:root{
  --c-bg:#fbfaf6;
  --c-surface:#ffffff;
  --c-ink:#0d1b2a;
  --c-ink-2:#3d4a59;
  --c-muted:#7a8794;
  --c-line:#e7e3d8;
  --c-brand:#0a4d8c;       /* deep ocean blue — Khánh Hòa */
  --c-brand-2:#0e6bbf;
  --c-accent:#e8a838;       /* warm sand */
  --c-accent-2:#cd8a1c;
  --c-success:#0f8a5f;
  --shadow-sm:0 1px 2px rgba(13,27,42,.06),0 2px 6px rgba(13,27,42,.04);
  --shadow-md:0 4px 12px rgba(13,27,42,.08),0 12px 32px rgba(13,27,42,.06);
  --shadow-lg:0 24px 64px rgba(10,77,140,.18);
  --radius:14px;
  --radius-lg:22px;
  --container:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.6;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* === DISPLAY HEADINGS === */
.display{font-family:'Bricolage Grotesque','Be Vietnam Pro',sans-serif;font-weight:700;letter-spacing:-.02em;line-height:1.05}

/* === TOP BAR === */
.topbar{background:var(--c-ink);color:#dfe5ec;font-size:13px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.topbar a{color:#dfe5ec}
.topbar .row{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.topbar .pulse{width:8px;height:8px;background:#27d27c;border-radius:50%;display:inline-block;box-shadow:0 0 0 0 rgba(39,210,124,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(39,210,124,.6)}70%{box-shadow:0 0 0 8px rgba(39,210,124,0)}100%{box-shadow:0 0 0 0 rgba(39,210,124,0)}}

/* === HEADER === */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--c-line)}
.header .container{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-top:14px;padding-bottom:14px}
.logo{display:flex;align-items:center;gap:12px;font-weight:700}
.logo svg{flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.05}
.logo-text strong{font-family:'Bricolage Grotesque',sans-serif;font-size:18px;letter-spacing:-.01em;color:var(--c-brand)}
.logo-text span{font-size:11px;color:var(--c-muted);letter-spacing:.08em;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:8px 11px;border-radius:8px;font-size:14px;font-weight:500;color:var(--c-ink-2);transition:all .15s;white-space:nowrap}
.nav a:hover{background:var(--c-line);color:var(--c-ink)}
.nav .has-sub{position:relative}
.nav .has-sub > a::after{content:"▾";font-size:9px;margin-left:4px;color:var(--c-muted)}
.submenu{position:absolute;top:calc(100% + 8px);left:0;background:#fff;border:1px solid var(--c-line);border-radius:12px;box-shadow:var(--shadow-md);min-width:280px;padding:10px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .18s}
.has-sub:hover .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:block;padding:10px 12px;font-size:14px;border-radius:8px}
.submenu a:hover{background:var(--c-bg)}
.cta-call{display:inline-flex;align-items:center;gap:8px;background:var(--c-brand);color:#fff;padding:10px 18px;border-radius:999px;font-weight:600;font-size:14px;transition:all .2s;box-shadow:var(--shadow-sm);white-space:nowrap;flex-shrink:0}
.cta-call:hover{background:var(--c-brand-2);transform:translateY(-1px);box-shadow:var(--shadow-md);color:#fff}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;background:var(--c-bg);border:1px solid var(--c-line);align-items:center;justify-content:center}
.menu-toggle span{width:18px;height:2px;background:var(--c-ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
.menu-toggle span::before{top:-6px}.menu-toggle span::after{top:6px}

