:root {
  --bg: #03060a;
  --bg-soft: #07111a;
  --panel: rgba(9, 19, 29, 0.78);
  --panel-strong: rgba(8, 16, 25, 0.92);
  --line: rgba(119, 222, 255, 0.18);
  --line-strong: rgba(119, 222, 255, 0.34);
  --text: #eef8ff;
  --muted: #a8bac8;
  --blue: #22cfff;
  --cyan: #67f6ff;
  --green: #4dffc1;
  --yellow: #ffe066;
  --orange: #ff9338;
  --red: #ff425f;
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow: 0 26px 90px rgba(0, 0, 0, 0.48);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(34, 207, 255, 0.14), transparent 32rem),
    radial-gradient(circle at 80% 18%, rgba(255, 147, 56, 0.10), transparent 30rem),
    radial-gradient(circle at 55% 70%, rgba(77, 255, 193, 0.07), transparent 34rem),
    linear-gradient(180deg, #020407 0%, #07111a 48%, #020407 100%);
  line-height: 1.55;
}

body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }

.container {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: linear-gradient(180deg, rgba(2, 6, 10, 0.92), rgba(2, 6, 10, 0.35));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  transition: background 220ms ease, padding 220ms ease;
}

.site-header.scrolled {
  padding-block: 12px;
  background: rgba(2, 7, 12, 0.94);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  position: relative;
  background: conic-gradient(from 210deg, var(--red), var(--orange), var(--yellow), var(--green), var(--cyan), var(--blue), var(--red));
  box-shadow: 0 0 34px rgba(34, 207, 255, 0.28);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 999px;
  background: #050a10;
}

.brand-text { font-size: 1rem; }

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  color: rgba(238, 248, 255, 0.78);
  font-size: 0.92rem;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: right;
  background: linear-gradient(90deg, var(--blue), var(--green), var(--yellow));
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a.active { color: #fff; }
.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}

.hero,
.product-hero {
  position: relative;
  min-height: 90vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.product-hero { min-height: 78vh; }

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-position: center;
  background-size: cover;
  transform: scale(1.03);
}

.hero-home { background-image: url("assets/ventilation-workers.jpg"); }
.hero-ventilation { background-image: url("assets/ventilation-hero.jpg"); }
.hero-dewatering { background-image: url("assets/dewatering-hero.jpg"); }
.hero-paste,
.hero-automation {
  background-image:
    radial-gradient(circle at 70% 30%, rgba(255, 224, 102, 0.18), transparent 22rem),
    radial-gradient(circle at 28% 38%, rgba(34, 207, 255, 0.20), transparent 30rem),
    linear-gradient(135deg, rgba(9, 28, 44, 0.98), rgba(3, 6, 10, 0.98));
}

.hero-paste::before,
.hero-automation::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(105deg, transparent 0 22%, rgba(34,207,255,.18) 22.4% 22.8%, transparent 23.2% 100%),
    linear-gradient(125deg, transparent 0 38%, rgba(77,255,193,.14) 38.2% 38.5%, transparent 38.9% 100%),
    linear-gradient(145deg, transparent 0 56%, rgba(255,147,56,.18) 56.1% 56.4%, transparent 56.8% 100%);
  opacity: .85;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(3, 5, 8, 0.94) 0%, rgba(3, 5, 8, 0.72) 42%, rgba(3, 5, 8, 0.18) 76%),
    linear-gradient(0deg, rgba(3, 5, 8, 0.97) 0%, rgba(3, 5, 8, 0.12) 45%, rgba(3, 5, 8, 0.55) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr .74fr;
  gap: 48px;
  align-items: end;
  padding-top: 96px;
}

.hero-content { max-width: 760px; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 22px;
  font-size: clamp(3rem, 8vw, 7.2rem);
  line-height: 0.92;
  letter-spacing: -0.08em;
}
h2 {
  margin-bottom: 18px;
  font-size: clamp(2.05rem, 4vw, 4.1rem);
  line-height: 1;
  letter-spacing: -0.06em;
}
h3 {
  margin-bottom: 13px;
  font-size: clamp(1.28rem, 2vw, 2.05rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.hero-copy {
  max-width: 660px;
  color: rgba(238, 248, 255, 0.83);
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 999px;
  font-weight: 900;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, opacity 180ms ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: #031016;
  background: linear-gradient(90deg, var(--blue), var(--green), var(--yellow));
  box-shadow: 0 12px 38px rgba(34, 207, 255, 0.23);
}
.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
}

.hero-card {
  align-self: center;
  background: linear-gradient(180deg, rgba(7, 17, 26, 0.78), rgba(5, 9, 14, 0.92));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.stat {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.055);
  border: 1px solid rgba(255,255,255,.08);
}
.stat strong {
  display: block;
  margin-bottom: 4px;
  color: #fff;
  font-size: 1.1rem;
}
.stat span { color: var(--muted); font-size: .92rem; }

