/* ============================================
   CSS Trang Chủ - tiengtrungcoban.com
   Theme: Flatsome | File: home-custom.css
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Variables ── */
:root {
  --navy:   #1b3251;
  --navy2:  #243f63;
  --red:    #c2392e;
  --red2:   #d94f44;
  --gold:   #c8882a;
  --gold2:  #e8c97a;
  --cream:  #fdf8f2;
  --ice:    #f0f6fb;
  --muted:  #64788e;
  --border: rgba(27,50,81,.11);
  --white:  #ffffff;
  --txt:    #182436;
  --r:      10px;
  --sh:     0 6px 32px rgba(27,50,81,.10);
  --sh-sm:  0 2px 12px rgba(27,50,81,.07);
}

/* ── Reset cục bộ ── */
.ttcb-wrapper {
  font-family: 'Inter', sans-serif;
  color: var(--txt);
  background: var(--white);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
.ttcb-wrapper *, .ttcb-wrapper *::before, .ttcb-wrapper *::after { box-sizing: border-box; }
.ttcb-wrapper h1, .ttcb-wrapper h2, .ttcb-wrapper h3, .ttcb-wrapper h4 {
  font-family: 'Inter', sans-serif;
  line-height: 1.2;
  font-weight: 700;
  margin-top: 0;
}
.ttcb-wrapper img { max-width: 100%; display: block; }
.ttcb-wrapper a { text-decoration: none; color: inherit; box-shadow: none; outline: none; }
.ttcb-wrapper p { margin-bottom: 0; }
.ttcb-container { max-width: 1180px; margin: 0 auto; padding: 0 28px; width: 100%; }

/* ── Buttons ── */
.ttcb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--r);
  cursor: pointer;
  transition: all .18s;
  border: none;
  text-align: center;
}
.ttcb-btn-red {
  background: var(--red);
  color: #fff;
  padding: 14px 30px;
  font-size: 15px;
}
.ttcb-btn-red:hover {
  background: var(--red2);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(194,57,46,.3);
  color: #fff;
}
/* ★ FIX: chữ trắng trước khi hover */
.ttcb-btn-navy {
  background: var(--navy);
  color: #fff;
  -webkit-text-fill-color: #fff;  /* ← thêm dòng này */
  padding: 14px 30px;
  font-size: 15px;
}
.ttcb-btn-navy:hover {
  background: var(--navy2);
  transform: translateY(-1px);
  color: #fff;
  -webkit-text-fill-color: #fff;  /* ← thêm dòng này */
}
.ttcb-btn-outline {
  background: transparent;
  color: var(--navy);
  padding: 13px 28px;
  font-size: 14px;
  border: 1.5px solid var(--navy);
}
.ttcb-btn-outline:hover { background: var(--navy); color: #fff; }
.ttcb-btn-ghost {
  background: rgba(255,255,255,.1);
  color: rgba(255,255,255,.85);
  padding: 13px 26px;
  font-size: 14px;
  border: 1px solid rgba(255,255,255,.18);
}
.ttcb-btn-ghost:hover { background: rgba(255,255,255,.18); color: #fff; }

/* ── Section Header ── */
.ttcb-wrapper .ttcb-sh { margin-bottom: 54px; }
.ttcb-wrapper .ttcb-sh.center { text-align: center; }
.ttcb-wrapper .ttcb-sh.center .sub { margin: 0 auto; }
.ttcb-wrapper .sh-label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.ttcb-wrapper .sh-label::before {
  content: '';
  display: block;
  width: 22px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
}
.ttcb-wrapper .ttcb-sh.center .sh-label { justify-content: center; }
.ttcb-wrapper .ttcb-sh.center .sh-label::before { display: none; }
.ttcb-wrapper .ttcb-sh h2 { font-size: 38px; color: var(--navy); font-weight: 700; margin-bottom: 14px; letter-spacing: -.5px; }
.ttcb-wrapper .ttcb-sh .sub { font-size: 15.5px; color: var(--muted); max-width: 520px; line-height: 1.7; }

