/* ========================================================================
   PRODI TPI — STPK Matauli
   Karakter: Bold Naval-Industrial
   Warna: Navy gelap dominan + Merah brand + Emas
   Font: Bebas Neue (display) + Inter (body)
   ======================================================================== */

:root {
  /* TPI Color System */
  --tpi-bg: #061F2E;             /* Navy paling dalam — DOMINAN */
  --tpi-bg-2: #0B3D5C;           /* Navy maritim */
  --tpi-bg-3: #122F44;           /* Navy menengah */
  --tpi-ink: #FFFFFF;            /* Teks utama (light theme) */
  --tpi-ink-muted: #B8C5D2;
  --tpi-ink-dim: #6B7E91;

  --tpi-red: #C8332A;            /* Merah brand */
  --tpi-red-dark: #8A1F18;
  --tpi-gold: #D4A53A;            /* Emas */
  --tpi-gold-soft: #E8C77A;
  --tpi-line: rgba(255,255,255,0.08);
  --tpi-line-strong: rgba(255,255,255,0.15);
  --tpi-paper: #F4EFE6;          /* Cream untuk section terang */
  --tpi-paper-dark: #E8DFD0;

  --font-display: 'Bebas Neue', 'Oswald', Impact, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --tpi-max: 1280px;
  --tpi-radius: 0;               /* Bold/industrial = no border-radius */
  --tpi-radius-sm: 2px;
  --shadow-hard: 6px 6px 0 0 var(--tpi-red);
  --shadow-soft: 0 12px 32px rgba(0,0,0,0.4);
  --tr: 0.22s cubic-bezier(0.6, 0, 0.2, 1);
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--tpi-ink);
  background: var(--tpi-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; }
.container { max-width: var(--tpi-max); margin: 0 auto; padding: 0 28px; }
.container--narrow { max-width: 920px; margin: 0 auto; padding: 0 28px; }

/* TYPOGRAPHY */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--tpi-ink);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--tpi-gold-soft);
}
.eyebrow::before {
  content: '';
  width: 24px; height: 2px;
  background: var(--tpi-red);
}
.section-title { font-size: clamp(32px, 5vw, 56px); margin-bottom: 16px; }
.section-lead { font-family: var(--font-body); font-size: 16px; color: var(--tpi-ink-muted); line-height: 1.7; max-width: 720px; text-transform: none; }

/* HEADER STPK BAR — link kembali */
.return-bar {
  background: #000;
  padding: 8px 0;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.return-bar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.return-bar a {
  color: var(--tpi-gold-soft);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color var(--tr);
}
.return-bar a:hover { color: var(--tpi-gold); }
.return-bar__right { color: var(--tpi-ink-muted); font-size: 11px; }

/* NAVBAR */
.tpi-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 31, 46, 0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--tpi-line-strong);
}
.tpi-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 24px;
}
.tpi-brand { display: flex; align-items: center; gap: 14px; }
.tpi-brand__mark {
  width: 48px; height: 48px;
  background: var(--tpi-red);
  display: grid; place-items: center;
  font-family: var(--font-display);
  color: var(--tpi-ink);
  font-size: 22px;
  letter-spacing: 0;
  border: 2px solid var(--tpi-gold);
}
.tpi-brand__text { line-height: 1.1; }
.tpi-brand__title {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--tpi-ink);
}
.tpi-brand__sub {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--tpi-gold-soft);
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 3px;
}

.tpi-menu { display: flex; gap: 4px; align-items: center; }
.tpi-menu__item { position: relative; }
.tpi-menu__link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tpi-ink-muted);
  padding: 12px 14px;
  transition: all var(--tr);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}
.tpi-menu__link:hover, .tpi-menu__link.active {
  color: var(--tpi-gold);
  border-bottom-color: var(--tpi-red);
}
.tpi-menu__link svg { width: 10px; height: 10px; opacity: 0.6; }

.tpi-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 240px;
  background: #0a2b40;
  border: 1px solid var(--tpi-line-strong);
  padding: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--tr);
  z-index: 50;
  box-shadow: var(--shadow-soft);
}
.tpi-menu__item:hover .tpi-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.tpi-dropdown a {
  display: block;
  padding: 10px 14px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--tpi-ink-muted);
  border-left: 2px solid transparent;
  transition: all var(--tr);
}
.tpi-dropdown a:hover {
  color: var(--tpi-gold);
  background: rgba(212, 165, 58, 0.05);
  border-left-color: var(--tpi-red);
  padding-left: 18px;
}
.tpi-dropdown a.active { color: var(--tpi-gold); border-left-color: var(--tpi-red); }

.tpi-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--tpi-red);
  color: var(--tpi-ink);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.1em;
  padding: 12px 22px;
  transition: all var(--tr);
  border: 2px solid var(--tpi-red);
}
.tpi-cta:hover {
  background: transparent;
  color: var(--tpi-gold);
  border-color: var(--tpi-gold);
}

