/* =========================================================
   Vietnam Tech Summit 2026 — style.css
   Phong cách: sự kiện công nghệ, nền chàm sẫm (deep indigo) + đỏ san hô
   (hot coral) + xanh cyan điện, blob gradient mờ có hạt nhiễu (grain).
   Chữ display "Unbounded" (rộng, chữ hoa), chữ thân "DM Sans".
   Bố cục khác các mẫu trước:
     - Thanh TIẾN ĐỘ CUỘN mỏng ở mép trên cùng
     - Header trong suốt → đặc khi cuộn (JS), wordmark có huy hiệu năm,
       nút "Mua vé" hình viên thuốc kèm BỘ ĐẾM VÉ CÒN LẠI
     - Hero: NGÀY THÁNG CỠ KHỔNG LỒ xếp chồng tiêu đề, ĐẾM NGƯỢC thật (JS),
       3 viên thuốc thông tin nhanh, ảnh hero cắt clip-path đa giác bên phải
       + nút play aftermovie, MARQUEE tên diễn giả chạy sát mép dưới
     - Diễn giả: thẻ DUOTONE (phủ coral/cyan bằng mix-blend-mode, bỏ khi hover)
     - Chương trình: TAB NGÀY (JS) + lịch cột giờ, mỗi phiên có NHÃN MÀU SÂN
       KHẤU (Main / Product / Workshop) + chip lọc theo sân khấu
     - Vé: 3 hạng, giá gốc gạch ngang, ghi chú early-bird; form tính tổng (JS)
     - Nhà tài trợ: logo chữ theo hạng Kim cương / Vàng / Bạc, cỡ khác nhau
     - Dải ảnh năm trước + nhận xét, FAQ, footer
   Ảnh: mỗi khối ảnh dùng biến --img trên thẻ HTML (đường dẫn ../images/…).
   ========================================================= */

:root{
  --bg:#12123A;
  --bg-2:#0D0D2E;
  --bg-3:#1A1A4A;
  --ink:#FFFFFF;
  --text:#D9DAF0;
  --muted:#9C9EC8;
  --line:rgba(255,255,255,.12);
  --line-2:rgba(255,255,255,.22);
  --coral:#FF4D6D;
  --coral-deep:#E7365A;
  --cyan:#3DF2E0;
  --cyan-deep:#20C9B8;
  --amber:#FFC85C;
  --main:#FF4D6D;
  --product:#3DF2E0;
  --workshop:#FFC85C;
  --grad:linear-gradient(110deg,#FF4D6D 0%,#3DF2E0 100%);
  --radius:14px;
  --radius-lg:24px;
  --shadow:0 20px 60px rgba(0,0,0,.35);
  --ph:linear-gradient(135deg,#2A2A6E 0%,#1A1A4A 50%,#3A2A5E 100%);
  --font-display:'Unbounded',system-ui,sans-serif;
  --font-body:'DM Sans',system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--text);background:var(--bg);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;position:relative}
/* Hạt nhiễu (grain) toàn trang */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.12;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E")}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
img{max-width:100%;display:block}
svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ph{background:var(--img,var(--ph)) center/cover no-repeat,var(--ph)}
.container{width:min(1200px,92%);margin:0 auto;position:relative;z-index:1}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.1;color:var(--ink);letter-spacing:-.01em}
h3,h4{font-weight:600}
b,strong{font-weight:600;color:var(--ink)}
.tx-coral{color:var(--coral)}
.tx-cyan{color:var(--cyan)}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Blob gradient nền */
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.45;pointer-events:none;z-index:0}
.blob--coral{background:var(--coral)}
.blob--cyan{background:var(--cyan)}

