:root {
  --primary: #0E5E3F; --primary-dark: #083B27; --primary-light: #1B8A5A;
  --secondary: #122E55; --secondary-light: #1E4380;
  --accent: #F59E0B; --accent-dark: #D97706;
  --bg: #F8FAFC; --bg-alt: #EEF2F1;
  --text: #0F172A; --text-muted: #475569;
  --border: #E2E8F0; --white: #FFFFFF;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.15);
  --radius: 12px; --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, sans-serif; line-height: 1.6; color: var(--text); background: var(--white); }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; font-family: inherit; }
img { max-width: 100%; height: auto; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: 1.5rem; }

.section-tag { display: inline-block; padding: 6px 14px; background: rgba(14,94,63,0.08); color: var(--primary); border-radius: 999px; font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; }
.section-title { text-align: center; margin-bottom: 16px; }
.section-subtitle { text-align: center; color: var(--text-muted); max-width: 680px; margin: 0 auto 56px; font-size: 1.05rem; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: var(--radius); font-weight: 600; font-size: 0.95rem; transition: var(--transition); white-space: nowrap; }
.btn-primary { background: var(--accent); color: white; box-shadow: 0 4px 14px rgba(245,158,11,0.35); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); }
.btn-outline { background: transparent; color: white; border: 2px solid rgba(255,255,255,0.4); }
.btn-outline:hover { background: white; color: var(--primary); }
.btn-secondary { background: var(--primary); color: white; }
.btn-secondary:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* Header */
.header { position: fixed; top: 0; left: 0; right: 0; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); z-index: 1000; transition: var(--transition); }
.header.scrolled { box-shadow: var(--shadow-md); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.3rem; color: var(--primary-dark); }
.logo-mark { width: 40px; height: 40px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: white; font-weight: 900; }
.logo small { font-size: 0.7rem; color: var(--text-muted); font-weight: 500; display: block; line-height: 1; margin-top: 2px; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { font-weight: 500; padding: 8px 0; position: relative; transition: var(--transition); }
.nav a:hover, .nav a.active { color: var(--primary); }
.nav a.active::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--primary); }
.mobile-toggle { display: none; background: transparent; width: 40px; height: 40px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; }
.mobile-toggle span { width: 22px; height: 2px; background: var(--text); }
.nav-cta-link { background: linear-gradient(135deg, var(--accent), #FCD34D); color: white !important; padding: 8px 16px; border-radius: 8px; font-weight: 600; }
.nav.mobile-open .nav-cta-link { background: linear-gradient(135deg, var(--accent), #FCD34D); display: inline-block; align-self: flex-start; margin: 6px 0; }

/* Hero */
.hero { position: relative; min-height: 90vh; display: flex; align-items: center; padding: 120px 0 80px; background: linear-gradient(135deg, #062D1E 0%, #0E5E3F 50%, #122E55 100%); color: white; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 20% 50%, rgba(245,158,11,0.15), transparent 50%), radial-gradient(circle at 80% 20%, rgba(27,138,90,0.2), transparent 40%); }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center; }
.hero-tag { display: inline-block; padding: 6px 14px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: 999px; font-size: 0.85rem; margin-bottom: 24px; }
.hero h1 { color: white; margin-bottom: 24px; }
.hero h1 .highlight { color: var(--accent); }
.hero p { color: rgba(255,255,255,0.85); font-size: 1.1rem; margin-bottom: 32px; max-width: 540px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.15); }
.hero-stat .num { font-size: 2.25rem; font-weight: 800; line-height: 1; }
.hero-stat .label { font-size: 0.85rem; color: rgba(255,255,255,0.7); margin-top: 6px; }
.hero-visual { aspect-ratio: 4/3; max-height: 540px; min-height: 320px; border-radius: var(--radius-lg); background: linear-gradient(135deg, #0E5E3F, #1B8A5A); position: relative; box-shadow: var(--shadow-lg); display: flex; align-items: flex-end; padding: 28px; overflow: hidden; }
.hero-visual-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; border-radius: var(--radius-lg); }
.hero-visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 35%, rgba(0,0,0,0.7) 100%); border-radius: var(--radius-lg); pointer-events: none; }
.hero-visual-content { position: relative; z-index: 1; color: white; }
.hero-visual-svg { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0.6; }

section { padding: 90px 0; }
.section-light { background: var(--bg); }
.section-dark { background: var(--secondary); color: white; }
.section-dark h2, .section-dark h3 { color: white; }

/* Cards & Grid */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 24px; }
.feature-card { background: white; padding: 36px 28px; border-radius: var(--radius); border: 1px solid var(--border); transition: var(--transition); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.feature-icon { width: 56px; height: 56px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; color: white; font-size: 1.5rem; }
.feature-card h3 { margin-bottom: 10px; font-size: 1.2rem; }
.feature-card p { color: var(--text-muted); font-size: 0.95rem; }

