:root {
  --navy: #0a1f44;
  --navy-2: #082a5f;
  --orange: #ff6b00;
  --orange-2: #ff8a2a;
  --steel: #6c757d;
  --ink: #112033;
  --muted: #5d6777;
  --line: #dde4ee;
  --bg: #f8f9fa;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(10, 31, 68, .14);
  --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
body.dark {
  --bg: #071221;
  --white: #0d1a2d;
  --ink: #f4f7fb;
  --muted: #b7c3d4;
  --line: #223653;
  --shadow: 0 18px 45px rgba(0, 0, 0, .35);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
p { color: var(--muted); margin: 0 0 1rem; }
h1, h2, h3, h4 {
  font-family: "Poppins", Arial, sans-serif;
  color: var(--ink);
  line-height: 1.12;
  margin: 0 0 1rem;
}
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.skip-link {
  position: absolute; left: -999px; top: 12px; z-index: 9999;
  background: var(--orange); color: #111; padding: .7rem 1rem; border-radius: var(--radius);
}
.skip-link:focus { left: 12px; }
.site-header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
body.dark .site-header { background: rgba(7,18,33,.94); }
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .75rem; font-family: "Poppins", Arial, sans-serif; font-weight: 800; color: var(--navy); }
.brand-mark {
  width: 52px; height: 52px; border-radius: 50%;
  background: #fff url("../images/logo-wf.png") center / 120% auto no-repeat;
  box-shadow: 0 6px 16px rgba(10,31,68,.22);
  flex: 0 0 auto;
}
.brand span { display: block; color: var(--navy); }
body.dark .brand span { color: #fff; }
.brand small { display: block; font-size: .68rem; letter-spacing: .12em; color: var(--orange); text-transform: uppercase; }
.nav-menu { display: flex; align-items: center; gap: .25rem; list-style: none; padding: 0; margin: 0; }
.nav-menu a { display: inline-flex; padding: .75rem .7rem; color: var(--navy); font-weight: 700; font-size: .9rem; border-radius: var(--radius); }
body.dark .nav-menu a { color: #f4f7fb; }
.nav-menu a:hover, .nav-menu a.active { background: rgba(255,107,0,.12); color: var(--orange); }
.nav-actions { display: flex; align-items: center; gap: .5rem; }
.icon-btn, .menu-toggle {
  width: 42px; height: 42px; border: 1px solid var(--line); background: var(--white);
  border-radius: var(--radius); display: inline-grid; place-items: center; color: var(--navy); cursor: pointer;
}
body.dark .icon-btn, body.dark .menu-toggle { color: #fff; }
.menu-toggle { display: none; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  border: 0; border-radius: var(--radius); padding: .85rem 1.1rem;
  background: var(--orange); color: #fff; font-weight: 800; cursor: pointer;
  box-shadow: 0 10px 22px rgba(255,107,0,.24);
}
.btn:hover { background: #e75f00; transform: translateY(-1px); }
.btn.secondary { background: var(--navy); box-shadow: 0 10px 22px rgba(10,31,68,.2); }
.btn.ghost { background: transparent; color: var(--navy); border: 1px solid var(--line); box-shadow: none; }
body.dark .btn.ghost { color: #fff; }
.hero {
  position: relative; overflow: hidden; min-height: calc(100vh - 76px);
  display: grid; align-items: center; padding: 58px 0 44px;
  background:
    linear-gradient(115deg, rgba(6,18,43,.98) 0%, rgba(10,31,68,.92) 48%, rgba(255,107,0,.76) 100%),
    repeating-linear-gradient(135deg, rgba(255,255,255,.08) 0 1px, transparent 1px 18px);
}
.hero::after {
  content: ""; position: absolute; inset: auto 0 0;
  height: 94px; background: linear-gradient(to bottom, transparent, var(--bg));
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .98fr 1.02fr; gap: clamp(1.4rem, 4vw, 3rem); align-items: center; }
.eyebrow { color: var(--orange-2); font-weight: 900; text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; }
.hero h1 { color: #fff; font-size: clamp(2.4rem, 7vw, 5.5rem); letter-spacing: 0; max-width: 880px; }
.hero p { color: #d9e4f2; font-size: 1.15rem; max-width: 660px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.5rem 0 2rem; }
