/* =========================================
   Training System — Main Stylesheet v3
   Responsive: Mobile / Tablet / Desktop
   ========================================= */

/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;600;700&family=Kanit:wght@400;600;700&display=swap');

/* ── CSS Variables ── */
:root {
  --primary:       #1a5276;
  --primary-light: #2471a3;
  --primary-dark:  #0e2f44;
  --accent:        #e67e22;
  --accent-light:  #f39c12;
  --success:       #1e8449;
  --danger:        #c0392b;
  --warning:       #d4ac0d;
  --info:          #1a7fba;
  --bg:            #f0f3f7;
  --white:         #ffffff;
  --text:          #1c2833;
  --text-muted:    #717d7e;
  --border:        #d5d8dc;
  --card-shadow:   0 2px 12px rgba(0,0,0,0.08);
  --radius:        12px;
  --radius-sm:     8px;
  --font-main:     'Sarabun', sans-serif;
  --font-head:     'Kanit', sans-serif;
  --nav-h:         58px;   /* top navbar height */
  --sub-nav-h:     44px;   /* desktop sub-nav height */
  --mob-nav-h:     62px;   /* mobile bottom nav height */
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; }
body, .ui-page { font-family: var(--font-main) !important; background: var(--bg) !important; color: var(--text) !important; font-size: 15px; line-height: 1.6; margin: 0; }
.ui-content { padding: 0 !important; }
.ui-body-inherit { background: transparent !important; }

/* ===========================================
   LOGIN PAGE
   =========================================== */
.ts-login-page { min-height: 100vh; overflow-x: hidden; }

.ts-bg-decoration {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
}
.ts-circle { position: absolute; border-radius: 50%; opacity: .12; background: var(--white); }
.ts-circle-1 { width: 350px; height: 350px; top: -120px; right: -80px; }
.ts-circle-2 { width: 200px; height: 200px; bottom: 100px; left: -60px; }
.ts-circle-3 { width: 120px; height: 120px; top: 55%; right: 15%; }

.ts-login-content { position: relative; z-index: 1; padding: 30px 20px 40px; max-width: 460px; margin: 0 auto; }
.ts-login-header { text-align: center; margin-bottom: 24px; }
.ts-logo-wrap { width: 80px; height: 80px; background: rgba(255,255,255,.18); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; font-size: 38px; border: 2px solid rgba(255,255,255,.3); }
.ts-site-title { font-family: var(--font-head); font-size: 22px; font-weight: 700; color: #fff !important; margin: 0 0 6px; line-height: 1.3; }
.ts-site-sub { color: rgba(255,255,255,.75); font-size: 13px; margin: 0; }

/* ===========================================
   CARDS
   =========================================== */
.ts-card { background: var(--white); border-radius: var(--radius); padding: 20px 18px; box-shadow: var(--card-shadow); margin-bottom: 14px; }
.ts-card-title { font-family: var(--font-head); font-size: 17px; font-weight: 600; color: var(--primary); margin: 0 0 16px; padding-bottom: 10px; border-bottom: 2px solid var(--bg); }
.ts-login-card .ts-card-title { text-align: center; border-bottom: none; padding-bottom: 0; margin-bottom: 14px; }

/* ===========================================
   FORMS
   =========================================== */
.ts-form-group { margin-bottom: 14px; }
.ts-label { display: block; font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 5px; text-transform: uppercase; letter-spacing: .4px; }
.ts-input-wrap { position: relative; display: flex; align-items: center; }
.ts-input-icon { position: absolute; left: 12px; font-size: 15px; z-index: 1; }
.ts-input {
  width: 100%; padding: 10px 12px 10px 36px !important; border: 2px solid var(--border) !important;
  border-radius: var(--radius-sm) !important; font-family: var(--font-main) !important; font-size: 14px !important;
  background: #fafbfc !important; color: var(--text) !important; transition: border-color .2s, box-shadow .2s;
  outline: none !important; -webkit-appearance: none; box-shadow: none !important;
}
.ts-input:focus { border-color: var(--primary-light) !important; box-shadow: 0 0 0 3px rgba(36,113,163,.12) !important; background: var(--white) !important; }
.ts-input-no-icon { padding-left: 12px !important; }
.ts-pwd-toggle { position: absolute; right: 12px; cursor: pointer; font-size: 15px; }
select.ts-input { padding-left: 12px !important; cursor: pointer; }
textarea.ts-input { resize: vertical; min-height: 80px; padding-top: 10px !important; }

