/* ARC Metal Processors — Main Stylesheet */
:root {
  --navy: #1B3A6B;
  --navy-dark: #0F1C2E;
  --blue: #2563EB;
  --blue-light: #3B82F6;
  --silver: #94A3B8;
  --silver-light: #CBD5E1;
  --white: #FFFFFF;
  --off-white: #F5F7FA;
  --gray: #64748B;
  --gray-light: #E2E8F0;
  --text: #1E293B;
  --red: #DC2626;
  --gold: #F59E0B;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--white);
  font-size: 16px;
  line-height: 1.6;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.125rem; }
p { line-height: 1.75; color: var(--gray); }

a { text-decoration: none; color: inherit; }

img { max-width: 100%; height: auto; display: block; }

/* ── UTILITIES ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.section-title { text-align: center; margin-bottom: 3rem; }
.section-title h2 { color: var(--navy); margin-bottom: 1rem; }
.section-title p { max-width: 640px; margin: 0 auto; font-size: 1.05rem; }
.section-title .tag {
  display: inline-block;
  background: rgba(37,99,235,.1);
  color: var(--blue);
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: .3rem .9rem;
  border-radius: 2rem;
  margin-bottom: .75rem;
}
.divider {
  width: 60px; height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--navy));
  border-radius: 2px;
  margin: 1rem auto 0;
}
.text-center { text-align: center; }
.text-white { color: var(--white) !important; }
.bg-navy { background: var(--navy); }
.bg-dark { background: var(--navy-dark); }
.bg-light { background: var(--off-white); }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.5rem; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 2rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .25s;
}
.btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn-primary:hover { background: var(--navy); border-color: var(--navy); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(37,99,235,.35); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--navy); }
.btn-outline-navy {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline-navy:hover { background: var(--navy); color: var(--white); }

/* ── NAVBAR ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: transparent;
  transition: background .35s, box-shadow .35s;
  padding: 1rem 0;
}
.navbar.scrolled {
  background: var(--navy-dark);
  box-shadow: 0 2px 20px rgba(0,0,0,.4);
  padding: .65rem 0;
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1200px; margin: 0 auto; padding: 0 1.5rem;
}
.nav-logo img { height: 54px; width: auto; }
.nav-links {
  display: flex; align-items: center; gap: 2rem;
  list-style: none;
}
.nav-links a {
  color: rgba(255,255,255,.88);
  font-size: .92rem;
  font-weight: 500;
  letter-spacing: .02em;
  padding: .3rem 0;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--white); border-color: var(--blue-light); }
.nav-cta { display: flex; align-items: center; gap: 1rem; }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: .4rem;
  background: none; border: none;
}
.hamburger span {
  display: block; width: 26px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu — hidden on ALL screen sizes by default */
.mobile-menu {
  display: none;
}

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
  background: var(--navy-dark);
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('../images/image2.png');
  background-size: cover; background-position: center;
  opacity: .25;
}
.hero-gradient {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(15,28,46,.95) 0%, rgba(27,58,107,.7) 60%, rgba(15,28,46,.85) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 1200px; margin: 0 auto; padding: 0 1.5rem;
  padding-top: 5rem;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  background: rgba(37,99,235,.2);
  border: 1px solid rgba(59,130,246,.4);
  color: var(--blue-light);
  font-size: .82rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  padding: .4rem 1rem; border-radius: 2rem;
  margin-bottom: 1.5rem;
}
.hero-badge::before { content: ''; width: 7px; height: 7px; background: var(--blue-light); border-radius: 50%; }
.hero h1 { color: var(--white); margin-bottom: 1.5rem; max-width: 750px; }
.hero h1 span { color: var(--blue-light); }
.hero p { color: rgba(255,255,255,.75); font-size: 1.15rem; max-width: 580px; margin-bottom: 2.5rem; }
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 3rem; margin-top: 4rem;
  padding-top: 3rem; border-top: 1px solid rgba(255,255,255,.12);
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-item .num {
  font-size: 2.5rem; font-weight: 800; color: var(--white);
  display: block; line-height: 1;
}
.stat-item .num span { color: var(--blue-light); }
.stat-item .label { font-size: .8rem; color: rgba(255,255,255,.6); text-transform: uppercase; letter-spacing: .08em; margin-top: .4rem; }

