/* Business Growth On Zalo 2026 — growthonzalo.com
   Tông màu: Zalo blue #0068FF + ViHAT cyan #28B8F8 + lime #88C030 */
:root{
  --zalo:#0068FF;
  --zalo-dark:#0047B3;
  --cyan:#28B8F8;
  --lime:#88C030;
  --ink:#0B1A33;
  --ink-2:#3A4B66;
  --muted:#6B7A90;
  --line:#E4EAF2;
  --bg:#FFFFFF;
  --bg-soft:#F4F8FF;
  --bg-deep:#061230;
  --radius:16px;
  --shadow:0 12px 40px rgba(8,28,72,.10);
  --shadow-sm:0 4px 18px rgba(8,28,72,.07);
  --maxw:1160px;
  --grad:linear-gradient(120deg,var(--zalo) 0%,var(--cyan) 100%);
  --grad-lime:linear-gradient(120deg,var(--cyan) 0%,var(--lime) 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;
  -webkit-font-smoothing:antialiased;font-size:16px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:84px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--zalo);background:var(--bg-soft);
  padding:7px 14px;border-radius:999px;border:1px solid var(--line);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--lime)}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em;font-weight:800;color:var(--ink)}
.sec-head{max-width:720px;margin:0 auto 56px;text-align:center}
.sec-head h2{font-size:clamp(28px,4vw,42px);margin:18px 0 14px}
.sec-head p{color:var(--muted);font-size:17px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Logo placeholders — thay bằng file thật (PNG/SVG nền trong suốt) đúng kích thước ghi trên ô */
.logo-ph{display:flex;flex-direction:column;align-items:center;justify-content:center;
  border:2px dashed #4a90d9;border-radius:8px;background:rgba(0,104,255,.06);
  color:var(--muted);text-align:center;gap:1px;padding:2px;overflow:hidden;box-sizing:border-box}
.logo-ph b{font-size:11px !important;color:#2f6db5;font-weight:700;line-height:1.1;letter-spacing:0}
.logo-ph small{font-size:9.5px !important;color:#7a8aa0;font-weight:600;letter-spacing:.02em}
.logo-ph.on-dark{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.1)}
.logo-ph.on-dark b{color:#cfe6ff}.logo-ph.on-dark small{color:rgba(255,255,255,.75)}
/* ô đã có logo thật */
.logo-ph.filled{border:1px solid var(--line);background:#fff;padding:8px}
.logo-ph.filled img{max-width:84%;max-height:80%;width:auto;object-fit:contain;display:block}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:10px;justify-content:center;
  font-weight:700;font-size:16px;padding:15px 28px;border-radius:999px;
  border:none;cursor:pointer;transition:.2s transform,.2s box-shadow;white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(0,104,255,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(0,104,255,.4)}
.btn-ghost{background:#fff;color:var(--zalo);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--zalo);transform:translateY(-2px)}
.btn-lg{padding:17px 34px;font-size:17px}

/* Header */
header.site{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:17px}
.brand .mark{
  width:38px;height:38px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:15px;letter-spacing:-.04em;
}
.brand small{display:block;font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.04em}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{font-size:15px;font-weight:600;color:var(--ink-2);padding:6px 1px;transition:.15s opacity}
.nav-links a:hover{opacity:.6}
.nav-cta{display:flex;align-items:center;gap:14px}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

/* Hero */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:radial-gradient(900px 600px at 80% -10%,rgba(40,184,248,.5),transparent 60%),
             radial-gradient(800px 500px at 0% 100%,rgba(136,192,48,.28),transparent 55%),
             linear-gradient(135deg,#062a7a 0%,#0047B3 45%,#0068FF 100%);
  padding:96px 0 88px;
}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero .eyebrow{color:#fff;background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.25)}
.hero h1{color:#fff;font-size:clamp(30px,4.7vw,54px);font-weight:800;margin:22px 0 18px}
.hero h1 .ln{white-space:nowrap}
.hero h1 .hl{background:linear-gradient(120deg,#9be1ff,#c6f08a);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .slogan{margin:0 0 20px;line-height:1.25}
.hero .slogan b{display:block;font-size:clamp(20px,2.4vw,27px);font-weight:800;
  background:linear-gradient(120deg,#9be1ff,#c6f08a);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:.01em}
.hero .slogan span{display:block;font-size:15.5px;color:rgba(255,255,255,.82);font-style:italic;margin-top:2px}
.hero .lead{font-size:19px;color:rgba(255,255,255,.92);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-cta .btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35)}
.hero-cta .btn-ghost:hover{background:rgba(255,255,255,.2)}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta .item{display:flex;gap:11px;align-items:flex-start;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);border-radius:14px;padding:13px 16px;min-width:200px;flex:1}
.hero-meta .item svg{width:22px;height:22px;flex:none;color:#9be1ff;margin-top:2px}
.hero-meta .item b{display:block;font-size:15px}
.hero-meta .item span{font-size:13px;color:rgba(255,255,255,.78)}

/* Hero card (organizers) */
.hero-card{background:rgba(255,255,255,.97);border-radius:22px;padding:28px;color:var(--ink);box-shadow:0 30px 60px rgba(2,12,40,.35)}
.hero-card h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:6px;font-weight:700}
.org-row{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.org-row:last-child{border-bottom:none}
.org-logo{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#fff;font-size:13px;flex:none}
.org-logo-slot{width:90px;height:60px;display:flex;align-items:center;justify-content:center;flex:none}
.org-logo-slot img{display:block}
.org-row b{font-size:15px;display:block}
.org-row span{font-size:13px;color:var(--muted)}
.award{margin-top:16px;background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;gap:12px;align-items:center}
.award svg{width:30px;height:30px;color:var(--lime);flex:none}
.award b{font-size:14px;display:block}.award span{font-size:12.5px;color:var(--muted);display:block}

/* Stats */
.stats{background:var(--bg-soft)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;text-align:center;box-shadow:var(--shadow-sm)}
.stat .num{font-size:44px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stat .lbl{margin-top:8px;color:var(--ink-2);font-weight:600;font-size:15px}