/* ===========================================
   BUTTONS
   =========================================== */
.ts-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 5px;
  padding: 10px 18px; border: none; border-radius: var(--radius-sm);
  font-family: var(--font-main) !important; font-size: 14px; font-weight: 600;
  cursor: pointer; text-decoration: none; transition: all .2s; white-space: nowrap; -webkit-appearance: none;
}
.ts-btn-primary { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); color: #fff !important; box-shadow: 0 3px 10px rgba(26,82,118,.25); }
.ts-btn-primary:hover { opacity: .92; transform: translateY(-1px); }
.ts-btn-accent   { background: var(--accent);   color: #fff !important; }
.ts-btn-success  { background: var(--success);  color: #fff !important; }
.ts-btn-danger   { background: var(--danger);   color: #fff !important; }
.ts-btn-warning  { background: var(--warning);  color: #fff !important; }
.ts-btn-outline  { background: transparent; color: var(--primary) !important; border: 2px solid var(--primary); }
.ts-btn-sm  { padding: 7px 13px; font-size: 13px; }
.ts-btn-xs  { padding: 4px 9px;  font-size: 12px; border-radius: 5px; }
.ts-btn-block { width: 100%; margin-top: 6px; }

/* ===========================================
   ALERTS
   =========================================== */
.ts-alert { padding: 11px 13px; border-radius: var(--radius-sm); margin-bottom: 12px; font-size: 14px; display: flex; align-items: flex-start; gap: 8px; }
.ts-alert-danger  { background: #fdecea; color: #922b21; border-left: 4px solid var(--danger); }
.ts-alert-success { background: #e9f7ef; color: #1d6a39; border-left: 4px solid var(--success); }
.ts-alert-warning { background: #fef9e7; color: #7d6608; border-left: 4px solid var(--warning); }
.ts-alert-info    { background: #ebf5fb; color: #1a5276; border-left: 4px solid var(--info); }
.ts-alert-icon { font-size: 15px; flex-shrink: 0; margin-top: 1px; }

/* ===========================================
   LOGIN EXTRAS
   =========================================== */
.ts-login-footer { text-align: center; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border); }
.ts-link { color: var(--primary-light) !important; text-decoration: none; font-weight: 600; font-size: 14px; }
.ts-demo-hint { text-align: center; margin-top: 10px; padding: 7px; background: #f8f9fa; border-radius: 6px; font-size: 12px; color: var(--text-muted); }

/* ===========================================
   TOP NAVBAR
   =========================================== */
.ts-navbar {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 0 16px;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 200;
  box-shadow: 0 2px 12px rgba(0,0,0,.20);
}
.ts-navbar-brand { font-family: var(--font-head); font-size: 15px; font-weight: 700; color: #fff !important; text-decoration: none; display: flex; align-items: center; gap: 7px; }
.ts-navbar-brand .brand-text { display: none; } /* Hidden on mobile */
.ts-navbar-actions { display: flex; gap: 8px; align-items: center; }
.ts-navbar-user { color: rgba(255,255,255,.85); font-size: 12px; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ts-logout-btn { background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.25); color: #fff !important; padding: 5px 11px; border-radius: 6px; font-size: 12px; text-decoration: none; font-family: var(--font-main); }

/* ===========================================
   SUB-NAV (Desktop horizontal menu)
   =========================================== */
.ts-sub-nav {
  background: var(--white);
  border-bottom: 2px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  position: sticky;
  top: var(--nav-h);
  z-index: 190;
}
.ts-sub-nav::-webkit-scrollbar { display: none; }
.ts-sub-nav a {
  display: flex; align-items: center; gap: 6px;
  padding: 0 16px;
  height: var(--sub-nav-h);
  text-decoration: none;
  color: var(--text-muted);
  font-size: 13px; font-weight: 600;
  border-bottom: 3px solid transparent;
  transition: all .2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.ts-sub-nav a:hover  { color: var(--primary); border-bottom-color: var(--border); }
.ts-sub-nav a.active { color: var(--primary); border-bottom-color: var(--primary); }
.ts-sub-nav .nav-icon { font-size: 16px; }

/* Mobile bottom nav (hidden on desktop) */
.ts-bottom-nav {
  display: none; /* Hidden by default — shown on mobile only */
}

/* ===========================================
   PAGE LAYOUT
   =========================================== */
.ts-wrapper {
  min-height: calc(100vh - var(--nav-h) - var(--sub-nav-h));
}
.ts-page-body {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 12px 24px;
}

/* ===========================================
   PAGE HEADER
   =========================================== */
.ts-page-header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px; margin-bottom: 16px;
}
.ts-page-header .ts-page-title { margin-bottom: 0; }
.ts-page-title { font-family: var(--font-head); font-size: 19px; font-weight: 700; color: var(--primary); margin: 0 0 14px; display: flex; align-items: center; gap: 7px; }