/* ── Hero ── */
.ttcb-wrapper .hero { background: var(--navy); position: relative; overflow: hidden; padding: 60px 0 0; }
.ttcb-wrapper .hero::before {
  content: '文';
  position: absolute;
  right: -20px; bottom: 0;
  font-size: 560px;
  font-weight: 700;
  color: rgba(255,255,255,.03);
  line-height: 1;
  pointer-events: none;
}
.ttcb-wrapper .hero-grid { display: grid; grid-template-columns: 55fr 45fr; gap: 56px; align-items: end; }
.ttcb-wrapper .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200,136,42,.16);
  border: 1px solid rgba(200,136,42,.28);
  color: var(--gold2);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 15px;
  border-radius: 100px;
  margin-bottom: 24px;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.ttcb-wrapper .hero h1 { font-size: 44px; font-weight: 700; color: #fff; line-height: 1.08; margin-bottom: 22px; letter-spacing: -1px; }
.ttcb-wrapper .hero h1 em { color: var(--gold2); font-style: normal; }
.ttcb-wrapper .hero-p { color: rgba(255,255,255,.65); font-size: 16.5px; max-width: 470px; margin-bottom: 36px; }
.ttcb-wrapper .hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 52px; }
.ttcb-wrapper .hero-stats { display: flex; gap: 40px; padding-top: 36px; border-top: 1px solid rgba(255,255,255,.09); }
.ttcb-wrapper .stat-n { font-size: 34px; font-weight: 700; color: var(--gold2); line-height: 1; }
.ttcb-wrapper .stat-l { font-size: 12.5px; color: rgba(255,255,255,.5); margin-top: 5px; }
.ttcb-wrapper .hero-img-wrap {
  background: rgba(255,255,255,.05);
  border-radius: 16px 16px 0 0;
  border: 1px solid rgba(255,255,255,.09);
  border-bottom: none;
  padding: 28px 28px 0;
  position: relative;
}
.ttcb-wrapper .hero-img-wrap img { border-radius: 8px 8px 0 0; width: 100%; min-height: 400px; object-fit: cover; }
.ttcb-wrapper .hero-pill {
  position: absolute;
  top: 44px; left: -18px;
  background: #fff;
  border-radius: 50px;
  padding: 10px 18px;
  box-shadow: var(--sh);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10;
}
.ttcb-wrapper .hero-pill-icon {
  width: 36px; height: 36px;
  background: var(--red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
}
.ttcb-wrapper .hero-pill strong { font-size: 14px; font-weight: 700; color: var(--navy); display: block; line-height: 1.2; margin-bottom: 0; }
.ttcb-wrapper .hero-pill span { font-size: 11px; color: var(--muted); }

/* ── Trust Bar ── */
.ttcb-wrapper .trust-bar { background: var(--cream); border-bottom: 1px solid var(--border); padding: 15px 0; }
.ttcb-wrapper .trust-inner { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ttcb-wrapper .trust-label { font-size: 12.5px; color: var(--muted); font-weight: 600; margin-right: 4px; flex-shrink: 0; }
.ttcb-wrapper .tag {
  font-size: 13px;
  font-weight: 500;
  padding: 5px 15px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--navy2);
  background: #fff;
  transition: all .16s;
}
.ttcb-wrapper .tag:hover { background: var(--navy); color: #fff; border-color: var(--navy); }

/* ── Features ── */
.ttcb-wrapper .features { padding: 96px 0; }
.ttcb-wrapper .feat-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 26px; }
.ttcb-wrapper .feat-card {
  padding: 34px 30px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fff;
  transition: all .22s;
  position: relative;
  overflow: hidden;
}
.ttcb-wrapper .feat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  height: 3px; width: 0;
  background: var(--red);
  border-radius: 0 0 0 14px;
  transition: width .3s;
}
.ttcb-wrapper .feat-card:hover { box-shadow: var(--sh); transform: translateY(-4px); }
.ttcb-wrapper .feat-card:hover::after { width: 100%; }
.ttcb-wrapper .feat-ico { font-size: 28px; margin-bottom: 20px; }
.ttcb-wrapper .feat-card h3 { font-size: 18px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.ttcb-wrapper .feat-card p { font-size: 14px; color: var(--muted); line-height: 1.75; }

