/* ============================================================
   TRANG CHỦ — chỉ dùng biến từ tokens.css
   ============================================================ */

/* ---------- HERO ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-7) 0 var(--space-6);
}
.hero__eyebrow {
  display: inline-block;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  font-size: var(--text-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 4px var(--space-3);
  border-radius: var(--radius-full);
}
.hero__title {
  font-family: var(--font-family-display);
  font-size: var(--text-display);
  line-height: var(--lh-display);
  margin: var(--space-3) 0;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.hero__title-accent {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__subtitle {
  color: var(--color-text-muted);
  font-size: var(--text-body-lg);
  max-width: 560px;
  margin: 0 0 var(--space-4);
}
.hero__actions { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-bottom: var(--space-4); }
.hero__trust {
  display: flex; gap: var(--space-4); flex-wrap: wrap;
  font-size: var(--text-body-sm);
}
.hero__trust a {
  color: var(--color-text-muted); font-weight: 600;
  transition: color var(--duration-fast) var(--ease-standard);
}
.hero__trust a:hover { color: var(--color-primary); text-decoration: none; }

.hero__signature {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  text-decoration: none;
  transition: transform var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard), border-color var(--duration-base) var(--ease-standard);
}
.hero__signature:hover {
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: var(--shadow-3);
  border-color: var(--color-primary);
}
.hero__hanzi-writer { width: 200px; height: 200px; max-width: 100%; }
.hero__hanzi-writer svg { width: 100%; height: 100%; }
.hero__signature-caption {
  margin-top: var(--space-3); font-size: var(--text-body-sm); color: var(--color-text-muted); text-align: center;
}
.hero__signature-today {
  margin-top: var(--space-1); font-size: var(--text-body-sm); font-weight: 600; color: var(--color-text); text-align: center;
}
.hero__signature-cta {
  margin-top: var(--space-2); font-size: var(--text-body-sm); font-weight: 700; color: var(--color-accent);
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: var(--space-5); }
  .hero__subtitle { margin-inline: auto; }
  .hero__actions, .hero__trust { justify-content: center; }
  .hero__signature { order: -1; max-width: 260px; margin: 0 auto var(--space-3); }
}

/* ---------- TIẾP TỤC HỌC ---------- */
.continue-card {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-4);
  margin: 0 0 var(--space-5);
  box-shadow: var(--shadow-1);
}
.continue-card__label { font-size: var(--text-caption); font-weight: 700; color: var(--color-accent); text-transform: uppercase; letter-spacing: .04em; }
.continue-card__title { font-weight: 700; font-size: var(--text-h4); margin: 2px 0 var(--space-2); }
.continue-card__progress { max-width: 280px; margin-bottom: var(--space-1); }
.continue-card__meta { font-size: var(--text-body-sm); color: var(--color-text-muted); }
@media (max-width: 600px) { .continue-card { flex-direction: column; align-items: stretch; text-align: center; } }

/* ---------- HÔM NAY BẠN HỌC GÌ? ---------- */
.today-plan {
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin: var(--space-4) 0 var(--space-5);
  color: var(--color-text-on-primary);
  box-shadow: var(--shadow-3);
}
.today-plan--guest { background: var(--color-surface-alt); color: var(--color-text); border: 1px solid var(--color-border); box-shadow: var(--shadow-1); }
.today-plan__eyebrow { font-size: var(--text-caption); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; opacity: .85; margin-bottom: 4px; }
.today-plan__title { font-family: var(--font-family-display); font-size: var(--text-h3); margin-bottom: var(--space-3); }
.today-plan__desc { opacity: .85; margin-bottom: var(--space-3); font-size: var(--text-body-sm); }
.today-plan__list { list-style: none; margin: 0 0 var(--space-4); padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-2); }
.today-plan__item a {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.14);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  color: inherit; font-size: var(--text-body-sm); font-weight: 600;
  transition: background var(--duration-fast) var(--ease-standard);
}
.today-plan__item a:hover { background: rgba(255,255,255,0.24); text-decoration: none; }
.today-plan .btn-primary { background: #fff; color: var(--color-primary); }
.today-plan .btn-primary:hover { background: rgba(255,255,255,0.9); }

/* ---------- KHÁM PHÁ NHANH — 7 mục đúng menu chính (Khu vực 4) ---------- */
.quick-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-4);
  margin-bottom: var(--space-5);
}
.quick-nav__card {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px;
  padding: var(--space-3) var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard);
}
.quick-nav__card:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); border-color: var(--color-primary); text-decoration: none; }
.quick-nav__icon { font-size: 1.6rem; }
.quick-nav__title { font-weight: 700; color: var(--color-text); font-size: var(--text-body-sm); }
.quick-nav__desc { color: var(--color-text-muted); font-size: var(--text-caption); }

