/* ==========================================================================
   AMTEK SOLUSINDO — Design tokens
   Navy-dominant corporate-government palette, wing-motif signature element
   ========================================================================== */

:root{
  --navy-950:#081A2E;
  --navy-900:#0E2A4A;
  --navy-800:#153A5F;
  --navy-700:#1D4A75;
  --teal-600:#158577;
  --teal-500:#1B9E8C;
  --teal-300:#7FD1BE;
  --teal-100:#E4F5F1;
  --paper:#F5F8FA;
  --paper-dim:#EAF0F3;
  --white:#FFFFFF;
  --ink-900:#101820;
  --ink-700:#38495A;
  --ink-500:#66788A;
  --line:#DCE4EA;

  --font-display:'Space Grotesk', 'Inter', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:28px;

  --shadow-card: 0 12px 32px -18px rgba(8,26,46,0.35);
  --shadow-float: 0 20px 48px -16px rgba(8,26,46,0.45);

  --ease: cubic-bezier(.22,.68,0,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}

h1,h2,h3{
  font-family:var(--font-display);
  color:var(--navy-900);
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
h1{ font-size:clamp(2.1rem, 4vw, 3.4rem); font-weight:700; }
h2{ font-size:clamp(1.6rem, 3vw, 2.4rem); font-weight:700; }
h3{ font-size:1.15rem; font-weight:600; }
p{ margin:0 0 1em; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
ul{ margin:0; padding:0; list-style:none; }

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2.5px solid var(--teal-500);
  outline-offset:2px;
  border-radius:4px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:0.95rem;
  padding:14px 26px;
  border-radius:999px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
  white-space:nowrap;
}


.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--teal-500); color:var(--white); }
.btn-primary:hover{ background:var(--teal-600); }
.btn-outline{ border-color:var(--navy-800); color:var(--line); background:transparent; }
.btn-outline:hover{ background:var(--navy-900); color:var(--white); }
.btn-ghost-light{ border-color:rgba(255,255,255,0.35); color:var(--white); background:transparent; }
.btn-ghost-light:hover{ background:rgba(255,255,255,0.12); }
.btn-sm{ padding:10px 18px; font-size:0.85rem; }
.btn-block{ width:100%; }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(14,42,74,0.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.brand-logo{ height:58px; width:auto; }
.main-nav{ display:flex; gap:34px; }
.main-nav a{
  color:rgba(255,255,255,0.82);
  font-size:0.94rem;
  font-weight:500;
  position:relative;
  padding:6px 0;
  transition:color .2s;
}
.main-nav a::after{
  content:''; position:absolute; left:0; bottom:0; height:2px; width:0;
  background:var(--teal-300); transition:width .25s var(--ease);
}
.main-nav a:hover{ color:var(--white); }
.main-nav a:hover::after{ width:100%; }
.header-cta{ display:flex; gap:10px; align-items:center; }
.nav-toggle{ display:none; }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:linear-gradient(155deg, var(--navy-950) 0%, var(--navy-900) 55%, var(--navy-800) 100%);
  padding:76px 0 140px;
  overflow:hidden;
}
.hero-inner{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:56px;
  align-items:center;
  position:relative;
  z-index:2;
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:0.78rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--teal-300);
  margin-bottom:18px;
}
.hero h1{ color:var(--white); }
.hero-lead{ color:rgba(255,255,255,0.78); font-size:1.05rem; max-width:52ch; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin:30px 0 46px; }
.hero-stats{
  display:flex; gap:36px; flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,0.14);
  padding-top:28px;
}
.stat{ display:flex; flex-direction:column; }
.stat-num{ font-family:var(--font-display); font-size:1.9rem; font-weight:700; color:var(--white); }
.stat-label{ font-size:0.82rem; color:rgba(255,255,255,0.65); margin-top:2px; max-width:16ch; }

