/* =========================================================
   BPCL Petroleum Trading — static site stylesheet
   NOTE: best-effort structural/visual reconstruction from the live
   page's content — this environment could not access the site's
   actual CSS file. Compare against the live site once real images
   are in place and adjust colors/spacing/fonts here as needed.
   ========================================================= */

:root {
  --color-primary: #0a2f4d;      /* deep marine blue */
  --color-primary-dark: #061d31;
  --color-accent: #c8922a;       /* fuel-gold accent */
  --color-text: #333333;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fa;
  --color-border: #e5e7eb;
  --container-width: 1200px;
  --font-body: "Segoe UI", Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-accent); }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3, h4 {
  color: var(--color-primary-dark);
  line-height: 1.25;
  margin: 0 0 16px;
}
h1 { font-size: 2.3rem; }
h2 { font-size: 1.8rem; text-align: center; }
h3 { font-size: 1.2rem; }
p { margin: 0 0 16px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--color-primary); color: #fff;
  padding: 10px 16px; z-index: 1000;
}
.skip-link:focus { left: 10px; top: 10px; }

/* ---------------- Header / nav ---------------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 100;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
}
.site-logo img { max-height: 60px; width: auto; }

.main-nav ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; }
.main-nav a {
  color: var(--color-primary-dark); font-weight: 600; font-size: 0.95rem;
  padding: 6px 0; border-bottom: 2px solid transparent;
}
.main-nav a:hover { color: var(--color-accent); border-bottom-color: var(--color-accent); }

.menu-toggle {
  display: none; background: none; border: 2px solid var(--color-primary);
  border-radius: 4px; padding: 8px 10px; font-size: 1.1rem; cursor: pointer;
}
@media (max-width: 820px) {
  .menu-toggle { display: block; }
  .main-nav { display: none; width: 100%; border-top: 1px solid var(--color-border); }
  .main-nav.is-open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav a { display: block; padding: 12px 4px; border-bottom: 1px solid var(--color-border); }
  .site-header .container { flex-wrap: wrap; }
}

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-align: center;
  overflow: hidden;
  background: var(--color-primary-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  z-index: 1;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4,20,31,0.35) 0%, rgba(4,20,31,0.55) 100%);
  z-index: 1;
}
.hero-text { position: relative; z-index: 2; padding: 40px 0; }
.hero .eyebrow { text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-accent); font-weight: 700; font-size: 0.85rem; }
.hero h1 { color: #fff; margin: 10px 0 26px; }
@media (max-width: 640px) {
  .hero { min-height: 380px; }
}

/* ---------------- Sections ---------------- */
.section { padding: 60px 0; }
.section.alt { background: var(--color-bg-alt); }
.section-intro { max-width: 780px; margin: 0 auto 36px; text-align: center; color: var(--color-text-light); }

/* Mission/Vision/Why-BPCL/Team — 2x2 grid, roomier, badge-style icons */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(300px, 1fr));
  gap: 32px 40px;
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 720px) {
  .icon-grid { grid-template-columns: 1fr; }
}
.icon-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 34px 30px;
  text-align: left;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  box-shadow: 0 2px 10px rgba(6,29,49,0.04);
}
.icon-card .icon-badge {
  flex: 0 0 auto;
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
}
.icon-card .icon-badge img { width: 34px; height: 34px; }
.icon-card h3 { margin-bottom: 8px; }
.icon-card p { color: var(--color-text-light); margin: 0; font-size: 0.95rem; }

/* Services */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}
.service-card { position: relative; border-radius: 8px; overflow: hidden; }
.service-card img { width: 100%; height: 260px; object-fit: cover; }
.service-card .service-label {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: linear-gradient(0deg, rgba(6,29,49,0.9), rgba(6,29,49,0));
  color: #fff; padding: 24px 20px 16px; font-size: 1.15rem; font-weight: 700;
}

/* Forms */
.contact-form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 28px;
  display: grid;
  gap: 16px;
  max-width: 640px;
  margin: 0 auto;
}
.contact-form label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--color-border);
  border-radius: 4px; font-family: inherit; font-size: 0.95rem;
}
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.button {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 13px 30px;
  border-radius: 4px;
  font-weight: 600;
  border: none;
  cursor: pointer;
}
.button:hover { background: #fff; color: var(--color-primary-dark); }

/* Contact info + map */
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  text-align: center;
  margin-bottom: 40px;
}
.contact-info-grid h3 { color: var(--color-accent); font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.05em; }
.map-wrap iframe { width: 100%; height: 360px; border: 0; border-radius: 8px; display: block; }

.social-links { display: flex; gap: 10px; justify-content: center; margin-top: 20px; }
.social-links a {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
}
.social-links a:hover { background: var(--color-accent); border-color: var(--color-accent); }
.social-links svg { width: 16px; height: 16px; fill: var(--color-primary); }
.social-links a:hover svg { fill: #fff; }

/* Footer */
.site-footer {
  background: var(--color-primary-dark);
  color: #cdd9e8;
  padding: 20px 0;
  text-align: center;
  font-size: 0.9rem;
}
.site-footer a { color: #fff; text-decoration: underline; }