/* ============================================================
   DUC TIEN INDUSTRIAL - Company website
   Brand colors: #BD2D3B red / #194088 blue / #F4E7C5 beige
   ============================================================ */

:root {
  --red: #BD2D3B;
  --red-dark: #98202B;
  --blue: #194088;
  --blue-dark: #102B5C;
  --beige: #F4E7C5;
  --dark: #262D40;
  --gray: #5B6476;
  --light: #F5F6F8;
  --white: #FFFFFF;
  --border: #E4E7EC;
  --shadow: 0 10px 30px rgba(38, 45, 64, 0.08);
  --shadow-lg: 0 20px 50px rgba(38, 45, 64, 0.15);
  --radius: 14px;
  --font-head: 'Montserrat', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --container: 1160px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.25; font-weight: 700; }

/* ============ TOPBAR ============ */
.topbar {
  background: var(--dark);
  color: #C6CBD8;
  font-size: 13.5px;
  padding: 8px 0;
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topbar-contact { display: flex; gap: 22px; }
.topbar a { display: inline-flex; align-items: center; gap: 7px; color: #C6CBD8; transition: color .2s; }
.topbar a:hover { color: var(--beige); }
.topbar-social a { font-size: 15px; }

/* ============ HEADER ============ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.header.scrolled { box-shadow: 0 6px 24px rgba(38, 45, 64, 0.1); }
.brand-logo { height: 46px; width: auto; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--dark);
  padding: 9px 14px;
  position: relative;
  transition: color .2s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 2.5px;
  border-radius: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.nav-link:hover { color: var(--red); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--red); }
.nav-link.active::after { transform: scaleX(1); }

.lang-switch { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.lang-btn { margin-left: 8px; }
.lang-btn .lang-en, .lang-btn .lang-vi {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.lang-btn .lang-vi { display: none; }
.lang-btn.show-vi .lang-vi { display: inline-flex; }
.lang-btn.show-vi .lang-en { display: none; }
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.5px;
  color: var(--dark);
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 6px 11px;
  cursor: pointer;
  transition: all .2s;
}
.lang-btn .flag {
  display: inline-block;
  width: 21px; height: 14px;
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(38, 45, 64, 0.12);
}
.lang-btn .flag svg { display: block; width: 100%; height: 100%; }
.lang-btn:hover { border-color: var(--red); color: var(--red); }
.lang-btn.active {
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 26px; height: 3px; background: var(--dark); border-radius: 3px; transition: transform .25s, opacity .25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============ HERO ============ */
.hero {
  position: relative;
  color: var(--white);
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 14s ease-out forwards;
}
@keyframes heroZoom { to { transform: scale(1); } }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(16, 43, 92, 0.88) 0%, rgba(25, 64, 136, 0.62) 48%, rgba(25, 64, 136, 0.18) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 80px 24px;
  width: 100%;
}
.hero-eyebrow {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 12.5px;
  letter-spacing: 2.5px;
  color: var(--beige);
  margin-bottom: 18px;
}
.hero-title { font-size: clamp(30px, 4.2vw, 48px); font-weight: 800; margin-bottom: 18px; }
.hero-sub { font-size: 16px; color: rgba(255, 255, 255, 0.9); margin-bottom: 32px; max-width: 560px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid rgba(255,255,255,.6); border-radius: 14px; z-index: 2;
}
.hero-scroll::after {
  content: ""; position: absolute; top: 7px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 9px; border-radius: 2px; background: var(--beige);
  animation: scrollDot 1.6s ease-in-out infinite;
}
@keyframes scrollDot { 0% { opacity: 1; } 70% { opacity: 0; transform: translate(-50%, 12px); } 100% { opacity: 0; } }

