/* ===== Petrogas Marine — base styles ===== */
:root {
  --navy-950: #050726;
  --navy-900: #090c3d;
  --navy-800: #0f1357;
  --navy-700: #161b7a;
  --navy-600: #1e24a0;
  --blue-500: #3945d6;
  --blue-400: #6c7cff;
  --red-500: #c8102e;
  --red-400: #ef3b4e;
  --ink-900: #081018;
  --ink-600: #4c5b6b;
  --paper-0: #ffffff;
  --paper-50: #f5f8fa;
  --paper-100: #eaf0f4;
  --border: #dbe4ea;
  --radius: 4px;
  --shadow-md: 0 10px 32px rgba(5, 13, 23, 0.14);
  --shadow-lg: 0 30px 80px rgba(5, 13, 23, 0.35);
  --max-w: 1220px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Space Grotesk", var(--font);
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink-900);
  background: var(--paper-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.08;
  margin: 0 0 0.5em;
  letter-spacing: -0.02em;
  font-weight: 700;
}
p { margin: 0 0 1em; color: var(--ink-600); }
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

/* Film-grain texture used over dark sections for depth */
.grain {
  position: absolute; inset: 0; pointer-events: none;
  opacity: 0.35; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* "Manifest tag" style eyebrow: [ 01 / LABEL ] with corner brackets */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 18px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 2px;
}
.eyebrow .idx { color: var(--red-400); }
.section-head.center .eyebrow { margin-left: auto; margin-right: auto; }
.page-hero .eyebrow, .bg-navy .eyebrow {
  color: var(--blue-400);
  border-color: rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.07);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 2px;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease, color 0.2s ease, border-color .2s ease;
}
.btn::after { content: "→"; transition: transform 0.15s ease; }
.btn:hover::after { transform: translateX(3px); }
.btn-primary {
  background: var(--red-400);
  color: var(--navy-950);
  box-shadow: 4px 4px 0 var(--navy-950);
}
.btn-primary:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--navy-950); }
.btn-ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.btn-ghost:hover { background: #fff; color: var(--navy-950); border-color: #fff; }
.btn-outline {
  background: transparent;
  border-color: var(--navy-800);
  color: var(--navy-800);
}
.btn-outline:hover { background: var(--navy-800); color: #fff; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy-950);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
  letter-spacing: -0.01em;
}
.brand .mark {
  width: 34px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.brand .mark img { width: 100%; height: 100%; object-fit: contain; }
.brand small {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: #a3aeff;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  position: relative;
  color: rgba(255,255,255,0.75);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 10px 16px;
  transition: color 0.15s;
}
.nav-links a::after {
  content: "";
  position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px;
  background: var(--blue-400);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.2s ease;
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none;
  background: transparent; border: none; cursor: pointer;
  width: 40px; height: 40px; align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 22px; height: 2px; background: #fff;
  position: relative; transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after { position: absolute; top: 7px; }

/* ===== Hero (full-bleed, art-directed) ===== */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  min-height: 88vh;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
}
.hero-bg {
  position: absolute; inset: 0; z-index: -2;
  background-image:
    linear-gradient(180deg, rgba(5,13,23,0.55) 0%, rgba(5,13,23,0.65) 40%, var(--navy-950) 96%),
    linear-gradient(90deg, rgba(5,13,23,0.75), rgba(5,13,23,0.15)),
    url("https://images.unsplash.com/photo-1494412651409-8963ce7935a7?q=80&w=1800&auto=format&fit=crop");
  background-size: cover;
  background-position: center;
  filter: saturate(0.75) contrast(1.08);
}
.hero-bg::after { content: ""; position: absolute; inset: 0; opacity: 0.4; mix-blend-mode: overlay; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
.hero-content {
  position: relative;
  z-index: 2;
  padding: 160px 0 72px;
  width: 100%;
}
.hero-top-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; flex-wrap: wrap; }
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 700;
  color: #fff;
  max-width: 820px;
  letter-spacing: -0.03em;
}
.hero h1 .accent { color: var(--blue-400); font-style: italic; }
.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.82);
  max-width: 520px;
  margin-bottom: 0;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.hero-rule { border-top: 1px solid rgba(255,255,255,0.18); margin-top: 56px; padding-top: 26px; }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.hero-stats div { border-left: 1px solid rgba(255,255,255,0.22); padding-left: 16px; }
.hero-stats strong { display: block; font-family: var(--font-display); font-size: 1.15rem; color: #fff; }
.hero-stats span { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.04em; color: rgba(255,255,255,0.72); text-transform: uppercase; }