/* ---------- Nút ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:999px;font-weight:600;font-size:15px;transition:.2s;white-space:nowrap;border:1.5px solid transparent}
.btn svg{width:16px;height:16px}
.btn--coral{background:var(--coral);color:#fff;box-shadow:0 10px 30px rgba(255,77,109,.35)}
.btn--coral:hover{background:var(--coral-deep);transform:translateY(-2px)}
.btn--cyan{background:var(--cyan);color:var(--bg-2)}
.btn--cyan:hover{background:var(--cyan-deep);transform:translateY(-2px)}
.btn--line{border-color:var(--line-2);color:var(--ink);background:rgba(255,255,255,.04)}
.btn--line:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--sm{padding:9px 16px;font-size:13.5px}
.btn--lg{padding:16px 32px;font-size:16px}

/* ---------- Thanh tiến độ cuộn ---------- */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:100;transition:width .1s linear}

/* ---------- Header ---------- */
.header{position:fixed;top:0;left:0;right:0;z-index:90;transition:.3s;border-bottom:1px solid transparent}
.header.is-solid{background:rgba(13,13,46,.88);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.header__in{display:flex;align-items:center;gap:28px;min-height:76px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.02em;text-transform:uppercase}
.logo em{font-style:normal;color:var(--coral)}
.logo__year{font-family:var(--font-body);font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px;background:var(--cyan);color:var(--bg-2);letter-spacing:.06em}
.nav{display:flex;gap:4px;margin:0 auto}
.nav__link{padding:8px 14px;border-radius:999px;font-weight:500;font-size:14.5px;color:var(--text);transition:.2s}
.nav__link:hover,.nav__link.is-active{color:var(--ink);background:rgba(255,255,255,.08)}
.header__cta{display:flex;gap:10px;align-items:center;margin-left:auto}
.ticket-pill{display:inline-flex;align-items:center;gap:0;border-radius:999px;background:var(--coral);color:#fff;font-weight:700;font-size:14.5px;overflow:hidden;box-shadow:0 10px 30px rgba(255,77,109,.35);transition:.2s}
.ticket-pill:hover{transform:translateY(-2px)}
.ticket-pill span{padding:11px 18px}
.ticket-pill small{padding:11px 14px;background:rgba(0,0,0,.28);font-size:12.5px;font-weight:500;display:flex;align-items:center;gap:6px}
.ticket-pill small i{width:7px;height:7px;border-radius:50%;background:var(--cyan);animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.3}}
.burger{display:none;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.08);place-items:center}

/* ---------- Hero ---------- */
.hero{position:relative;padding:150px 0 0;min-height:min(100vh,880px);display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}
.hero .blob--coral{width:520px;height:520px;left:-160px;top:-100px}
.hero .blob--cyan{width:460px;height:460px;right:10%;bottom:10%;opacity:.3}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero__kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:22px}
.hero__kicker::before{content:"";width:28px;height:2px;background:var(--cyan)}
.hero__date{font-family:var(--font-display);font-weight:800;font-size:clamp(46px,5.6vw,82px);line-height:.95;color:var(--ink);letter-spacing:-.03em;display:flex;flex-wrap:wrap;align-items:baseline;gap:0 .12em}
.hero__date .sep{color:var(--coral);font-weight:300}
.hero__date .yr{font-size:.42em;color:var(--cyan);font-weight:600;letter-spacing:.02em}
.hero h1{font-size:clamp(24px,3vw,40px);margin:16px 0 18px;font-weight:600;line-height:1.2;max-width:620px}
.hero h1 span{color:var(--coral)}
.hero p.lead{font-size:17px;color:var(--muted);max-width:540px}
.hero__cta{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.facts{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.fact{display:inline-flex;align-items:center;gap:8px;padding:8px 14px 8px 10px;border-radius:999px;border:1px solid var(--line-2);background:rgba(255,255,255,.04);font-size:13.5px;font-weight:500}
.fact b{font-family:var(--font-display);font-size:14px;font-weight:700;color:var(--cyan)}
.fact svg{width:15px;height:15px;color:var(--coral)}