.ts-header-stats { display: flex; gap: 8px; flex-wrap: wrap; }
.ts-stat-pill { padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 700; }
.ts-stat-pill.ts-stat-warning { background: #fef9e7; color: #7d6608; border: 1px solid #f9e79f; }
.ts-stat-pill.ts-stat-success { background: #e9f7ef; color: #1d6a39; border: 1px solid #a9dfbf; }

/* ===========================================
   STATS GRID
   =========================================== */
.ts-stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 16px; }
.ts-stat-card { background: var(--white); border-radius: var(--radius); padding: 14px 10px; text-align: center; box-shadow: var(--card-shadow); border-top: 4px solid var(--primary); }
.ts-stat-card.accent  { border-top-color: var(--accent); }
.ts-stat-card.success { border-top-color: var(--success); }
.ts-stat-card.warning { border-top-color: var(--warning); }
.ts-stat-card.danger  { border-top-color: var(--danger); }
.ts-stat-num { font-family: var(--font-head); font-size: 28px; font-weight: 700; color: var(--primary); line-height: 1; margin-bottom: 4px; }
.ts-stat-card.accent  .ts-stat-num { color: var(--accent); }
.ts-stat-card.success .ts-stat-num { color: var(--success); }
.ts-stat-card.warning .ts-stat-num { color: var(--warning); }
.ts-stat-card.danger  .ts-stat-num { color: var(--danger); }
.ts-stat-label { font-size: 12px; color: var(--text-muted); font-weight: 600; line-height: 1.3; }

/* ===========================================
   MENU GRID
   =========================================== */
.ts-menu-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 16px; }
.ts-menu-item { background: var(--white); border-radius: var(--radius); padding: 18px 10px; text-align: center; text-decoration: none; display: block; box-shadow: var(--card-shadow); transition: all .2s; border: 2px solid transparent; }
.ts-menu-item:hover { border-color: var(--primary-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.12); }
.ts-menu-icon { font-size: 32px; margin-bottom: 7px; }
.ts-menu-label { font-family: var(--font-head); font-size: 13px; font-weight: 600; color: var(--text); line-height: 1.3; }

/* ===========================================
   TABLES
   =========================================== */
.ts-table-wrap { overflow-x: auto; border-radius: var(--radius); background: var(--white); box-shadow: var(--card-shadow); -webkit-overflow-scrolling: touch; }
.ts-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.ts-table thead th { background: var(--primary); color: #fff; padding: 11px 10px; text-align: left; font-weight: 600; white-space: nowrap; }
.ts-table tbody tr { border-bottom: 1px solid var(--border); }
.ts-table tbody tr:hover { background: #f4f7fb; }
.ts-table tbody td { padding: 9px 10px; vertical-align: middle; }

/* ===========================================
   BADGES
   =========================================== */
.ts-badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; white-space: nowrap; }
.ts-badge-pending  { background: #fef9e7; color: #7d6608;  border: 1px solid #f9e79f; }
.ts-badge-approved { background: #e9f7ef; color: #1d6a39;  border: 1px solid #a9dfbf; }
.ts-badge-rejected { background: #fdecea; color: #922b21;  border: 1px solid #f5b7b1; }
.ts-badge-open     { background: #ebf5fb; color: #1a5276;  border: 1px solid #aed6f1; }
.ts-badge-closed   { background: #f2f3f4; color: #626567;  border: 1px solid #d5d8dc; }
.ts-badge-pass     { background: #e9f7ef; color: #1d6a39;  border: 1px solid #a9dfbf; }
.ts-badge-fail     { background: #fdecea; color: #922b21;  border: 1px solid #f5b7b1; }
.ts-tab-badge { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; border-radius: 50%; background: var(--danger); color: #fff; font-size: 10px; font-weight: 700; margin-left: 4px; }

/* ===========================================
   TABS
   =========================================== */
.ts-tabs { display: flex; gap: 3px; margin-bottom: 14px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.ts-tab { padding: 8px 14px; border-radius: 6px 6px 0 0; border: none; background: var(--white); color: var(--text-muted); font-family: var(--font-main); font-size: 13px; font-weight: 600; cursor: pointer; white-space: nowrap; border-bottom: 3px solid transparent; transition: all .2s; }
.ts-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.ts-tab-content { display: none; }
.ts-tab-content.active { display: block; }

/* ===========================================
   PROGRESS
   =========================================== */
.ts-progress-wrap { background: var(--border); border-radius: 20px; height: 10px; overflow: hidden; margin: 4px 0; }
.ts-progress-bar { height: 100%; border-radius: 20px; background: linear-gradient(90deg, var(--primary), var(--primary-light)); transition: width .5s ease; }
.ts-progress-bar.pass { background: linear-gradient(90deg, var(--success), #27ae60); }

