/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0f1117;
  --bg2: #161b25;
  --bg3: #1c2333;
  --surface: rgba(255,255,255,0.04);
  --surface-hover: rgba(255,255,255,0.07);
  --blue: #3b82f6;
  --blue-dark: #1d4ed8;
  --blue-light: #60a5fa;
  --gold: #c8a96e;
  --text: #e2e8f0;
  --text-muted: #64748b;
  --text-faint: #2d3748;
  --border: rgba(255,255,255,0.07);
  --border-hover: rgba(255,255,255,0.14);
  --danger: #ef4444;
  --success: #10b981;
  --radius: 10px;
  --radius-lg: 16px;
  --sidebar-w: 260px;
  --topbar-h: 64px;
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
}

html, body { height: 100%; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; }
input, textarea, select { font-family: inherit; }
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 3px; }

/* ===== LOGIN ===== */
.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 30% 40%, rgba(59,130,246,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 70%, rgba(200,169,110,0.06) 0%, transparent 60%),
              var(--bg);
  padding: 24px;
}
.login-card {
  width: 100%; max-width: 400px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 48px 40px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}
.login-logo { text-align: center; margin-bottom: 40px; }
.login-logo-img {
  height: 80px; width: auto; margin-bottom: 14px;
  filter: brightness(0) invert(1); opacity: .9;
}
.login-logo p { font-size: 13px; color: var(--text-muted); }
.login-field {
  position: relative; margin-bottom: 14px;
}
.login-field i {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: 14px; pointer-events: none;
}
.login-field input {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px 12px 40px;
  font-size: 14px; color: var(--text); outline: none;
  transition: border-color var(--transition);
}
.login-field input:focus { border-color: var(--blue); }
.login-field input::placeholder { color: var(--text-muted); }
.login-error {
  font-size: 13px; color: #f87171; background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.2); border-radius: var(--radius);
  padding: 10px 14px; margin-bottom: 14px;
  display: none;
}
.login-error.show { display: block; }
.btn-login {
  width: 100%; display: flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--blue); color: #fff; padding: 13px;
  border-radius: var(--radius); font-size: 15px; font-weight: 600;
  transition: background var(--transition);
}
.btn-login:hover { background: var(--blue-dark); }
.btn-login:disabled { opacity: .6; cursor: not-allowed; }

/* ===== DASHBOARD LAYOUT ===== */
.dashboard { display: flex; height: 100vh; overflow: hidden; }

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-w); background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  flex-shrink: 0; transition: transform var(--transition);
}
.sidebar-header { padding: 20px 20px 16px; border-bottom: 1px solid var(--border); }
.sidebar-logo { display: flex; align-items: center; justify-content: center; }
.sidebar-logo-img {
  height: 44px; width: auto;
  filter: brightness(0) invert(1); opacity: .85;
}
.sidebar-nav { flex: 1; padding: 16px 12px; display: flex; flex-direction: column; gap: 4px; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px; border-radius: var(--radius);
  font-size: 14px; font-weight: 500; color: var(--text-muted);
  background: transparent; transition: all var(--transition); width: 100%; text-align: left;
}
.nav-item i { width: 18px; text-align: center; font-size: 15px; }
.nav-item:hover { background: var(--surface); color: var(--text); }
.nav-item.active { background: rgba(59,130,246,0.12); color: var(--blue-light); }
.nav-item.active i { color: var(--blue-light); }
.sidebar-footer {
  padding: 16px 20px; border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px;
}
.user-info { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; flex-shrink: 0;
}
.user-name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--text-muted); }
.btn-logout {
  width: 34px; height: 34px; border-radius: var(--radius); background: var(--surface);
  border: 1px solid var(--border); color: var(--text-muted); font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition); flex-shrink: 0;
}
.btn-logout:hover { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); color: #f87171; }

