:root {
  --charcoal: #232a31;
  --charcoal-dark: #171d23;
  --charcoal-deep: #10151a;
  --amber: #d0952e;
  --amber-dark: #b37d24;
  --light-grey: #f4f5f6;
  --line: #e6e8ea;
  --body-text: #545d67;
  --heading: #232a31;
  --white: #ffffff;
  --shadow-sm: 0 2px 10px rgba(35, 42, 49, 0.06);
  --shadow-md: 0 10px 28px rgba(35, 42, 49, 0.10);
  --radius: 12px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", "Segoe UI", system-ui, Arial, sans-serif;
  color: var(--body-text);
  background: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: "Poppins", "Segoe UI", system-ui, Arial, sans-serif;
  color: var(--heading);
  font-weight: 600;
}

img { max-width: 100%; }

a { text-decoration: none; transition: color 0.2s ease; }

section { position: relative; }

.section {
  padding: 88px 0;
}

.section-light { background: var(--light-grey); }

.section-header {
  max-width: 760px;
  margin: 0 auto 52px;
  text-align: center;
}

.section-eyebrow {
  display: inline-block;
  font-family: "Poppins", sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-divider {
  width: 64px;
  height: 3px;
  border-radius: 3px;
  background: var(--amber);
  margin: 0 auto 20px;
}

.section-header .section-lead {
  margin: 0;
  font-size: 1.05rem;
}

/* ============ Buttons ============ */
.btn-amber {
  background: var(--amber);
  color: var(--white);
  border: 2px solid var(--amber);
  padding: 12px 28px;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.25s ease;
  display: inline-block;
}

.btn-amber:hover {
  background: var(--amber-dark);
  border-color: var(--amber-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.75);
  padding: 12px 28px;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.25s ease;
  display: inline-block;
}

.btn-outline-light:hover {
  background: var(--white);
  color: var(--charcoal);
}

.btn-outline-dark {
  background: transparent;
  color: var(--charcoal);
  border: 2px solid var(--charcoal);
  padding: 12px 28px;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.25s ease;
  display: inline-block;
}

.btn-outline-dark:hover {
  background: var(--charcoal);
  color: var(--white);
}

/* ============ Header / Navbar ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.25s ease;
}

.site-header.scrolled { box-shadow: var(--shadow-md); }

.navbar { padding: 14px 0; }

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--heading);
}

.brand-logo-img {
  height: 48px;
  width: auto;
  flex-shrink: 0;
  object-fit: contain;
}

@media (max-width: 575.98px) {
  .brand-logo-img { height: 42px; }
}

.footer-logo-chip {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  box-shadow: var(--shadow-sm);
}

.footer-logo-chip img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text { line-height: 1.15; }

.brand-name {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--heading);
  letter-spacing: 0.2px;
}

.brand-tag {
  font-size: 0.7rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--amber);
  font-weight: 600;
}

.navbar .nav-link {
  color: var(--charcoal);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 14px !important;
  position: relative;
}

.navbar .nav-link:hover { color: var(--amber-dark); }

.navbar .nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--amber);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.navbar .nav-link:hover::after { transform: scaleX(1); }

.navbar-toggler {
  border: 1px solid var(--line);
  padding: 6px 10px;
  color: var(--charcoal);
}

.navbar-toggler:focus { box-shadow: none; }

.nav-cta { white-space: nowrap; }

@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--white);
    padding: 16px 20px;
    margin-top: 12px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--line);
  }
  .nav-cta { margin-top: 8px; display: inline-block; }
}

/* ============ Hero ============ */
.hero {
  min-height: 100vh;
  min-height: 92svh;
  display: flex;
  align-items: center;
  padding: 140px 0 90px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(16, 21, 26, 0.88) 0%, rgba(16, 21, 26, 0.62) 55%, rgba(16, 21, 26, 0.35) 100%);
}

.hero-content { position: relative; z-index: 2; max-width: 720px; }

.hero-company {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.85);
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
  padding: 8px 16px;
  border-radius: 40px;
  margin-bottom: 22px;
}

.hero-company .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  flex-shrink: 0;
}

.hero-title {
  color: var(--white);
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-title span { color: var(--amber); }

.hero-desc {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.12rem;
  line-height: 1.75;
  margin-bottom: 32px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 48px;
}

.stat-chip {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  padding: 12px 20px;
  color: var(--white);
  backdrop-filter: blur(4px);
}

.stat-chip strong {
  font-family: "Poppins", sans-serif;
  display: block;
  font-size: 1.05rem;
  color: var(--amber);
}

.stat-chip span { font-size: 0.8rem; letter-spacing: 0.6px; }

.scroll-hint {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.scroll-hint::after {
  content: "";
  display: block;
  width: 1px;
  height: 34px;
  background: rgba(255, 255, 255, 0.55);
  margin: 8px auto 0;
  animation: pulseLine 1.8s ease-in-out infinite;
}

@keyframes pulseLine {
  0%, 100% { transform: scaleY(0.4); transform-origin: top; opacity: 0.6; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ============ About ============ */
.about-media { position: relative; }

.about-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  object-fit: cover;
}

.about-badge {
  position: absolute;
  right: -14px;
  bottom: -22px;
  background: var(--charcoal);
  color: var(--white);
  border-radius: 12px;
  padding: 18px 22px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 3px solid var(--amber);
}

