/* =============================================================
   TOEIC Registration — Design System (shadcn/ui · KU Green)
   ============================================================= */

/* --- Design tokens --- */
:root {
  --ku-green:   #006B54;
  --ku-hover:   #005443;
  --ku-teal:    #0d9488;
  --ku-light:   #E8F5F2;
  --ku-border:  #dce9e5;
  --ku-muted:   #5a7a72;
  --ku-dark:    #1a2e28;
  --ku-bg:      #f4f7f5;
  --ku-radius:       0.5rem;
  --ku-radius-card:  1rem;
  --ku-radius-pill:  999px;
  --ku-shadow:       0 1px 4px rgba(0,107,84,.06);
  --ku-shadow-card:  0 4px 20px rgba(0,107,84,.09);
  --ku-shadow-hover: 0 10px 30px rgba(0,107,84,.16);
  --ku-ring:    0 0 0 3px rgba(0,107,84,.14);
  --ku-gradient: linear-gradient(135deg, var(--ku-green) 0%, var(--ku-teal) 100%);
  --ku-gradient-hover: linear-gradient(135deg, var(--ku-hover) 0%, #0a7a70 100%);
}

*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: 'Sarabun', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--ku-bg);
  color: var(--ku-dark);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

/* ================================================================
   PUBLIC HEADER
   ================================================================ */
.ku-header {
  background: linear-gradient(135deg, #006B54 0%, #004437 100%);
  padding: 2rem 0 2.75rem;
  position: relative;
  overflow: hidden;
}
.ku-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 85% -10%, rgba(255,255,255,.08) 0%, transparent 55%);
  pointer-events: none;
}
.ku-header .container { position: relative; }
.ku-header h1 {
  color: #fff;
  font-size: 1.75rem;
  font-weight: 800;
  margin: .65rem 0 .2rem;
  letter-spacing: -.02em;
  line-height: 1.2;
}
.ku-header p {
  color: rgba(255,255,255,.72);
  font-size: .9rem;
  margin: 0;
}

/* Logo row */
.ku-logo-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: .35rem;
  flex-wrap: nowrap;
}
.ku-logo-row .logo-ku {
  height: 44px;
  width: 44px;
  object-fit: contain;
  background: rgba(255,255,255,.94);
  border-radius: 8px;
  padding: 4px;
  flex-shrink: 0;
}
.ku-logo-row .logo-cpa {
  height: 38px;
  width: auto;
  max-width: 88px;
  object-fit: contain;
  background: rgba(255,255,255,.94);
  border-radius: 8px;
  padding: 4px 8px;
  flex-shrink: 0;
}
.ku-logo-divider {
  width: 1px;
  height: 32px;
  background: rgba(255,255,255,.22);
  flex-shrink: 0;
}
.ku-org-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.ku-org-text .sub {
  font-size: .7rem;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  letter-spacing: .07em;
  font-weight: 500;
}
.ku-org-text .main {
  font-size: .88rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ================================================================
   CARD  (shadcn/ui Card — white header, no green gradient)
   ================================================================ */
.ku-card {
  background: #fff;
  border: 1.5px solid var(--ku-border);
  border-radius: var(--ku-radius-card);
  box-shadow: var(--ku-shadow-card);
  overflow: hidden;
}

.ku-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .55rem;
  padding: .9rem 1.4rem;
  background: transparent;             /* ← no green, matches shadcn */
  border-bottom: 1.5px solid var(--ku-border);
  font-weight: 700;
  font-size: .93rem;
  color: var(--ku-dark);
}
.ku-card-header > span:first-child { display: flex; align-items: center; gap: .5rem; }
.ku-card-header i { color: var(--ku-green); }
.ku-card-header.ku-header-on-gradient,
.ku-card-header.ku-header-on-gradient i { color: #fff; }
.ku-card-body { padding: 1.25rem 1.4rem; }

/* ================================================================
   FORM CONTROLS  (shadcn/ui Input)
   ================================================================ */
.ku-input,
.ku-select {
  display: block;
  width: 100%;
  height: 40px;
  padding: .45rem .85rem;
  font-size: .93rem;
  font-family: inherit;
  color: var(--ku-dark);
  background: #fff;
  border: 1.5px solid var(--ku-border);
  border-radius: var(--ku-radius);
  transition: border-color .15s, box-shadow .15s;
  line-height: 1.5;
  appearance: auto;
}
.ku-input::placeholder { color: #adb5b2; }
.ku-input:focus, .ku-select:focus {
  outline: none;
  border-color: var(--ku-green);
  box-shadow: var(--ku-ring);
}
textarea.ku-input { height: auto; resize: vertical; }

.ku-label {
  display: block;
  font-size: .76rem;
  font-weight: 700;
  color: var(--ku-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .38rem;
}
.ku-required { color: #dc2626; margin-left: 1px; }