/* === HERO === */
.hero{position:relative;color:#fff;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,30,55,.55) 0%,rgba(10,30,55,.78) 70%,rgba(10,30,55,.92) 100%),url('/assets/hero-drilling.png') center/cover no-repeat;z-index:-1}
.hero-inner{padding:88px 0 96px;display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:center}
.hero .badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:8px 16px;border-radius:999px;font-size:13px;font-weight:500;backdrop-filter:blur(8px);margin-bottom:22px}
.hero .badge svg{width:16px;height:16px}
.hero h1{font-size:clamp(34px,5vw,60px);line-height:1.05;margin-bottom:22px;letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--c-accent);position:relative}
.hero p.lead{font-size:18px;color:#dde6f0;max-width:560px;margin-bottom:32px;line-height:1.55}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;padding-top:28px;border-top:1px solid rgba(255,255,255,.16);max-width:540px}
.hero-stats .num{font-family:'Bricolage Grotesque',sans-serif;font-size:36px;font-weight:700;color:var(--c-accent);line-height:1}
.hero-stats .lbl{font-size:13px;color:#c5d1e0;margin-top:6px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;border-radius:999px;font-weight:600;font-size:15px;transition:all .2s;border:1.5px solid transparent}
.btn-primary{background:var(--c-accent);color:var(--c-ink)}
.btn-primary:hover{background:var(--c-accent-2);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(232,168,56,.4)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}

/* === HERO FORM === */
.hero-form{background:#fff;color:var(--c-ink);border-radius:var(--radius-lg);padding:36px 32px 32px;box-shadow:var(--shadow-lg);position:relative}
.hero-form-tag{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--c-accent);color:var(--c-ink);padding:7px 18px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;box-shadow:0 6px 18px rgba(232,168,56,.35)}
.hero-form h3{font-family:'Bricolage Grotesque',sans-serif;font-size:24px;margin-bottom:6px;font-weight:700}
.hero-form .sub{color:var(--c-muted);font-size:14px;margin-bottom:22px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:500;margin-bottom:6px;color:var(--c-ink-2)}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--c-line);border-radius:10px;font:inherit;font-size:14.5px;background:#fff;transition:all .15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(10,77,140,.1)}
.consent-field label{display:grid!important;grid-template-columns:18px minmax(0,1fr);align-items:start;gap:10px}
.consent-field input{width:16px;height:16px;margin-top:3px}
.consent-field span{min-width:0;overflow-wrap:anywhere;line-height:1.45}
.hero-form button{width:100%;background:var(--c-brand);color:#fff;padding:14px;border-radius:10px;font-weight:600;font-size:15px;margin-top:6px;transition:all .15s}
.hero-form button:hover{background:var(--c-brand-2)}
.hero-form .reassure{margin-top:14px;font-size:12px;color:var(--c-muted);text-align:center}

/* === SECTIONS === */
section{padding:96px 0}
.section-head{max-width:760px;margin:0 auto 56px;text-align:center}
.section-head .eyebrow{font-size:13px;font-weight:600;color:var(--c-brand);letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px}
.section-head h2{font-size:clamp(28px,3.6vw,44px);margin-bottom:16px;letter-spacing:-.02em}
.section-head p{color:var(--c-ink-2);font-size:17px;line-height:1.55}

/* === USP STRIP === */
.usp{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:36px 0}
.usp-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.usp-item{display:flex;gap:14px;align-items:flex-start}
.usp-item .ic{flex-shrink:0;width:44px;height:44px;border-radius:12px;background:rgba(10,77,140,.08);color:var(--c-brand);display:flex;align-items:center;justify-content:center}
.usp-item h4{font-size:15px;font-weight:600;margin-bottom:4px}
.usp-item p{font-size:13.5px;color:var(--c-muted);line-height:1.5}

/* === SERVICES === */
#dich-vu{background:linear-gradient(180deg,var(--c-bg) 0%,#fff 100%)}
.svc-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.svc-card{grid-column:span 4;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-lg);padding:32px;transition:all .25s;display:flex;flex-direction:column;position:relative;overflow:hidden}
.svc-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--c-brand) 0%,var(--c-brand-2) 100%);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--c-brand)}
.svc-card:hover::before{transform:scaleX(1)}
.svc-card.feat{grid-column:span 6;background:var(--c-ink);color:#fff;border-color:var(--c-ink)}
.svc-card.feat .svc-meta{color:#9eb0c6}
.svc-card.feat .svc-link{color:var(--c-accent)}
.svc-icon{width:54px;height:54px;border-radius:14px;background:rgba(10,77,140,.1);color:var(--c-brand);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.svc-card.feat .svc-icon{background:rgba(232,168,56,.15);color:var(--c-accent)}
.svc-card h3{font-family:'Bricolage Grotesque',sans-serif;font-size:22px;margin-bottom:10px;font-weight:700;letter-spacing:-.01em}
.svc-card p.svc-desc{color:var(--c-ink-2);font-size:14.5px;line-height:1.6;margin-bottom:18px;flex-grow:1}
.svc-card.feat p.svc-desc{color:#c5d1e0}
.svc-meta{font-size:13px;color:var(--c-muted);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:16px}
.svc-meta span{display:inline-flex;align-items:center;gap:6px}
.svc-link{font-size:14px;font-weight:600;color:var(--c-brand);display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
.svc-link:hover{gap:10px}

