/* ===== Greenfix24h Landing ===== */
:root{
  --blue-900:#0b2a6b;
  --blue-800:#1e40af;
  --blue-700:#1d4ed8;
  --blue-600:#2563eb;
  --blue-500:#3b82f6;
  --blue-400:#60a5fa;
  --sky-400:#38bdf8;
  --sky-100:#e0f2fe;
  --white:#ffffff;
  --gray-50:#f8fafc;
  --gray-100:#f1f5f9;
  --gray-200:#e2e8f0;
  --gray-500:#64748b;
  --gray-700:#334155;
  --gray-900:#0f172a;
  --shadow:0 10px 30px rgba(29,78,216,.12);
  --shadow-lg:0 20px 50px rgba(29,78,216,.18);
  --radius:14px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  color:var(--gray-900);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}

.container{max-width:1200px;margin:0 auto;padding:0 20px}
.hl{color:var(--blue-600)}

/* ===== Header ===== */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--gray-100);
  box-shadow:0 2px 10px rgba(0,0,0,.04);
}
.nav{display:flex;align-items:center;gap:20px;padding:14px 20px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:44px;height:44px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-weight:800;font-size:18px;color:var(--blue-700)}
.brand-sub{font-size:11px;color:var(--gray-500);text-transform:uppercase;letter-spacing:.5px}

.menu{display:flex;gap:6px;margin-left:auto}
.menu a{
  padding:10px 14px;border-radius:8px;font-weight:500;font-size:15px;
  transition:.2s;color:var(--gray-700);
}
.menu a:hover{background:var(--sky-100);color:var(--blue-700)}

.btn-hotline{
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,var(--blue-600),var(--blue-500));
  color:#fff!important;font-weight:700;padding:11px 18px;border-radius:999px;
  box-shadow:var(--shadow);
}
.btn-hotline .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.25);animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

.hamburger{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:3px;background:var(--blue-700);border-radius:2px}

/* ===== Hero ===== */
.hero{
  background:linear-gradient(135deg,#dbeafe 0%,#eff6ff 50%,#ffffff 100%);
  padding:60px 0 80px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;top:-100px;right:-100px;
  width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(59,130,246,.15),transparent);
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;position:relative}

.badge{
  display:inline-block;background:var(--white);color:var(--blue-700);
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  box-shadow:var(--shadow);margin-bottom:18px;
}
.hero h1{
  font-size:clamp(36px,5vw,60px);font-weight:900;line-height:1.05;
  color:var(--blue-900);letter-spacing:-1px;
}
.hero h1 .hl{
  background:linear-gradient(135deg,var(--blue-600),var(--sky-400));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:17px;color:var(--gray-700);margin:18px 0 22px;max-width:520px}

.hero-pill{
  display:inline-block;background:var(--white);
  border:2px dashed var(--blue-500);color:var(--blue-700);
  padding:10px 22px;border-radius:999px;font-weight:700;font-size:14px;
  letter-spacing:1px;margin-bottom:24px;
}

.hero-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:16px;
  cursor:pointer;border:0;transition:.2s;text-align:center;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue-600),var(--blue-500));
  color:#fff;box-shadow:var(--shadow-lg);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 25px 60px rgba(29,78,216,.3)}
.btn-ghost{background:var(--white);color:var(--blue-700);border:2px solid var(--blue-500)}
.btn-ghost:hover{background:var(--sky-100)}
.btn-white{background:#fff;color:var(--blue-700)!important;box-shadow:var(--shadow-lg);font-size:18px;padding:16px 32px}
.btn.full{width:100%}

.discount{
  margin-top:20px;display:inline-block;
  background:#fef3c7;color:#92400e;padding:8px 16px;border-radius:8px;font-weight:600;
}
.discount strong{color:#dc2626;font-size:20px}

.hero-image{position:relative}
.hero-image img{
  border-radius:24px;box-shadow:var(--shadow-lg);
  border:6px solid #fff;
}