.trust-row { display: flex; flex-wrap: wrap; gap: .75rem; color: #fff; font-weight: 800; }
.trust-row span { border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius); padding: .55rem .7rem; background: rgba(255,255,255,.08); }
.weld-visual {
  min-height: 560px; border-radius: var(--radius); position: relative; overflow: hidden;
  background:
    radial-gradient(circle at 52% 42%, rgba(255,255,255,.95) 0 1%, rgba(53,184,255,.8) 1.1% 2.2%, transparent 2.4%),
    radial-gradient(circle at 50% 45%, rgba(255,107,0,.36) 0 19%, transparent 42%),
    linear-gradient(150deg, #102f65, #071529 58%, #ff6b00);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  padding: clamp(1.2rem, 4vw, 2.25rem);
}
.weld-visual::before {
  content: ""; position: absolute; inset: 7%;
  background:
    linear-gradient(18deg, transparent 47%, #0a1f44 48% 52%, transparent 53%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.16) 0 2px, transparent 2px 34px);
  border: 1px solid rgba(255,255,255,.24);
}
.weld-visual::after {
  content: ""; position: absolute; left: 44%; top: 35%; width: 46%; height: 46%;
  background: conic-gradient(from 220deg, transparent, #fff, #ff6b00, transparent, #39bfff, transparent);
  clip-path: polygon(0 50%, 100% 0, 100% 100%);
  filter: drop-shadow(0 0 16px #55c8ff);
}
.hero-logo {
  position: relative;
  z-index: 2;
  width: min(92%, 530px);
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  filter: drop-shadow(0 26px 34px rgba(0,0,0,.34));
}
.visual-badge {
  position: absolute; left: 24px; bottom: 24px; right: 24px;
  display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: center;
  padding: 1rem; border-radius: var(--radius); background: rgba(255,255,255,.92);
  z-index: 3;
}
.visual-badge strong { display: block; color: var(--navy); font-family: "Poppins"; font-size: 1.1rem; }
.visual-badge span { color: var(--steel); font-weight: 700; font-size: .9rem; }
.section { padding: 76px 0; }
.section.alt { background: var(--white); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 3rem); max-width: 760px; }
.section-head p { max-width: 600px; }
.grid { display: grid; gap: 1rem; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.four { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.3rem; box-shadow: 0 10px 24px rgba(10,31,68,.06);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.icon {
  width: 44px; height: 44px; display: grid; place-items: center; border-radius: var(--radius);
  background: rgba(255,107,0,.12); color: var(--orange); margin-bottom: 1rem; font-weight: 900;
}
.stat { text-align: center; padding: 1.25rem; }
.stat strong { display: block; font-family: "Poppins"; font-size: clamp(2rem, 5vw, 3.5rem); color: var(--orange); line-height: 1; }
.stat span { color: var(--navy); font-weight: 900; }
body.dark .stat span { color: #fff; }
.course-card { display: grid; min-height: 210px; align-content: space-between; background: linear-gradient(160deg, var(--white), rgba(255,107,0,.08)); }
.pill { display: inline-flex; width: max-content; border-radius: 999px; padding: .35rem .65rem; font-size: .78rem; font-weight: 900; background: rgba(10,31,68,.08); color: var(--navy); }
body.dark .pill { color: #fff; }
.timeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: .75rem; counter-reset: step; }
.timeline li { list-style: none; position: relative; padding: 1.2rem 1rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); font-weight: 900; }
.timeline li::before { counter-increment: step; content: counter(step); display: block; width: 32px; height: 32px; border-radius: 50%; background: var(--orange); color: #fff; text-align: center; line-height: 32px; margin-bottom: .7rem; }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 2rem; align-items: center; }
.media-panel {