/* === ABOUT SPLIT === */
.about{background:#fff}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-img{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-img img{aspect-ratio:4/5;object-fit:cover;width:100%}
.about-img .badge-float{position:absolute;bottom:24px;left:24px;right:24px;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-radius:14px;padding:18px 22px;display:flex;gap:18px;align-items:center}
.about-img .badge-float .stars{color:var(--c-accent);font-size:18px;letter-spacing:2px}
.about-img .badge-float strong{display:block;font-size:15px;margin-bottom:2px}
.about-img .badge-float small{font-size:12.5px;color:var(--c-muted)}
.about h2{font-size:clamp(28px,3.4vw,42px);margin-bottom:20px;letter-spacing:-.02em}
.about h2 em{font-style:normal;color:var(--c-brand)}
.about .eyebrow{font-size:13px;font-weight:600;color:var(--c-brand);letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px}
.about-list{list-style:none;margin:24px 0 32px;display:grid;gap:14px}
.about-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--c-ink-2)}
.about-list .check{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--c-success);color:#fff;display:flex;align-items:center;justify-content:center;margin-top:2px}

/* === PRICING === */
.pricing{background:var(--c-bg)}
.price-table{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--c-line)}
.price-table table{width:100%;border-collapse:collapse}
.price-table thead{background:var(--c-ink);color:#fff}
.price-table th{padding:18px 20px;text-align:left;font-size:13.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.price-table td{padding:18px 20px;border-top:1px solid var(--c-line);font-size:15px}
.price-table tbody tr:hover{background:var(--c-bg)}
.price-table .price{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;color:var(--c-brand);font-size:16px;white-space:nowrap}
.price-note{margin-top:20px;padding:18px 22px;background:rgba(232,168,56,.1);border-left:4px solid var(--c-accent);border-radius:8px;font-size:14px;color:var(--c-ink-2)}
.price-cta{text-align:center;margin-top:36px}

/* === PROCESS === */
.process{background:#fff;position:relative;overflow:hidden}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.process-grid::before{content:"";position:absolute;top:36px;left:8%;right:8%;height:2px;background:repeating-linear-gradient(90deg,var(--c-line) 0,var(--c-line) 8px,transparent 8px,transparent 16px);z-index:0}
.process-step{text-align:center;position:relative;z-index:1}
.process-num{width:72px;height:72px;border-radius:50%;background:#fff;border:2px solid var(--c-brand);color:var(--c-brand);font-family:'Bricolage Grotesque',sans-serif;font-size:28px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 22px;box-shadow:0 0 0 6px var(--c-bg)}
.process-step h4{font-size:18px;margin-bottom:10px;font-weight:600}
.process-step p{color:var(--c-ink-2);font-size:14.5px;line-height:1.55}

/* === PROJECTS === */
.projects{background:var(--c-bg)}
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.proj-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--c-line);transition:all .25s}
.proj-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.proj-img{aspect-ratio:4/3;position:relative;overflow:hidden;background-size:cover;background-position:center}
.proj-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,77,140,0) 30%,rgba(10,30,55,.55) 100%)}
.proj-img.a{background-image:url('/assets/team-work.png')}
.proj-img.b{background-image:url('/assets/clean-water.png')}
.proj-img.c{background-image:url('/assets/hero-drilling.png')}
.proj-img img{width:100%;height:100%;object-fit:cover}
.proj-tag{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.95);color:var(--c-brand);padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;z-index:2}
.proj-body{padding:22px}
.proj-body h4{font-size:17px;font-weight:600;margin-bottom:8px}
.proj-meta{display:flex;gap:14px;font-size:13px;color:var(--c-muted);margin-bottom:10px}
.proj-meta span{display:inline-flex;align-items:center;gap:5px}
.proj-body p{color:var(--c-ink-2);font-size:14px;line-height:1.55}

