/* Hải Lưu Design – landing page */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:#fff;background:#1c241f;line-height:1.4;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
svg{width:1em;height:1em}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}
:focus-visible{outline:2px solid #fff;outline-offset:3px}

/* ---------- Nền video ---------- */
.bg{position:fixed;inset:0;z-index:-1;background-color:#2b3a31;background-size:cover;background-position:center;overflow:hidden}
.bg video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .8s ease}
.bg video.on{opacity:1}
.veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,calc(var(--overlay) * .6)) 0%,rgba(0,0,0,var(--overlay)) 45%,rgba(0,0,0,calc(var(--overlay) + .2)) 100%)}

/* ---------- Cột nội dung ---------- */
.col{width:100%;max-width:560px;margin:0 auto;padding:8px 16px calc(40px + env(safe-area-inset-bottom))}
.topbar{width:100%;max-width:560px;margin:0 auto;padding:calc(16px + env(safe-area-inset-top)) 16px 0;display:flex;justify-content:space-between;align-items:center}
.tools{display:flex;gap:8px}
.pill,.round{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.16);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);cursor:pointer;color:#fff;
  transition:background .2s,transform .2s}
.pill{height:34px;padding:0 14px;border-radius:17px;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.pill svg{font-size:14px}
.round{width:38px;height:38px;border-radius:50%;font-size:17px;text-decoration:none}
.pill:hover,.round:hover{background:rgba(255,255,255,.28);transform:translateY(-1px)}

/* ---------- Hồ sơ ---------- */
.profile{text-align:center;padding:18px 0 22px}
.avatar{width:96px;height:96px;border-radius:50%;object-fit:cover;margin:0 auto;border:3px solid rgba(255,255,255,.9);box-shadow:0 8px 24px rgba(0,0,0,.35)}
.avatar.sm{width:64px;height:64px}
.profile h1{margin:14px 0 4px;font-size:24px;font-weight:700;letter-spacing:.01em;text-shadow:0 2px 12px rgba(0,0,0,.45)}
.bio{margin:0 auto 8px;max-width:420px;font-size:15px;opacity:.92;text-shadow:0 1px 8px rgba(0,0,0,.5)}
.socials{display:flex;justify-content:center;gap:6px;margin-top:10px}
.socials a{display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;border-radius:50%;font-size:22px;
  filter:drop-shadow(0 2px 6px rgba(0,0,0,.4));transition:transform .2s,background .2s}
.socials a:hover{transform:translateY(-2px) scale(1.06);background:rgba(255,255,255,.14)}

/* ---------- Khối chung ---------- */
.block{margin:0 0 18px}
.block h2{font-size:18px;font-weight:600;margin:0 0 4px;text-align:center}

/* ---------- Ảnh ---------- */
.gallery figure{margin:0}
.gallery img{width:100%;border-radius:17px;object-fit:cover;background:rgba(255,255,255,.08)}
.gallery figcaption{font-size:13px;opacity:.85;margin-top:6px;text-align:center}
.single img{height:auto}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid img{aspect-ratio:1/1}
.carousel{position:relative}
.track{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;border-radius:17px;overscroll-behavior-x:contain}
.track::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:center}
.carousel img{aspect-ratio:var(--ratio,3/4)}
.nav{position:absolute;top:50%;transform:translateY(-50%);width:38px;height:38px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(0,0,0,.4);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;font-size:18px;opacity:0;transition:opacity .2s}
.prev{left:10px}.next{right:10px}
.carousel:hover .nav,.nav:focus-visible{opacity:1}
.nav[disabled]{opacity:0!important;pointer-events:none}
.dots{display:flex;justify-content:center;gap:6px;margin-top:10px}
.dots button{width:7px;height:7px;padding:0;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer;transition:width .25s,background .25s}
.dots button[aria-current="true"]{width:20px;border-radius:4px;background:#fff}