/* ===== Sections ===== */
section { padding: 110px 0; position: relative; }
.section-tight { padding: 80px 0; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); color: var(--navy-950); }
.bg-paper { background: var(--paper-50); }
.bg-navy { background: var(--navy-950); color: #fff; position: relative; overflow: hidden; }
.bg-navy p { color: rgba(255,255,255,0.65); }
.bg-navy h2, .bg-navy h3 { color: #fff; }
.bg-navy::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(900px 500px at 90% 0%, rgba(15,184,174,0.16), transparent 60%);
  pointer-events: none;
}

.divider-cut {
  position: absolute; left: 0; right: 0; top: -1px; height: 64px;
  background: var(--paper-0);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

/* ===== Cards / grids ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2.cards, .grid-3.cards { gap: 2px; background: var(--border); align-items: stretch; }

.card {
  background: #fff;
  padding: 44px 36px;
  position: relative;
  transition: background 0.2s ease;
}
.card:hover { background: var(--paper-50); }
.card .idx-ghost {
  position: absolute; top: 20px; right: 28px;
  font-family: var(--font-display);
  font-size: 4.4rem;
  font-weight: 700;
  color: var(--paper-100);
  line-height: 1;
  z-index: 0;
}
.card .icon {
  width: 50px; height: 50px;
  border: 1.5px solid var(--red-500);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
  position: relative; z-index: 1;
}
.card .icon svg { width: 24px; height: 24px; stroke: var(--navy-800); }
.card h3 { font-size: 1.4rem; color: var(--navy-950); position: relative; z-index: 1; }
.card > p { position: relative; z-index: 1; }
.card ul { margin: 18px 0 0; padding: 0; list-style: none; position: relative; z-index: 1; }
.card ul li {
  padding: 10px 0 10px 24px;
  position: relative;
  font-size: 0.94rem;
  color: var(--ink-600);
  border-top: 1px solid var(--paper-100);
}
.card ul li:first-child { border-top: none; }
.card ul li::before {
  content: "—";
  position: absolute; left: 0; top: 9px;
  color: var(--red-500);
  font-weight: 700;
}
.card .btn { margin-top: 26px; }

.pillar { padding: 8px; position: relative; }
.pillar .num {
  font-family: var(--font-mono);
  color: var(--blue-400);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 16px;
}
.pillar h3 { font-size: 1.2rem; color: #fff; }
.pillar p { font-size: 0.94rem; }

/* ===== Map section ===== */
.map-wrap {
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
#reach-map { height: 480px; width: 100%; background: var(--paper-100); }
.leaflet-popup-content-wrapper { border-radius: 2px; }
.map-legend {
  display: flex; flex-wrap: wrap; gap: 26px;
  margin-top: 24px;
  font-family: var(--font-mono);
}
.map-legend .item { display: flex; align-items: center; gap: 10px; font-size: 0.82rem; color: var(--ink-600); font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }
.map-legend .swatch { width: 10px; height: 10px; }