/* === REGIONS === */
.regions{background:#fff}
.region-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.region-card{background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--radius);padding:22px;transition:all .2s;display:block}
.region-card:hover{background:var(--c-brand);color:#fff;border-color:var(--c-brand);transform:translateY(-2px)}
.region-card h4{font-family:'Bricolage Grotesque',sans-serif;font-size:18px;margin-bottom:6px}
.region-card span{font-size:13px;color:var(--c-muted);transition:color .2s}
.region-card:hover span{color:#c5d1e0}
.region-sub{margin-top:36px;padding:28px;background:var(--c-bg);border-radius:var(--radius-lg)}
.region-sub h4{font-size:16px;margin-bottom:14px;font-weight:600;color:var(--c-ink-2)}
.region-sub-list{display:flex;flex-wrap:wrap;gap:10px}
.region-sub-list a{padding:8px 14px;background:#fff;border:1px solid var(--c-line);border-radius:999px;font-size:13.5px;color:var(--c-ink-2);transition:all .15s}
.region-sub-list a:hover{border-color:var(--c-brand);color:var(--c-brand)}

/* === TESTIMONIALS === */
.testi{background:linear-gradient(180deg,var(--c-bg) 0%,#fff 100%);position:relative;overflow:hidden}
.testi-divider{display:flex;align-items:center;justify-content:center;gap:14px;margin:14px 0 8px;color:var(--c-brand);opacity:.5}
.testi-divider::before,.testi-divider::after{content:"";width:80px;height:0;border-top:2px dotted currentColor}
.testi-divider svg{width:28px;height:28px;flex-shrink:0}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;margin-top:32px}
.testi-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--c-line);overflow:hidden;transition:all .25s;display:flex;flex-direction:column}
.testi-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.testi-photo{aspect-ratio:4/3;background:#e7e3d8;background-size:cover;background-position:center top;position:relative}
.testi-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.15) 100%)}
.testi-body{padding:56px 28px 32px;text-align:center;position:relative;flex-grow:1;display:flex;flex-direction:column}
.testi-avatar{position:absolute;top:-44px;left:50%;transform:translateX(-50%);width:88px;height:88px;border-radius:50%;border:4px solid #fff;background-size:cover;background-position:center;box-shadow:0 6px 20px rgba(13,27,42,.18)}
.testi-name{font-family:'Bricolage Grotesque',sans-serif;font-size:18px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--c-ink);margin-bottom:6px}
.testi-loc{font-size:13.5px;color:var(--c-brand);font-weight:500;margin-bottom:20px;padding-bottom:20px;border-bottom:1px dashed var(--c-line)}
.testi-card p{font-size:14.5px;line-height:1.65;color:var(--c-ink-2);margin-bottom:22px;flex-grow:1}
.testi-stars{color:var(--c-accent);font-size:20px;letter-spacing:3px;margin-top:auto}

/* === BLOG === */
.blog{background:var(--c-bg)}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.blog-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--c-line);transition:all .25s}
.blog-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.blog-img{aspect-ratio:16/10;background:#e7e3d8 center/cover}
.blog-card:nth-child(1) .blog-img{background-image:linear-gradient(135deg,rgba(10,77,140,.18),rgba(14,107,191,.18)),url('/assets/post-card-1.webp');background-position:center;background-size:cover}
.blog-card:nth-child(2) .blog-img{background-image:linear-gradient(135deg,rgba(232,168,56,.18),rgba(205,138,28,.18)),url('/assets/post-card-2.webp');background-position:center;background-size:cover}
.blog-card:nth-child(3) .blog-img{background-image:linear-gradient(135deg,rgba(15,138,95,.18),rgba(10,77,140,.18)),url('/assets/post-card-3.webp');background-position:center;background-size:cover}
.blog-body{padding:24px}
.blog-cat{font-size:12px;font-weight:600;color:var(--c-brand);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.blog-card h4{font-size:18px;font-weight:600;margin-bottom:10px;line-height:1.35}
.blog-card p{color:var(--c-ink-2);font-size:14px;line-height:1.55;margin-bottom:14px}
.blog-meta{font-size:12.5px;color:var(--c-muted)}