  min-height: 430px; border-radius: var(--radius); background:
    linear-gradient(135deg, rgba(10,31,68,.9), rgba(10,31,68,.55)),
    repeating-linear-gradient(0deg, rgba(255,255,255,.13) 0 2px, transparent 2px 42px),
    linear-gradient(45deg, #102b5d, #ff6b00);
  box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.media-panel::after { content: ""; position: absolute; inset: 22% 12%; border: 10px solid rgba(255,255,255,.22); transform: skew(-12deg); }
.check-list { display: grid; gap: .7rem; padding: 0; margin: 1rem 0 0; }
.check-list li { list-style: none; display: flex; gap: .7rem; align-items: flex-start; color: var(--muted); }
.check-list li::before { content: "✓"; color: var(--orange); font-weight: 900; }
.testimonial-track { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.quote { min-height: 260px; display: grid; align-content: space-between; }
.stars { color: var(--orange); letter-spacing: .08em; }
.faq-item { border-bottom: 1px solid var(--line); background: var(--white); }
.faq-question { width: 100%; padding: 1.1rem; background: transparent; border: 0; display: flex; justify-content: space-between; gap: 1rem; color: var(--ink); font-weight: 900; text-align: left; cursor: pointer; }
.faq-answer { display: none; padding: 0 1.1rem 1.1rem; }
.faq-item.open .faq-answer { display: block; }
.cta-band {
  background: linear-gradient(110deg, var(--navy), #123a78 60%, var(--orange));
  color: #fff; padding: 3rem; border-radius: var(--radius); display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.cta-band h2, .cta-band p { color: #fff; }
.page-hero { padding: 72px 0; background: linear-gradient(115deg, var(--navy), #123a78); color: #fff; }
.page-hero h1 { color: #fff; font-size: clamp(2.2rem, 5vw, 4rem); }
.breadcrumbs { color: #c8d5e6; font-size: .92rem; margin-bottom: 1rem; }
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 1.5rem; }
.form { display: grid; gap: .9rem; }
.form label { font-weight: 900; color: var(--ink); }
.form input, .form select, .form textarea {
  width: 100%; padding: .9rem 1rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--white); color: var(--ink); font: inherit;
}
.form textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: .9rem; }
.map { border: 0; width: 100%; min-height: 420px; border-radius: var(--radius); filter: grayscale(.15); }
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.gallery-item { min-height: 210px; border-radius: var(--radius); background: linear-gradient(135deg, #0a1f44, #16447e 55%, #ff6b00); position: relative; overflow: hidden; }
.gallery-item::after { content: attr(data-label); position: absolute; left: 1rem; right: 1rem; bottom: 1rem; color: #fff; font-weight: 900; }
.blog-card time { color: var(--orange); font-weight: 900; font-size: .88rem; }
.site-footer { background: #06152b; color: #d9e4f2; padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); gap: 2rem; }
.site-footer h3, .site-footer h4 { color: #fff; }
.site-footer a, .site-footer p { color: #d9e4f2; }
.footer-links { display: grid; gap: .55rem; padding: 0; margin: 0; list-style: none; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid rgba(255,255,255,.12); padding-top: 1rem; margin-top: 2rem; font-size: .9rem; }
.float-actions { position: fixed; right: 18px; bottom: 18px; display: grid; gap: .6rem; z-index: 800; }
.float-actions a, #backToTop {
  width: 48px; height: 48px; border: 0; border-radius: 50%; display: grid; place-items: center;
  color: #fff; font-weight: 900; box-shadow: var(--shadow); cursor: pointer;
}
.whatsapp { background: #25d366; }
.call { background: var(--orange); }
#backToTop { background: var(--navy); display: none; }
.cookie {
  position: fixed; left: 16px; bottom: 16px; max-width: 410px; z-index: 850;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow);
}
.cookie.hide { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }