/* =========================================================
   THANH THIẾU NHI - TRẠI HÈ 2026
   Frontend CSS
   ========================================================= */

:root{
  --c-primary: #1aa2a4;
  --c-primary-dark: #117374;
  --c-accent: #f4a93c;
  --c-accent-2: #ffcc4d;
  --c-yellow: #ffdc55;
  --c-coral: #ff6b6b;
  --c-bg: #f4fafb;
  --c-text: #2c3e50;
  --c-muted: #7a8a99;
  --c-border: #e3e9ef;
  --c-white: #ffffff;
  --radius: 14px;
  --shadow: 0 6px 20px rgba(17, 115, 116, .08);
  --shadow-lg: 0 16px 40px rgba(17, 115, 116, .14);
}

*,*:before,*:after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--c-text);
  line-height:1.6;
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--c-primary-dark)}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0 0 12px;color:var(--c-text);font-weight:700;line-height:1.25}
p{margin:0 0 12px}

.container{max-width:1200px;margin:0 auto;padding:0 16px}
.text-center{text-align:center}

/* ============ Topbar ============ */
.topbar{background:var(--c-primary);color:#fff;font-size:13px}
.topbar__inner{display:flex;justify-content:flex-end;align-items:center;height:38px;gap:24px}
.topbar__contact{display:flex;gap:24px;align-items:center}
.topbar__contact a{color:#fff;display:inline-flex;align-items:center;gap:6px}
.topbar__contact a:hover{opacity:.85}

/* ============ Header ============ */
.header{background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.05);position:sticky;top:0;z-index:100}
.header__inner{display:flex;align-items:center;gap:24px;height:72px}
.logo img{height:50px;width:auto}
.nav{flex:1}
.nav ul{display:flex;gap:8px;justify-content:center}
.nav a{
  display:block;padding:10px 14px;border-radius:8px;
  color:var(--c-text);font-weight:500;font-size:15px;
}
.nav a:hover{background:var(--c-bg);color:var(--c-primary)}
.header__right{display:flex;align-items:center;gap:14px}
.search-mini{display:flex;align-items:center;background:var(--c-bg);border-radius:30px;padding:6px 14px;width:240px}
.search-mini input{border:0;background:transparent;outline:none;flex:1;font-family:inherit;font-size:14px;color:var(--c-text)}
.search-mini button{border:0;background:transparent;color:var(--c-muted);cursor:pointer}
.btn--phone{padding:10px 20px;border-radius:30px;display:inline-flex;align-items:center;gap:8px;font-weight:600}
.nav-toggle{display:none;background:transparent;border:0;font-size:22px;color:var(--c-text);cursor:pointer}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:30px;font-weight:600;font-size:15px;
  border:2px solid transparent;cursor:pointer;transition:all .2s;
  text-align:center;line-height:1.2;
}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px)}
.btn--accent{background:var(--c-accent);color:#fff}
.btn--accent:hover{background:#e69a2e;color:#fff}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn--ghost:hover{background:#fff;color:var(--c-primary)}
.btn--outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn--outline:hover{background:var(--c-primary);color:#fff}
.btn--lg{padding:14px 30px;font-size:16px}
.btn--sm{padding:7px 14px;font-size:13px}

/* ============ Hero ============ */
.hero{
  position:relative;padding:60px 0 100px;
  background:linear-gradient(135deg,#cfeef0 0%,#e7f7f7 50%,#d6f3e9 100%);
  overflow:hidden;
}
.hero__decor{position:absolute;width:160px;height:160px;background:rgba(255,255,255,.4);border-radius:50%;filter:blur(40px)}
.hero__decor--left{top:10%;left:-50px}
.hero__decor--right{bottom:5%;right:-50px;background:rgba(255,220,85,.4)}
.hero__inner{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center;position:relative;z-index:2}
.hero__kicker{
  display:inline-block;background:var(--c-accent);color:#fff;
  padding:6px 18px;border-radius:30px;font-weight:700;letter-spacing:1px;
  font-size:14px;margin-bottom:14px;
}
.hero__title h1{
  font-size:120px;line-height:.9;margin:0 0 18px;color:var(--c-primary-dark);
  font-weight:900;letter-spacing:-2px;
  text-shadow:4px 4px 0 var(--c-yellow);
}
.hero__sub{font-size:17px;color:#345;max-width:520px;margin:0 0 24px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap}
.hero__photos{position:relative;height:420px}
.hero__photo{
  position:absolute;border-radius:18px;overflow:hidden;
  box-shadow:0 14px 40px rgba(17,115,116,.25);border:4px solid #fff;
}
.hero__photo img{width:100%;height:100%;object-fit:cover}
.hero__photo--1{top:0;left:0;width:60%;height:55%;transform:rotate(-3deg)}
.hero__photo--2{top:10%;right:0;width:55%;height:50%;transform:rotate(4deg)}
.hero__photo--3{bottom:0;left:18%;width:65%;height:50%;transform:rotate(-2deg)}

