/* Theme Khảo thí — VUS-inspired navy + red */
:root {
  --kt-navy: #0b2a5b;
  --kt-navy-dark: #071e42;
  --kt-red: #e11d2e;
  --kt-red-dark: #b91524;
  --kt-gold: #ffb800;
  --kt-bg: #f5f7fb;
  --kt-bg-alt: #eef2f8;
  --kt-ink: #16202c;
  --kt-muted: #5b6b7a;
  --kt-line: #e3eaf0;
  --kt-white: #fff;
  --kt-radius: 14px;
  --kt-radius-sm: 10px;
  --kt-shadow: 0 10px 40px rgba(7, 30, 66, 0.08);
  --kt-container: 1180px;
  --kt-font: "Be Vietnam Pro", system-ui, -apple-system, sans-serif;
  --kt-section-y: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.kt-body {
  margin: 0;
  font-family: var(--kt-font);
  font-size: 15px;
  line-height: 1.65;
  color: var(--kt-ink);
  background: var(--kt-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--kt-navy); text-decoration: none; }
a:hover { color: var(--kt-red); }
.kt-main { min-height: 50vh; }
.kt-container { width: min(100% - 32px, var(--kt-container)); margin-inline: auto; }
.kt-icon { flex-shrink: 0; vertical-align: middle; }

/* Grid */
.kt-grid { display: grid; gap: 24px; }
.kt-grid--2 { grid-template-columns: repeat(2, 1fr); }
.kt-grid--3 { grid-template-columns: repeat(3, 1fr); }
.kt-grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 991px) {
  .kt-grid--3, .kt-grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .kt-grid--2, .kt-grid--3, .kt-grid--4 { grid-template-columns: 1fr; }
  :root { --kt-section-y: 48px; }
}

/* Typography */
.kt-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--kt-red);
  margin-bottom: 8px;
}
.kt-section-title { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; margin: 0 0 12px; line-height: 1.2; color: var(--kt-navy-dark); }
.kt-section-sub { color: var(--kt-muted); margin: 0; max-width: 640px; }
.kt-section-head { margin-bottom: 32px; }
.kt-lead { font-size: 1.05rem; color: var(--kt-muted); }

/* Buttons */
.kt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--kt-radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.kt-btn:hover { text-decoration: none; }
.kt-btn--red { background: var(--kt-red); color: var(--kt-white); }
.kt-btn--red:hover { background: var(--kt-red-dark); color: var(--kt-white); }
.kt-btn--navy { background: var(--kt-navy); color: var(--kt-white); }
.kt-btn--navy:hover { background: var(--kt-navy-dark); color: var(--kt-white); }
.kt-btn--outline { background: transparent; border-color: var(--kt-line); color: var(--kt-navy); }
.kt-btn--outline:hover { border-color: var(--kt-navy); color: var(--kt-navy-dark); }
.kt-btn--ghost { background: transparent; border-color: transparent; color: var(--kt-muted); }
.kt-btn--ghost:hover { color: var(--kt-navy); background: var(--kt-bg); }
.kt-btn--white { background: var(--kt-white); color: var(--kt-navy-dark); }
.kt-btn--sm { padding: 8px 16px; font-size: 13px; }
.kt-btn--lg { padding: 14px 28px; font-size: 15px; }
.kt-btn--block { width: 100%; }
.kt-link { font-weight: 600; color: var(--kt-red); display: inline-flex; align-items: center; gap: 6px; }

/* Topbar */
.kt-topbar {
  background: var(--kt-navy-dark);
  color: rgba(255,255,255,0.85);
  font-size: 13px;
}
.kt-topbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  min-height: 40px;
}
.kt-topbar a { color: rgba(255,255,255,0.9); }
.kt-topbar a:hover { color: var(--kt-gold); }
.kt-topbar__left, .kt-topbar__right { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }

/* Header */
.kt-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--kt-line);
  transition: box-shadow 0.2s;
}
.kt-header.is-scrolled { box-shadow: var(--kt-shadow); }
.kt-header__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 76px;
}
.kt-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  max-width: 300px;
  color: var(--kt-ink);
  font-weight: 800;
  font-size: 0.92rem;
  line-height: 1.25;
}
.kt-brand:hover { color: var(--kt-navy); }
.kt-brand__logo {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--kt-navy), var(--kt-red));
  color: var(--kt-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
}
.kt-brand__logo img { width: 100%; height: 100%; object-fit: contain; border-radius: 10px; }