/* ── Path ── */
.ttcb-wrapper .path { background: var(--navy); padding: 90px 0; position: relative; overflow: hidden; }
.ttcb-wrapper .path::before {
  content: 'HSK';
  position: absolute;
  right: -20px; top: 50%;
  transform: translateY(-50%);
  font-size: 280px;
  font-weight: 700;
  color: rgba(255,255,255,.03);
  pointer-events: none;
}
.ttcb-wrapper .path .sh-label,
.ttcb-wrapper .testi .sh-label { color: var(--gold2); }
.ttcb-wrapper .path .sh-label::before,
.ttcb-wrapper .testi .sh-label::before { background: var(--gold2); }
.ttcb-wrapper .path h2,
.ttcb-wrapper .testi h2 { color: #fff; }
.ttcb-wrapper .path .sub,
.ttcb-wrapper .testi .sub { color: rgba(255,255,255,.55); }
.ttcb-wrapper .path-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.ttcb-wrapper .path-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px;
  padding: 30px 26px;
  transition: all .2s;
  position: relative;
  z-index: 2;
}
.ttcb-wrapper .path-card:hover { background: rgba(255,255,255,.1); border-color: rgba(232,201,122,.3); }
.ttcb-wrapper .path-num { font-size: 44px; font-weight: 700; color: rgba(255,255,255,.07); line-height: 1; position: absolute; top: 20px; right: 24px; }
.ttcb-wrapper .path-badge {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  margin-bottom: 16px;
}
.ttcb-wrapper .path-badge.green { background: rgba(52,168,83,.15); color: #4caf6a; }
.ttcb-wrapper .path-badge.amber { background: rgba(200,136,42,.15); color: var(--gold2); }
.ttcb-wrapper .path-badge.red2  { background: rgba(194,57,46,.15);  color: #e06060; }
.ttcb-wrapper .path-card h4 { font-size: 18px; color: #fff; margin-bottom: 8px; font-weight: 700; }
.ttcb-wrapper .path-card p { font-size: 13.5px; color: rgba(255,255,255,.55); line-height: 1.7; margin-bottom: 16px; }
.ttcb-wrapper .path-tags { display: flex; gap: 7px; flex-wrap: wrap; }
.ttcb-wrapper .path-tag { font-size: 11.5px; padding: 3px 10px; border-radius: 100px; background: rgba(255,255,255,.08); color: rgba(255,255,255,.6); }

/* ── Tutor ── */
.ttcb-wrapper .tutor { padding: 96px 0; background: var(--ice); }
.ttcb-wrapper .tutor-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.ttcb-wrapper .tutor-visual { position: relative; }
.ttcb-wrapper .tutor-img { border-radius: 14px; overflow: hidden; box-shadow: var(--sh); }
.ttcb-wrapper .tutor-img img { width: 100%; min-height: 500px; object-fit: cover; }
.ttcb-wrapper .tutor-float {
  position: absolute;
  bottom: -20px; right: -20px;
  background: #fff;
  border-radius: 14px;
  padding: 20px 24px;
  box-shadow: var(--sh);
  border: 1px solid var(--border);
}
.ttcb-wrapper .tutor-float-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.ttcb-wrapper .tutor-float-row:last-child { margin-bottom: 0; }
.ttcb-wrapper .tf-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.ttcb-wrapper .tf-dot.green { background: #4caf6a; }
.ttcb-wrapper .tf-dot.amber { background: var(--gold); }
.ttcb-wrapper .tf-label { font-size: 13px; font-weight: 600; color: var(--navy); }
.ttcb-wrapper .tf-val { font-size: 12px; color: var(--muted); margin-left: auto; }
.ttcb-wrapper .tutor-list { display: flex; flex-direction: column; gap: 14px; margin: 28px 0 32px; }
.ttcb-wrapper .tutor-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 20px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: all .18s;
}
.ttcb-wrapper .tutor-item:hover { border-color: var(--navy); box-shadow: var(--sh-sm); }
.ttcb-wrapper .ti-ico {
  width: 40px; height: 40px; min-width: 40px;
  background: var(--ice);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.ttcb-wrapper .tutor-item h4 { font-size: 14.5px; font-weight: 700; color: var(--navy); margin-bottom: 3px; }
.ttcb-wrapper .tutor-item p { font-size: 13px; color: var(--muted); }