/* ── PAGE HERO ── */
.page-hero {
  padding: 9rem 0 4rem;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  position: relative; overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute; inset: 0;
  background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.03"><rect x="0" y="0" width="2" height="2"/></g></g></svg>');
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: var(--white); margin-bottom: .75rem; }
.page-hero p { color: rgba(255,255,255,.7); font-size: 1.1rem; max-width: 560px; }
.breadcrumb { display: flex; gap: .5rem; align-items: center; color: rgba(255,255,255,.5); font-size: .85rem; margin-bottom: 1rem; }
.breadcrumb a { color: rgba(255,255,255,.6); }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb span { color: var(--blue-light); }

/* ── CARDS ── */
.card {
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 2px 16px rgba(0,0,0,.07);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.12); }
.card-img { width: 100%; height: 220px; object-fit: cover; }
.card-body { padding: 1.5rem; }
.card-tag {
  font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  color: var(--blue); margin-bottom: .5rem; display: block;
}
.card-body h3 { color: var(--navy); margin-bottom: .6rem; font-size: 1.15rem; }
.card-body p { font-size: .9rem; }

/* ── ICON CARD ── */
.icon-card {
  background: var(--white);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 2px 16px rgba(0,0,0,.06);
  border: 1px solid var(--gray-light);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.icon-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.1); border-color: var(--blue); }
.icon-wrap {
  width: 56px; height: 56px; border-radius: 12px;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
}
.icon-card h4 { color: var(--navy); margin-bottom: .5rem; }

/* ── TEAM CARD ── */
.team-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,.08);
  text-align: center;
  transition: transform .25s, box-shadow .25s;
}
.team-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,.14); }
.team-photo {
  width: 100%; height: 280px;
  object-fit: cover; object-position: top;
}
.team-info { padding: 1.75rem; }
.team-info h3 { color: var(--navy); margin-bottom: .35rem; }
.team-role {
  display: inline-block;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: var(--white);
  font-size: .78rem; font-weight: 600; letter-spacing: .05em;
  padding: .3rem .9rem; border-radius: 2rem;
  margin-bottom: 1rem;
}
.team-detail { display: flex; align-items: flex-start; gap: .5rem; margin-bottom: .5rem; text-align: left; }
.team-detail svg { flex-shrink: 0; margin-top: 3px; }
.team-detail a { color: var(--blue); font-size: .88rem; }
.team-detail a:hover { text-decoration: underline; }
.team-detail span { font-size: .88rem; color: var(--gray); }
.qual-badge {
  font-size: .8rem; background: var(--off-white);
  border-radius: 6px; padding: .5rem .75rem;
  color: var(--navy); font-weight: 500; margin-top: 1rem;
  line-height: 1.5; text-align: left;
}

/* ── CUSTOMER LOGOS ── */
.logo-strip {
  padding: 3rem 0;
  background: var(--off-white);
  overflow: hidden;
}
.logo-strip-inner { display: flex; align-items: center; gap: 3rem; flex-wrap: wrap; justify-content: center; }
.logo-item {
  display: flex; align-items: center; justify-content: center;
  padding: .75rem 1.25rem;
  background: var(--white);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
  height: 64px; min-width: 120px;
  transition: transform .2s, box-shadow .2s;
}
.logo-item:hover { transform: scale(1.05); box-shadow: 0 6px 20px rgba(0,0,0,.1); }
.logo-item img { max-height: 44px; max-width: 120px; object-fit: contain; filter: grayscale(40%); transition: filter .2s; }
.logo-item:hover img { filter: grayscale(0); }

/* ── STATS BAR ── */
.stats-bar {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  padding: 3.5rem 0;
}
.stats-bar .container { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 2rem; }
.stat-box { text-align: center; }
.stat-box .num { font-size: 2.8rem; font-weight: 800; color: var(--white); line-height: 1; display: block; }
.stat-box .num span { color: var(--blue-light); }
.stat-box .lbl { color: rgba(255,255,255,.65); font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; margin-top: .5rem; }

/* ── VERTICAL LIST ── */
.v-list { list-style: none; }
.v-list li {
  display: flex; align-items: flex-start; gap: .75rem;
  padding: .6rem 0;
  border-bottom: 1px solid var(--gray-light);
  font-size: .95rem; color: var(--gray);
}
.v-list li:last-child { border-bottom: none; }
.v-list li::before { content: '✦'; color: var(--blue); font-size: .6rem; margin-top: .45rem; flex-shrink: 0; }

/* ── PRODUCT GRID ── */
.product-card {
  background: var(--white);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 3px 18px rgba(0,0,0,.07);
  border: 1px solid var(--gray-light);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.product-card:hover { transform: translateY(-5px); box-shadow: 0 14px 36px rgba(0,0,0,.12); border-color: var(--blue); }
.product-img-wrap {
  height: 220px; background: #f0f4f8;
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem; overflow: hidden;
}
.product-img-wrap img { max-height: 180px; object-fit: contain; transition: transform .3s; }
.product-card:hover .product-img-wrap img { transform: scale(1.06); }
.product-info { padding: 1.5rem; }
.product-info h4 { color: var(--navy); margin-bottom: .5rem; font-size: 1.05rem; }
.product-info p { font-size: .88rem; }

