/* ===================== Design Tokens ===================== */
:root {
  --primary: #0F6B4C;
  --primary-dark: #0A4A34;
  --primary-darker: #083E2C;
  --primary-light: #1B8A63;
  --accent: #F5A623;
  --accent-dark: #D98A0E;
  --ink: #14231D;
  --ink-soft: #4C5E56;
  --bg: #FFFFFF;
  --bg-muted: #F5FAF7;
  --border: #E3ECE7;
  --white: #FFFFFF;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(10, 40, 28, 0.06);
  --shadow-md: 0 12px 32px rgba(10, 40, 28, 0.10);
  --shadow-lg: 0 24px 60px rgba(10, 40, 28, 0.16);
  --container: 1180px;
  --ff-heading: 'Poppins', 'Segoe UI', sans-serif;
  --ff-body: 'Inter', 'Segoe UI', sans-serif;
}

/* ===================== Reset ===================== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--ff-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { font-family: var(--ff-heading); margin: 0 0 .5em; color: var(--primary-darker); line-height: 1.25; }
p { margin: 0 0 1em; color: var(--ink-soft); }
button { font-family: inherit; cursor: pointer; }
svg { display: block; }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--primary); color: #fff;
  padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 2000;
}
.skip-link:focus { left: 0; }

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

/* ===================== Buttons ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--primary-dark); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--accent); color: var(--primary-darker); box-shadow: var(--shadow-sm); }
.btn-accent:hover { background: var(--accent-dark); box-shadow: var(--shadow-md); }
.btn-outline { border-color: rgba(255,255,255,0.55); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-sm { padding: 10px 20px; font-size: 0.88rem; }
.btn-block { width: 100%; }

/* ===================== Header ===================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s ease, border-color .25s ease, background .25s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,0.97);
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { display: inline-flex; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--ff-heading); font-size: 1.08rem; color: var(--primary-darker); font-weight: 700; }
.brand-text small { font-size: 0.68rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }
.brand-text.light strong { color: #fff; }
.brand-text.light small { color: rgba(255,255,255,0.65); }

.main-nav ul { display: flex; gap: 32px; }
.main-nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink);
  position: relative;
  padding: 6px 0;
  transition: color .2s ease;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width .2s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--primary); }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 16px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--primary-darker);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.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); }

/* ===================== Hero ===================== */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  padding: 90px 0 70px;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg svg { width: 100%; height: 100%; }
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.hero-copy h1 {
  color: #fff;
  font-size: clamp(2rem, 3.6vw, 3rem);
  font-weight: 700;
  margin-bottom: 20px;
}
.hero-desc { color: rgba(255,255,255,0.85); font-size: 1.05rem; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin: 28px 0 40px; }

.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.hero-stats dt { font-family: var(--ff-heading); font-size: 1.9rem; font-weight: 700; color: #fff; }
.hero-stats dd { margin: 2px 0 0; font-size: 0.85rem; color: rgba(255,255,255,0.7); }
.stats-note { font-size: 0.75rem; color: rgba(255,255,255,0.5); margin-top: 10px; }

.hero-visual { display: flex; justify-content: center; }
.hero-illustration { width: 100%; max-width: 420px; }

/* ===================== Trust strip ===================== */
.trust-strip { background: var(--bg-muted); border-bottom: 1px solid var(--border); }
.trust-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding: 18px 24px;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.trust-inner ul { display: flex; gap: 22px; flex-wrap: wrap; }
.trust-inner li {
  font-weight: 600;
  color: var(--primary-dark);
  font-size: 0.82rem;
  letter-spacing: .02em;
}

/* ===================== Section base ===================== */
.section { padding: 96px 0; }
.section-muted { background: var(--bg-muted); }
.section-head { max-width: 680px; margin: 0 auto 52px; text-align: center; }
.section-head h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
.section-sub { font-size: 1rem; }
.section-head.light .eyebrow { color: var(--accent); }
.section-head.light h2 { color: #fff; }

/* ===================== About ===================== */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
}
.about-visual svg { width: 100%; }
.about-collage {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.about-collage .collage-main {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.about-collage .collage-item {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.about-collage .collage-wide {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.about-collage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.vision-mission { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 28px; }
.vm-card {
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
}
.vm-card h3 { font-size: 1.05rem; color: var(--primary); margin-bottom: 8px; }
.vm-card p { font-size: 0.92rem; margin: 0; }

/* ===================== Service cards ===================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.icon-box {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--bg-muted);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.icon-box svg { width: 28px; height: 28px; }
.service-card h3 { font-size: 1.12rem; margin-bottom: 8px; }
.service-card p { font-size: 0.92rem; margin: 0; }

/* ===================== Why us ===================== */
.why-us {
  background: linear-gradient(160deg, var(--primary-darker), var(--primary-dark));
  color: #fff;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.why-item { border-top: 3px solid var(--accent); padding-top: 20px; }
.why-num { font-family: var(--ff-heading); font-size: 1.6rem; font-weight: 700; color: var(--accent); }
.why-item h3 { color: #fff; font-size: 1.05rem; margin: 10px 0 8px; }
.why-item p { color: rgba(255,255,255,0.72); font-size: 0.9rem; margin: 0; }