/* ── Tools ── */
.ttcb-wrapper .tools { padding: 96px 0; }
.ttcb-wrapper .tools-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.ttcb-wrapper .tool-card {
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fff;
  transition: all .22s;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.ttcb-wrapper .tool-card:hover { box-shadow: var(--sh); transform: translateY(-4px); }
.ttcb-wrapper .tool-top { padding: 26px 24px 18px; background: var(--ice); }
.ttcb-wrapper .tool-top-ico { font-size: 26px; margin-bottom: 12px; }
.ttcb-wrapper .tool-top h3 { font-size: 18px; color: var(--navy); font-weight: 700; margin-bottom: 5px; }
.ttcb-wrapper .tool-top p { font-size: 13px; color: var(--muted); }
.ttcb-wrapper .tool-body { padding: 20px 22px; flex: 1; }
.ttcb-wrapper .han-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 7px; }
.ttcb-wrapper .han-ch {
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  color: var(--navy);
  background: var(--cream);
  transition: all .15s;
}
.ttcb-wrapper .han-ch:hover { background: var(--navy); color: var(--gold2); }
.ttcb-wrapper .vocab-list { display: flex; flex-direction: column; gap: 9px; }
.ttcb-wrapper .vocab-row {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 13px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--cream);
}
.ttcb-wrapper .play {
  width: 30px; height: 30px;
  background: var(--red);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 10px;
  flex-shrink: 0;
  transition: background .15s;
  cursor: pointer;
}
.ttcb-wrapper .play:hover { background: var(--red2); }
.ttcb-wrapper .vz { font-size: 20px; color: var(--navy); line-height: 1; }
.ttcb-wrapper .vp { font-size: 10.5px; color: var(--muted); }
.ttcb-wrapper .vv { font-size: 12.5px; font-weight: 600; margin-left: auto; color: var(--navy2); }
.ttcb-wrapper .pdf-list { display: flex; flex-direction: column; gap: 8px; }
.ttcb-wrapper .pdf-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 13px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--cream);
  transition: border-color .15s;
}
.ttcb-wrapper .pdf-row:hover { border-color: var(--red); color: inherit; }
.ttcb-wrapper .pdf-ic {
  width: 28px; height: 28px;
  background: var(--red);
  border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 9px; font-weight: 800;
  flex-shrink: 0;
}
.ttcb-wrapper .pdf-n { font-size: 12.5px; font-weight: 600; color: var(--navy); }
.ttcb-wrapper .pdf-s { font-size: 11px; color: var(--muted); margin-left: auto; }
.ttcb-wrapper .tool-foot { padding: 15px 22px; border-top: 1px solid var(--border); }
.ttcb-wrapper .larrow { font-size: 13.5px; font-weight: 700; color: var(--navy); display: inline-flex; align-items: center; gap: 6px; transition: all .16s; }
.ttcb-wrapper .larrow:hover { color: var(--red); gap: 10px; }

/* ── HSK Progress ── */
.ttcb-wrapper .hsk { background: var(--cream); padding: 90px 0; }
.ttcb-wrapper .hsk-track { margin-top: 54px; }
.ttcb-wrapper .hsk-levels { display: grid; grid-template-columns: repeat(9,1fr); gap: 10px; margin-bottom: 32px; }
.ttcb-wrapper .hsk-lv {
  border-radius: 10px;
  padding: 16px 10px 14px;
  text-align: center;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  transition: all .2s;
  position: relative;
}
.ttcb-wrapper .hsk-lv:hover,
.ttcb-wrapper .hsk-lv.active { background: var(--navy); border-color: var(--navy); }
.ttcb-wrapper .hsk-lv:hover .lv-n,
.ttcb-wrapper .hsk-lv.active .lv-n { color: var(--gold2); }
.ttcb-wrapper .hsk-lv:hover .lv-l,
.ttcb-wrapper .hsk-lv.active .lv-l { color: rgba(255,255,255,.6); }
.ttcb-wrapper .lv-n { font-size: 20px; font-weight: 700; color: var(--navy); line-height: 1; }
.ttcb-wrapper .lv-l { font-size: 10px; font-weight: 600; color: var(--muted); margin-top: 4px; text-transform: uppercase; letter-spacing: .05em; }
.ttcb-wrapper .hsk-info { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.ttcb-wrapper .hsk-info-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 22px 20px; }
.ttcb-wrapper .hsk-info-card h4 { font-size: 12px; font-weight: 700; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 6px; }
.ttcb-wrapper .hsk-info-card p { font-size: 14px; color: var(--txt); font-weight: 500; }
.ttcb-wrapper .hsk-bar { height: 6px; background: var(--ice); border-radius: 3px; margin-top: 10px; overflow: hidden; }
.ttcb-wrapper .hsk-bar-fill { height: 100%; background: var(--red); border-radius: 3px; transition: width .5s; }

