/* ===================================================================
   BRAINLAB101 — design tokens
=================================================================== */
:root {
  --cream: #f2efe4;
  --cream-soft: #f6f4ea;
  --ink: #1f2d1a;
  --ink-2: #17220f;
  --card-dark: #2a3a24;
  --card-dark-hover: #33452b;
  --lime: #dced3a;
  --lime-dim: #b8c72a;
  --border-dark: #5c6b45;
  --border-light: #d4d0bd;

  --on-dark-1: #f2efe4;
  --on-dark-2: #b9c0a8;
  --on-dark-3: #c8cdba;
  --on-dark-muted: #7d876a;

  --on-light-1: #1f2d1a;
  --on-light-2: #4a4f3e;
  --on-light-3: #6a705c;
  --on-light-muted: #8a8f7a;

  --font-display: 'Anton', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --container: 1240px;
  --pad: 48px;
}

@media (max-width: 640px) {
  :root { --pad: 22px; }
}

/* ===================================================================
   Base
=================================================================== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cream);
  font-family: var(--font-body);
  color: var(--on-light-2);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { opacity: .75; }
img, svg { max-width: 100%; display: block; }
.container { max-width: var(--container); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ===================================================================
   Reveal-on-scroll
=================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s ease, transform .7s ease;
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* ===================================================================
   Section label / badge
=================================================================== */
.badge {
  display: inline-block;
  border: 1.5px solid var(--on-light-1);
  border-radius: 99px;
  padding: 8px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--on-light-1);
}
.badge--on-dark { border-color: var(--lime); color: var(--lime); }

.lang-en {
  font-size: 13.5px;
  font-style: italic;
  color: var(--on-light-muted);
}
.lang-en--on-dark { color: var(--on-dark-muted); }
body.lang-en-hidden .lang-en { display: none; }

/* ===================================================================
   Photo slot (placeholder for client photography)
=================================================================== */
.photo-slot {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(circle at 1px 1px, rgba(31,45,26,.16) 1.5px, transparent 0) 0 0/16px 16px,
    var(--cream-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}
.photo-slot--on-dark {
  background:
    radial-gradient(circle at 1px 1px, rgba(242,239,228,.14) 1.5px, transparent 0) 0 0/16px 16px,
    var(--card-dark);
}
.photo-slot--on-lime {
  background:
    radial-gradient(circle at 1px 1px, rgba(31,45,26,.18) 1.5px, transparent 0) 0 0/16px 16px,
    #cfdf33;
}
.photo-slot__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px;
  text-align: center;
}
.photo-slot svg {
  width: 26px; height: 26px;
  opacity: .55;
  color: var(--on-light-3);
}
.photo-slot--on-dark svg { color: var(--on-dark-2); }
.photo-slot__label {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--on-light-muted);
  max-width: 220px;
}
.photo-slot--on-dark .photo-slot__label { color: var(--on-dark-muted); }

/* ===================================================================
   NAV + HERO
=================================================================== */
.hero-wrap { background: var(--ink); }

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 26px 0 0;
}
.nav__brand {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--on-dark-1);
  letter-spacing: .02em;
}
.nav__brand em { color: var(--lime); font-style: normal; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 600;
  color: var(--on-dark-3);
}
.nav__links a:hover { color: var(--lime); opacity: 1; }

.lang-toggle {
  display: flex;
  border: 1.5px solid var(--border-dark);
  border-radius: 99px;
  overflow: hidden;
  font-size: 12.5px;
  font-weight: 800;
}
.lang-toggle button {
  border: none;
  cursor: pointer;
  padding: 8px 14px;
  font-family: inherit;
  font-weight: 800;
  font-size: 12.5px;
  background: transparent;
  color: var(--on-dark-3);
}
.lang-toggle button.is-active {
  background: var(--lime);
  color: var(--ink);
}

.nav__cta {
  border: 1.5px solid var(--lime);
  color: var(--lime);
  padding: 9px 22px;
  border-radius: 99px;
  font-weight: 700;
}
.nav__cta:hover { background: var(--lime); color: var(--ink); opacity: 1; }

.nav__burger {
  display: none;
  border: 1.5px solid var(--border-dark);
  background: transparent;
  border-radius: 8px;
  width: 40px; height: 40px;
  padding: 0;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav__burger span { width: 18px; height: 2px; background: var(--on-dark-1); display: block; }

@media (max-width: 860px) {
  .nav__burger { display: flex; }
  .nav__links {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    position: absolute;
    left: 0; right: 0; top: 100%;
    margin-top: 16px;
    padding: 22px var(--pad) 26px;
    background: var(--ink);
    border-top: 1px solid var(--card-dark);
    z-index: 20;
  }
  .nav__links.open { display: flex; }
  .nav { position: relative; }
  .nav__cta { width: 100%; text-align: center; }
  .lang-toggle { align-self: flex-start; }
}

