/* ==========================================================================
   STUDIO TABART - DESIGN NEWS AI DASHBOARD STYLESHEET
   Theme: High-Tech Glassmorphism, Calm Slate & Indigo
   ========================================================================== */

:root {
  /* Dark Mode (Default) */
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.78);
  --bg-card-hover: rgba(30, 41, 59, 0.9);
  --bg-surface: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 102, 241, 0.4);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --accent-cyan: #0ea5e9;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  --nav-bg: rgba(9, 13, 22, 0.85);
  --nav-border: rgba(255, 255, 255, 0.07);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #ffffff;
  --bg-surface: rgba(0, 0, 0, 0.03);
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(79, 70, 229, 0.35);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-glow: rgba(79, 70, 229, 0.15);
  --accent-cyan: #0284c7;
  --accent-emerald: #059669;
  --accent-amber: #d97706;

  --nav-bg: rgba(248, 250, 252, 0.85);
  --nav-border: rgba(0, 0, 0, 0.06);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Pretendard', 'Inter', -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s, color 0.3s;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nav-border);
  padding: 0.85rem 1.5rem;
}
.nav-container {
  max-width: 1380px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px var(--accent-glow);
}
.logo-icon svg { width: 20px; height: 20px; }
.logo-text { display: flex; align-items: center; gap: 0.5rem; }
.brand-title { font-size: 1.15rem; font-weight: 800; }
.accent-dot { color: var(--accent); }
.brand-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--accent);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.action-btn-header {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.9rem;
  border-radius: 10px;
  font-size: 0.84rem;
  font-weight: 600;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}
.action-btn-header:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}
.action-btn-header.primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px var(--accent-glow);
}
.action-btn-header.primary:hover {
  background: var(--accent-hover);
}
.action-btn-header svg, .btn-icon svg { width: 16px; height: 16px; }

/* Admin Lock Button */
.admin-lock-btn {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.3);
  color: var(--accent-amber);
}
.admin-lock-btn:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: var(--accent-amber);
}
.admin-lock-btn.unlocked {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
}
.admin-lock-btn.unlocked:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--accent-emerald);
}

.btn-icon {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}
.btn-icon:hover, .theme-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}
.theme-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

/* Hero Section */
.hero-section {
  padding: 3rem 1.5rem 2rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--nav-border);
}
.hero-inner {
  max-width: 1380px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
}
.badge-icon { width: 14px; height: 14px; color: var(--accent); }
.hero-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 0.5rem;
}
.hero-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  max-width: 750px;
  margin-bottom: 2rem;
}

/* Stats Bar */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  backdrop-filter: blur(10px);
}
.stat-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.stat-icon-box svg { width: 22px; height: 22px; }
.icon-indigo { background: rgba(99, 102, 241, 0.15); color: var(--accent); }
.icon-emerald { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }
.icon-amber { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.icon-cyan { background: rgba(14, 165, 233, 0.15); color: var(--accent-cyan); }
.stat-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }
.stat-value { font-size: 1.45rem; font-weight: 800; color: var(--text-primary); }
.stat-value.text-sm { font-size: 1.05rem; }

/* Main Container & Toolbar */
.main-container {
  max-width: 1380px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}
/* ==========================================================================
   Modern 2-Tier Toolbar & Segmented Sort Buttons
   ========================================================================== */
.toolbar-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px);
}

.category-tabs {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.cat-btn {
  background: rgba(30, 41, 59, 0.5) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-secondary) !important;
  padding: 0.5rem 1.15rem;
  border-radius: 9999px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  outline: none;
}
.cat-btn:hover {
  color: var(--text-primary) !important;
  border-color: var(--accent) !important;
  background: rgba(99, 102, 241, 0.12) !important;
  transform: translateY(-1px);
}
.cat-btn.active {
  background: linear-gradient(135deg, #6366f1, #4f46e5) !important;
  color: #ffffff !important;
  border-color: transparent !important;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}
.bookmark-tab.active {
  background: linear-gradient(135deg, #f59e0b, #d97706) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
}

/* Sub-toolbar: Sort Segments (Left) + Search (Right) */
.sub-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.sort-segment-group {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.35rem 0.5rem;
  flex-wrap: wrap;
}

.sort-group-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: 0 0.5rem 0 0.35rem;
}
.sort-group-label svg { width: 14px; height: 14px; color: var(--accent); }

