/* ==========================================================================
   Northwind Petroleums — Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--nw-container);
  margin-inline: auto;
  padding-inline: var(--nw-space-md);
}
.container--narrow { max-width: var(--nw-container-narrow); }

section { position: relative; }

.section-pad { padding-block: var(--nw-space-2xl); }
.section-pad--sm { padding-block: var(--nw-space-xl); }

.section-dark {
  background: linear-gradient(180deg, var(--nw-navy-900), var(--nw-navy-950));
  color: var(--nw-text-on-dark);
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--nw-fog-100); }
.section-dark p { color: var(--nw-text-on-dark-muted); }

.section-alt { background: var(--nw-bg-alt); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--nw-fs-eyebrow);
  letter-spacing: var(--nw-ls-wider);
  text-transform: uppercase;
  color: var(--nw-gold-500);
  font-weight: 600;
  margin-bottom: var(--nw-space-sm);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--nw-gold-500);
}

.section-head {
  max-width: 760px;
  margin-bottom: var(--nw-space-lg);
}
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head--center .eyebrow::before { display: none; }

/* ---- Grid helpers ---- */
.grid {
  display: grid;
  gap: var(--nw-space-md);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 860px) {
  .grid-2, .grid-3, .grid-5 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); gap: var(--nw-space-sm); }
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--nw-space-xl);
  align-items: center;
}
.split--reverse { grid-template-columns: 1fr 1.1fr; }
.split--reverse > *:first-child { order: 2; }

@media (max-width: 960px) {
  .split, .split--reverse { grid-template-columns: 1fr; gap: var(--nw-space-lg); }
  .split--reverse > *:first-child { order: 0; }
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nw-header-h);
  z-index: 500;
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--nw-dur-med) var(--nw-ease), box-shadow var(--nw-dur-med) var(--nw-ease), height var(--nw-dur-med) var(--nw-ease);
}
.site-header.is-scrolled {
  background: rgba(10, 26, 43, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 24px rgba(6, 13, 22, 0.3);
  height: 72px;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand img, .brand svg { height: 40px; width: auto; }

.nav-main {
  display: flex;
  align-items: center;
  gap: var(--nw-space-lg);
}
.nav-links { display: flex; gap: var(--nw-space-md); align-items: center; }
.nav-links a {
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  color: var(--nw-fog-100);
  opacity: 0.85;
  position: relative;
  padding-block: 0.4rem;
  transition: opacity var(--nw-dur-fast) var(--nw-ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--nw-gold-500);
  transition: width var(--nw-dur-med) var(--nw-ease);
}
.nav-links a:hover, .nav-links a.active { opacity: 1; }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--nw-fog-100);
  padding: 0.5rem;
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 920px) {
  .nav-toggle { display: inline-flex; }
  .nav-main { position: fixed; inset: 0; top: 0; }
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(340px, 86vw);
    background: var(--nw-navy-950);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 6.5rem var(--nw-space-md) var(--nw-space-md);
    gap: var(--nw-space-md);
    transform: translateX(100%);
    transition: transform var(--nw-dur-med) var(--nw-ease);
    box-shadow: -20px 0 50px rgba(0,0,0,0.4);
  }
  body.nav-open .nav-links { transform: translateX(0); }
  .nav-links a { font-size: 1.05rem; }
  .nav-cta { margin-top: var(--nw-space-sm); }
  body.nav-open { overflow: hidden; }
  .nav-scrim {
    display: none;
    position: fixed; inset: 0;
    background: rgba(6,13,22,0.6);
    z-index: 400;
  }
  body.nav-open .nav-scrim { display: block; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--nw-fog-100);
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media video, .hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero-media::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(6,13,22,0.55) 0%, rgba(6,13,22,0.35) 35%, rgba(6,13,22,0.75) 78%, rgba(6,13,22,0.95) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-bottom: var(--nw-space-2xl);
  padding-top: calc(var(--nw-header-h) + var(--nw-space-xl));
  width: 100%;
}
.hero-content .eyebrow { color: var(--nw-gold-400); }
.hero h1 {
  color: var(--nw-fog-100);
  max-width: 920px;
}
.hero-lead {
  max-width: 620px;
  font-size: var(--nw-fs-lead);
  color: var(--nw-steel-300);
  margin-bottom: var(--nw-space-lg);
}
.hero-actions { display: flex; gap: var(--nw-space-sm); flex-wrap: wrap; margin-bottom: var(--nw-space-xl); }

