@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0D1B2A;
  --bg-secondary: #152238;
  --bg-card: #1E3352;
  --bg-card-hover: #243d63;
  --border: rgba(255,255,255,0.08);
  --border-light: rgba(255,255,255,0.12);
  --primary: #4A9EE8;
  --primary-dark: #2980c4;
  --accent: #D4A94B;
  --accent-dark: #b8902f;
  --text: #E8EFF8;
  --text-secondary: #8BA3BE;
  --text-muted: #5d7a96;
  --success: #27AE60;
  --warning: #F39C12;
  --error: #E74C3C;
  --sidebar-width: 260px;
  --header-height: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
  --transition: 0.2s ease;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── LAYOUT ─────────────────────────────────────── */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ─────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 200;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-logo .logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.sidebar-logo .logo-text {
  display: flex; flex-direction: column;
}
.sidebar-logo .logo-title {
  font-size: 14px; font-weight: 700;
  color: var(--text); line-height: 1.2;
}
.sidebar-logo .logo-sub {
  font-size: 11px; color: var(--text-secondary);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-section-title {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding: 8px 12px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 2px;
  border: 1px solid transparent;
}

.nav-item:hover {
  background: rgba(74,158,232,0.08);
  color: var(--text);
  border-color: rgba(74,158,232,0.15);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(74,158,232,0.18), rgba(212,169,75,0.08));
  color: var(--primary);
  border-color: rgba(74,158,232,0.25);
}

.nav-item .nav-icon { font-size: 17px; width: 20px; text-align: center; }

.nav-item .nav-badge {
  margin-left: auto;
  background: var(--primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 20px;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* ── MAIN CONTENT ─────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── TOPBAR ─────────────────────────────────────── */
.topbar {
  height: var(--header-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  flex: 1;
}

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

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
  padding: 4px;
}

/* ── PAGE CONTENT ─────────────────────────────────── */
.page-content {
  flex: 1;
  padding: 28px 30px;
}

/* ── VIEWS ─────────────────────────────────────── */
.view { display: none; }
.view.active { display: block; }

/* ── STAT CARDS ─────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition);
  cursor: default;
}

.stat-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.stat-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.stat-icon.blue { background: rgba(74,158,232,0.15); }
.stat-icon.gold { background: rgba(212,169,75,0.15); }
.stat-icon.green { background: rgba(39,174,96,0.15); }
.stat-icon.purple { background: rgba(155,89,182,0.15); }

.stat-value {
  font-size: 28px; font-weight: 800;
  color: var(--text);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ── QUICK SEARCH ─────────────────────────────────── */
.quick-search-box {
  background: linear-gradient(135deg, #0f2540, #1a3a5c);
  border: 1px solid rgba(74,158,232,0.3);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 28px;
  position: relative;
  overflow: hidden;
}

.quick-search-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(74,158,232,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.quick-search-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}

.quick-search-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.search-input-wrap {
  position: relative;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--text-muted);
}

.search-input {
  width: 100%;
  padding: 14px 50px 14px 48px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: all var(--transition);
}

.search-input::placeholder { color: var(--text-muted); }

.search-input:focus {
  border-color: var(--primary);
  background: rgba(74,158,232,0.06);
  box-shadow: 0 0 0 3px rgba(74,158,232,0.12);
}

.search-clear {
  position: absolute;
  right: 14px;
  top: 50%; transform: translateY(-50%);
  background: none; border: none;
  color: var(--text-muted);
  cursor: pointer; font-size: 18px;
  display: none;
}

.search-input:not(:placeholder-shown) + .search-clear { display: block; }

/* ── ADVANCED SEARCH ─────────────────────────────────── */
.search-panel {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 20px;
  align-items: start;
}

.filters-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: sticky;
  top: calc(var(--header-height) + 20px);
}

.filter-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.filter-group { margin-bottom: 18px; }

.filter-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  display: block;
}

.filter-select, .filter-input, .filter-date {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: border-color var(--transition);
}

.filter-select:focus, .filter-input:focus, .filter-date:focus {
  border-color: var(--primary);
}

.filter-select option { background: var(--bg-card); }

/* ── RESULTS TABLE ─────────────────────────────────── */
.results-area { flex: 1; min-width: 0; }

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.results-count {
  font-size: 13px;
  color: var(--text-secondary);
}

.results-count strong { color: var(--text); }

.table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead th {
  background: var(--bg-secondary);
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

thead th:hover { color: var(--text); }
thead th .sort-icon { margin-left: 4px; opacity: 0.5; }
thead th.sorted .sort-icon { opacity: 1; color: var(--primary); }

