/* ============================================================
   CSS dùng chung cho các trang con (chương trình, ứng dụng,
   đội ngũ, học phí, liên hệ). Đi kèm assets/base.css
   ============================================================ */

/* ---------- Hero của trang con ---------- */
.page-hero{padding-block:clamp(38px,5.5vw,68px) clamp(30px,4vw,52px)}
.page-hero .inner{max-width:760px}
.page-hero h1{font-size:clamp(2rem,4.8vw,3.3rem);letter-spacing:-.03em}
.page-hero .lead{font-size:clamp(1rem,1.8vw,1.16rem);color:var(--ink-soft)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.85rem;
  color:var(--ink-faint);margin-bottom:18px}
.crumb a{color:var(--ink-soft)}
.crumb a:hover{color:var(--cyan)}
.crumb span[aria-current]{color:var(--ink)}

/* ---------- Thang bậc CEFR ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:clamp(30px,4vw,44px)}
.rung{padding:18px 18px 20px;border-radius:var(--r-md);background:var(--glass-bg);
  border:1px solid var(--glass-border);backdrop-filter:var(--blur);position:relative;overflow:hidden}
.rung::before{content:"";position:absolute;inset:auto 0 0 0;height:4px}
.rung:nth-child(1)::before{background:linear-gradient(90deg,var(--cyan),var(--sea-blue))}
.rung:nth-child(2)::before{background:linear-gradient(90deg,var(--seaweed-light),var(--cyan))}
.rung:nth-child(3)::before{background:linear-gradient(90deg,var(--gold),var(--starfish))}
.rung:nth-child(4)::before{background:linear-gradient(90deg,var(--coral-pink),var(--shell-pink))}
.rung b{display:block;font-family:var(--font-title);font-size:1.02rem;margin-bottom:3px}
.rung em{display:block;font-style:normal;font-size:.78rem;color:var(--cyan);font-weight:600;margin-bottom:8px}
.rung span{font-size:.85rem;color:var(--ink-soft)}

/* ---------- Khối chương trình chi tiết ---------- */
.course{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(24px,3.5vw,48px);
  padding-block:clamp(32px,4.5vw,50px);border-top:1px solid var(--glass-border)}
.course:first-of-type{border-top:0;padding-top:0}
.course-side .badge-age{display:inline-block;font-family:var(--font-title);font-weight:600;font-size:.82rem;
  padding:6px 14px;border-radius:999px;background:var(--glass-bg-light);
  border:1px solid var(--glass-border);margin-bottom:14px}
.course-side h2{font-size:clamp(1.5rem,3vw,2rem);letter-spacing:-.02em;margin-bottom:.2em}
.course-side .cefr{color:var(--cyan);font-weight:600;font-size:.92rem;margin-bottom:16px}
.course-side p{color:var(--ink-soft);font-size:.95rem}
.meta{display:grid;gap:10px;margin-top:20px;padding-top:20px;border-top:1px solid var(--glass-border)}
.meta div{display:flex;gap:10px;font-size:.88rem;color:var(--ink-soft)}
.meta i{font-style:normal;flex:none}
.meta b{color:var(--ink);font-weight:600}

.outcome{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.out-card{padding:18px 20px;border-radius:var(--r-md);background:var(--glass-bg);
  border:1px solid var(--glass-border);backdrop-filter:var(--blur)}
.out-card h4{font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);margin-bottom:12px}
.out-card ul{display:grid;gap:9px}
.out-card li{display:flex;gap:9px;font-size:.9rem;color:var(--ink-soft);line-height:1.5}
.out-card li::before{content:"";flex:none;width:6px;height:6px;margin-top:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px rgba(11,201,218,.8)}