/* ── Blog Posts ── */
.ttcb-wrapper .posts { padding: 96px 0; }
.ttcb-wrapper .posts-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 26px; }
.ttcb-wrapper .post-card {
  border-radius: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all .22s;
  background: #fff;
  display: flex;
  flex-direction: column;
}
.ttcb-wrapper .post-card:hover { box-shadow: var(--sh); transform: translateY(-3px); }
.ttcb-wrapper .post-img { overflow: hidden; }
.ttcb-wrapper .post-img img { width: 100%; height: 200px; object-fit: cover; transition: transform .4s; }
.ttcb-wrapper .post-card:hover .post-img img { transform: scale(1.04); }
.ttcb-wrapper .post-card.featured .post-img img { height: 260px; }
.ttcb-wrapper .post-body { padding: 22px 22px 20px; flex: 1; }
.ttcb-wrapper .post-cat { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--red); margin-bottom: 10px; }
.ttcb-wrapper .post-body h3 { font-size: 17px; font-weight: 700; color: var(--navy); margin-bottom: 8px; line-height: 1.35; }
.ttcb-wrapper .post-card.featured .post-body h3 { font-size: 20px; }
.ttcb-wrapper .post-body p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.ttcb-wrapper .post-foot { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.ttcb-wrapper .post-read { font-size: 13px; font-weight: 600; color: var(--navy); display: flex; align-items: center; gap: 6px; transition: all .15s; }
.ttcb-wrapper .post-read:hover { color: var(--red); gap: 10px; }

/* ── Testimonials ── */
.ttcb-wrapper .testi { background: var(--navy); padding: 90px 0; position: relative; overflow: hidden; }
.ttcb-wrapper .testi::after {
  content: '"';
  position: absolute;
  right: 5%; top: 10%;
  font-size: 400px;
  color: rgba(255,255,255,.03);
  line-height: 1;
  pointer-events: none;
}
.ttcb-wrapper .testi-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.ttcb-wrapper .testi-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px;
  padding: 28px 24px;
  transition: all .2s;
  display: flex;
  flex-direction: column;
  gap: 18px;
  z-index: 2;
  position: relative;
}
.ttcb-wrapper .testi-card:hover { background: rgba(255,255,255,.1); }
.ttcb-wrapper .stars { color: var(--gold2); font-size: 13px; letter-spacing: 2px; }
.ttcb-wrapper .testi-q { font-size: 14px; color: rgba(255,255,255,.7); line-height: 1.75; font-style: italic; flex: 1; margin-bottom: 0; }
.ttcb-wrapper .testi-by { display: flex; align-items: center; gap: 12px; }
.ttcb-wrapper .testi-av {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  border: 1.5px solid rgba(255,255,255,.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700;
  color: var(--gold2);
  flex-shrink: 0;
}
.ttcb-wrapper .testi-name { font-size: 14px; font-weight: 700; color: #fff; }
.ttcb-wrapper .testi-role { font-size: 11.5px; color: rgba(255,255,255,.45); }

/* ── B2B ── */
.ttcb-wrapper .b2b { padding: 96px 0; }
.ttcb-wrapper .b2b-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.ttcb-wrapper .b2b-img { border-radius: 14px; overflow: hidden; box-shadow: var(--sh); position: relative; }
.ttcb-wrapper .b2b-img img { width: 100%; min-height: 440px; object-fit: cover; }
.ttcb-wrapper .b2b-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 32px;
  background: linear-gradient(to top, rgba(27,50,81,.9) 0%, transparent 100%);
}
.ttcb-wrapper .b2b-overlay blockquote { font-size: 14px; color: rgba(255,255,255,.8); font-style: italic; line-height: 1.7; margin-bottom: 14px; }
.ttcb-wrapper .b2b-overlay cite { font-size: 12.5px; color: var(--gold2); font-style: normal; font-weight: 700; }
.ttcb-wrapper .curri { display: flex; flex-direction: column; gap: 11px; margin: 26px 0 32px; }
.ttcb-wrapper .curri-item { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; color: var(--txt); }
.ttcb-wrapper .cico {
  width: 20px; height: 20px; min-width: 20px;
  background: rgba(194,57,46,.1);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--red); font-size: 10.5px;
  margin-top: 3px;
}
.ttcb-wrapper .b2b-logos { display: grid; grid-template-columns: repeat(5,1fr); gap: 16px 20px; align-items: center; margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--border); }
.ttcb-wrapper .b2b-logos img { height: 26px; width: 100%; object-fit: contain; object-position: left center; opacity: .45; filter: grayscale(1); transition: all .2s; }
.ttcb-wrapper .b2b-logos img:hover { opacity: 1; filter: none; }