.sort-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent !important;
  border: 1px solid transparent !important;
  color: var(--text-secondary) !important;
  padding: 0.42rem 0.95rem;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  outline: none;
}
.sort-btn svg { width: 14px; height: 14px; opacity: 0.75; color: var(--text-secondary); }
.sort-btn:hover {
  color: var(--text-primary) !important;
  background: rgba(255, 255, 255, 0.06) !important;
}
.sort-btn.active {
  background: rgba(99, 102, 241, 0.18) !important;
  color: #a5b4fc !important;
  border: 1px solid rgba(99, 102, 241, 0.5) !important;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.25);
  font-weight: 700;
}
.sort-btn.active svg { opacity: 1; color: #818cf8; }

/* Search Box */
.search-wrap {
  position: relative;
  min-width: 280px;
  flex: 1;
  max-width: 400px;
}
.search-wrap input {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.4rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 0.86rem;
  outline: none;
  transition: all 0.2s ease;
}
.search-wrap input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  background: rgba(15, 23, 42, 0.9);
}
.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--text-muted);
}

/* Trending Keywords */
.trending-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  padding: 0.65rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  flex-wrap: wrap;
}
.trending-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
}
.trending-label svg { width: 14px; height: 14px; }
.trending-tags {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.trend-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}
.trend-pill:hover {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}
.trend-count {
  font-size: 0.65rem;
  opacity: 0.7;
  margin-left: 2px;
}

/* Articles Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}
.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}
.article-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}
.cat-badge-card {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent);
  border: 1px solid rgba(99, 102, 241, 0.3);
}
.publisher-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}
.card-stars {
  font-size: 0.85rem;
  color: var(--accent-amber);
  font-weight: bold;
}
.article-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-primary);
  margin-bottom: 1rem;
}
.ai-summary-box {
  background: var(--bg-surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 0.85rem 1rem;
  margin-bottom: 1.1rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.ai-summary-box strong { color: var(--text-primary); }
.keywords-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}
.kw-pill {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 5px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
.kw-pill:hover {
  background: var(--bg-card-hover);
  color: var(--accent);
}
.bundle-count-pill {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 9999px;
  background: rgba(14, 165, 233, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(14, 165, 233, 0.3);
}

/* Related News Bundle Accordion */
.related-bundle-wrap {
  margin-bottom: 1rem;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.4);
  border: 1px dashed rgba(255, 255, 255, 0.1);
  overflow: hidden;
  transition: all 0.2s ease;
}
.related-bundle-wrap:hover {
  border-color: rgba(14, 165, 233, 0.3);
}
.related-toggle-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.85rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.78rem;
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
}
.related-toggle-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}
.related-toggle-btn.active .toggle-arrow {
  transform: rotate(180deg);
}
.toggle-arrow {
  transition: transform 0.2s ease;
  color: var(--text-muted);
}
.related-news-box {
  display: none;
  padding: 0.4rem 0.85rem 0.75rem 0.85rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
}
.related-news-box.active {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.related-news-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.2s ease;
}
.related-news-item:hover {
  background: rgba(255, 255, 255, 0.06);
}
.related-news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
}
.related-pub-badge {
  font-weight: 700;
  color: var(--accent-cyan);
}
.related-date {
  color: var(--text-muted);
}
.related-news-title {
  font-size: 0.8rem;
  color: var(--text-primary);
  text-decoration: none;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-news-title:hover {
  color: var(--accent);
  text-decoration: underline;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.date-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.card-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-card {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}
.btn-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  color: var(--accent);
}
.btn-card.bookmark-active {
  color: var(--accent-amber);
  border-color: rgba(245, 158, 11, 0.4);
}
.btn-card.primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}
.btn-card.primary:hover { background: var(--accent-hover); color: #fff; }
.btn-card svg { width: 14px; height: 14px; }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal-overlay.active { display: flex; }
.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  width: 100%;
  max-width: 780px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-badge-group { display: flex; align-items: center; gap: 0.6rem; }
.modal-category {
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(99, 102, 241, 0.2);
  color: var(--accent);
}
.modal-publisher { font-size: 0.8rem; color: var(--text-muted); }
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
}
.modal-close:hover { color: var(--text-primary); }
.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}
.modal-title { font-size: 1.35rem; font-weight: 800; margin-bottom: 0.5rem; line-height: 1.4; }
.modal-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 1.25rem; }
.modal-ai-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-hover);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.ai-box-title {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.ai-box-title svg { width: 16px; height: 16px; }
.ai-summary-text { font-size: 0.92rem; line-height: 1.7; color: var(--text-primary); }
.modal-keywords { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; }
.section-heading { font-size: 0.9rem; font-weight: 700; color: var(--text-muted); margin-bottom: 0.6rem; }
.raw-content-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-height: 250px;
  overflow-y: auto;
  padding: 1rem;
  background: var(--bg-surface);
  border-radius: 10px;
}
.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}
.btn-secondary {
  padding: 0.6rem 1.2rem;
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.2rem;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary:hover { background: var(--accent-hover); }

