/* ==========================================================================
    NovaChem — "Industrial Integrity" Design System
    ========================================================================== */

:root {
  /* Color tokens */
  --surface: #f7f9fb;
  --surface-dim: #d8dadc;
  --surface-bright: #f7f9fb;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f2f4f6;
  --surface-container: #eceef0;
  --surface-container-high: #e6e8ea;
  --surface-container-highest: #e0e3e5;
  --on-surface: #191c1e;
  --on-surface-variant: #5d3f3c;
  --inverse-surface: #2d3133;
  --inverse-on-surface: #eff1f3;
  --outline: #916f6b;
  --outline-variant: #e6bdb8;

  --primary: #9e000d;
  --primary-strong: #c90c18;
  --on-primary: #ffffff;
  --primary-container: #c90c18;
  --on-primary-container: #ffd9d5;

  --secondary: #12181c;
  --on-secondary: #ffffff;
  --secondary-container: #dde3e9;
  --on-secondary-container: #5f656a;

  --tertiary: #3d4d63;
  --tertiary-steel: #64748b;
  --on-tertiary: #ffffff;

  --error: #ba1a1a;
  --on-error: #ffffff;
  --error-container: #ffdad6;
  --on-error-container: #93000a;

  --lab-white: #f8fafc;
  --charcoal-ink: #12181c;
  --steel-gray: #64748b;
  --border-default: #e2e8f0;
  --zebra: #f1f5f9;

  --background: #f7f9fb;
  --on-background: #191c1e;

  /* Typography */
  --font-display: 'Hanken Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --unit: 4px;
  --gutter: 24px;
  --margin-desktop: 64px;
  --margin-mobile: 16px;
  --container-max: 1280px;

  /* Radius */
  --radius-sm: 0.125rem;
  --radius: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-technical: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-lifted: 0 4px 10px rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
    Reset & base
    ========================================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--on-surface);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

:focus-visible {
  outline: 2px solid var(--primary-strong);
  outline-offset: 2px;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--margin-mobile);
  width: 100%;
  overflow-x: hidden;
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--margin-desktop);
  }
}

/* ==========================================================================
    Typography scale
    ========================================================================== */

.headline-display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .headline-display {
    font-size: 48px;
    line-height: 56px;
  }
}

.headline-lg {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  line-height: 36px;
}

@media (min-width: 768px) {
  .headline-lg {
    font-size: 32px;
    line-height: 40px;
    letter-spacing: -0.01em;
  }
}

.headline-md {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  line-height: 28px;
}

.body-lg {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 28px;
  color: var(--steel-gray);
}

.body-md {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 24px;
  color: var(--steel-gray);
}

.label-caps {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.label-md {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary-strong);
  display: inline-block;
  margin-bottom: 12px;
}

/* ==========================================================================
    Buttons
    ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: var(--radius);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-strong);
  color: var(--on-primary);
}

.btn-primary:hover {
  background: var(--primary);
  box-shadow: var(--shadow-lifted);
}

.btn-secondary {
  background: transparent;
  color: var(--charcoal-ink);
  border: 1px solid var(--charcoal-ink);
}

.btn-secondary:hover {
  background: var(--charcoal-ink);
  color: var(--on-primary);
}

.btn-ghost-light {
  background: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
}

.btn-sm {
  padding: 10px 18px;
  font-size: 11px;
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
    Header
    ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-container-lowest);
  border-bottom: 1px solid var(--border-default);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--primary-strong);
  letter-spacing: -0.01em;
  flex-shrink: 0;
  display: inline-flex;
  align-items: baseline;
  gap: 0.2em;
  flex-wrap: wrap;
}

.logo-main {
  display: inline-block;
}

.logo-suffix {
  display: inline-block;
  font-size: 0.72em;
  font-weight: 600;
  opacity: 0.9;
}

.main-nav {
  display: none;
  gap: 32px;
  align-items: center;
}

.main-nav a {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--charcoal-ink);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover {
  color: var(--primary-strong);
}

.main-nav a.active {
  color: var(--primary-strong);
  border-bottom-color: var(--primary-strong);
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  justify-content: flex-end;
}

.search-box {
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--surface-container-low);
  border: 1px solid var(--border-default);
  border-radius: var(--radius);
  padding: 8px 14px;
  min-width: 220px;
}

.search-box input {
  background: transparent;
  border: none;
  outline: none;
  font-size: 14px;
  width: 100%;
  color: var(--on-surface);
}

.search-box svg {
  flex-shrink: 0;
  color: var(--steel-gray);
}

@media (min-width: 768px) {
  .search-box {
    display: flex;
  }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--charcoal-ink);
  display: block;
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }
}

.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--surface-container-lowest);
  border-bottom: 1px solid var(--border-default);
  padding: 8px var(--margin-mobile) 16px;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  padding: 12px 0;
  font-weight: 500;
  font-size: 15px;
  border-bottom: 1px solid var(--border-default);
}

.mobile-nav a:last-child {
  border-bottom: none;
}

@media (min-width: 1024px) {
  .mobile-nav {
    display: none !important;
  }
}

/* ==========================================================================
    Hero
    ========================================================================== */

.hero {
  position: relative;
  background: var(--charcoal-ink);
  color: #ffffff;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(18, 24, 28, 0.94) 0%, rgba(18, 24, 28, 0.72) 45%, rgba(18, 24, 28, 0.55) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.05) 0 2px, transparent 2px 140px),
    linear-gradient(160deg, #2a3239 0%, #11161a 60%, #1c2227 100%);
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 18% 30%, rgba(201, 12, 24, 0.18), transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(100, 116, 139, 0.18), transparent 45%);
}

.hero-content {
  position: relative;
  padding: 72px 0 96px;
  max-width: 640px;
}

.hero-content p.body-lg {
  color: rgba(255, 255, 255, 0.78);
  margin: 16px 0 32px;
}

.hero-content .headline-display {
  color: #ffffff;
}

.hero-content .headline-display .accent {
  color: var(--primary-strong);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 120px;
  align-items: center;
  gap: 1rem;
}

.hero-media {
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: 12px;
}

@media (min-width: 480px) {
  .hero-grid {
    grid-template-columns: 1fr 160px;
  }
}

@media (min-width: 640px) {
  .hero-grid {
    grid-template-columns: 1fr 220px;
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .hero-media {
    margin-left: 75px;
  }
}

.hero-pillar {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--primary-strong), rgba(201,12,24,0.2));
  opacity: 0.6;
}

.hero-pillar.p1 { left: 22%; }
.hero-pillar.p2 { left: 24%; }

/* Stats bar */
.stats-bar {
  background: var(--charcoal-ink);
  color: #ffffff;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  padding: 36px var(--margin-mobile);
}

@media (min-width: 768px) {
  .stats-bar .container {
    grid-template-columns: repeat(4, 1fr);
    padding: 36px var(--margin-desktop);
  }
}

.stat .stat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 28px;
}

.stat .stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* ==========================================================================
    Generic sections
    ========================================================================== */

.section {
  padding: 64px 0;
}

@media (min-width: 1024px) {
  .section {
    padding: 96px 0;
  }
}

.section-light { background: var(--surface); }
.section-white { background: var(--surface-container-lowest); }
.section-dark {
  background: var(--charcoal-ink);
  color: #ffffff;
}
.section-dark .body-md, .section-dark .body-lg {
  color: rgba(255,255,255,0.7);
}

.section-head {
  margin-bottom: 40px;
}

.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* Image placeholder block (used where photography would sit) */
.media-block {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, #3d4d63, #12181c);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  min-height: 220px;
}

.media-block svg {
  width: 48px;
  height: 48px;
  opacity: 0.7;
}

.media-block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.media-block.tone-steel { background: linear-gradient(135deg, #64748b, #1c2227); }
.media-block.tone-red { background: linear-gradient(135deg, #c90c18, #410002); }
.media-block.tone-light {
  background: var(--surface-container-low);
  color: var(--steel-gray);
}

.media-block.has-image {
  background: none;
}

.decorative-panel {
  position: relative;
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: 34px;
  min-height: 260px;
  overflow: hidden;
  display: grid;
}

.decorative-panel-content {
  position: relative;
  z-index: 1;
}

.decorative-panel-accent {
  position: absolute;
  border-radius: 50%;
  opacity: 0.24;
  pointer-events: none;
}

.decorative-panel-accent.accent-top {
  top: -20px;
  right: -24px;
  width: 132px;
  height: 132px;
  background: rgba(255, 138, 128, 0.24);
}

.decorative-panel-accent.accent-bottom {
  bottom: -18px;
  left: -18px;
  width: 108px;
  height: 108px;
  background: rgba(22, 27, 34, 0.09);
}

.icon-feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  padding: 24px;
}

.icon-feature svg {
  width: 44px;
  height: 44px;
  opacity: 0.9;
}

.icon-feature .label-caps {
  color: inherit;
  opacity: 0.85;
  font-size: 11px;
}