/* Highlights */
.hl-grid{display:flex;flex-wrap:wrap;gap:22px;justify-content:center}
.hl-card{--b:#0061f2;--a:#e7efff;flex:1 1 calc((100% - 44px)/3);max-width:calc((100% - 44px)/3);position:relative;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff;transition:transform .25s,box-shadow .25s,border-color .25s;box-shadow:var(--shadow-sm)}
.hl-card.hl-c2{--b:#0aa3e6;--a:#e3f6ff}
.hl-card.hl-c3{--b:#dd962c;--a:#fdf1da}
.hl-card.hl-c4{--b:#72ad21;--a:#eef8d9}
.hl-card.hl-c5{--b:#0061f2;--a:#e7efff}
.hl-card.hl-c6{--b:#13aab9;--a:#dff6f8}
.hl-card.hl-c7{--b:#2b6fe6;--a:#e8eeff}
.hl-card.hl-c8{--b:#13a07a;--a:#e0f5ee}
.hl-card h3{font-size:18px;margin:0 0 8px}
.hl-card p{color:var(--muted);font-size:15px;margin:0}
.hl-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(2,32,71,.13);border-color:transparent}
.hl-card.feature{background:var(--grad);color:#fff;border-color:transparent}
.hl-card.feature h3,.hl-card.feature p{color:#fff}
/* Điểm nổi bật: dàn ngang full chiều rộng, giống hàng NTT */
#gioi-thieu .hl-grid{display:flex;flex-direction:column;gap:14px}
#gioi-thieu .hl-card{flex:none;max-width:none;width:100%;min-height:0;flex-direction:row;align-items:center;gap:20px;padding:18px 24px}
#gioi-thieu .hl-ic{flex:0 0 auto;margin-bottom:0;width:56px;height:56px;border-radius:15px;
  background:linear-gradient(140deg,rgba(255,255,255,.32),rgba(255,255,255,0) 62%),var(--b);
  color:#fff;font-size:21px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 12px 22px -9px var(--b)}
#gioi-thieu .hl-card.feature .hl-ic{background:linear-gradient(140deg,rgba(255,255,255,.5),rgba(255,255,255,.14) 62%);color:#fff;box-shadow:none}
#gioi-thieu .hl-body{flex:1;min-width:0}
#gioi-thieu .hl-card h3{margin:0 0 4px}
.hl-card.feature .big{font-weight:800}
/* biểu tượng tròn theo màu từng thẻ */
.hl-ic{width:60px;height:60px;border-radius:16px;background:var(--a);display:grid;place-items:center;margin-bottom:18px;font-size:26px;font-weight:800;line-height:1;color:var(--b)}
.hl-ic svg{width:28px;height:28px;color:var(--b)}
.hl-card.feature .hl-ic{background:rgba(255,255,255,.2);color:#fff}
.hl-card.feature .hl-ic svg{color:#fff}

/* Agenda */
.agenda{
  background:radial-gradient(1000px 720px at 78% -10%,rgba(40,184,248,.55),transparent 58%),
             radial-gradient(820px 560px at 2% 112%,rgba(136,192,48,.30),transparent 55%),
             linear-gradient(150deg,#04113a 0%,#062a7a 42%,#0354cc 100%);
  color:#fff;
}
.agenda .sec-head h2{color:#fff}
.agenda .sec-head p{color:rgba(255,255,255,.8)}
.sess{max-width:980px;margin:0 auto}
.sess-block{margin-bottom:28px}
.sess-title{display:flex;align-items:center;gap:14px;margin:26px 0 14px}
.sess-title .tag{font-size:13px;font-weight:700;letter-spacing:.04em;padding:6px 14px;border-radius:999px;background:#fff;color:var(--zalo)}
.sess-title h3{color:#fff;font-size:20px}
.sess-title .st-main{display:flex;flex-direction:column;gap:2px}
.sess-title .st-main h3{font-size:18px}
.sess-title .st-sub{font-size:13px;font-weight:500;color:rgba(255,255,255,.62)}
.sess-title .time{margin-left:auto;font-size:14px;color:#cfe9ff;font-weight:600}
/* 4 cột: Thời gian · Chủ đề · Keynote · Đơn vị */
.ag-head{display:grid;grid-template-columns:120px minmax(0,1fr) 200px;gap:16px;padding:0 18px 10px;font-size:11.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:rgba(255,255,255,.55)}
.ag-row{display:grid;grid-template-columns:120px minmax(0,1fr) 200px;gap:16px;padding:14px 18px;border-radius:12px;align-items:center;border:1px solid rgba(255,255,255,.13);margin-bottom:8px;background:rgba(255,255,255,.06);transition:background .2s}
/* màu xen kẽ (zebra) cho dễ nhìn */
.ag-row:not(.break):nth-child(odd){background:rgba(255,255,255,.045)}
.ag-row:not(.break):nth-child(even){background:rgba(255,255,255,.12)}
.ag-row:hover{background:rgba(255,255,255,.17)}
.ag-row .t{font-variant-numeric:tabular-nums;font-weight:700;color:#cfe9ff;font-size:14px}
.ag-row .d b{font-size:15.5px;display:block;font-weight:700}
.ag-row .d span{font-size:13px;color:rgba(255,255,255,.66);display:block;margin-top:3px}
.ag-row .kn{font-size:14px;color:#fff}
.ag-row .tbd{color:rgba(255,255,255,.38)}
.ag-org{justify-self:start;display:flex;flex-wrap:wrap;gap:6px}
/* nhiều đơn vị: cho cụm chip rộng ra, căn phải, tràn trái vào vùng chủ đề để hàng không bị cao */
.ag-org.wide{justify-self:end;justify-content:flex-end;width:460px}
.ag-org.w5{width:360px}
.ag-org .chip{display:inline-block;white-space:nowrap;font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;background:rgba(40,184,248,.22);border:1px solid rgba(40,184,248,.55);color:#e3f5ff}
/* ===== Diễn giả — 1 diễn giả / dòng, ảnh lớn bên trái ===== */
.spk-list{display:flex;flex-direction:column;gap:24px}
.spk-card{display:flex;gap:30px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s}
.spk-card:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(2,32,71,.12);border-color:transparent}
.spk-photo{flex:0 0 280px;width:280px;aspect-ratio:4/5;border-radius:14px;background:linear-gradient(150deg,#e7f1ff,#fff);display:grid;place-items:center;color:#7a8aa0;font-size:13px;font-weight:600;text-align:center;overflow:hidden}
.spk-photo img{width:100%;height:100%;object-fit:cover;display:block}
.spk-body{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center}
.spk-name{font-size:23px;margin:0 0 5px}
.spk-role{font-size:15px;color:var(--zalo);font-weight:600;margin:0 0 14px}
.spk-bio{font-size:15px;color:var(--muted);margin:0;line-height:1.65;max-width:680px}
@media(max-width:680px){.spk-card{flex-direction:column;gap:18px}.spk-photo{flex:none;width:100%;max-width:240px;margin:0 auto}.spk-body{text-align:center}.spk-bio{margin:0 auto}}
/* ===== Đối tác — thẻ kiểu blog (ảnh · tiêu đề · CTA) ===== */
.post-slider{position:relative}
.post-grid{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 2px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.post-grid::-webkit-scrollbar{display:none}
.post-nav{position:absolute;top:calc(50% - 22px);width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--zalo);display:grid;place-items:center;cursor:pointer;box-shadow:0 8px 22px rgba(2,32,71,.14);transition:box-shadow .15s,transform .15s,opacity .15s;z-index:2}
.post-nav:hover{box-shadow:0 12px 28px rgba(2,32,71,.2);transform:scale(1.06)}
.post-nav svg{width:20px;height:20px}
.post-nav.prev{left:-14px}
.post-nav.next{right:-14px}
.post-nav[disabled]{opacity:.35;cursor:default;box-shadow:none;transform:none}
@media(max-width:760px){.post-nav{display:none}}
.post-card{flex:0 0 320px;scroll-snap-align:start;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s}
.post-card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(2,32,71,.12);border-color:transparent}
.post-thumb{aspect-ratio:16/9;background:linear-gradient(150deg,#e7f1ff,#fff);border-bottom:1px dashed var(--line);display:grid;place-items:center;color:#7a8aa0;font-size:13px;font-weight:600}
.post-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.post-body{flex:1;display:flex;flex-direction:column;gap:12px;padding:18px 20px 20px}
.post-title{font-size:18px;margin:0}
.post-cta{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--zalo);font-size:14.5px}
.post-cta svg{width:16px;height:16px}
.post-cta:hover{gap:9px}
@media(max-width:560px){.post-card{flex-basis:280px}}
/* ===== Đồng hành truyền thông — lưới logo trống ===== */
.media-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;justify-items:center}
.media-grid .logo-ph{height:52px;width:100%;max-width:140px}
@media(max-width:900px){.media-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:620px){.media-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:420px){.media-grid{grid-template-columns:repeat(2,1fr)}}
/* ===== Lưới đối tác / bài viết (trang riêng) ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-grid .post-card{flex:initial}
.post-desc{font-size:14px;color:var(--muted);margin:0;line-height:1.55}
.post-meta{font-size:12.5px;color:#7a8aa0;font-weight:600;letter-spacing:.02em}
.page-hero{padding:120px 0 10px}
@media(max-width:900px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.card-grid{grid-template-columns:1fr}}
/* ===== Quyền lợi tài trợ ===== */
.ben-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.ben-card{display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 22px;box-shadow:var(--shadow-sm)}
.ben-card.feature{border-color:#bfe6fb;box-shadow:0 16px 44px rgba(40,184,248,.16)}
.ben-tag{align-self:flex-start;display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:6px 14px;border-radius:999px;background:var(--bg-soft);color:var(--zalo)}
.ben-card.feature .ben-tag{background:linear-gradient(120deg,#28B8F8,#0061f2);color:#fff}
.ben-price{font-size:14px;color:var(--muted);margin:0}
.ben-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin:4px 0 0;padding:0;flex:1}
.ben-list li{display:flex;gap:9px;font-size:13.5px;color:var(--ink-2);line-height:1.5}
.ben-list li svg{width:17px;height:17px;color:var(--lime);flex:none;margin-top:2px}
.ben-card .btn{width:100%;margin-top:6px}
@media(max-width:980px){.ben-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.ben-grid{grid-template-columns:1fr}}
.ag-org .tbd{font-size:14px}
.ag-row.break{grid-template-columns:120px 1fr;background:transparent;border-style:dashed;border-color:rgba(255,255,255,.2)}
.ag-row.break .d b{color:rgba(255,255,255,.82);font-weight:600}