/* ---------- BANNER TOUR TỰ CHẠY ---------- */
.tour-banner { position: relative; height: 180px; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-3); }
.tour-banner__slides { position: relative; width: 100%; height: 100%; }
.tour-banner__slide {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center;
  padding: var(--space-4) var(--space-5); color: #fff; text-decoration: none;
  opacity: 0; transition: opacity 0.6s ease; pointer-events: none;
}
.tour-banner__slide.is-active { opacity: 1; pointer-events: auto; }
.tour-banner__badge {
  display: inline-block; align-self: flex-start; background: rgba(255,255,255,0.22);
  font-size: var(--text-caption); font-weight: 700; padding: 3px var(--space-2);
  border-radius: var(--radius-full); margin-bottom: var(--space-2);
}
.tour-banner__title { font-family: var(--font-family-display); font-size: var(--text-h3); font-weight: 800; max-width: 70%; line-height: 1.25; }
.tour-banner__meta { font-size: var(--text-body-sm); opacity: 0.9; margin-top: 2px; }
.tour-banner__price { font-family: var(--font-family-mono); font-weight: 700; font-size: var(--text-h4); margin-top: var(--space-2); }
.tour-banner__cta { font-size: var(--text-body-sm); font-weight: 700; text-decoration: underline; margin-top: var(--space-1); }
.tour-banner__dots { position: absolute; bottom: var(--space-2); right: var(--space-3); display: flex; gap: 6px; }
.tour-banner__dot { width: 8px; height: 8px; border-radius: 50%; border: none; background: rgba(255,255,255,0.45); cursor: pointer; padding: 0; }
.tour-banner__dot.is-active { background: #fff; }
@media (max-width: 640px) { .tour-banner { height: 220px; } .tour-banner__title { max-width: 100%; font-size: var(--text-h4); } }

/* ---------- KHÁM PHÁ TRUNG QUỐC ---------- */
.destination-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: var(--space-3); }
.destination-card {
  display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center;
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-2);
  transition: transform var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard), border-color var(--duration-base) var(--ease-standard);
}
.destination-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-3); border-color: var(--color-primary); text-decoration: none; }
.destination-card__icon { font-size: 2rem; }
.destination-card__name { font-weight: 700; color: var(--color-text); font-size: var(--text-body-sm); }

/* ---------- SECTION HEAD (dùng chung) ---------- */
.module-section { margin-top: var(--space-7); margin-bottom: var(--space-7); }
.module-section__head {
  display: flex; justify-content: space-between; align-items: flex-end; gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.module-section__head h2 { font-size: var(--text-h2); margin: 0; }
.module-section__eyebrow { color: var(--color-accent); font-weight: 700; font-size: var(--text-body-sm); margin-bottom: 4px; }
.module-section__sub { color: var(--color-text-muted); font-size: var(--text-body-sm); margin: 4px 0 0; }
.module-section__head > a { font-size: var(--font-size-sm); font-weight: 600; white-space: nowrap; }

/* ---------- KHÓA HỌC NỔI BẬT ---------- */
.course-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: var(--space-3); }
.course-card {
  display: block; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-4); box-shadow: var(--shadow-1);
  transition: transform var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard);
}
.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-3); text-decoration: none; }
.course-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-3); }
.course-card__icon { font-size: 1.5rem; }
.course-card__title { font-weight: 700; color: var(--color-text); margin-bottom: var(--space-1); font-family: var(--font-family-display); }
.course-card__desc { color: var(--color-text-muted); font-size: var(--font-size-sm); margin-bottom: var(--space-2); }
.course-card__meta { color: var(--color-text-faint); font-size: var(--text-caption); font-family: var(--font-family-mono); }

/* ---------- HSK TRACK (chuỗi cấp độ có thứ tự) ---------- */
.hsk-track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-2);
  position: relative;
}
.hsk-track::before {
  content: "";
  position: absolute; top: 20px; left: 6%; right: 6%; height: 2px;
  background: var(--color-border); z-index: 0;
}
.hsk-step {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px;
  padding: var(--space-2);
}
.hsk-step__num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-surface); border: 2px solid var(--color-primary);
  color: var(--color-primary); font-family: var(--font-family-mono); font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--duration-base) var(--ease-standard);
}
.hsk-step:hover .hsk-step__num { background: var(--color-primary); color: var(--color-text-on-primary); }
.hsk-step__title { font-size: var(--text-body-sm); font-weight: 600; color: var(--color-text); }
.hsk-step__meta { font-size: var(--text-caption); color: var(--color-text-faint); }
@media (max-width: 760px) {
  .hsk-track { grid-template-columns: repeat(3, 1fr); }
  .hsk-track::before { display: none; }
}

/* ---------- CHUYÊN ĐỀ ---------- */
.topic-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-3); }
.topic-card {
  display: block; border-radius: var(--radius-lg); padding: var(--space-5);
  border: 1px solid var(--color-border); box-shadow: var(--shadow-1);
  transition: transform var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard);
}
.topic-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-3); text-decoration: none; }
.topic-card__icon { font-size: 1.8rem; margin-bottom: var(--space-2); }
.topic-card__title { font-family: var(--font-family-display); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-1); font-size: var(--text-h4); }
.topic-card__desc { color: var(--color-text-muted); font-size: var(--font-size-sm); }
.topic-card--giaotiep { background: var(--curr-giaotiep-bg); }
.topic-card--congxuong { background: var(--curr-congxuong-bg); }

/* ---------- GAME GRID ---------- */
.game-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-3); }
.game-card {
  position: relative; display: block; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-4); box-shadow: var(--shadow-1);
  transition: transform var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard);
}
.game-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-3); text-decoration: none; }
.game-card--soon { opacity: 0.75; }
.game-card__icon { font-size: 1.8rem; margin-bottom: var(--space-2); }
.game-card__title { font-family: var(--font-family-display); font-weight: 700; margin-bottom: var(--space-1); font-size: var(--text-h4); }
.game-card__desc { color: var(--color-text-muted); font-size: var(--font-size-sm); margin-bottom: var(--space-2); }

/* ---------- HỌC MỖI NGÀY (daily grid) ---------- */
.daily-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-3); }
.daily-card {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-4);
  box-shadow: var(--shadow-1);
  transition: transform var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard);
}
.daily-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-3); text-decoration: none; }
.daily-card--accent { background: var(--color-accent-soft); border-color: transparent; }
.daily-card__icon { font-size: 1.8rem; }
.daily-card__icon--hanzi { font-family: var(--font-family-display); font-size: 2.4rem; color: var(--color-primary); line-height: 1; }
.daily-card__label { font-size: var(--text-caption); font-weight: 700; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .03em; }
.daily-card__value { font-weight: 600; color: var(--color-text); font-size: var(--text-body-sm); }

/* ---------- THI THỬ BANNER ---------- */
.exam-banner {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); padding: var(--space-5);
  box-shadow: var(--shadow-1);
}
.exam-banner h2 { margin: var(--space-2) 0 var(--space-1); font-size: var(--text-h2); }
.exam-banner p { color: var(--color-text-muted); margin: 0; max-width: 480px; }
@media (max-width: 700px) { .exam-banner { flex-direction: column; align-items: stretch; text-align: center; } }

/* ---------- ĐỘI NGŨ GIÁO VIÊN ---------- */
.teacher-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: var(--space-3); }
.teacher-card { text-align: center; padding: var(--space-4); border-radius: var(--radius-lg); background: var(--color-surface); border: 1px solid var(--color-border); }
.teacher-card__avatar {
  width: 56px; height: 56px; border-radius: 50%; margin: 0 auto var(--space-2);
  background: var(--gradient-primary); color: #fff; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-family-display); font-weight: 700; font-size: 1.2rem;
}
.teacher-card__name { font-weight: 700; font-family: var(--font-family-display); }
.teacher-card__role { color: var(--color-text-muted); font-size: var(--text-body-sm); }

/* ---------- ĐÁNH GIÁ HỌC VIÊN ---------- */
.review-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-3); }
.review-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4); }
.review-card__stars { color: var(--color-accent); letter-spacing: 2px; margin-bottom: var(--space-2); }
.review-card__text { color: var(--color-text); margin: 0 0 var(--space-2); }
.review-card__author { color: var(--color-text-muted); font-size: var(--text-body-sm); font-weight: 600; }

/* ---------- TIN TỨC ---------- */
.news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-3); }
.news-card {
  display: block; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 0; overflow: hidden;
  transition: transform var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard);
}
.news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); text-decoration: none; }
.news-card__img {
  height: 84px; display: flex; align-items: center; justify-content: center; font-size: 2rem;
  background: var(--color-surface-alt); border-bottom: 1px solid var(--color-border);
}
.news-card__body { padding: var(--space-3); }
.news-card__tag { display: inline-block; font-size: var(--text-caption); font-weight: 700; color: var(--color-secondary); background: var(--color-secondary-soft); padding: 2px var(--space-2); border-radius: var(--radius-full); margin-bottom: var(--space-2); }
.news-card__title { font-weight: 600; color: var(--color-text); line-height: 1.4; margin-bottom: 4px; }
.news-card__excerpt { font-size: var(--text-caption); color: var(--color-text-muted); margin: 0; line-height: 1.5; }

/* ---------- CTA ---------- */
.cta-banner {
  background: var(--gradient-hero);
  color: var(--color-text-on-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-3);
}
.cta-banner h2 { margin: 0 0 var(--space-2); font-size: var(--text-h2); }
.cta-banner p { opacity: .92; margin-bottom: var(--space-3); }
.cta-banner .btn-primary { background: var(--color-text-on-primary); color: var(--color-primary); }
.cta-banner .btn-primary:hover { background: var(--color-surface-alt); }