/* Đếm ngược */
.count{display:flex;gap:10px;margin-top:34px;flex-wrap:wrap}
.count div{min-width:86px;padding:14px 12px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--line);text-align:center;backdrop-filter:blur(6px)}
.count b{display:block;font-family:var(--font-display);font-size:30px;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.count span{display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:8px}

/* Ảnh hero cắt đa giác */
.hero__art{position:relative;aspect-ratio:.9;min-height:420px}
.hero__art .ph{position:absolute;inset:0;clip-path:polygon(18% 0,100% 0,100% 62%,82% 100%,0 100%,0 40%);filter:saturate(1.1)}
.hero__art::before{content:"";position:absolute;inset:0;clip-path:polygon(18% 0,100% 0,100% 62%,82% 100%,0 100%,0 40%);background:linear-gradient(160deg,rgba(255,77,109,.35),rgba(61,242,224,.25));z-index:1;mix-blend-mode:screen;pointer-events:none}
.hero__art::after{content:"";position:absolute;inset:-14px -14px auto auto;width:130px;height:130px;border:2px solid var(--cyan);border-radius:50%;opacity:.5;z-index:0}
.play{position:absolute;left:8%;bottom:8%;z-index:2;display:flex;align-items:center;gap:14px;color:var(--ink);font-weight:600;font-size:14px}
.play i{width:64px;height:64px;border-radius:50%;background:var(--ink);color:var(--bg-2);display:grid;place-items:center;box-shadow:0 0 0 0 rgba(255,255,255,.4);animation:pulse 2s infinite}
.play i svg{width:22px;height:22px;fill:currentColor;stroke:none;margin-left:3px}
@keyframes pulse{70%{box-shadow:0 0 0 18px rgba(255,255,255,0)}100%{box-shadow:0 0 0 0 rgba(255,255,255,0)}}
.play small{display:block;font-weight:400;color:var(--muted);font-size:12.5px}
.hero__tag{position:absolute;top:8%;left:0;z-index:2;background:var(--coral);color:#fff;font-family:var(--font-display);font-size:12px;padding:8px 14px;border-radius:8px;transform:rotate(-6deg)}

/* Marquee tên diễn giả */
.marquee{margin-top:60px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(13,13,46,.6);overflow:hidden;white-space:nowrap;position:relative;z-index:1}
.marquee__track{display:inline-flex;gap:0;animation:marquee 40s linear infinite;padding:16px 0}
.marquee__track span{font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--ink);padding:0 28px;display:inline-flex;align-items:center;gap:28px;letter-spacing:.02em}
.marquee__track span::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--coral)}
.marquee__track span:nth-child(even)::after{background:var(--cyan)}
.marquee__track em{font-style:normal;font-family:var(--font-body);color:var(--muted);font-weight:400;font-size:13px;margin-left:8px}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- Section ---------- */
.section{padding:100px 0;position:relative}
.section--dark{background:var(--bg-2)}
.section--soft{background:var(--bg-3)}
.section__head{margin-bottom:50px;display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.section__head--center{justify-content:center;text-align:center;flex-direction:column;align-items:center;gap:0}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--coral);margin-bottom:14px}
.kicker::before{content:"";width:22px;height:2px;background:var(--coral)}
.section__head--center .kicker::before{display:none}
.section__title{font-size:clamp(28px,3.6vw,46px);max-width:700px}
.section__head p{color:var(--muted);margin-top:14px;font-size:16.5px;max-width:520px}
.section__head .btn{flex:none}