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

/* ===== TOPBAR ===== */
.topbar {
  height: var(--topbar-h); display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px; border-bottom: 1px solid var(--border);
  background: var(--bg2); flex-shrink: 0;
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.sidebar-toggle {
  display: none; width: 36px; height: 36px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); color: var(--text-muted);
  font-size: 15px; align-items: center; justify-content: center;
}
.page-title { font-size: 17px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.btn-preview {
  display: flex; align-items: center; gap: 8px; padding: 8px 16px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 13px; font-weight: 500; color: var(--text-muted);
  transition: all var(--transition);
}
.btn-preview:hover { border-color: var(--blue); color: var(--blue-light); }
.upload-quota {
  display: flex; align-items: center; gap: 8px; padding: 8px 14px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 12px; color: var(--text-muted);
}
.upload-quota i { color: var(--blue-light); }

/* ===== TABS ===== */
.tab-content { display: none; flex: 1; overflow-y: auto; padding: 28px; }
.tab-content.active { display: block; }

/* ===== PANELS ===== */
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.panel {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.panel-header {
  padding: 18px 24px; border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.panel-header h3 { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 10px; }
.panel-header i { color: var(--blue-light); }
.panel-body { padding: 24px; }
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--text-muted); margin-bottom: 8px; letter-spacing: .3px;
  text-transform: uppercase;
}
.form-row label small { text-transform: none; font-weight: 400; letter-spacing: 0; color: var(--text-muted); }
.form-row input, .form-row textarea, .form-row select {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 14px; font-size: 13px;
  color: var(--text); outline: none; transition: border-color var(--transition);
  appearance: none;
}
.form-row input::placeholder, .form-row textarea::placeholder { color: var(--text-faint); }
.form-row input:focus, .form-row textarea:focus, .form-row select:focus { border-color: var(--blue); }
.form-row textarea { resize: vertical; }
.form-row select option { background: var(--bg2); color: var(--text); }

.image-input-wrap { display: flex; gap: 8px; }
.image-input-wrap input { flex: 1; }
.btn-upload {
  padding: 10px 14px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text-muted); font-size: 13px;
  transition: all var(--transition); flex-shrink: 0;
}
.btn-upload:hover { border-color: var(--blue); color: var(--blue-light); }
.img-preview {
  margin-top: 10px; width: 100%; max-height: 180px; object-fit: cover;
  border-radius: var(--radius); border: 1px solid var(--border);
}
.map-input-help {
  display: flex; align-items: flex-start; gap: 9px; padding: 10px 13px;
  background: rgba(59,130,246,.07); border: 1px solid rgba(59,130,246,.2);
  border-radius: var(--radius); margin-bottom: 10px; font-size: 13px; color: var(--text-muted); line-height: 1.5;
}
.map-input-help i { color: var(--blue-light); margin-top: 2px; flex-shrink: 0; }
.map-input-help strong { color: var(--text); }
.btn-map-preview {
  margin-top: 10px; padding: 9px 18px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text-muted); font-size: 13px;
  display: flex; align-items: center; gap: 7px; transition: all var(--transition);
}
.btn-map-preview:hover { border-color: var(--blue); color: var(--blue-light); }
.stats-input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ===== BUTTONS ===== */
.btn-save {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue); color: #fff; padding: 10px 20px;
  border-radius: var(--radius); font-size: 13px; font-weight: 600;
  transition: background var(--transition);
}
.btn-save:hover { background: var(--blue-dark); }
.btn-save:disabled { opacity: .6; cursor: not-allowed; }
.btn-add {
  display: flex; align-items: center; gap: 8px;
  background: var(--blue); color: #fff; padding: 9px 18px;
  border-radius: var(--radius); font-size: 13px; font-weight: 600;
  transition: background var(--transition);
}
.btn-add:hover { background: var(--blue-dark); }
.btn-cancel {
  padding: 10px 20px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 13px; font-weight: 500;
  color: var(--text-muted); transition: all var(--transition);
}
.btn-cancel:hover { border-color: var(--border-hover); color: var(--text); }
.btn-danger {
  display: flex; align-items: center; gap: 8px;
  background: var(--danger); color: #fff; padding: 10px 20px;
  border-radius: var(--radius); font-size: 13px; font-weight: 600;
  transition: background var(--transition);
}
.btn-danger:hover { background: #dc2626; }
.btn-icon {
  width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center;
  justify-content: center; font-size: 13px; transition: all var(--transition);
}
.btn-icon-edit { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2); color: var(--blue-light); }
.btn-icon-edit:hover { background: rgba(59,130,246,0.2); }
.btn-icon-del { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2); color: #f87171; }
.btn-icon-del:hover { background: rgba(239,68,68,0.2); }

