:root{--bg:#f7f3e8;--surface:#fffdf7;--surface-strong:#fff;--ink:#111827;--ink-soft:#334155;--muted:#64748b;--line:#e7dcc6;--navy:#0f2742;--teal:#0f766e;--teal-dark:#115e59;--gold:#f0c94a;--gold-soft:#fff1b8;--warm:#c17a2e;--danger:#b42318;--shadow:0 28px 80px #0f274221;--shadow-soft:0 18px 48px #0f274217}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:linear-gradient(#0f274209 1px, transparent 1px), linear-gradient(90deg, #0f274209 1px, transparent 1px), radial-gradient(circle at 12% 12%, #f0c94a47, transparent 28rem), radial-gradient(circle at 88% 18%, #0f766e29, transparent 26rem), var(--bg);color:var(--ink);background-size:44px 44px,44px 44px,auto,auto,auto;margin:0;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.site-shell{min-height:100vh}.container{width:min(1160px,100% - 40px);margin:0 auto}.nav{z-index:10;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffdf7db;border:1px solid #0f274214;border-radius:999px;justify-content:space-between;align-items:center;margin-top:14px;padding:12px 14px;display:flex;position:sticky;top:14px;box-shadow:0 14px 44px #0f274214}.brand{color:var(--navy);letter-spacing:-.02em;align-items:center;gap:12px;font-size:.96rem;font-weight:900;display:flex}.brand-mark{background:linear-gradient(135deg, #fff3, transparent), var(--navy);width:42px;height:42px;color:var(--gold);border-radius:15px;place-items:center;font-size:.86rem;font-weight:950;display:grid;box-shadow:inset 0 0 0 1px #ffffff24}.nav-links{color:var(--ink-soft);align-items:center;gap:6px;font-size:.84rem;font-weight:800;display:flex}.nav-links a{text-overflow:ellipsis;white-space:nowrap;border-radius:999px;max-width:190px;padding:10px 12px;transition:background .18s,color .18s;overflow:hidden}.nav-links a:hover{color:var(--teal-dark);background:#0f766e17}.hero{grid-template-columns:1.08fr .92fr;align-items:center;gap:54px;padding:76px 0 74px;display:grid}.eyebrow{color:var(--teal-dark);background:#ffffffb8;border:1px solid #0f766e24;border-radius:999px;align-items:center;gap:10px;margin:0 0 20px;padding:10px 14px;font-size:.86rem;font-weight:900;display:inline-flex;box-shadow:0 10px 30px #0f27420f}.eyebrow:before{content:"";background:var(--gold);border-radius:999px;width:8px;height:8px;box-shadow:0 0 0 5px #f0c94a38}.hero h1{max-width:760px;color:var(--navy);letter-spacing:-.055em;text-wrap:balance;margin:0;font-size:clamp(2.85rem,6.3vw,5.6rem);font-weight:900;line-height:1.04}.hero-copy{max-width:670px;color:var(--ink-soft);margin:28px 0 0;font-size:1.08rem;font-weight:520;line-height:1.78}.hero-actions{flex-wrap:wrap;gap:14px;margin-top:34px;display:flex}.button{cursor:pointer;letter-spacing:-.015em;border:1px solid #0000;border-radius:16px;justify-content:center;align-items:center;gap:10px;min-height:50px;padding:0 20px;font-weight:900;transition:transform .18s,box-shadow .18s,border-color .18s,background .18s;display:inline-flex}.button:hover{transform:translateY(-2px)}.button-primary{background:linear-gradient(135deg, #ffffff26, transparent), var(--teal);color:#fff;box-shadow:0 18px 36px #0f766e38}.button-primary:hover{background:var(--teal-dark)}.button-secondary{color:var(--navy);background:#ffffffb8;border-color:#0f27421f;box-shadow:0 12px 30px #0f27420f}.hero-card{box-shadow:var(--shadow);background:#fffdf7bd;border:1px solid #0f27421a;border-radius:34px;padding:18px;position:relative;overflow:hidden}.hero-card:before{content:"MARKETING OS";background:linear-gradient(135deg, #f0c94a42, #0f766e14), var(--surface-strong);color:var(--navy);letter-spacing:.16em;border-radius:22px;margin-bottom:12px;padding:14px 16px;font-size:.8rem;font-weight:950;display:block}.metric{background:var(--surface-strong);box-shadow:var(--shadow-soft);border:1px solid #0f274214;border-radius:24px;padding:24px;position:relative}.metric+.metric{margin-top:12px}.metric strong{color:var(--navy);letter-spacing:-.06em;font-size:2.2rem;font-weight:950;display:block}.metric