/* ---------- Diễn giả duotone ---------- */
.spk-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.spk{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-3);border:1px solid var(--line);transition:.3s}
.spk:hover{transform:translateY(-6px);border-color:var(--line-2);box-shadow:var(--shadow)}
.spk__img{position:relative;aspect-ratio:1;overflow:hidden}
.spk__img .ph{position:absolute;inset:0;filter:grayscale(1) contrast(1.15);transition:.4s}
.spk__img::before{content:"";position:absolute;inset:0;background:var(--coral);mix-blend-mode:multiply;z-index:1;transition:.4s}
.spk__img::after{content:"";position:absolute;inset:0;background:var(--cyan);mix-blend-mode:lighten;opacity:.55;z-index:2;transition:.4s}
.spk--cyan .spk__img::before{background:var(--cyan)}
.spk--cyan .spk__img::after{background:var(--coral);opacity:.4}
.spk:hover .spk__img .ph{filter:none}
.spk:hover .spk__img::before,.spk:hover .spk__img::after{opacity:0}
.spk__track{position:absolute;top:14px;left:14px;z-index:3;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;background:var(--bg-2);color:var(--cyan);padding:5px 10px;border-radius:6px}
.spk__body{padding:20px 22px 24px}
.spk__body h3{font-size:16px;margin-bottom:4px}
.spk__role{font-size:13px;color:var(--muted);display:block}
.spk__talk{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);font-size:13.5px;color:var(--text);line-height:1.5}
.spk__talk::before{content:"Bài nói";display:block;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--coral);font-weight:700;margin-bottom:4px}
.spk--soon{display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:40px 24px;min-height:320px;border-style:dashed;background:transparent}
.spk--soon .q{width:64px;height:64px;border-radius:50%;border:2px dashed var(--line-2);display:grid;place-items:center;font-family:var(--font-display);font-size:26px;color:var(--muted);margin-bottom:18px}
.spk--soon h3{font-size:15px;color:var(--muted)}
.spk--soon p{font-size:13.5px;color:var(--muted);margin-top:8px}
.spk--soon:hover{transform:none;box-shadow:none}

/* Lọc theo track / sân khấu — chip */
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:8px 16px;border-radius:999px;border:1px solid var(--line-2);font-size:13.5px;font-weight:600;color:var(--text);transition:.2s;display:inline-flex;align-items:center;gap:8px}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.is-active{background:var(--ink);color:var(--bg-2);border-color:var(--ink)}
.chip i{width:9px;height:9px;border-radius:50%;background:var(--muted)}
.chip[data-stage="main"] i{background:var(--main)}
.chip[data-stage="product"] i{background:var(--product)}
.chip[data-stage="workshop"] i{background:var(--workshop)}

/* ---------- Chương trình: tab ngày + lịch ---------- */
.tabs{display:inline-flex;gap:6px;padding:6px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line)}
.tab{padding:11px 22px;border-radius:999px;font-weight:600;font-size:14.5px;color:var(--muted);display:flex;flex-direction:column;align-items:flex-start;line-height:1.2;transition:.2s}
.tab small{font-size:11.5px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;opacity:.8}
.tab.is-active{background:var(--coral);color:#fff}
.agenda__bar{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:36px}
.day{display:none}
.day.is-active{display:block}
.sched{border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:120px 1fr auto;gap:24px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:.2s;position:relative}
.row:hover{background:rgba(255,255,255,.03)}
.row.is-hidden{display:none}
.row__time{font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.row__time small{display:block;font-family:var(--font-body);font-size:12px;color:var(--muted);font-weight:400}
.row__main h3{font-size:17px;font-family:var(--font-body);font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.row__main p{font-size:14px;color:var(--muted);margin-top:4px}
.row__main p b{color:var(--text);font-weight:500}
.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-body);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:4px 10px;border-radius:6px;background:rgba(255,255,255,.08);color:var(--muted);white-space:nowrap}
.tag::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.tag--main{background:rgba(255,77,109,.15);color:var(--main)}
.tag--product{background:rgba(61,242,224,.12);color:var(--product)}
.tag--workshop{background:rgba(255,200,92,.14);color:var(--workshop)}
.tag--break{background:rgba(255,255,255,.06);color:var(--muted)}
.row--break{padding:14px 0;background:repeating-linear-gradient(-45deg,rgba(255,255,255,.02) 0 8px,transparent 8px 16px)}
.row--break .row__main h3{font-size:14px;font-weight:600;color:var(--muted)}
.row__side{display:flex;flex-direction:column;align-items:flex-end;gap:8px;min-width:150px}
.row__side .btn{padding:8px 14px;font-size:12.5px}
.cap{width:150px;font-size:11.5px;color:var(--muted)}
.cap__bar{height:6px;border-radius:3px;background:rgba(255,255,255,.1);margin-top:5px;overflow:hidden}
.cap__bar span{display:block;height:100%;background:var(--workshop);border-radius:3px}
.cap__bar span.is-full{background:var(--coral)}
.stage-legend{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--muted)}