.product-filter { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 48px; }
.filter-btn { padding: 10px 22px; border-radius: 999px; background: white; color: var(--text); font-weight: 500; border: 1.5px solid var(--border); transition: var(--transition); }
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px,1fr)); gap: 28px; }
.product-card { background: white; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); display: flex; flex-direction: column; }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-thumb { height: 200px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); display: flex; align-items: center; justify-content: center; font-size: 4rem; position: relative; overflow: hidden; }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }
.case-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.case-thumb { overflow: hidden; }
.case-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.65)); pointer-events: none; }
.case-thumb > * { position: relative; z-index: 1; }
.news-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.news-thumb { overflow: hidden; }
.news-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.6)); pointer-events: none; }
.news-thumb > * { position: relative; z-index: 1; }
.product-badge { position: absolute; top: 14px; right: 14px; background: var(--accent); color: white; font-size: 0.75rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
.product-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.product-cat { font-size: 0.75rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 8px; }
.product-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.product-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; flex: 1; }
.product-specs { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 16px; padding: 12px; background: var(--bg); border-radius: 8px; }
.product-cta { display: flex; justify-content: space-between; align-items: center; padding-top: 16px; border-top: 1px solid var(--border); }
.product-price { color: var(--primary-dark); font-weight: 700; font-size: 0.9rem; }
.product-link { color: var(--primary); font-weight: 600; font-size: 0.9rem; }

/* Audience */
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.audience-card { background: white; padding: 48px 40px; border-radius: var(--radius-lg); border: 1px solid var(--border); position: relative; overflow: hidden; transition: var(--transition); }
.audience-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.audience-card::before { content: ''; position: absolute; top: 0; left: 0; width: 6px; height: 100%; background: linear-gradient(180deg, var(--primary), var(--accent)); }
.audience-icon { width: 64px; height: 64px; background: var(--bg); border-radius: 16px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; font-size: 1.8rem; }
.audience-list { list-style: none; margin-top: 24px; }
.audience-list li { padding: 8px 0 8px 28px; position: relative; }
.audience-list li::before { content: '✓'; position: absolute; left: 0; color: var(--primary); font-weight: 800; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; text-align: center; }
.stat-num { font-size: 3rem; font-weight: 800; background: linear-gradient(135deg, var(--accent), #FCD34D); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; }
.stat-label { color: rgba(255,255,255,0.85); margin-top: 8px; font-size: 0.95rem; }

/* CTA */
.cta { background: linear-gradient(135deg, var(--primary-dark), var(--secondary)); color: white; border-radius: var(--radius-lg); padding: 64px 56px; text-align: center; position: relative; overflow: hidden; }
.cta::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 30% 20%, rgba(245,158,11,0.2), transparent 50%); }
.cta > * { position: relative; }
.cta h2 { color: white; margin-bottom: 12px; }
.cta p { color: rgba(255,255,255,0.9); margin-bottom: 32px; max-width: 600px; margin: 0 auto 32px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Page header */
.page-header { background: linear-gradient(135deg, #062D1E 0%, #0E5E3F 50%, #122E55 100%); color: white; padding: 160px 0 80px; text-align: center; position: relative; overflow: hidden; }
.page-header::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 80% 30%, rgba(245,158,11,0.2), transparent 50%); }
.page-header > * { position: relative; }
.page-header h1 { color: white; margin-bottom: 12px; }
.page-header p { color: rgba(255,255,255,0.85); max-width: 700px; margin: 0 auto; font-size: 1.05rem; }
.breadcrumb { font-size: 0.9rem; margin-top: 20px; color: rgba(255,255,255,0.7); }
.breadcrumb a { color: var(--accent); }

/* News */
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px,1fr)); gap: 28px; }
.news-card { background: white; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.news-thumb { height: 180px; background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); position: relative; display: flex; align-items: flex-end; padding: 16px; color: white; }
.news-cat { position: absolute; top: 14px; left: 14px; background: rgba(255,255,255,0.15); color: white; font-size: 0.75rem; padding: 4px 10px; border-radius: 999px; backdrop-filter: blur(8px); }
.news-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.news-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.news-meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; }
.news-card p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 14px; flex: 1; }
.news-link { color: var(--primary); font-weight: 600; font-size: 0.9rem; }