/* ============ Section ============ */
.section{padding:70px 0}
.section--alt{background:#fff}
.section--exp{background:linear-gradient(180deg,#f4fafb 0%,#e7f5f6 100%)}
.section--video{background:#fff;padding:50px 0}
.section--testi{background:linear-gradient(180deg,#fff 0%,#f0f8f9 100%)}
.section--price{background:#fff}
.section--news{background:var(--c-bg)}
.section--schedule{background:#fff}
.section__head{text-align:center;margin-bottom:40px;position:relative}
.section__title{font-size:32px;color:var(--c-primary-dark);margin:0 0 8px}
.section__title:after{
  content:'';display:block;width:60px;height:4px;background:var(--c-accent);
  border-radius:2px;margin:14px auto 0;
}
.section__sub{color:var(--c-muted);max-width:720px;margin:0 auto;font-size:15px}
.section__quote{
  text-align:center;font-style:italic;color:var(--c-primary-dark);
  font-size:18px;font-weight:600;margin-top:30px;
}
.section__more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;float:right;margin-top:-30px}

/* ============ Video ============ */
.video-info{display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center}
.video-box{position:relative;border-radius:var(--radius);overflow:hidden;background:#000;aspect-ratio:16/9;box-shadow:var(--shadow-lg)}
.video-box iframe,.video-box__placeholder{width:100%;height:100%;border:0;position:relative}
.video-box__placeholder img{width:100%;height:100%;object-fit:cover;opacity:.85}
.play-btn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:74px;height:74px;border-radius:50%;border:0;background:var(--c-accent);
  color:#fff;font-size:24px;cursor:pointer;box-shadow:0 6px 20px rgba(0,0,0,.3);
  transition:transform .2s;
}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.08)}
.video-label{
  position:absolute;bottom:14px;left:14px;background:rgba(0,0,0,.6);
  color:#fff;padding:6px 12px;border-radius:20px;font-size:13px;
}
.info-list{display:flex;flex-direction:column;gap:18px}
.info-item{display:flex;gap:14px;align-items:flex-start;background:#fff;padding:16px 18px;border-radius:var(--radius);box-shadow:var(--shadow)}
.info-item__icon{
  width:48px;height:48px;border-radius:12px;background:var(--c-bg);
  color:var(--c-primary);font-size:20px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.info-item h4{margin:0 0 4px;font-size:15px;color:var(--c-primary-dark)}
.info-item p{margin:0;color:var(--c-muted);font-size:14px}

/* ============ Grid / Cards ============ */
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

.card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}

.card--concern{text-align:left;padding:24px 22px}
.card--concern .card__icon{
  width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,#ffd57a,#ffaa3b);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px;
}
.card--concern h4{font-size:16px;margin-bottom:8px;color:var(--c-primary-dark)}
.card--concern p{font-size:14px;color:var(--c-muted);margin:0}

.card--value{text-align:center;padding:28px 20px}
.card--value .card__icon--accent{
  width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 16px;
}
.card--value h4{font-size:16px;color:var(--c-primary-dark)}
.card--value p{font-size:14px;color:var(--c-muted);margin:0}

.card--exp{padding:0;overflow:hidden}
.card--exp .card__img{aspect-ratio:1.2/1;overflow:hidden}
.card--exp .card__img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card--exp:hover .card__img img{transform:scale(1.06)}
.card--exp h4{padding:14px 16px;margin:0;text-align:center;font-size:15px;color:var(--c-primary-dark)}

/* ============ Schedule table ============ */
.schedule-table{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.schedule-table__head,.schedule-table__row{
  display:grid;grid-template-columns:1.2fr 1fr 1fr 1.4fr 1fr 1fr;gap:14px;
  padding:16px 22px;align-items:center;
}
.schedule-table__head{background:var(--c-primary);color:#fff;font-weight:600;font-size:14px}
.schedule-table__row{border-top:1px solid var(--c-border);font-size:14px}
.schedule-table__row:nth-child(odd){background:#fafdfd}
.badge{display:inline-block;background:#fff5e0;color:#c4781a;padding:4px 12px;border-radius:20px;font-weight:600;font-size:13px}

/* ============ Testimonials ============ */
.card--testi{padding:26px}
.testi__rating{color:var(--c-accent);font-size:14px;margin-bottom:10px}
.testi__content{color:var(--c-text);font-style:italic;font-size:14px;min-height:80px}
.testi__author{display:flex;gap:12px;align-items:center;margin-top:14px;border-top:1px solid var(--c-border);padding-top:14px}
.testi__author img{width:48px;height:48px;border-radius:50%;object-fit:cover}
.testi__author strong{display:block;color:var(--c-primary-dark);font-size:14px}
.testi__author span{color:var(--c-muted);font-size:13px}