.about-badge strong {
  font-family: "Poppins", sans-serif;
  font-size: 1.6rem;
  color: var(--amber);
  line-height: 1;
  display: block;
}

.about-badge span { font-size: 0.82rem; color: rgba(255, 255, 255, 0.85); }

.about-content h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }

.about-content .lead { font-size: 1.08rem; color: var(--body-text); }

.about-points {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
}

.about-points li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.about-points .tick {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(208, 149, 46, 0.14);
  color: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  margin-top: 2px;
}

.about-points li p { margin: 0; }

/* ============ Cards (Coal Supply) ============ */
.supply-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.supply-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.supply-card-media {
  height: 210px;
  overflow: hidden;
  position: relative;
}

.supply-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.supply-card:hover .supply-card-media img { transform: scale(1.07); }

.supply-card-icon {
  position: absolute;
  left: 20px;
  bottom: -26px;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: var(--amber);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: var(--shadow-md);
  border: 3px solid var(--white);
}

.supply-card-body { padding: 44px 24px 26px; }

.supply-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.supply-card-body p { margin: 0; font-size: 0.95rem; }

/* ============ Why Choose Us ============ */
.feature-box {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-box:hover {
  transform: translateY(-5px);
  border-color: var(--amber);
}

.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--charcoal), #39434c);
  color: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}

.feature-box h3 { font-size: 1.1rem; margin-bottom: 10px; }

.feature-box p { margin: 0; font-size: 0.95rem; }

/* ============ Industry Strip ============ */
.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.industry-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  height: 260px;
  box-shadow: var(--shadow-sm);
}

.industry-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.industry-item:hover img { transform: scale(1.08); }

.industry-item figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 34px 18px 16px;
  background: linear-gradient(to top, rgba(16, 21, 26, 0.85), transparent);
  color: var(--white);
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 0.98rem;
}

@media (max-width: 991.98px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 575.98px) {
  .industry-grid { grid-template-columns: 1fr; }
}

/* ============ Commitment band ============ */
.commitment {
  background: linear-gradient(120deg, var(--charcoal-dark) 0%, var(--charcoal) 60%, #2c353e 100%);
  color: rgba(255, 255, 255, 0.9);
  text-align: center;
  padding: 84px 0;
}

.commitment h2 {
  color: var(--white);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  margin-bottom: 20px;
}

.commitment p {
  max-width: 760px;
  margin: 0 auto 30px;
  font-size: 1.08rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

.commitment .section-divider { margin-bottom: 26px; }

/* ============ Contact ============ */
.contact-info-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.contact-info-card:hover { border-color: var(--amber); transform: translateY(-3px); }

.contact-info-card .ci-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(208, 149, 46, 0.14);
  color: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.contact-info-card h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--body-text);
  margin-bottom: 4px;
}

.contact-info-card p, .contact-info-card a {
  margin: 0;
  font-size: 1rem;
  color: var(--heading);
  font-weight: 500;
  word-break: break-word;
}

.contact-info-card a:hover { color: var(--amber-dark); }

.contact-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 36px;
}

.contact-panel h3 { margin-bottom: 6px; }

.form-label { font-weight: 600; color: var(--heading); font-size: 0.92rem; }

.form-control {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.95rem;
  background: var(--light-grey);
}

.form-control:focus {
  background: var(--white);
  border-color: var(--amber);
  box-shadow: 0 0 0 0.2rem rgba(208, 149, 46, 0.15);
}

textarea.form-control { resize: vertical; min-height: 120px; }

.form-note { font-size: 0.85rem; color: var(--body-text); margin-top: 10px; }

.form-status { margin-bottom: 18px; }

.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.alert-success-custom {
  background: #e9f7ef;
  border: 1px solid #bfe6cd;
  color: #1d6a41;
  border-radius: 10px;
  padding: 14px 18px;
  font-weight: 500;
}

.alert-info-custom {
  background: #fdf3e0;
  border: 1px solid #f0d9a8;
  color: #8a5a12;
  border-radius: 10px;
  padding: 14px 18px;
  font-weight: 500;
}

.alert-error-custom {
  background: #fdeeee;
  border: 1px solid #f2c4c4;
  color: #8f2f2f;
  border-radius: 10px;
  padding: 14px 18px;
  font-weight: 500;
}

.whatsapp-link { color: #1d9c55; }

/* ============ Footer ============ */
.site-footer {
  background: var(--charcoal-deep);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
}

.footer-brand { margin-bottom: 18px; }

.footer-brand .brand-name { color: var(--white); }

.footer-tagline { font-size: 0.95rem; color: rgba(255, 255, 255, 0.65); }

.footer-title {
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.footer-links { list-style: none; padding: 0; margin: 0; }

.footer-links li { margin-bottom: 10px; }

.footer-links a, .footer-contact a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a i, .footer-contact a i { color: var(--amber); width: 16px; }

.footer-links a:hover, .footer-contact a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 44px;
  padding: 20px 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  text-align: center;
}

.footer-reg {
  margin-top: 6px;
  font-size: 0.84rem;
  letter-spacing: 0.4px;
}

/* ============ Scroll reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in-view { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============ Scroll to top ============ */
.scroll-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--charcoal);
  color: var(--amber);
  border: none;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}

.scroll-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

.scroll-top:hover { background: var(--amber); color: var(--white); }

/* ============ Helpers ============ */
.section-heading-left .section-divider { margin-left: 0; }