/* ============================================================
   ROX TOWER 54A NGUYỄN CHÍ THANH – giao diện (bản tối ưu chuyển đổi)
   Màu sắc đổi ở khối :root bên dưới (navy, vàng, xanh).
   Nút chính (vàng) = "Nhận báo giá"; Gọi/Zalo dùng kiểu phụ.
   ============================================================ */
:root{
  --navy:#001938;
  --navy-2:#002a5a;
  --blue:#22a2ec;
  --gold:#fed488;
  --gold-dark:#e8c070;
  --gold-text:#785a1a;
  --ink:#1f2937;
  --muted:#5b6472;
  --line:#d9dde6;
  --bg:#f6f3f2;
  --white:#fff;
  --radius:12px;
  --shadow:0 10px 30px rgba(0,25,56,.12);
  --container:1120px;
  --header-h:64px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 8px)}
body{margin:0;font-family:Manrope,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.6;color:var(--ink);background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy-2)}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;font-weight:800;color:var(--navy)}
h1{font-size:clamp(1.6rem,4.2vw,2.6rem)}
h2{font-size:clamp(1.45rem,3.2vw,2.1rem)}
h3{font-size:1.1rem}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ico{width:1.2em;height:1.2em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none;vertical-align:-0.25em}
.section{padding:56px 0}
.section-title{text-align:center;position:relative;padding-bottom:14px;margin-bottom:18px}
.section-title::after{content:"";display:block;width:56px;height:4px;border-radius:2px;background:var(--gold);margin:12px auto 0}
.section-lead{text-align:center;max-width:720px;margin:0 auto 28px;color:var(--muted)}
.section-lead .ico{color:var(--blue)}

/* Nút: chính = vàng, phụ = viền */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:12px 20px;border-radius:10px;font-weight:700;font-size:15px;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;line-height:1.2;font-family:inherit}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--gold);color:var(--navy);box-shadow:0 6px 18px rgba(254,212,136,.35)}
.btn-primary:hover{background:var(--gold-dark)}
.btn-secondary{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-secondary:hover{background:rgba(0,25,56,.06)}
.btn-block{width:100%}
.link-btn{background:none;border:0;padding:0;font:inherit;font-weight:700;color:var(--navy-2);text-decoration:underline;cursor:pointer}


/* ---- Rà soát UX/UI 12/10: focus, chạm, tiêu đề, skip link ---- */
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}
.btn:focus-visible,.bb-btn:focus-visible,.float-btn:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
a,button,input,select,textarea,label{touch-action:manipulation}
body{-webkit-tap-highlight-color:transparent}
h1,h2{text-wrap:balance}
h3,p,li{text-wrap:pretty}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--gold);color:var(--navy);font-weight:700;padding:10px 14px;border-radius:8px;text-decoration:none;transition:top .15s}
.skip-link:focus{top:12px}
.logo-text small{white-space:nowrap}
.lead-form input,.lead-form select,.lead-form textarea{min-width:0}
.popup-box,.lightbox{overscroll-behavior:contain}
.loc-card td{font-variant-numeric:tabular-nums}
.btn-secondary:hover{background:rgba(0,25,56,.06)}
@media (max-width:480px){.logo-text small{display:none}}
.proj-ext,.news-card a{text-decoration:none}

/* a) Header */
.site-header{position:sticky;top:0;z-index:50;background:var(--navy);color:#fff;box-shadow:0 2px 12px rgba(0,0,0,.25)}
.header-inner{display:flex;align-items:center;gap:16px;height:var(--header-h)}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:#fff}
.logo img{height:40px;width:40px}
.logo-text{display:flex;flex-direction:column;line-height:1.05}
.logo-text b{font-size:1.25rem;font-weight:800;letter-spacing:.01em;color:#fff}
.logo-text small{font-size:.68rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.logo-footer{margin-bottom:4px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{color:#fff;text-decoration:none;font-weight:600;padding:8px 12px;border-radius:8px;opacity:.9}
.nav a:hover,.nav a.is-active{background:rgba(255,255,255,.1);color:var(--gold);opacity:1}
.header-call{padding:9px 14px;color:#fff;border-color:var(--gold);background:transparent}
.header-call:hover{background:rgba(254,212,136,.15)}
.nav-toggle{display:none;background:none;border:0;color:#fff;padding:8px;cursor:pointer}
.nav-toggle .ico{width:26px;height:26px}
@media (max-width:860px){
  .nav{position:absolute;left:0;right:0;top:var(--header-h);background:var(--navy);flex-direction:column;padding:8px 16px 16px;display:none;border-top:1px solid rgba(255,255,255,.12)}
  .nav.is-open{display:flex}
  .nav-toggle{display:block;margin-left:auto}
  .header-call{margin-left:auto;padding:9px 12px;font-size:14px}
}
@media (max-width:420px){.header-call span{display:none}.header-call{padding:10px}}