/* ===========================================
   CERTIFICATE CARD
   =========================================== */
.ts-cert-card { background: linear-gradient(135deg, #fef9e7 0%, #fdfefe 100%); border: 3px solid var(--accent-light); border-radius: var(--radius); padding: 28px 22px; text-align: center; position: relative; overflow: hidden; margin-bottom: 14px; }
.ts-cert-card::before { content: '🎓'; position: absolute; font-size: 110px; opacity: .06; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.ts-cert-title  { font-family: var(--font-head); font-size: 20px; font-weight: 700; color: var(--primary-dark); margin-bottom: 3px; }
.ts-cert-sub    { color: var(--text-muted); font-size: 12px; }
.ts-cert-name   { font-size: 24px; font-weight: 700; color: var(--accent); margin: 12px 0 5px; }
.ts-cert-course { font-size: 15px; color: var(--primary); font-weight: 600; }
.ts-cert-num    { font-size: 11px; color: var(--text-muted); margin-top: 10px; }

/* ===========================================
   MODAL
   =========================================== */
.ts-modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 1000; align-items: center; justify-content: center; padding: 14px; }
.ts-modal-overlay.show { display: flex; }
.ts-modal { background: var(--white); border-radius: var(--radius); padding: 22px 18px; width: 100%; max-width: 500px; box-shadow: 0 20px 60px rgba(0,0,0,.25); max-height: 92vh; overflow-y: auto; }
.ts-modal-title { font-family: var(--font-head); font-size: 17px; font-weight: 700; color: var(--primary); margin: 0 0 16px; }
.ts-modal-actions { display: flex; gap: 8px; margin-top: 18px; justify-content: flex-end; }

/* ===========================================
   MISC UTILITIES
   =========================================== */
.ts-divider     { border: none; border-top: 1px solid var(--border); margin: 14px 0; }
.ts-text-center { text-align: center; }
.ts-text-muted  { color: var(--text-muted); }
.ts-mt-8  { margin-top: 8px; }
.ts-mt-16 { margin-top: 16px; }
.ts-mb-0  { margin-bottom: 0 !important; }
.ts-bold  { font-weight: 700; }
.ts-small { font-size: 12px; }
.ts-flex  { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.ts-flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.ts-empty { text-align: center; padding: 36px 16px; color: var(--text-muted); }
.ts-empty-icon { font-size: 44px; margin-bottom: 8px; }

/* ===========================================
   DROPZONE / FILE UPLOAD
   =========================================== */
.ts-dropzone { border: 2px dashed var(--primary-light); border-radius: var(--radius-sm); padding: 20px; text-align: center; cursor: pointer; background: #f0f7ff; transition: all .2s; }
.ts-dropzone:hover, .ts-dropzone.drag-over { background: #e1eef9; border-color: var(--primary); }
.ts-dropzone input { display: none; }
.ts-dropzone-icon { font-size: 32px; margin-bottom: 7px; }
.ts-dropzone p { margin: 3px 0; font-size: 13px; color: var(--text-muted); }

/* ===========================================
   FILTER BAR
   =========================================== */
.ts-filter-bar { padding: 12px 14px; margin-bottom: 12px; }
.ts-filter-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; }

/* ===========================================
   BULK BAR
   =========================================== */
.ts-bulk-bar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 10px 12px; background: #f0f7ff; border-radius: var(--radius-sm); margin-bottom: 10px; }
.ts-check-all-label { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; cursor: pointer; }

/* ===========================================
   CERTIFICATE MANAGEMENT
   =========================================== */
.ts-cert-grid { display: flex; flex-direction: column; gap: 8px; }
.ts-cert-item-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; display: flex; align-items: center; gap: 10px; }
.ts-cert-item-check { flex-shrink: 0; }
.ts-cert-item-check input { width: 17px; height: 17px; cursor: pointer; }
.ts-cert-item-body { flex: 1; min-width: 0; }
.ts-cert-item-name   { font-weight: 700; font-size: 14px; color: var(--primary); }
.ts-cert-item-school { font-size: 12px; color: var(--text-muted); }
.ts-cert-item-course { font-size: 12px; margin: 3px 0; }
.ts-cert-item-meta   { display: flex; gap: 6px; align-items: center; margin-top: 4px; flex-wrap: wrap; }
.ts-cert-item-action { flex-shrink: 0; }