.hero-media{ position:relative; }
.wing-frame{
  position:relative;
  border-radius:0 0 120px 0;
  overflow:hidden;
  box-shadow:var(--shadow-float);
  aspect-ratio:4/4.6;
}
.wing-frame img{ width:100%; height:100%; object-fit:cover; }
.wing-frame::after{
  content:'';
  position:absolute; inset:0;
  background:linear-gradient(200deg, rgba(14,42,74,0) 40%, rgba(8,26,46,0.55) 100%);
}
.floating-card{
  position:absolute;
  left:-26px; bottom:-26px;
  background:var(--white);
  border-radius:var(--radius-md);
  padding:18px 22px;
  box-shadow:var(--shadow-card);
  max-width:230px;
}
.fc-mono{
  font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.06em;
  color:var(--teal-600); display:block; margin-bottom:6px; font-weight:600;
}
.floating-card p{ margin:0; color:var(--navy-900); font-size:0.92rem; line-height:1.4; }

.wing-divider{ position:absolute; left:0; right:0; bottom:-1px; line-height:0; z-index:1; }
.wing-divider svg{ width:100%; height:70px; display:block; }
.wing-divider path{ fill:var(--paper); }

/* ---------- Trust strip ---------- */
.trust-strip{ background:var(--paper); padding:48px 0 56px; text-align:center; }
.trust-label{ font-size:0.85rem; color:var(--ink-500); text-transform:uppercase; letter-spacing:0.05em; margin-bottom:20px; font-weight:600; }
.trust-badges{ display:flex; flex-wrap:wrap; gap:14px; justify-content:center; }
.badge-chip{
  background:var(--white);
  border:1px solid var(--line);
  color:var(--navy-800);
  font-size:0.88rem;
  font-weight:600;
  padding:11px 20px;
  border-radius:999px;
}
.trust-note{ margin-top:18px; margin-bottom:0; font-size:0.78rem; color:var(--ink-500); font-style:italic; }

/* ---------- Sections generic ---------- */
.section{ padding:96px 0; }
.section-light{ background:var(--paper); }
.section-light.alt{ background:var(--white); }
.section-dark{ background:linear-gradient(160deg, var(--navy-950), var(--navy-900)); }
.section-eyebrow{
  font-family:var(--font-mono);
  font-size:0.78rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--teal-600);
  margin-bottom:14px;
  font-weight:600;
}
.section-eyebrow-light{ color:var(--teal-300); }
.light-heading{ color:var(--white); }

/* ---------- About ---------- */
.about-grid{
  display:grid;
  grid-template-columns:1.2fr 0.8fr;
  gap:64px;
  align-items:start;
}
.about-text p{ font-size:1.02rem; color:var(--ink-700); max-width:60ch; }
.link-arrow{
  display:inline-block; margin-top:8px;
  color:var(--teal-600); font-weight:600; font-size:0.95rem;
  transition:transform .2s var(--ease);
}
.link-arrow:hover{ transform:translateX(4px); }

.leader-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:8px 8px 28px;
  box-shadow:var(--shadow-card);
}
.leader-photo{
  width:100%;
  aspect-ratio:1/1;
  object-fit:cover;
  object-position:top;
  border-radius:22px 22px 4px 4px;
  margin-bottom:22px;
}
.leader-card blockquote{
  margin:0 24px 16px;
  font-family:var(--font-display);
  font-size:1.05rem;
  color:var(--navy-900);
  line-height:1.5;
  border-left:3px solid var(--teal-500);
  padding-left:16px;
}
.leader-name{ margin:0 24px 2px; font-weight:700; color:var(--navy-900); }
.leader-role{ margin:0 24px; font-size:0.85rem; color:var(--ink-500); }

/* ---------- Visi Misi ---------- */
.vm-grid{
  display:grid;
  grid-template-columns:0.8fr 1.2fr;
  gap:64px;
}
.vm-text{ color:rgba(255,255,255,0.8); font-size:1.05rem; max-width:42ch; }
.vm-list{ display:flex; flex-direction:column; gap:16px; }
.vm-list li{
  position:relative;
  padding-left:30px;
  color:rgba(255,255,255,0.86);
  font-size:1rem;
}
.vm-list li::before{
  content:'';
  position:absolute; left:0; top:7px;
  width:14px; height:14px;
  background:var(--teal-500);
  clip-path:polygon(0 50%, 50% 0, 100% 50%, 50% 100%);
}

