/* =========================================================
   PT ADI PRATAMA METAL INDUSTRI — MAIN STYLESHEET
   Design language: "Surface Texture" — precision metal finishing
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* --- Color tokens (brief-mandated) --- */
  --color-primary: #355872;
  --color-secondary: #7AAACE;
  --color-accent: #9CD5FF;
  --color-bg: #F7F8F0;

  /* --- Extended tokens --- */
  --color-ink: #10202B;
  --color-steel: #C2CDD6;
  --color-white: #FFFFFF;
  --color-primary-rgb: 53, 88, 114;
  --color-accent-rgb: 156, 213, 255;

  /* --- Typography --- */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* --- Spacing scale --- */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  /* --- Layout --- */
  --container-width: 1200px;
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 28px;

  /* --- Motion --- */
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --transition-fast: 0.25s var(--ease-out);
  --transition-medium: 0.5s var(--ease-smooth);
}

/* =========================================================
   RESET
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: auto; /* Lenis handles smoothing */
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Visible keyboard focus */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* =========================================================
   TYPOGRAPHY
   ========================================================= */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-primary);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.75rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.25rem); }
h3 { font-size: clamp(1.35rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.15rem; }

p { color: var(--color-ink); opacity: 0.85; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin-bottom: var(--space-sm);
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--color-secondary);
  display: inline-block;
}

.section-lead {
  max-width: 640px;
  font-size: 1.1rem;
}

/* =========================================================
   LAYOUT UTILITIES
   ========================================================= */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

section { position: relative; padding: var(--space-xl) 0; }

@media (max-width: 768px) {
  section { padding: var(--space-lg) 0; }
  .container { padding: 0 var(--space-sm); }
}

.grid { display: grid; gap: var(--space-md); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 900px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* Surface texture background — signature grain pattern */
.surface-texture {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: radial-gradient(circle, rgba(53,88,114,0.12) 1px, transparent 1px);
  background-size: 14px 14px;
  mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
}

.divider-grain {
  height: 64px;
  width: 100%;
  background-image: radial-gradient(circle, var(--color-secondary) 1px, transparent 1.4px);
  background-size: 10px 10px;
  opacity: 0.25;
  mask-image: radial-gradient(ellipse 60% 100% at 50% 50%, black, transparent);
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
  box-shadow: 0 4px 18px rgba(var(--color-primary-rgb), 0.25);
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 26px rgba(var(--color-primary-rgb), 0.35);
  background: var(--color-ink);
}

.btn-outline {
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-bg);
  transform: translateY(-3px);
}

.btn-arrow {
  display: inline-block;
  transition: transform var(--transition-fast);
}
.btn:hover .btn-arrow { transform: translateX(5px); }

/* =========================================================
   NAVIGATION
   ========================================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.4rem 0;
  transition: padding var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.navbar.is-scrolled {
  padding: 0.85rem 0;
  background: rgba(247, 248, 240, 0.85);
  backdrop-filter: blur(14px);
  box-shadow: 0 4px 24px rgba(16, 32, 43, 0.06);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.logo-mark {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex; align-items: center; justify-content: center;
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  flex-shrink: 0;
  overflow: hidden;
  padding: 0;
}
.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}
.logo-text-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--color-secondary);
  font-weight: 400;
  margin-top: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-ink);
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--color-secondary);
  transition: width var(--transition-fast);
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--color-primary); }

.nav-cta { display: flex; align-items: center; gap: var(--space-sm); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  z-index: 1001;
}
.nav-toggle span {
  width: 20px; height: 2px;
  background: var(--color-bg);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(78vw, 360px);
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-medium);
    box-shadow: -10px 0 40px rgba(16,32,43,0.12);
  }
  .nav-links.is-open { transform: translateX(0); }
  .nav-links a { font-size: 1.3rem; }
  .nav-cta { display: none; }
}

/* =========================================================
   LOADING SCREEN
   ========================================================= */
.loader {
  position: fixed;
  inset: 0;
  background: var(--color-primary);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.loader-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.loader-text {
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--color-bg);
  letter-spacing: 0.02em;
  display: flex;
  gap: 0.15em;
}
.loader-text span {
  display: inline-block;
  opacity: 0;
  transform: translateY(16px);
}
.loader-progress {
  position: relative;
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
}

/* =========================================================
   CARDS — Services
   ========================================================= */
.service-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(53,88,114,0.08);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  isolation: isolate;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%), rgba(var(--color-accent-rgb), 0.18), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: -1;
}
.service-card:hover::before { opacity: 1; }
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(16,32,43,0.1);
  border-color: rgba(53,88,114,0.18);
}
.service-card .service-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-secondary);
  letter-spacing: 0.1em;
}
.service-card .service-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  margin: var(--space-sm) 0;
  color: var(--color-primary);
}
.service-card h3 { margin-bottom: 0.5rem; }
.service-card p { font-size: 0.93rem; margin-bottom: var(--space-sm); }
.service-card .service-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
}
.service-card .service-link svg { transition: transform var(--transition-fast); }
.service-card:hover .service-link svg { transform: translateX(4px); }

/* =========================================================
   STAT / SPEC SHEET BLOCK
   ========================================================= */
.spec-sheet {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid rgba(53,88,114,0.15);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-white);
}
.spec-item {
  padding: var(--space-md) var(--space-sm);
  text-align: left;
  border-right: 1px solid rgba(53,88,114,0.12);
  position: relative;
}
.spec-item:last-child { border-right: none; }
.spec-item .spec-value {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 500;
  color: var(--color-primary);
  display: flex;
  align-items: baseline;
  gap: 0.15em;
}
.spec-item .spec-unit { font-size: 1.1rem; color: var(--color-secondary); }
.spec-item .spec-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.65;
  margin-top: 0.4rem;
}
@media (max-width: 900px) {
  .spec-sheet { grid-template-columns: repeat(2, 1fr); }
  .spec-item:nth-child(2) { border-right: none; }
  .spec-item:nth-child(1), .spec-item:nth-child(2) { border-bottom: 1px solid rgba(53,88,114,0.12); }
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: var(--color-ink);
  color: var(--color-bg);
  padding: var(--space-xl) 0 var(--space-md);
}
.footer h4, .footer .logo { color: var(--color-bg); }
.footer a { opacity: 0.75; transition: opacity var(--transition-fast), color var(--transition-fast); }
.footer a:hover { opacity: 1; color: var(--color-accent); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(247,248,240,0.12);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: var(--space-sm);
  font-weight: 500;
}
.footer-grid ul { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-grid p { color: var(--color-bg); opacity: 0.7; font-size: 0.92rem; max-width: 280px; }

.social-icons { display: flex; gap: 0.8rem; margin-top: var(--space-sm); }
.social-icons a {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(247,248,240,0.2);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}
.social-icons a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-4px) rotate(8deg);
  color: var(--color-ink);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  font-size: 0.85rem;
  opacity: 0.6;
  flex-wrap: wrap;
  gap: 1rem;
}

/* =========================================================
   AOS-style reveal fallback classes (used with JS IntersectionObserver
   in addition to AOS library) and Lottie icon wrapper
   ========================================================= */
.lottie-icon { width: 100%; height: 100%; }

/* =========================================================
   SCROLLBAR (subtle, on-brand)
   ========================================================= */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-secondary); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

.gallery-item video {
  width: 100%;
  height: 100%;
  object-fit: contain; /* Video ditampilkan utuh */
  background-color: #000; /* Background hitam untuk area kosong */
}