.tpi-hamburger {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.tpi-hamburger span { width: 22px; height: 2px; background: var(--tpi-ink); transition: all var(--tr); }

/* BREADCRUMB */
.tpi-crumbs {
  background: var(--tpi-bg-3);
  padding: 16px 0;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tpi-ink-dim);
  border-bottom: 1px solid var(--tpi-line);
}
.tpi-crumbs a { color: var(--tpi-gold-soft); transition: color var(--tr); }
.tpi-crumbs a:hover { color: var(--tpi-gold); }
.tpi-crumbs__sep { margin: 0 12px; color: var(--tpi-red); font-weight: 700; }
.tpi-crumbs__current { color: var(--tpi-ink); font-weight: 600; }

/* PAGE HERO */
.tpi-hero {
  position: relative;
  padding: 96px 0 120px;
  overflow: hidden;
  border-bottom: 4px solid var(--tpi-red);
}
.tpi-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 0%, rgba(6,31,46,0.8) 80%),
    repeating-linear-gradient(45deg, transparent 0, transparent 60px, rgba(212,165,58,0.03) 60px, rgba(212,165,58,0.03) 62px);
}
.tpi-hero__inner {
  position: relative;
  max-width: 920px;
}
.tpi-hero h1 {
  font-size: clamp(48px, 8vw, 96px);
  line-height: 0.92;
  margin: 18px 0;
}
.tpi-hero h1 em {
  font-style: normal;
  color: var(--tpi-red);
  display: block;
}
.tpi-hero p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--tpi-ink-muted);
  max-width: 680px;
}

/* SECTION */
.tpi-section { padding: 96px 0; }
.tpi-section--cream { background: var(--tpi-paper); color: #1A1A1A; }
.tpi-section--cream h1, .tpi-section--cream h2, .tpi-section--cream h3, .tpi-section--cream h4 { color: var(--tpi-bg); }
.tpi-section--cream .section-lead, .tpi-section--cream .prose p { color: #3A3A3A; }
.tpi-section--cream .eyebrow { color: var(--tpi-red-dark); }
.tpi-section--cream .eyebrow::before { background: var(--tpi-red); }
.tpi-section--darker { background: #04161F; }

.section-head { margin-bottom: 56px; }
.section-head--center { text-align: center; }
.section-head--center .section-lead { margin: 0 auto; }
.section-head--center .eyebrow { justify-content: center; }

/* PROSE */
.prose p { margin-bottom: 16px; font-size: 16px; line-height: 1.8; color: var(--tpi-ink-muted); }
.prose strong { color: var(--tpi-ink); font-weight: 600; }
.prose h3 {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tpi-gold);
  margin: 32px 0 14px;
}
.prose ul, .prose ol { margin: 12px 0 20px 24px; }
.prose li { margin-bottom: 8px; line-height: 1.7; color: var(--tpi-ink-muted); }
.tpi-section--cream .prose strong { color: var(--tpi-bg); }
.tpi-section--cream .prose h3 { color: var(--tpi-red-dark); }
.tpi-section--cream .prose li { color: #3A3A3A; }

/* BUTTONS */
.btn-tpi {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.12em;
  padding: 14px 28px;
  transition: all var(--tr);
  text-transform: uppercase;
  border: 2px solid transparent;
}
.btn-tpi--red { background: var(--tpi-red); color: var(--tpi-ink); border-color: var(--tpi-red); }
.btn-tpi--red:hover { background: transparent; color: var(--tpi-gold); border-color: var(--tpi-gold); }
.btn-tpi--gold { background: var(--tpi-gold); color: var(--tpi-bg); border-color: var(--tpi-gold); }
.btn-tpi--gold:hover { background: transparent; color: var(--tpi-gold); }
.btn-tpi--ghost { background: transparent; color: var(--tpi-ink); border-color: var(--tpi-line-strong); }
.btn-tpi--ghost:hover { border-color: var(--tpi-gold); color: var(--tpi-gold); }
.btn-tpi--outline-red { background: transparent; color: var(--tpi-red); border-color: var(--tpi-red); }
.btn-tpi--outline-red:hover { background: var(--tpi-red); color: var(--tpi-ink); }

/* CARDS */
.tpi-card {
  background: var(--tpi-bg-3);
  border: 1px solid var(--tpi-line-strong);
  padding: 32px 28px;
  transition: all var(--tr);
  position: relative;
}
.tpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--tpi-red);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--tr);
}
.tpi-card:hover::before { transform: scaleY(1); }
.tpi-card:hover { background: #143348; }
.tpi-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--tpi-ink);
  margin-bottom: 12px;
}
.tpi-card p { font-size: 14.5px; color: var(--tpi-ink-muted); line-height: 1.7; }

.tpi-card-num {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--tpi-red);
  margin-bottom: 12px;
}