/* News article */
.article { max-width: 800px; margin: 0 auto; }
.article-meta { color: var(--text-muted); margin-bottom: 24px; }
.article-content { font-size: 1.05rem; line-height: 1.8; color: var(--text); }
.article-content p { margin-bottom: 18px; }
.article-content h2 { margin: 32px 0 16px; }
.article-content h3 { margin: 28px 0 12px; }
.article-content ul, .article-content ol { margin: 16px 0 16px 28px; }
.article-content li { margin-bottom: 8px; }
.article-content strong { color: var(--primary-dark); }
.article-content blockquote { border-left: 4px solid var(--primary); padding: 8px 24px; margin: 24px 0; background: var(--bg); border-radius: 0 8px 8px 0; }
.article-content code { background: var(--bg); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }

/* Project card */
.case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px,1fr)); gap: 28px; }
.case-card { background: white; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-thumb { height: 180px; background: linear-gradient(135deg, var(--primary), var(--secondary)); position: relative; display: flex; align-items: flex-end; padding: 20px; color: white; }
.case-tag { position: absolute; top: 16px; left: 16px; padding: 4px 10px; background: rgba(255,255,255,0.15); border-radius: 999px; font-size: 0.8rem; backdrop-filter: blur(8px); }
.case-body { padding: 24px; }
.case-body h3 { margin-bottom: 8px; font-size: 1.1rem; }
.case-body p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 14px; }
.case-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 0.85rem; color: var(--text-muted); border-top: 1px solid var(--border); padding-top: 14px; }

/* Footer */
.footer { background: var(--secondary); color: rgba(255,255,255,0.8); padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.95rem; line-height: 1.7; max-width: 360px; }
.footer-col h4 { color: white; font-size: 1.05rem; margin-bottom: 20px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,0.7); transition: var(--transition); font-size: 0.95rem; }
.footer-col a:hover { color: var(--accent); }
.footer-contact-item { display: flex; gap: 12px; margin-bottom: 14px; align-items: flex-start; font-size: 0.95rem; }
.footer-contact-item .icon { flex-shrink: 0; width: 36px; height: 36px; background: rgba(255,255,255,0.08); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; font-size: 0.9rem; }
.socials { display: flex; gap: 12px; margin-top: 20px; }
.socials a { width: 36px; height: 36px; background: rgba(255,255,255,0.08); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.7); transition: var(--transition); }
.socials a:hover { background: var(--accent); color: white; }

/* Forms */
.contact-section { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; }
.contact-info-card { background: linear-gradient(135deg, var(--primary-dark), var(--secondary)); color: white; padding: 40px; border-radius: var(--radius-lg); }
.contact-info-card h3 { color: white; margin-bottom: 12px; }
.contact-info-list { list-style: none; margin-top: 24px; }
.contact-info-list li { display: flex; gap: 14px; margin-bottom: 18px; }
.contact-info-list .icon { width: 40px; height: 40px; background: rgba(255,255,255,0.1); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--accent); flex-shrink: 0; }
.contact-info-list strong { color: white; display: block; margin-bottom: 4px; font-size: 0.92rem; }
.contact-info-list span { color: rgba(255,255,255,0.85); font-size: 0.95rem; }
.contact-form { background: white; padding: 40px; border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-md); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 18px; }
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-field label { font-weight: 500; font-size: 0.92rem; }
.form-field input, .form-field select, .form-field textarea { padding: 12px 16px; border-radius: 10px; border: 1.5px solid var(--border); font-size: 0.95rem; font-family: inherit; transition: var(--transition); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: none; border-color: var(--primary); }
.form-field textarea { resize: vertical; min-height: 120px; }

/* Float */
.float-contact { position: fixed; bottom: 24px; right: 24px; z-index: 999; 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: white; box-shadow: var(--shadow-lg); transition: var(--transition); font-weight: 700; font-size: 0.85rem; }
.float-btn:hover { transform: scale(1.1); }
.float-zalo { background: #0068FF; }
.float-phone { background: var(--primary); }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s, transform 0.8s; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ========== TABLET (≤980px) ========== */
@media (max-width: 980px) {
  .container { padding: 0 20px; }
  .nav, .nav-cta { display: none; }
  .mobile-toggle { display: flex; }
  .nav.mobile-open {
    display: flex; position: absolute; top: 76px; left: 0; right: 0;
    background: white; flex-direction: column; padding: 16px 20px;
    gap: 0; box-shadow: var(--shadow-md);
    max-height: calc(100vh - 76px); overflow-y: auto;
  }
  .nav.mobile-open a { padding: 14px 0; border-bottom: 1px solid var(--border); width: 100%; font-size: 1rem; }
  .nav.mobile-open a:last-child { border-bottom: none; }

  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero-inner, .audience-grid, .contact-section { grid-template-columns: 1fr; gap: 40px; }
  .hero p { font-size: 1rem; max-width: 100%; }
  .hero-actions { gap: 12px; margin-bottom: 40px; }
  .hero-visual { aspect-ratio: 16/10; max-height: 380px; min-height: 240px; padding: 20px; }
  .hero-stats { gap: 16px; padding-top: 24px; }
  .hero-stat .num { font-size: 1.6rem; }