/* === FAQ === */
.faq{background:#fff}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{padding:22px 0;font-size:17px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none;color:var(--c-ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:24px;color:var(--c-brand);font-weight:300;transition:transform .2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 0 22px;color:var(--c-ink-2);font-size:15px;line-height:1.65;max-width:90%}

/* === CTA STRIP === */
.cta-strip{background:linear-gradient(135deg,var(--c-brand) 0%,var(--c-ink) 100%);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta-strip::before,.cta-strip::after{content:"";position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(232,168,56,.2),transparent 70%)}
.cta-strip::before{top:-200px;left:-100px;width:500px;height:500px}
.cta-strip::after{bottom:-200px;right:-100px;width:400px;height:400px}
.cta-strip .container{position:relative}
.cta-strip h2{font-family:'Bricolage Grotesque',sans-serif;font-size:clamp(28px,3.6vw,44px);margin-bottom:18px;letter-spacing:-.02em}
.cta-strip p{font-size:18px;color:#dde6f0;max-width:620px;margin:0 auto 32px}
.cta-strip-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-strip .btn-primary{padding:17px 32px}
.cta-strip .phone-big{font-family:'Bricolage Grotesque',sans-serif;font-size:32px;font-weight:700;color:var(--c-accent);display:inline-flex;align-items:center;gap:12px;margin-top:10px}

/* === FOOTER === */
.footer{background:#06121e;color:#9eb0c6;padding:72px 0 28px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:48px}
.footer h5{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600;letter-spacing:.02em}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer a{color:#9eb0c6;transition:color .15s}
.footer a:hover{color:#fff}
.footer .brand-block .logo-text strong{color:#fff}
.footer .brand-block p{margin:18px 0;line-height:1.6}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px}
.footer-contact a{display:flex;gap:10px;align-items:flex-start}
.footer-contact svg{flex-shrink:0;margin-top:2px;color:var(--c-accent)}
.footer-bottom{padding-top:28px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:#6c7d92}
.socials{display:flex;gap:10px}
.socials a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;transition:all .2s}
.socials a:hover{background:var(--c-accent);color:var(--c-ink)}

/* === FLOATING ACTIONS === */
.float-actions{position:fixed;bottom:24px;right:24px;z-index:40;display:flex;flex-direction:column;gap:10px}
.float-btn{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--shadow-md);transition:all .2s;animation:float-pulse 2.5s infinite}
.float-btn:hover{transform:scale(1.08)}
.float-btn.zalo{background:#0068ff}
.float-btn.phone{background:#0f8a5f;animation-delay:.5s}
@keyframes float-pulse{0%,100%{box-shadow:0 4px 14px rgba(0,0,0,.2)}50%{box-shadow:0 4px 14px rgba(0,0,0,.2),0 0 0 12px rgba(255,255,255,0)}}

/* === RESPONSIVE === */
@media (max-width:1280px){
  .nav a{padding:8px 9px;font-size:13.5px}
  .logo-text span{display:none}
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .svc-card,.svc-card.feat{grid-column:span 1}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:36px}
  .region-grid{grid-template-columns:repeat(3,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid::before{display:none}
}
@media (max-width:768px){
  section{padding:64px 0}
  .container{padding:0 18px}
  .nav{display:none;position:fixed;top:0;right:0;width:84%;height:100vh;background:#fff;flex-direction:column;align-items:flex-start;padding:80px 24px 24px;gap:4px;box-shadow:-20px 0 60px rgba(0,0,0,.15);overflow-y:auto;transform:translateX(100%);transition:transform .3s}
  .nav.open{display:flex;transform:translateX(0)}
  .nav a{width:100%;font-size:16px;padding:12px 16px}
  .nav .has-sub > a::after{display:none}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;background:var(--c-bg);margin-top:4px;padding:6px}
  .menu-toggle{display:flex}
  .topbar .row.hide-mobile{display:none}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:12px}
  .hero-stats .num{font-size:26px}
  .hero-form{padding:24px}
  .usp-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .svc-grid,.proj-grid,.blog-grid,.testi-grid{grid-template-columns:1fr}
  .region-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .price-table{overflow-x:auto}
  .price-table table{min-width:560px}
  .cta-strip .phone-big{font-size:24px}
}