/* ================================================================
   BUTTONS  (shadcn/ui Button)
   ================================================================ */
.btn-ku {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1.4rem;
  background: var(--ku-gradient);
  color: #fff;
  border: none;
  border-radius: var(--ku-radius-pill);
  font-size: .9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background .2s, transform .15s, box-shadow .2s;
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(0,107,84,.22);
}
.btn-ku:hover { background: var(--ku-gradient-hover); color: #fff; box-shadow: 0 6px 20px rgba(0,107,84,.3); transform: translateY(-1px); }
.btn-ku:active { transform: scale(.98) translateY(0); }
.btn-ku:disabled,
.btn-ku[disabled] { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-ku.w-100 { width: 100%; justify-content: center; }

.btn-ku-outline {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1.3rem;
  background: transparent;
  color: var(--ku-green);
  border: 1.5px solid var(--ku-green);
  border-radius: var(--ku-radius-pill);
  font-size: .9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background .15s, transform .1s, border-color .15s;
  text-decoration: none;
}
.btn-ku-outline:hover { background: var(--ku-light); color: var(--ku-green); border-color: var(--ku-teal); }
.btn-ku-outline:active { transform: scale(.98); }
.btn-ku-outline:disabled,
.btn-ku-outline[disabled] { opacity: .5; cursor: not-allowed; transform: none; }

.btn-sm-ku {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .3rem .85rem;
  font-size: .8rem;
  font-weight: 600;
  border-radius: var(--ku-radius-pill);
  cursor: pointer;
  text-decoration: none;
  transition: background .12s, transform .1s;
  font-family: inherit;
  white-space: nowrap;
}
.btn-sm-ku:active { transform: scale(.96); }
.btn-sm-ku:disabled,
.btn-sm-ku[disabled] { opacity: .5; cursor: not-allowed; transform: none; }
.btn-sm-ku.outline {
  background: transparent;
  color: var(--ku-green);
  border: 1.5px solid var(--ku-border);
}
.btn-sm-ku.outline:hover { background: var(--ku-light); border-color: var(--ku-green); }
.btn-sm-ku.filled { background: var(--ku-gradient); color: #fff; border: none; }
.btn-sm-ku.filled:hover { background: var(--ku-gradient-hover); }

/* ================================================================
   RADIO CARDS
   ================================================================ */
.ku-radio-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .7rem;
}
.ku-radio-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem .7rem;
  border: 2px solid var(--ku-border);
  border-radius: 14px;
  cursor: pointer;
  text-align: center;
  transition: border-color .15s, background .15s, transform .1s, box-shadow .15s;
  user-select: none;
  background: #fff;
}
.ku-radio-card:hover {
  border-color: var(--ku-green);
  background: var(--ku-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0,107,84,.11);
}
.ku-radio-card.active {
  border-color: var(--ku-green);
  background: var(--ku-light);
  box-shadow: 0 0 0 3px rgba(0,107,84,.14), 0 2px 8px rgba(0,107,84,.08);
}
.ku-radio-card .icon { font-size: 1.9rem; margin-bottom: .35rem; }
.ku-radio-card .label {
  font-size: .84rem;
  font-weight: 700;
  color: var(--ku-green);
  line-height: 1.3;
}
/* Horizontal variant (round cards) */
.ku-radio-card.flex-row {
  flex-direction: row;
  text-align: left;
  padding: .8rem 1rem;
}

/* ================================================================
   BADGES
   ================================================================ */
.ku-badge {
  display: inline-flex;
  align-items: center;
  gap: .2rem;
  padding: .18em .6em;
  font-size: .73rem;
  font-weight: 700;
  border-radius: 20px;
  white-space: nowrap;
}
.ku-badge-paid      { background: #d1fae5; color: #065f46; }
.ku-badge-pending   { background: #fef3c7; color: #92400e; }
.ku-badge-cancelled { background: #fee2e2; color: #991b1b; }
.ku-badge-info      { background: #dbeafe; color: #1e40af; }

/* ================================================================
   SECTION DIVIDER
   ================================================================ */
.ku-section { margin: 1.2rem 0 .65rem; }
.ku-section-title {
  font-size: .78rem;
  font-weight: 700;
  color: var(--ku-green);
  text-transform: uppercase;
  letter-spacing: .06em;
  display: flex;
  align-items: center;
  gap: .4rem;
}
.ku-section-title::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 13px;
  background: var(--ku-green);
  border-radius: 2px;
  flex-shrink: 0;
}

/* ================================================================
   CHECKBOX
   ================================================================ */
.ku-check {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  cursor: pointer;
  margin-bottom: .4rem;
  padding: .38rem .5rem;
  border-radius: var(--ku-radius);
  transition: background .12s;
  line-height: 1.5;
}
.ku-check:hover { background: var(--ku-light); }
.ku-check input {
  margin-top: .22rem;
  accent-color: var(--ku-green);
  flex-shrink: 0;
  cursor: pointer;
  width: 15px;
  height: 15px;
}