.kt-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 20px;
  margin-left: auto;
}
.kt-nav > a, .kt-nav__drop > button {
  font-weight: 600;
  font-size: 14px;
  color: var(--kt-muted);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}
.kt-nav > a:hover, .kt-nav > a.active { color: var(--kt-navy); border-bottom-color: var(--kt-red); }
.kt-nav > a.kt-nav--cta { color: var(--kt-red); }
.kt-nav__drop { position: relative; }
.kt-nav__panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background: var(--kt-white);
  border: 1px solid var(--kt-line);
  border-radius: var(--kt-radius-sm);
  box-shadow: var(--kt-shadow);
  padding: 12px;
  z-index: 50;
}
.kt-nav__drop.is-open .kt-nav__panel { display: block; }
.kt-nav__panel a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--kt-ink);
  font-size: 14px;
}
.kt-nav__panel a:hover { background: var(--kt-bg); color: var(--kt-red); }

.kt-header__cta { flex-shrink: 0; }
.kt-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--kt-line);
  border-radius: var(--kt-radius-sm);
  background: var(--kt-white);
  margin-left: auto;
  cursor: pointer;
}
.kt-nav-toggle span { height: 2px; background: var(--kt-ink); border-radius: 2px; }

@media (max-width: 991px) {
  .kt-nav-toggle { display: flex; }
  .kt-header__cta { display: none; }
  .kt-nav {
    position: fixed;
    inset: 76px 0 auto 0;
    background: var(--kt-white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    border-bottom: 1px solid var(--kt-line);
    box-shadow: var(--kt-shadow);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: 0.25s;
    margin-left: 0;
    max-height: calc(100vh - 76px);
    overflow-y: auto;
  }
  .kt-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .kt-nav > a { padding: 12px 0; border-bottom: 1px solid var(--kt-line); }
  .kt-nav__panel { position: static; box-shadow: none; border: none; padding: 0 0 0 12px; display: block; }
  body.kt-nav-open { overflow: hidden; }
}

/* Hero */
.kt-hero {
  background: linear-gradient(135deg, var(--kt-navy-dark) 0%, var(--kt-navy) 55%, #123d7a 100%);
  color: var(--kt-white);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}
.kt-hero::after {
  content: "";
  position: absolute;
  right: -15%;
  top: -40%;
  width: 50%;
  height: 180%;
  background: radial-gradient(circle, rgba(225,29,46,0.15) 0%, transparent 65%);
  pointer-events: none;
}
.kt-hero__grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; position: relative; z-index: 1; }
@media (max-width: 991px) { .kt-hero__grid { grid-template-columns: 1fr; } }
.kt-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 16px;
  border: 1px solid rgba(255,255,255,0.15);
}
.kt-hero__title { font-size: clamp(1.85rem, 4vw, 2.75rem); font-weight: 800; line-height: 1.12; margin: 0 0 16px; }
.kt-hero__sub { font-size: 1.05rem; opacity: 0.92; margin: 0 0 24px; max-width: 520px; }
.kt-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.kt-hero-card {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--kt-radius);
  padding: 24px;
  backdrop-filter: blur(8px);
}
.kt-hero-card h3 { margin: 0 0 16px; font-size: 1.1rem; }
.kt-form-row { margin-bottom: 15px; }
.kt-form-row:last-child { margin-bottom: 0; }
.kt-form-row label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 6px; opacity: 0.9; }
.kt-form-field label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 6px; opacity: 0.9; }
.kt-form-block { margin-top: 15px; }
.kt-form-block__label { display: block; font-size: 12px; font-weight: 700; margin-bottom: 6px; color: var(--kt-navy-dark); }
.kt-form-grid { display: grid; gap: 15px; margin-bottom: 15px; }
.kt-form-grid .kt-form-field,
.kt-form-grid .kt-form-row { margin-bottom: 0; }
.kt-form-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kt-form-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 768px) {
  .kt-form-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .kt-form-grid--2,
  .kt-form-grid--3 { grid-template-columns: 1fr; }
}
.kt-reg-card {
  height: auto;
  transform: none !important;
  transition: none !important;
}
.kt-card.kt-reg-card,
.kt-card.kt-reg-card:hover {
  transform: none !important;
  transition: none !important;
  box-shadow: 0 2px 12px rgba(7, 30, 66, 0.04);
}
.kt-reg-tabs a:hover {
  color: inherit;
  background: var(--kt-bg);
  border-color: var(--kt-line);
}
.kt-reg-tabs a.active:hover {
  background: var(--kt-navy);
  color: #fff;
  border-color: var(--kt-navy);
}
.kt-reg-card__title { margin: 0 0 12px; font-size: 1.05rem; font-weight: 700; color: var(--kt-navy-dark); }
.kt-reg-grid { gap: 16px; }
.kt-reg-submit { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
select.kt-select:not([multiple]) {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%230B2A5B' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px 20px;
  padding-right: 44px;
}
.kt-input, .kt-select, .kt-textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--kt-line);
  border-radius: var(--kt-radius-sm);
  font-family: inherit;
  font-size: 14px;
  background: var(--kt-white);
  color: var(--kt-ink);
}
.kt-hero .kt-input, .kt-hero .kt-select { border-color: rgba(255,255,255,0.25); }
.kt-textarea { min-height: 84px; resize: vertical; }

