/* ============================================================
   Arcas Impex - shared stylesheet (modern theme)
   Sections: variables, base, header/nav, hero, sections,
   cards/grids, product detail, forms, footer, reveal, media
   ============================================================ */

/* ---------- Variables ---------- */
:root {
  --bg: #f6f8f6;
  --surface: #ffffff;
  --ink: #141f18;
  --muted: #5c6b60;
  --line: #e4ebe5;
  --green-950: #0b2416;
  --green-900: #10371f;
  --green-700: #19653a;
  --green-600: #1d8a4c;
  --green-500: #23a65c;
  --green-soft: #e9f5ee;
  --gold: #d9a441;
  --gold-soft: #faf3e2;
  --grad-green: linear-gradient(135deg, #23a65c, #136a3a);
  --grad-text: linear-gradient(90deg, #ffd98a, #d9a441);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 6px 24px rgba(16, 55, 31, 0.07);
  --shadow-lift: 0 18px 40px rgba(16, 55, 31, 0.14);
  --maxw: 1160px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 700;
}

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

a {
  color: var(--green-600);
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--green-600);
  background: var(--green-soft);
  border: 1px solid #d4ecdd;
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section {
  padding: 88px 0;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  color: var(--green-900);
  margin-bottom: 14px;
}

.section .lead {
  max-width: 700px;
  color: var(--muted);
  margin-bottom: 44px;
  font-size: 1.08rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 30px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font-weight: 650;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--grad-text);
  background: linear-gradient(135deg, #e8b75a, #c8922e);
  color: var(--green-950);
  box-shadow: 0 8px 20px rgba(217, 164, 65, 0.35);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.45);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.14);
}

.btn-green {
  background: var(--grad-green);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(29, 138, 76, 0.35);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(20, 31, 24, 0.07);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  flex: none;
}

.brand-name {
  font-size: 1.22rem;
  font-weight: 750;
  color: var(--green-900);
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.brand-tag {
  display: block;
  font-size: 0.64rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink);
  font-size: 0.93rem;
  font-weight: 600;
  padding: 8px 15px;
  border-radius: 999px;
  transition: background 0.18s, color 0.18s;
}

.nav-links a:hover {
  background: var(--green-soft);
  color: var(--green-700);
}

.nav-links a.active {
  background: var(--green-900);
  color: #ffffff;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--green-900);
  margin: 5px 0;
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  color: #ffffff;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(217, 164, 65, 0.22), transparent 60%),
    radial-gradient(700px 480px at -10% 110%, rgba(35, 166, 92, 0.25), transparent 60%),
    linear-gradient(150deg, #0b2416 0%, #123a21 55%, #15502c 100%);
  padding: 120px 0 110px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(70% 70% at 50% 30%, #000, transparent);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 30%, #000, transparent);
  pointer-events: none;
}

.hero-inner {
  max-width: 740px;
  position: relative;
  z-index: 1;
}

.hero .eyebrow {
  color: #ffd98a;
  background: rgba(217, 164, 65, 0.14);
  border-color: rgba(217, 164, 65, 0.35);
}

.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.6rem);
  margin-bottom: 20px;
}

.hero h1 .accent {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 1.14rem;
  color: #cfe2d4;
  margin-bottom: 34px;
  max-width: 620px;
}

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

/* Page hero (inner pages) */
.page-hero {
  position: relative;
  overflow: hidden;
  color: #ffffff;
  background:
    radial-gradient(700px 320px at 90% -20%, rgba(217, 164, 65, 0.2), transparent 60%),
    linear-gradient(150deg, #0b2416, #15502c);
  padding: 72px 0;
}

.page-hero .eyebrow {
  color: #ffd98a;
  background: rgba(217, 164, 65, 0.14);
  border-color: rgba(217, 164, 65, 0.35);
}

.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
}

.page-hero p {
  color: #cfe2d4;
  max-width: 680px;
  margin-top: 12px;
  font-size: 1.05rem;
}

/* ---------- Stats band ---------- */
.stats {
  background: var(--green-950);
  color: #ffffff;
  padding: 44px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-value {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  font-size: 0.88rem;
  color: #9fb8a7;
}

/* ---------- Cards / grids ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
  border-color: #cfe4d6;
}

.card h3 {
  color: var(--green-900);
  margin: 14px 0 8px;
  font-size: 1.12rem;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.card .icon {
  width: 56px;
  height: 56px;
  padding: 10px;
  border-radius: var(--radius-sm);
  background: var(--green-soft);
}

/* Product teaser card */
.product-card {
  text-align: center;
  text-decoration: none;
}

.product-card .icon {
  margin: 0 auto;
}

.product-card .more {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--green-600);
}

/* ---------- Product detail sections ---------- */
.product-detail {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: start;
  padding: 52px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.product-detail:last-of-type {
  border-bottom: none;
}

.product-figure {
  background: linear-gradient(160deg, var(--green-soft), #ffffff);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.product-detail h2 {
  color: var(--green-900);
  font-size: 1.65rem;
  margin-bottom: 12px;
}

.product-detail ul {
  margin: 16px 0 0 20px;
}

.product-detail li {
  margin-bottom: 7px;
  color: var(--ink);
}

.spec-label {
  font-weight: 700;
  color: var(--green-700);
}

.badge {
  display: inline-block;
  background: var(--green-soft);
  color: var(--green-700);
  border: 1px solid #d4ecdd;
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 650;
  margin: 0 6px 8px 0;
}