/* ================================================================
   FORM HINTS
   ================================================================ */
.ku-hint {
  font-size: .78rem;
  color: var(--ku-muted);
  margin-top: .28rem;
  line-height: 1.5;
  display: flex;
  gap: .3rem;
  align-items: flex-start;
}
.ku-hint i { margin-top: .1rem; flex-shrink: 0; color: var(--ku-green); opacity: .7; }
.ku-hint code { background: #e8f5f2; color: #065f46; padding: .05em .35em; border-radius: 3px; font-size: .9em; }
.ku-hint em { color: #374151; font-style: normal; font-weight: 600; }

/* ================================================================
   FEE SUMMARY
   ================================================================ */
.fee-summary {
  background: var(--ku-light);
  border: 1.5px solid #c0ddd6;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  font-size: .9rem;
}
.fee-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .32rem 0;
  border-bottom: 1px solid rgba(0,107,84,.08);
  gap: .5rem;
}
.fee-row:last-child { border-bottom: none; }
.fee-total {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ku-green);
  padding-top: .5rem;
  margin-top: .2rem;
  border-top: 2px solid var(--ku-border) !important;
  border-bottom: none !important;
}

/* ================================================================
   QR / SLIP
   ================================================================ */
.qr-box {
  background: #fff;
  border: 2px dashed var(--ku-border);
  border-radius: 12px;
  padding: 1.25rem;
  text-align: center;
}

/* ================================================================
   SPINNER / ANIMATIONS
   ================================================================ */
.spinner {
  display: inline-block;
  width: 22px; height: 22px;
  border: 2.5px solid rgba(0,107,84,.2);
  border-top-color: var(--ku-green);
  border-radius: 50%;
  animation: spin .65s linear infinite;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

@keyframes popIn {
  0%   { transform: scale(.92) translateY(10px); opacity: 0; }
  65%  { transform: scale(1.01); }
  100% { transform: scale(1) translateY(0); opacity: 1; }
}
.pop-in { animation: popIn .35s ease-out; }

/* ================================================================
   ADMIN LAYOUT
   ================================================================ */
.admin-body { margin: 0; background: var(--ku-bg); }
.admin-wrap { display: flex; min-height: 100vh; }

.admin-sidebar {
  width: 240px;
  background: #0a1f18;
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  overflow-y: auto;
  z-index: 100;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.1) transparent;
  will-change: transform;
}
.admin-sidebar::-webkit-scrollbar { width: 6px; }
.admin-sidebar::-webkit-scrollbar-track { background: transparent; }
.admin-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 3px; }
.admin-sidebar::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.18); }
.admin-sidebar .brand {
  padding: 1.1rem 1.2rem;
  border-bottom: 1px solid rgba(255,255,255,.07);
  display: flex;
  align-items: center;
  gap: .7rem;
  font-weight: 700;
  font-size: .9rem;
  color: #fff;
  text-decoration: none;
  flex-shrink: 0;
}
.admin-sidebar .brand small {
  display: block;
  font-size: .7rem;
  color: rgba(255,255,255,.35);
  font-weight: 400;
  margin-top: .06rem;
}
.admin-sidebar .sidebar-nav {
  flex: 1;
  padding: .6rem .65rem;
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
.admin-sidebar .sidebar-nav a {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .52rem .8rem;
  border-radius: var(--ku-radius-pill);
  font-size: .85rem;
  font-weight: 500;
  color: rgba(255,255,255,.55);
  text-decoration: none;
  transition: background .15s, color .15s, transform .15s;
}
.admin-sidebar .sidebar-nav a i { font-size: .95rem; flex-shrink: 0; }
.admin-sidebar .sidebar-nav a:hover {
  background: rgba(255,255,255,.07);
  color: rgba(255,255,255,.9);
}
.admin-sidebar .sidebar-nav a.active {
  background: linear-gradient(135deg, rgba(13,148,136,.35) 0%, rgba(0,139,110,.35) 100%);
  color: #5eead4;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(13,148,136,.18);
}
.admin-sidebar .nav-group {
  font-size: .67rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255,255,255,.28);
  padding: .7rem .8rem .2rem;
  font-weight: 700;
}
.admin-sidebar .sidebar-user {
  padding: .9rem 1.1rem;
  border-top: 1px solid rgba(255,255,255,.07);
  display: flex;
  align-items: center;
  gap: .6rem;
  flex-shrink: 0;
}
.admin-sidebar .avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--ku-green);
  color: #fff;
  font-weight: 700;
  font-size: .82rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.admin-sidebar .name {
  font-size: .83rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: rgba(255,255,255,.85);
  max-width: 120px;
}
.admin-sidebar .role { font-size: .7rem; color: rgba(255,255,255,.35); }

.admin-content {
  margin-left: 240px;
  flex: 1;
  min-width: 0;   /* flex items default to min-width:auto — without this, wide
                     content (tables, grids) forces the whole page to overflow
                     horizontally instead of scrolling internally */
  padding: 2rem 2.5rem;
  min-height: 100vh;
}

