/* ============================================================
   AI Document Management System — KS Aqua Branded Theme
   Matching https://ksaqua.bicoipai.tech/ design language
   Deep navy + magenta gradient + teal accents
   ============================================================ */

/* --- CSS Variables (Design Tokens) --- */
:root {
  /* KS Aqua Primary Palette — from bicoipai.tech */
  --primary: #d946ef;           /* Magenta/fuchsia — headline color */
  --primary-hover: #e879f9;
  --primary-light: rgba(217, 70, 239, 0.10);
  --primary-glow: rgba(217, 70, 239, 0.25);

  /* Accent — Teal/Cyan (KS Aqua water theme) */
  --accent: #06b6d4;
  --accent-hover: #22d3ee;
  --accent-light: rgba(6, 182, 212, 0.10);

  /* Gradient — Magenta to Purple (hero text) */
  --gradient-text: linear-gradient(135deg, #d946ef, #a855f7, #818cf8);
  --gradient-btn: linear-gradient(135deg, #d946ef, #a855f7);
  --gradient-accent: linear-gradient(135deg, #06b6d4, #0ea5e9);

  /* Surfaces — Deep Navy (matches KS Aqua site) */
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1320;
  --bg-card: rgba(15, 19, 35, 0.85);
  --bg-card-hover: rgba(22, 28, 50, 0.9);
  --bg-input: rgba(255, 255, 255, 0.04);
  --bg-sidebar: rgba(8, 11, 22, 0.95);
  --bg-topbar: rgba(10, 14, 26, 0.9);

  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-hover: rgba(255, 255, 255, 0.06);

  /* Text */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #e879f9;
  --text-client: #d946ef;       /* Client name highlight */

  /* Status Colors */
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Security Level Colors */
  --sec-white: #e2e8f0;
  --sec-green: #22c55e;
  --sec-yellow: #f59e0b;
  --sec-red: #ef4444;

  /* Borders */
  --border: rgba(255, 255, 255, 0.06);
  --border-focus: var(--primary);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 24px var(--primary-glow);
  --shadow-glow-cyan: 0 0 20px rgba(6, 182, 212, 0.2);

  /* Dimensions */
  --sidebar-width: 240px;
  --sidebar-collapsed: 64px;
  --topbar-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 14px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  overflow: hidden;
  height: 100vh;
}

/* Starfield-inspired gradient mesh (matches KS Aqua background) */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    radial-gradient(ellipse at 15% 10%, rgba(217, 70, 239, 0.06) 0%, transparent 45%),
    radial-gradient(ellipse at 85% 15%, rgba(6, 182, 212, 0.05) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 50%, rgba(139, 92, 246, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(6, 182, 212, 0.04) 0%, transparent 40%),
    radial-gradient(ellipse at 80% 70%, rgba(217, 70, 239, 0.03) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}

/* Subtle star dots overlay */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.15), transparent),
    radial-gradient(1px 1px at 30% 65%, rgba(255,255,255,0.1), transparent),
    radial-gradient(1px 1px at 55% 15%, rgba(255,255,255,0.12), transparent),
    radial-gradient(1px 1px at 70% 45%, rgba(255,255,255,0.08), transparent),
    radial-gradient(1px 1px at 85% 80%, rgba(255,255,255,0.1), transparent),
    radial-gradient(1px 1px at 45% 85%, rgba(255,255,255,0.06), transparent),
    radial-gradient(1.5px 1.5px at 25% 40%, rgba(255,255,255,0.08), transparent),
    radial-gradient(1.5px 1.5px at 92% 30%, rgba(255,255,255,0.07), transparent);
  pointer-events: none;
  z-index: 0;
}

#app {
  display: flex;
  height: 100vh;
  position: relative;
  z-index: 1;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(217, 70, 239, 0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(217, 70, 239, 0.3); }

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-slow);
  backdrop-filter: blur(24px);
  z-index: 100;
}

.sidebar-header {
  padding: 18px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1.2;
}

.logo-text .logo-client {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: all var(--transition-fast);
}
.sidebar-toggle:hover {
  background: var(--glass-hover);
  color: var(--text-primary);
}