/* ---------- Dòng thời gian một buổi học ---------- */
.timeline{display:grid;gap:0;max-width:820px;margin-inline:auto}
.tl{display:grid;grid-template-columns:88px 1fr;gap:20px;padding-bottom:26px;position:relative}
.tl::before{content:"";position:absolute;left:103px;top:34px;bottom:-4px;width:2px;background:var(--glass-border)}
.tl:last-child{padding-bottom:0}
.tl:last-child::before{display:none}
.tl-time{font-family:var(--font-title);font-weight:600;font-size:.9rem;color:var(--gold);
  text-align:right;padding-top:5px;position:relative}
.tl-time::after{content:"";position:absolute;right:-21px;top:11px;width:11px;height:11px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 4px var(--abyss),var(--glow-cyan)}
.tl-body h3{font-size:1.02rem;margin-bottom:.25em}
.tl-body p{font-size:.9rem;color:var(--ink-soft);margin:0}

/* ---------- Lưới tính năng ứng dụng ---------- */
.feat{display:flex;flex-direction:column;height:100%}
.feat .tagline{font-size:.76rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:9px}
.feat h3{font-size:1.1rem}
.feat p{flex:1}
.feat .how{margin-top:16px;padding-top:14px;border-top:1px solid var(--glass-border);
  font-size:.83rem;color:var(--ink-faint)}

/* ---------- Thẻ giáo viên ---------- */
.tcard{text-align:center}
.tcard .avatar{width:92px;height:92px;font-size:2.4rem;margin-bottom:14px}
.tcard h3{font-size:1.05rem;margin-bottom:.1em}
.tcard .flag{font-size:.84rem;color:var(--ink-faint);margin-bottom:10px}
.tcard .bio{font-size:.87rem;color:var(--ink-soft);margin-bottom:0}

/* ---------- Bảng khoản không thu ---------- */
.nofee{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.nofee li{display:flex;gap:11px;align-items:center;padding:14px 16px;border-radius:14px;
  background:rgba(249,89,31,.07);border:1px solid rgba(249,89,31,.22);font-size:.91rem}
.nofee svg{flex:none;color:var(--starfish-light)}

/* ---------- Liên hệ ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,3.5vw,44px);align-items:start}
.channels{display:grid;gap:12px;margin-bottom:26px}
.chan{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:var(--r-md);
  background:var(--glass-bg);border:1px solid var(--glass-border);backdrop-filter:var(--blur);
  transition:border-color .3s,transform .3s}
.chan:hover{border-color:var(--glass-border-glow);transform:translateX(5px)}
.chan i{font-style:normal;font-size:1.3rem;flex:none;width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;background:var(--glass-bg-light);border:1px solid var(--glass-border)}
.chan b{display:block;font-family:var(--font-title);font-size:1rem;font-weight:600}
.chan span{font-size:.87rem;color:var(--ink-soft)}
.branch{margin-bottom:14px}
.branch h3{font-size:1.08rem;margin-bottom:.35em}
.branch .addr{font-size:.92rem;color:var(--ink-soft);margin-bottom:12px}
.branch .hours{display:flex;flex-wrap:wrap;gap:8px}
.branch .hours span{font-size:.79rem;padding:5px 11px;border-radius:999px;
  background:var(--glass-bg-light);border:1px solid var(--glass-border);color:var(--ink-soft)}
.map{aspect-ratio:16/10;border-radius:var(--r-lg);display:grid;place-items:center;text-align:center;
  background:
    repeating-linear-gradient(45deg,rgba(255,255,255,.02) 0 12px,transparent 12px 24px),
    linear-gradient(150deg,rgba(11,201,218,.12),rgba(6,26,75,.6));
  border:1px dashed var(--glass-border-glow);color:var(--ink-faint);font-size:.9rem;padding:24px}
.map i{font-style:normal;font-size:2.2rem;display:block;margin-bottom:10px}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .course,.contact-grid{grid-template-columns:1fr}
  .ladder{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .outcome,.nofee{grid-template-columns:1fr}
  .ladder{grid-template-columns:1fr}
  .tl{grid-template-columns:64px 1fr;gap:14px}
  .tl::before{left:73px}
  .tl-time::after{right:-19px}
}