/* Hero card nổi */
.hero-card {
  background: rgba(255, 255, 255, 0.97);
  color: var(--dark);
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(8px);
  animation: cardIn .8s .25s ease both;
}
@keyframes cardIn { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
.hero-card-title {
  font-size: 19px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
  color: var(--dark);
}
.hero-card-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 18px; }
.hero-card-stats div {
  background: var(--light);
  border-radius: 10px;
  padding: 12px 8px;
  text-align: center;
}
.hero-card-stats strong {
  display: block;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 800;
  color: var(--red);
  line-height: 1.1;
}
.hero-card-stats span { font-size: 11.5px; color: var(--gray); }
.hero-card-list { margin-bottom: 20px; }
.hero-card-list li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  color: var(--dark);
  margin-bottom: 9px;
}
.hero-card-list li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 1px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: rgba(189, 45, 59, 0.12);
  color: var(--red);
  font-size: 11px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14.5px;
  padding: 14px 30px;
  border-radius: 10px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .2s;
}
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(189, 45, 59, 0.3); }
.btn-outline { border-color: var(--white); color: var(--white); background: transparent; }
.btn-outline:hover { background: var(--white); color: var(--blue); }
.btn-block { width: 100%; }

/* ============ STATS ============ */
.stats { background: var(--red); color: var(--white); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 40px 24px; }
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-head); font-weight: 800; font-size: 40px; line-height: 1; }
.stat-label { display: block; margin-top: 8px; font-size: 13.5px; color: rgba(255,255,255,.9); }

/* ============ SECTIONS ============ */
.section { padding: 88px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-title {
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 14px;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: "";
  display: block;
  width: 64px; height: 4px;
  background: var(--red);
  border-radius: 2px;
  margin: 12px auto 0;
}
.section-sub { color: var(--gray); font-size: 16px; }

/* ============ ABOUT ============ */
.about { background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; }
.about-media { position: relative; }
.about-media img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.about-badge {
  position: absolute;
  bottom: -18px;
  left: 24px;
  background: var(--blue);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  padding: 12px 20px;
  border-radius: 10px;
  box-shadow: var(--shadow);
}
.about-content .section-title { display: block; text-align: left; }
.about-content .section-title::after { margin: 12px 0 0; }
.about-content p { color: var(--gray); margin-bottom: 16px; }
.about-points li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  font-size: 15px;
  color: var(--dark);
}
.about-points li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(189, 45, 59, 0.12);
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}

/* ============ PRODUCTS / CARDS ============ */
.products { background: var(--light); }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 26px; }
.card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-media { aspect-ratio: 4 / 3; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.card:hover .card-media img { transform: scale(1.06); }
.card-body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body h3 { font-size: 18.5px; color: var(--dark); }
.card-body p { font-size: 14.5px; color: var(--gray); }

.card-wide { flex-direction: row; }
.card-wide .card-media { aspect-ratio: auto; width: 42%; }
.card-wide .card-body { justify-content: center; }
.mini-list { margin-top: 6px; }
.mini-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  color: var(--gray);
  margin-bottom: 6px;
}
.mini-list li::before { content: "▸"; position: absolute; left: 0; color: var(--red); font-weight: 700; }

/* ============ PROJECTS ============ */
.projects { background: var(--white); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 26px;
}
.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.project-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.project-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.project-card:hover .project-media img { transform: scale(1.06); }
.project-cap {
  position: absolute;
  top: 14px; left: 14px;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.project-body { padding: 18px 20px 20px; position: relative; }
.project-body h3 { font-size: 16.5px; margin-bottom: 6px; }
.project-loc { display: flex; align-items: center; gap: 6px; font-size: 13.5px; color: var(--gray); margin-bottom: 4px; }
.project-loc [data-icon] { color: var(--blue); }
.project-eq { font-size: 12.5px; color: var(--gray); }
.project-year {
  position: absolute;
  right: 18px; top: 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  color: rgba(25, 64, 136, 0.25);
}

/* ============ EQUIPMENT ============ */
.equipment { background: var(--white); }
.tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.tag {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13.5px;
  color: var(--blue);
  background: rgba(25, 64, 136, 0.07);
  border: 1px solid rgba(25, 64, 136, 0.2);
  border-radius: 999px;
  padding: 9px 18px;
  transition: all .2s;
}
.tag:hover { background: var(--blue); color: var(--white); }