.admin-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  gap: 1rem;
}
.admin-page-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--ku-dark);
  letter-spacing: -.02em;
  line-height: 1.2;
}
.admin-page-title small {
  display: block;
  font-size: .8rem;
  color: var(--ku-muted);
  font-weight: 400;
  letter-spacing: 0;
  margin-top: .18rem;
}

/* ================================================================
   ADMIN CARDS
   ================================================================ */
.admin-card {
  background: #fff;
  border: 1.5px solid var(--ku-border);
  border-radius: var(--ku-radius-card);
  box-shadow: var(--ku-shadow-card);
  overflow: hidden;
}
.admin-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .85rem 1.2rem;
  border-bottom: 1.5px solid var(--ku-border);
  font-weight: 700;
  font-size: .88rem;
  color: var(--ku-dark);
  background: transparent;
  gap: .5rem;
}
.admin-card-header i { color: var(--ku-green); }
.admin-card-body { padding: 1.2rem; }

/* ================================================================
   STAT CARDS
   ================================================================ */
.stat-card {
  background: #fff;
  border: 1.5px solid var(--ku-border);
  border-radius: var(--ku-radius-card);
  padding: 1.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--ku-shadow-card);
  transition: box-shadow .2s, transform .2s;
}
.stat-card:hover { box-shadow: var(--ku-shadow-hover); transform: translateY(-2px); }
.stat-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.stat-icon.blue   { background: #dbeafe; color: #1d4ed8; }
.stat-icon.green  { background: #d1fae5; color: #065f46; }
.stat-icon.yellow { background: #fef3c7; color: #92400e; }
.stat-icon.purple { background: #ede9fe; color: #5b21b6; }
.stat-icon.red    { background: #fee2e2; color: #991b1b; }
.stat-icon.teal   { background: var(--ku-light); color: var(--ku-green); }
/* The text block next to the icon is a flex child — without min-width:0 a long
   value (e.g. a currency amount) can't shrink and gets clipped by the card. */
.stat-card > div:last-child { min-width: 0; flex: 1; }
.stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1.15;
  background: var(--ku-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  overflow-wrap: break-word;
}
.stat-label { font-size: .78rem; color: var(--ku-muted); margin-top: .08rem; }

/* ================================================================
   CHARTS (Dashboard — trend + breakdown)
   ================================================================ */
.chart-legend { display: flex; gap: 1.1rem; flex-wrap: wrap; margin-bottom: .6rem; font-size: .78rem; color: var(--ku-muted); }
.legend-item { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; }
.legend-key { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; display: inline-block; }
.chart-wrap { position: relative; }
.viz-svg { width: 100%; height: auto; display: block; overflow: visible; }
.bar-hit { cursor: pointer; }
.viz-tooltip {
  position: absolute; z-index: 5; pointer-events: none;
  background: var(--ku-dark); color: #fff; border-radius: 8px;
  padding: .5rem .65rem; font-size: .76rem; line-height: 1.5;
  box-shadow: 0 8px 20px rgba(0,0,0,.18); min-width: 120px;
  transition: opacity .1s;
}
.viz-tt-title { font-weight: 700; margin-bottom: .2rem; opacity: .85; }
.viz-tt-row { display: flex; align-items: center; gap: .4rem; white-space: nowrap; }
.viz-tt-row strong { margin-left: auto; font-variant-numeric: tabular-nums; }
.viz-tt-key { width: 8px; height: 8px; border-radius: 2px; flex-shrink: 0; display: inline-block; }

/* Horizontal bar breakdown */
.hbar-row { display: flex; align-items: center; gap: .7rem; padding: .5rem 0; border-radius: 8px; transition: background .12s; }
.hbar-row:hover { background: #f8faf9; }
.hbar-label { width: 108px; flex-shrink: 0; font-size: .82rem; color: var(--ku-dark); display: flex; align-items: center; gap: .4rem; font-weight: 600; }
.hbar-track { flex: 1; min-width: 0; height: 14px; background: #f1f5f4; border-radius: 20px; overflow: hidden; }
.hbar-fill { height: 100%; min-width: 3px; border-radius: 20px; transition: width .4s; }
.hbar-value { width: 42px; flex-shrink: 0; text-align: right; font-weight: 800; font-size: .88rem; color: var(--ku-dark); font-variant-numeric: tabular-nums; }

/* ================================================================
   ROUND CARDS (Dashboard — per-round breakdown)
   ================================================================ */
.round-card {
  background: #fff;
  border: 1.5px solid var(--ku-border);
  border-radius: var(--ku-radius-card);
  box-shadow: var(--ku-shadow-card);
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  height: 100%;
  transition: box-shadow .2s, transform .2s;
}
.round-card:hover { box-shadow: var(--ku-shadow-hover); transform: translateY(-2px); }
.round-card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: .5rem; }
.round-card-name { font-weight: 700; font-size: .95rem; color: var(--ku-dark); line-height: 1.3; }
.round-card-date { font-size: .78rem; color: var(--ku-muted); margin-top: .15rem; display: flex; align-items: center; gap: .3rem; }
.round-card-status {
  font-size: .68rem; font-weight: 700; padding: .18em .65em; border-radius: 20px;
  white-space: nowrap; flex-shrink: 0;
}
.round-card-status.open   { background: #d1fae5; color: #065f46; }
.round-card-status.closed { background: #f1f5f4; color: var(--ku-muted); }

.capacity-bar-wrap { display: flex; justify-content: space-between; align-items: baseline; font-size: .76rem; color: var(--ku-muted); margin-bottom: .3rem; }
.capacity-bar { height: 7px; border-radius: 20px; background: #eef3f1; overflow: hidden; }
.capacity-bar-fill { height: 100%; border-radius: 20px; background: var(--ku-gradient); transition: width .3s; }
.capacity-bar-fill.full { background: linear-gradient(135deg, #dc2626, #ea580c); }

.round-mini-stats { display: flex; gap: .5rem; flex-wrap: wrap; }
.round-mini-stat { flex: 1; min-width: 0; text-align: center; padding: .4rem .3rem; border-radius: 10px; background: #f8faf9; }
.round-mini-stat .n { font-size: 1.05rem; font-weight: 800; line-height: 1.1; }
.round-mini-stat .l { font-size: .68rem; color: var(--ku-muted); margin-top: .1rem; }
.round-mini-stat.paid .n      { color: #065f46; }
.round-mini-stat.pending .n   { color: #92400e; }
.round-mini-stat.cancelled .n { color: #991b1b; }

.round-card-revenue {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: .6rem; border-top: 1px dashed var(--ku-border);
  font-size: .82rem;
}
.round-card-revenue .amt { font-weight: 800; color: var(--ku-green); font-size: 1rem; }
.round-card-link {
  font-size: .78rem; font-weight: 700; color: var(--ku-green); text-decoration: none;
  display: inline-flex; align-items: center; gap: .25rem;
}
.round-card-link:hover { color: var(--ku-hover); text-decoration: underline; }

/* ================================================================
   TABLE
   ================================================================ */
.ku-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .87rem;
}
.ku-table thead th {
  padding: .6rem 1rem;
  text-align: left;
  font-size: .71rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ku-muted);
  border-bottom: 2px solid var(--ku-border);
  background: #f8faf9;
  white-space: nowrap;
}
.ku-table tbody td {
  padding: .7rem 1rem;
  border-bottom: 1px solid #edf3f1;
  color: var(--ku-dark);
  vertical-align: middle;
}
.ku-table tbody tr:last-child td { border-bottom: none; }
.ku-table tbody tr { transition: background-color .1s; }
.ku-table tbody tr:hover td { background: #f2f8f6; }

/* Faculty table — collapse to stacked cards below 860px instead of
   squeezing columns or forcing horizontal scroll. */
@media (max-width: 860px) {
  #facultyTable { table-layout: auto; min-width: 0; }
  #facultyTable thead { display: none; }
  #facultyTable, #facultyTable tbody, #facultyTable tr, #facultyTable td { display: block; width: auto !important; }
  #facultyTable tbody tr {
    border: 1px solid var(--ku-border);
    border-radius: 10px;
    padding: .5rem .9rem;
    margin-bottom: .75rem;
  }
  #facultyTable tbody tr:last-child { margin-bottom: 0; }
  #facultyTable td {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .45rem 0;
    border-bottom: 1px solid #edf3f1;
    text-align: right;
  }
  #facultyTable td:last-child { border-bottom: none; }
  #facultyTable td[data-label]::before {
    content: attr(data-label);
    font-weight: 700;
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--ku-muted);
    text-align: left;
    flex-shrink: 0;
  }
  /* Long text fields read better stacked (label above value) than
     squeezed into a label-left/value-right row. */
  #facultyTable td[data-label="ชื่อภาษาไทย"],
  #facultyTable td[data-label="ชื่อภาษาอังกฤษ"] {
    flex-direction: column;
    align-items: flex-start;
    gap: .2rem;
    text-align: left;
  }
  #facultyTable td[colspan] { display: block; text-align: center; }
  #facultyTable td[colspan]::before { content: none; }
}

/* ================================================================
   DATATABLES OVERRIDES
   ================================================================ */
div.dataTables_wrapper {
  font-size: .87rem;
  font-family: 'Sarabun', sans-serif;
}
div.dataTables_filter input {
  border: 1.5px solid var(--ku-border) !important;
  border-radius: 6px !important;
  padding: .32rem .7rem !important;
  font-family: inherit !important;
  font-size: .87rem !important;
}
div.dataTables_filter input:focus {
  border-color: var(--ku-green) !important;
  outline: none !important;
  box-shadow: var(--ku-ring) !important;
}
div.dataTables_length select {
  border: 1.5px solid var(--ku-border) !important;
  border-radius: 6px !important;
  padding: .25rem .5rem !important;
  font-family: inherit !important;
}
.dataTables_paginate .paginate_button {
  border-radius: 6px !important;
  border: 1.5px solid transparent !important;
  font-size: .82rem !important;
  margin: 0 1px !important;
  padding: .25rem .6rem !important;
}
.dataTables_paginate .paginate_button.current,
.dataTables_paginate .paginate_button.current:hover {
  background: var(--ku-green) !important;
  color: #fff !important;
  border-color: var(--ku-green) !important;
}
.dataTables_paginate .paginate_button:hover {
  background: var(--ku-light) !important;
  color: var(--ku-green) !important;
  border-color: var(--ku-border) !important;
}

/* ================================================================
   MODAL HEADER (used inside Bootstrap modals)
   ================================================================ */
.ku-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 1.2rem;
  border-bottom: 1.5px solid var(--ku-border);
  font-weight: 700;
  font-size: .92rem;
  color: var(--ku-dark);
  background: linear-gradient(135deg, #f4faf8 0%, #eef8f5 100%);
  gap: .5rem;
}
.ku-modal-header i { color: var(--ku-green); }

.close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  background: transparent;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  color: var(--ku-muted);
  font-size: 1.1rem;
  transition: background .12s, color .12s;
  flex-shrink: 0;
}
.close-btn:hover { background: #f0e8e8; color: #dc2626; }

/* ================================================================
   FILTER BAR
   ================================================================ */
.filter-bar {
  display: flex;
  align-items: flex-end;
  gap: .75rem;
  flex-wrap: wrap;
  background: #fff;
  border: 1.5px solid var(--ku-border);
  border-radius: var(--ku-radius-card);
  padding: 1rem 1.2rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--ku-shadow-card);
}

/* ================================================================
   BTN-SM-KU COLOR VARIANTS
   ================================================================ */
.btn-sm-ku.info {
  background: #dbeafe;
  color: #1e40af;
  border: none;
}
.btn-sm-ku.info:hover { background: #bfdbfe; }

.btn-sm-ku.danger {
  background: #fee2e2;
  color: #dc2626;
  border: none;
}
.btn-sm-ku.danger:hover { background: #fca5a5; }

.btn-sm-ku.primary {
  background: var(--ku-gradient);
  color: #fff;
  border: none;
}
.btn-sm-ku.primary:hover { background: var(--ku-gradient-hover); }

.btn-sm-ku.success {
  background: #d1fae5;
  color: #065f46;
  border: none;
}
.btn-sm-ku.success:hover { background: #a7f3d0; }

/* ================================================================
   UTILITIES / OVERRIDES
   ================================================================ */
.text-ku       { color: var(--ku-green); }
.text-muted    { color: var(--ku-muted) !important; }
.fw-700        { font-weight: 700; }

/* Bootstrap container max-width override for public pages */
.container { max-width: 1200px; }

/* ================================================================
   TOUCH TARGETS — minimum 44 × 44 px (WCAG 2.5.5)
   ================================================================ */
.btn-ku         { min-height: 44px; }
.btn-ku-outline { min-height: 44px; }
.ku-input,
.ku-select      { min-height: 44px; }
.admin-sidebar .sidebar-nav a { min-height: 44px; }

/* ================================================================
   FOCUS STATES — visible keyboard-focus ring (WCAG 2.4.7)
   Only shows for keyboard nav (:focus-visible), not mouse clicks.
   ================================================================ */
.btn-ku:focus-visible,
.btn-ku-outline:focus-visible,
.btn-sm-ku:focus-visible,
.ku-radio-card:focus-visible,
.ku-check:focus-within,
.admin-sidebar .sidebar-nav a:focus-visible,
.close-btn:focus-visible,
.ku-footer-links-list li a:focus-visible,
.ku-footer-top-btn:focus-visible {
  outline: none;
  box-shadow: var(--ku-ring);
}
a:focus-visible { outline: 2px solid var(--ku-green); outline-offset: 2px; }

/* ================================================================
   VISITOR COUNTER (footer — public pages)
   ================================================================ */
.ku-footer-visitors {
  background: rgba(0,0,0,.18);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: .7rem 0;
}
.ku-footer-visitors-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: .8rem;
  color: rgba(255,255,255,.55);
}
.ku-footer-visitors-inner > i { color: #3db382; }
.ku-visitor-chip strong { color: #fff; font-weight: 800; }
.ku-visitor-sep { opacity: .4; margin: 0 .1rem; }
@media (max-width: 560px) {
  .ku-footer-visitors-inner { font-size: .76rem; gap: .4rem; }
}

/* ================================================================
   REDUCED MOTION — respect user preference
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ================================================================
   ADMIN SIDEBAR — slide-in overlay on mobile
   ================================================================ */
.admin-sidebar {
  transition: transform .28s cubic-bezier(.4,0,.2,1),
              box-shadow .28s cubic-bezier(.4,0,.2,1);
}
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 999;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  animation: fadeIn .2s ease;
}
.sidebar-overlay.is-visible { display: block; }

@keyframes fadeIn { from { opacity: 0 } to { opacity: 1 } }

/* Close button inside sidebar — hidden on desktop */
.sidebar-close-btn {
  display: none;
  background: rgba(255,255,255,.08);
  border: none;
  color: rgba(255,255,255,.6);
  width: 30px; height: 30px;
  border-radius: 6px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: .95rem;
  margin-left: auto;
  flex-shrink: 0;
  transition: background .12s;
}
.sidebar-close-btn:hover { background: rgba(255,255,255,.18); }

/* Mobile topbar — hidden on desktop */
.admin-mobile-topbar {
  display: none;
  align-items: center;
  gap: .65rem;
  background: #fff;
  border-bottom: 1.5px solid var(--ku-border);
  padding: 0 1rem;
  height: 52px;
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: 0 1px 8px rgba(0,107,84,.06);
  margin: 0 -1rem 1.5rem;
}
.admin-hamburger {
  background: none;
  border: none;
  color: var(--ku-dark);
  font-size: 1.35rem;
  cursor: pointer;
  padding: .3rem .35rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  min-width: 40px;
  justify-content: center;
  transition: background .12s;
}
.admin-hamburger:hover { background: var(--ku-light); }
.admin-mobile-brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .88rem;
  font-weight: 700;
  color: var(--ku-dark);
}

/* ================================================================
   EMAIL COMPOSE — 2-column layout (admin/email.php)
   ================================================================ */
.email-compose-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 1.25rem;
  align-items: start;
}
.email-filter-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 560px) {
  .email-filter-grid { grid-template-columns: 1fr; }
}

/* ================================================================
   RESPONSIVE — 992 px breakpoint (tablet / mobile)
   ================================================================ */
@media (max-width: 992px) {
  /* Sidebar: slide in as drawer */
  .admin-sidebar {
    transform: translateX(-100%);
    z-index: 1000;
  }
  .admin-sidebar.is-open {
    transform: translateX(0);
    box-shadow: 8px 0 40px rgba(0,0,0,.28);
  }
  .admin-content {
    margin-left: 0;
    padding: 0 1rem 2rem;
  }
  .admin-mobile-topbar { display: flex; }
  .sidebar-close-btn   { display: flex; }

  /* Prevent body scroll when drawer open */
  body.sidebar-open { overflow: hidden; }

  /* Admin topbar (page title row) — wrap more tightly */
  .admin-topbar { margin-bottom: 1.25rem; }
  .admin-page-title { font-size: 1.1rem; }

  /* Cards */
  .admin-card-body { padding: 1rem; }
  .admin-card-header { padding: .75rem 1rem; }

  /* Filter bar — stack on mobile */
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: .6rem;
  }
  .filter-bar .ku-input,
  .filter-bar .ku-select,
  .filter-bar .btn-ku { width: 100%; justify-content: center; }

  /* Tables: horizontal scroll */
  .table-responsive-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  /* Stat cards */
  .stat-card { padding: 1rem; }
  .stat-value { font-size: 1.3rem; }
}

/* ================================================================
   RESPONSIVE — 768 px breakpoint (small tablet / large phone)
   ================================================================ */
@media (max-width: 768px) {
  /* Public page header */
  .ku-header { padding: 1.5rem 0 2rem; }
  .ku-header h1 { font-size: 1.45rem; }

  /* Public container */
  .container { padding-left: 1rem; padding-right: 1rem; }

  /* Cards on public pages */
  .ku-card-body   { padding: 1rem 1rem; }
  .ku-card-header { padding: .8rem 1rem; }

  /* Radio group: 2 columns */
  .ku-radio-group { grid-template-columns: repeat(2, 1fr); }
  .ku-radio-card .icon { font-size: 1.6rem; }

  /* Email compose — collapse fixed-width side column, was forcing overflow */
  .email-compose-grid { grid-template-columns: 1fr; }
}

/* ================================================================
   RESPONSIVE — 480 px breakpoint (phone)
   ================================================================ */
@media (max-width: 480px) {
  /* Header — full university name was being cut off with "..." on narrow
     phones; let it wrap to 2 lines instead of truncating official org name */
  .ku-org-text .main {
    font-size: .82rem;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    line-height: 1.3;
  }
  .ku-logo-row { gap: .5rem; align-items: flex-start; }

  /* Radio cards: shrink further */
  .ku-radio-group { gap: .45rem; }
  .ku-radio-card  { padding: .75rem .5rem; }
  .ku-radio-card .label { font-size: .78rem; }

  /* Form */
  .ku-input,
  .ku-select { font-size: 1rem; } /* prevent iOS zoom on focus */