.hero-stats {
  display: flex;
  gap: var(--nw-space-xl);
  flex-wrap: wrap;
  border-top: 1px solid var(--nw-border-dark);
  padding-top: var(--nw-space-md);
}
.hero-stat .num {
  font-family: var(--nw-font-display);
  font-size: 2.1rem;
  color: var(--nw-gold-400);
  display: block;
  line-height: 1;
  margin-bottom: 0.35rem;
}
.hero-stat .label {
  font-size: 0.78rem;
  letter-spacing: var(--nw-ls-wide);
  text-transform: uppercase;
  color: var(--nw-steel-300);
}
.scroll-cue {
  position: absolute;
  bottom: var(--nw-space-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  letter-spacing: var(--nw-ls-wide);
  text-transform: uppercase;
  color: var(--nw-steel-300);
  opacity: 0.8;
}
.scroll-cue .line {
  width: 1px; height: 36px;
  background: linear-gradient(var(--nw-gold-500), transparent);
  animation: scrollpulse 2.2s var(--nw-ease) infinite;
}
@keyframes scrollpulse {
  0% { transform: scaleY(0.2); transform-origin: top; opacity: 0.4; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(0.2); transform-origin: bottom; opacity: 0.4; }
}

/* Page header (interior pages, no video) */
.page-header {
  position: relative;
  padding-top: calc(var(--nw-header-h) + var(--nw-space-xl));
  padding-bottom: var(--nw-space-xl);
  background: linear-gradient(180deg, var(--nw-navy-900), var(--nw-navy-950));
  color: var(--nw-fog-100);
  overflow: hidden;
}
.page-header .bg-image {
  position: absolute; inset: 0;
  opacity: 0.22;
}
.page-header .bg-image img { width: 100%; height: 100%; object-fit: cover; }
.page-header::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,13,22,0.5), rgba(6,13,22,0.96));
}
.page-header .container { position: relative; z-index: 1; }
.page-header h1 { color: var(--nw-fog-100); }
.breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--nw-steel-300);
  margin-bottom: var(--nw-space-sm);
  letter-spacing: 0.03em;
}
.breadcrumb a { color: var(--nw-steel-300); }
.breadcrumb a:hover { color: var(--nw-gold-400); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--nw-navy-950);
  color: var(--nw-steel-300);
  padding-top: var(--nw-space-xl);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: var(--nw-space-lg);
  padding-bottom: var(--nw-space-xl);
  border-bottom: 1px solid var(--nw-border-dark);
}
.footer-brand img { height: 38px; margin-bottom: var(--nw-space-sm); }
.footer-brand p { max-width: 320px; }
.footer-col h5 {
  font-family: var(--nw-font-sans);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: var(--nw-ls-wide);
  color: var(--nw-gold-400);
  margin-bottom: var(--nw-space-sm);
  font-weight: 600;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a { color: var(--nw-steel-300); font-size: 0.92rem; transition: color var(--nw-dur-fast); }
.footer-col a:hover { color: var(--nw-gold-400); }
.footer-contact li { display: flex; gap: 0.6rem; align-items: flex-start; font-size: 0.92rem; }
.footer-contact svg { flex-shrink: 0; margin-top: 0.2rem; color: var(--nw-gold-500); width: 16px; height: 16px; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--nw-space-sm);
  padding-block: var(--nw-space-md);
  font-size: 0.82rem;
  color: #5a7085;
  flex-wrap: wrap;
}
.footer-legal-links { display: flex; gap: var(--nw-space-sm); flex-wrap: wrap; }
.footer-legal-links a { color: #5a7085; }
.footer-legal-links a:hover { color: var(--nw-gold-400); }

.footer-compliance-note {
  font-size: 0.78rem;
  color: #46596b;
  max-width: var(--nw-container);
  margin: 0 auto var(--nw-space-md);
  padding: 0 var(--nw-space-md);
  line-height: 1.6;
}

@media (max-width: 960px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}