/* ============================================================
   SeraFix — Global styles
   Palette derived from the SeraFix brand:
   - Navy (deep brand bg)      #0E2A56
   - Navy 2 (sections)         #12356B
   - Sky (accent / "Fix")      #2E9BE0
   - Sky soft (tints)          #E8F2FB
   - Ink (body text on light)  #1B2A41
   - Cloud (light bg)          #F5F8FC
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
  --navy: #0E2A56;
  --navy-2: #12356B;
  --sky: #2E9BE0;
  --sky-dark: #1E7DBE;
  --sky-soft: #E8F2FB;
  --ink: #1B2A41;
  --muted: #5C6B82;
  --cloud: #F5F8FC;
  --white: #ffffff;
  --line: #E2EAF3;

  --font-display: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --maxw: 1180px;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 50px -20px rgba(14, 42, 86, 0.28);
  --shadow-sm: 0 8px 24px -12px rgba(14, 42, 86, 0.25);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy);
  line-height: 1.12;
  margin: 0 0 .5em;
  letter-spacing: -0.02em;
}

p { margin: 0 0 1rem; }
a { color: var(--sky-dark); text-decoration: none; }

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

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sky-dark);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--sky);
  display: inline-block;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .98rem;
  padding: .85rem 1.6rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn-primary { background: var(--sky); color: #fff; box-shadow: 0 10px 24px -10px rgba(46,155,224,.7); }
.btn-primary:hover { background: var(--sky-dark); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color:#fff; }
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: var(--navy-2); transform: translateY(-2px); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s ease, border-color .25s ease;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); border-color: var(--line); }
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand { display: flex; align-items: center; }
.brand-logo { height: 46px; width: auto; display: block; }

.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a { color: var(--ink); font-weight: 500; font-size: .96rem; position: relative; }
.nav-links a:not(.nav-cta):hover { color: var(--sky-dark); }
.nav-links a.is-active { color: var(--navy); font-weight: 600; }
.nav-links a.is-active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px; background: var(--sky); border-radius: 2px;
}
.nav-cta { background: var(--navy); color: #fff !important; padding: .6rem 1.2rem; border-radius: 999px; font-family: var(--font-display); font-weight: 600; }
.nav-cta:hover { background: var(--sky); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: .25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Sections ---------- */
.section { padding: 92px 0; }
.section-tight { padding: 64px 0; }
.bg-cloud { background: var(--cloud); }
.bg-navy { background: var(--navy); color: #fff; }
.bg-navy h1, .bg-navy h2, .bg-navy h3, .bg-navy h4 { color: #fff; }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 800; }
.section-head p { color: var(--muted); font-size: 1.08rem; }
.bg-navy .section-head p { color: rgba(255,255,255,.75); }

/* ---------- Reveal animation ---------- */
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal].revealed { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .08s; }
[data-reveal][data-delay="2"] { transition-delay: .16s; }
[data-reveal][data-delay="3"] { transition-delay: .24s; }
[data-reveal][data-delay="4"] { transition-delay: .32s; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: rgba(255,255,255,.72); padding-top: 64px; }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px 48px;
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px;
}
.footer-logo { height: 52px; width: auto; margin-bottom: 18px; }
.footer-brand .brand-name { color: #fff; font-size: 1.5rem; }
.footer-tag { font-size: .6rem; letter-spacing: .22em; text-transform: uppercase; color: var(--sky); margin: 4px 0 14px; }
.footer-blurb { font-size: .92rem; line-height: 1.6; max-width: 280px; }
.footer-col h4 { color: #fff; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col a { display: block; color: rgba(255,255,255,.72); font-size: .94rem; padding: 5px 0; }
.footer-col a:hover { color: var(--sky); }
.footer-addr { display: block; font-size: .94rem; padding: 5px 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  max-width: var(--maxw); margin: 0 auto; padding: 22px 24px;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  font-size: .85rem;
}
.footer-slogan strong { color: var(--sky); }

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25D366; color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 30px -8px rgba(37,211,102,.7);
  transition: transform .2s ease;
}
.wa-float svg { width: 28px; height: 28px; }
.wa-float:hover { transform: scale(1.08); }

/* ---------- Generic cards grid ---------- */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #cfe0f3; }
.card h3 { font-size: 1.22rem; }
.card p { color: var(--muted); margin-bottom: 0; font-size: .96rem; }

.card-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--sky-soft); color: var(--sky-dark);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.card-icon svg { width: 26px; height: 26px; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 60%, #164488 100%);
  color: #fff; padding: 120px 0 90px; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(46,155,224,.35), transparent 70%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800; max-width: 760px; }
.page-hero p { color: rgba(255,255,255,.8); font-size: 1.12rem; max-width: 600px; }
.crumb { font-size: .85rem; color: rgba(255,255,255,.6); margin-bottom: 18px; }
.crumb a { color: rgba(255,255,255,.85); }

/* ---------- Utility ---------- */
.lead { font-size: 1.15rem; color: var(--muted); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 800px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; padding: 12px 24px 22px;
    box-shadow: var(--shadow); border-top: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease;
  }
  .nav-links:not(.open) { padding-top: 0; padding-bottom: 0; }
  .nav-links.open { max-height: 420px; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links a.is-active::after { display: none; }
  .nav-cta { text-align: center; margin-top: 10px; border: 0; }
  .section { padding: 64px 0; }
}
@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1; transform: none; }
}