/* b) Hero: 1 ảnh */
.hero{position:relative;color:#fff;background:var(--navy);overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,25,56,.93) 0%,rgba(0,25,56,.75) 55%,rgba(0,25,56,.5) 100%);z-index:1}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;padding-top:48px;padding-bottom:56px;min-height:520px}
.eyebrow{color:var(--gold);font-weight:700;letter-spacing:.02em;margin-bottom:10px;font-size:.95rem}
.hero h1{color:#fff}
.hero-sub{font-size:1.05rem;color:rgba(255,255,255,.92);max-width:560px}
.hero-points li{display:flex;gap:.6em;align-items:flex-start;margin:8px 0;color:rgba(255,255,255,.92)}
.hero-points .ico{color:var(--gold);margin-top:.2em}
@media (max-width:860px){
  .hero-inner{grid-template-columns:1fr;padding-top:28px;padding-bottom:40px;min-height:0;gap:22px}
  .hero::before{background:linear-gradient(180deg,rgba(0,25,56,.92) 0%,rgba(0,25,56,.85) 100%)}
  .hero-points{display:none}
}

/* Form */
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;color:var(--ink)}
.form-title{margin-bottom:4px}
.form-sub{color:var(--muted);margin-bottom:14px;font-size:.95rem}
.lead-form label{display:block;font-weight:600;font-size:.9rem;margin-bottom:12px;color:var(--navy)}
.lead-form label i{color:#c62828;font-style:normal}
.lead-form label small{font-weight:500;color:var(--muted)}
.lead-form input,.lead-form select{display:block;width:100%;margin-top:6px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);font:inherit;font-size:16px;color:var(--ink)}
.lead-form select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b6472' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:18px;padding-right:40px}
.lead-form input:focus,.lead-form select:focus{outline:2px solid var(--blue);outline-offset:1px;background-color:#fff}
.lead-form input.is-invalid{border-color:#c62828;background:#fff5f5}
.lead-form .hp{position:absolute;left:-9999px;top:-9999px;height:0;overflow:hidden}
.form-msg{min-height:1.4em;margin:10px 0 0;font-size:.95rem;font-weight:600}
.form-msg.is-error{color:#c62828}
.form-note{font-size:.8rem;color:var(--muted);margin:10px 0 0}

/* CTA giữa trang (form rút gọn) */
.cta-mini{background:var(--navy);color:#fff;padding:28px 0}
.cta-mini-inner{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.cta-mini h2{color:#fff;font-size:1.3rem;margin-bottom:4px}
.cta-mini p{margin:0;color:rgba(255,255,255,.8)}
.lead-form-mini{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:start;position:relative}
.lead-form-mini input{margin:0;background:#fff}
.lead-form-mini .btn{white-space:nowrap;padding:13px 18px}
.lead-form-mini .form-msg{grid-column:1/-1;margin:0;min-height:0}
.lead-form-mini .form-msg.is-error{color:#ffb4a8}
.lead-form-mini .form-msg:empty{display:none}
@media (max-width:860px){.cta-mini-inner{grid-template-columns:1fr;gap:14px}.lead-form-mini{grid-template-columns:1fr}.lead-form-mini .btn{width:100%}}

/* Ưu đãi */
.promo-section{background:var(--bg)}
.promo-section .deadline{display:inline-block;background:var(--gold);color:var(--navy);font-size:.6em;padding:4px 12px;border-radius:999px;vertical-align:middle;margin-left:8px;font-weight:800}
.promo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.promo-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:0 4px 16px rgba(0,25,56,.06);border-top:4px solid var(--gold);overflow:hidden}
.promo-img{display:block;width:calc(100% + 48px);margin:-24px -24px 18px;max-width:none;border:0;border-radius:0;box-shadow:none}
.promo-img img{width:100%;aspect-ratio:1/1;object-fit:cover}
.promo-num{font-size:2.6rem;font-weight:800;color:var(--navy);line-height:1;display:flex;align-items:baseline;gap:6px;margin-bottom:10px;min-height:44px}
.promo-num small{font-size:.95rem;font-weight:700;color:var(--muted)}
.promo-num .ico{width:40px;height:40px;color:var(--gold-dark);align-self:center}
.promo-card h3{font-size:1.1rem}
.promo-card p{margin:0;color:var(--muted);font-size:.95rem}
.promo-note{text-align:center;color:var(--muted);margin:22px auto 0;max-width:720px;font-size:.95rem}
@media (max-width:860px){.promo-grid{grid-template-columns:1fr}.promo-section .deadline{display:block;width:max-content;margin:10px auto 0}}

/* c) Thông số */
.specs{background:linear-gradient(180deg,var(--blue) 0%,var(--blue) 70%,#d6eeff 90%,#fff 100%);color:#fff}
.specs .section-title,.specs .section-lead{color:#fff}
.specs .section-title::after{background:#fff}
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:0}
.spec{background:rgba(0,25,56,.35);border:1px solid rgba(255,255,255,.25);border-radius:var(--radius);padding:18px 18px 18px 60px;position:relative}
.spec .ico{position:absolute;left:18px;top:50%;transform:translateY(-50%);width:30px;height:30px;color:var(--gold)}
.spec dt{font-size:.85rem;opacity:.85;font-weight:600}
.spec dd{margin:0;font-weight:800;font-size:1.05rem}
@media (max-width:860px){.spec-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.spec-grid{grid-template-columns:1fr}}

/* d) Vị trí */
.location{background:var(--bg)}
.map-wrap{position:relative;border-radius:var(--radius);overflow:hidden;background:#dfe6ee;aspect-ratio:16/8;max-height:420px;box-shadow:var(--shadow);margin-bottom:22px}
.map-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.map-btn{position:absolute;inset:0;width:100%;border:0;background:linear-gradient(180deg,#e9eef4,#d7dfe8);font:inherit;font-weight:700;font-size:1.05rem;color:var(--navy);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5em}
.map-btn .ico{width:1.6em;height:1.6em;color:var(--blue)}
.loc-highlights{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.loc-hi{background:#fff;border-radius:var(--radius);padding:14px;display:flex;gap:12px;align-items:center;box-shadow:0 4px 16px rgba(0,25,56,.06)}
.loc-hi .ico{width:30px;height:30px;color:var(--blue)}
.loc-hi strong{display:block;color:var(--navy);font-size:.95rem;line-height:1.3}
.loc-hi span{font-size:.85rem;color:var(--muted)}
.loc-more{text-align:center;margin:18px 0 0}
.loc-more .btn .ico{transition:transform .2s}
.loc-more .btn.is-open .ico{transform:rotate(180deg)}
.loc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:18px}
.loc-grid[hidden]{display:none}
.loc-card{background:#fff;border-radius:var(--radius);box-shadow:0 4px 16px rgba(0,25,56,.06);overflow:hidden}
.loc-card h3{background:var(--navy);color:#fff;margin:0;padding:12px 16px;font-size:1rem;text-transform:uppercase;letter-spacing:.03em}
.loc-card table{width:100%;border-collapse:collapse;font-size:.95rem}
.loc-card th{text-align:left;font-size:.78rem;color:var(--muted);font-weight:600;padding:8px 14px 4px;text-transform:uppercase;letter-spacing:.04em}
.loc-card td{padding:9px 14px;border-top:1px solid var(--line);vertical-align:top}
.loc-card td:nth-child(2),.loc-card td:nth-child(3){white-space:nowrap;text-align:right;color:var(--navy);font-weight:700}
.loc-card td .ico{color:var(--blue);margin-right:.3em}
@media (max-width:860px){.loc-highlights{grid-template-columns:1fr 1fr}}
@media (max-width:760px){.loc-grid{grid-template-columns:1fr}.map-wrap{aspect-ratio:4/3}}
@media (max-width:420px){.loc-highlights{grid-template-columns:1fr}}

/* e) Mặt bằng */
.floorplan-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;align-items:start}
.zoomable{position:relative;display:block;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:#fff}
.zoom-hint{position:absolute;right:12px;bottom:12px;background:rgba(0,25,56,.85);color:#fff;padding:6px 10px;border-radius:8px;font-size:.85rem;font-weight:600;display:inline-flex;align-items:center;gap:.4em}
.legend{background:var(--bg);border-radius:var(--radius);padding:22px}
.legend li{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--line)}
.legend li:last-child{border-bottom:0}
.sw{width:22px;height:16px;border-radius:4px;display:inline-block;border:1px solid rgba(0,0,0,.15)}
.sw-lease{background:#cfe3f7}.sw-wc{background:#f6d9a8}.sw-lift{background:#b9c2cc}.sw-hall{background:#e6e9ee}
@media (max-width:860px){.floorplan-grid{grid-template-columns:1fr}}