/* ---------- Thẻ link ---------- */
.links{display:flex;flex-direction:column;gap:12px}
.link-card{display:flex;align-items:center;gap:12px;min-height:65px;padding:8px 14px 8px 8px;border-radius:17px;text-decoration:none;
  background:var(--card);border:2px solid transparent;box-shadow:0 6px 18px rgba(0,0,0,.18);transition:transform .2s,border-color .2s,box-shadow .2s}
.link-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.55);box-shadow:0 10px 26px rgba(0,0,0,.28)}
.link-card:active{transform:scale(.99)}
.thumb{flex:0 0 45px;width:45px;height:45px;border-radius:11px;overflow:hidden;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.1);font-size:22px}
.thumb img{width:100%;height:100%;object-fit:cover}
.txt{flex:1;min-width:0;text-align:center;display:flex;flex-direction:column;gap:2px}
.t{font-size:16px}
.st{font-size:12px;opacity:.85}
.go{flex:0 0 22px;font-size:16px;opacity:.55;transition:opacity .2s,transform .2s}
.link-card:hover .go{opacity:1;transform:translate(2px,-2px)}

/* ---------- Form liên hệ / đăng ký ---------- */
.card{padding:20px;border-radius:17px;background:color-mix(in srgb,var(--card) 48%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--ink)}
.sub{margin:0 0 14px;text-align:center;font-size:15px;opacity:.92}
form[data-form]{display:flex;flex-direction:column;gap:10px}
form[data-form] input,form[data-form] textarea{width:100%;padding:13px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.1);color:inherit;font:inherit;font-size:16px;resize:vertical}
form[data-form] input::placeholder,form[data-form] textarea::placeholder{color:currentColor;opacity:.65}
form[data-form] input:focus,form[data-form] textarea:focus{outline:none;border-color:rgba(255,255,255,.7);background:rgba(255,255,255,.16)}
.btn{height:48px;border:0;border-radius:17px;background:var(--accent);color:var(--ink);font-size:15px;font-weight:600;cursor:pointer;transition:filter .2s,transform .2s}
.btn:hover{filter:brightness(1.18)}
.btn:active{transform:scale(.99)}
.btn[disabled]{opacity:.6;cursor:wait}
.form-msg:empty{display:none}
.form-msg{margin:0;font-size:14px;text-align:center}
.form-msg.err{color:#ffb4a8}
.ts-slot{display:flex;justify-content:center}

/* ---------- TikTok ---------- */
.tt-row{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:2px}
.tt-row::-webkit-scrollbar{display:none}
.tt{flex:0 0 calc((100% - 20px)/3);min-width:150px;aspect-ratio:9/16;border-radius:14px;overflow:hidden;background:rgba(0,0,0,.35);scroll-snap-align:start}
.tt iframe{width:100%;height:100%;border:0;display:block}
.tt noscript a{display:flex;height:100%;align-items:center;justify-content:center}

.text p{text-align:center;opacity:.92}
.foot{text-align:center;font-size:12px;opacity:.7;margin-top:28px}
.foot a{text-decoration:none}

/* ---------- Hộp thoại ---------- */
.modal{width:min(420px,calc(100% - 32px));border:0;border-radius:22px;padding:28px 22px 22px;background:var(--card);color:var(--ink);
  text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.45)}
.modal::backdrop{background:rgba(0,0,0,.45);backdrop-filter:blur(4px)}
.modal[open]{animation:pop .22s ease}
.modal h2{margin:12px 0 6px;font-size:20px}
.modal .x{position:absolute;top:10px;right:10px;margin:0}
.modal .x button{width:34px;height:34px;border:0;border-radius:50%;background:rgba(255,255,255,.1);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px}
.share-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}
.share-grid a,.share-grid button{display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 4px;border-radius:14px;border:0;
  background:rgba(255,255,255,.08);text-decoration:none;font-size:12px;cursor:pointer;transition:background .2s}
.share-grid a:hover,.share-grid button:hover{background:rgba(255,255,255,.18)}
.share-grid svg{font-size:22px}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}

.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translate(-50%,20px);opacity:0;pointer-events:none;
  background:rgba(20,20,20,.9);color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;transition:opacity .25s,transform .25s;z-index:10}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (min-width:768px){.col{padding-top:16px}.profile h1{font-size:26px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}