/* ── CTA Final ── */
.ttcb-wrapper .cta-final { background: var(--cream); padding: 96px 0; border-top: 1px solid var(--border); }
.ttcb-wrapper .cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.ttcb-wrapper .cta-right { display: flex; flex-direction: column; gap: 16px; }
.ttcb-wrapper .cta-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 24px 20px;
  display: flex; gap: 18px; align-items: flex-start;
  transition: all .2s;
  cursor: pointer;
}
.ttcb-wrapper .cta-card:hover { box-shadow: var(--sh); border-color: var(--navy); }
.ttcb-wrapper .cta-card-ico {
  width: 48px; height: 48px; min-width: 48px;
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.ttcb-wrapper .cta-card-ico.red  { background: rgba(194,57,46,.1); }
.ttcb-wrapper .cta-card-ico.navy { background: var(--ice); }
.ttcb-wrapper .cta-card h4 { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.ttcb-wrapper .cta-card p { font-size: 13px; color: var(--muted); }
.ttcb-wrapper .cta-card-arrow { margin-left: auto; font-size: 20px; color: var(--muted); margin-top: 4px; transition: all .15s; }
.ttcb-wrapper .cta-card:hover .cta-card-arrow { color: var(--navy); transform: translateX(3px); }

/* Form trong CTA */
.ttcb-wrapper .contact-form { background: var(--navy); border-radius: 16px; padding: 36px 32px; }
.ttcb-wrapper .contact-form h3 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 6px; letter-spacing: -.3px; }
.ttcb-wrapper .contact-form p { font-size: 13.5px; color: rgba(255,255,255,.55); margin-bottom: 24px; }
.ttcb-wrapper .form-row { margin-bottom: 14px; }
.ttcb-wrapper .form-row label { display: block; font-size: 12px; font-weight: 700; color: rgba(255,255,255,.5); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; }
.ttcb-wrapper .form-row input,
.ttcb-wrapper .form-row select,
.ttcb-wrapper .form-row textarea {
  width: 100%;
  padding: 12px 15px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.07);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  outline: none;
  transition: border .15s;
  height: 46px;
  line-height: 1.5;
  -webkit-appearance: none;
  appearance: none;
}
.ttcb-wrapper .form-row select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23ffffff' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}
.ttcb-wrapper .form-row input::placeholder,
.ttcb-wrapper .form-row textarea::placeholder { color: rgba(255,255,255,.28); }
.ttcb-wrapper .form-row input:focus,
.ttcb-wrapper .form-row select:focus { border-color: var(--gold2); }
.ttcb-wrapper .form-row select { color: rgba(255,255,255,.7); }
.ttcb-wrapper .form-row select option { color: var(--txt); background: #fff; }
.ttcb-wrapper .form-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.ttcb-wrapper .submit-btn {
  width: 100%;
  padding: 14px;
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: 9px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background .16s;
  margin-top: 6px;
}
.ttcb-wrapper .submit-btn:hover { background: var(--red2); }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: none; }
}
.ttcb-wrapper .hero-badge  { animation: fadeUp .45s ease both; }
.ttcb-wrapper .hero h1     { animation: fadeUp .5s ease both; }
.ttcb-wrapper .hero-p      { animation: fadeUp .5s .1s ease both; }
.ttcb-wrapper .hero-btns   { animation: fadeUp .5s .18s ease both; }
.ttcb-wrapper .hero-stats  { animation: fadeUp .5s .28s ease both; }
.ttcb-wrapper .hero-img-wrap { animation: fadeUp .6s .12s ease both; }

/* ── Responsive 1024px ── */
@media (max-width: 1024px) {
  .ttcb-wrapper .testi-grid { grid-template-columns: repeat(2,1fr); }
}

/* ── Responsive 900px ── */
@media (max-width: 900px) {
  .ttcb-wrapper .hero-grid { grid-template-columns: 1fr; }
  .ttcb-wrapper .hero-img-wrap { display: none; }
  .ttcb-wrapper .hero { padding: 60px 0 52px; }
  .ttcb-wrapper .hero h1 { font-size: 40px; }
  .ttcb-wrapper .hero-stats { gap: 24px; }
  .ttcb-wrapper .feat-grid,
  .ttcb-wrapper .tools-grid { grid-template-columns: repeat(2,1fr); }
  .ttcb-wrapper .path-grid { grid-template-columns: repeat(2,1fr); }
  .ttcb-wrapper .posts-grid { grid-template-columns: 1fr; }
  .ttcb-wrapper .tutor-grid,
  .ttcb-wrapper .b2b-grid,
  .ttcb-wrapper .cta-inner { grid-template-columns: 1fr; gap: 48px; }
  .ttcb-wrapper .tutor-float { right: 0; bottom: -10px; }
  .ttcb-wrapper .hsk-levels { grid-template-columns: repeat(5,1fr); }
  .ttcb-wrapper .hsk-info { grid-template-columns: repeat(2,1fr); }
  .ttcb-wrapper .b2b-logos { grid-template-columns: repeat(4,1fr); }
  .ttcb-wrapper .ttcb-sh h2 { font-size: 32px; }
}