/* ---------- Vé ---------- */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.tier{background:var(--bg-3);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;display:flex;flex-direction:column;position:relative;overflow:hidden}
.tier--hot{border:2px solid transparent;background:linear-gradient(var(--bg-3),var(--bg-3)) padding-box,var(--grad) border-box}
.tier--hot::before{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:var(--cyan);filter:blur(90px);opacity:.18;right:-80px;top:-80px;pointer-events:none}
.tier__tag{position:absolute;top:18px;right:18px;background:var(--cyan);color:var(--bg-2);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:5px 10px;border-radius:6px}
.tier h3{font-size:20px}
.tier .desc{color:var(--muted);font-size:14px;margin-top:6px}
.tier__price{margin:24px 0 2px;display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.tier__price b{font-family:var(--font-display);font-size:34px;color:var(--ink);line-height:1;font-weight:700}
.tier__price s{color:var(--muted);font-size:15px;text-decoration:line-through;text-decoration-color:var(--coral);text-decoration-thickness:2px}
.tier .per{color:var(--muted);font-size:13px}
.tier .eb{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:12.5px;color:var(--amber);font-weight:600}
.tier .eb svg{width:14px;height:14px}
.tier ul{list-style:none;display:grid;gap:10px;margin:24px 0 28px;font-size:14.5px}
.tier li{display:flex;gap:9px;align-items:flex-start}
.tier li svg{width:17px;height:17px;color:var(--cyan);margin-top:3px}
.tier li.off{color:var(--muted)}
.tier li.off svg{color:var(--line-2)}
.tier .btn{margin-top:auto;width:100%}
.eb-note{margin-top:26px;text-align:center;font-size:14px;color:var(--muted)}
.eb-note b{color:var(--amber)}

/* Bảng so sánh */
.cmp{width:100%;border-collapse:collapse;font-size:14.5px;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line)}
.cmp th,.cmp td{padding:14px 18px;text-align:center;border-bottom:1px solid var(--line)}
.cmp th{background:rgba(255,255,255,.05);font-family:var(--font-display);font-size:13px;font-weight:600;color:var(--ink)}
.cmp td:first-child,.cmp th:first-child{text-align:left}
.cmp td:first-child{color:var(--text);font-weight:500}
.cmp tr:last-child td{border-bottom:0}
.cmp .ok{color:var(--cyan);font-weight:700}
.cmp .no{color:var(--muted);opacity:.5}
.table-wrap{overflow-x:auto}

/* ---------- Form ---------- */
.form{background:var(--bg-3);border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px}
.form__grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field--full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{border:1.5px solid var(--line-2);border-radius:10px;padding:12px 14px;font:inherit;outline:none;background:rgba(255,255,255,.04);color:var(--ink);transition:.2s}
.field select option{background:var(--bg-2);color:var(--ink)}
.field input::placeholder{color:var(--muted)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,242,224,.15)}
.field textarea{min-height:100px;resize:vertical}
.field small{color:var(--muted);font-size:12px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text)}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--coral)}
.summary{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;position:sticky;top:100px}
.summary h3{font-size:16px;margin-bottom:18px}
.summary .line{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.summary .line span:last-child{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}
.summary .line--disc span:last-child{color:var(--cyan)}
.summary .total{display:flex;justify-content:space-between;align-items:baseline;padding-top:18px}
.summary .total b{font-family:var(--font-display);font-size:28px;color:var(--ink);font-variant-numeric:tabular-nums}
.summary .total em{font-style:normal;color:var(--muted);font-size:13px}
.summary .btn{width:100%;margin-top:20px}
.summary p{font-size:12.5px;color:var(--muted);margin-top:14px}
.two-col{display:grid;grid-template-columns:1.4fr .8fr;gap:30px;align-items:start}