/* Tickets teaser / brands / logos */
.logos{background:var(--bg-soft)}
.logo-grid{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.logo-chip{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 26px;font-weight:700;color:var(--ink-2);font-size:16px;box-shadow:var(--shadow-sm);min-width:150px;text-align:center}
.logo-note{text-align:center;color:var(--muted);font-size:13.5px;margin-top:22px}

/* Tier cards */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.tier{border:1.5px solid var(--line);border-radius:20px;padding:30px 26px;background:#fff;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);position:relative}
.tier.pop{border-color:var(--zalo);box-shadow:0 18px 44px rgba(0,104,255,.18)}
.tier .ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12.5px;font-weight:700;padding:6px 16px;border-radius:999px;white-space:nowrap}
.tier h3{font-size:21px}
.tier .price{font-size:40px;font-weight:800;margin:10px 0 2px;color:var(--ink)}
.tier .price small{font-size:16px;color:var(--muted);font-weight:600}
.tier .sub{font-size:13.5px;color:var(--muted);margin-bottom:20px;min-height:20px}
.tier ul{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:24px;flex:1}
.tier li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);align-items:flex-start}
.tier li svg{width:18px;height:18px;color:var(--lime);flex:none;margin-top:3px}
.tier li.vip svg{color:var(--zalo)}
.tier.pop li svg{color:var(--zalo)}
.tier .btn{width:100%}

/* CTA band */
.cta-band{background:var(--grad);color:#fff;text-align:center}
.cta-band h2{color:#fff;font-size:clamp(28px,4vw,40px);margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.92);font-size:18px;max-width:600px;margin:0 auto 28px}
.cta-band .btn-primary{background:#fff;color:var(--zalo)}
.cta-band .btn-primary:hover{background:#f4f8ff}

/* Footer */
footer.site{background:var(--bg-deep);color:rgba(255,255,255,.78);padding:64px 0 32px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1.3fr;gap:40px;margin-bottom:40px}
footer.site h5{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.foot-grid a{display:block;color:rgba(255,255,255,.72);font-size:14.5px;padding:5px 0}
.foot-grid a:hover{color:#fff}
.foot-contact div{font-size:14.5px;margin-bottom:12px}
.foot-contact b{color:#fff;display:block;font-size:14px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13.5px;color:rgba(255,255,255,.6)}

/* ===== Đặt chỗ page ===== */
.page-hero{background:linear-gradient(135deg,#0047B3,#0068FF);color:#fff;padding:64px 0;text-align:center}
.page-hero h1{color:#fff;font-size:clamp(30px,4.4vw,48px);margin:16px 0 12px}
.page-hero p{color:rgba(255,255,255,.9);font-size:18px;max-width:620px;margin:0 auto}
.book-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:start}
.note-pill{display:inline-flex;gap:8px;align-items:center;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:13.5px;color:var(--ink-2);font-weight:600;margin-bottom:18px}
.note-pill svg{width:16px;height:16px;color:var(--lime)}
.order-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow);position:sticky;top:96px}
.order-box h3{font-size:19px;margin-bottom:6px}
.qty-row{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line)}
.qty-row .info b{font-size:15px;display:block}
.qty-row .info span{font-size:13px;color:var(--muted)}
.stepper{display:flex;align-items:center;gap:12px}
.stepper button{width:32px;height:32px;border-radius:9px;border:1.5px solid var(--line);background:#fff;font-size:18px;font-weight:700;cursor:pointer;color:var(--zalo);line-height:1}
.stepper button:hover{border-color:var(--zalo)}
.stepper .n{min-width:24px;text-align:center;font-weight:700}
.order-total{display:flex;justify-content:space-between;align-items:baseline;margin:18px 0;font-size:15px}
.order-total .grand{font-size:26px;font-weight:800;color:var(--zalo)}
.discount-line{display:flex;justify-content:space-between;font-size:14px;color:var(--lime);font-weight:600;margin-bottom:6px}
.form-field{margin-bottom:14px}
.form-field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.form-field input{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:11px;font-size:15px;font-family:inherit}
.form-field input:focus{outline:none;border-color:var(--zalo)}
.pay-note{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:14px;font-size:13px;color:var(--muted);margin-top:14px;display:flex;gap:10px}
.pay-note svg{width:18px;height:18px;color:var(--zalo);flex:none}

@media (max-width:920px){
  .hero-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .tiers{grid-template-columns:1fr}
  .hl-card{flex-basis:100%;max-width:100%}
  .book-grid{grid-template-columns:1fr}
  .order-box{position:static}
  .foot-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:720px){
  section{padding:60px 0}
  .nav-links{display:none}
  .burger{display:block}
  .hero-meta .item{min-width:100%}
  .ag-head{display:none}
  .ag-row,.ag-row.break{grid-template-columns:1fr;gap:6px}
  .ag-row .kn.tbd{display:none}
  .ag-org{justify-self:start;margin-top:2px}
  .ag-org.wide{width:auto;justify-self:start;justify-content:flex-start}
  .sess-title .time{display:none}
}
/* chặn tràn ngang do hình trang trí nền (orb) trên màn hình hẹp */
html,body{overflow-x:clip}
/* màn hình hẹp: thu nhỏ tiêu đề để tên chương trình (khoá 1 dòng) không tràn ngang */
@media (max-width:480px){
  .sec-head h2{font-size:clamp(20px,5.4vw,28px)}
}

/* ===================== PREMIUM v3 ===================== */
.hero{padding:112px 0 96px;
  background:radial-gradient(1000px 720px at 78% -10%,rgba(40,184,248,.55),transparent 58%),
             radial-gradient(820px 560px at 2% 112%,rgba(136,192,48,.30),transparent 55%),
             linear-gradient(150deg,#04113a 0%,#062a7a 42%,#0354cc 100%)}
.hero-bg{position:absolute;inset:0;overflow:hidden;z-index:1}
.hero-bg .orb{position:absolute;border-radius:50%;filter:blur(64px);opacity:.5;animation:float 15s ease-in-out infinite}
.hero-bg .o1{width:440px;height:440px;background:#28B8F8;top:-130px;right:5%}
.hero-bg .o2{width:380px;height:380px;background:#88C030;bottom:-150px;left:-70px;animation-delay:-5s}
.hero-bg .o3{width:300px;height:300px;background:#1f7bff;top:28%;left:38%;opacity:.35;animation-delay:-9s}
.hero-bg .dots{position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.11) 1.2px,transparent 1.2px);background-size:28px 28px;
  -webkit-mask-image:radial-gradient(1100px 680px at 68% 32%,#000,transparent 76%);
          mask-image:radial-gradient(1100px 680px at 68% 32%,#000,transparent 76%)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-26px)}}
.hero h1 .hl{background:linear-gradient(100deg,#9be1ff,#c6f08a,#9be1ff);background-size:220% auto;
  -webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 6.5s linear infinite}
@keyframes shine{to{background-position:220% center}}

.countdown{display:flex;gap:12px;margin:6px 0 26px;flex-wrap:wrap}
.cd-item{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:14px;
  padding:12px 4px;min-width:76px;text-align:center;backdrop-filter:blur(8px)}
.cd-item b{display:block;font-size:30px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1}
.cd-item span{font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.72);margin-top:5px;display:block}

.hero-card{backdrop-filter:blur(12px);animation:float 17s ease-in-out infinite}

.btn-primary{position:relative;overflow:hidden}
.btn-primary>*{position:relative;z-index:1}
.btn-primary::after{content:"";position:absolute;top:0;left:-130%;width:55%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);animation:sweep 5s ease-in-out infinite}
@keyframes sweep{0%,55%{left:-130%}100%{left:170%}}

.stat,.hl-card,.tier{transition:transform .25s ease,box-shadow .25s ease}
.stat:hover{transform:translateY(-5px);box-shadow:var(--shadow)}

.anim .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.anim .reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .hero-bg .orb,.hero-card,.btn-primary::after,.hero h1 .hl{animation:none}
  .anim .reveal{transition:none;opacity:1;transform:none}
}
@media (max-width:720px){.cd-item{min-width:64px}.cd-item b{font-size:24px}}

/* ===== Nút + popup video ===== */
.btn-video{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.4)}
.btn-video:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-video .play{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#fff;color:var(--zalo);position:relative;margin-right:2px}
.btn-video .play svg{width:12px;height:12px;margin-left:1px}
.btn-video .play::before{content:"";position:absolute;inset:-5px;border-radius:50%;border:2px solid rgba(255,255,255,.55);animation:pulse 2s ease-out infinite}
@keyframes pulse{0%{transform:scale(.85);opacity:.85}100%{transform:scale(1.55);opacity:0}}
.vid-modal{position:fixed;inset:0;z-index:200;background:rgba(4,12,40,.86);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;padding:24px}
.vid-modal.open{display:flex}
.vid-box{position:relative;width:min(920px,100%)}
.vid-frame{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.55)}
.vid-frame iframe,.vid-frame video{width:100%;height:100%;border:0;display:block}
.vid-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#9fb3d4;font-size:16px;text-align:center;padding:24px;background:linear-gradient(135deg,#0a1f4d,#0354cc)}
.vid-close{position:absolute;top:-46px;right:0;background:none;border:none;color:#fff;font-size:32px;cursor:pointer;line-height:1}

/* ===== Thẻ đơn vị tổ chức (bản mới: logo nền trắng + badge sang + điểm nổi bật) ===== */
.hero-card .org-row{display:flex;align-items:center;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}
.org-logo-box{background:#fff;border:1px solid var(--line);border-radius:12px;width:154px;height:58px;
  display:flex;align-items:center;justify-content:center;padding:9px 14px;flex:none;box-shadow:0 3px 12px rgba(8,28,72,.06)}
.org-logo-box img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.role-badge{display:inline-flex;align-items:center;gap:7px;font-size:11px;font-weight:700;
  letter-spacing:.09em;text-transform:uppercase;padding:7px 13px;border-radius:999px}
.role-badge .rb-dot{width:6px;height:6px;border-radius:50%}
.role-badge.btc{background:var(--grad);color:#fff;box-shadow:0 6px 16px rgba(0,104,255,.28)}
.role-badge.btc .rb-dot{background:#c6f08a}
.role-badge.cot{background:var(--bg-soft);color:var(--zalo);border:1px solid #d4e4fb}
.role-badge.cot .rb-dot{background:var(--zalo)}
.card-creds{margin-top:16px;display:flex;flex-direction:column;gap:11px}
.cred{display:flex;gap:11px;align-items:center}
.cred .ci{width:34px;height:34px;border-radius:10px;background:var(--bg-soft);display:grid;place-items:center;flex:none}
.cred .ci svg{width:18px;height:18px;color:var(--zalo)}
.cred.star .ci{background:rgba(136,192,48,.14)} .cred.star .ci svg{color:var(--lime)}
.cred b{font-size:13.5px;display:block;color:var(--ink);line-height:1.25}
.cred span{font-size:12px;color:var(--muted)}