.hero {
  display: flex;
  gap: 48px;
  align-items: flex-start;
  padding: 76px 0 70px;
}
.hero__main { flex: 1; min-width: 0; }
.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--lime);
  margin-bottom: 20px;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 74px;
  line-height: 1.02;
  color: var(--on-dark-1);
  text-transform: uppercase;
  margin: 0;
  max-width: 640px;
}
.hero__lead {
  margin: 26px 0 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--on-dark-2);
  max-width: 480px;
}
.hero__lead-en { margin: 12px 0 0; max-width: 460px; }
.hero__actions { display: flex; gap: 16px; margin-top: 36px; align-items: center; flex-wrap: wrap; }

.btn-pill {
  background: var(--lime);
  color: var(--ink);
  font-weight: 800;
  font-size: 15px;
  padding: 15px 30px;
  border-radius: 99px;
  display: inline-block;
  transition: transform .2s ease;
}
.btn-pill:hover { transform: translateY(-2px); opacity: 1; }
.btn-text {
  color: var(--on-dark-1);
  font-weight: 700;
  font-size: 15px;
  border-bottom: 2px solid var(--lime);
  padding-bottom: 3px;
}

.hero__stats {
  background: var(--lime);
  border-radius: 14px;
  padding: 30px 32px;
  width: 280px;
  flex-shrink: 0;
  margin-top: 44px;
}
.hero__stats-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: #3a4413;
}
.hero__stats-sub {
  font-size: 13.5px;
  color: #3a4413;
  margin-top: 6px;
  font-weight: 600;
}
.stat {
  border-top: 1.5px solid var(--lime-dim);
  margin-top: 20px;
  padding-top: 18px;
}
.stat + .stat { margin-top: 18px; }
.stat__value {
  font-family: var(--font-display);
  font-size: 52px;
  color: var(--ink);
  line-height: 1;
}
.stat__label {
  font-size: 13.5px;
  color: #3a4413;
  font-weight: 600;
  margin-top: 6px;
}

.hero-photo {
  height: 520px;
  border-radius: 16px 16px 0 0;
  overflow: hidden;
}

@media (max-width: 980px) {
  .hero { flex-direction: column; }
  .hero__stats { width: 100%; margin-top: 28px; }
  .hero__title { font-size: 54px; }
  .hero-photo { height: 340px; }
}

/* ===================================================================
   KENAPA
=================================================================== */
.kenapa { padding: 100px 0 90px; }
.kenapa__row { display: flex; gap: 64px; align-items: flex-start; }
.kenapa__side { width: 250px; flex-shrink: 0; }
.kenapa__year-block { margin-top: 44px; }
.kenapa__year {
  font-family: var(--font-display);
  font-size: 46px;
  color: var(--on-light-1);
}
.kenapa__year-label {
  font-size: 13.5px;
  color: var(--on-light-3);
  font-weight: 600;
  margin-top: 4px;
}
.kenapa__photo { height: 320px; border-radius: 12px; overflow: hidden; margin-top: 36px; }

.kenapa__main { flex: 1; min-width: 0; }
.kenapa__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 46px;
  line-height: 1.1;
  color: var(--on-light-1);
  text-transform: uppercase;
  margin: 0;
  max-width: 640px;
}
.kenapa__title-en { margin: 14px 0 0; }
.kenapa__main p.body { margin: 28px 0 0; font-size: 16px; line-height: 1.75; color: var(--on-light-2); max-width: 560px; }
.kenapa__main p.body + p.body { margin-top: 16px; }
.kenapa__main strong { color: var(--on-light-1); }

.kenapa__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  margin-top: 44px;
}
.kenapa__col { border-top: 2.5px solid var(--on-light-1); padding-top: 16px; }
.kenapa__col-no { font-family: var(--font-mono); font-size: 12px; color: var(--on-light-muted); }
.kenapa__col-title { font-weight: 800; font-size: 15.5px; color: var(--on-light-1); margin-top: 8px; }
.kenapa__col-desc { font-size: 13.5px; line-height: 1.6; color: var(--on-light-3); margin-top: 6px; }

@media (max-width: 980px) {
  .kenapa__row { flex-direction: column; }
  .kenapa__side { width: 100%; display: flex; gap: 24px; align-items: flex-start; }
  .kenapa__year-block { margin-top: 0; }
  .kenapa__photo { flex: 1; margin-top: 0; height: 220px; }
}
@media (max-width: 640px) {
  .kenapa__side { flex-direction: column; }
  .kenapa__grid { grid-template-columns: 1fr; }
  .kenapa__title, .hero__title { font-size: 38px; }
}