/* Stats strip */
.kt-stats {
  background: var(--kt-white);
  border-bottom: 1px solid var(--kt-line);
  padding: 28px 0;
  margin-top: -28px;
  position: relative;
  z-index: 2;
}
.kt-stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 768px) { .kt-stats__grid { grid-template-columns: repeat(2, 1fr); } }
.kt-stat {
  text-align: center;
  padding: 16px;
  border-radius: var(--kt-radius-sm);
  background: var(--kt-bg);
  border: 1px solid var(--kt-line);
}
.kt-stat strong { display: block; font-size: 1.75rem; font-weight: 800; color: var(--kt-navy); line-height: 1.1; }
.kt-stat span { font-size: 13px; color: var(--kt-muted); }

/* Sections */
.kt-section { padding: var(--kt-section-y) 0; }
.kt-section--alt { background: var(--kt-bg); }

/* Cards */
.kt-card {
  background: var(--kt-white);
  border: 1px solid var(--kt-line);
  border-radius: var(--kt-radius);
  padding: 24px;
  box-shadow: 0 2px 12px rgba(7,30,66,0.04);
  height: 100%;
  transition: box-shadow 0.2s;
}
.kt-card:not(.kt-reg-card):hover { box-shadow: var(--kt-shadow); }
.kt-card h3 { margin: 0 0 10px; font-size: 1.05rem; font-weight: 700; color: var(--kt-navy-dark); }
.kt-card p { margin: 0; color: var(--kt-muted); font-size: 14px; }
.kt-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--kt-bg-alt);
  color: var(--kt-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.25rem;
}
.kt-card--red { border-top: 4px solid var(--kt-red); }
.kt-card--navy { border-top: 4px solid var(--kt-navy); }

.kt-exam-card { /* extends .kt-card */ }
.kt-exam-card__head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; margin-bottom: 12px; }
.kt-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--kt-red);
  color: var(--kt-white);
}
.kt-meta { list-style: none; padding: 0; margin: 0 0 16px; font-size: 14px; color: var(--kt-muted); }
.kt-meta li { margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.kt-card__actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* Page hero inner */
.kt-page-hero {
  background: var(--kt-bg);
  padding: 40px 0 32px;
  border-bottom: 1px solid var(--kt-line);
}
.kt-page-hero__title { font-size: clamp(1.65rem, 3vw, 2.25rem); font-weight: 800; margin: 8px 0; color: var(--kt-navy-dark); }
.kt-breadcrumb { font-size: 13px; color: var(--kt-muted); }
.kt-breadcrumb a { color: var(--kt-navy); font-weight: 600; }
.kt-breadcrumb span { margin: 0 6px; opacity: 0.5; }

/* Branch */
.kt-branch-card .kt-branch-card__title { font-weight: 800; color: var(--kt-navy); margin-bottom: 8px; }
.kt-branch-card address { font-style: normal; font-size: 14px; color: var(--kt-muted); margin-bottom: 12px; }

