/* ============================================================
   Software Testing Mentor & RCV Academy Automation Practice Website – Main Stylesheet
   Selectors used here are intentional practice targets!
   ============================================================ */

/* ── CSS Variables ────────────────────────────────────────── */
:root {
  --sidebar-w:      260px;
  --sidebar-w-col:   64px;
  --topbar-h:        56px;
  --primary:        #4f46e5;
  --primary-dark:   #3730a3;
  --primary-light:  #eef2ff;
  --accent:         #06b6d4;
  --success:        #22c55e;
  --warning:        #f59e0b;
  --danger:         #ef4444;
  --text:           #1e293b;
  --text-muted:     #64748b;
  --border:         #e2e8f0;
  --bg:             #f8fafc;
  --card-bg:        #ffffff;
  --sidebar-bg:     #1e293b;
  --sidebar-text:   #cbd5e1;
  --sidebar-active: #4f46e5;
  --radius:         8px;
  --shadow:         0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md:      0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --transition:     .2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Row containing sidebar + main content */
.app-row {
  display: flex;
  flex: 1;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

ul { list-style: none; }

img { max-width: 100%; display: block; }

/* ── Sidebar ──────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: width var(--transition), min-width var(--transition);
  z-index: 100;
}

.sidebar.collapsed { width: var(--sidebar-w-col); min-width: var(--sidebar-w-col); }

.sidebar-header {
  display: flex;
  align-items: center;
  padding: 0;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.sidebar-logo {
  font-size: 22px;
  color: #a5b4fc;
  min-width: 32px;
  text-align: center;
}

.sidebar-title {
  font-size: 14px;
  font-weight: 700;
  color: #e2e8f0;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
}
.sidebar-title small { font-weight: 400; color: var(--sidebar-text); font-size: 11px; }

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--sidebar-text);
  cursor: pointer;
  padding: 9px 16px;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
  white-space: nowrap;
  width: 100%;
}
.sidebar-toggle-text {
  font-size: 13.5px;
  font-weight: 500;
  flex: 1;
  text-align: left;
}
.sidebar-collapse-arrow {
  margin-left: auto;
  font-size: 12px;
  transition: transform var(--transition);
}
.sidebar.collapsed .sidebar-toggle-text { display: none; }
.sidebar.collapsed .sidebar-collapse-arrow { display: none; }
.sidebar-toggle:hover { background: rgba(255,255,255,.08); color: #fff; }
.sidebar.collapsed .sidebar-toggle i.fa-bars { min-width: 18px; text-align: center; }

/* Nav list */
.nav-list { padding: 4px 0; flex: 1; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 16px;
  color: var(--sidebar-text);
  font-size: 13.5px;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
  overflow: hidden;
}
.nav-link:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
  text-decoration: none;
}
.nav-link.active {
  background: var(--sidebar-active);
  color: #fff;
  font-weight: 600;
}
.nav-icon { min-width: 18px; font-size: 14px; text-align: center; }
.nav-label { transition: opacity var(--transition); }
.sidebar.collapsed .nav-label { opacity: 0; pointer-events: none; }
.sidebar.collapsed .sidebar-title { opacity: 0; }

/* ── Main wrapper ─────────────────────────────────────────── */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0;
}

/* ── Topbar ───────────────────────────────────────────────── */
.topbar {
  width: 100%;
  height: auto;
  min-height: var(--topbar-h);
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  border-bottom: 2px solid #e2b93b;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 24px;
  position: sticky;
  top: 0;
  z-index: 150;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}

.topbar-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

/* Header nav links */
.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.header-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: #cbd5e1;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.header-nav-link:hover {
  background: rgba(255,255,255,.1);
  color: #e2b93b;
  text-decoration: none;
}

/* Header brand (logo + title) */
.header-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.header-brand:hover { text-decoration: none; }
.header-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
  border-radius: 4px;
}
.header-brand-text {
  font-size: 15px;
  font-weight: 700;
  color: #f1f5f9;
  line-height: 1.3;
  white-space: nowrap;
}
.header-brand-text small {
  font-size: 11.5px;
  font-weight: 500;
  color: #94a3b8;
  display: block;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.header-social {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}
.header-social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: #cbd5e1;
  font-size: 14px;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.header-social-icon:hover {
  transform: scale(1.12);
  text-decoration: none;
  background: rgba(255,255,255,.2);
  color: #e2b93b;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: #f1f5f9;
}