/* INFO BOX */
.tpi-info {
  background: var(--tpi-bg-3);
  border-left: 4px solid var(--tpi-gold);
  padding: 24px 28px;
  margin: 24px 0;
}
.tpi-info--red { border-left-color: var(--tpi-red); }
.tpi-info strong {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--tpi-gold-soft);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.tpi-info p { color: var(--tpi-ink-muted); font-size: 14.5px; line-height: 1.65; margin: 0; }
.tpi-info a { color: var(--tpi-gold); border-bottom: 1px solid var(--tpi-gold); }
.tpi-section--cream .tpi-info { background: rgba(212, 165, 58, 0.12); border-left-color: var(--tpi-red); }
.tpi-section--cream .tpi-info strong { color: var(--tpi-red-dark); }
.tpi-section--cream .tpi-info p { color: #3A3A3A; }
.tpi-section--cream .tpi-info a { color: var(--tpi-red-dark); border-bottom-color: var(--tpi-red); }

/* TABLE — Industrial style */
.tpi-table-wrap {
  border: 1px solid var(--tpi-line-strong);
  background: var(--tpi-bg-3);
  overflow-x: auto;
}
.tpi-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.tpi-table th {
  background: var(--tpi-red);
  color: var(--tpi-ink);
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-align: left;
  padding: 14px 18px;
  font-size: 13px;
  text-transform: uppercase;
  font-weight: 400;
}
.tpi-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--tpi-line);
  color: var(--tpi-ink-muted);
  vertical-align: top;
}
.tpi-table tr:last-child td { border-bottom: none; }
.tpi-table tr:hover td { background: #143348; color: var(--tpi-ink); }
.tpi-table strong { color: var(--tpi-ink); }
.tpi-section--cream .tpi-table-wrap { background: var(--tpi-ink); border-color: rgba(0,0,0,0.1); }
.tpi-section--cream .tpi-table td { color: #3A3A3A; border-bottom-color: rgba(0,0,0,0.06); }
.tpi-section--cream .tpi-table strong { color: var(--tpi-bg); }
.tpi-section--cream .tpi-table tr:hover td { background: rgba(212, 165, 58, 0.08); color: var(--tpi-bg); }

/* FALLBACK / EMPTY STATE */
.tpi-fallback {
  border: 2px dashed var(--tpi-line-strong);
  padding: 56px 32px;
  text-align: center;
  margin: 32px 0;
}
.tpi-fallback__icon {
  width: 64px; height: 64px;
  background: var(--tpi-bg-3);
  border: 1px solid var(--tpi-line-strong);
  display: grid; place-items: center;
  margin: 0 auto 20px;
  color: var(--tpi-gold-soft);
}
.tpi-fallback__icon svg { width: 28px; height: 28px; }
.tpi-fallback h3 { font-family: var(--font-display); font-size: 24px; margin-bottom: 12px; color: var(--tpi-ink); }
.tpi-fallback p { color: var(--tpi-ink-muted); max-width: 520px; margin: 0 auto 24px; line-height: 1.7; }

/* FOOTER */
.tpi-footer {
  background: #04161F;
  padding: 64px 0 0;
  position: relative;
  border-top: 4px solid var(--tpi-red);
}
.tpi-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.tpi-footer h4 {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--tpi-gold);
  margin-bottom: 18px;
}
.tpi-footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.tpi-footer a {
  font-size: 13.5px;
  color: var(--tpi-ink-dim);
  transition: color var(--tr);
}
.tpi-footer a:hover { color: var(--tpi-gold-soft); }
.tpi-footer p { font-size: 14px; color: var(--tpi-ink-dim); line-height: 1.7; margin: 14px 0; }
.tpi-footer-bottom {
  border-top: 1px solid var(--tpi-line);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}
.tpi-footer-bottom span { color: var(--tpi-ink-dim); font-size: 12.5px; }
.tpi-tagline {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.08em;
  color: var(--tpi-red);
  margin-top: 24px;
}

/* RESPONSIVE */
@media (max-width: 1100px) {
  .tpi-menu__link { font-size: 11.5px; padding: 10px 10px; }
  .tpi-footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 900px) {
  .tpi-menu {
    display: none;
    position: fixed;
    top: 90px;
    left: 0; right: 0;
    background: var(--tpi-bg);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    border-top: 1px solid var(--tpi-line-strong);
    max-height: calc(100vh - 90px);
    overflow-y: auto;
  }
  .tpi-menu.open { display: flex; }
  .tpi-menu__item { width: 100%; }
  .tpi-menu__link { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--tpi-line); }
  .tpi-dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    border: 0; background: rgba(0,0,0,0.3); padding: 8px;
    margin: 4px 0 8px;
    display: none;
  }
  .tpi-menu__item.open .tpi-dropdown { display: block; }
  .tpi-cta { display: none; }
  .tpi-hamburger { display: flex; }
  .tpi-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .tpi-hamburger.open span:nth-child(2) { opacity: 0; }
  .tpi-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .tpi-hero { padding: 64px 0 80px; }
  .tpi-section { padding: 64px 0; }
}
@media (max-width: 640px) {
  .tpi-footer-grid { grid-template-columns: 1fr; gap: 32px; }
}