/* ===================== Process ===================== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  counter-reset: step;
}
.process-steps li {
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
}
.step-no {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-family: var(--ff-heading);
  font-weight: 700;
  margin-bottom: 16px;
}
.process-steps h3 { font-size: 1.02rem; margin-bottom: 6px; }
.process-steps p { font-size: 0.88rem; margin: 0; }

/* ===================== Portfolio ===================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}
.portfolio-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform .22s ease, box-shadow .22s ease;
}
.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.portfolio-thumb { height: 170px; overflow: hidden; }
.portfolio-thumb img,
.portfolio-thumb svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}
.portfolio-card:hover .portfolio-thumb img,
.portfolio-card:hover .portfolio-thumb svg { transform: scale(1.06); }
.thumb-1 { background: linear-gradient(135deg, #1B8A63, #0A4A34); }
.thumb-2 { background: linear-gradient(135deg, #F5A623, #D98A0E); }
.thumb-3 { background: linear-gradient(135deg, #0F6B4C, #14231D); }
.thumb-4 { background: linear-gradient(135deg, #2FA57A, #0A4A34); }
.portfolio-body { padding: 22px 24px 26px; }
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--bg-muted);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.portfolio-body h3 { font-size: 1.05rem; margin-bottom: 8px; }
.portfolio-body p { font-size: 0.9rem; margin: 0; }

/* ===================== CTA banner ===================== */
.cta-banner {
  background: var(--accent);
  margin: 0;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 56px 24px;
}
.cta-inner h2 { color: var(--primary-darker); margin-bottom: 8px; font-size: 1.6rem; }
.cta-inner p { color: rgba(10,40,28,0.75); margin: 0; }
.cta-inner .btn-accent { background: var(--primary-darker); color: #fff; }
.cta-inner .btn-accent:hover { background: var(--primary-dark); }

/* ===================== Contact ===================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: flex-start;
}
.contact-list { margin-top: 28px; display: flex; flex-direction: column; gap: 20px; }
.contact-list li { display: flex; gap: 16px; align-items: flex-start; }
.contact-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  border-radius: 12px;
  background: var(--bg-muted);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
}
.contact-icon svg { width: 22px; height: 22px; }
.contact-list strong { display: block; font-size: 0.92rem; color: var(--primary-darker); }
.contact-list span { font-size: 0.9rem; color: var(--ink-soft); }
.contact-list span a { color: var(--primary); font-weight: 600; text-decoration: none; }
.contact-list span a:hover { text-decoration: underline; }

.contact-form {
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-size: 0.85rem; font-weight: 600; color: var(--primary-darker); }
.form-row input, .form-row textarea {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
  resize: vertical;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15,107,76,0.14);
}
.form-note { min-height: 1.2em; font-size: 0.88rem; color: var(--primary); margin: 0; }
.form-note.error { color: #C0392B; }

/* ===================== Footer ===================== */
.site-footer { background: var(--primary-darker); color: rgba(255,255,255,0.8); padding-top: 72px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin-top: 14px; }
.footer-col h4 { color: #fff; font-size: 0.95rem; margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: rgba(255,255,255,0.65); font-size: 0.9rem; transition: color .2s ease; }
.footer-col a:hover { color: var(--accent); }
.footer-contact li { color: rgba(255,255,255,0.65); font-size: 0.9rem; }
.footer-contact li a { color: rgba(255,255,255,0.65); transition: color .2s ease; }
.footer-contact li a:hover { color: var(--accent); }
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 22px 24px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
}
.footer-bottom-inner p { margin: 0; color: inherit; }

/* ===================== WhatsApp floating button ===================== */
.wa-float {
  position: fixed;
  left: 24px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 16px;
  border-radius: 999px;
  background: #25D366;
  color: #fff;
  box-shadow: var(--shadow-md);
  z-index: 900;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.wa-float:hover { background: #1EBE5A; transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.wa-float svg { width: 26px; height: 26px; flex-shrink: 0; }
.wa-float-label {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

/* ===================== Back to top ===================== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-md);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s ease, transform .25s ease, background .2s ease;
  z-index: 900;
}
.back-to-top svg { width: 20px; height: 20px; }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--primary-dark); }

/* ===================== Reveal animation ===================== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ===================== Responsive ===================== */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 320px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 320px; margin: 0 auto; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: 78px;
    left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .main-nav.open { max-height: 400px; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 8px 24px 20px; }
  .main-nav li { border-bottom: 1px solid var(--border); }
  .main-nav a { display: block; padding: 14px 0; }
  .header-actions .btn-sm { display: none; }
  .nav-toggle { display: flex; }

  .cards-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .vision-mission { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
  .section { padding: 64px 0; }
  .hero { padding: 56px 0 48px; }
}