transform 0.15s;
}

.form-group input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.form-group input[type="color"] {
  width: 100%;
  height: 34px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px;
  cursor: pointer;
  background: transparent;
}

.form-group input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 2px;
}

.form-group input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 4px;
}

.btn-small {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #fff;
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 6px;
}

.btn-small:hover { background: #d81558; }
.btn-small:active { transform: scale(0.96); }

.btn-remove {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: rgba(255,0,0,0.1);
  color: #e53935;
  font-size: 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.btn-remove:hover { background: rgba(255,0,0,0.2); }

/* ============================================================
   DRAG & DROP ЗОНА
   ============================================================ */
.dropzone {
  border: 2px dashed rgba(0,0,0,0.12);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 12px;
  background: rgba(255,255,255,0.3);
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--primary);
  background: rgba(233,30,99,0.04);
}

.dropzone p {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.dropzone.small {
  padding: 12px;
}

.dropzone.small svg { display: none; }

/* ============================================================
   ФОТО СЕТКА
   ============================================================ */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}

.photo-thumb {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  cursor: grab;
  border: 2px solid transparent;
  transition: border-color var(--transition);
}

.photo-thumb.main { border-color: var(--primary); }

.photo-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-thumb .photo-actions {
  position: absolute;
  top: 2px;
  right: 2px;
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--transition);
}

.photo-thumb:hover .photo-actions { opacity: 1; }

.photo-thumb .photo-actions button {
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================
   МУЗЫКА
   ============================================================ */
.music-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(233,30,99,0.06);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  font-size: 12px;
}

/* ============================================================
   СООБЩЕНИЯ
   ============================================================ */
.messages-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.message-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: grab;
}

.message-item input {
  flex: 1;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 13px;
  outline: none;
  color: var(--text);
}

.message-item .msg-handle {
  color: var(--text-secondary);
  cursor: grab;
  font-size: 14px;
}

/* ============================================================
   ТЕМЫ
   ============================================================ */
.themes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.theme-card {
  padding: 12px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  font-size: 12px;
  font-weight: 500;
}

.theme-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.theme-card.active { border-color: var(--primary); }

.theme-card .theme-preview {
  height: 40px;
  border-radius: 8px;
  margin-bottom: 6px;
}

/* ============================================================
   УКРАШЕНИЯ
   ============================================================ */
.decorations-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}

.decor-btn {
  aspect-ratio: 1;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.5);
  font-size: 24px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.decor-btn:hover {
  background: rgba(233,30,99,0.08);
  border-color: var(--primary);
  transform: scale(1.1);
}

/* ============================================================
   SVG СПИСОК
   ============================================================ */
.svg-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.svg-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.svg-item img {
  width: 32px;
  height: 32px;
}

/* ============================================================
   РАЗДЕЛИТЕЛЬ (RESIZER)
   ============================================================ */
.resizer {
  width: 5px;
  cursor: col-resize;
  background: transparent;
  transition: background var(--transition);
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.resizer::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 3px;
  height: 32px;
  border-radius: 2px;
  background: rgba(0,0,0,0.1);
  transition: background var(--transition);
}

.resizer:hover,
.resizer.active {
  background: rgba(233,30,99,0.06);
}

.resizer:hover::after,
.resizer.active::after {
  background: var(--primary);
}

/* ============================================================
   ПРАВАЯ ПАНЕЛЬ (PREVIEW)
   ============================================================ */
.preview-area {
  flex: 1;
  padding: 12px;
  overflow: hidden;
  display: flex;
  align-items: stretch;
}

.preview-frame {
  flex: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-subtle);
  background: #fff;
  position: relative;
}

.preview-frame iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: #fff;
}

/* ============================================================
   ПОЛНОЭКРАННЫЙ ПРЕДПРОСМОТР
   ============================================================ */
.fullscreen-preview {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #000;
}

.fullscreen-preview iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.fullscreen-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition);
}

.fullscreen-close:hover {
  background: rgba(255,255,255,0.3);
}

/* ============================================================
   ТЕГИ
   ============================================================ */
.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  background: rgba(233,30,99,0.08);
  color: var(--primary);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
}

.tag button {
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0;
  margin-left: 2px;
}

/* ============================================================
   АНИМАЦИИ
   ============================================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   ГАМБУРГЕР-КНОПКА
   ============================================================ */
.hamburger-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
}
.hamburger-btn:hover { background: rgba(0,0,0,0.05); }
.hamburger-btn svg { flex-shrink: 0; }

/* Оверлей для закрытия sidebar */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  z-index: 199;
}
.sidebar-overlay.active { display: block; }

/* ============================================================
   АДАПТИВНОСТЬ
   ============================================================ */
@media (max-width: 900px) {
  .topbar-btn span { display: none; }
  .topbar-btn { padding: 6px 8px; touch-action: manipulation; }
  .publish-btn span { display: none; }

  .sidebar { width: 280px !important; min-width: 200px; }
  .sidebar-nav { width: 44px; min-width: 44px; }
  .nav-item { font-size: 8px; padding: 6px 2px; }
}

@media (max-width: 600px) {
  .hamburger-btn { display: flex; }

  .topbar { padding: 0 10px; gap: 6px; flex-wrap: nowrap; }
  .topbar-left { min-width: auto; gap: 6px; }
  .topbar-title { font-size: 12px; }
  .topbar-center { gap: 2px; overflow-x: auto; flex-shrink: 1; min-width: 0; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .topbar-center::-webkit-scrollbar { display: none; }
  .topbar-right { min-width: auto; flex-shrink: 0; }

  .topbar-btn { padding: 6px 6px; min-width: 32px; min-height: 32px; touch-action: manipulation; }
  .topbar-btn svg { width: 16px; height: 16px; }

  /* Скрываем второстепенные кнопки на мобильных */
  #btnNewProject,
  #btnLoad,
  #btnExport,
  #btnImport { display: none; }

  .publish-btn {
    padding: 8px 14px;
    white-space: nowrap;
    font-size: 13px;
    animation: pulse-glow 2s ease-in-out infinite;
  }
  .publish-btn span { display: inline; }
  .preview-btn span { display: none; }

  .sidebar {
    position: fixed;
    left: -100%;
    z-index: 200;
    top: var(--topbar-height);
    height: calc(100vh - var(--topbar-height));
    width: 85vw !important;
    min-width: 0 !important;
    max-width: 360px !important;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .sidebar.open { left: 0; }
  .sidebar-nav {
    width: 48px;
    min-width: 48px;
    padding: 6px 4px;
    overflow-y: auto;
    overflow-x: hidden;
  }
  .nav-item { font-size: 8px; padding: 6px 2px; }
  .nav-item span { display: none; }
  .sidebar-content { padding: 12px; }

  .resizer { display: none; }

  .workspace { flex-direction: column; }
  .preview-area { padding: 0; }
  .preview-frame { border-radius: 0; }

  .form-group input[type="text"],
  .form-group input[type="url"],
  .form-group input[type="datetime-local"],
  .form-group textarea,
  .form-group select {
    font-size: 16px; /* предотвращает зум на iOS */
  }

  .decorations-grid { grid-template-columns: repeat(4, 1fr); }
  .themes-grid { grid-template-columns: 1fr; }
  .photo-grid { grid-template-columns: repeat(3, 1fr); }

  /* Полноэкранный предпросмотр — кнопка закрытия крупнее */
  .fullscreen-close { width: 48px; height: 48px; font-size: 28px; top: 12px; right: 12px; }
}