/* ── MACHINE TABLE ── */
.machine-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.machine-table th {
  background: var(--navy); color: var(--white);
  padding: .75rem 1rem; text-align: left; font-weight: 600;
}
.machine-table td { padding: .65rem 1rem; border-bottom: 1px solid var(--gray-light); color: var(--gray); }
.machine-table tr:last-child td { border-bottom: none; }
.machine-table tr:nth-child(even) td { background: var(--off-white); }
.machine-table tr:hover td { background: rgba(37,99,235,.04); }

/* ── ACHIEVEMENT ── */
.award-card {
  background: var(--white);
  border-radius: 14px;
  padding: 2.5rem;
  box-shadow: 0 4px 24px rgba(0,0,0,.07);
  border-left: 5px solid var(--gold);
  display: flex; gap: 2rem; align-items: flex-start;
  transition: transform .25s, box-shadow .25s;
}
.award-card:hover { transform: translateY(-4px); box-shadow: 0 14px 40px rgba(0,0,0,.12); }
.award-icon { font-size: 2.5rem; flex-shrink: 0; }
.award-card h4 { color: var(--navy); margin-bottom: .4rem; font-size: 1.15rem; }
.award-year { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--gold); margin-bottom: .5rem; display: block; }

/* ── CONTACT ── */
.contact-form {
  background: var(--white);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 6px 32px rgba(0,0,0,.09);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: .85rem; font-weight: 600; color: var(--navy); }
.form-group input,
.form-group select,
.form-group textarea {
  border: 1.5px solid var(--gray-light);
  border-radius: 8px;
  padding: .75rem 1rem;
  font-size: .95rem;
  font-family: inherit;
  color: var(--text);
  transition: border-color .2s, box-shadow .2s;
  outline: none;
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.contact-info-card {
  background: linear-gradient(160deg, var(--navy-dark), var(--navy));
  border-radius: 16px;
  padding: 2.5rem;
  color: var(--white);
  height: 100%;
}
.contact-info-card h3 { color: var(--white); margin-bottom: .5rem; }
.contact-info-card p { color: rgba(255,255,255,.7); margin-bottom: 2rem; }
.contact-item { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.75rem; }
.contact-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: rgba(255,255,255,.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.contact-item-text h5 { color: var(--white); font-size: .85rem; text-transform: uppercase; letter-spacing: .07em; margin-bottom: .2rem; }
.contact-item-text p, .contact-item-text a { color: rgba(255,255,255,.75); font-size: .9rem; }
.contact-item-text a:hover { color: var(--blue-light); }
.person-contact {
  background: var(--white);
  border-radius: 14px;
  padding: 1.75rem;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  text-align: center;
  transition: transform .25s;
}
.person-contact:hover { transform: translateY(-4px); }
.person-contact img {
  width: 90px; height: 90px; border-radius: 50%;
  object-fit: cover; object-position: top;
  margin: 0 auto 1rem;
  border: 3px solid var(--blue);
}
.person-contact h4 { color: var(--navy); margin-bottom: .25rem; font-size: 1rem; }
.person-contact .role { font-size: .82rem; color: var(--blue); font-weight: 600; margin-bottom: .75rem; display: block; }
.person-contact a { display: block; font-size: .85rem; color: var(--gray); margin-bottom: .35rem; }
.person-contact a:hover { color: var(--blue); }

/* ── FOOTER ── */
footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,.75);
  padding: 4rem 0 0;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-brand img { height: 52px; margin-bottom: 1.25rem; }
.footer-brand p { font-size: .88rem; line-height: 1.7; color: rgba(255,255,255,.6); max-width: 280px; }
.footer-col h5 { color: var(--white); font-size: .9rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 1.25rem; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: .6rem; }
.footer-links a { font-size: .88rem; color: rgba(255,255,255,.6); transition: color .2s; }
.footer-links a:hover { color: var(--blue-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 1.5rem 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: .82rem; color: rgba(255,255,255,.4);
  flex-wrap: wrap; gap: .5rem;
}