/* Two-column feature */
.split {
  display: grid;
  gap: 40px;
  align-items: center;
}

@media (min-width: 1024px) {
  .split {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }
  .split.reverse > *:first-child {
    order: 2;
  }
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0 28px;
}

.feature-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--steel-gray);
}

.feature-list svg {
  flex-shrink: 0;
  color: var(--primary-strong);
  margin-top: 2px;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-default);
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  color: var(--charcoal-ink);
}

.pill svg { color: var(--primary-strong); }

/* Badge over media block */
.media-badge {
  position: absolute;
  bottom: -1px;
  right: -1px;
  width: 64px;
  height: 64px;
  background: var(--primary-strong);
  border-radius: var(--radius-lg) 0 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-badge svg { color: #fff; width: 26px; height: 26px; }

/* ==========================================================================
    Cards (categories, values, products)
    ========================================================================== */

.card-grid {
  display: grid;
  gap: var(--gutter);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
}

.category-card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-technical);
  transition: box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}

.category-card:hover {
  border-color: var(--primary-strong);
  box-shadow: var(--shadow-lifted);
  transform: translateY(-2px);
}

.category-card .media-block { min-height: 170px; border-radius: 0; }

.category-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.category-card-body ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--steel-gray);
}

.category-card-body ul li::before {
  content: "— ";
  color: var(--primary-strong);
  font-weight: 700;
}

.value-card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-technical);
  text-align: left;
}

.value-card .icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--error-container);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--primary-strong);
}

.value-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 8px;
}

/* ==========================================================================
    CTA Band
    ========================================================================== */

.cta-band {
  background: linear-gradient(120deg, var(--primary-strong), var(--primary));
  color: #fff;
  text-align: center;
  padding: 64px var(--margin-mobile);
}

.cta-band h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 30px;
  margin-bottom: 12px;
}

@media (min-width: 768px) {
  .cta-band h2 { font-size: 38px; }
}

.cta-band p {
  max-width: 560px;
  margin: 0 auto 28px;
  color: rgba(255,255,255,0.88);
}

.cta-band .btn-group {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--primary-strong);
}

.cta-band .btn-primary:hover {
  background: var(--surface-container-low);
}

/* ==========================================================================
    Footer
    ========================================================================== */

.site-footer {
  background: var(--charcoal-ink);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}

.footer-grid h4 {
  font-family: var(--font-display);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer-grid p { font-size: 14px; line-height: 22px; }

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
}

.footer-col a:hover { color: #fff; }

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-bottom {
  text-align: center;
  font-size: 12px;
  padding: 20px 0;
  color: rgba(255,255,255,0.4);
}

/* ==========================================================================
    Page header / breadcrumb hero (About / Catalogue / Ratings)
    ========================================================================== */

.page-hero {
  position: relative;
  background: var(--charcoal-ink);
  color: #fff;
  padding: 64px 0 56px;
  overflow: hidden;
}

.page-hero .hero-bg { opacity: 0.9; }

.page-hero .body-lg { color: rgba(255,255,255,0.78); max-width: 640px; }

.page-hero .accent-rule {
  width: 64px;
  height: 4px;
  background: var(--primary-strong);
  margin-top: 24px;
}

.simple-page-head {
  padding: 56px 0 32px;
}

.simple-page-head .body-lg { max-width: 620px; color: var(--steel-gray); }

/* ==========================================================================
    Table / list helpers
    ========================================================================== */

.divider {
  height: 1px;
  background: var(--border-default);
  margin: 0;
}

/* Utility */
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.text-center { text-align: center; }

/* ==========================================================================
    Mobile fixes - prevent overflow on right side
    ========================================================================== */

@media (max-width: 767px) {
  .split {
    gap: 24px;
  }
}

/* ==========================================================================
    Infinite Marquee
    ========================================================================== */

.marquee-section {
  width: 100%;
  overflow: hidden;
  background-color: var(--primary);
  color: var(--on-primary);
  padding: 0.55rem 0;
  display: flex;
  align-items: center;
  border-top: 1px solid var(--primary-strong);
  border-bottom: 1px solid var(--primary-strong);
}

.marquee-container {
  display: flex;
  width: fit-content;
  animation: marquee 25s linear infinite;
}

.marquee-container:hover {
  animation-play-state: paused;
}

.marquee-content {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 2rem;
  padding-right: 2rem;
}

.marquee-content span {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}