/* f) Tiện ích */
.amenities{background:var(--navy);color:#fff}
.amenities .section-title{color:#fff}
.amenities .section-lead{color:rgba(255,255,255,.8)}
.amen-photos{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:18px}
.amen-photo{margin:0;background:#fff;border-radius:var(--radius);overflow:hidden;color:var(--ink)}
.amen-photo img{width:100%;aspect-ratio:4/5;object-fit:cover}
.amen-photo figcaption{padding:12px 14px}
.amen-photo strong{display:block;color:var(--navy);text-transform:uppercase;font-size:.95rem}
.amen-photo span{font-size:.82rem;color:var(--muted)}
@media (max-width:960px){.amen-photos{grid-template-columns:repeat(3,1fr)}}
@media (max-width:600px){.amen-photos{grid-template-columns:repeat(2,1fr);gap:10px}}
.amen-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.amen{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:18px 16px;display:flex;gap:14px;align-items:flex-start}
.amen .ico{width:34px;height:34px;color:var(--gold);flex:none}
.amen strong{display:block;font-size:1rem}
.amen span{font-size:.85rem;opacity:.8}
@media (max-width:960px){.amen-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:420px){.amen-grid{grid-template-columns:1fr}}

/* g) Thư viện ảnh */
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gal-grid .zoomable{aspect-ratio:4/3}
.gal-grid img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.gal-grid .zoomable:hover img{transform:scale(1.04)}
@media (max-width:760px){.gal-grid{grid-template-columns:repeat(2,1fr);gap:10px}}

/* Tin tức */
.news{background:var(--bg)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.news-card{background:#fff;border-radius:var(--radius);padding:18px;box-shadow:0 4px 16px rgba(0,25,56,.06);display:flex;flex-direction:column;gap:8px}
.news-card time{font-size:.8rem;color:var(--muted);font-weight:600}
.news-card a{font-weight:700;text-decoration:none;color:var(--navy);line-height:1.4}
.news-card a:hover{color:var(--blue)}
.news-card .src{font-size:.8rem;color:var(--muted);display:flex;align-items:center;gap:.4em;margin-top:auto}
@media (max-width:760px){.news-grid{grid-template-columns:1fr}}

/* h) Form cuối trang */
.cta-section{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.cta-text h2{color:#fff}
.cta-text p{color:rgba(255,255,255,.88)}
.cta-alt a{color:var(--gold)}
@media (max-width:860px){.cta-inner{grid-template-columns:1fr}}

/* Chân trang */
.site-footer{background:#0b1220;color:rgba(255,255,255,.85);padding:40px 0 40px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr .6fr;gap:28px}
.footer-desc{font-size:.9rem;opacity:.8;margin-top:12px}
.site-footer address{font-style:normal}
.site-footer address p{display:flex;gap:.5em;align-items:flex-start;margin:0 0 8px}
.site-footer address .ico{color:var(--gold);margin-top:.2em}
.site-footer a{color:#fff}
.footer-links{display:flex;flex-direction:column;gap:6px}
.footer-links a{text-decoration:none;opacity:.85}
.footer-links a:hover{opacity:1;color:var(--gold)}
.copyright{text-align:center;font-size:.8rem;opacity:.6;margin:28px 16px 0}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr}}

/* i) Điện thoại: thanh đáy cố định */
.bottom-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(0,0,0,.12);padding:8px 10px calc(8px + env(safe-area-inset-bottom));grid-template-columns:1fr 1fr 1.3fr;gap:8px}
.bb-btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:12px 6px;border-radius:10px;font-weight:700;font-size:.9rem;text-decoration:none;border:2px solid var(--navy);color:var(--navy);background:#fff;font-family:inherit;cursor:pointer}
.bb-btn .ico{width:20px;height:20px}
.bb-btn .zalo-logo{width:24px;height:24px}
.bb-primary{background:var(--gold);border-color:var(--gold);color:var(--navy)}
/* i) Máy tính: 2 nút nổi nhỏ */
.float-btns{position:fixed;right:16px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:10px}
.float-btn{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;text-decoration:none;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.float-btn .ico{width:24px;height:24px}
.float-call{background:#e53935;animation:rung 3.2s ease-in-out infinite}
.float-zalo{background:transparent;box-shadow:none;animation:rung 3.2s ease-in-out .9s infinite}
.float-zalo .zalo-logo{width:50px;height:50px;filter:drop-shadow(0 6px 14px rgba(0,0,0,.3))}
.bb-call .ico,.bb-zalo .ico{animation:rung-nho 3.2s ease-in-out infinite}
.bb-zalo .ico{animation-delay:.9s}
@keyframes rung{0%,70%,100%{transform:rotate(0) scale(1)}73%{transform:rotate(-14deg) scale(1.08)}76%{transform:rotate(12deg) scale(1.08)}79%{transform:rotate(-10deg) scale(1.06)}82%{transform:rotate(8deg) scale(1.04)}85%{transform:rotate(-4deg) scale(1.02)}88%{transform:rotate(0) scale(1)}}
@keyframes rung-nho{0%,70%,100%{transform:rotate(0)}73%{transform:rotate(-16deg)}76%{transform:rotate(14deg)}79%{transform:rotate(-10deg)}82%{transform:rotate(6deg)}86%{transform:rotate(0)}}
.float-call::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(229,57,53,.6);animation:song 3.2s ease-out infinite;pointer-events:none}
.float-btn{position:relative}
@keyframes song{0%,70%{transform:scale(.85);opacity:0}75%{opacity:.8}100%{transform:scale(1.5);opacity:0}}