/* ===================================================================
   SOLUSI
=================================================================== */
.solusi-wrap { background: var(--ink); }
.solusi { padding: 90px 0 100px; }
.solusi__head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 52px; gap: 24px; }
.solusi__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 46px;
  line-height: 1.1;
  color: var(--on-dark-1);
  text-transform: uppercase;
  margin: 24px 0 0;
  max-width: 560px;
}
.solusi__head-en { max-width: 240px; text-align: right; }

.solusi__grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.service-card {
  background: var(--card-dark);
  border-radius: 14px;
  padding: 30px 28px;
  transition: transform .25s ease, background .25s ease;
}
.service-card:hover { transform: translateY(-6px); background: var(--card-dark-hover); }
.service-card__top { display: flex; justify-content: space-between; align-items: center; }
.service-card__no { font-family: var(--font-mono); font-size: 12.5px; color: var(--lime); }
.service-card__arrow {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1.5px solid var(--border-dark);
  color: var(--lime);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
}
.service-card__title {
  font-family: var(--font-display);
  font-size: 23px;
  color: var(--on-dark-1);
  margin-top: 34px;
  text-transform: uppercase;
  letter-spacing: .01em;
}
.service-card__title-en { margin-top: 4px; }
.service-card__desc { font-size: 14px; line-height: 1.65; color: var(--on-dark-2); margin-top: 14px; }

@media (max-width: 980px) {
  .solusi__head { flex-direction: column; align-items: flex-start; }
  .solusi__head-en { text-align: left; max-width: 100%; }
  .solusi__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .solusi__grid { grid-template-columns: 1fr; }
  .solusi__title { font-size: 34px; }
}

/* ===================================================================
   KLIEN
=================================================================== */
.klien { padding: 100px 0 90px; }
.klien__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 46px;
  line-height: 1.1;
  color: var(--on-light-1);
  text-transform: uppercase;
  margin: 24px 0 0;
  max-width: 620px;
}

.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
}
.audience-card {
  border: 1.5px solid var(--border-light);
  border-radius: 14px;
  padding: 26px 24px;
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--cream-soft);
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}
.audience-card:hover {
  background: var(--lime);
  border-color: var(--on-light-1);
  transform: translateY(-4px);
}
.audience-card__top { display: flex; justify-content: space-between; }
.audience-card__no { font-family: var(--font-mono); font-size: 12px; color: var(--on-light-muted); }
.audience-card__mark { font-size: 20px; }
.audience-card__photo { height: 170px; border-radius: 8px; overflow: hidden; margin: 14px 0; }
.audience-card__title {
  font-family: var(--font-display);
  font-size: 24px;
  text-transform: uppercase;
  color: var(--on-light-1);
}
.audience-card__example { font-size: 13px; line-height: 1.55; color: var(--on-light-3); margin-top: 8px; }

.klien__note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--on-light-muted);
  font-family: var(--font-mono);
}

@media (max-width: 980px) {
  .audience-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .audience-grid { grid-template-columns: 1fr; }
  .klien__title { font-size: 34px; }
}

/* ===================================================================
   CTA
=================================================================== */
.cta-wrap { background: var(--ink); }
.cta { padding: 110px 0; text-align: center; }
.cta__eyebrow { font-family: var(--font-mono); font-size: 13px; letter-spacing: .16em; color: var(--lime); }
.cta__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 64px;
  line-height: 1.05;
  color: var(--on-dark-1);
  text-transform: uppercase;
  margin: 24px auto 0;
  max-width: 760px;
}
.cta__sub { margin: 22px auto 0; font-size: 16.5px; line-height: 1.7; color: var(--on-dark-2); max-width: 520px; }
.cta__actions { display: flex; gap: 16px; justify-content: center; margin-top: 40px; flex-wrap: wrap; }

.btn-pill--lg { font-size: 15.5px; padding: 16px 34px; }
.btn-outline {
  border: 1.5px solid var(--border-dark);
  color: var(--on-dark-1);
  font-weight: 700;
  font-size: 15.5px;
  padding: 16px 34px;
  border-radius: 99px;
}
.btn-outline:hover { border-color: var(--lime); color: var(--lime); opacity: 1; }

@media (max-width: 640px) {
  .cta__title { font-size: 38px; }
}

/* ===================================================================
   FOOTER
=================================================================== */
.footer { background: var(--ink-2); color: #8a9377; }
.footer__top { padding: 60px 0 40px; display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.footer__brand-block { max-width: 300px; }
.footer__brand { font-family: var(--font-display); font-size: 20px; color: var(--on-dark-1); }
.footer__brand em { color: var(--lime); font-style: normal; }
.footer__tagline { font-size: 13.5px; line-height: 1.7; margin: 14px 0 0; }

.footer__cols { display: flex; gap: 64px; font-size: 13.5px; flex-wrap: wrap; }
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; color: var(--border-dark); }

.footer__bottom {
  border-top: 1px solid var(--card-dark);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  font-family: var(--font-mono);
  flex-wrap: wrap;
  gap: 8px;
}