/* =========================================================
   D-TECH — Digitalisasi Pembelajaran
   Design tokens
   ========================================================= */
:root {
  --teal-deep: #0f4a4e;
  --teal: #16646b;
  --teal-bright: #1c7f88;
  --cyan-accent: #2fd8d1;
  --brown-deep: #2c1e15;
  --brown: #3b271b;
  --cream: #f3f1ea;
  --cream-2: #ebe8de;
  --white: #ffffff;
  --ink: #232019;
  --ink-soft: #55504a;
  --line: rgba(35, 32, 25, 0.10);

  --font-display: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --container: 1180px;
  --shadow-card: 0 10px 30px rgba(20, 30, 30, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0;
  line-height: 1.2;
  font-weight: 600;
}

a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

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

.eyebrow {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  text-underline-offset: 3px;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid var(--cyan-accent); outline-offset: 2px; }

.btn-white { background: var(--white); color: var(--brown-deep); text-decoration: none; }
.btn-white:hover { background: var(--cream-2); }

.btn-brown { background: var(--brown); color: var(--white); text-decoration: none; }
.btn-brown:hover { background: var(--brown-deep); }

.btn-teal { background: var(--teal); color: var(--white); text-decoration: none; }
.btn-teal:hover { background: var(--teal-deep); }

.btn-outline { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--brown-deep); }

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(15, 74, 78, 0.0);
  transition: background 0.25s ease, box-shadow 0.25s ease, backdrop-filter 0.25s ease;
  padding: 18px 0;
}
.site-header.scrolled {
  background: rgba(20, 32, 30, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  padding: 10px 0;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-logo { display: flex; align-items: center; gap: 10px; }
.site-logo img { height: 50px; width: auto; }

.nav-links {
  display: flex;
  gap: 30px;
  align-items: center;
}
.nav-links a {
  color: var(--white);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.nav-links a:hover { border-color: var(--cyan-accent); color: var(--cyan-accent); }

.nav-cta { display: none; }
@media (min-width: 860px) { .nav-cta { display: inline-flex; } }

.nav-toggle {
  display: inline-flex;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.6rem;
  padding: 4px;
}
@media (min-width: 860px) { .nav-toggle { display: none; } }
@media (max-width: 859px) {
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--brown-deep);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    display: none;
  }
  .nav-links.open { display: flex; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: top;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(15,20,18,0.35) 0%, rgba(15,20,18,0.15) 40%, rgba(15,20,18,0.55) 100%);
}
.hero-inner {
  position: relative;
  width: 100%;
  padding-bottom: 64px;
}
.hero-card {
  background: rgba(44, 30, 21, 0.92);
  color: var(--cream);
  max-width: 520px;
  padding: 40px 38px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}
.hero-card h1 {
  color: var(--cyan-accent);
  font-size: clamp(2rem, 4vw, 2.7rem);
  margin-bottom: 18px;
}
.hero-card p { color: var(--cream); opacity: 0.92; margin-bottom: 26px; }

/* =========================================================
   Section basics
   ========================================================= */
section { padding: 90px 0; }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  text-align: center;
  margin-bottom: 56px;
  color: var(--ink);
}
.section-title.on-dark { color: var(--white); }

/* Services grid */
.services { background: var(--cream); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 42px 28px;
}
@media (max-width: 860px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .services-grid { grid-template-columns: 1fr; } }

.service-item { text-align: center; }
/* .service-item .icon-wrap { */
.service-item .img-wrap {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  /* color: var(--teal-bright); */
}
.service-item .img-wrap img{ width: 100%; height: 100%; }
.service-item p { font-size: 0.95rem; color: var(--ink-soft); margin: 0; }

/* CTA split */
.cta-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
}
@media (max-width: 760px) { .cta-split { grid-template-columns: 1fr; } }

.cta-split-panel {
  padding: 70px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
}
.cta-split-panel.teal { background: var(--teal); color: var(--white); }
.cta-split-panel.brown { background: var(--brown); color: var(--cream); }
.cta-split-panel h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); color: var(--white); }
.cta-split-panel p { max-width: 46ch; }
.cta-split figure { margin: 0; height: 100%; min-height: 290px; overflow: hidden; }
.cta-split figure img { width: 100%; height: 100%; object-fit: cover; }

/* News / articles */
.news { background: var(--cream-2); }
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
@media (max-width: 720px) { .news-grid { grid-template-columns: 1fr; } }

.news-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 30px 32px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.news-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(20,30,30,0.14); }
.news-card .news-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--teal-deep);
  text-decoration: underline;
}
.news-card .news-title svg { flex-shrink: 0; width: 20px; height: 20px; }
.news-card p { margin: 0; color: var(--ink-soft); }