/* ═══ SOCIAL PROOF POPUP ═══ */
#sp-popup{position:fixed;bottom:110px;left:24px;z-index:9999;display:flex;align-items:center;gap:13px;background:#fff;border:1px solid rgba(13,27,42,.08);border-radius:16px;padding:14px 18px 14px 14px;box-shadow:0 8px 32px rgba(10,77,140,.14),0 2px 8px rgba(13,27,42,.06);max-width:320px;min-width:260px;transform:translateX(-120%);opacity:0;transition:transform .45s cubic-bezier(.16,1,.3,1),opacity .35s ease;pointer-events:none}
#sp-popup.show{transform:translateX(0);opacity:1;pointer-events:auto}
#sp-popup.hide{transform:translateX(-120%);opacity:0}
.sp-avatar{width:44px;height:44px;border-radius:50%;background:var(--c-brand);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;position:relative}
.sp-avatar::after{content:'';position:absolute;bottom:1px;right:1px;width:11px;height:11px;background:#27d27c;border-radius:50%;border:2px solid #fff}
.sp-body{flex:1;min-width:0}.sp-name{font-size:13.5px;font-weight:700;color:var(--c-ink);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sp-msg{font-size:12.5px;color:var(--c-ink-2);line-height:1.4}.sp-msg strong{color:var(--c-brand)}
.sp-time{font-size:11px;color:var(--c-muted);margin-top:4px}
.sp-close{position:absolute;top:8px;right:8px;width:20px;height:20px;border-radius:50%;background:var(--c-line);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--c-muted);transition:background .15s}
.sp-close:hover{background:#ddd}
.sp-progress{position:absolute;bottom:0;left:0;height:3px;background:var(--c-brand);border-radius:0 0 0 16px;width:100%;transform-origin:left;animation:sp-drain 6s linear forwards;border-bottom-right-radius:3px}
@keyframes sp-drain{from{transform:scaleX(1)}to{transform:scaleX(0)}}
@media (max-width:768px){
  #sp-popup{
    left:14px;
    right:86px;
    bottom:92px;
    min-width:0;
    max-width:none;
    padding:12px 36px 12px 12px;
    gap:10px;
  }
  .sp-avatar{width:38px;height:38px;font-size:18px}
  .sp-msg{font-size:12px}
  .float-actions{right:18px;bottom:18px;gap:9px}
  .float-btn{width:52px;height:52px}
}
@media (max-width:420px){
  #sp-popup{right:78px}
}
@media (max-width:768px){
  .post-page #sp-popup,
  .post-page .float-actions{display:none}
}
.header.scrolled{box-shadow:0 4px 24px rgba(10,60,120,.13)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact a,.footer-contact span{display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.72);font-size:13.5px;text-decoration:none;transition:color .15s}
.footer-contact a:hover{color:#fff}
.footer-grid h5{color:#fff;font-size:13px;font-weight:700;margin-bottom:14px;text-transform:uppercase;letter-spacing:.07em;opacity:.45}
.footer-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.footer-grid ul li a{color:rgba(255,255,255,.62);font-size:13.5px;text-decoration:none;transition:color .15s}
.footer-grid ul li a:hover{color:#fff}