/* ── Page content ─────────────────────────────────────────── */
.page-content {
  flex: 1;
  padding: 28px 32px;
  max-width: 1280px;
  width: 100%;
}

/* ── Footer ───────────────────────────────────────────────── */
.app-footer {
  background: linear-gradient(135deg, #e0f0ff 0%, #c7ddf5 50%, #dce8f8 100%);
  color: #1e3a5f;
  border-top: 1px solid #b8d4f0;
  padding: 24px 32px 16px;
  text-align: center;
  width: 100%;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.footer-link {
  color: #1e3a5f;
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}
.footer-link:hover { color: var(--primary); text-decoration: underline; }
.footer-social {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 14px;
}
.footer-social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.5);
  color: #1e3a5f;
  font-size: 15px;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.footer-social-icon:hover { transform: scale(1.12); text-decoration: none; }

/* Brand colors for social icons */
#social-yt-stm, #social-yt-rcv, #header-yt-stm, #header-yt-rcv { color: #FF0000; }
#social-linkedin, #header-linkedin { color: #0A66C2; }
#social-instagram, #header-instagram { color: #E4405F; }
#social-fb-rcv, #social-fb-stm { color: #1877F2; }
#social-x { color: #000000; }

#social-yt-stm:hover, #social-yt-rcv:hover, #header-yt-stm:hover, #header-yt-rcv:hover { background: #FF0000; color: #fff; }
#social-linkedin:hover, #header-linkedin:hover { background: #0A66C2; color: #fff; }
#social-instagram:hover, #header-instagram:hover { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); color: #fff; }
#social-fb-rcv:hover, #social-fb-stm:hover { background: #1877F2; color: #fff; }
#social-x:hover { background: #000; color: #fff; }
.footer-copy {
  font-size: 12px;
  color: #4a6fa5;
  margin: 0;
}

/* ── Sponsor banners ──────────────────────────────────────── */

/* --- Diamond (header – big banner) --- */
.sponsor-banner--diamond {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 8px 24px;
  background: linear-gradient(135deg, #f0f4ff 0%, #e4ecf7 50%, #dce8f8 100%);
  border-bottom: 1px solid #c7d4e4;
  flex-wrap: wrap;
}
.sponsor-banner--diamond .sponsor-banner__label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #6b7280;
  font-weight: 700;
  white-space: nowrap;
}
.sponsor-banner--diamond .sponsor-banner__label i { margin-right: 5px; }
.sponsor-banner__items {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.sponsor-banner__link--diamond {
  display: flex;
  align-items: center;
  text-decoration: none;
  padding: 4px 10px;
  border-radius: 8px;
  transition: background 0.2s, box-shadow 0.2s;
}
.sponsor-banner__link--diamond:hover {
  background: rgba(0,0,0,0.04);
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.sponsor-banner__img--diamond {
  max-height: 90px;
  max-width: 728px;
  width: 728px;
  height: 90px;
  object-fit: contain;
}

/* Sponsorship enquiry CTA */
.sponsor-enquiry {
  width: 100%;
  text-align: center;
  font-size: 13px;
  color: #4a5568;
  margin: 14px 0 18px;
  padding: 10px 16px;
  background: linear-gradient(135deg, #eef2ff 0%, #e8edf8 100%);
  border: 1px solid #cbd5e8;
  border-radius: 6px;
  letter-spacing: 0.2px;
  line-height: 1.6;
}
.sponsor-enquiry i { margin-right: 5px; color: #5a7ec2; }
.sponsor-enquiry a {
  color: #2b6cb0;
  text-decoration: none;
  font-weight: 600;
}
.sponsor-enquiry a:hover { text-decoration: underline; color: #1a4f8b; }