/* ---------- Địa điểm ---------- */
.venue{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:stretch}
.venue__photo{border-radius:var(--radius-lg);overflow:hidden;position:relative;min-height:420px}
.venue__photo .ph{position:absolute;inset:0}
.venue__photo .cap-box{position:absolute;left:22px;bottom:22px;right:22px;background:rgba(13,13,46,.85);backdrop-filter:blur(10px);border:1px solid var(--line-2);border-radius:14px;padding:16px 20px}
.venue__photo .cap-box b{display:block;font-family:var(--font-display);font-size:14px}
.venue__photo .cap-box span{font-size:13.5px;color:var(--muted)}
.map{border-radius:var(--radius-lg);border:1px solid var(--line);position:relative;overflow:hidden;min-height:260px;background:
  linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px) 0 0/40px 40px,
  linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px) 0 0/40px 40px,var(--bg-2)}
.map::before{content:"";position:absolute;left:-10%;right:-10%;top:40%;height:30px;background:rgba(61,242,224,.12);transform:rotate(-8deg)}
.map::after{content:"";position:absolute;left:55%;top:-10%;bottom:-10%;width:22px;background:rgba(255,255,255,.06);transform:rotate(18deg)}
.map__pin{position:absolute;left:50%;top:46%;transform:translate(-50%,-100%);z-index:1;text-align:center}
.map__pin i{display:block;width:22px;height:22px;border-radius:50% 50% 50% 0;background:var(--coral);transform:rotate(-45deg);margin:0 auto;box-shadow:0 0 0 8px rgba(255,77,109,.2)}
.map__pin b{display:block;margin-top:10px;font-size:12.5px;background:var(--bg-2);padding:6px 12px;border-radius:8px;border:1px solid var(--line-2);white-space:nowrap}
.map__btn{position:absolute;right:16px;bottom:16px;z-index:1}
.tips{display:grid;gap:12px;margin-top:20px}
.tip{display:flex;gap:14px;padding:16px 18px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid var(--line)}
.tip .ic{width:40px;height:40px;border-radius:10px;background:rgba(61,242,224,.12);color:var(--cyan);display:grid;place-items:center;flex:none}
.tip b{display:block;font-size:14.5px}
.tip span{font-size:13.5px;color:var(--muted)}

/* Sơ đồ tầng */
.floor{border-radius:var(--radius-lg);border:1px solid var(--line);background:var(--bg-2);padding:30px;position:relative;min-height:440px;display:grid;grid-template-columns:2fr 1fr;grid-template-rows:1fr 1fr 60px;gap:14px}
.floor__box{border:2px dashed var(--line-2);border-radius:14px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:20px;font-size:13px;color:var(--muted);position:relative}
.floor__box b{font-family:var(--font-display);font-size:15px;margin-bottom:6px}
.floor__box--main{grid-row:1/3;border-style:solid;border-color:var(--main);background:rgba(255,77,109,.08)}
.floor__box--main b{color:var(--main)}
.floor__box--product{border-style:solid;border-color:var(--product);background:rgba(61,242,224,.06)}
.floor__box--product b{color:var(--product)}
.floor__box--workshop{border-style:solid;border-color:var(--workshop);background:rgba(255,200,92,.06)}
.floor__box--workshop b{color:var(--workshop)}
.floor__box--lobby{grid-column:1/-1}
.floor__lbl{position:absolute;top:-12px;left:16px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;background:var(--bg-2);padding:2px 8px;color:var(--muted)}