.section { padding: clamp(74px, 10vw, 132px) 0; }
.section-compact { padding: clamp(50px, 7vw, 90px) 0; }
.section-heading { margin-bottom: 40px; }
.split-heading {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 34px;
  align-items: end;
}
.split-heading > p,
.intro-grid > p,
.feature-copy p,
.cta-panel p,
.service-card p,
.panel-copy p,
.site-footer p,
.abstract-card p,
.faq-item p,
.process-card p {
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.service-card,
.process-card,
.abstract-card,
.image-card,
.tab-panel,
.cta-panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(10, 21, 32, 0.86), rgba(5, 9, 14, 0.86));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.service-card { min-height: 100%; }
.service-card img { width: 100%; height: 230px; object-fit: cover; }
.card-body { padding: 24px; }
.service-tag {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  color: #061014;
  background: linear-gradient(90deg, var(--blue), var(--green));
  font-weight: 900;
  font-size: .74rem;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.text-link {
  display: inline-flex;
  margin-top: 10px;
  color: var(--cyan);
  font-weight: 900;
}
.text-link::after { content: " →"; }

.abstract-card {
  padding: 28px;
  min-height: 230px;
  position: relative;
  isolation: isolate;
}
.abstract-card::after {
  content: "";
  position: absolute;
  inset: auto -22% -40% 20%;
  height: 150px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(34,207,255,.28), rgba(77,255,193,.2), rgba(255,224,102,.22));
  filter: blur(36px);
  z-index: -1;
}
.icon-chip {
  width: 46px;
  height: 46px;
  display: inline-grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 14px;
  color: #051014;
  font-weight: 1000;
  background: linear-gradient(135deg, var(--blue), var(--green), var(--yellow));
}

.feature-row {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 38px;
  align-items: center;
}
.feature-row.reverse { grid-template-columns: 1.05fr .95fr; }
.image-card { position: relative; }
.image-card img { width: 100%; height: 460px; object-fit: cover; }
.image-caption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 16px;
  background: rgba(3, 7, 12, .74);
  backdrop-filter: blur(12px);
  color: rgba(238,248,255,.86);
  font-weight: 800;
}
.capability-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 28px;
}
.capability-pills span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.055);
  color: rgba(238,248,255,.86);
  font-weight: 800;
  font-size: .9rem;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.process-card { padding: 28px; }
.process-card .number {
  display: block;
  margin-bottom: 16px;
  color: var(--cyan);
  font-weight: 1000;
  letter-spacing: .12em;
}

.product-intro {
  padding-bottom: 0;
}
.intro-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 40px;
  align-items: start;
}
.intro-list {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.intro-list li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.045);
  color: rgba(238,248,255,.87);
}

.tabs-shell {
  margin-top: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(3, 8, 13, .62);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.tab-buttons {
  display: flex;
  gap: 8px;
  padding: 14px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.035);
}
.tab-buttons button {
  white-space: nowrap;
  border: 1px solid rgba(255,255,255,.10);
  color: rgba(238,248,255,.74);
  background: rgba(255,255,255,.055);
  border-radius: 999px;
  padding: 11px 15px;
  font-weight: 900;
  cursor: pointer;
}
.tab-buttons button.active {
  color: #041017;
  background: linear-gradient(90deg, var(--blue), var(--green), var(--yellow));
  border-color: transparent;
}
.tab-panel {
  display: none;
  grid-template-columns: .96fr 1.04fr;
  gap: 28px;
  padding: clamp(22px, 4vw, 38px);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}
.tab-panel.active { display: grid; }
.tab-panel[hidden] { display: none; }
.panel-copy { align-self: center; }
.panel-copy ul {
  margin: 22px 0 0;
  padding-left: 18px;
  color: rgba(238,248,255,.84);
}
.panel-copy li { margin-bottom: 10px; }
.panel-media img {
  width: 100%;
  height: 390px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
}
.panel-media .abstract-visual {
  min-height: 390px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 30% 32%, rgba(34,207,255,.28), transparent 16rem),
    radial-gradient(circle at 72% 62%, rgba(255,147,56,.23), transparent 14rem),
    repeating-linear-gradient(115deg, rgba(255,255,255,.05) 0 1px, transparent 1px 25px),
    linear-gradient(135deg, rgba(10,24,37,.94), rgba(3,6,10,.96));
  position: relative;
  overflow: hidden;
}
.panel-media .abstract-visual::after {
  content: "";
  position: absolute;
  inset: 18% -20% auto -10%;
  height: 130px;
  border-radius: 999px;
  border: 1px solid rgba(103,246,255,.46);
  background: linear-gradient(90deg, transparent, rgba(34,207,255,.24), rgba(77,255,193,.28), rgba(255,224,102,.18), transparent);
  transform: rotate(-12deg);
  filter: blur(.2px);
}