.ts-cert-issued-list { display: flex; flex-direction: column; gap: 10px; }
.ts-issued-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; box-shadow: var(--card-shadow); }
.ts-issued-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.ts-issued-name   { font-weight: 700; font-size: 15px; color: var(--primary); }
.ts-issued-school { font-size: 12px; color: var(--text-muted); }
.ts-issued-course { font-size: 12px; margin-top: 3px; }
.ts-cert-number   { font-size: 12px; font-weight: 700; color: var(--accent); }
.ts-issued-date   { font-size: 11px; color: var(--text-muted); }
.ts-issued-actions { display: flex; gap: 5px; align-items: center; flex-wrap: wrap; padding-top: 9px; border-top: 1px solid var(--border); }

/* ===========================================
   SUBMISSION REVIEW
   =========================================== */
.ts-submission-card { padding: 14px; margin-bottom: 10px; }
.ts-sub-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.ts-sub-name   { font-weight: 700; font-size: 14px; color: var(--primary); }
.ts-sub-school { font-size: 12px; color: var(--text-muted); }
.ts-sub-info   { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.ts-sub-content { background: #f8fbff; border-radius: var(--radius-sm); padding: 10px; margin-bottom: 8px; display: flex; align-items: flex-start; gap: 7px; word-break: break-all; }
.ts-sub-type-icon { font-size: 16px; flex-shrink: 0; }
.ts-sub-text { font-size: 13px; white-space: pre-wrap; }
.ts-sub-feedback { background: #fef9e7; border-left: 3px solid var(--accent-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 9px 11px; margin-bottom: 8px; font-size: 12px; }
.ts-review-form { margin-top: 8px; }
.ts-review-row { display: flex; flex-direction: column; gap: 8px; }
.ts-review-textarea { min-height: 55px; resize: vertical; }
.ts-review-select { min-width: 130px; }
.ts-review-actions { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

/* ===========================================
   SCROLLBAR
   =========================================== */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #bdc3c7; border-radius: 3px; }

/* ===========================================
   PASSWORD STRENGTH
   =========================================== */
#pwd-strength { width: 0; transition: width .3s, background .3s; }

/* ===========================================
   SPINNER
   =========================================== */
.ts-spinner { display: inline-block; width: 18px; height: 18px; border: 3px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===========================================
   RESPONSIVE — MOBILE  (< 600px)
   =========================================== */
@media (max-width: 599px) {
  :root { --nav-h: 52px; --sub-nav-h: 0px; }

  /* Show mobile bottom nav */
  .ts-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    z-index: 200;
    box-shadow: 0 -3px 12px rgba(0,0,0,.08);
    height: var(--mob-nav-h);
  }
  .ts-bottom-nav a {
    flex: 1; text-align: center; padding: 8px 3px 6px;
    text-decoration: none; color: var(--text-muted);
    font-size: 10px; font-weight: 600;
    border-top: 3px solid transparent; transition: all .2s;
    display: flex; flex-direction: column; align-items: center;
  }
  .ts-bottom-nav a.active, .ts-bottom-nav a:hover { color: var(--primary); border-top-color: var(--primary); }
  .ts-bottom-nav .nav-icon { font-size: 20px; display: block; margin-bottom: 1px; }

  /* Page body leaves space for bottom nav */
  .ts-page-body { padding: 10px 10px calc(var(--mob-nav-h) + 10px); }

  /* Hide sub-nav on mobile */
  .ts-sub-nav { display: none; }

  /* Show brand icon only */
  .ts-navbar-brand .brand-text { display: none; }

  /* Compact elements */
  .ts-page-title { font-size: 16px; }
  .ts-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .ts-menu-grid  { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .ts-menu-icon  { font-size: 26px; }
  .ts-menu-label { font-size: 12px; }
  .ts-menu-item  { padding: 14px 8px; }
  .ts-modal      { padding: 16px 13px; }
  .ts-table      { font-size: 12px; }
  .ts-table thead th, .ts-table tbody td { padding: 8px 6px; }
  .ts-btn-xs     { font-size: 11px; padding: 3px 7px; }
  .ts-cert-item-card { flex-wrap: wrap; }
  .ts-cert-item-action { width: 100%; margin-top: 6px; }
  .ts-issued-header { flex-direction: column; gap: 6px; }
  .ts-filter-grid { grid-template-columns: 1fr; }
}

/* ===========================================
   RESPONSIVE — TABLET  (600–899px)
   =========================================== */
@media (min-width: 600px) and (max-width: 899px) {
  :root { --nav-h: 55px; --sub-nav-h: 0px; }

  /* Mobile bottom nav for tablet too */
  .ts-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    z-index: 200;
    box-shadow: 0 -3px 12px rgba(0,0,0,.08);
    height: var(--mob-nav-h);
  }
  .ts-bottom-nav a {
    flex: 1; text-align: center; padding: 9px 4px 7px;
    text-decoration: none; color: var(--text-muted);
    font-size: 11px; font-weight: 600;
    border-top: 3px solid transparent;
    display: flex; flex-direction: column; align-items: center;
  }
  .ts-bottom-nav a.active, .ts-bottom-nav a:hover { color: var(--primary); border-top-color: var(--primary); }
  .ts-bottom-nav .nav-icon { font-size: 21px; display: block; margin-bottom: 2px; }