/* ============ CTA banner ============ */
.cta-banner{background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-dark) 100%);color:#fff;padding:50px 0}
.cta-banner__inner{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-banner h3{margin:0;color:#fff;font-size:24px}
.cta-banner p{margin:6px 0 0;opacity:.9}

/* ============ FAQ ============ */
.faq-grid{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border-radius:12px;box-shadow:var(--shadow);overflow:hidden}
.faq-item summary{
  display:flex;justify-content:space-between;align-items:center;
  padding:16px 22px;font-weight:600;color:var(--c-primary-dark);cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item__icon{transition:transform .2s;color:var(--c-primary)}
.faq-item[open] .faq-item__icon{transform:rotate(180deg)}
.faq-item__a{padding:0 22px 18px;color:var(--c-muted);border-top:1px solid var(--c-border);padding-top:16px}

/* ============ Price card ============ */
.price-card{
  max-width:700px;margin:0 auto;background:#fff;border-radius:20px;
  box-shadow:var(--shadow-lg);overflow:hidden;border:2px solid var(--c-primary);
}
.price-card__head{
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-dark) 100%);
  color:#fff;padding:18px;text-align:center;font-weight:600;letter-spacing:1px;
}
.price-card__body{padding:30px;text-align:center}
.price-card__amount{font-size:46px;font-weight:800;color:var(--c-coral);margin-bottom:20px}
.price-card__amount small{display:block;font-size:14px;color:var(--c-muted);font-weight:500}
.price-card__features{display:flex;flex-direction:column;gap:8px;text-align:left;max-width:420px;margin:0 auto 22px}
.price-card__features li{display:flex;align-items:center;gap:10px;color:var(--c-text);font-size:14px}
.price-card__features i{color:var(--c-primary);background:var(--c-bg);width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px}

/* ============ News ============ */
.card--news{display:block;color:inherit;padding:0;overflow:hidden}
.card--news .card__img{aspect-ratio:16/10;overflow:hidden}
.card--news .card__img img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.card--news:hover .card__img img{transform:scale(1.05)}
.card--news .card__body{padding:18px}
.card--news small{color:var(--c-muted);font-size:12px}
.card--news h4{font-size:15px;margin:6px 0 8px;color:var(--c-primary-dark);line-height:1.4}
.card--news p{font-size:13px;color:var(--c-muted);margin:0}

/* ============ Footer ============ */
.footer{background:#0e3940;color:#cce6e7;padding:50px 0 0;margin-top:60px}
.footer__grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr 1.2fr;gap:30px}
.footer__col h4{color:#fff;margin-bottom:14px;font-size:15px}
.footer__col ul li{margin-bottom:8px}
.footer__col a{color:#cce6e7;font-size:14px}
.footer__col a:hover{color:#fff}
.footer__col p{font-size:14px;color:#cce6e7;margin:0}
.footer__qr img{width:120px;height:120px;background:#fff;padding:6px;border-radius:8px}
.footer__social{display:flex;gap:10px}
.footer__social a{
  width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.footer__social a:hover{background:var(--c-accent);color:#fff}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding:18px 0;font-size:13px}
.footer__bottom .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
.footer__legal a{color:#cce6e7;margin-left:16px}

/* ============ Floating ============ */
.back-top,.floating-call{
  position:fixed;right:20px;width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;color:#fff;
  z-index:90;box-shadow:0 6px 18px rgba(0,0,0,.2);
}
.back-top{bottom:84px;background:var(--c-primary);opacity:0;visibility:hidden;transition:all .3s}
.back-top.show{opacity:1;visibility:visible}
.floating-call{bottom:24px;background:var(--c-accent);animation:pulse 1.6s infinite}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(244,169,60,.6)}
  50%{box-shadow:0 0 0 14px rgba(244,169,60,0)}
}

/* ============ Pagination ============ */
.pagination{display:flex;justify-content:center;gap:6px;margin-top:30px}
.pagination a,.pagination span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:36px;height:36px;padding:0 10px;border-radius:8px;
  background:#fff;color:var(--c-text);border:1px solid var(--c-border);font-weight:500;
}
.pagination a:hover,.pagination .active{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}

/* ============ Page banner (sub-pages) ============ */
.page-banner{
  background:linear-gradient(135deg,#1aa2a4 0%,#117374 100%);
  color:#fff;padding:60px 0 40px;text-align:center;position:relative;overflow:hidden;
}
.page-banner h1{color:#fff;font-size:38px}
.page-banner p{max-width:680px;margin:0 auto;opacity:.95}
.breadcrumb{background:#fff;padding:12px 0;border-bottom:1px solid var(--c-border);font-size:14px}
.breadcrumb a{color:var(--c-primary)}
.breadcrumb__sep{margin:0 8px;color:var(--c-muted)}