/* ── Responsive 600px ── */
@media (max-width: 600px) {
  .ttcb-wrapper .ttcb-container { padding: 0 16px; }
  .ttcb-wrapper { font-size: 14px; }
  .ttcb-wrapper .hero { padding: 36px 0 48px; }
  .ttcb-wrapper .hero::before { display: none; }
  .ttcb-wrapper .hero-badge { font-size: 10.5px; padding: 5px 12px; }
  .ttcb-wrapper .hero h1 { font-size: 32px; letter-spacing: -.3px; line-height: 1.1; }
  .ttcb-wrapper .hero h1 br { display: none; }
  .ttcb-wrapper .hero-p { font-size: 14px; max-width: 100%; margin-bottom: 28px; }
  .ttcb-wrapper .hero-btns { flex-direction: column; gap: 10px; margin-bottom: 36px; }
  .ttcb-wrapper .hero-btns .ttcb-btn { width: 100%; justify-content: center; font-size: 14px; padding: 13px 20px; }
  .ttcb-wrapper .hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding-top: 24px; }
  .ttcb-wrapper .stat-n { font-size: 28px; }
  .ttcb-wrapper .stat-l { font-size: 11.5px; }
  .ttcb-wrapper .trust-bar { padding: 12px 0; }
  .ttcb-wrapper .trust-inner { gap: 6px; }
  .ttcb-wrapper .trust-label { display: none; }
  .ttcb-wrapper .tag { font-size: 11.5px; padding: 4px 10px; }
  .ttcb-wrapper .ttcb-sh { margin-bottom: 32px; }
  .ttcb-wrapper .ttcb-sh h2 { font-size: 24px; letter-spacing: -.3px; }
  .ttcb-wrapper .ttcb-sh .sub { font-size: 14px; }
  .ttcb-wrapper .sh-label { font-size: 10.5px; }
  .ttcb-wrapper .features,
  .ttcb-wrapper .tools,
  .ttcb-wrapper .posts,
  .ttcb-wrapper .b2b,
  .ttcb-wrapper .cta-final { padding: 52px 0; }
  .ttcb-wrapper .tutor,
  .ttcb-wrapper .path,
  .ttcb-wrapper .testi,
  .ttcb-wrapper .hsk { padding: 52px 0; }
  .ttcb-wrapper .feat-grid { grid-template-columns: 1fr; gap: 14px; }
  .ttcb-wrapper .feat-card { padding: 22px 18px; }
  .ttcb-wrapper .feat-card h3 { font-size: 16px; }
  .ttcb-wrapper .path-grid { grid-template-columns: 1fr; gap: 12px; }
  .ttcb-wrapper .path-card { padding: 22px 20px; }
  .ttcb-wrapper .path-num { font-size: 32px; top: 14px; right: 16px; }
  .ttcb-wrapper .tutor-grid { grid-template-columns: 1fr; gap: 28px; }
  .ttcb-wrapper .tutor-img img { min-height: 240px; max-height: 280px; }
  .ttcb-wrapper .tutor-float { position: static; margin-top: 12px; padding: 14px 16px; }
  .ttcb-wrapper .tutor-list { gap: 10px; margin: 20px 0 24px; }
  .ttcb-wrapper .tutor-item { padding: 14px; gap: 12px; }
  .ttcb-wrapper .tutor-item h4 { font-size: 14px; }
  .ttcb-wrapper .ti-ico { width: 34px; height: 34px; min-width: 34px; font-size: 16px; }
  .ttcb-wrapper .tools-grid { grid-template-columns: 1fr; gap: 14px; }
  .ttcb-wrapper .tool-top { padding: 20px 18px 14px; }
  .ttcb-wrapper .tool-top h3 { font-size: 16px; }
  .ttcb-wrapper .tool-body { padding: 16px 18px; }
  .ttcb-wrapper .tool-foot { padding: 13px 18px; }
  .ttcb-wrapper .han-grid { gap: 6px; }
  .ttcb-wrapper .han-ch { font-size: 20px; }
  .ttcb-wrapper .vocab-row { padding: 8px 10px; gap: 8px; }