  .ts-page-body { padding: 14px 14px calc(var(--mob-nav-h) + 14px); }
  .ts-sub-nav { display: none; }

  .ts-stats-grid { grid-template-columns: repeat(4, 1fr); }
  .ts-menu-grid  { grid-template-columns: repeat(3, 1fr); }
  .ts-cert-grid  { display: grid; grid-template-columns: 1fr 1fr; }
}

/* ===========================================
   RESPONSIVE — DESKTOP  (≥ 900px)
   =========================================== */
@media (min-width: 900px) {
  :root { --nav-h: 58px; --sub-nav-h: 44px; }

  /* Show sub-nav, hide mobile bottom nav */
  .ts-sub-nav { display: flex; }
  .ts-bottom-nav { display: none !important; }

  /* Show brand text */
  .ts-navbar-brand .brand-text { display: inline; }
  .ts-navbar { padding: 0 28px; }
  .ts-navbar-user { max-width: 200px; font-size: 13px; }

  /* Page layout */
  .ts-page-body { padding: 20px 24px 32px; max-width: 1120px; }

  /* Grids */
  .ts-stats-grid { grid-template-columns: repeat(4, 1fr); gap: 14px; }
  .ts-menu-grid  { grid-template-columns: repeat(5, 1fr); gap: 12px; }
  .ts-menu-item  { padding: 22px 12px; }
  .ts-menu-icon  { font-size: 36px; }
  .ts-menu-label { font-size: 13px; }
  .ts-stat-num   { font-size: 32px; }

  /* Tables */
  .ts-table { font-size: 14px; }
  .ts-table thead th, .ts-table tbody td { padding: 12px 14px; }

  /* Cert grid 2-col */
  .ts-cert-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

  /* Issued certs 2-col */
  .ts-cert-issued-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

  /* Review form side by side */
  .ts-review-row { flex-direction: row; align-items: flex-end; }
  .ts-review-textarea { flex: 1; }

  /* Page title larger */
  .ts-page-title { font-size: 22px; }

  /* Wider modal */
  .ts-modal { max-width: 560px; }
  .ts-card { padding: 22px 20px; }
}

/* ===========================================
   LARGE DESKTOP  (≥ 1280px)
   =========================================== */
@media (min-width: 1280px) {
  .ts-page-body { max-width: 1280px; }
  .ts-menu-grid  { grid-template-columns: repeat(6, 1fr); }
}

/* =========================================
   ENHANCED UI — Vibrant Colors & Buttons v4
   ========================================= */

/* ── NEW Color Palette ── */
:root {
  /* Primary: Rich Navy → Royal Blue */
  --primary:       #1e3a8a;
  --primary-light: #2563eb;
  --primary-dark:  #1e3a5f;

  /* Accents */
  --accent:        #ea580c;
  --accent-light:  #f97316;
  --success:       #16a34a;
  --danger:        #dc2626;
  --warning:       #d97706;
  --info:          #0891b2;
  --purple:        #7c3aed;
  --pink:          #db2777;

  /* Enhanced shadows */
  --card-shadow: 0 2px 16px rgba(30,58,138,.09);
  --btn-shadow-primary: 0 4px 14px rgba(37,99,235,.40);
  --btn-shadow-success: 0 4px 14px rgba(22,163,74,.35);
  --btn-shadow-danger:  0 4px 14px rgba(220,38,38,.35);
  --btn-shadow-warning: 0 4px 14px rgba(217,119,6,.35);
  --btn-shadow-accent:  0 4px 14px rgba(234,88,12,.35);
}

/* ── TOP NAVBAR — gradient vivid ── */
.ts-navbar {
  background: linear-gradient(135deg, #1e3a5f 0%, #1e3a8a 50%, #2563eb 100%) !important;
  box-shadow: 0 3px 20px rgba(30,58,138,.30) !important;
}
.ts-logout-btn {
  background: rgba(255,255,255,.18) !important;
  border-color: rgba(255,255,255,.35) !important;
  backdrop-filter: blur(4px);
}
.ts-logout-btn:hover {
  background: rgba(255,255,255,.28) !important;
}