/* ═══════════════════════════════════════
   LOGO — Вариант A (round image)
═══════════════════════════════════════ */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid #e8a838;
  flex-shrink: 0;
  transition: transform .2s ease, box-shadow .2s ease;
}
.logo:hover .logo-img {
  transform: scale(1.05);
  box-shadow: 0 0 0 4px rgba(232,168,56,.2);
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.logo-text strong {
  font-family: 'Bricolage Grotesque', 'Be Vietnam Pro', sans-serif;
  font-size: 17px;
  font-weight: 800;
  color: var(--c-brand);
  letter-spacing: -.01em;
  white-space: nowrap;
}
.logo-sub {
  font-size: 10px;
  color: var(--c-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* ═══════════════════════════════════════
   MOBILE NAV — полноценный drawer
═══════════════════════════════════════ */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(13,27,42,.45);
  z-index: 49;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity .25s;
}
.nav-overlay.active {
  display: block;
  opacity: 1;
}

@media (max-width: 900px) {

  /* Topbar — скрываем лишнее */
  .topbar { display: none; }

  /* Header compact */
  .header .container {
    padding-top: 10px;
    padding-bottom: 10px;
    gap: 10px;
  }

  /* Logo text сжимаем */
  .logo-text strong { font-size: 15px; }
  .logo-sub { display: none; }
  .logo-img { width: 44px; height: 44px; }

  /* Nav превращается в drawer */
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    max-width: 84vw;
    height: 100dvh;
    background: var(--c-surface, #fff);
    z-index: 100;
    flex-direction: column;
    padding: 72px 0 32px;
    overflow-y: auto;
    box-shadow: -8px 0 40px rgba(10,30,55,.15);
    transform: translateX(110%);
    transition: transform .28s cubic-bezier(.16,1,.3,1);
    display: none;
    gap: 0;
    border-radius: 0;
    align-items: stretch;
  }
  .nav.open {
    display: flex;
    transform: translateX(0);
  }

  /* Nav links внутри drawer */
  .nav > a,
  .nav .has-sub > a {
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 0;
    border-bottom: 1px solid var(--c-line, #e7e3d8);
    color: var(--c-ink);
  }
  .nav > a:hover,
  .nav .has-sub > a:hover {
    background: var(--c-bg, #fbfaf6);
  }
  .nav > a.active,
  .nav .has-sub > a.active {
    color: var(--c-brand);
    background: rgba(10,77,140,.05);
  }

  /* Submenu в drawer — всегда видно */
  .has-sub { position: static; }
  .submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 0;
    background: rgba(10,77,140,.03);
    border-bottom: 1px solid var(--c-line, #e7e3d8);
  }
  .submenu a {
    padding: 11px 24px 11px 38px;
    font-size: 14px;
    border-radius: 0;
    color: var(--c-ink-2);
  }
  .has-sub > a::after { display: none; }

  /* CTA кнопка звонка */
  .cta-call { padding: 9px 14px; font-size: 13px; }
  .cta-label { display: none; }
  .cta-call svg { width: 18px; height: 18px; }

  /* Hamburger видим */
  .menu-toggle { display: flex; }

  /* Drawer close button */
  .nav::before {
    content: "✕";
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 20px;
    color: var(--c-muted, #7a8794);
    cursor: pointer;
    pointer-events: none;
  }
}

@media (max-width: 420px) {
  .logo-text strong { font-size: 13px; max-width: 160px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .logo-img { width: 40px; height: 40px; }
  .cta-call { padding: 8px 12px; }
}


/* ═══ MOBILE FIXES — price table hint + CTA strip ═══ */
@media (max-width: 768px) {
  /* Scroll hint for price table */
  .price-table::after {
    content: "⟵ Vuốt để xem đầy đủ ⟶";
    display: block;
    text-align: center;
    font-size: 11px;
    color: var(--c-muted, #7a8794);
    padding: 8px 0 4px;
    letter-spacing: .04em;
  }

  /* CTA strip buttons stack vertically */
  .cta-strip .hero-cta,
  .cta-strip .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-strip .hero-cta a,
  .cta-strip .cta-actions a {
    text-align: center;
  }

  /* Hero stats on very small screen */
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .hero-stats .num { font-size: 22px; }

  /* Process grid 1 col on mobile */
  .process-grid { grid-template-columns: 1fr; }

  /* USP grid 1 col on very small */
}
@media (max-width: 420px) {
  .usp-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .region-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 769px) {
  .price-table::after { display: none; }
}