  /* Admin mobile content */
  .admin-content { padding: 0 .75rem 1.5rem; }
  .admin-mobile-topbar { margin: 0 -.75rem 1.25rem; }

  /* Modals full-width on phone */
  .modal-dialog { margin: .5rem; }

  /* Buttons full-width on phone when needed */
  .btn-ku.btn-mobile-full,
  .btn-ku-outline.btn-mobile-full { width: 100%; justify-content: center; }
}

/* ================================================================
   SAFE AREA (notch / home indicator on iOS)
   ================================================================ */
@supports (padding: env(safe-area-inset-bottom)) {
  .ku-footer-bottom {
    padding-bottom: calc(.85rem + env(safe-area-inset-bottom));
  }
  .admin-mobile-topbar {
    padding-left:  calc(1rem + env(safe-area-inset-left));
    padding-right: calc(1rem + env(safe-area-inset-right));
  }
}

/* ================================================================
   PUBLIC FOOTER
   ================================================================ */
.ku-footer {
  background: #002d22;
  color: rgba(255,255,255,.8);
  margin-top: 4rem;
  font-size: .88rem;
}

/* ── Green accent strip at top ── */
.ku-footer-accent {
  height: 4px;
  background: linear-gradient(90deg, #006B54 0%, #3db382 40%, #006B54 100%);
}

/* ── Main body ── */
.ku-footer-body { padding: 3rem 0 2.5rem; }

/* ── 3-column grid ── */
.ku-footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 900px) {
  .ku-footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .ku-footer-brand-col { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .ku-footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
}

/* ── Brand column ── */
.ku-footer-logo {
  height: 56px;
  width: 56px;
  object-fit: contain;
  margin-bottom: .85rem;
  background: #fff;
  border-radius: 50%;
  padding: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
}
.ku-footer-org-name {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: .25rem;
}
.ku-footer-org-sub {
  font-size: .8rem;
  color: rgba(255,255,255,.45);
  margin-bottom: 1rem;
  font-weight: 400;
  letter-spacing: .01em;
}
.ku-footer-address {
  font-size: .8rem;
  line-height: 1.85;
  color: rgba(255,255,255,.45);
  font-style: normal;
  margin: 0;
  border-left: 2px solid rgba(255,255,255,.1);
  padding-left: .75rem;
}

/* ── Column title ── */
.ku-footer-col-title {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #3db382;
  margin-bottom: 1rem;
  margin-top: 0;
}

/* ── Contact list ── */
.ku-footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .65rem;
}
.ku-footer-contact-list li {
  display: flex;
  align-items: center;
  gap: .65rem;
  color: rgba(255,255,255,.7);
  line-height: 1.4;
}
.ku-footer-contact-list li a {
  color: rgba(255,255,255,.7);
  text-decoration: none;
  transition: color .15s;
}
.ku-footer-contact-list li a:hover { color: #fff; text-decoration: underline; }
.kf-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(255,255,255,.08);
  color: #3db382;
  font-size: .8rem;
  flex-shrink: 0;
  border: 1px solid rgba(255,255,255,.06);
}

/* ── Links list ── */
.ku-footer-links-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
.ku-footer-links-list li a {
  display: flex;
  align-items: center;
  gap: .4rem;
  color: rgba(255,255,255,.65);
  text-decoration: none;
  padding: .35rem 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  transition: color .15s, gap .15s;
}
.ku-footer-links-list li:last-child a { border-bottom: none; }
.ku-footer-links-list li a:hover { color: #fff; gap: .6rem; }
.kf-link-arrow {
  font-size: .65rem;
  color: #3db382;
  flex-shrink: 0;
  transition: transform .15s;
}
.ku-footer-links-list li a:hover .kf-link-arrow { transform: translateX(2px); }

/* ── Bottom bar ── */
.ku-footer-bottom {
  background: rgba(0,0,0,.35);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: .85rem 0;
}
.ku-footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .75rem;
}
.ku-footer-copyright {
  font-size: .78rem;
  color: rgba(255,255,255,.38);
}
.ku-footer-note { color: rgba(255,255,255,.28); }
.ku-footer-top-btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .78rem;
  color: rgba(255,255,255,.4);
  text-decoration: none;
  padding: .35rem .75rem;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  transition: color .15s, border-color .15s, background .15s;
}
.ku-footer-top-btn:hover {
  color: #fff;
  border-color: rgba(255,255,255,.3);
  background: rgba(255,255,255,.06);
}
.ku-footer-top-btn i { font-size: .8rem; }

/* Admin mini-footer */
.ku-admin-footer {
  margin-top: 2.5rem;
  padding: .8rem 1.5rem;
  border-top: 1px solid var(--ku-border);
  background: #f9fcfb;
  font-size: .78rem;
  color: var(--ku-muted);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.ku-admin-footer a {
  color: var(--ku-muted);
  text-decoration: none;
}
.ku-admin-footer a:hover { color: var(--ku-green); }