/* ── SUB-NAV (desktop) ── */
.ts-sub-nav {
  background: var(--white);
  border-bottom: 2px solid #e5e7eb;
}
.ts-sub-nav a        { color: #6b7280; font-weight: 600; }
.ts-sub-nav a:hover  { color: var(--primary-light); border-bottom-color: var(--primary-light); }
.ts-sub-nav a.active {
  color: var(--primary-light);
  border-bottom-color: var(--primary-light);
  background: linear-gradient(180deg, rgba(37,99,235,.05) 0%, transparent 100%);
}

/* ── MOBILE BOTTOM NAV ── */
.ts-bottom-nav { background: #fff; border-top: 1px solid #e5e7eb; }
.ts-bottom-nav a { color: #9ca3af; }
.ts-bottom-nav a.active {
  color: var(--primary-light);
  border-top-color: var(--primary-light);
  background: linear-gradient(180deg, rgba(37,99,235,.06) 0%, transparent 100%);
}

/* ── BUTTONS — vivid with gradient & shadow ── */
.ts-btn {
  border-radius: 8px !important;
  letter-spacing: .2px;
  transition: all .2s cubic-bezier(.4,0,.2,1) !important;
}

/* Primary — Blue */
.ts-btn-primary {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%) !important;
  box-shadow: var(--btn-shadow-primary) !important;
  border: none !important;
}
.ts-btn-primary:hover {
  background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 20px rgba(37,99,235,.50) !important;
}

/* Success — Green */
.ts-btn-success {
  background: linear-gradient(135deg, #15803d 0%, #16a34a 100%) !important;
  box-shadow: var(--btn-shadow-success) !important;
}
.ts-btn-success:hover {
  background: linear-gradient(135deg, #166534 0%, #22c55e 100%) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 20px rgba(22,163,74,.50) !important;
}

/* Danger — Red */
.ts-btn-danger {
  background: linear-gradient(135deg, #b91c1c 0%, #dc2626 100%) !important;
  box-shadow: var(--btn-shadow-danger) !important;
}
.ts-btn-danger:hover {
  background: linear-gradient(135deg, #991b1b 0%, #ef4444 100%) !important;
  transform: translateY(-2px) !important;
}

/* Warning — Amber/Gold */
.ts-btn-warning {
  background: linear-gradient(135deg, #b45309 0%, #d97706 100%) !important;
  box-shadow: var(--btn-shadow-warning) !important;
  color: #fff !important;
}
.ts-btn-warning:hover {
  background: linear-gradient(135deg, #92400e 0%, #f59e0b 100%) !important;
  transform: translateY(-2px) !important;
}

/* Accent — Orange */
.ts-btn-accent {
  background: linear-gradient(135deg, #c2410c 0%, #ea580c 100%) !important;
  box-shadow: var(--btn-shadow-accent) !important;
}
.ts-btn-accent:hover {
  background: linear-gradient(135deg, #9a3412 0%, #f97316 100%) !important;
  transform: translateY(-2px) !important;
}

/* Outline */
.ts-btn-outline {
  background: transparent !important;
  color: var(--primary-light) !important;
  border: 2px solid var(--primary-light) !important;
}
.ts-btn-outline:hover {
  background: rgba(37,99,235,.08) !important;
  transform: translateY(-1px) !important;
}

/* ── STAT CARDS — colored gradient tops ── */
.ts-stat-card {
  border-top: 4px solid var(--primary-light) !important;
  border-radius: 14px !important;
  transition: transform .2s, box-shadow .2s;
}
.ts-stat-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(30,58,138,.14) !important; }
.ts-stat-card.accent  { border-top-color: var(--accent-light) !important; }
.ts-stat-card.success { border-top-color: var(--success) !important; }
.ts-stat-card.warning { border-top-color: var(--warning) !important; }
.ts-stat-card.danger  { border-top-color: var(--danger)  !important; }

.ts-stat-num { color: var(--primary-light) !important; }
.ts-stat-card.accent  .ts-stat-num { color: var(--accent-light) !important; }
.ts-stat-card.success .ts-stat-num { color: var(--success) !important; }
.ts-stat-card.warning .ts-stat-num { color: var(--warning) !important; }
.ts-stat-card.danger  .ts-stat-num { color: var(--danger)  !important; }

/* ── MENU GRID ITEMS — colored icons & hover ── */
.ts-menu-item {
  border-radius: 14px !important;
  border: 2px solid transparent !important;
  transition: all .22s cubic-bezier(.4,0,.2,1) !important;
  position: relative; overflow: hidden;
}
.ts-menu-item::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,.04) 0%, rgba(124,58,237,.04) 100%);
  opacity: 0; transition: opacity .2s;
}
.ts-menu-item:hover::before { opacity: 1; }
.ts-menu-item:hover {
  border-color: var(--primary-light) !important;
  transform: translateY(-4px) !important;
  box-shadow: 0 10px 30px rgba(37,99,235,.18) !important;
}
.ts-menu-icon { font-size: 34px !important; }