/* Navigation */
.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.nav-item:hover {
  background: var(--glass-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--primary-light);
  color: var(--primary-hover);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--primary);
  border-radius: 0 3px 3px 0;
}

.nav-icon { font-size: 18px; flex-shrink: 0; }
.nav-label { font-weight: 500; font-size: 13px; }
.nav-label-en {
  font-size: 10px;
  color: var(--text-muted);
  display: block;
  margin-top: -2px;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tenant-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 6px 12px;
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  background: var(--glass-bg);
}

.tenant-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
  flex-shrink: 0;
}

.tenant-name { font-weight: 600; color: var(--text-primary); }

/* Language Toggle — 3-way */
.lang-toggle-group {
  display: flex;
  gap: 2px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 2px;
}
.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
  font-weight: 500;
}
.lang-btn:hover {
  color: var(--text-primary);
}
.lang-btn.active {
  background: var(--primary-light);
  color: var(--primary-hover);
  font-weight: 600;
}

/* ============================================================
   MAIN CONTENT AREA
   ============================================================ */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Top Bar */
.topbar {
  height: var(--topbar-height);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: var(--bg-topbar);
  backdrop-filter: blur(24px);
  flex-shrink: 0;
}

.topbar-left { display: flex; align-items: baseline; gap: 12px; }

.page-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-bar-mini {
  position: relative;
}
.search-bar-mini input {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 8px 36px 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  width: 220px;
  transition: all var(--transition-fast);
  font-family: inherit;
}
.search-bar-mini input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
  width: 280px;
}
.search-bar-mini input::placeholder { color: var(--text-muted); }
.search-bar-mini .search-icon {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  pointer-events: none;
}

.system-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}
.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ============================================================
   PAGE CONTAINER
   ============================================================ */
.page-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
}

.page { display: none; }
.page.active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   CLIENT HEADER BANNER (KS Aqua branded)
   ============================================================ */
.client-banner {
  margin-bottom: 24px;
}
.client-banner .banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 8px;
}
.client-banner .banner-tag::before {
  content: '✦';
  color: var(--primary);
}
.client-banner .banner-client {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-client);
  margin-bottom: 4px;
}
.client-banner h2 {
  font-size: 36px;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 6px;
}
.client-banner .banner-desc {
  font-size: 14px;
  color: var(--text-muted);
}

/* Feature pills */
.feature-pills {
  display: flex;
  gap: 24px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.feature-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}
.feature-pill::before {
  content: '●';
  font-size: 8px;
  color: var(--accent);
}

/* ============================================================
   DASHBOARD
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  backdrop-filter: blur(10px);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--gradient-btn);
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.stat-card:hover {
  border-color: rgba(217, 70, 239, 0.2);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}
.stat-card:hover::before { opacity: 1; }

.stat-icon {
  font-size: 28px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
}

.stat-value {
  display: block;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}
.stat-change {
  font-size: 11px;
  color: var(--success);
  font-weight: 600;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
  overflow: hidden;
}
.card.full-width { grid-column: 1 / -1; }

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-header h2 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body { padding: 16px 20px; }

.badge {
  background: var(--primary-light);
  color: var(--primary-hover);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

/* File type chart */
.file-type-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.type-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}
.type-label {
  width: 60px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}
.type-track {
  flex: 1;
  height: 8px;
  background: var(--bg-input);
  border-radius: 4px;
  overflow: hidden;
}
.type-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.type-count {
  width: 30px;
  text-align: right;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Recent list */
.recent-list { display: flex; flex-direction: column; gap: 8px; }
.recent-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.recent-item:hover { background: var(--glass-hover); }
.recent-icon { font-size: 20px; }
.recent-name {
  flex: 1;
  font-size: 13px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.recent-date { font-size: 11px; color: var(--text-muted); }
.recent-version {
  font-size: 10px;
  background: var(--glass-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-accent);
  border: 1px solid rgba(217, 70, 239, 0.15);
}