/* ============ Forms ============ */
.form{background:#fff;padding:28px;border-radius:var(--radius);box-shadow:var(--shadow)}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.form__group{margin-bottom:14px}
.form__group label{display:block;font-weight:500;margin-bottom:6px;font-size:14px;color:var(--c-text)}
.form input[type=text],.form input[type=tel],.form input[type=email],.form input[type=number],
.form input[type=date],.form select,.form textarea{
  width:100%;padding:11px 14px;border:1px solid var(--c-border);border-radius:10px;
  font-family:inherit;font-size:14px;background:#fff;outline:none;transition:border-color .2s;
}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--c-primary)}
.form textarea{min-height:110px;resize:vertical}
.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:14px}
.alert--success{background:#e6f7f0;color:#1a7c5a;border:1px solid #b6e6d0}
.alert--error{background:#ffeded;color:#c4302b;border:1px solid #f5c2c0}

/* ============ Article (news detail) ============ */
.article{background:#fff;padding:30px;border-radius:var(--radius);box-shadow:var(--shadow);max-width:840px;margin:0 auto}
.article h1{font-size:30px;color:var(--c-primary-dark);margin-bottom:10px}
.article__meta{color:var(--c-muted);font-size:13px;margin-bottom:20px}
.article__content{font-size:16px;line-height:1.8}
.article__content img{border-radius:10px;margin:14px 0}

/* ============ Course card ============ */
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.course-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.course-card__img{aspect-ratio:16/10;overflow:hidden}
.course-card__img img{width:100%;height:100%;object-fit:cover}
.course-card__body{padding:18px}
.course-card__cat{display:inline-block;background:var(--c-bg);color:var(--c-primary);padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500;margin-bottom:8px}
.course-card h3{font-size:17px;margin:0 0 8px;color:var(--c-primary-dark)}
.course-card p{font-size:14px;color:var(--c-muted);margin-bottom:14px}
.course-card__actions{display:flex;gap:8px}

/* ============ Responsive ============ */
@media (max-width: 1024px){
  .hero__title h1{font-size:90px}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr 1fr}
  .schedule-table__head{display:none}
  .schedule-table__row{grid-template-columns:1fr;padding:14px;gap:8px}
  .schedule-table__row > div{display:flex;justify-content:space-between}
  .schedule-table__row > div:before{content:attr(data-label);font-weight:600;color:var(--c-primary-dark)}
  .course-grid{grid-template-columns:repeat(2,1fr)}
  .video-info{grid-template-columns:1fr}
}

@media (max-width: 768px){
  .topbar__contact{gap:14px;font-size:12px}
  .nav{
    position:absolute;top:110px;left:0;right:0;background:#fff;
    padding:12px;box-shadow:0 4px 14px rgba(0,0,0,.1);display:none;
  }
  .nav.open{display:block}
  .nav ul{flex-direction:column;gap:4px}
  .nav-toggle{display:inline-flex}
  .search-mini{display:none}
  .hero{padding:40px 0 60px}
  .hero__inner{grid-template-columns:1fr;gap:30px;text-align:center}
  .hero__title h1{font-size:72px}
  .hero__photos{height:280px}
  .hero__cta{justify-content:center}
  .section{padding:50px 0}
  .section__title{font-size:24px}
  .grid--2,.grid--3,.grid--4,.course-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__bottom .container{flex-direction:column;text-align:center}
  .form__row{grid-template-columns:1fr}
  .price-card__amount{font-size:34px}
  .cta-banner__inner{flex-direction:column;text-align:center}
}

/* ============ Page banner extended ============ */
.page-banner__kicker{
  display:inline-block;background:rgba(255,255,255,.2);color:#fff;
  padding:6px 18px;border-radius:30px;font-weight:600;letter-spacing:1px;
  font-size:13px;margin-bottom:14px;
}
.page-banner__actions{display:flex;gap:12px;justify-content:center;margin-top:24px;flex-wrap:wrap}
.btn--white{border-color:rgba(255,255,255,.6);color:#fff}
.btn--white:hover{background:#fff;color:var(--c-primary)}
.page-banner--sm{padding:40px 0 30px}
.page-banner--sm h1{font-size:28px}

/* ============ Label tag ============ */
.label-tag{
  display:inline-block;background:var(--c-primary);color:#fff;
  padding:4px 14px;border-radius:20px;font-size:12px;font-weight:600;
  letter-spacing:1px;margin-bottom:12px;text-transform:uppercase;
}