/* ===== ITEMS GRID (Projects & Refs) ===== */
.list-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px;
}
.items-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px;
}
.item-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: border-color var(--transition);
}
.item-card:hover { border-color: var(--border-hover); }
.item-card-img { aspect-ratio: 16/9; overflow: hidden; background: var(--bg3); }
.item-card-img img { width: 100%; height: 100%; object-fit: cover; }
.item-card-body { padding: 16px 18px; }
.item-card-category {
  display: inline-block; font-size: 10px; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase; color: var(--blue-light);
  background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2);
  padding: 3px 8px; border-radius: 100px; margin-bottom: 8px;
}
.item-card-body h4 { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.item-card-body p { font-size: 12px; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.item-card-actions { display: flex; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--border); }

/* Ref card in admin */
.ref-admin-card .item-card-body { display: flex; align-items: center; gap: 14px; }
.ref-admin-logo {
  width: 48px; height: 48px; border-radius: 10px; overflow: hidden;
  background: var(--bg3); flex-shrink: 0; display: flex; align-items: center; justify-content: center;
}
.ref-admin-logo img { width: 100%; height: 100%; object-fit: contain; padding: 4px; }
.ref-admin-logo-placeholder {
  width: 100%; height: 100%; background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 20px; color: #fff;
}

/* ===== FAQ ADMIN ===== */
.faq-admin-list { display: flex; flex-direction: column; gap: 12px; }
.faq-admin-item {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 18px 20px; display: flex; align-items: flex-start;
  justify-content: space-between; gap: 20px;
  transition: border-color var(--transition);
}
.faq-admin-item:hover { border-color: var(--border-hover); }
.faq-admin-text { flex: 1; min-width: 0; }
.faq-admin-text strong { display: block; font-size: 14px; margin-bottom: 6px; }
.faq-admin-text p { font-size: 13px; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.faq-admin-actions { display: flex; gap: 8px; flex-shrink: 0; }

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center; padding: 80px 20px; color: var(--text-muted);
  grid-column: 1 / -1;
}
.empty-state i { font-size: 40px; color: var(--text-faint); display: block; margin-bottom: 16px; }
.empty-state p { font-size: 14px; }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px); z-index: 1000;
  display: flex; align-items: center; justify-content: center; padding: 24px;
  opacity: 0; visibility: hidden; transition: all var(--transition);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); width: 100%; max-width: 520px;
  max-height: 90vh; display: flex; flex-direction: column;
  transform: translateY(16px) scale(.97);
  transition: transform var(--transition);
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }
.modal-sm { max-width: 380px; }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 15px; font-weight: 600; }
.modal-close {
  width: 32px; height: 32px; border-radius: 8px; background: var(--surface);
  border: 1px solid var(--border); color: var(--text-muted); font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--surface-hover); color: var(--text); }
.modal-body { padding: 24px; overflow-y: auto; flex: 1; }
.modal-footer {
  display: flex; align-items: center; justify-content: flex-end; gap: 10px;
  padding: 16px 24px; border-top: 1px solid var(--border);
}

/* ===== PASSWORD FORM ===== */
.form-msg {
  font-size: 13px; padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px;
  display: none;
}
.form-msg.error { display: block; color: #f87171; background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2); }
.form-msg.success { display: block; color: #34d399; background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.2); }

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(80px);
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 20px; font-size: 13px; font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  z-index: 9999; white-space: nowrap; pointer-events: none;
  transition: transform .3s ease, opacity .3s ease; opacity: 0;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.success { border-color: rgba(16,185,129,0.3); color: #34d399; }
.toast.error { border-color: rgba(239,68,68,0.3); color: #f87171; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .content-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; z-index: 200;
    transform: translateX(-100%);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-toggle { display: flex; }
  .main-content { width: 100%; }
  .tab-content { padding: 20px; }
  .topbar { padding: 0 16px; }
  .items-grid { grid-template-columns: 1fr; }
  .stats-input-grid { grid-template-columns: 1fr; }
}