/* --- Footer sponsor tiers container --- */
.sponsor-tiers {
  border-top: 1px solid #d0d8e8;
  margin-top: 10px;
  padding: 0;
  background: linear-gradient(180deg, #f7f9fc 0%, #eef2f7 100%);
}
.sponsor-tier {
  padding: 16px 24px 12px;
  text-align: center;
}
.sponsor-tier + .sponsor-tier {
  border-top: 1px solid #e2e8f0;
}
.sponsor-tier__heading {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-weight: 700;
  margin: 0 0 12px;
}
.sponsor-tier__heading i { margin-right: 5px; }
.sponsor-tier__items {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.sponsor-tier__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--dark);
  border-radius: 6px;
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
}
.sponsor-tier__link:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* Platinum – small banners with name */
.sponsor-tier--platinum .sponsor-tier__heading { color: #6b21a8; }
.sponsor-tier__link--platinum {
  padding: 6px 12px;
  background: rgba(107,33,168,0.04);
  border: 1px solid rgba(107,33,168,0.12);
}
.sponsor-tier__link--platinum:hover { background: rgba(107,33,168,0.08); }
.sponsor-tier__img--platinum {
  max-height: 42px;
  max-width: 200px;
  object-fit: contain;
}
.sponsor-tier__name {
  font-size: 12px;
  font-weight: 500;
  color: var(--dark);
}

/* Gold – medium logo only (no name text) */
.sponsor-tier--gold .sponsor-tier__heading { color: #b45309; }
.sponsor-tier__link--gold {
  padding: 6px;
  background: rgba(180,83,9,0.03);
  border: 1px solid rgba(180,83,9,0.10);
  border-radius: 8px;
}
.sponsor-tier__link--gold:hover { background: rgba(180,83,9,0.07); }
.sponsor-tier__img--gold {
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: 6px;
}



/* ── Section / Page heading ───────────────────────────────── */
.page-header {
  margin-bottom: 24px;
}
.page-header h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.page-header p {
  color: var(--text-muted);
  font-size: 13.5px;
}

/* ── Card ─────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 20px;
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text);
}

/* ── Home grid ────────────────────────────────────────────── */
.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.grid-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 16px;
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.grid-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  text-decoration: none;
  color: var(--primary);
}
.grid-card .grid-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.grid-card .grid-label {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background var(--transition), opacity var(--transition);
}
.btn-primary   { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success   { background: var(--success); color: #fff; }
.btn-danger    { background: var(--danger);  color: #fff; }
.btn-warning   { background: var(--warning); color: #fff; }
.btn-outline   { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-sm        { padding: 5px 12px; font-size: 12.5px; }
.btn-lg        { padding: 12px 28px; font-size: 16px; }

/* ── Forms ────────────────────────────────────────────────── */
.form-group        { margin-bottom: 16px; }
.form-label        { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: var(--text); }
.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.15);
}
.form-control.is-invalid { border-color: var(--danger); }
.form-control.is-valid   { border-color: var(--success); }
.form-text     { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.invalid-feedback { font-size: 12px; color: var(--danger); margin-top: 4px; display: none; }
.is-invalid ~ .invalid-feedback { display: block; }

/* ── Alerts ───────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13.5px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
.alert-error   { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.alert-warning { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }
.alert-info    { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }

/* ── Tables ───────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
table.data-table thead th {
  background: var(--primary);
  color: #fff;
  padding: 11px 14px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
table.data-table thead th .sort-icon { margin-left: 6px; font-size: 11px; }
table.data-table tbody tr { border-bottom: 1px solid var(--border); }
table.data-table tbody tr:hover { background: var(--primary-light); }
table.data-table td { padding: 10px 14px; }
table.data-table tbody tr:nth-child(even) { background: #f8fafc; }
table.data-table tbody tr:nth-child(even):hover { background: var(--primary-light); }

/* ── Data-Table Edit / Delete ─────────────────────────────── */
.dt-actions { white-space: nowrap; }
.dt-edit-btn, .dt-delete-btn, .dt-save-btn, .dt-cancel-btn {
  padding: 4px 10px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  background: #fff;
  transition: background var(--transition);
}
.dt-edit-btn:hover   { background: var(--primary-light); }
.dt-delete-btn:hover { background: #fee2e2; }
.dt-save-btn         { background: var(--success); color: #fff; border-color: var(--success); }
.dt-save-btn:hover   { opacity: .85; }
.dt-cancel-btn:hover { background: #f1f5f9; }
.dt-edit-input {
  width: 100%;
  padding: 4px 6px;
  font-size: 13px;
  border: 1px solid var(--primary);
  border-radius: 4px;
  box-sizing: border-box;
}
tr.dt-editing { background: #fefce8 !important; }