/* Testimonial */
.kt-quote {
  background: var(--kt-white);
  border: 1px solid var(--kt-line);
  border-radius: var(--kt-radius);
  padding: 24px;
  height: 100%;
}
.kt-quote p { font-size: 14px; color: var(--kt-muted); margin: 0 0 16px; }
.kt-quote cite { font-style: normal; font-weight: 700; color: var(--kt-navy); display: block; }
.kt-quote small { color: var(--kt-red); font-weight: 600; }

/* Teacher */
.kt-person { text-align: center; }
.kt-person__img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 12px;
  background: var(--kt-bg-alt);
  border: 3px solid var(--kt-line);
}
.kt-person h4 { margin: 0 0 4px; font-size: 1rem; }
.kt-person p { margin: 0; font-size: 13px; color: var(--kt-muted); }

/* News */
.kt-news-card { padding: 0; overflow: hidden; }
.kt-news-thumb { aspect-ratio: 16/9; background: var(--kt-bg-alt); overflow: hidden; }
.kt-news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.kt-news-body { padding: 16px; }
.kt-news-cate { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--kt-red); }
.kt-news-title { font-size: 1rem; font-weight: 700; margin: 8px 0; line-height: 1.35; }
.kt-news-title a { color: var(--kt-ink); }
.kt-news-title a:hover { color: var(--kt-red); }

/* CTA band */
.kt-cta {
  background: linear-gradient(120deg, var(--kt-navy-dark), var(--kt-navy));
  color: var(--kt-white);
  padding: 56px 0;
  text-align: center;
}
.kt-cta h2 { margin: 0 0 12px; font-size: 1.75rem; font-weight: 800; }
.kt-cta p { opacity: 0.9; margin: 0 0 24px; }

/* FAQ */
.kt-faq__item { border: 1px solid var(--kt-line); border-radius: var(--kt-radius-sm); margin-bottom: 8px; overflow: hidden; background: var(--kt-white); }
.kt-faq__q {
  width: 100%;
  text-align: left;
  padding: 16px 18px;
  border: none;
  background: var(--kt-white);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  font-family: inherit;
  color: var(--kt-ink);
}
.kt-faq__a { display: none; padding: 0 18px 16px; color: var(--kt-muted); font-size: 14px; }
.kt-faq__item.is-open .kt-faq__a { display: block; }
.kt-faq__item.is-open .kt-faq__q { color: var(--kt-navy); }

/* Footer */
.kt-footer {
  background: var(--kt-navy-dark);
  color: rgba(255,255,255,0.75);
  padding: 48px 0 0;
}
.kt-footer__brand { font-weight: 800; font-size: 1.05rem; color: var(--kt-white); margin-bottom: 12px; }
.kt-footer__lead { font-size: 14px; line-height: 1.65; margin: 0; }
.kt-footer__title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.45);
  margin: 0 0 16px;
}
.kt-footer__links { list-style: none; padding: 0; margin: 0; font-size: 14px; }
.kt-footer__links li { margin-bottom: 8px; }
.kt-footer__links a { color: rgba(255,255,255,0.82); }
.kt-footer__links a:hover { color: var(--kt-gold); }
.kt-footer__contact { list-style: none; padding: 0; margin: 0; font-size: 14px; }
.kt-footer__contact li { margin-bottom: 10px; display: flex; gap: 10px; align-items: flex-start; }
.kt-footer__contact a { color: var(--kt-white); }
.kt-footer__bottom {
  margin-top: 32px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.kt-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 32px; }
@media (max-width: 991px) { .kt-footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .kt-footer__grid { grid-template-columns: 1fr; } }

.kt-empty {
  text-align: center;
  padding: 48px 24px;
  background: var(--kt-bg);
  border-radius: var(--kt-radius);
  color: var(--kt-muted);
}

/* Exam portal content */
.kt-prose { max-width: 720px; }
.kt-prose h1, .kt-prose h2 { color: var(--kt-navy-dark); }
.kt-table-wrap { overflow-x: auto; }
.kt-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.kt-table th, .kt-table td { padding: 12px; border-bottom: 1px solid var(--kt-line); text-align: left; }
.kt-table th { background: var(--kt-bg); font-weight: 700; color: var(--kt-navy); }