/* ---------- Keunggulan ---------- */
.adv-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:26px;
  margin-top:44px;
}
.adv-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:32px 28px;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease);
}
.adv-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-card); }
.adv-icon{
  width:52px; height:52px;
  border-radius:14px;
  background:var(--teal-100);
  color:var(--teal-600);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:20px;
}
.adv-card h3{ margin-bottom:10px; }
.adv-card p{ font-size:0.94rem; color:var(--ink-700); margin:0; }

/* ---------- Timeline ---------- */
.timeline{ position:relative; margin-top:50px; padding-left:6px; }
.timeline-line{
  position:absolute; left:29px; top:8px; bottom:8px; width:2px;
  background:repeating-linear-gradient(180deg, var(--line) 0 8px, transparent 8px 14px);
}
.timeline-item{
  position:relative;
  display:grid;
  grid-template-columns:60px 1fr;
  gap:28px;
  padding-bottom:40px;
}
.timeline-item:last-child{ padding-bottom:0; }
.timeline-node{
  width:60px; height:60px;
  border-radius:999px;
  background:var(--navy-900);
  color:var(--white);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); font-weight:600; font-size:0.82rem;
  position:relative; z-index:1;
  box-shadow:0 0 0 6px var(--paper);
}
.timeline-item:nth-child(2) .timeline-node{ background:var(--teal-600); }
.timeline-item:nth-child(3) .timeline-node{ background:var(--teal-500); }
.timeline-content{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:24px 28px;
}
.timeline-content ul{ display:flex; flex-direction:column; gap:12px; }
.timeline-content li{ font-size:0.98rem; color:var(--ink-700); line-height:1.5; }
.timeline-content strong{ color:var(--navy-900); }
.mono-tag{
  font-family:var(--font-mono);
  font-size:0.68rem;
  font-weight:600;
  letter-spacing:0.03em;
  text-transform:uppercase;
  background:var(--teal-100);
  color:var(--teal-600);
  padding:3px 8px;
  border-radius:5px;
  margin-right:8px;
}

/* ---------- Gallery ---------- */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  grid-auto-rows:150px;
  gap:16px;
  margin-top:44px;
}
.g-item{
  margin:0;
  border-radius:var(--radius-sm);
  overflow:hidden;
  grid-row:span 1;
  position:relative;
}
.g-item.g-tall{ grid-row:span 2; }
.g-item img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .5s var(--ease);
}
.g-item:hover img{ transform:scale(1.08); }

/* ---------- Kontak ---------- */
.kontak-grid{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:60px;
  align-items:start;
}
.kontak-lead{ max-width:48ch; }
.kontak-list{ display:flex; flex-direction:column; gap:22px; margin-top:32px; }
.kontak-list li{ display:flex; gap:16px; align-items:flex-start; }
.kontak-icon{
  width:40px; height:40px; flex:0 0 40px;
  border-radius:10px;
  background:var(--teal-100);
  color:var(--teal-600);
  display:flex; align-items:center; justify-content:center;
}
.kontak-label{ display:block; font-size:0.78rem; color:var(--ink-500); text-transform:uppercase; letter-spacing:0.04em; margin-bottom:2px; }
.kontak-list a{ color:var(--navy-900); font-weight:600; }
.kontak-list a:hover{ color:var(--teal-600); }
.kontak-list span{ color:var(--ink-700); font-size:0.95rem; }