/* ── Pagination ───────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.page-btn {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  transition: all var(--transition);
}
.page-btn:hover { background: var(--primary-light); border-color: var(--primary); }
.page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── Drag and Drop ────────────────────────────────────────── */
.drag-container { display: flex; gap: 24px; flex-wrap: wrap; }
.drag-zone {
  flex: 1;
  min-width: 200px;
  min-height: 180px;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background: #fafafa;
  transition: border-color var(--transition), background var(--transition);
}
.drag-zone.drag-over { border-color: var(--primary); background: var(--primary-light); }
.drag-zone-title { font-size: 13px; font-weight: 600; color: var(--text-muted); margin-bottom: 10px; }
.draggable-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 8px;
  cursor: grab;
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow);
  transition: opacity var(--transition);
}
.draggable-item:active { cursor: grabbing; opacity: .7; }

/* ── Slider ───────────────────────────────────────────────── */
.slider-wrapper { padding: 10px 0; }
input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
  cursor: pointer;
}
.slider-value {
  display: inline-block;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin-top: 8px;
}

/* ── Tooltip ──────────────────────────────────────────────── */
.tooltip-demo { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
[data-tooltip] { position: relative; cursor: pointer; }
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: #fff;
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
[data-tooltip]:hover::after { opacity: 1; }

/* ── Mouse hover effects ──────────────────────────────────── */
.hover-box {
  padding: 20px 30px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card-bg);
  transition: all .25s ease;
  cursor: pointer;
  text-align: center;
  font-weight: 600;
  font-size: 14px;
  min-width: 160px;
}
.hover-box:hover { background: var(--primary); color: #fff; transform: scale(1.05); }

.hover-reveal-text { visibility: hidden; margin-top: 8px; font-size: 13px; color: var(--success); }
.hover-box:hover .hover-reveal-text { visibility: visible; }

/* ── Context menu ─────────────────────────────────────────── */
.context-target {
  border: 2px dashed var(--primary);
  border-radius: var(--radius);
  padding: 60px 20px;
  text-align: center;
  font-size: 15px;
  color: var(--text-muted);
  background: var(--primary-light);
  cursor: context-menu;
}
#custom-context-menu {
  position: fixed;
  display: none;
  z-index: 9999;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  min-width: 180px;
  overflow: hidden;
}
.ctx-menu-item {
  padding: 10px 16px;
  font-size: 13.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
}
.ctx-menu-item:hover { background: var(--primary-light); color: var(--primary); }
.ctx-divider { border-top: 1px solid var(--border); }

/* ── Notification toasts ──────────────────────────────────── */
#toast-container {
  position: fixed;
  top: 70px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 12px 18px;
  border-radius: var(--radius);
  color: #fff;
  font-size: 13.5px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn .3s ease;
  min-width: 260px;
}
.toast-success { background: var(--success); }
.toast-error   { background: var(--danger);  }
.toast-warning { background: var(--warning); }
.toast-info    { background: var(--accent);  }
@keyframes slideIn {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ── Iframe ───────────────────────────────────────────────── */
.iframe-demo iframe {
  width: 100%;
  height: 380px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ── Shadow DOM container ─────────────────────────────────── */
.shadow-host {
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 12px;
}

/* ── Challenging DOM ──────────────────────────────────────── */
.challenging-table td, .challenging-table th {
  padding: 8px 12px;
  border: 1px solid var(--border);
  font-size: 13px;
}

/* ── Calendar ─────────────────────────────────────────────── */
#ui-datepicker-wrapper { max-width: 340px; }
.calendar-section { display: flex; gap: 24px; flex-wrap: wrap; }
.calendar-output {
  flex: 1;
  min-width: 220px;
  background: var(--primary-light);
  padding: 16px;
  border-radius: var(--radius);
  font-size: 14px;
}

/* ── File upload drop zone ────────────────────────────────── */
.file-drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.file-drop-zone.drag-over { border-color: var(--primary); background: var(--primary-light); }
.file-drop-zone input { display: none; }
.file-drop-icon { font-size: 40px; color: var(--primary); margin-bottom: 10px; }

/* ── Scrollbars ───────────────────────────────────────────── */
.scroll-box {
  height: 200px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background: var(--card-bg);
}
.scroll-box p { margin-bottom: 12px; font-size: 13.5px; }