/* ── TABLE HEADER — gradient ── */
.ts-table thead th {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%) !important;
  font-size: 12px;
  letter-spacing: .4px;
  text-transform: uppercase;
}
.ts-table tbody tr:hover { background: rgba(37,99,235,.04) !important; }

/* ── BADGES — more vivid ── */
.ts-badge { font-size: 12px !important; padding: 4px 11px !important; border-radius: 20px !important; font-weight: 700 !important; }
.ts-badge-pending  { background: #fef3c7 !important; color: #92400e !important; border-color: #fcd34d !important; }
.ts-badge-approved { background: #dcfce7 !important; color: #15803d !important; border-color: #86efac !important; }
.ts-badge-rejected { background: #fee2e2 !important; color: #b91c1c !important; border-color: #fca5a5 !important; }
.ts-badge-open     { background: #dbeafe !important; color: #1d4ed8 !important; border-color: #93c5fd !important; }
.ts-badge-closed   { background: #f3f4f6 !important; color: #4b5563 !important; border-color: #d1d5db !important; }
.ts-badge-pass     { background: #dcfce7 !important; color: #15803d !important; border-color: #86efac !important; }
.ts-badge-fail     { background: #fee2e2 !important; color: #b91c1c !important; border-color: #fca5a5 !important; }

/* ── ALERT — more vivid left border ── */
.ts-alert-danger  { border-left-color: #dc2626 !important; background: #fff1f2 !important; }
.ts-alert-success { border-left-color: #16a34a !important; background: #f0fdf4 !important; }
.ts-alert-warning { border-left-color: #d97706 !important; background: #fffbeb !important; }
.ts-alert-info    { border-left-color: #0891b2 !important; background: #ecfeff !important; }

/* ── CARD enhancements ── */
.ts-card { border-radius: 16px !important; border: 1px solid rgba(37,99,235,.07); }
.ts-card-title { color: var(--primary) !important; }

/* ── TABS ── */
.ts-tab.active { color: var(--primary-light) !important; border-bottom-color: var(--primary-light) !important; }
.c-tab.active  { color: var(--primary-light) !important; border-bottom-color: var(--primary-light) !important; }

/* ── PROGRESS BAR ── */
.ts-progress-bar { background: linear-gradient(90deg, #1d4ed8, #60a5fa) !important; }
.ts-progress-bar.pass { background: linear-gradient(90deg, #15803d, #4ade80) !important; }

/* ── PAGE TITLE ── */
.ts-page-title { color: var(--primary) !important; }

/* ── CERT CARD ── */
.ts-cert-card { border-color: #f59e0b !important; border-width: 3px !important; }
.ts-cert-name { color: #ea580c !important; }

/* ── STAT PILLS (header) ── */
.ts-stat-pill.ts-stat-warning { background: #fef3c7 !important; color: #92400e !important; border-color: #fcd34d !important; }
.ts-stat-pill.ts-stat-success { background: #dcfce7 !important; color: #15803d !important; border-color: #86efac !important; }

/* ── CERT ITEM CARDS (certificates page) ── */
.c-fsbadge.c-fs-personal { background: #dcfce7 !important; color: #15803d !important; border-color: #86efac !important; }
.c-fsbadge.c-fs-template { background: #dbeafe !important; color: #1d4ed8 !important; border-color: #93c5fd !important; }
.c-fsbadge.c-fs-none     { background: #fef3c7 !important; color: #92400e !important; border-color: #fcd34d !important; }

/* ── FILTER BAR & BULK BAR ── */
.ts-bulk-bar { background: linear-gradient(135deg, #eff6ff, #eef2ff) !important; border: 1px solid #bfdbfe !important; }

/* ── LOGIN PAGE BUTTON ── */
.ts-btn-primary.ts-btn-block {
  background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%) !important;
  box-shadow: 0 6px 20px rgba(37,99,235,.40) !important;
  padding: 14px !important;
  font-size: 16px !important;
  border-radius: 10px !important;
}

/* ── TAB BADGE ── */
.ts-tab-badge { background: #dc2626 !important; }

/* ── INPUT FOCUS ── */
.ts-input:focus {
  border-color: var(--primary-light) !important;
  box-shadow: 0 0 0 3px rgba(37,99,235,.15) !important;
}

/* ── SCROLLBAR (colored) ── */
::-webkit-scrollbar-thumb { background: #93c5fd; }
::-webkit-scrollbar-thumb:hover { background: #2563eb; }

/* ── HOVER glow on action buttons ── */
.ts-btn-xs:hover { transform: translateY(-1px) !important; opacity: .88; }