/* ===== Logo đơn vị tổ chức TO hơn (override) ===== */
.hero-card .org-row{display:block;padding:16px 0;border-bottom:1px solid var(--line)}
.hero-card .org-row:last-of-type{border-bottom:none}
.hero-card .org-logo-box{width:100%;height:94px;padding:16px 24px;border-radius:14px;margin:0}
.hero-card .org-logo-box img{max-width:280px;max-height:62px;width:auto;height:auto}
.hero-card .role-badge{margin-top:12px}

/* ===== Mỗi đơn vị 1 khối: logo + badge + năng lực RIÊNG ===== */
.org-block{padding:18px 0;border-bottom:1px solid var(--line)}
.org-block:last-child{border-bottom:none;padding-bottom:0}
.org-block .role-badge{margin:12px 0}
.org-points{list-style:none;display:flex;flex-direction:column;gap:8px;margin:0}
.org-points li{display:flex;gap:9px;font-size:12.5px;color:var(--ink-2);align-items:flex-start;line-height:1.35}
.org-points li svg{width:16px;height:16px;flex:none;margin-top:2px;color:var(--lime)}
.org-block.zalo .org-points li svg{color:var(--zalo)}

/* ===== 3 nút hero bằng nhau ===== */
.hero-cta{display:flex;gap:13px;flex-wrap:wrap}
.hero-cta .btn{flex:1 1 0;min-width:172px}
@media (max-width:520px){.hero-cta .btn{flex:1 1 100%}}

/* ===== Badge vai trò — bản premium (nổi khối, không lõm) ===== */
.role-badge{display:inline-flex;align-items:center;gap:9px;font-size:11px;font-weight:800;
  letter-spacing:.16em;text-transform:uppercase;padding:10px 20px;border-radius:999px;line-height:1;border:none}
.role-badge .rb-dot{width:6px;height:6px;border-radius:50%}
.role-badge.btc{background:linear-gradient(180deg,#2e93ff 0%,#0061f2 100%);color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.45), 0 10px 22px -10px rgba(0,82,204,.6)}
.role-badge.btc .rb-dot{background:#c6f08a;box-shadow:0 0 0 3px rgba(198,240,138,.3)}
.role-badge.cot{background:#fff;color:#0061f2;border:1.5px solid #cfe0fb;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.9), 0 8px 18px -10px rgba(0,82,204,.35)}
.role-badge.cot .rb-dot{background:#0061f2;box-shadow:0 0 0 3px rgba(0,104,255,.14)}

/* ===== Tinh chỉnh thẻ tổ chức: đường kẻ tiêu đề, logo to, nút map ===== */
.hero-card h4{border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:6px}
.hero-card .org-logo-box{height:96px}
.hero-card .org-logo-box img{max-width:300px;max-height:62px}
.map-link{display:flex;width:fit-content;align-items:center;gap:6px;margin-top:8px;
  font-size:12.5px;font-weight:700;color:#0061f2}
.map-link svg{width:14px;height:14px}
.map-link:hover{text-decoration:underline}
.hero-meta .item .map-link{color:#0061f2}

/* ===== Logo căn trái + dải dọc vai trò (luxury navy + metallic) ===== */
.hero-card .org-logo-box{position:relative;justify-content:flex-start;padding:14px 60px 14px 26px;overflow:hidden}
.hero-card .org-logo-box img{max-width:208px;max-height:60px;margin:0}
.vtab{position:absolute;top:0;right:0;height:100%;width:48px;display:flex;align-items:center;justify-content:center;
  writing-mode:vertical-rl;font-size:10.5px;font-weight:800;letter-spacing:.22em;text-transform:uppercase;
  box-shadow:inset 1px 0 0 rgba(255,255,255,.08)}
.vtab-btc{background:linear-gradient(180deg,#0e3585 0%,#061a45 100%);color:#E7C56B}
.vtab-cot{background:linear-gradient(180deg,#13397f 0%,#0a2350 100%);color:#CBD8EC}

/* ===== Cân 2 ô meta (ngày / địa điểm) ===== */
.hero-meta{align-items:stretch}
.hero-meta .item{align-items:center}
.hero-meta .item:first-child{flex:0.82 1 0}
.hero-meta .item:last-child{flex:1.18 1 0}

/* ===== Ngày giờ cạnh đồng hồ ===== */
.cd-wrap{display:flex;align-items:stretch;gap:18px;flex-wrap:wrap;margin:6px 0 26px}
.cd-wrap .countdown{margin:0}
.cd-date{display:flex;flex-direction:column;justify-content:center;padding-left:18px;border-left:1px solid rgba(255,255,255,.22)}
.cd-date .lbl{font-size:10.5px;text-transform:uppercase;letter-spacing:.12em;color:#9be1ff;font-weight:700;margin-bottom:5px}
.cd-date b{font-size:21px;font-weight:800;color:#fff;line-height:1}
.cd-date>span{font-size:13px;color:rgba(255,255,255,.82);margin-top:4px}

/* ===== Ô địa chỉ + nút map icon ===== */
.hero-meta .item.venue{flex:0 1 auto;max-width:520px}
.map-pin{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);color:#fff;margin-left:8px;vertical-align:-6px;transition:.15s}
.map-pin svg{width:13px;height:13px}
.map-pin:hover{background:#0061f2;border-color:#0061f2}

/* ===== Vương miện trong dải dọc ===== */
.hero-card .org-logo-box{height:112px}
.vtab{writing-mode:horizontal-tb;flex-direction:column;gap:8px;padding:11px 0}
.vtab .crown{width:18px;height:16px;flex:none}
.vtab .vtxt{writing-mode:vertical-rl;font-size:10px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;line-height:1}

/* ===== Dải dọc "Đường đi" ở ô địa chỉ ===== */
.hero-meta .item.venue{position:relative;overflow:hidden;padding-right:62px}
.dir-tab{position:absolute;top:0;right:0;height:100%;width:50px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:7px;text-decoration:none;
  background:linear-gradient(180deg,#28B8F8 0%,#0061f2 100%);color:#fff;transition:.15s filter}
.dir-tab:hover{filter:brightness(1.08)}
.dir-tab svg{width:15px;height:15px;flex:none}
.dir-tab .vtxt2{writing-mode:vertical-rl;font-size:10.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;line-height:1}

/* ===== Fix chữ "Đường đi" dọc không vỡ ===== */
.hero-meta .item.venue{min-height:92px;align-items:center}
.dir-tab .vtxt2{white-space:nowrap;font-size:10px;letter-spacing:.1em}
.dir-tab{gap:6px}
.dir-tab svg{width:14px;height:14px}

/* ===== Đường đi: giữ chiều cao gốc, thu nhỏ chữ, bỏ icon ===== */
.hero-meta .item.venue{min-height:0}
.dir-tab svg{display:none}
.dir-tab .vtxt2{white-space:nowrap;font-size:8.5px;letter-spacing:.08em}

/* ===== Đường đi: chữ thường ===== */
.dir-tab .vtxt2{text-transform:none;font-size:11px;letter-spacing:.02em;font-weight:700}

/* ===== Đường đi: chỉ còn icon ===== */
.dir-tab .vtxt2{display:none}
.dir-tab svg{display:block;width:20px;height:20px}

/* ===== Mũi tên tăng trưởng (lớp sau thẻ tổ chức) ===== */
.growth-deco{position:absolute;top:54px;right:0;width:min(520px,44%);z-index:1;pointer-events:none}
.growth-deco svg{width:100%;height:auto;filter:drop-shadow(0 8px 24px rgba(40,184,248,.4));opacity:.92}
.gd-tip{position:absolute;top:18px;right:24px;display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);backdrop-filter:blur(8px);
  padding:8px 13px;border-radius:12px;box-shadow:0 12px 30px rgba(0,40,120,.4)}
.gd-tip b{color:#c6f08a;font-size:20px;font-weight:800;line-height:1}
.gd-tip b span{font-size:13px}
.gd-zalo{background:#0068FF;color:#fff;font-weight:800;font-size:12px;padding:5px 8px;border-radius:8px}
@media(max-width:920px){.growth-deco{display:none}}

/* ===== Mũi tên đỏ bám góc dưới-phải thẻ tổ chức (override) ===== */
.hero-card{position:relative}
.growth-deco{position:absolute;top:auto;left:auto;right:-116px;bottom:-14px;width:196px;height:auto;z-index:6;pointer-events:none}
.growth-deco svg{width:100%;height:auto;filter:drop-shadow(0 6px 16px rgba(216,30,44,.42));opacity:1}
.growth-deco .gd-zalo{position:absolute;left:-6px;bottom:-6px;width:52px;height:52px;border-radius:13px;overflow:hidden;
  background:#fff;box-shadow:0 8px 18px rgba(0,40,120,.28);display:flex;align-items:center;justify-content:center;padding:6px}
.growth-deco .gd-zalo img{width:100%;height:auto;object-fit:contain;display:block}
.gd-num{position:absolute;top:-10px;right:-12px;background:linear-gradient(180deg,#FF5A5A,#D81E2C);color:#fff;
  font-weight:800;font-size:16px;line-height:1;padding:7px 12px;border-radius:999px;box-shadow:0 8px 20px rgba(216,30,44,.5)}
.gd-num span{font-size:11px}
@media(max-width:920px){.growth-deco{display:none}}

/* ===== Logo Zalo (đã cắt viền) to hơn trong chip ===== */
.growth-deco .gd-zalo{width:56px;height:56px;padding:5px;border-radius:14px}
.growth-deco .gd-zalo img{width:100%;height:100%;object-fit:contain}

/* ===== 78M+ chữ trần, không khung ===== */
.gd-num{background:none;box-shadow:none;padding:0;border-radius:0;color:#fff;font-size:22px;font-weight:800;
  text-shadow:0 2px 10px rgba(0,0,0,.4);top:-16px;right:-4px}
.gd-num span{font-size:13px;color:#FF7A7A}

/* ===== Khoảng cách logo ↔ text mô tả ===== */
.org-points{margin-top:15px}

/* ===== Section bảng giá trang chủ ===== */
.tiers-2{grid-template-columns:1fr 1fr}
.early-flag,.group-flag{display:block;font-size:13px;font-weight:600;padding:9px 13px;border-radius:10px;line-height:1.35}
.early-flag{background:#eafaf0;border:1px solid #c9ecd6;color:#258a4f;margin-bottom:14px}
.early-flag b{color:#1f9d57}
.group-flag{background:#eef4ff;border:1px solid #d4e4fb;color:#2a5bb5;margin-top:2px}
.group-flag b{color:var(--zalo)}
@media(max-width:760px){.tiers-2{grid-template-columns:1fr}}

/* Early Bird flag chuyển xuống đáy thẻ */
.early-flag{margin:2px 0 0}

/* ===== Badge số vé còn lại (góc phải thẻ) ===== */
.seat-badge{position:absolute;top:16px;right:16px;display:inline-flex;align-items:center;gap:7px;
  background:#fff4e8;border:1px solid #ffd9a8;color:#c2691a;font-size:11.5px;font-weight:700;
  padding:6px 11px;border-radius:999px;z-index:2}
.seat-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:#ff8a00;box-shadow:0 0 0 3px rgba(255,138,0,.18)}

/* ===== Layout cân: 2 thẻ trên, form ngang dưới ===== */
.tiers-center{max-width:760px;margin:0 auto 32px}
.order-wide{position:static;max-width:940px;margin:0 auto;display:grid;grid-template-columns:1fr 1.15fr;gap:34px;align-items:start;top:auto}
.order-wide .ob-col>h3{font-size:18px;margin-bottom:14px}
.order-wide .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media(max-width:760px){.order-wide{grid-template-columns:1fr;gap:20px}.order-wide .form-grid{grid-template-columns:1fr}}

/* ===== Ô mã giảm giá ===== */
.promo-row{display:flex;gap:10px;margin-top:18px}
.promo-row input{flex:1;min-width:0;padding:12px 14px;border:1.5px solid var(--line);border-radius:11px;font-size:14.5px;font-family:inherit}
.promo-row input:focus{outline:none;border-color:var(--zalo)}
.promo-row button{padding:0 18px;border:1.5px solid var(--zalo);background:#fff;color:var(--zalo);border-radius:11px;font-weight:700;font-size:14px;cursor:pointer;white-space:nowrap}
.promo-row button:hover{background:var(--bg-soft)}

/* ===== Trường câu hỏi diễn giả (full width + textarea) ===== */
.form-grid .full{grid-column:1 / -1}
.form-field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:11px;font-size:15px;font-family:inherit;resize:vertical;min-height:52px;line-height:1.5}
.form-field textarea:focus{outline:none;border-color:var(--zalo)}
.form-field .opt{font-weight:500;color:var(--muted);font-size:12.5px}

/* ===== Section Đồng hành & Nhà tài trợ ===== */
.sponsors{background:var(--bg-soft)}
.spon-feature{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:44px}
/* ----- Bậc thang tài trợ (3 bậc đầu: Tổ chức / Đồng tổ chức / Kim cương) ----- */
.spon-rank{margin-bottom:14px}
.rank-row{display:flex;align-items:center;gap:24px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm);margin-bottom:14px;box-sizing:border-box;padding:18px 28px}
.rank-row.diamond{border-color:#bfe6fb;background:linear-gradient(135deg,#eef8ff,#fff 62%);box-shadow:0 14px 40px rgba(40,184,248,.15)}
/* cột nhãn + cột logo cố định bề rộng để 3 hàng thẳng cột, căn trái */
.rank-label{flex:0 0 auto;width:215px;display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;font-size:13px;white-space:nowrap}
.rank-ic{flex:0 0 auto;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px}
.rank-ic svg{display:block;width:18px;height:18px}
.rank-row.btc .rank-ic{background:linear-gradient(180deg,#0e3585,#061a45);color:#E7C56B}
.rank-row.btc .rank-label{color:#0e3585}
.rank-row.cot .rank-ic{background:#eef4ff;color:#0061f2;border:1px solid #d4e4fb}
.rank-row.cot .rank-label{color:#0061f2}
.rank-row.diamond .rank-ic{background:linear-gradient(120deg,#28B8F8,#0061f2);color:#fff}
.rank-row.diamond .rank-label{color:#0061f2}
.rank-logo{flex:0 0 auto;width:210px;display:flex;align-items:center;justify-content:flex-start}
.rank-logo img{width:auto;object-fit:contain}
.rank-desc{flex:1;min-width:180px;font-size:14px;color:var(--muted);line-height:1.55;margin:0;text-align:justify;text-justify:inter-word}
.rank-row .spon-cta{flex:0 0 auto;white-space:nowrap}
.rank-row .spon-cta svg{width:22px;height:22px}
/* nhỏ dần theo thứ hạng — chiều cao thẻ cố định, cả 3 đều cao hơn hàng Vàng (101px) */
.rank-row.tier-1{min-height:140px}
.rank-row.tier-1 .rank-logo img{max-height:74px;max-width:205px}
.rank-row.tier-2{min-height:124px}
.rank-row.tier-2 .rank-logo img{max-height:58px;max-width:205px}
.rank-row.tier-3{min-height:110px}
.rank-row.tier-3 .rank-logo img{max-height:66px;max-width:160px}
.rank-row.tier-3 .rank-desc{font-size:13.5px}
@media(max-width:820px){.rank-row{flex-wrap:wrap;gap:14px}.rank-label{width:100%}.rank-desc{order:4;flex:1 1 100%}.rank-logo{width:auto}}
.spon-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 24px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;box-shadow:var(--shadow-sm)}
.spon-card.diamond{border-color:#bfe6fb;box-shadow:0 16px 44px rgba(40,184,248,.16)}
.spon-badge{display:inline-flex;align-items:center;gap:7px;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:7px 14px;border-radius:999px}
.spon-badge svg{width:15px;height:15px}
.spon-card.btc .spon-badge{background:linear-gradient(180deg,#0e3585,#061a45);color:#E7C56B}
.spon-card.cot .spon-badge{background:#eef4ff;color:#0061f2;border:1px solid #d4e4fb}
.spon-card.cot .spon-badge svg{color:#9AA7B8}
.spon-badge.diamond{background:linear-gradient(120deg,#28B8F8,#0061f2);color:#fff}
.spon-logo{height:66px;display:flex;align-items:center;justify-content:center;margin:2px 0}
.spon-logo img{max-height:56px;max-width:210px;width:auto;object-fit:contain}
.spon-card p{font-size:14px;color:var(--muted);line-height:1.55;flex:1;margin:0}
.spon-cta{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--zalo);font-size:14.5px}
.spon-cta svg{width:16px;height:16px}
.spon-cta:hover{gap:9px}
.spon-row{display:flex;align-items:center;gap:26px;padding:20px 0 20px 29px;border-top:1px solid var(--line);flex-wrap:wrap}
.spon-tier-label{font-size:13px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;min-width:200px;display:flex;align-items:center;gap:11px}
.medal-ic{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;color:#fff}
.medal-ic svg{width:18px;height:18px}
.spon-tier-label.gold{color:#b5832a}.spon-tier-label.gold .medal-ic{background:linear-gradient(135deg,#f4d98b,#c9a24b)}
.spon-tier-label.silver{color:#6b7888}.spon-tier-label.silver .medal-ic{background:linear-gradient(135deg,#cfd7e2,#9aa7b8)}
.spon-tier-label.bronze{color:#8a5026}.spon-tier-label.bronze .medal-ic{background:linear-gradient(135deg,#d6a06a,#a9683a)}
.spon-logos{display:flex;flex-wrap:wrap;gap:14px;flex:1}
@media(max-width:860px){.spon-feature{grid-template-columns:1fr}.spon-row{flex-direction:column;align-items:flex-start;gap:12px}}

/* ===== Bảng so sánh quyền lợi tài trợ ===== */
.ben-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm);background:#fff}
.ben-table{width:100%;border-collapse:collapse;min-width:840px}
.ben-table th,.ben-table td{padding:13px 14px;text-align:center;border-bottom:1px solid var(--line);font-size:13.5px;vertical-align:middle}
.ben-table thead th{font-weight:800;color:var(--ink);background:#f3f8ff;border-bottom:2px solid var(--line)}
.ben-table thead th span{display:block;font-size:11px;font-weight:600;color:var(--muted);margin-top:3px}
.ben-table thead th.bt-kc{color:var(--zalo)}
.ben-table th.bt-h,.ben-table td:first-child{text-align:left;min-width:300px;color:var(--ink-2);font-weight:600}
.ben-table tbody tr:hover{background:#f8fbff}
.ben-table tr.grp td{background:var(--bg-soft);text-align:left;font-weight:800;color:var(--zalo);font-size:12.5px;text-transform:uppercase;letter-spacing:.04em}

.ben-table .bx{display:inline-flex;align-items:center;justify-content:center}
.ben-table .bx.yes{color:var(--lime)}
.ben-table .bx.yes svg{width:19px;height:19px}
.ben-table .bx.no{color:#c5cedb;font-weight:700}
.ben-table .bx.tx{font-size:12px;font-weight:600;color:var(--ink-2);line-height:1.35}

/* ===== Form đăng ký tài trợ ===== */
.reg-grid{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:start;text-align:left}
.reg-info p{color:rgba(255,255,255,.85);margin:12px 0 20px;max-width:440px}
.reg-contact{list-style:none;display:flex;flex-direction:column;gap:14px;margin:0;padding:0}
.reg-contact li{display:flex;gap:12px;color:#fff}
.reg-contact li svg{width:20px;height:20px;flex:none;margin-top:2px;color:#cfe9ff}
.reg-contact li b{display:block;font-size:14.5px;margin-bottom:2px}
.reg-contact li div{font-size:13.5px;color:rgba(255,255,255,.82)}
.reg-form{background:#fff;border-radius:18px;padding:24px;box-shadow:0 22px 54px rgba(2,12,40,.28);display:flex;flex-direction:column;gap:12px}
.rf-row{display:flex;flex-direction:column;gap:5px}
.rf-row label{font-size:13px;font-weight:600;color:var(--ink-2)}
.rf-row label i{color:#e2483d;font-style:normal}
.rf-row input,.rf-row select,.rf-row textarea{font-family:inherit;font-size:14px;padding:11px 13px;border:1.5px solid var(--line);border-radius:11px;background:#fff;color:var(--ink);outline:none;transition:.15s border-color;width:100%;box-sizing:border-box}
.rf-row input:focus,.rf-row select:focus,.rf-row textarea:focus{border-color:var(--zalo)}
.rf-row textarea{resize:vertical}
.rf-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.rf-note{font-size:12.5px;color:var(--muted);text-align:center;margin:2px 0 0}
.rf-note a{color:var(--zalo);font-weight:700}
@media(max-width:840px){.reg-grid{grid-template-columns:1fr;gap:26px}.rf-2{grid-template-columns:1fr}}

/* màu từng hạng cột bảng quyền lợi */
.ben-table thead th.bt-kc{color:#0061f2;background:rgba(0,97,242,.10)}
.ben-table thead th.bt-gold{color:#b5832a;background:rgba(201,162,75,.16)}
.ben-table thead th.bt-silver{color:#5f6b7d;background:rgba(154,167,184,.18)}
.ben-table thead th.bt-bronze{color:#a9683a;background:rgba(169,104,58,.15)}
.ben-table td:nth-child(2){background:rgba(0,97,242,.045)}
.ben-table td:nth-child(3){background:rgba(201,162,75,.07)}
.ben-table td:nth-child(4){background:rgba(154,167,184,.08)}
.ben-table td:nth-child(5){background:rgba(169,104,58,.06)}

/* tiêu đề khối đăng ký tài trợ — gọn, không rớt dòng vô duyên */
.reg-info h2{font-size:clamp(23px,2.3vw,30px);line-height:1.25;margin:0 0 12px}
.reg-info p{line-height:1.55;font-size:15px}

/* ===== Nút mạng xã hội footer ===== */
.foot-social{display:flex;gap:10px;margin-top:18px}
.foot-social a{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:#fff;transition:transform .15s,opacity .15s}
.foot-social a:hover{transform:translateY(-2px);opacity:.92}
.foot-social a svg{width:22px;height:22px}
.foot-social .fb{background:#1877F2}
.foot-social .zalo{background:#0068FF}
.foot-social .yt{background:#FF0000}

/* logo đơn vị tổ chức trong khối đăng ký */
.reg-org{margin-top:24px}
.reg-org>span{display:block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.72);margin-bottom:9px}
.reg-org .reg-org-logo{display:inline-flex;background:#fff;border-radius:12px;padding:10px 18px;box-shadow:0 8px 22px rgba(2,12,40,.18)}
.reg-org-logo img{height:36px;width:auto;display:block}

/* logo Zalo chính thức trong nút mạng xã hội */
.foot-social .zalo{background:#0068FF}
.foot-social .zalo img{width:26px;height:26px;display:block}

/* ===== Hero trang con trên nền xanh ===== */
.page-hero .eyebrow{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.32);color:#fff}
.page-hero .hl-lime{color:#c8f37a}
/* ===== Thẻ bài viết blog ===== */
.post-thumb{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#e8f2ff,#d4e8ff);border-bottom:none;overflow:hidden}
.post-thumb::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 16%,rgba(40,184,248,.30),transparent 58%)}
.post-cat{position:absolute;top:12px;left:12px;z-index:1;font-size:11px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;padding:5px 11px;border-radius:999px;color:#fff}
.cat-news{background:#0068FF}
.cat-view{background:#28B8F8}
.cat-case{background:#6fae1f}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:4px}
.post-foot .post-cta{margin-top:0}
.post-date{font-size:12.5px;color:#8a99ad;font-weight:600}

/* ===================== TRANG ĐỐI TÁC v2 ===================== */
.page-hero.partner-hero{padding:90px 0 64px;
  background:radial-gradient(900px 560px at 80% -20%,rgba(40,184,248,.5),transparent 60%),
             radial-gradient(700px 460px at 0% 120%,rgba(136,192,48,.26),transparent 55%),
             linear-gradient(140deg,#04113a 0%,#0047B3 50%,#0068FF 100%)}
.partner-hero .sec-head{margin-bottom:0}
.partner-hero .eyebrow{color:#fff;background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.28)}
.partner-hero .sec-head h2{color:#fff}
.partner-hero .sec-head h2 .grad-text{background:linear-gradient(120deg,#9be1ff,#c6f08a);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.partner-hero .sec-head p{color:rgba(255,255,255,.88)}
.pt-group{margin-bottom:48px}
.pt-group:last-of-type{margin-bottom:0}
.pt-group-head{display:flex;align-items:center;gap:14px;margin:0 0 24px}
.pt-group-head .ic{width:42px;height:42px;border-radius:12px;flex:none;display:grid;place-items:center;
  background:var(--grad);color:#fff;box-shadow:0 10px 22px -9px rgba(0,104,255,.6)}
.pt-group-head .ic svg{width:22px;height:22px}
.pt-group-head.lime .ic{background:var(--grad-lime);box-shadow:0 10px 22px -9px rgba(136,192,48,.55)}
.pt-group-head h3{font-size:20px;margin:0}
.pt-group-head span{display:block;font-size:13.5px;color:var(--muted);font-weight:500;margin-top:2px}
.pt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pt-grid.feat{grid-template-columns:repeat(2,1fr)}
.pt-card{display:flex;flex-direction:column;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:18px;padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s,border-color .25s}
.pt-card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(2,32,71,.12);border-color:transparent}
.pt-card.feature{border-color:#bfe6fb;background:linear-gradient(150deg,#f4faff,#fff 60%);box-shadow:0 16px 44px rgba(40,184,248,.14)}
.pt-logo{height:96px;border-radius:14px;background:var(--bg-soft);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;padding:16px}
.pt-card.feature .pt-logo{background:#fff}
.pt-logo img{max-width:80%;max-height:62px;width:auto;object-fit:contain;display:block}
.pt-logo .logo-ph{width:100%;height:100%;border-radius:10px}
.pt-tag{align-self:flex-start;display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:800;
  letter-spacing:.05em;text-transform:uppercase;padding:6px 13px;border-radius:999px;background:var(--bg-soft);color:var(--zalo)}
.pt-tag.lime{color:#5d8a18;background:rgba(136,192,48,.13)}
.pt-name{font-size:18.5px;margin:0;line-height:1.25}
.pt-desc{font-size:14px;color:var(--muted);margin:0;line-height:1.6;flex:1}
.pt-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--zalo);font-size:14.5px}
.pt-link svg{width:16px;height:16px;transition:transform .15s}
.pt-link:hover svg{transform:translateX(3px)}
@media(max-width:900px){.pt-grid,.pt-grid.feat{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.pt-grid,.pt-grid.feat{grid-template-columns:1fr}}