/* ============================================================
   FILE BROWSER
   ============================================================ */
.browser-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 16px;
  height: calc(100vh - var(--topbar-height) - 72px);
}

.folder-tree {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.tree-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.tree-header h3 { font-size: 13px; font-weight: 600; }

.tree-content {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.tree-item {
  display: flex;
  align-items: center;
  padding: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}
.tree-item:hover {
  background: var(--glass-hover);
  color: var(--text-primary);
}
.tree-item.active {
  background: var(--primary-light);
  color: var(--primary-hover);
}
.tree-item-main {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  flex: 1;
  min-width: 0;
}
.tree-folder-icon { font-size: 16px; }
.tree-folder-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree-count {
  font-size: 10px;
  background: var(--glass-bg);
  padding: 1px 6px;
  border-radius: 10px;
  color: var(--text-muted);
}

/* Folder action buttons (rename, delete) — visible on hover */
.folder-actions {
  display: none;
  align-items: center;
  gap: 2px;
  padding-right: 8px;
  flex-shrink: 0;
}
.tree-item:hover .folder-actions { display: flex; }

/* Security level dots */
.security-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}
.security-dot.white { background: var(--sec-white); }
.security-dot.green { background: var(--sec-green); }
.security-dot.yellow { background: var(--sec-yellow); }
.security-dot.red { background: var(--sec-red); }

/* File list */
.file-list {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.file-list-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.current-path {
  font-size: 13px;
  color: var(--text-secondary);
  font-family: 'SF Mono', monospace;
}

.view-toggle { display: flex; gap: 4px; }
.view-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  transition: all var(--transition-fast);
}
.view-btn.active, .view-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.file-list-content {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.file-row {
  display: flex;
  align-items: center;
  padding: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
  font-size: 13px;
  position: relative;
}
.file-row:hover { background: var(--glass-hover); }

.file-row-main {
  display: grid;
  grid-template-columns: 28px 1fr 80px 80px 60px 100px;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  flex: 1;
  min-width: 0;
}
.file-icon { font-size: 18px; }
.file-name { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-size { color: var(--text-muted); font-size: 12px; text-align: right; }
.file-version { color: var(--text-accent); font-size: 11px; text-align: center; }
.file-security { text-align: center; }
.file-date { color: var(--text-muted); font-size: 11px; text-align: right; }

/* File action buttons (download, move, delete) — visible on hover */
.file-actions {
  display: none;
  align-items: center;
  gap: 2px;
  padding-right: 8px;
  flex-shrink: 0;
}
.file-row:hover .file-actions { display: flex; }

/* Generic action button (used in folder and file rows) */
.action-btn {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1;
  transition: all var(--transition-fast);
  opacity: 0.7;
}
.action-btn:hover {
  background: var(--glass-bg);
  border-color: var(--border);
  opacity: 1;
  transform: scale(1.1);
}
.action-btn.action-delete:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
}

/* Modal action buttons (download / delete in document detail) */
.modal-doc-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.action-btn-modal {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px !important;
  border-radius: 8px !important;
  font-size: 13px !important;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.action-btn-modal:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-1px);
}
.action-btn-danger {
  color: var(--danger) !important;
}
.action-btn-danger:hover {
  background: rgba(239, 68, 68, 0.12) !important;
  border-color: rgba(239, 68, 68, 0.3) !important;
}

/* Move dialog modal — smaller than doc detail modal */
.move-modal {
  max-width: 480px;
}

/* ============================================================
   SEARCH PAGE
   ============================================================ */
.search-page { max-width: 900px; margin: 0 auto; }

.search-header { margin-bottom: 24px; }

.search-input-large {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.search-input-large input {
  flex: 1;
  background: var(--bg-card);
  border: 2px solid var(--border);
  color: var(--text-primary);
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-family: inherit;
  transition: all var(--transition-fast);
}
.search-input-large input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}
.search-input-large input::placeholder { color: var(--text-muted); }

.search-btn {
  background: var(--gradient-btn);
  color: white;
  border: none;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}
.search-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.search-filters {
  display: flex;
  gap: 10px;
}
.search-filters select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
}
.search-filters select:focus {
  outline: none;
  border-color: var(--primary);
}