/* ===== Quick info ===== */
.quick{margin-top:-40px;position:relative;z-index:5}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quick-card{
  background:#fff;padding:22px;border-radius:var(--radius);
  display:flex;gap:14px;align-items:center;box-shadow:var(--shadow);
  border:1px solid var(--gray-100);transition:.2s;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.qi{font-size:32px;width:60px;height:60px;border-radius:12px;
  background:var(--sky-100);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.quick-card h4{font-size:16px;color:var(--blue-700);margin-bottom:2px}
.quick-card p{font-size:14px;color:var(--gray-500)}

/* ===== Intro ===== */
.intro{padding:80px 0 40px}
.intro-inner{max-width:850px;margin:0 auto;text-align:center}
.intro h2{font-size:32px;color:var(--blue-900);margin-bottom:20px;font-weight:800}
.intro p{margin-bottom:14px;color:var(--gray-700);font-size:16px}
.intro a{color:var(--blue-600);font-weight:600}

/* ===== Sections ===== */
.section-title{
  text-align:center;font-size:clamp(26px,3.5vw,38px);font-weight:800;
  color:var(--blue-900);margin-bottom:40px;
}
.section-title.left{text-align:left;margin-bottom:14px}

/* ===== Why ===== */
.why{padding:60px 0;background:linear-gradient(180deg,#fff,var(--gray-50))}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why-card{
  background:#fff;padding:30px 24px;border-radius:16px;
  box-shadow:var(--shadow);border:1px solid var(--gray-100);
  transition:.25s;text-align:center;
}
.why-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--blue-400)}
.why-icon{
  width:72px;height:72px;margin:0 auto 16px;
  background:linear-gradient(135deg,var(--blue-600),var(--sky-400));
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:32px;color:#fff;box-shadow:0 8px 20px rgba(59,130,246,.3);
}
.why-card h3{color:var(--blue-700);margin-bottom:10px;font-size:18px}
.why-card p{color:var(--gray-700);font-size:14px}

/* ===== Services ===== */
.services{padding:80px 0;background:#fff}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{
  background:#fff;border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--gray-100);
  transition:.25s;display:flex;flex-direction:column;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.service-img{
  height:200px;overflow:hidden;background:var(--gray-100);
}
.service-img img{width:100%;height:100%;object-fit:cover;display:block;transition:.4s}
.service-card:hover .service-img img{transform:scale(1.06)}
.service-card h3{padding:18px 20px 8px;color:var(--blue-700);font-size:17px}
.service-card p{padding:0 20px;color:var(--gray-700);font-size:14px;flex:1}
.link-arrow{
  display:inline-block;margin:16px 20px 20px;color:var(--blue-600);
  font-weight:600;font-size:14px;
}
.link-arrow:hover{color:var(--blue-800)}

/* ===== CTA Banner ===== */
.cta-banner{
  background:linear-gradient(135deg,var(--blue-700),var(--blue-500));
  padding:50px 0;color:#fff;position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 80% 50%,rgba(255,255,255,.1),transparent);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;flex-wrap:wrap}
.cta-inner h2{font-size:28px;font-weight:800;margin-bottom:6px}
.cta-inner p{opacity:.9;font-size:15px}

/* ===== Commit ===== */
.commit{padding:80px 0;background:var(--gray-50)}
.commit-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.commit-list li{
  background:#fff;padding:16px 20px;border-radius:10px;margin-bottom:12px;
  box-shadow:0 4px 12px rgba(0,0,0,.04);border-left:4px solid var(--blue-500);
  font-weight:500;color:var(--gray-700);
}

/* ===== Gallery ===== */
.gallery{padding:80px 0;background:#fff}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.g-item{
  aspect-ratio:4/3;border-radius:14px;overflow:hidden;
  box-shadow:var(--shadow);transition:.25s;cursor:pointer;background:var(--gray-100);
}
.g-item img{width:100%;height:100%;object-fit:cover;display:block;transition:.4s}
.g-item:hover{transform:scale(1.03);box-shadow:var(--shadow-lg)}
.g-item:hover img{transform:scale(1.08)}