/* ---------- Two-column content ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.two-col p {
  color: var(--muted);
}

.value-list {
  list-style: none;
}

.value-list li {
  padding: 14px 16px 14px 46px;
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}

.value-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--grad-green);
}

.value-list strong {
  color: var(--green-900);
}

/* ---------- Steps (quality process) ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  counter-reset: step;
}

.step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  counter-increment: step;
  box-shadow: var(--shadow);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.step:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
}

.step::before {
  content: counter(step, decimal-leading-zero);
  display: inline-block;
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}

.step h3 {
  color: var(--green-900);
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.step p {
  color: var(--muted);
  font-size: 0.92rem;
}

/* ---------- Forms ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 48px;
  align-items: start;
}

.contact-info .card {
  margin-bottom: 16px;
}

.contact-info h2,
.contact-grid h2 {
  font-size: 1.6rem;
  color: var(--green-900);
  margin-bottom: 20px;
}

.enquiry-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

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

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--green-900);
  margin-bottom: 7px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  transition: border-color 0.18s, background 0.18s, box-shadow 0.18s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green-500);
  background: var(--surface);
  box-shadow: 0 0 0 4px rgba(35, 166, 92, 0.14);
}

.form-note {
  font-size: 0.84rem;
  color: var(--muted);
  margin-top: 14px;
}

.form-status {
  margin-top: 12px;
  font-size: 0.9rem;
  font-weight: 600;
}

.form-status.ok {
  color: var(--green-600);
}

.form-status.error {
  color: #c0392b;
}

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(600px 300px at 15% 120%, rgba(217, 164, 65, 0.25), transparent 60%),
    linear-gradient(150deg, #10371f, #19653a);
  color: #ffffff;
  padding: 72px 0;
  text-align: center;
}

.cta-band h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 12px;
}

.cta-band p {
  margin-bottom: 28px;
  color: #cfe2d4;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.cta-band .btn-green {
  background: linear-gradient(135deg, #e8b75a, #c8922e);
  color: var(--green-950);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--green-950);
  color: #9fb8a7;
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 36px;
  margin-bottom: 40px;
}

.site-footer h4 {
  color: #ffffff;
  font-size: 0.98rem;
  margin-bottom: 16px;
}

.site-footer ul {
  list-style: none;
}

.site-footer li {
  margin-bottom: 9px;
}

.site-footer a {
  color: #9fb8a7;
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.18s;
}

.site-footer a:hover {
  color: #ffd98a;
}

.footer-about p {
  font-size: 0.92rem;
  max-width: 320px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.84rem;
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .card, .step, .btn {
    transition: none;
  }
}

/* ---------- Media queries ---------- */
@media (max-width: 960px) {
  .card-grid,
  .card-grid.cols-5 {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid,
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .two-col,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero {
    padding: 88px 0;
  }
}

@media (max-width: 680px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 20px 18px;
    box-shadow: var(--shadow-lift);
  }

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

  .nav-links a {
    display: block;
    padding: 12px 16px;
  }

  .card-grid,
  .card-grid.cols-5,
  .steps,
  .form-row {
    grid-template-columns: 1fr;
  }

  .product-detail {
    grid-template-columns: 1fr;
  }

  .product-figure {
    max-width: 220px;
  }

  .section {
    padding: 64px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Blog index ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.post-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.post-card h3 {
  margin: 10px 0 8px;
  font-size: 1.08rem;
  line-height: 1.35;
}

.post-card .post-meta {
  margin-top: auto;
  padding-top: 14px;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---------- Article pages ---------- */
.page-hero .article-meta {
  color: #9fc3aa;
  font-size: 0.88rem;
  margin-top: 14px;
}

.article {
  max-width: 800px;
  margin: 0 auto;
  padding: 56px 24px 72px;
}

.article-lead {
  font-size: 1.1rem;
  background: var(--green-soft);
  border-left: 4px solid var(--green-600);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 22px;
  margin-bottom: 36px;
}

.article h2 {
  font-size: 1.45rem;
  color: var(--green-900);
  margin: 42px 0 12px;
}

.article h3 {
  font-size: 1.1rem;
  color: var(--green-700);
  margin: 26px 0 8px;
}

.article p {
  margin: 12px 0;
}

.article ul,
.article ol {
  margin: 12px 0 12px 24px;
}

.article li {
  margin: 6px 0;
}

.article .tablebox {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin: 20px 0;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.article table {
  border-collapse: collapse;
  width: 100%;
  min-width: 560px;
  font-size: 0.92rem;
}

.article th {
  background: var(--green-soft);
  color: var(--green-700);
  text-align: left;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 11px 14px;
  border-bottom: 2px solid var(--line);
  white-space: nowrap;
}

.article td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.article tr:last-child td {
  border-bottom: none;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}

.faq-item h3 {
  margin: 0 0 6px;
  color: var(--green-900);
  font-size: 1rem;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
}

.entity-note {
  font-size: 0.92rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding-top: 18px;
}

.cta-box {
  background:
    radial-gradient(400px 200px at 90% 120%, rgba(217, 164, 65, 0.25), transparent 60%),
    linear-gradient(150deg, #10371f, #19653a);
  color: #ffffff;
  border-radius: var(--radius);
  padding: 30px 32px;
  margin-top: 36px;
}

.cta-box h2 {
  color: #ffffff;
  font-size: 1.3rem;
  margin: 0 0 8px;
}

.cta-box p {
  color: #cfe2d4;
  margin: 0 0 18px;
}

@media (max-width: 960px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
}