/* Search Results */
.search-results { display: flex; flex-direction: column; gap: 12px; }

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  cursor: pointer;
  transition: all var(--transition-normal);
}
.result-card:hover {
  border-color: rgba(217, 70, 239, 0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.result-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.result-icon { font-size: 22px; }
.result-title {
  font-weight: 600;
  font-size: 15px;
  flex: 1;
}
.result-path {
  font-size: 11px;
  color: var(--text-muted);
  font-family: monospace;
}

.result-snippet {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 8px;
}
.result-snippet mark {
  background: var(--primary-light);
  color: var(--primary-hover);
  padding: 0 3px;
  border-radius: 3px;
}

.result-meta {
  display: flex;
  gap: 16px;
  font-size: 11px;
  color: var(--text-muted);
}

.result-keywords {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.keyword-tag {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  color: var(--text-accent);
}

/* ============================================================
   UPLOAD PAGE
   ============================================================ */
.upload-zone {
  border: 2px dashed rgba(217, 70, 239, 0.2);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
  background: var(--bg-card);
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: var(--shadow-glow);
}
.upload-zone.drag-over { transform: scale(1.01); }

.upload-icon { font-size: 48px; margin-bottom: 16px; }
.upload-zone h2 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.upload-zone p { color: var(--text-secondary); }
.upload-link { color: var(--primary-hover); cursor: pointer; text-decoration: underline; }
.upload-formats { margin-top: 16px; font-size: 12px; color: var(--text-muted); }

.upload-queue { margin-top: 24px; }
.upload-queue h3 { font-size: 15px; margin-bottom: 12px; }

.upload-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}
.upload-item-name { flex: 1; font-size: 13px; font-weight: 500; }
.upload-item-size { font-size: 12px; color: var(--text-muted); }
.upload-item-status {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 600;
}
.upload-item-status.uploading { background: rgba(59,130,246,0.15); color: var(--info); }
.upload-item-status.done { background: rgba(34,197,94,0.15); color: var(--success); }
.upload-item-status.error { background: rgba(239,68,68,0.15); color: var(--danger); }

.upload-progress {
  width: 100px;
  height: 4px;
  background: var(--bg-input);
  border-radius: 2px;
  overflow: hidden;
}
.upload-progress-fill {
  height: 100%;
  background: var(--gradient-btn);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* ============================================================
   PROCESSING QUEUE PAGE
   ============================================================ */
.processing-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.proc-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}
.proc-stat-value {
  font-size: 24px;
  font-weight: 700;
  display: block;
}
.proc-stat-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.proc-table {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.proc-table-header {
  display: grid;
  grid-template-columns: 1fr 120px 80px 140px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.proc-table-row {
  display: grid;
  grid-template-columns: 1fr 120px 80px 140px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  align-items: center;
}
.proc-table-row:last-child { border-bottom: none; }
.proc-table-row:hover { background: var(--glass-hover); }

.status-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}
.status-badge.pending { background: rgba(245,158,11,0.12); color: var(--warning); }
.status-badge.processing { background: rgba(59,130,246,0.12); color: var(--info); }
.status-badge.completed { background: rgba(34,197,94,0.12); color: var(--success); }
.status-badge.failed { background: rgba(239,68,68,0.12); color: var(--danger); }
.status-badge.retry { background: rgba(168,85,247,0.12); color: #a855f7; }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
}

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

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h2 {
  font-size: 18px;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all var(--transition-fast);
}
.modal-close:hover {
  background: var(--glass-hover);
  color: var(--text-primary);
}

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 24px 24px;
}

.modal-tabs {
  display: flex;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  z-index: 1;
}

.tab-btn {
  background: none;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
  font-weight: 500;
}
.tab-btn:hover { background: var(--glass-hover); color: var(--text-primary); }
.tab-btn.active {
  background: var(--primary-light);
  color: var(--primary-hover);
  border-color: rgba(217, 70, 239, 0.2);
}