/* Bảng khách sạn */
.tbl{width:100%;border-collapse:collapse;font-size:14.5px}
.tbl th,.tbl td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl th{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700}
.tbl td b{font-weight:600}
.tbl .code{font-family:monospace;background:rgba(61,242,224,.12);color:var(--cyan);padding:2px 8px;border-radius:6px;font-size:13px}

/* ---------- Nhà tài trợ ---------- */
.spon{display:grid;gap:36px}
.spon__tier{display:grid;grid-template-columns:160px 1fr;gap:24px;align-items:center;padding-top:28px;border-top:1px solid var(--line)}
.spon__tier h3{font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-family:var(--font-body);font-weight:700;color:var(--muted);display:flex;align-items:center;gap:10px}
.spon__tier h3 i{width:10px;height:10px;border-radius:2px;transform:rotate(45deg)}
.spon__tier--d h3 i{background:var(--cyan)}.spon__tier--g h3 i{background:var(--amber)}.spon__tier--s h3 i{background:#C7C9D9}
.spon__logos{display:flex;flex-wrap:wrap;gap:14px}
.slogo{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03);font-family:var(--font-display);font-weight:700;color:var(--ink);letter-spacing:-.01em;transition:.2s}
.slogo:hover{border-color:var(--cyan);color:var(--cyan)}
.spon__tier--d .slogo{padding:30px 40px;font-size:24px;min-width:240px}
.spon__tier--g .slogo{padding:20px 28px;font-size:17px;min-width:180px}
.spon__tier--s .slogo{padding:14px 20px;font-size:13.5px;color:var(--muted);min-width:130px}
.slogo em{font-style:normal;color:var(--coral)}

/* ---------- Năm trước: dải ảnh + nhận xét ---------- */
.strip{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:16px;height:340px}
.strip .ph{border-radius:var(--radius-lg);height:100%;position:relative;overflow:hidden}
.strip .ph span{position:absolute;left:16px;bottom:14px;font-size:12px;font-weight:600;background:rgba(13,13,46,.75);padding:5px 10px;border-radius:6px;backdrop-filter:blur(6px)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.stat{padding:22px 0;border-top:2px solid var(--line-2)}
.stat b{display:block;font-family:var(--font-display);font-size:40px;line-height:1;color:var(--ink)}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--muted)}
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px}
.quote{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;position:relative}
.quote::before{content:"“";position:absolute;top:8px;right:22px;font-family:var(--font-display);font-size:70px;line-height:1;color:var(--coral);opacity:.4}
.quote p{font-size:15px;color:var(--text)}
.quote__who{display:flex;align-items:center;gap:12px;margin-top:20px}
.quote__who i{width:42px;height:42px;border-radius:50%;background:var(--grad);display:grid;place-items:center;font-style:normal;font-family:var(--font-display);font-size:13px;color:var(--bg-2);font-weight:700}
.quote__who b{display:block;font-size:14px}
.quote__who small{color:var(--muted);font-size:12.5px}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin-inline:auto}
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;font-weight:600;color:var(--ink);font-size:16.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary span{width:32px;height:32px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--cyan);font-size:20px;flex:none;transition:.2s}
.faq details[open] summary span{transform:rotate(45deg);background:var(--cyan);color:var(--bg-2)}
.faq p{color:var(--muted);margin-top:12px;font-size:15px;max-width:680px}

/* ---------- CTA cuối ---------- */
.cta{border-radius:var(--radius-lg);position:relative;overflow:hidden;padding:70px 60px;text-align:center;background:var(--bg-3);border:1px solid var(--line-2)}
.cta .blob--coral{width:400px;height:400px;left:-100px;top:-150px}
.cta .blob--cyan{width:400px;height:400px;right:-100px;bottom:-150px}
.cta h2{font-size:clamp(26px,3.4vw,42px);position:relative;z-index:1}
.cta p{color:var(--muted);margin:14px auto 28px;max-width:540px;position:relative;z-index:1}
.cta .btn{position:relative;z-index:1}