/* ── ABOUT PAGE SPECIFICS ── */
.vertical-card {
  background: var(--white); border-radius: 12px;
  padding: 2rem; box-shadow: 0 3px 16px rgba(0,0,0,.07);
  border-top: 4px solid var(--blue);
}
.vertical-card h4 { color: var(--navy); margin-bottom: .35rem; }
.vertical-card .year { font-size: .8rem; color: var(--blue); font-weight: 700; margin-bottom: .75rem; display: block; }
.plant-card {
  background: var(--white); border-radius: 12px;
  padding: 1.75rem; box-shadow: 0 3px 14px rgba(0,0,0,.06);
  border-left: 4px solid var(--navy);
}
.plant-label { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--blue); margin-bottom: .4rem; display: block; }
.plant-card h4 { color: var(--navy); margin-bottom: .6rem; font-size: 1rem; }
.plant-card address { font-style: normal; font-size: .88rem; color: var(--gray); line-height: 1.6; }

/* ── CAPABILITY SPECIFICS ── */
.equip-section { background: var(--off-white); border-radius: 14px; padding: 2.5rem; }
.equip-section h3 { color: var(--navy); margin-bottom: .5rem; display: flex; align-items: center; gap: .75rem; }
.equip-section h3 span { font-size: 1.5rem; }
.equip-section p { margin-bottom: 1.5rem; }
.machine-img-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; margin-top: 1.5rem; }
.machine-img-item {
  border-radius: 10px; overflow: hidden; background: var(--white);
  padding: 1rem; box-shadow: 0 2px 10px rgba(0,0,0,.06);
  text-align: center;
}
.machine-img-item img { height: 160px; object-fit: contain; margin: 0 auto; }
.machine-img-item p { font-size: .78rem; color: var(--navy); font-weight: 600; margin-top: .75rem; }

/* ── ACHIEVEMENTS PAGE ── */
.cert-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 2rem; }
.photo-award { border-radius: 14px; overflow: hidden; box-shadow: 0 6px 28px rgba(0,0,0,.12); }
.photo-award img { width: 100%; height: 280px; object-fit: cover; }
.photo-award-caption { background: var(--navy); color: var(--white); padding: 1rem 1.5rem; font-size: .9rem; }

/* ── FUTURE PLANS ── */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before { content: ''; position: absolute; left: .65rem; top: 0; bottom: 0; width: 2px; background: var(--gray-light); }
.timeline-item { position: relative; margin-bottom: 2rem; }
.timeline-item::before {
  content: ''; position: absolute; left: -1.35rem; top: .35rem;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--blue); border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--blue);
}
.timeline-year { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--blue); margin-bottom: .25rem; }
.timeline-item h4 { color: var(--navy); margin-bottom: .35rem; }
.timeline-item p { font-size: .9rem; }

/* ── FORM FIELD ERRORS ── */
.form-group input.field-error,
.form-group select.field-error,
.form-group textarea.field-error {
  border-color: #EF4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.12);
}
.field-error-msg {
  display: block;
  color: #DC2626;
  font-size: .8rem;
  font-weight: 500;
  margin-top: .3rem;
}
/* checkbox error sits beside the label */
input[type="checkbox"].field-error + label {
  color: #DC2626;
}
input[type="checkbox"].field-error ~ .field-error-msg {
  display: block;
  margin-top: .3rem;
}

/* ── FORM SUCCESS ── */
.form-success {
  display: none; background: #ECFDF5; border: 1px solid #6EE7B7;
  border-radius: 8px; padding: 1rem 1.25rem;
  color: #065F46; font-size: .9rem; margin-top: 1rem;
  align-items: center; gap: .5rem;
}
.form-success.show { display: flex; }
.form-send-error {
  display: none; background: #FEF2F2; border: 1px solid #FECACA;
  border-radius: 8px; padding: 1rem 1.25rem;
  color: #991B1B; font-size: .9rem; margin-top: 1rem;
  align-items: center; gap: .5rem;
}
.form-send-error.show { display: flex; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
  .section { padding: 3.5rem 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .machine-img-grid { grid-template-columns: repeat(2,1fr); }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .mobile-menu {
    display: flex;
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--navy-dark);
    z-index: 999;
    flex-direction: column; align-items: center; justify-content: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform .35s cubic-bezier(.4,0,.2,1);
  }
  .mobile-menu.open { transform: translateX(0); }
  .mobile-menu a {
    color: var(--white); font-size: 1.5rem; font-weight: 600;
  }
  .hero-stats { gap: 1.5rem; }
  .hero-stats .stat-item .num { font-size: 1.8rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .award-card { flex-direction: column; }
  .stats-bar .container { gap: 1.5rem; }
  .stat-box .num { font-size: 2rem; }
}

@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .machine-img-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .btn { justify-content: center; }
}