/* ============ About grid ============ */
.about-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:start}
.about-content h2{font-size:28px;color:var(--c-primary-dark)}
.rich-content{font-size:15px;line-height:1.8}
.rich-content p{margin-bottom:14px}
.rich-content ul{padding-left:20px}
.rich-content ul li{margin-bottom:8px;position:relative;padding-left:10px}
.about-sidebar__card{background:var(--c-bg);border-radius:var(--radius);padding:22px;margin-bottom:16px;border-left:4px solid var(--c-primary)}
.about-sidebar__card h4{color:var(--c-primary-dark);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.about-sidebar__card ul li{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:14px}
.about-sidebar__card ul li i{color:var(--c-primary);font-size:12px}

/* ============ Solution grid ============ */
.solution-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:40px;align-items:center}
.solution-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.solution-img img{width:100%;height:auto}
.solution-content h2{font-size:28px;color:var(--c-primary-dark);margin-bottom:8px}
.solution-quote{color:var(--c-muted);font-size:15px;margin-bottom:24px}
.solution-item{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}
.solution-item__icon{
  width:48px;height:48px;border-radius:12px;background:var(--c-primary);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;flex-shrink:0;
}
.solution-item h4{margin:0 0 4px;font-size:16px;color:var(--c-primary-dark)}
.solution-item p{margin:0;font-size:14px;color:var(--c-muted)}
.section--solution{background:#fff}

/* ============ CTA Register banner ============ */
.cta-register{background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-dark) 100%);color:#fff;padding:50px 0;text-align:center}
.cta-register h3{color:#fff;font-size:28px;margin-bottom:8px;letter-spacing:1px}
.cta-register > .container > p{opacity:.9;margin-bottom:24px}
.cta-register__inner > p{opacity:.9;margin-bottom:24px}
.cta-register__form{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;max-width:700px;margin:0 auto 12px}
.cta-register__form input{padding:12px 18px;border:0;border-radius:30px;font-family:inherit;font-size:14px;min-width:180px;outline:none}
.cta-register__form input:focus{box-shadow:0 0 0 3px rgba(255,255,255,.3)}
.cta-register small{color:rgba(255,255,255,.7);font-size:13px}

/* ============ Registration page ============ */
.reg-wrapper{display:grid;grid-template-columns:300px 1fr;gap:30px;max-width:900px;margin:0 auto}
.reg-sidebar__card{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:16px}
.reg-sidebar__card h4{color:var(--c-primary-dark);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.reg-sidebar__card ul li{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:14px}
.reg-sidebar__card ul li i{color:var(--c-primary);font-size:12px}
.reg-main .form{max-width:none}

/* ============ Contact page ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.contact-item{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start}
.contact-item__icon{
  width:50px;height:50px;border-radius:14px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.contact-item h4{margin:0 0 4px;font-size:15px;color:var(--c-primary-dark)}
.contact-item p{margin:0;color:var(--c-muted);font-size:14px}
.contact-item a{color:var(--c-primary)}
.contact-social{display:flex;gap:10px;margin-top:20px}
.contact-social a{
  width:42px;height:42px;border-radius:50%;background:var(--c-bg);
  color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;transition:all .2s;
}
.contact-social a:hover{background:var(--c-primary);color:#fff}
.contact-map{margin-top:0}
.contact-map iframe{display:block}

/* ============ Course detail ============ */
.course-detail-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:30px}
.detail-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:0}
.detail-card h3,.detail-card h4{color:var(--c-primary-dark)}
.detail-checklist{list-style:none;padding:0}
.detail-checklist li{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--c-border);font-size:14px}
.detail-checklist li:last-child{border-bottom:0}
.detail-checklist i{color:var(--c-primary);font-size:12px}

/* ============ Category cards ============ */
.cat-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border-top:4px solid var(--c-primary);transition:transform .25s}
.cat-card:hover{transform:translateY(-4px)}
.cat-card h4{color:var(--c-primary-dark);margin-bottom:8px}
.cat-card p{color:var(--c-muted);font-size:14px;margin-bottom:14px}
.cat-card__list li{display:flex;align-items:center;gap:8px;font-size:14px;margin-bottom:6px}
.cat-card__list i{color:var(--c-primary);font-size:10px}

/* ============ News filter ============ */
.news-filter{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}

/* ============ Article extras ============ */
.article__thumb{border-radius:var(--radius);overflow:hidden;margin-bottom:20px}
.article__thumb img{width:100%;height:auto}
.article__share{display:flex;align-items:center;gap:10px;margin-top:24px;padding-top:20px;border-top:1px solid var(--c-border)}
.share-btn{
  width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;
  justify-content:center;color:#fff;font-size:14px;
}
.share-btn--fb{background:#3b5998}
.share-btn--tw{background:#1da1f2}
.related-news{margin-top:40px}
.related-news h3{margin-bottom:20px;color:var(--c-primary-dark)}