/* ============ SERVICES ============ */
.services { background: var(--light); }
.services .cards-grid { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.banner {
  margin-top: 40px;
  background: linear-gradient(110deg, var(--red) 0%, var(--red-dark) 100%);
  border-radius: var(--radius);
  color: var(--white);
  padding: 42px 48px;
  box-shadow: var(--shadow-lg);
}
.banner h3 { font-size: 22px; margin-bottom: 10px; }
.banner p { font-size: 15px; color: rgba(255,255,255,.92); max-width: 860px; }

/* ============ VALUES ============ */
.values { background: var(--beige); }
.value-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}
.value-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.value-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px; height: 54px;
  border-radius: 14px;
  background: rgba(25, 64, 136, 0.1);
  margin-bottom: 18px;
  color: var(--blue);
}
.value-card h3 { font-size: 18px; margin-bottom: 10px; }
.value-card p { font-size: 14.5px; color: var(--gray); }

/* ============ MACHINES ============ */
.machines { background: var(--light); }
.machines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 26px;
}
.machines-extra {
  margin-top: 32px;
  text-align: center;
  font-size: 14.5px;
  color: var(--gray);
}

/* ============ PARTNERS ============ */
.partners { background: var(--light); }.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 18px;
}
.partner-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}
.partner-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.partner-item img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }

/* ============ CONTACT ============ */
.contact { background: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
.contact-info h3 { font-size: 20px; margin-bottom: 22px; color: var(--dark); }
.contact-list li { display: flex; gap: 16px; margin-bottom: 20px; }
.contact-list li > span:first-child {
  flex: none;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(189, 45, 59, 0.08);
  color: var(--red);
  display: flex; align-items: center; justify-content: center;
}
.contact-list strong { display: block; font-family: var(--font-head); font-size: 14px; margin-bottom: 2px; }
.contact-list span { color: var(--gray); font-size: 14.5px; }
.contact-link { display: inline !important; padding: 0 !important; color: var(--blue) !important; font-weight: 600; }
.contact-link:hover { text-decoration: underline; }

.contact-form { background: var(--light); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow); }
.form-row { position: relative; margin-bottom: 18px; }
.form-row input, .form-row textarea {
  width: 100%;
  border: 1.5px solid var(--border);
  background: var(--white);
  border-radius: 10px;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--dark);
  outline: none;
  transition: border-color .2s;
  resize: vertical;
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--red); }
.form-row label {
  position: absolute;
  left: 16px; top: 15px;
  font-size: 14.5px;
  color: var(--gray);
  pointer-events: none;
  transition: all .18s;
  background: transparent;
  padding: 0 4px;
}
.form-row input:focus + label,
.form-row input:not(:placeholder-shown) + label,
.form-row textarea:focus + label,
.form-row textarea:not(:placeholder-shown) + label {
  top: -9px;
  font-size: 12px;
  color: var(--red);
  font-weight: 600;
  background: var(--light);
  border-radius: 4px;
}
.form-note { margin-top: 12px; font-size: 14px; color: var(--blue); text-align: center; min-height: 20px; }

/* Tùy chọn cách gửi email */
.send-options { margin-top: 16px; text-align: center; }
.send-options-title { font-size: 13.5px; color: var(--gray); margin-bottom: 10px; }
.send-options-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.btn-ghost {
  background: var(--white);
  border: 1.5px solid var(--blue);
  color: var(--blue);
  font-size: 13px;
  padding: 10px 16px;
}
.btn-ghost:hover { background: var(--blue); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow); }

.map { margin-top: 52px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.map iframe { width: 100%; height: 380px; border: 0; display: block; filter: saturate(0.9); }