  .ttcb-wrapper .vz { font-size: 18px; white-space: nowrap; }
  .ttcb-wrapper .vp { font-size: 10px; white-space: nowrap; }
  .ttcb-wrapper .vv { font-size: 11.5px; white-space: nowrap; }
  .ttcb-wrapper .pdf-row { padding: 8px 10px; gap: 8px; }
  .ttcb-wrapper .pdf-n { font-size: 12px; line-height: 1.4; }
  .ttcb-wrapper .pdf-s { display: none; }
  .ttcb-wrapper .hsk-track { margin-top: 28px; }
  .ttcb-wrapper .hsk-levels { grid-template-columns: repeat(5,1fr); gap: 6px; margin-bottom: 20px; }
  .ttcb-wrapper .hsk-lv { padding: 10px 2px 8px; border-radius: 8px; }
  .ttcb-wrapper .lv-n { font-size: 17px; }
  .ttcb-wrapper .lv-l { font-size: 8px; letter-spacing: 0; }
  .ttcb-wrapper .hsk-info { grid-template-columns: 1fr 1fr; gap: 10px; }
  .ttcb-wrapper .hsk-info-card { padding: 14px; }
  .ttcb-wrapper .hsk-info-card h4 { font-size: 10px; }
  .ttcb-wrapper .hsk-info-card p { font-size: 13px; }
  .ttcb-wrapper .posts-grid { grid-template-columns: 1fr; gap: 14px; }
  .ttcb-wrapper .post-img img,
  .ttcb-wrapper .post-card.featured .post-img img { height: 180px; }
  .ttcb-wrapper .post-body { padding: 16px 16px 14px; }
  .ttcb-wrapper .post-body h3 { font-size: 15px; }
  .ttcb-wrapper .post-foot { padding: 12px 16px; }
  .ttcb-wrapper .testi-grid { grid-template-columns: 1fr; gap: 12px; }
  .ttcb-wrapper .testi-card { padding: 20px 18px; }
  .ttcb-wrapper .testi-q { font-size: 13.5px; }
  .ttcb-wrapper .b2b-grid { grid-template-columns: 1fr; gap: 28px; }
  .ttcb-wrapper .b2b-img img { min-height: 200px; max-height: 260px; }
  .ttcb-wrapper .b2b-overlay { padding: 20px; }
  .ttcb-wrapper .b2b-overlay blockquote { font-size: 12.5px; }
  .ttcb-wrapper .b2b-logos { grid-template-columns: repeat(3,1fr); gap: 10px 14px; margin-top: 24px; padding-top: 20px; }
  .ttcb-wrapper .b2b-logos img { height: 18px; }
  .ttcb-wrapper .curri-item { font-size: 13.5px; }
  .ttcb-wrapper .cta-inner { grid-template-columns: 1fr; gap: 28px; }
  .ttcb-wrapper .cta-card { padding: 16px 16px 14px; gap: 14px; }
  .ttcb-wrapper .cta-card-ico { width: 40px; height: 40px; min-width: 40px; font-size: 18px; }
  .ttcb-wrapper .cta-card h4 { font-size: 14px; }
  .ttcb-wrapper .cta-card p { font-size: 12.5px; }
  .ttcb-wrapper .contact-form { padding: 22px 16px; border-radius: 14px; }
  .ttcb-wrapper .contact-form h3 { font-size: 18px; }
  .ttcb-wrapper .form-2col { grid-template-columns: 1fr; gap: 0; }
  .ttcb-wrapper .form-row label { font-size: 11px; }
  .ttcb-wrapper .ttcb-btn-navy,
  .ttcb-wrapper .ttcb-btn-red,
  .ttcb-wrapper .ttcb-btn-outline { font-size: 14px; padding: 12px 20px; }
  .ttcb-wrapper .submit-btn { font-size: 14px; padding: 13px; }
}
.ttcb-btn-red,
.ttcb-btn-navy,
.ttcb-btn-ghost,
.ttcb-btn-outline {
  -webkit-text-fill-color: currentColor;
}

.ttcb-btn-ghost {
  -webkit-text-fill-color: rgba(255,255,255,.85);
}