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.2s ease; }

/* Summary tab */
.summary-content { font-size: 14px; line-height: 1.8; color: var(--text-secondary); }
.summary-content h1, .summary-content h2, .summary-content h3 {
  color: var(--text-primary);
  margin-top: 16px;
  margin-bottom: 8px;
}
.summary-content strong { color: var(--text-primary); }

/* Version timeline */
.version-timeline { position: relative; padding-left: 24px; }
.version-timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  opacity: 0.3;
}
.version-item {
  position: relative;
  padding: 12px 16px;
  margin-bottom: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.version-item::before {
  content: '';
  position: absolute;
  left: -20px; top: 16px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--bg-secondary);
  box-shadow: 0 0 8px var(--primary-glow);
}
.version-number { font-weight: 700; font-size: 14px; color: var(--primary-hover); }
.version-date { font-size: 11px; color: var(--text-muted); margin-left: 8px; }
.version-hash { font-family: monospace; font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* Movement trail */
.movement-item {
  display: flex;
  gap: 12px;
  padding: 10px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.movement-item:last-child { border-bottom: none; }
.movement-action { font-weight: 600; min-width: 80px; }
.movement-detail { color: var(--text-secondary); flex: 1; }
.movement-date { color: var(--text-muted); font-size: 11px; white-space: nowrap; }

/* ============================================================
   COMMON ELEMENTS
   ============================================================ */
.btn {
  background: var(--gradient-btn);
  color: white;
  border: none;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-glow); }
.btn-sm { padding: 5px 12px; font-size: 12px; }

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 20px;
  font-size: 14px;
}

/* ============================================================
   RESPONSIVE — TABLET (≤1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .browser-layout { grid-template-columns: 200px 1fr; }
  .processing-stats { grid-template-columns: repeat(3, 1fr); }

  .search-bar-mini { display: none; }

  .page-container { padding: 20px; }

  .topbar { padding: 0 20px; }

  .client-banner h2 { font-size: 28px; }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤768px)
   ============================================================ */
@media (max-width: 768px) {
  /* --- Sidebar: off-canvas overlay --- */
  .sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    bottom: 0;
    width: 280px !important;
    z-index: 1000;
    transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: none;
  }
  .sidebar.open {
    left: 0;
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.5);
  }

  /* Dark backdrop overlay */
  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    z-index: 999;
  }
  .sidebar-backdrop.visible {
    display: block;
    animation: fadeIn 0.2s ease;
  }

  /* Show the mobile hamburger in topbar */
  .mobile-menu-btn {
    display: flex !important;
  }

  /* Top bar adjustments */
  .topbar {
    padding: 0 16px;
    height: 56px;
    gap: 8px;
  }
  .page-title { font-size: 16px; }
  .page-subtitle { display: none; }
  .search-bar-mini { display: none; }
  .system-status .status-text { display: none; }

  /* Page container */
  .page-container {
    padding: 16px;
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  }

  /* --- Client Banner (compact) --- */
  .client-banner { margin-bottom: 16px; }
  .client-banner .banner-client { font-size: 13px; }
  .client-banner h2 {
    font-size: 22px;
    letter-spacing: -0.5px;
  }
  .client-banner .banner-desc { font-size: 12px; }

  .feature-pills {
    flex-wrap: wrap;
    gap: 8px 16px;
  }
  .feature-pill { font-size: 11px; }

  /* --- Stats grid: 2 columns on phone --- */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
  }
  .stat-card {
    padding: 14px;
    gap: 10px;
  }
  .stat-icon {
    font-size: 22px;
    width: 38px;
    height: 38px;
  }
  .stat-value {
    font-size: 22px;
  }
  .stat-label { font-size: 11px; }

  /* Dashboard grid: single column */
  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* --- File Browser: stacked layout --- */
  .browser-layout {
    grid-template-columns: 1fr;
    height: auto;
    gap: 12px;
  }
  .folder-tree {
    max-height: 200px;
  }
  .file-list-content { min-height: 300px; }

  .file-row-main {
    grid-template-columns: 28px 1fr 60px;
    padding: 12px;
  }
  .file-version, .file-security, .file-date { display: none; }