/* Aliases (legacy templates) */
.container { width: min(100% - 32px, var(--kt-container)); margin-inline: auto; }
.kt-btn--accent, .kt-btn--primary { background: var(--kt-red); color: var(--kt-white); }
.kt-btn--accent:hover, .kt-btn--primary:hover { background: var(--kt-red-dark); color: var(--kt-white); }
.kt-muted { color: var(--kt-muted); }

/* Khóa học chi tiết (edu layout cũ trên theme khaothi) */
.edu-detail-layout { display: grid; grid-template-columns: 1fr 320px; gap: 28px; }
@media (max-width: 991px) { .edu-detail-layout { grid-template-columns: 1fr; } }
.edu-detail-hero-bar { background: var(--kt-bg); border-bottom: 1px solid var(--kt-line); padding: 16px 0; }
.edu-detail-page .breadcrumb, .edu-detail-hero-bar .breadcrumb { font-size: 13px; color: var(--kt-muted); }
.edu-detail-page .breadcrumb a { color: var(--kt-navy); font-weight: 600; }
.section.edu-detail-page { padding: var(--kt-section-y) 0; }
.edu-detail-main, .edu-detail-sidebar { min-width: 0; }
.kt-news-content img { max-width: 100%; height: auto; border-radius: var(--kt-radius-sm); }
@media (max-width: 991px) {
  .kt-grid[style*="1.4fr"] { grid-template-columns: 1fr !important; }
}

/* Select dropdown (SDW) — storefront */
.sdw-host.sdw { position: relative; width: 100%; }
.sdw-trigger {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  min-height: 44px; padding: 0 14px; border: 1px solid var(--kt-line); border-radius: var(--kt-radius-sm);
  background: var(--kt-white); cursor: pointer; font-family: inherit; text-align: left;
}
.sdw-trigger-content { flex: 1; min-width: 0; }
.sdw-trigger-label { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sdw--open .sdw-trigger { border-color: var(--kt-navy); box-shadow: 0 0 0 3px rgba(11,42,91,.12); }
.sdw-trigger-label { font-size: 14px; color: var(--kt-ink); }
.sdw-trigger-label.sdw--placeholder { color: var(--kt-muted); }
.sdw-arrow {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-right: -6px;
  color: var(--kt-navy);
  opacity: 0.85;
  transition: transform 0.15s ease;
}
.sdw-arrow svg { width: 20px; height: 20px; display: block; }
.sdw--open .sdw-arrow { transform: rotate(180deg); }
.sdw-panel {
  position: fixed; display: none; background: var(--kt-white); border: 1px solid var(--kt-line);
  border-radius: var(--kt-radius-sm); box-shadow: var(--kt-shadow); z-index: 10050; max-height: 280px; overflow: hidden;
}
.sdw-list { max-height: 260px; overflow-y: auto; padding: 6px 0; }
.sdw-option { padding: 10px 14px; cursor: pointer; font-size: 14px; }
.sdw-option:hover { background: var(--kt-bg); }
.sdw-option--active { background: var(--kt-bg-alt); color: var(--kt-navy); font-weight: 600; }
.sdw-option-desc { font-size: 12px; color: var(--kt-muted); margin-top: 2px; }
.sdw-empty { padding: 12px; text-align: center; color: var(--kt-muted); font-size: 13px; }
.kt-form-hint { font-size: 12px; color: var(--kt-muted); margin-top: 6px; }
.kt-reg-tabs { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.kt-reg-tabs a { padding: 10px 18px; border-radius: var(--kt-radius-sm); border: 1px solid var(--kt-line); font-weight: 600; font-size: 14px; }
.kt-reg-tabs a.active { background: var(--kt-navy); color: #fff; border-color: var(--kt-navy); }
.kt-file { font-size: 13px; margin-top: 8px; }

/* Switch */
.kt-switch-row { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; font-weight: 600; }
.kt-switch { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.kt-switch input { opacity: 0; width: 0; height: 0; }
.kt-switch-slider {
  position: absolute; inset: 0; background: #cbd5e1; border-radius: 999px; transition: .2s;
}
.kt-switch-slider:before {
  content: ''; position: absolute; height: 18px; width: 18px; left: 3px; bottom: 3px;
  background: #fff; border-radius: 50%; transition: .2s;
}
.kt-switch input:checked + .kt-switch-slider { background: var(--kt-navy); }
.kt-switch input:checked + .kt-switch-slider:before { transform: translateX(20px); }
.kt-ho-tro-note { margin-top: 10px; }