.faq-list { display: grid; gap: 14px; margin-top: 20px; }
.faq-item {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.05);
}
.faq-item strong { display:block; margin-bottom: 8px; }
.faq-item p { margin-bottom: 0; }

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(28px, 5vw, 54px);
  background:
    radial-gradient(circle at 18% 20%, rgba(34,207,255,.18), transparent 26rem),
    radial-gradient(circle at 88% 30%, rgba(255,224,102,.14), transparent 20rem),
    linear-gradient(135deg, rgba(10, 25, 39, 0.94), rgba(4, 8, 13, 0.94));
}
.cta-panel h2 { max-width: 760px; }
.cta-panel p { max-width: 720px; margin-bottom: 0; }

.site-footer {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 42px 0;
  background: rgba(2, 6, 10, .9);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr;
  gap: 30px;
}
.site-footer strong,
.site-footer a { display: block; margin-bottom: 9px; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--cyan); }
.footer-brand { margin-bottom: 14px; }

@media (max-width: 980px) {
  .hero-grid,
  .split-heading,
  .feature-row,
  .feature-row.reverse,
  .intro-grid,
  .tab-panel {
    grid-template-columns: 1fr;
  }
  .hero-card { max-width: 620px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed;
    top: 68px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 18px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 22px;
    background: rgba(3, 8, 13, .96);
    box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 10px; }
  .container { width: min(var(--max), calc(100% - 28px)); }
  .hero, .product-hero { min-height: 84vh; }
  .hero-grid { padding-top: 84px; }
  .hero-card { display: none; }
  .service-grid { grid-template-columns: 1fr; }
  .image-card img,
  .panel-media img,
  .panel-media .abstract-visual { height: 300px; min-height: 300px; }
  .cta-panel { align-items: flex-start; flex-direction: column; }
  .stat-grid { grid-template-columns: 1fr; }
  h1 { font-size: clamp(3rem, 16vw, 4.4rem); }
}

/* Mineflow final rebuild additions */
.hero-home { background-image: url("assets/automation-minewide.jpg"); }
.hero-backfill,
.hero-paste { background-image: url("assets/backfill-hero.jpg"); }
.hero-automation { background-image: url("assets/automation-minewide.jpg"); }
.hero-contact { background-image: url("assets/automation-underground-services.jpg"); }
.hero-backfill::before,
.hero-automation::before,
.hero-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(110deg, transparent 0 16%, rgba(34,207,255,.17) 16.1% 16.35%, transparent 16.6% 100%),
    linear-gradient(132deg, transparent 0 44%, rgba(77,255,193,.13) 44.1% 44.35%, transparent 44.7% 100%),
    linear-gradient(155deg, transparent 0 61%, rgba(255,147,56,.15) 61.1% 61.35%, transparent 61.7% 100%);
  opacity: .82;
}
.hero-paste::before { opacity: .35; }

.outcome-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.process-grid-five {
  grid-template-columns: repeat(5, 1fr);
}

.image-mosaic {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  grid-template-rows: repeat(2, minmax(260px, 1fr));
  gap: 18px;
}
.image-mosaic .image-card img { height: 100%; min-height: 260px; }
.image-card-large { grid-row: span 2; }
.automation-mosaic .image-card img { object-position: center; }

.contact-hero { min-height: 72vh; }

@media (max-width: 1120px) {
  .process-grid-five { grid-template-columns: repeat(2, 1fr); }
  .outcome-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 980px) {
  .image-mosaic { grid-template-columns: 1fr; grid-template-rows: auto; }
  .image-card-large { grid-row: auto; }
  .image-mosaic .image-card img { height: 360px; }
}

@media (max-width: 760px) {
  .process-grid-five,
  .outcome-grid { grid-template-columns: 1fr; }
  .image-mosaic .image-card img { height: 300px; }
}


/* Engineering spare parts additions */
.hero-spares { background-image: url("assets/spares-hero.jpg"); }
.hero-spares::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(112deg, transparent 0 18%, rgba(34,207,255,.16) 18.1% 18.4%, transparent 18.7% 100%),
    linear-gradient(138deg, transparent 0 48%, rgba(255,147,56,.17) 48.1% 48.45%, transparent 48.8% 100%),
    radial-gradient(circle at 78% 26%, rgba(255,224,102,.15), transparent 22rem);
  opacity: .78;
}
.service-grid { grid-template-columns: repeat(auto-fit, minmax(245px, 1fr)); }
.spares-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

/* Official MineFlow™ corporate identity */
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; line-height: 1; }
.brand-logo { display: block; width: clamp(215px, 21vw, 300px); height: auto; object-fit: contain; }
.footer-brand .brand-logo { width: min(360px, 100%); }
@media (max-width: 760px) {
  .brand-logo { width: clamp(195px, 49vw, 255px); }
  .site-header { gap: 8px; }
}
@media (max-width: 390px) { .brand-logo { width: 190px; } }