/* Email Dispatch & Live Preview Modal */
.modal-card-lg {
  max-width: 1080px;
  width: 95%;
  height: 90vh;
}
.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.mail-header-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mail-header-icon svg { width: 20px; height: 20px; }
.modal-head-title { font-size: 1.2rem; font-weight: 800; }
.modal-head-desc { font-size: 0.8rem; color: var(--text-muted); }

.mail-modal-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  overflow: hidden;
  height: calc(100% - 130px);
}
.mail-controls-pane {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  overflow-y: auto;
}
.form-group-mail {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.mail-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
}
.mail-label svg { width: 14px; height: 14px; color: var(--accent); }
.mail-input, .mail-select, .mail-textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-family: inherit;
  outline: none;
  transition: all 0.2s;
}
.mail-textarea {
  resize: vertical;
  min-height: 70px;
  line-height: 1.4;
}
.mail-input:focus, .mail-select:focus, .mail-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.recipient-count-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent);
  border: 1px solid rgba(99, 102, 241, 0.25);
}
.mail-hint-text {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.3;
  margin-top: 0.2rem;
}
.quick-mail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.35rem;
}
.q-tag {
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: 5px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
.q-tag:hover {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}
.btn-preview-refresh {
  margin-top: auto;
  padding: 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  color: var(--accent);
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  transition: all 0.2s;
}
.btn-preview-refresh:hover {
  background: var(--accent);
  color: #fff;
}
.btn-preview-refresh svg { width: 15px; height: 15px; }

.mail-preview-pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  height: 100%;
}
.preview-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.preview-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--text-primary);
}
.preview-device { display: flex; align-items: center; gap: 0.3rem; }
.preview-device svg { width: 14px; height: 14px; color: var(--accent); }
.preview-frame-wrap {
  flex: 1;
  background: #f1f5f9;
  overflow: hidden;
}
.mail-preview-iframe {
  width: 100%;
  height: 100%;
  border: none;
}
.btn-mail-send {
  background: linear-gradient(135deg, var(--accent), #4338ca);
  box-shadow: 0 4px 14px var(--accent-glow);
}

/* Dynamic Schedules UI */
.schedule-btn {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.3);
  color: var(--accent);
}
.schedule-btn:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--accent);
}

.schedules-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.schedule-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  transition: all 0.2s;
}
.schedule-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}
.schedule-card.disabled {
  opacity: 0.6;
}

.schedule-info-main {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}
.schedule-title-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.schedule-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}
.schedule-type-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 5px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.schedule-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.schedule-meta-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.schedule-controls {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Time Input Box */
.time-box {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.25rem 0.6rem;
}
.time-input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
}
.btn-save-time {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 0.2rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
}

/* Toggle Switch */
.switch-wrap {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}
.switch-wrap input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: rgba(255, 255, 255, 0.15);
  transition: .3s;
  border-radius: 24px;
  border: 1px solid var(--border);
}
.switch-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}
input:checked + .switch-slider {
  background-color: var(--accent-emerald);
  border-color: transparent;
}
input:checked + .switch-slider:before {
  transform: translateX(20px);
}

.btn-run-task {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.8rem;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
}
.btn-run-task:hover {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}
.btn-run-task svg { width: 13px; height: 13px; }

@media (max-width: 900px) {
  .mail-modal-grid { grid-template-columns: 1fr; overflow-y: auto; }
  .modal-card-lg { height: 95vh; }
  .schedule-card { flex-direction: column; align-items: flex-start; }
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.85rem 1.25rem;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  font-weight: 600;
  z-index: 10000;
  display: none;
  animation: slideIn 0.3s ease;
}
@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.loading-box {
  grid-column: span 2;
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-muted);
}
.spin-icon {
  width: 32px;
  height: 32px;
  animation: spin 1s infinite linear;
  margin-bottom: 0.75rem;
  color: var(--accent);
}
@keyframes spin { 100% { transform: rotate(360deg); } }

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--nav-border);
  padding: 1.5rem;
  margin-top: auto;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.footer-inner {
  max-width: 1380px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .articles-grid { grid-template-columns: 1fr; }
  .loading-box { grid-column: span 1; }
}