/* Upload inline */
.kt-upload-host { position: relative; }
.kt-upload-hint { font-size: 11px; color: var(--kt-muted); margin: 8px 0 0; }
.kt-upload-dropzone {
  border: 2px dashed var(--kt-line); border-radius: var(--kt-radius-sm); padding: 16px; text-align: center;
  background: var(--kt-bg);
}
.kt-upload-dropzone.is-drag { border-color: var(--kt-navy); background: var(--kt-bg-alt); }
.kt-upload-dropzone__title { margin: 0 0 8px; font-size: 13px; }
.kt-upload-file-input { position: absolute; width: 0; height: 0; opacity: 0; pointer-events: none; }
.kt-upload-list { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; }
.kt-upload-item {
  display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; padding: 12px;
  border: 1px solid var(--kt-line); border-radius: var(--kt-radius-sm); background: var(--kt-white); align-items: start;
}
.kt-upload-item__name { font-weight: 600; font-size: 13px; word-break: break-word; }
.kt-upload-item__size { font-size: 11px; color: var(--kt-muted); margin-top: 2px; }
.kt-upload-item__meta { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.kt-upload-item__field label { font-size: 11px; font-weight: 600; margin-bottom: 4px; display: block; }
.kt-upload-item__rm {
  border: none; background: var(--kt-bg); width: 28px; height: 28px; border-radius: 6px;
  font-size: 18px; cursor: pointer; color: var(--kt-muted); line-height: 1;
}
.kt-upload-item__rm:hover { color: #b91c1c; background: #fef2f2; }
@media (max-width: 640px) {
  .kt-upload-item__meta { grid-template-columns: 1fr; }
}

.kt-inline-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 10px; }
.kt-file-input-hidden { position: absolute; width: 0; height: 0; opacity: 0; }
.kt-file-label { cursor: pointer; margin: 0; }
.kt-file-info { font-size: 12px; font-weight: 600; color: var(--kt-navy); margin-bottom: 8px; }
.kt-text-warn { color: #b91c1c; }

/* Bank / QR */
.kt-bank-box__title { margin: 0 0 10px; font-size: 1rem; }
.kt-bank-box__amount { font-size: 15px; }
.kt-bank-layout { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 12px; }
.kt-bank-qr__frame { padding: 8px; background: #fff; border: 1px solid var(--kt-line); border-radius: 8px; }
.kt-bank-qr__frame img { width: 180px; height: 180px; object-fit: contain; display: block; }
.kt-bank-qr__caption { font-size: 12px; color: var(--kt-muted); text-align: center; margin-top: 6px; }
.kt-bank-details { flex: 1; min-width: 200px; }
.kt-bank-row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--kt-line); font-size: 13px; }
.kt-bank-row span { color: var(--kt-muted); }
.kt-copy-btn { border: none; background: var(--kt-bg); padding: 2px 8px; border-radius: 6px; font-size: 11px; cursor: pointer; margin-left: 6px; }
.kt-mono { font-family: ui-monospace, monospace; }
.kt-success-stats { list-style: none; padding: 0; margin: 0 0 12px; }
.kt-success-stats li { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--kt-line); font-size: 14px; }
.kt-fail-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; }
.kt-fail-table th, .kt-fail-table td { border: 1px solid var(--kt-line); padding: 8px 10px; text-align: left; }
.kt-fail-table-wrap h4 { margin: 12px 0 6px; font-size: 13px; }

.kt-exam-program-detail__cover img { width: 100%; max-height: 320px; object-fit: cover; border-radius: var(--kt-radius); margin-bottom: 16px; }
.kt-exam-program-detail__thumbs { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.kt-exam-program-detail__thumbs img { width: 88px; height: 88px; object-fit: cover; border-radius: 8px; border: 1px solid var(--kt-line); }
.kt-exam-program-detail__body { line-height: 1.65; margin-bottom: 16px; }

@media print {
  .kt-topbar, .kt-header, .kt-footer, .kt-nav-toggle { display: none !important; }
}