/* ============ FOOTER ============ */
.footer { background: var(--dark); color: #C6CBD8; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 48px; padding: 64px 24px 44px; }
.footer-logo { height: 40px; width: auto; margin-bottom: 18px; }
.footer-col p { font-size: 14.5px; max-width: 380px; }
.footer-slogan {
  margin-top: 12px;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--beige);
  letter-spacing: 0.5px;
}
.btn-call { margin-top: 20px; background: var(--white); color: var(--red); border-color: var(--white); }
.btn-call:hover { background: var(--beige); border-color: var(--beige); color: var(--red); box-shadow: none; transform: none; }
.footer-col h4 { color: var(--white); font-size: 15.5px; margin-bottom: 18px; text-transform: uppercase; letter-spacing: 1px; }
.footer-col a, .footer-col > span {
  display: block;
  color: #C6CBD8;
  font-size: 14.5px;
  padding: 5px 0;
  transition: color .2s;
}
.footer-col a:hover { color: var(--beige); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 18px 0; font-size: 13.5px; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ============ FLOATING BUTTONS ============ */
.float-btns { position: fixed; right: 22px; bottom: 22px; z-index: 90; display: flex; flex-direction: column; gap: 12px; }
.float-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  box-shadow: var(--shadow-lg);
  transition: transform .2s;
}
.float-btn:hover { transform: scale(1.1); }
.float-zalo { background: #0068FF; }
.float-phone { background: var(--red); animation: pulse 2.2s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(189, 45, 59, 0.45); }
  70% { box-shadow: 0 0 0 16px rgba(189, 45, 59, 0); }
  100% { box-shadow: 0 0 0 0 rgba(189, 45, 59, 0); }
}

/* ============ REVEAL ANIMATION ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ============ ICONS (inline SVG) ============ */
[data-icon] { display: inline-flex; }
[data-icon]::before { content: ""; width: 1em; height: 1em; background: currentColor; -webkit-mask: var(--icon) center / contain no-repeat; mask: var(--icon) center / contain no-repeat; }