/* ===== CTA band ===== */
.cta-band {
  background: var(--navy-950);
  color: #fff;
  padding: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--navy-700);
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(700px 300px at 15% 0%, rgba(15,184,174,0.2), transparent 60%);
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { color: #fff; margin-bottom: 8px; font-size: 1.9rem; }
.cta-band p { color: rgba(255,255,255,0.7); margin: 0; max-width: 460px; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--border); align-items: stretch; }
.contact-grid > div { background: #fff; padding: 36px; }
.contact-card {
  padding: 0;
}
.contact-row { display: flex; gap: 16px; padding: 18px 0; border-top: 1px solid var(--paper-100); }
.contact-row:first-child { border-top: none; padding-top: 0; }
.contact-row .ico {
  width: 44px; height: 44px; flex-shrink: 0;
  border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
}
.contact-row .ico svg { width: 20px; height: 20px; stroke: var(--navy-800); }
.contact-row h4 { margin: 0 0 3px; font-family: var(--font-mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--navy-950); }
.contact-row a, .contact-row span { font-size: 0.96rem; color: var(--ink-600); }
.request-panel h3 { font-size: 1.5rem; color: var(--navy-950); }
.request-panel .value-list { margin: 22px 0 28px; }

/* ===== Footer ===== */
.site-footer { background: var(--navy-950); color: rgba(255,255,255,0.6); padding: 72px 0 28px; position: relative; overflow: hidden; }
.footer-ghost {
  position: absolute; bottom: -0.28em; left: 0; right: 0;
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(3rem, 13vw, 9rem);
  color: rgba(255,255,255,0.035);
  white-space: nowrap; text-align: center;
  letter-spacing: -0.02em;
  pointer-events: none;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 48px; position: relative; }
.footer-grid h4 { color: #fff; font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 18px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 11px; font-size: 0.92rem; }
.footer-grid a:hover { color: var(--blue-400); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 22px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  position: relative;
}

/* ===== Page hero (inner pages) ===== */
.page-hero {
  background: var(--navy-950);
  color: #fff;
  padding: 96px 0 64px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(800px 420px at 85% -10%, rgba(15,184,174,0.2), transparent 60%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2.1rem, 4vw, 3.2rem); color: #fff; }
.page-hero p { color: rgba(255,255,255,0.7); max-width: 620px; font-size: 1.08rem; }
.breadcrumb { font-family: var(--font-mono); font-size: 0.78rem; color: rgba(255,255,255,0.72); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.04em; }
.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: var(--blue-400); }

.service-block { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 64px 0; border-bottom: 1px solid var(--paper-100); }
.service-block:last-child { border-bottom: none; }
.service-block.reverse { direction: rtl; }
.service-block.reverse > * { direction: ltr; }
.service-block h2 { color: var(--navy-950); font-size: 2rem; }
.service-media {
  position: relative; overflow: hidden; aspect-ratio: 4/3;
}
.service-media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.7) contrast(1.05); }
.service-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(8,26,44,0.35), rgba(8,26,44,0.05));
}
.tag-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 20px 0; }
.tag {
  border: 1px solid var(--border); color: var(--navy-800); font-family: var(--font-mono); font-size: 0.76rem; font-weight: 600;
  padding: 7px 13px; text-transform: uppercase; letter-spacing: 0.03em;
}

.value-list { list-style: none; margin: 0; padding: 0; }
.value-list li {
  display: flex; gap: 16px; padding: 18px 0; border-top: 1px solid var(--paper-100);
}
.value-list li:first-child { border-top: none; }
.value-list .n {
  font-family: var(--font-mono); font-weight: 600; color: var(--blue-500); font-size: 0.95rem; flex-shrink: 0; width: 30px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero { min-height: auto; }
  .hero-content { padding: 130px 0 56px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .grid-2, .grid-3, .contact-grid { grid-template-columns: 1fr; }
  .service-block { grid-template-columns: 1fr; }
  .service-block.reverse { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; text-align: center; padding: 44px 28px; }
  section { padding: 72px 0; }
}
@media (max-width: 760px) {
  .nav-links, .nav-cta .btn-outline-desktop { display: none; }
  .nav-toggle { display: flex; }
  body.nav-open .nav-links {
    display: flex; position: fixed; top: 71px; left: 0; right: 0; bottom: 0; background: var(--navy-950);
    flex-direction: column; padding: 20px 24px; gap: 4px; z-index: 99; overflow-y: auto;
  }
  body.nav-open .nav-links a { display: block; padding: 14px; font-size: 1.05rem; }
  body.nav-open .nav-links a::after { display: none; }
}