/* ===== Contact ===== */
.contact{padding:80px 0;background:linear-gradient(180deg,var(--gray-50),#fff)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}
.contact-info h2{font-size:32px;color:var(--blue-900);margin-bottom:14px;font-weight:800}
.contact-info > p{color:var(--gray-700);margin-bottom:24px}
.info-list li{
  display:flex;gap:14px;padding:14px;background:#fff;border-radius:12px;
  margin-bottom:12px;box-shadow:0 4px 12px rgba(0,0,0,.04);
}
.info-list span{
  font-size:20px;width:44px;height:44px;flex-shrink:0;
  background:var(--sky-100);border-radius:10px;
  display:flex;align-items:center;justify-content:center;
}
.info-list div{display:flex;flex-direction:column;line-height:1.4}
.info-list strong{font-size:13px;color:var(--gray-500);font-weight:500;text-transform:uppercase;letter-spacing:.5px}
.info-list a{color:var(--blue-700);font-weight:600}

.contact-form{
  background:#fff;padding:32px;border-radius:16px;box-shadow:var(--shadow-lg);
  border:1px solid var(--gray-100);
}
.contact-form h3{color:var(--blue-700);margin-bottom:18px;font-size:22px}
.contact-form label{
  display:block;margin-bottom:14px;font-size:14px;font-weight:600;color:var(--gray-700);
}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;margin-top:6px;padding:12px 14px;border:2px solid var(--gray-200);
  border-radius:10px;font:inherit;background:var(--gray-50);transition:.2s;
}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  outline:0;border-color:var(--blue-500);background:#fff;
}
.form-note{margin-top:10px;font-size:14px;color:#16a34a;font-weight:600;text-align:center}

/* ===== Footer ===== */
.footer{background:var(--blue-900);color:#cbd5e1;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1.2fr;gap:40px}
.footer .brand-name{color:#fff}
.footer .brand-sub{color:#94a3b8}
.footer p{margin-top:14px;color:#94a3b8;font-size:14px}
.footer h4{color:#fff;margin-bottom:14px;font-size:16px}
.footer ul li{margin-bottom:8px;font-size:14px}
.footer a:hover{color:#fff}
.copyright{
  text-align:center;padding:24px 20px;margin-top:50px;
  border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#94a3b8;
}

/* ===== Floating ===== */
.floating{
  position:fixed;right:18px;bottom:18px;z-index:99;
  display:flex;flex-direction:column;gap:10px;
}
.float-btn{
  width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:22px;
  box-shadow:0 10px 25px rgba(0,0,0,.2);transition:.2s;
}
.float-btn:hover{transform:scale(1.1)}
.float-btn.call{background:linear-gradient(135deg,#16a34a,#22c55e);animation:bounce 2s infinite}
.float-btn.zalo{background:linear-gradient(135deg,#0068ff,#0084ff)}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* ===== Responsive ===== */
@media (max-width: 960px){
  .menu{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:14px;box-shadow:var(--shadow);gap:0}
  .menu.open{display:flex}
  .menu a{padding:14px}
  .hamburger{display:flex}
  .nav{position:relative}
  .hero-grid,.commit-grid,.contact-grid,.footer-grid{grid-template-columns:1fr;gap:32px}
  .hero{padding:40px 0 60px}
  .hero-image{order:-1}
  .quick-grid,.why-grid,.services-grid,.gallery-grid{grid-template-columns:1fr 1fr;gap:14px}
  .cta-inner{flex-direction:column;text-align:center}
}
@media (max-width: 560px){
  .btn-hotline span:not(.dot){display:none}
  .btn-hotline{padding:11px 14px}
  .quick-grid,.why-grid,.services-grid,.gallery-grid{grid-template-columns:1fr}
  .hero h1{font-size:36px}
  .intro,.why,.services,.commit,.gallery,.contact{padding:50px 0}
  .contact-form{padding:22px}
  .btn{width:100%;font-size:15px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .floating{right:12px;bottom:12px}
  .float-btn{width:46px;height:46px;font-size:18px}
}