/* ============ Tuyen Sinh ============ */
.hero--tuyen-sinh{background:linear-gradient(135deg,#e0f2f2 0%,#cfeef0 50%,#d6f3e9 100%);padding:50px 0 60px}
.hero__inner--ts{grid-template-columns:1.3fr .7fr;gap:30px}
.hero--tuyen-sinh h1{color:var(--c-primary-dark);text-shadow:none}
.ts-tabs{display:flex;gap:8px;margin-top:24px;flex-wrap:wrap}
.ts-tab{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border-radius:30px;background:#fff;color:var(--c-text);font-size:14px;font-weight:500;box-shadow:var(--shadow);transition:all .2s}
.ts-tab:hover,.ts-tab.active{background:var(--c-primary);color:#fff}
.ts-sidebar__card{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-lg)}
.ts-sidebar__card h4{color:var(--c-primary-dark);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.ts-sidebar__card ul{margin:0;padding:0;list-style:none}
.ts-sidebar__card ul li{padding:8px 0;border-bottom:1px solid var(--c-border);font-size:14px}
.ts-sidebar__card ul li:last-child{border-bottom:0}
.ts-info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ts-info-card{background:#fff;border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow);transition:transform .25s}
.ts-info-card:hover{transform:translateY(-4px)}
.ts-info-card__icon{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;margin:0 auto 14px}
.ts-info-card h4{color:var(--c-primary-dark);margin-bottom:8px}
.ts-info-card p{color:var(--c-muted);font-size:14px;margin:0}

/* ============ Search form ============ */
.search-form{display:flex;gap:10px;max-width:600px;margin:0 auto 30px}
.search-form input{flex:1;padding:14px 20px;border:2px solid var(--c-border);border-radius:30px;font-family:inherit;font-size:16px;outline:none}
.search-form input:focus{border-color:var(--c-primary)}

/* ============ Consult banner ============ */
.consult-banner{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.consult-banner h3{color:var(--c-primary-dark);margin-bottom:8px}
.consult-banner p{color:var(--c-muted);margin:0}

/* ============ Animations ============ */
.animate-prepare{opacity:0;transform:translateY(30px);transition:opacity .6s ease, transform .6s ease}
.animate-in{opacity:1;transform:translateY(0)}
.header--scrolled{box-shadow:0 4px 20px rgba(0,0,0,.08)}

/* =========================================================
   HOME - TIN TỨC NỔI BẬT  (Dưới banner)
   ========================================================= */
.section--news-highlight{background:#fff;padding:64px 0 30px}
.section-head-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;margin-bottom:28px;border-bottom:3px solid var(--c-accent);
  padding-bottom:10px;position:relative;
}
.section-head-row__title{
  font-size:26px;color:var(--c-primary-dark);margin:0;font-weight:800;
  display:inline-flex;align-items:center;gap:10px;
}
.section-head-row__title:before{
  content:'';display:inline-block;width:6px;height:26px;border-radius:3px;
  background:var(--c-accent);
}
.btn-more{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border-radius:30px;background:#fff7ea;color:#c4781a;
  font-weight:600;font-size:14px;border:1px solid #ffd99a;
  transition:all .2s;
}
.btn-more:hover{background:var(--c-accent);color:#fff;border-color:var(--c-accent)}

.news-highlight{
  display:grid;grid-template-columns:1.15fr 1.2fr .85fr;gap:24px;align-items:stretch;
}
/* HERO bài chính */
.nh-hero{
  display:flex;flex-direction:column;background:#fff;border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow);color:inherit;transition:all .25s;
  border:1px solid #eef3f5;
}
.nh-hero:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);color:inherit}
.nh-hero__img{position:relative;aspect-ratio:16/11;overflow:hidden}
.nh-hero__img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.nh-hero:hover .nh-hero__img img{transform:scale(1.05)}
.nh-hero__badge{
  position:absolute;top:14px;left:14px;background:var(--c-coral);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:1px;padding:5px 12px;border-radius:20px;
  box-shadow:0 4px 12px rgba(255,107,107,.4);
}
.nh-hero__body{padding:18px 20px 20px}
.nh-hero__body small{color:var(--c-muted);font-size:13px;display:inline-flex;align-items:center;gap:6px}
.nh-hero__body h3{font-size:18px;margin:8px 0 10px;color:var(--c-primary-dark);line-height:1.4}
.nh-hero__body p{font-size:14px;color:var(--c-muted);margin:0;line-height:1.55}

/* List bài phụ */
.nh-list{display:flex;flex-direction:column;gap:14px}
.nh-item{
  display:grid;grid-template-columns:130px 1fr;gap:14px;align-items:center;
  background:#fff;border:1px solid #eef3f5;border-radius:14px;
  padding:10px;color:inherit;transition:all .25s;
}
.nh-item:hover{box-shadow:var(--shadow);transform:translateX(3px);border-color:#cfeef0;color:inherit}
.nh-item__img{aspect-ratio:16/11;overflow:hidden;border-radius:10px}
.nh-item__img img{width:100%;height:100%;object-fit:cover}
.nh-item__body small{display:inline-flex;align-items:center;gap:6px;color:var(--c-muted);font-size:12px}
.nh-item__body h4{font-size:14.5px;margin:6px 0 0;color:var(--c-primary-dark);line-height:1.45;font-weight:600}