/* Popup ưu đãi */
.popup{position:fixed;inset:0;z-index:80;background:rgba(0,10,25,.72);display:flex;align-items:center;justify-content:center;padding:16px}
.popup[hidden]{display:none}
.popup-box{position:relative;width:100%;max-width:420px;border-radius:16px;overflow:hidden;background:var(--navy);box-shadow:0 20px 60px rgba(0,0,0,.45);animation:popup-in .3s ease-out}
.popup-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.popup-box::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,25,56,.35) 0%,rgba(0,25,56,.75) 100%)}
.popup-inner{position:relative;padding:36px 28px 28px;text-align:center;color:#fff}
.popup-inner h2{color:#fff;text-transform:uppercase;font-size:1.7rem;line-height:1.2;margin-bottom:20px;text-shadow:0 2px 10px rgba(0,0,0,.4)}
.popup-form input{width:100%;margin:0 0 12px;padding:14px 16px;border:1px solid rgba(255,255,255,.4);border-radius:10px;background:rgba(255,255,255,.92);font:inherit;font-size:16px;color:var(--ink)}
.popup-form input:focus{outline:2px solid var(--gold);outline-offset:1px;background:#fff}
.popup-form input.is-invalid{border-color:#ff8a80;background:#fff5f5}
.popup-note{font-size:.9rem;margin:4px 0 12px;color:rgba(255,255,255,.95)}
.btn-popup{background:var(--navy);color:#fff;font-size:1.25rem;padding:14px 20px;border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.btn-popup:hover{background:var(--navy-2)}
.popup-form .form-msg.is-error{color:#ffb4a8;text-shadow:0 1px 4px rgba(0,0,0,.5)}
.popup-close{position:absolute;top:10px;right:10px;z-index:2;width:40px;height:40px;border-radius:50%;border:0;background:rgba(255,255,255,.9);color:var(--navy);display:flex;align-items:center;justify-content:center;cursor:pointer}
.popup-close .ico{width:22px;height:22px}
@keyframes popup-in{from{transform:translateY(16px) scale(.96);opacity:0}to{transform:none;opacity:1}}
@media (max-height:640px){.popup-inner{padding:28px 20px 20px}.popup-inner h2{font-size:1.4rem;margin-bottom:12px}}
@media (max-width:860px){
  .bottom-bar{display:grid}
  .float-btns{display:none}
  body{padding-bottom:72px}
}

/* Lightbox */
.lightbox{border:0;padding:0;background:transparent;max-width:100vw;max-height:100vh;width:100vw;height:100vh;color:#fff}
.lightbox::backdrop{background:rgba(0,10,25,.92)}
.lightbox figure{margin:0;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:56px 16px 24px;gap:12px}
.lightbox img{max-width:100%;max-height:calc(100vh - 120px);object-fit:contain;border-radius:8px}
.lightbox figcaption{font-size:.95rem;opacity:.85;text-align:center}
.lb-close,.lb-nav{position:absolute;background:rgba(255,255,255,.12);border:0;color:#fff;border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer}
.lb-close{top:12px;right:12px}
.lb-nav{top:50%;transform:translateY(-50%)}
.lb-prev{left:8px}.lb-next{right:8px}
.lb-nav .ico,.lb-close .ico{width:26px;height:26px}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}

/* Trang bị chuẩn hạng A */
.equip-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.equip-item{background:var(--bg);border-radius:var(--radius);padding:18px;border-top:4px solid var(--gold)}
.equip-item .ico{width:30px;height:30px;color:var(--blue);margin-bottom:8px}
.equip-item h3{font-size:1rem;margin-bottom:6px}
.equip-item p{font-size:.88rem;color:var(--muted);margin:0}
@media (max-width:1000px){.equip-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.equip-grid{grid-template-columns:1fr}}