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
  cursor: pointer;
}

tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(74,158,232,0.06); }

tbody td {
  padding: 12px 16px;
  color: var(--text);
  vertical-align: middle;
}

.td-konu {
  max-width: 380px;
}
.td-konu .konu-text {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-blue { background: rgba(74,158,232,0.15); color: var(--primary); }
.badge-gold { background: rgba(212,169,75,0.15); color: var(--accent); }
.badge-green { background: rgba(39,174,96,0.15); color: var(--success); }
.badge-red { background: rgba(231,76,60,0.15); color: var(--error); }
.badge-purple { background: rgba(155,89,182,0.15); color: #9B59B6; }

/* ── PAGINATION ─────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 16px;
  border-top: 1px solid var(--border);
}

.page-btn {
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  font-family: 'Inter', sans-serif;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}

.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 700;
}
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* ── BUTTONS ─────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 13.5px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(74,158,232,0.3); }

.btn-accent {
  background: var(--accent);
  color: #1a1200;
  border-color: var(--accent);
}
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border-light);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-danger {
  background: transparent;
  color: var(--error);
  border-color: rgba(231,76,60,0.3);
}
.btn-danger:hover { background: rgba(231,76,60,0.1); }

.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 13px 28px; font-size: 15px; }
.btn-icon { width: 36px; height: 36px; padding: 0; justify-content: center; font-size: 16px; }

/* ── MODAL ─────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.modal-title { font-size: 17px; font-weight: 700; }

.modal-close {
  background: none; border: none;
  color: var(--text-secondary);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--text); }

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

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-shrink: 0;
}

/* ── FORMS ─────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-control {
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13.5px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(74,158,232,0.1);
}

.form-control::placeholder { color: var(--text-muted); }

textarea.form-control { min-height: 100px; }

/* ── DETAIL VIEW ─────────────────────────────────── */
.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 20px;
}

.detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.detail-konu {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.detail-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}

.detail-section { margin-bottom: 20px; }
.detail-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent);
  margin-bottom: 10px;
}

.detail-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ── IMPORT PAGE ─────────────────────────────────── */
.import-zone {
  border: 2px dashed var(--border-light);
  border-radius: 16px;
  padding: 48px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 20px;
}

.import-zone:hover, .import-zone.drag-over {
  border-color: var(--primary);
  background: rgba(74,158,232,0.04);
}

.import-zone-icon { font-size: 48px; margin-bottom: 16px; }
.import-zone-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.import-zone-sub { font-size: 13px; color: var(--text-secondary); }

/* ── PROGRESS ─────────────────────────────────── */
.progress-bar-wrap {
  background: var(--border);
  border-radius: 100px;
  height: 6px;
  overflow: hidden;
  margin: 12px 0;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 100px;
  transition: width 0.3s ease;
}

/* ── TOAST ─────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  animation: toastIn 0.3s ease;
  max-width: 360px;
}

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

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--error); }
.toast.info { border-left: 3px solid var(--primary); }
.toast.warning { border-left: 3px solid var(--warning); }

/* ── EMPTY STATE ─────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state-icon { font-size: 52px; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { font-size: 17px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 13px; max-width: 320px; margin: 0 auto; }

/* ── LOADING ─────────────────────────────────── */
.loading-overlay {
  position: fixed; inset: 0;
  background: rgba(13,27,42,0.85);
  backdrop-filter: blur(4px);
  z-index: 900;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.loading-overlay.show { display: flex; }

.spinner {
  width: 44px; height: 44px;
  border: 4px solid rgba(255,255,255,0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-text { font-size: 14px; color: var(--text-secondary); }

/* ── HIGHLIGHT ─────────────────────────────────── */
mark {
  background: rgba(212,169,75,0.3);
  color: var(--accent);
  border-radius: 3px;
  padding: 0 2px;
}

/* ── UTIL ─────────────────────────────────── */
.section-header {
  display: flex; align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.section-title {
  font-size: 17px; font-weight: 700; color: var(--text);
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

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

.gap-8 { gap: 8px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }

/* ── RESPONSIVE ─────────────────────────────────── */
@media (max-width: 1024px) {
  .search-panel { grid-template-columns: 1fr; }
  .filters-sidebar { position: static; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .main-content { margin-left: 0; }
  .hamburger { display: block; }
  .page-content { padding: 16px; }
  .form-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}

/* ── OVERLAY ─────────────────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 150;
}

.sidebar-overlay.show { display: block; }

/* ── HOME RECENT ─────────────────────────────────── */
.recent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
}

.recent-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: all var(--transition);
}

.recent-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(74,158,232,0.25);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.recent-card-konu {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.recent-card-meta {
  display: flex; gap: 8px;
  flex-wrap: wrap;
}