/* Banner phụ ngày lễ / hotline */
.nh-banner{
  background:linear-gradient(135deg,#ff5b5b 0%,#c4302b 100%);
  color:#fff;border-radius:16px;overflow:hidden;display:flex;flex-direction:column;
  box-shadow:0 12px 30px rgba(196,48,43,.25);
}
.nh-banner__head{
  background:rgba(0,0,0,.18);text-align:center;padding:14px 18px;
  font-weight:700;font-size:14px;letter-spacing:1.5px;
}
.nh-banner__body{
  flex:1;padding:24px 22px;text-align:center;display:flex;flex-direction:column;
  justify-content:center;gap:8px;
}
.nh-banner__hot{font-size:14px;letter-spacing:3px;opacity:.9;font-weight:600}
.nh-banner__phone{font-size:32px;font-weight:900;letter-spacing:1px}
.nh-banner__body p{font-size:13.5px;line-height:1.55;margin:6px 0 14px;opacity:.95}
.nh-banner .btn--accent{background:#fff;color:#c4302b;align-self:center}
.nh-banner .btn--accent:hover{background:var(--c-accent);color:#fff}

/* =========================================================
   HOME - CHƯƠNG TRÌNH ĐÀO TẠO  (Slider)
   ========================================================= */
.section--home-courses{background:linear-gradient(180deg,#fff 0%,#f4fafb 100%);padding:60px 0}
.hc-slider{position:relative;padding:0 56px}
.hc-swiper{overflow:hidden;padding-bottom:46px}
.hc-swiper .swiper-slide{height:auto;display:flex}
.hc-swiper .swiper-slide > .hc-card{flex:1}
.hc-card{
  background:#fff;border-radius:16px;overflow:hidden;
  box-shadow:0 6px 20px rgba(17,115,116,.08);
  transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;
  border:1px solid #eef3f5;width:100%;
}
.hc-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(17,115,116,.18)}
.hc-card__img{position:relative;aspect-ratio:4/3;overflow:hidden;background:#f0f7f7}
.hc-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.hc-card:hover .hc-card__img img{transform:scale(1.06)}
.hc-card__tag{
  position:absolute;top:14px;right:14px;background:var(--c-accent);color:#fff;
  font-size:11px;font-weight:700;letter-spacing:.6px;padding:5px 12px;border-radius:14px;
  max-width:calc(100% - 28px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  box-shadow:0 4px 12px rgba(0,0,0,.15);
}
.hc-card__body{padding:20px 18px 22px;display:flex;flex-direction:column;flex:1}
.hc-card__body h3{font-size:17px;margin:0 0 8px;color:var(--c-primary-dark);line-height:1.3;font-weight:700}
.hc-card__body p{font-size:13.5px;color:var(--c-muted);margin:0 0 14px;flex:1;line-height:1.55}
.hc-card__link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
  font-weight:600;font-size:14px;align-self:flex-start;
}
.hc-card__link:hover{color:var(--c-primary-dark)}
.hc-card__link i{transition:transform .2s}
.hc-card__link:hover i{transform:translateX(4px)}

.hc-slider__nav{
  position:absolute;top:calc(50% - 23px);transform:translateY(-50%);
  width:46px;height:46px;border-radius:50%;border:0;
  background:var(--c-primary);color:#fff;font-size:16px;
  cursor:pointer;box-shadow:0 8px 22px rgba(17,115,116,.28);
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s,background .2s,opacity .2s;z-index:5;
}
.hc-slider__nav:hover{background:var(--c-primary-dark);transform:translateY(-50%) scale(1.08)}
.hc-swiper__prev{left:0}
.hc-swiper__next{right:0}
.swiper-button-disabled{opacity:.35;pointer-events:none}

/* Pagination dots */
.hc-swiper__pagination{text-align:center;bottom:8px !important}
.hc-swiper__pagination .swiper-pagination-bullet{
  width:8px;height:8px;background:var(--c-primary);opacity:.35;
  transition:all .25s;
}
.hc-swiper__pagination .swiper-pagination-bullet-active{
  opacity:1;width:28px;border-radius:5px;background:var(--c-accent);
}

.hc-actions{display:flex;gap:14px;justify-content:center;margin-top:36px;flex-wrap:wrap}