.kontak-form-wrap{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:38px;
  box-shadow:var(--shadow-card);
}
.kontak-form h3{ margin-bottom:24px; }
.form-row{ margin-bottom:20px; display:flex; flex-direction:column; }
.form-row-split{ display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:0; }
.form-row-split > div{ display:flex; flex-direction:column; margin-bottom:20px; }
.form-row label{ font-size:0.88rem; font-weight:600; color:var(--navy-900); margin-bottom:7px; }
.form-row label span{ color:var(--teal-600); margin-left:2px; }
.form-row input, .form-row select, .form-row textarea{
  font-family:var(--font-body);
  font-size:0.95rem;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1.5px solid var(--line);
  background:var(--paper);
  color:var(--ink-900);
  transition:border-color .2s;
  resize:vertical;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{
  border-color:var(--teal-500);
  outline:none;
}
.form-error{
  display:none;
  font-size:0.8rem;
  color:#C0392B;
  margin-top:5px;
}
.form-row.error input, .form-row.error select, .form-row.error textarea{ border-color:#C0392B; }
.form-row.error .form-error{ display:block; }
.form-status{ text-align:center; font-size:0.9rem; margin:16px 0 0; min-height:1.2em; font-weight:600; }
.form-status.success{ color:var(--teal-600); }
.form-status.error{ color:#C0392B; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy-950); color:rgba(255,255,255,0.7); padding-top:64px; }
.footer-inner{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,0.1);
}
.footer-logo{ height:34px; margin-bottom:16px; filter:brightness(0) invert(1); opacity:0.92; }
.footer-brand p{ font-size:0.9rem; max-width:36ch; color:rgba(255,255,255,0.55); }
.footer-links h4, .footer-contact h4{ color:var(--white); font-size:0.85rem; text-transform:uppercase; letter-spacing:0.05em; margin-bottom:16px; }
.footer-links, .footer-contact{ display:flex; flex-direction:column; gap:10px; }
.footer-links a, .footer-contact a, .footer-contact span{ font-size:0.92rem; color:rgba(255,255,255,0.65); }
.footer-links a:hover, .footer-contact a:hover{ color:var(--teal-300); }
.footer-bottom{ padding:22px 24px; text-align:center; font-size:0.82rem; color:rgba(255,255,255,0.45); }

/* ---------- Floating WhatsApp ---------- */
.wa-float{
  position:fixed; right:24px; bottom:24px; z-index:90;
  width:58px; height:58px; border-radius:999px;
  background:var(--teal-500); color:var(--white);
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 12px 28px -8px rgba(27,158,140,0.55);
  transition:transform .2s var(--ease);
}
.wa-float:hover{ transform:scale(1.08); }

/* ---------- Reveal-on-scroll ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
}
[data-reveal].is-visible{ opacity:1; transform:translateY(0); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-media{ order:-1; max-width:420px; margin:0 auto 20px; }
  .about-grid, .vm-grid, .kontak-grid{ grid-template-columns:1fr; gap:40px; }
  .adv-grid{ grid-template-columns:1fr 1fr; }
  .footer-inner{ grid-template-columns:1fr 1fr; }
  .footer-brand{ grid-column:1 / -1; }
}

@media (max-width: 760px){
  .main-nav{
    position:fixed; top:76px; left:0; right:0;
    background:var(--navy-900);
    flex-direction:column;
    padding:20px 24px 28px;
    gap:0;
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .25s var(--ease), transform .25s var(--ease);
    border-bottom:1px solid rgba(255,255,255,0.08);
  }
  .main-nav.open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .main-nav a{ padding:14px 0; border-bottom:1px solid rgba(255,255,255,0.08); }
  .header-cta{ display:none; }
  .nav-toggle{
    display:flex; flex-direction:column; justify-content:center; gap:5px;
    width:38px; height:38px; background:none; border:none; cursor:pointer;
  }
  .nav-toggle span{ width:100%; height:2px; background:var(--white); border-radius:2px; transition:transform .25s, opacity .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); }

  .hero{ padding:48px 0 100px; }
  .hero-actions{ flex-direction:column; }
  .hero-actions .btn{ width:100%; }
  .hero-stats{ gap:22px; }

  .section{ padding:64px 0; }
  .adv-grid{ grid-template-columns:1fr; }
  .form-row-split{ grid-template-columns:1fr; gap:0; }

  .gallery-grid{ grid-template-columns:repeat(2, 1fr); grid-auto-rows:130px; }

  .floating-card{ left:12px; bottom:-20px; max-width:190px; padding:14px 16px; }
  .kontak-form-wrap{ padding:26px; }
}

@media (max-width: 480px){
  .wrap{ padding:0 18px; }
  .gallery-grid{ grid-template-columns:1fr 1fr; grid-auto-rows:120px; }
  .wa-float{ width:52px; height:52px; right:16px; bottom:16px; }
}