  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .stat-num { font-size: 2.2rem; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  section { padding: 60px 0; }
  .form-row { grid-template-columns: 1fr; }

  .cta { padding: 48px 32px; }
  .audience-card { padding: 36px 28px; }
  .contact-form { padding: 28px; }
  .contact-info-card { padding: 32px 28px; }
  .page-header { padding: 130px 0 60px; }
}

/* ========== MOBILE (≤640px) ========== */
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .logo img { height: 36px !important; }
  .nav.mobile-open { top: 64px; max-height: calc(100vh - 64px); }

  /* Compact hero */
  .hero { padding: 88px 0 48px; }
  h1 { font-size: clamp(1.6rem, 7vw, 2.2rem); }
  h2 { font-size: clamp(1.4rem, 5.5vw, 1.9rem); }
  h3 { font-size: 1.15rem; }
  .hero-tag { font-size: 0.78rem; padding: 5px 12px; margin-bottom: 18px; }
  .hero p { font-size: 0.95rem; margin-bottom: 24px; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1 1 calc(50% - 6px); justify-content: center; padding: 12px 16px; font-size: 0.9rem; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; padding-top: 20px; }
  .hero-stat { text-align: left; }
  .hero-stat .num { font-size: 1.25rem; }
  .hero-stat .label { font-size: 0.72rem; line-height: 1.3; }
  .hero-visual { aspect-ratio: 16/11; min-height: 200px; padding: 16px; border-radius: 14px; }

  /* Sections */
  section { padding: 48px 0; }
  .section-subtitle { font-size: 0.95rem; margin-bottom: 36px; }
  .section-tag { font-size: 0.78rem; padding: 5px 12px; }

  /* Audience cards */
  .audience-card { padding: 28px 22px; border-radius: 16px; }
  .audience-icon { width: 52px; height: 52px; font-size: 1.5rem; margin-bottom: 18px; }

  /* Stats */
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px 16px; }
  .stat-num { font-size: 1.9rem; }
  .stat-label { font-size: 0.85rem; }

  /* CTA */
  .cta { padding: 40px 22px; border-radius: 16px; }
  .cta-buttons { flex-direction: column; gap: 12px; }
  .cta-buttons .btn { width: 100%; justify-content: center; }

  /* Page header */
  .page-header { padding: 110px 0 48px; }
  .page-header h1 { font-size: clamp(1.5rem, 6.5vw, 2rem); }
  .page-header p { font-size: 0.95rem; }

  /* Products / News / Cases */
  .products-grid, .news-grid, .case-grid { grid-template-columns: 1fr; gap: 20px; }
  .product-thumb { height: 200px; }
  .product-body, .news-body, .case-body { padding: 18px; }
  .product-card h3, .news-card h3, .case-body h3 { font-size: 1.05rem; }
  .product-filter { gap: 8px; margin-bottom: 32px; }
  .filter-btn { padding: 8px 16px; font-size: 0.85rem; }

  /* Forms */
  .contact-form { padding: 22px 18px; border-radius: 14px; }
  .contact-info-card { padding: 26px 22px; border-radius: 14px; }
  .form-field input, .form-field select, .form-field textarea { padding: 11px 14px; font-size: 16px; /* prevent iOS zoom */ }
  .btn { padding: 12px 22px; font-size: 0.92rem; }

  /* Footer */
  .footer { padding: 50px 0 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; margin-bottom: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; font-size: 0.85rem; }

  /* Float buttons - smaller on mobile + bottom-right */
  .float-contact { bottom: 16px; right: 16px; gap: 8px; }
  .float-btn { width: 48px; height: 48px; font-size: 0.78rem; }

  /* Article */
  .article-content { font-size: 0.98rem; line-height: 1.7; }
  .article-content h2 { font-size: 1.4rem; margin: 24px 0 12px; }
  .article-content h3 { font-size: 1.15rem; margin: 20px 0 10px; }

  /* Feature cards */
  .features { gap: 16px; }
  .feature-card { padding: 26px 22px; }
  .feature-icon { width: 48px; height: 48px; margin-bottom: 16px; font-size: 1.25rem; }
}

/* ========== SMALL MOBILE (≤380px) ========== */
@media (max-width: 380px) {
  .container { padding: 0 14px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stat:nth-child(3) { grid-column: span 2; }
  .stats-grid { grid-template-columns: 1fr; }
}

/* ========== TOUCH DEVICES — disable hover transforms ========== */
@media (hover: none) {
  .feature-card:hover, .product-card:hover, .news-card:hover, .case-card:hover, .audience-card:hover {
    transform: none;
  }
}