/* Responsive */
@media (max-width: 1024px){
  .news-highlight{grid-template-columns:1fr 1fr;gap:18px}
  .nh-banner{grid-column:1 / -1;flex-direction:row}
  .nh-banner__head{writing-mode:initial;display:flex;align-items:center}
}
@media (max-width: 768px){
  .section--news-highlight{padding:40px 0 10px}
  .news-highlight{grid-template-columns:1fr}
  .nh-banner{flex-direction:column}
  .nh-item{grid-template-columns:120px 1fr}
  .section-head-row__title{font-size:20px}
  .hc-slider{padding:0 8px}
  .hc-slider__nav{width:38px;height:38px;font-size:13px}
  .hc-swiper__prev{left:-4px}
  .hc-swiper__next{right:-4px}
}
@media (max-width: 600px){
  .nh-hero__body h3{font-size:16px}
  .nh-banner__phone{font-size:26px}
}

/* ============ Extra responsive ============ */
@media (max-width: 1024px){
  .about-grid,.solution-grid,.contact-grid{grid-template-columns:1fr}
  .course-detail-grid{grid-template-columns:1fr}
  .hero__inner--ts{grid-template-columns:1fr}
  .ts-info-grid{grid-template-columns:repeat(2,1fr)}
  .reg-wrapper{grid-template-columns:1fr}
}
@media (max-width: 768px){
  .ts-info-grid{grid-template-columns:1fr}
  .cta-register__form{flex-direction:column;align-items:stretch}
  .cta-register__form input{min-width:auto}
  .page-banner__actions{flex-direction:column;align-items:center}
}

/* =========================================================
   HERO SLIDER (Swiper) — banner trang chủ
   ========================================================= */
.hero-slider{position:relative;overflow:hidden;background:#0a3e44}
.hero-swiper{width:100%;height:var(--slider-h,520px)}
.hero-slide{position:relative;width:100%;height:100%;overflow:hidden}
.hero-slide__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.hero-slide__overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(0,0,0,.55) 0%,rgba(0,0,0,.25) 50%,rgba(0,0,0,0) 100%);
  display:flex;align-items:center;
}
.hero-slide__content{color:#fff;max-width:640px}
.hero-slide__title{font-size:46px;line-height:1.15;margin:0 0 14px;color:#fff;font-weight:800;text-shadow:0 2px 10px rgba(0,0,0,.35)}
.hero-slide__sub{font-size:18px;line-height:1.5;margin:0 0 24px;color:#f1f8f8;text-shadow:0 1px 6px rgba(0,0,0,.4)}
.hero-slide__btn{box-shadow:0 10px 30px rgba(244,169,60,.4)}

.hero-swiper .swiper-pagination{bottom:18px}
.hero-swiper .swiper-pagination-bullet{width:10px;height:10px;background:#fff;opacity:.55;transition:all .2s}
.hero-swiper .swiper-pagination-bullet-active{opacity:1;background:var(--c-accent);width:32px;border-radius:5px}
.hero-swiper .swiper-button-next,
.hero-swiper .swiper-button-prev{
  width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;
  backdrop-filter:blur(8px);transition:all .2s;
}
.hero-swiper .swiper-button-next:hover,
.hero-swiper .swiper-button-prev:hover{background:var(--c-accent)}
.hero-swiper .swiper-button-next:after,
.hero-swiper .swiper-button-prev:after{font-size:18px;font-weight:900}

@media (max-width:768px){
  .hero-swiper{height:380px}
  .hero-slide__title{font-size:28px}
  .hero-slide__sub{font-size:15px}
  .hero-swiper .swiper-button-next,
  .hero-swiper .swiper-button-prev{display:none}
}

/* =========================================================
   Menu dropdown đa cấp (gọn, chuyên nghiệp)
   ========================================================= */
.nav__sub{
  position:absolute;top:100%;left:0;min-width:220px;
  background:#fff;box-shadow:0 12px 30px rgba(0,0,0,.12);
  border-radius:10px;padding:8px 0;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .18s ease-out;z-index:200;
}
.nav__has-sub{position:relative}
.nav__has-sub:hover > .nav__sub,
.nav__has-sub:focus-within > .nav__sub{
  opacity:1;visibility:visible;transform:translateY(0);
}
.nav__sub li{display:block !important}
.nav__sub a{
  display:block !important;padding:9px 18px !important;
  border-radius:0 !important;font-size:14px !important;
  white-space:nowrap;color:var(--c-text);
}
.nav__sub a:hover{background:var(--c-bg);color:var(--c-primary)}
/* Sub-submenu (level 3) */
.nav__sub .nav__sub{top:0;left:100%;margin-left:2px}

@media (max-width:768px){
  .nav__sub{position:static;box-shadow:none;background:#f7fafa;border-radius:0;padding:0;margin:4px 0 8px 16px;opacity:1;visibility:visible;transform:none}
  .nav__sub a{padding:8px 14px !important}
}