/* ===== Motion ===== */
@media (prefers-reduced-motion: no-preference) {
  .hero-bg {
    animation: kenburns 22s ease-in-out infinite alternate;
  }
  @keyframes kenburns {
    0%   { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.09) translate(-1%, -1.5%); }
  }

  .hero-in {
    opacity: 0;
    animation: heroUp 0.9s cubic-bezier(.16,.84,.44,1) forwards;
  }
  @keyframes heroUp {
    from { opacity: 0; transform: translateY(26px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(.16,.84,.44,1), transform 0.7s cubic-bezier(.16,.84,.44,1);
  }
  .reveal.in { opacity: 1; transform: translateY(0); }

  .eyebrow .idx { animation: pulseGlow 2.4s ease-in-out infinite; }
  @keyframes pulseGlow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.45; }
  }

  .btn-primary { position: relative; overflow: hidden; }
  .btn-primary::before {
    content: "";
    position: absolute; top: 0; bottom: 0; left: -60%; width: 40%;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,0.55), transparent);
    transform: skewX(-20deg);
    transition: left 0.6s ease;
  }
  .btn-primary:hover::before { left: 130%; }

  .map-legend .swatch { transition: transform 0.25s ease, box-shadow 0.25s ease; }
  .map-legend .item:hover .swatch { transform: scale(1.4); box-shadow: 0 0 0 5px currentColor; opacity: 0.9; }

  .card .idx-ghost { transition: transform 0.4s ease, color 0.4s ease; }
  .card:hover .idx-ghost { transform: translateY(-6px); color: var(--paper-100); }
  .card .icon { transition: transform 0.35s ease, background 0.35s ease; }
  .card:hover .icon { transform: rotate(-6deg) scale(1.05); }

  .footer-ghost { transition: transform 20s linear; }

  .brand .mark img { transform-origin: center; }
  .brand:hover .mark img { animation: shipBob 1.1s ease-in-out infinite; }
  @keyframes shipBob {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-1.5px) rotate(-2deg); }
    75% { transform: translateY(1.5px) rotate(2deg); }
  }

  .route-line { animation: dashFlow 1.2s linear infinite; }
  @keyframes dashFlow { to { stroke-dashoffset: -22; } }

  .marker-pulse { animation: mapPulse 2.6s ease-out infinite; transform-box: fill-box; transform-origin: center; }
  @keyframes mapPulse {
    0%   { transform: scale(1); opacity: 0.55; }
    100% { transform: scale(2.6); opacity: 0; }
  }
}
@media (prefers-reduced-motion: reduce) {
  .reveal, .hero-in { opacity: 1 !important; transform: none !important; }
}

/* Scroll progress bar */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--red-500), var(--blue-400));
  transform: scaleX(0); transform-origin: left;
  z-index: 200;
  transition: transform 0.1s linear;
}

/* Route ticker (marquee) */
.ticker {
  background: var(--navy-950);
  color: rgba(255,255,255,0.7);
  overflow: hidden;
  white-space: nowrap;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.ticker-track {
  display: inline-flex;
  align-items: center;
  animation: tickerScroll 26s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-track span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 28px;
  display: inline-flex;
  align-items: center;
  gap: 28px;
}
.ticker-track span::after { content: "◆"; color: var(--red-500); font-size: 0.6rem; margin-left: 28px; }
@keyframes tickerScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
}

/* Service image tilt */
.service-media {
  perspective: 900px;
}
.service-media img {
  transition: transform 0.5s cubic-bezier(.16,.84,.44,1), filter 0.5s ease;
}
@media (hover: hover) {
  .service-media:hover img {
    transform: scale(1.04) rotateX(2deg) rotateY(-2deg);
    filter: saturate(0.9) contrast(1.1);
  }
}