/* Testimonials */
.testimonials {
  background: var(--brown-deep);
  color: var(--white);
  text-align: center;
  background-image:
    linear-gradient(180deg, rgba(30, 20, 14, 0.88), rgba(30, 20, 14, 0.92)),
    repeating-linear-gradient(135deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 26px);
}
.testimonials .eyebrow { display: block; margin-top: 10px; margin-bottom: 44px; }
.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 720px) { .testimonial-grid { grid-template-columns: 1fr; } }
.testimonial-card {
  background: var(--cream);
  color: var(--ink);
  border-radius: var(--radius-md);
  padding: 40px 34px;
  text-align: center;
}
.testimonial-card img { width: 62px; height: 62px; margin: 0 auto 22px; }
.testimonial-card p.quote { font-style: normal; color: var(--ink-soft); margin-bottom: 20px; }
.testimonial-card .school { font-weight: 700; color: var(--teal-bright); letter-spacing: 0.03em; text-transform: uppercase; font-size: 0.85rem; }

/* Case study */
.case-study { background: var(--cream); }
.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 30px;
}
@media (max-width: 720px) { .case-grid { grid-template-columns: 1fr; } }
.case-figure { margin: 0; }
.case-figure img { border-radius: var(--radius-md); box-shadow: var(--shadow-card); }
.case-figure figcaption { margin-top: 14px; text-align: center; color: var(--ink-soft); font-size: 0.92rem; }

.feature-strip {
  text-align: center;
  margin: 80px 0 60px;
}
.feature-strip h3 { font-size: clamp(1.3rem, 2.6vw, 1.8rem); margin-bottom: 40px; }
.feature-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 780px;
  margin: 0 auto;
}
@media (max-width: 640px) { .feature-strip-grid { grid-template-columns: repeat(2, 1fr); } }
.feature-strip-item .icon-wrap { width: 50px; height: 50px; margin: 0 auto 12px; color: var(--teal-bright); }
.feature-strip-item .icon-wrap svg { width: 100%; height: 100%; }
.feature-strip-item span { font-weight: 700; letter-spacing: 0.02em; font-size: 0.92rem; }

.before-after {
  display: grid;
  grid-template-columns: 1fr auto 1fr 1.3fr;
  align-items: center;
  gap: 26px;
}
.before-after .ba-col { min-width: 0; }
@media (max-width: 900px) {
  .before-after { grid-template-columns: 1fr; text-align: center; }
  .before-after .arrow { transform: rotate(90deg); margin: 0 auto; }
}
.before-after .ba-label { font-size: 1.3rem; font-weight: 700; text-align: center; margin-bottom: 10px; }
.before-after figure { margin: 0; }
.before-after img { border-radius: var(--radius-sm); box-shadow: var(--shadow-card); }
.before-after .arrow { color: var(--ink); width: 46px; height: 46px; justify-self: center; }
.before-after .ba-note { color: var(--ink-soft); font-size: 0.95rem; }

/* Contact */
.contact { background: var(--brown-deep); color: var(--cream); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }
.contact h2 { color: var(--cyan-accent); font-size: clamp(1.8rem, 3.4vw, 2.4rem); margin-bottom: 26px; }
.contact address { font-style: normal; margin-bottom: 22px; line-height: 1.8; }
.contact .company-name { font-weight: 700; color: var(--white); }
.contact .contact-line { margin-bottom: 6px; }
.contact .site-link { color: var(--cyan-accent); text-decoration: underline; display: inline-block; margin-bottom: 30px; }
.contact figure { margin: 0; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-card); }

/* Footer */
.site-footer {
  background: #1c130d;
  color: rgba(243,241,234,0.6);
  text-align: center;
  padding: 26px 0;
  font-size: 0.85rem;
}
.site-footer a { color: var(--cyan-accent); text-decoration: underline; }

/* Article page */
.article-hero {
  padding: 160px 0 40px;
  background: var(--brown-deep);
  color: var(--white);
}
.article-hero .eyebrow { margin-bottom: 14px; display: block; }
.article-hero h1 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
.article-body { padding: 60px 0 100px; }
.article-body img { border-radius: var(--radius-md); box-shadow: var(--shadow-card); margin-bottom: 30px; }
.article-body p { font-size: 1.05rem; color: var(--ink); margin-bottom: 22px; max-width: 74ch; }
.article-source { font-style: italic; color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 34px; }
.article-back { display: inline-block; margin-top: 10px; color: var(--teal-deep); font-weight: 600; text-decoration: underline; }

/* Utility */
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--white); color: var(--ink);
  padding: 10px 16px; z-index: 1000;
}
.skip-link:focus { left: 12px; top: 12px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}