/* ---------- Trang con ---------- */
.pagehead{padding:150px 0 60px;position:relative;overflow:hidden}
.pagehead .blob--coral{width:460px;height:460px;left:-150px;top:-120px;opacity:.35}
.pagehead .blob--cyan{width:380px;height:380px;right:-80px;top:-60px;opacity:.25}
.pagehead h1{font-size:clamp(34px,5vw,64px);margin-top:10px}
.pagehead p{color:var(--muted);max-width:620px;margin:18px 0 0;font-size:17px}
.pagehead__meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.crumb{font-size:13px;color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb span{margin:0 8px;opacity:.5}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);padding:70px 0 0;background:var(--bg-2);position:relative;z-index:1}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:30px}
.footer__col p{color:var(--muted);font-size:14px;margin-top:16px;max-width:300px}
.footer__col h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-family:var(--font-body);font-weight:700;color:var(--muted);margin-bottom:16px}
.footer__col a{display:block;padding:5px 0;font-size:14.5px;color:var(--text)}
.footer__col a:hover{color:var(--cyan)}
.footer__news{display:flex;gap:8px;margin-top:12px}
.footer__news input{flex:1;min-width:0;border:1.5px solid var(--line-2);border-radius:999px;padding:10px 16px;background:rgba(255,255,255,.04);color:var(--ink);font:inherit;font-size:14px;outline:none}
.footer__news input:focus{border-color:var(--cyan)}
.footer__bar{margin-top:50px;border-top:1px solid var(--line);padding:20px 0;font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .spk-grid{grid-template-columns:repeat(3,1fr)}
  .hero__grid{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
  .strip{grid-template-columns:1fr 1fr;height:auto}
  .strip .ph{aspect-ratio:4/3}
  .strip .ph:first-child{grid-column:1/-1;aspect-ratio:21/9}
}
@media (max-width:980px){
  .nav{display:none}
  .nav.is-open{display:flex;position:fixed;inset:76px 0 auto 0;flex-direction:column;background:var(--bg-2);border-bottom:1px solid var(--line);padding:14px 4% 22px;z-index:95;margin:0}
  .nav.is-open .nav__link{padding:13px 14px}
  .header{background:rgba(13,13,46,.88);backdrop-filter:blur(14px)}
  .burger{display:grid}
  .ticket-pill small{display:none}
  .hero{padding-top:110px;min-height:0}
  .hero__grid{grid-template-columns:1fr;gap:30px}
  .hero__art{min-height:340px;aspect-ratio:1.3}
  .spk-grid,.tiers,.quotes{grid-template-columns:1fr 1fr}
  .venue,.two-col{grid-template-columns:1fr}
  .summary{position:static}
  .spon__tier{grid-template-columns:1fr;gap:14px}
  .stats{grid-template-columns:1fr 1fr}
  .row{grid-template-columns:90px 1fr;gap:14px}
  .row__side{grid-column:2;flex-direction:row;align-items:center;justify-content:flex-start;flex-wrap:wrap}
  .floor{grid-template-columns:1fr;grid-template-rows:auto;min-height:0}
  .floor__box{min-height:120px}
  .floor__box--main{grid-row:auto;min-height:180px}
}
@media (max-width:640px){
  .section{padding:64px 0}
  .pagehead{padding:120px 0 40px}
  .spk-grid,.tiers,.quotes,.form__grid,.stats,.footer__grid,.strip{grid-template-columns:1fr}
  .strip .ph:first-child{grid-column:auto;aspect-ratio:16/9}
  .count div{min-width:0;flex:1;padding:12px 6px}
  .count b{font-size:22px}
  .count{gap:6px}
  .hero__date{font-size:clamp(40px,12vw,56px)}
  .cta{padding:44px 24px}
  .form{padding:24px}
  .header__in{min-height:66px}
  .nav.is-open{inset:66px 0 auto 0}
  .ticket-pill span{padding:10px 14px;font-size:13.5px}
  .marquee{margin-top:40px}
  .row__time{font-size:13px}
  .section__head{margin-bottom:34px}
}