span{color:var(--muted);margin-top:8px;font-size:.96rem;line-height:1.6;display:block}.section-heading{justify-content:space-between;align-items:end;gap:24px;margin:26px 0 28px;display:flex}.section-heading h2{color:var(--navy);letter-spacing:-.075em;margin:0;font-size:clamp(2.2rem,4vw,4.2rem);font-weight:950;line-height:.96}.section-heading p{max-width:450px;color:var(--ink-soft);margin:0;font-size:1rem;line-height:1.7}.buy-note{background:radial-gradient(circle at 0 0,#f0c94a52,#0000 18rem),linear-gradient(135deg,#fffffff5,#ecfdf5e0);border:1px solid #0f766e2e;border-radius:30px;grid-template-columns:1fr auto;align-items:center;gap:22px;margin:0 0 30px;padding:24px;display:grid;box-shadow:0 24px 70px #0f27421f}.buy-note-label{background:var(--gold);color:var(--navy);letter-spacing:.08em;text-transform:uppercase;border-radius:999px;margin-bottom:12px;padding:7px 11px;font-size:.78rem;font-weight:950;display:inline-flex}.buy-note h3{max-width:680px;color:var(--navy);letter-spacing:-.055em;margin:0;font-size:clamp(1.45rem,3vw,2.25rem);font-weight:950;line-height:1.12}.buy-note p{max-width:680px;color:var(--ink-soft);margin:12px 0 0;font-size:1rem;line-height:1.65}.buy-steps{flex-wrap:wrap;grid-column:1/-1;gap:10px;display:flex}.buy-steps span{min-height:38px;color:var(--navy);background:#fff;border:1px solid #0f274214;border-radius:999px;align-items:center;padding:0 13px;font-size:.92rem;font-weight:900;display:inline-flex;box-shadow:0 10px 26px #0f27420f}.buy-note-actions{flex-direction:column;gap:10px;min-width:190px;display:flex}.category-catalog{gap:36px;padding-bottom:86px;display:grid}.category-section{gap:22px;scroll-margin-top:110px;display:grid}.category-heading{text-align:center;background:radial-gradient(circle at 18% 20%,#f0c94a57,#0000 12rem),linear-gradient(135deg,#fffffff5,#ecfdf5e6);border:1px solid #0f766e2e;border-radius:999px;justify-items:center;gap:10px;width:min(760px,100%);margin:0 auto;padding:24px 28px;display:grid;position:relative;overflow:hidden;box-shadow:0 24px 70px #0f27421f}.category-heading h3{color:var(--navy);letter-spacing:-.06em;margin:0;font-size:clamp(1.65rem,3vw,2.45rem);font-weight:950;line-height:1.08;position:relative}.category-heading span,.category-badge{width:fit-content;color:var(--teal-dark);background:#0f766e1a;border-radius:999px;align-items:center;font-size:.78rem;font-weight:950;display:inline-flex}.category-heading span{background:var(--gold);color:var(--navy);padding:8px 12px;position:relative}.category-badge{margin-bottom:10px;padding:6px 10px}.empty-category{color:var(--muted);background:#ffffff8c;border:1px dashed #0f27422e;border-radius:24px;padding:24px;font-weight:800}.product-grid{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}.product-card{box-shadow:var(--shadow-soft);background:#fffdf7db;border:1px solid #0f274217;border-radius:30px;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s;display:flex;overflow:hidden}.product-card:hover{border-color:#0f766e40;transform:translateY(-6px);box-shadow:0 26px 70px #0f274229}.product-image{aspect-ratio:4/3;object-fit:cover;background:linear-gradient(135deg, #0f766e2e, #f0c94a52), var(--gold-soft);width:100%}.product-body{flex-direction:column;flex:1;padding:22px;display:flex}.product-body h3{color:var(--navy);letter-spacing:-.035em;margin:0;font-size:1.26rem;font-weight:950;line-height:1.22}.product-body p{color:var(--muted);margin:12px 0 0;font-size:.96rem;line-height:1.68}.product-footer{justify-content:space-between;align-items:center;gap:14px;margin-top:auto;padding-top:24px;display:flex}.price{color:var(--warm);letter-spacing:-.03em;font-size:1.08rem;font-weight:950}.footer{color:var(--muted);background:#fffdf770;border-top:1px solid #0f274217;padding:36px 0 48px}.footer strong{color:var(--navy)}.footer-actions{flex-wrap:wrap;gap:12px;margin-top:18px;display:flex}.contact-button{letter-spacing:-.02em;border-radius:999px;justify-content:center;align-items:center;min-height:46px;padding:0 18px;font-weight:900;transition:transform .18s,box-shadow .18s,background .18s;display:inline-flex}.contact-button:hover{transform:translateY(-2px)}.contact-button-zalo{background:var(--teal);color:#fff;box-shadow:0 14px 30px #0f766e33}.contact-button-facebook{background:var(--navy);color:#fff;box-shadow:0 14px 30px #0f27422e}.floating-cta{z-index:30;gap:12px;display:grid;position:fixed;top:50%;right:22px;transform:translateY(-50%)}.floating-button{color:#fff;text-transform:uppercase;border:2px solid #ffffffb3;border-radius:50%;place-items:center;width:64px;height:64px;font-size:.82rem;font-weight:950;transition:transform .18s,box-shadow .18s;display:grid;box-shadow:0 18px 38px #0f274238}.floating-button:hover{transform:translateY(-3px)scale(1.04);box-shadow:0 24px 52px #0f274247}.floating-zalo{background:linear-gradient(135deg,#11a7ff,#0068ff)}.floating-facebook{background:linear-gradient(135deg,#2f7df6,#123f9f)}.admin-page{min-height:100vh;padding:48px 0}.admin-card,.admin-panel{box-shadow:var(--shadow);background:#fffdf7e0;border:1px solid #0f27421a;border-radius:30px}.admin-card{width:min(460px,100% - 40px);margin:80px auto;padding:30px}.admin-title{color:var(--navy);letter-spacing:-.06em;margin:0 0 10px;font-size:2.2rem;font-weight:950;line-height:1}.admin-muted{color:var(--muted);margin:0 0 22px;line-height:1.65}.form-grid{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}.field{color:var(--navy);gap:8px;font-size:.92rem;font-weight:900;display:grid}.field-full{grid-column:1/-1}.input,.select,.textarea{width:100%;color:var(--ink);background:#fff;border:1px solid #0f27421f;border-radius:16px;outline:none;transition:border-color .16s,box-shadow .16s}.input:focus,.textarea:focus{border-color:#0f766e7a;box-shadow:0 0 0 4px #0f766e1c}.input{min-height:48px;padding:0 14px}.textarea{resize:vertical;min-height:110px;padding:14px}.admin-panel{padding:28px}.admin-panel h2{color:var(--navy);letter-spacing:-.04em;margin-top:0}.admin-list-header{justify-content:space-between;align-items:center;gap:14px;margin-bottom:16px;display:flex}.admin-list-header h2{margin:0}.admin-filter{max-width:260px}.admin-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px;display:flex}.admin-layout{grid-template-columns:.92fr 1.08fr;gap:24px;display:grid}.admin-list{gap:14px;display:grid}.admin-product{background:#fff;border:1px solid #0f274214;border-radius:20px;grid-template-columns:86px 1fr;align-items:center;gap:14px;padding:14px;display:grid}.admin-product img{object-fit:cover;border-radius:14px;width:86px;height:68px}.admin-product h3{color:var(--navy);letter-spacing:-.03em;margin:0 0 6px;font-size:1rem}.admin-actions{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.tiny-button{min-height:34px;color:var(--teal-dark);cursor:pointer;background:#fff;border:1px solid #0f27421a;border-radius:999px;padding:0 12px;font-size:.88rem;font-weight:900}.tiny-button:hover{background:#0f766e12;border-color:#0f766e52}.message{color:var(--teal-dark);margin-top:14px;font-weight:850}@media (max-width:900px){.hero,.admin-layout{grid-template-columns:1fr}.hero h1{max-width:680px;font-size:clamp(2.7rem,10vw,4.8rem)}.product-grid{grid-template-columns:repeat(2,1fr)}.category-heading{border-radius:32px;padding:22px}.buy-note{grid-template-columns:1fr}.buy-note-actions{flex-flow:wrap;min-width:0}}@media (max-width:640px){.container{width:min(100% - 28px,1160px)}.nav,.section-heading,.admin-header{flex-direction:column;align-items:flex-start}.nav{border-radius:26px}.nav-links{flex-direction:column;align-items:stretch;width:100%}.nav-links a{background:#0f766e0f;width:100%;max-width:none}.hero{padding:48px 0 56px}.hero h1{letter-spacing:-.045em;font-size:clamp(2.45rem,12vw,3.8rem);line-height:1.08}.product-grid,.form-grid{grid-template-columns:1fr}.admin-list-header{flex-direction:column;align-items:stretch}.admin-filter{max-width:none}.buy-note{border-radius:24px;padding:18px}.buy-note-actions,.product-footer,.footer-actions{flex-direction:column;align-items:stretch}.floating-cta{display:flex;top:auto;bottom:18px;right:14px;transform:none}.floating-button{width:56px;height:56px;font-size:.76rem}}