/* ── Exit intent overlay ──────────────────────────────────── */
#exit-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}
#exit-overlay.show { display: flex; }
.exit-modal {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 40px;
  max-width: 440px;
  width: 90%;
  text-align: center;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.exit-modal h2 { font-size: 22px; margin-bottom: 10px; }
.exit-modal p  { color: var(--text-muted); margin-bottom: 20px; font-size: 14px; }
.exit-close {
  position: absolute;
  top: 12px; right: 16px;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--text-muted);
}

/* ── Radio / Checkbox groups ──────────────────────────────── */
.radio-group, .checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.radio-group label, .checkbox-group label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
}
.radio-group input, .checkbox-group input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* ── Autocomplete ─────────────────────────────────────────── */
.autocomplete-wrapper { position: relative; }
.autocomplete-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  z-index: 100;
  max-height: 220px;
  overflow-y: auto;
  display: none;
}
.autocomplete-list.open { display: block; }
.autocomplete-item {
  padding: 9px 14px;
  cursor: pointer;
  font-size: 13.5px;
}
.autocomplete-item:hover, .autocomplete-item.highlighted { background: var(--primary-light); color: var(--primary); }

/* ── jQuery UI Menu (horizontal menubar) ──────────────────── */
#jquery-menu.ui-menu {
  display: flex;
  flex-wrap: wrap;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  padding: 0;
  list-style: none;
}
#jquery-menu.ui-menu > .ui-menu-item {
  position: relative;
  border-right: 1px solid var(--border);
}
#jquery-menu.ui-menu > .ui-menu-item:last-child { border-right: none; }
#jquery-menu.ui-menu .ui-menu-item-wrapper {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  display: block;
  border: none;
}
#jquery-menu.ui-menu .ui-menu-item-wrapper.ui-state-active,
#jquery-menu.ui-menu .ui-menu-item-wrapper:hover {
  background: var(--primary) !important;
  color: #fff !important;
  border: none;
  border-radius: 0;
  margin: 0;
}
/* Sub-menus (dropdowns) */
#jquery-menu.ui-menu .ui-menu {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-md);
  z-index: 200;
  padding: 4px 0;
}
/* Nested sub-menus open to the right */
#jquery-menu.ui-menu .ui-menu .ui-menu {
  top: 0;
  left: 100%;
  border-radius: var(--radius);
}
#jquery-menu.ui-menu .ui-menu .ui-menu-item-wrapper {
  padding: 8px 16px;
  font-weight: 400;
  font-size: 13.5px;
}
#jquery-menu .ui-menu-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 4px 0;
  height: 0;
  padding: 0;
}
/* Sub-menu arrow indicator */
#jquery-menu .ui-menu-item .ui-menu-icon {
  right: 6px;
  position: absolute;
}

/* ── Responsive ───────────────────────────────────────────── */

/* Sidebar overlay for mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 120;
  opacity: 0;
  transition: opacity .3s ease;
}
.sidebar-overlay.show {
  display: block;
  opacity: 1;
}

/* ── Tablet (≤ 1024px) ── */
@media (max-width: 1024px) {
  .topbar { padding: 8px 16px; gap: 8px; }
  .header-brand-text { font-size: 13px; }
  .header-brand-text small { font-size: 10.5px; }
  .header-logo-img { height: 36px; }
  .header-nav-link { padding: 4px 8px; font-size: 12px; }
  .header-social-icon { width: 26px; height: 26px; font-size: 12px; }
  .header-social { gap: 4px; }
  .page-content { padding: 20px 20px; }
  .app-footer { padding: 20px 16px 12px; }
  .footer-links { gap: 16px; }
}

/* ── Mobile (≤ 768px) ── */
@media (max-width: 768px) {
  /* Sidebar: off-canvas drawer */
  .sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: var(--sidebar-w) !important;
    min-width: var(--sidebar-w) !important;
    height: 100vh;
    overflow-y: auto;
    transition: left .3s ease;
    z-index: 130;
  }
  .sidebar.mobile-open { left: 0; }

  /* Show hamburger */
  .mobile-menu-btn { display: block; }

  /* Header wraps */
  .topbar {
    flex-wrap: wrap;
    padding: 8px 12px;
    gap: 6px;
  }
  .header-brand { order: 1; }
  .mobile-menu-btn { order: 0; }
  .header-nav {
    order: 3;
    margin-left: 0;
    width: 100%;
    justify-content: center;
    border-top: 1px solid #b8d4f0;
    padding-top: 6px;
    margin-top: 2px;
  }
  .header-social {
    order: 2;
    margin-left: auto;
  }