/* Icon Zalo lớn hơn cho dễ nhìn */
.topbar [data-icon="zalo"]::before { width: 18px; height: 18px; }
.float-btn [data-icon="zalo"]::before { width: 30px; height: 30px; }
[data-icon="phone"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><path d="M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72c.127.96.361 1.903.7 2.81a2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45c.907.339 1.85.573 2.81.7A2 2 0 0 1 22 16.92z"/></svg>'); }
[data-icon="mail"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><rect x="2" y="4" width="20" height="16" rx="2"/><path d="m22 7-8.97 5.7a1.94 1.94 0 0 1-2.06 0L2 7"/></svg>'); }
[data-icon="gmail"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="black"><path d="M4 4h16a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2Zm16 4.24-8 5-8-5V18h16V8.24ZM6.29 6h11.42L12 10.42 6.29 6Z"/></svg>'); }
[data-icon="pin"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><path d="M20 10c0 6-8 12-8 12s-8-6-8-12a8 8 0 0 1 16 0Z"/><circle cx="12" cy="10" r="3"/></svg>'); }
[data-icon="person"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><path d="M19 21v-2a4 4 0 0 0-4-4H9a4 4 0 0 0-4 4v2"/><circle cx="12" cy="7" r="4"/></svg>'); }
[data-icon="globe"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><circle cx="12" cy="12" r="10"/><path d="M2 12h20M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z"/></svg>'); }
[data-icon="factory"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><path d="M2 20h20M3 20V9l7 4V9l7 4V5h1a1 1 0 0 1 1 1v14"/></svg>'); }
[data-icon="building"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><rect x="4" y="2" width="16" height="20" rx="1"/><path d="M9 22v-4h6v4M8 6h.01M16 6h.01M12 6h.01M8 10h.01M16 10h.01M12 10h.01M8 14h.01M16 14h.01M12 14h.01"/></svg>'); }
[data-icon="clock"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><circle cx="12" cy="12" r="10"/><path d="M12 6v6l4 2"/></svg>'); }
[data-icon="facebook"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="black"><path d="M22 12a10 10 0 1 0-11.56 9.88v-6.99H7.9V12h2.54V9.8c0-2.5 1.49-3.89 3.77-3.89 1.09 0 2.24.2 2.24.2v2.46h-1.26c-1.24 0-1.63.77-1.63 1.56V12h2.78l-.44 2.89h-2.34v6.99A10 10 0 0 0 22 12Z"/></svg>'); }
[data-icon="zalo"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M12.49 10.2722v-.4496h1.3467v6.3218h-.7704a.576.576 0 01-.5763-.5729l-.0006.0005a3.273 3.273 0 01-1.9372.6321c-1.8138 0-3.2844-1.4697-3.2844-3.2823 0-1.8125 1.4706-3.2822 3.2844-3.2822a3.273 3.273 0 011.9372.6321l.0006.0005zM6.9188 7.7896v.205c0 .3823-.051.6944-.2995 1.0605l-.03.0343c-.0542.0615-.1815.206-.2421.2843L2.024 14.8h4.8948v.7682a.5764.5764 0 01-.5767.5761H0v-.3622c0-.4436.1102-.6414.2495-.8476L4.8582 9.23H.1922V7.7896h6.7266zm8.5513 8.3548a.4805.4805 0 01-.4803-.4798v-7.875h1.4416v8.3548H15.47zM20.6934 9.6C22.52 9.6 24 11.0807 24 12.9044c0 1.8252-1.4801 3.306-3.3066 3.306-1.8264 0-3.3066-1.4808-3.3066-3.306 0-1.8237 1.4802-3.3044 3.3066-3.3044zm-10.1412 5.253c1.0675 0 1.9324-.8645 1.9324-1.9312 0-1.065-.865-1.9295-1.9324-1.9295s-1.9324.8644-1.9324 1.9295c0 1.0667.865 1.9312 1.9324 1.9312zm10.1412-.0033c1.0737 0 1.945-.8707 1.945-1.9453 0-1.073-.8713-1.9436-1.945-1.9436-1.0753 0-1.945.8706-1.945 1.9436 0 1.0746.8697 1.9453 1.945 1.9453z"/></svg>'); }
[data-icon="mission"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><circle cx="12" cy="12" r="10"/><circle cx="12" cy="12" r="6"/><circle cx="12" cy="12" r="2"/></svg>'); }
[data-icon="vision"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><path d="M2 12s3.5-7 10-7 10 7 10 7-3.5 7-10 7-10-7-10-7Z"/><circle cx="12" cy="12" r="3"/></svg>'); }
[data-icon="innovation"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><path d="M9 18h6M10 22h4M12 2a7 7 0 0 0-4 12.7c.6.5 1 1.4 1 2.3h6c0-.9.4-1.8 1-2.3A7 7 0 0 0 12 2Z"/></svg>'); }
[data-icon="people"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/><circle cx="9" cy="7" r="4"/><path d="M23 21v-2a4 4 0 0 0-3-3.87M16 3.13a4 4 0 0 1 0 7.75"/></svg>'); }
[data-icon="commit"] { --icon: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2"><path d="M20 6 9 17l-5-5"/></svg>'); }

/* ============ RESPONSIVE ============ */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 36px; padding: 64px 24px; }
  .hero-card { max-width: 480px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .about-media { max-width: 560px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .card-wide { flex-direction: column; }
  .card-wide .card-media { width: 100%; aspect-ratio: 4 / 3; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--white);
    padding: 16px 24px 26px;
    gap: 4px;
    box-shadow: 0 20px 40px rgba(38,45,64,.12);
    transform: translateY(-120%);
    transition: transform .3s ease;
    border-bottom: 1px solid var(--border);
  }
  .nav.open { transform: translateY(0); }
  .nav-link { padding: 13px 14px; font-size: 15.5px; }
  .lang-btn { margin: 12px 0 0; }
  .topbar-social { display: none; }
  .topbar-contact { justify-content: space-between; width: 100%; }
  .hero { min-height: 560px; }
  .hero-inner { padding: 56px 24px 72px; }
  .hero-card { padding: 24px 22px; }
  .section { padding: 64px 0; }
  .banner { padding: 30px 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}