  /* On mobile, always show action buttons (no hover) */
  .file-actions { display: flex !important; }
  .folder-actions { display: flex !important; }

  /* Tree items — touch friendly */
  .tree-item-main {
    padding: 12px;
    min-height: 44px;
  }

  /* --- Search: compact --- */
  .search-input-large {
    flex-direction: column;
  }
  .search-input-large input {
    font-size: 14px;
    padding: 12px 16px;
  }
  .search-btn {
    padding: 12px;
    width: 100%;
  }
  .search-filters {
    flex-direction: column;
    gap: 8px;
  }
  .search-filters select {
    width: 100%;
    padding: 10px 14px;
    min-height: 44px;
  }

  .result-card { padding: 14px; }
  .result-header { flex-wrap: wrap; }
  .result-path {
    width: 100%;
    margin-top: 4px;
  }

  /* --- Upload: compact --- */
  .upload-zone {
    padding: 40px 20px;
  }
  .upload-zone h2 { font-size: 16px; }
  .upload-icon { font-size: 36px; }

  .upload-item {
    flex-wrap: wrap;
    gap: 8px;
  }
  .upload-progress { width: 100%; order: 10; }

  /* --- Processing Queue --- */
  .processing-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .proc-stat { padding: 12px 8px; }
  .proc-stat-value { font-size: 20px; }
  .proc-stat-label { font-size: 10px; }

  .proc-table-header {
    grid-template-columns: 1fr 90px;
  }
  .proc-table-header span:nth-child(3),
  .proc-table-header span:nth-child(4) { display: none; }

  .proc-table-row {
    grid-template-columns: 1fr 90px;
  }
  .proc-table-row span:nth-child(3),
  .proc-table-row span:nth-child(4) { display: none; }

  /* --- Modal: near full-screen --- */
  .modal {
    width: 95%;
    max-width: 95%;
    max-height: 92vh;
    border-radius: var(--radius-md);
  }
  .modal-header {
    padding: 16px;
  }
  .modal-header h2 { font-size: 15px; }
  .modal-body { padding: 0 16px 16px; }

  .modal-tabs {
    overflow-x: auto;
    gap: 2px;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
  }
  .tab-btn {
    padding: 8px 12px;
    font-size: 12px;
    white-space: nowrap;
    flex-shrink: 0;
  }

  .movement-item {
    flex-direction: column;
    gap: 4px;
  }
  .movement-date {
    align-self: flex-end;
  }

  /* Footer — mobile */
  body > div[style*="position:fixed"][style*="bottom:0"] {
    left: 0 !important;
    font-size: 9px !important;
    padding: 6px 12px !important;
  }
}

/* ============================================================
   RESPONSIVE — SMALL PHONES (≤480px)
   ============================================================ */
@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .stat-card {
    flex-direction: row;
    padding: 12px 16px;
  }

  .processing-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .client-banner h2 { font-size: 20px; }
  .client-banner .banner-desc { display: none; }
  .feature-pills { display: none; }

  .lang-toggle-group {
    width: 100%;
    justify-content: center;
  }
  .lang-btn {
    flex: 1;
    text-align: center;
    padding: 6px;
  }

  .result-keywords { display: none; }
}

/* ============================================================
   MOBILE-ONLY ELEMENTS
   ============================================================ */

/* Mobile hamburger button — hidden on desktop, shown on mobile */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 20px;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.mobile-menu-btn:hover {
  background: var(--glass-hover);
  border-color: var(--primary);
}

/* Touch target minimum size */
@media (pointer: coarse) {
  .nav-item {
    min-height: 48px;
    padding: 12px 14px;
  }
  .tree-item { min-height: 48px; }
  .file-row { min-height: 48px; }
  .recent-item { min-height: 48px; }
  .btn, .btn-sm { min-height: 44px; }
  .tab-btn { min-height: 44px; }
  .view-btn { min-height: 36px; min-width: 36px; }
}

/* Sidebar backdrop (always in DOM, only visible on mobile) */
.sidebar-backdrop {
  display: none;
}