  /* Main area takes full width */
  .app-row { flex-direction: column; }
  .main-wrapper { margin-left: 0 !important; min-height: auto; }

  /* Content */
  .page-content { padding: 16px 12px; }
  .page-header h2 { font-size: 18px; }
  .page-header p { font-size: 12.5px; }

  /* Cards */
  .card { padding: 16px; }

  /* Home grid */
  .home-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .grid-card { padding: 16px 12px; }
  .grid-card .grid-icon { width: 40px; height: 40px; font-size: 18px; }
  .grid-card .grid-label { font-size: 12px; }

  /* Tables scroll horizontally */
  .table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table.data-table { min-width: 500px; }

  /* Flex layouts stack */
  .d-flex.gap-3 { flex-direction: column; }
  .drag-container { flex-direction: column; }
  .calendar-section { flex-direction: column; }
  .tooltip-demo { flex-direction: column; align-items: flex-start; }

  /* Buttons: full width on small */
  .d-flex.gap-2 > .btn { flex: 1; justify-content: center; }

  /* Footer */
  .app-footer { padding: 16px 12px 12px; }
  .footer-links { gap: 12px; flex-direction: column; align-items: center; }
  .footer-social { gap: 10px; flex-wrap: wrap; }
  .footer-social-icon { width: 32px; height: 32px; font-size: 13px; }
  .footer-copy { font-size: 11px; }

  /* Sponsor banners */
  .sponsor-banner--diamond { padding: 10px 12px; gap: 10px; }
  .sponsor-banner__img--diamond { max-height: 60px; max-width: 100%; width: auto; height: auto; }
  .sponsor-enquiry { font-size: 11.5px; margin: 10px 8px 14px; padding: 8px 10px; }
  .sponsor-tier { padding: 12px 12px 8px; }
  .sponsor-tier__items { gap: 12px; }
  .sponsor-tier__img--platinum { max-height: 34px; max-width: 160px; }
  .sponsor-tier__img--gold { width: 48px; height: 48px; }
  .sponsor-tier__name { font-size: 11px; }

  /* Iframe */
  .iframe-demo iframe { height: 260px; }

  /* Toasts */
  #toast-container { right: 10px; left: 10px; }
  .toast { min-width: auto; width: 100%; }

  /* jQuery menu vertical on mobile */
  #jquery-menu.ui-menu { flex-direction: column; }
  #jquery-menu.ui-menu > .ui-menu-item { border-right: none; border-bottom: 1px solid var(--border); }
}

/* ── Small mobile (≤ 480px) ── */
@media (max-width: 480px) {
  .topbar { padding: 6px 8px; }
  .header-brand-text { font-size: 12px; }
  .header-brand-text small { font-size: 9.5px; }
  .header-logo-img { height: 30px; }
  .header-brand { gap: 6px; }
  .header-nav-link { padding: 3px 6px; font-size: 11px; }
  .header-social-icon { width: 24px; height: 24px; font-size: 11px; }

  .page-content { padding: 12px 8px; }
  .page-header h2 { font-size: 16px; }
  .card { padding: 12px; }

  .home-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 8px; }
  .grid-card { padding: 12px 8px; }
  .grid-card .grid-icon { width: 36px; height: 36px; font-size: 16px; border-radius: 8px; }
  .grid-card .grid-label { font-size: 11px; }

  .btn { padding: 8px 14px; font-size: 13px; }
  .form-control { font-size: 13px; padding: 8px 10px; }

  .exit-modal { padding: 24px 16px; }
  .exit-modal h2 { font-size: 18px; }

  /* Scroll box */
  .scroll-box { height: 160px; padding: 10px; }

  /* Hover boxes stack */
  .hover-box { min-width: auto; width: 100%; }
}

/* ── Utility ──────────────────────────────────────────────── */
.mt-1 { margin-top: 4px;  }
.mt-2 { margin-top: 8px;  }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.d-flex { display: flex; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 16px; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.text-muted { color: var(--text-muted); font-size: 13px; }
.text-center { text-align: center; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 600;
}
.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: #f0fdf4; color: #166534; }
.badge-danger  { background: #fef2f2; color: #991b1b; }