:root {
  --brand-primary: #1b4f3a;
  --brand-secondary: #f8f7f3;
  --brand-accent: #d97a26;
  --text-dark: #1f1f1f;
  --text-light: #ffffff;
  --max-width: 1180px;
  --shadow-soft: 0 20px 45px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  background-color: var(--brand-secondary);
  line-height: 1.6;
}

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

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

.site-header {
  position: relative;
  color: var(--text-light);
  display: flex;
  flex-direction: column;
}

.home-header {
  background: linear-gradient(135deg, rgba(27, 79, 58, 0.88), rgba(217, 122, 38, 0.72)),
    url("../images/hero_background.jpg") center/cover;
  min-height: 85vh;
}

.internal-header {
  --hero-image: url("../images/office_supplies.jpg");
  min-height: 360px;
  background-image: linear-gradient(135deg, rgba(27, 79, 58, 0.85), rgba(13, 41, 30, 0.85)),
    var(--hero-image);
  background-size: cover;
  background-position: center;
}

.hero-about {
  --hero-image: url("../images/business_partnership.jpg");
}

.hero-services {
  --hero-image: url("../images/inventory_management.jpg");
}

.hero-contact {
  --hero-image: url("../images/paper_manufacturing.jpg");
}

.hero-policy {
  --hero-image: url("../images/office_paper.jpg");
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(27, 79, 58, 0.88);
  backdrop-filter: blur(10px);
}

.navbar .brand {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.navbar .nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
  align-items: center;
}

.navbar .nav-links a {
  font-weight: 500;
  transition: var(--transition);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.navbar .nav-links a:hover,
.navbar .nav-links a:focus {
  color: var(--brand-accent);
}

.navbar .nav-links a.current {
  color: var(--brand-accent);
  border-bottom-color: var(--brand-accent);
}

.nav-toggle {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.6rem;
  display: none;
  cursor: pointer;
}

.hero {
  flex: 1;
  display: grid;
  align-items: center;
  padding: 80px 48px 120px;
}

.hero-content {
  max-width: 640px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(248, 247, 243, 0.15);
  padding: 10px 18px;
  border-radius: 24px;
  margin-bottom: 22px;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.6rem);
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.05rem;
  margin-bottom: 28px;
}

.hero-brand-points {
  display: grid;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-brand-points li {
  background: rgba(248, 247, 243, 0.18);
  padding: 14px 18px;
  border-radius: 16px;
  list-style: none;
  display: flex;
  gap: 12px;
  align-items: center;
}

.hero-brand-points span.icon {
  width: 12px;
  height: 12px;
  background: var(--brand-accent);
  border-radius: 50%;
  display: inline-block;
}

.button-group {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.button-primary,
.button-secondary {
  padding: 14px 26px;
  border-radius: 28px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.button-primary {
  background: var(--brand-accent);
  color: var(--text-light);
  box-shadow: var(--shadow-soft);
}

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

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: var(--text-light);
}

.section {
  padding: 100px 24px;
}

.section-alt {
  background: #ffffff;
}

.container {
  margin: 0 auto;
  max-width: var(--max-width);
}

.section-title {
  display: flex;
  align-items: center;
  gap: 14px;
  text-transform: uppercase;
  font-size: 0.82rem;
  color: var(--brand-accent);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.section-heading {
  margin: 0 0 24px;
  font-size: clamp(2rem, 3.5vw, 2.6rem);
}

.section-description {
  max-width: 760px;
  margin-bottom: 40px;
  color: #434343;
}

.grid {
  display: grid;
  gap: 32px;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.card {
  background: rgba(255, 255, 255, 0.85);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  backdrop-filter: blur(6px);
}

.card:hover {
  transform: translateY(-4px);
}

.card img {
  border-radius: 16px;
  margin-bottom: 18px;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--brand-primary);
}

.highlight {
  color: var(--brand-accent);
}

.about-content {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.about-image {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.fact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 18px;
}

.fact-list li {
  background: #f1ede4;
  padding: 18px 22px;
  border-radius: 16px;
  font-weight: 600;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--brand-primary);
  margin-top: 18px;
}

.link-arrow::after {
  content: "→";
  font-size: 0.95em;
  transition: var(--transition);
}

.link-arrow:hover::after {
  transform: translateX(4px);
}

.page-hero {
  flex: 1;
  display: flex;
  align-items: flex-end;
  padding: 140px 24px 80px;
}

.page-hero .container {
  position: relative;
  max-width: var(--max-width);
}

.page-hero h1 {
  margin: 0 0 16px;
  font-size: clamp(2.4rem, 4vw, 3rem);
}

.page-hero p {
  max-width: 680px;
  font-size: 1.05rem;
  margin: 0;
}

.statement {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--brand-primary);
  margin: 18px 0 32px;
}

.contact-section {
  background: linear-gradient(135deg, #ffffff 0%, #f3f3f3 60%, rgba(27, 79, 58, 0.08) 100%);
}

.contact-wrapper {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  align-items: start;
}

.contact-card {
  background: #ffffff;
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-soft);
}

.contact-card h3 {
  margin-top: 0;
  margin-bottom: 16px;
}

.contact-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.contact-card li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.contact-form {
  display: grid;
  gap: 18px;
}

.contact-form label {
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(27, 79, 58, 0.2);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--brand-accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(217, 122, 38, 0.2);
}

.checkbox-group {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.92rem;
}

.checkbox-group input[type="checkbox"] {
  margin-top: 4px;
}

.policy-summary {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.policy {
  background: #ffffff;
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-soft);
}

.policy h3 {
  margin-top: 0;
  color: var(--brand-primary);
}

.policy p {
  margin-bottom: 12px;
  color: #3e3e3e;
}

.policy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.policy-links a {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(27, 79, 58, 0.18);
  background: rgba(255, 255, 255, 0.7);
  font-weight: 600;
  transition: var(--transition);
}

.policy-links a:hover {
  border-color: var(--brand-accent);
  color: var(--brand-accent);
}

.policy-links a.current {
  background: var(--brand-accent);
  border-color: var(--brand-accent);
  color: var(--text-light);
}

.rich-text {
  background: rgba(255, 255, 255, 0.86);
  border-radius: 24px;
  padding: 36px;
  box-shadow: var(--shadow-soft);
}

.rich-text h2 {
  margin-top: 0;
  color: var(--brand-primary);
  font-size: 1.6rem;
}

.rich-text h3 {
  color: var(--brand-primary);
  margin-top: 32px;
  font-size: 1.25rem;
}

.rich-text p {
  margin-bottom: 18px;
  color: #3e3e3e;
}

.rich-text ul,
.rich-text ol {
  margin: 0 0 18px 22px;
  color: #3e3e3e;
  padding-left: 18px;
}

.rich-text li {
  margin-bottom: 10px;
}

.rich-text strong {
  color: var(--brand-primary);
}

.rich-text a {
  color: var(--brand-accent);
  font-weight: 600;
}

.footer {
  background: #0f2b1f;
  color: rgba(255, 255, 255, 0.85);
  padding: 32px 24px;
}

.footer .footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
}

.footer .footer-inner small {
  opacity: 0.8;
}

.footer-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  background: var(--brand-primary);
  color: var(--text-light);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 960px) {
  .navbar {
    padding: 18px 24px;
  }

  .navbar .nav-links {
    position: absolute;
    top: 100%;
    right: 24px;
    flex-direction: column;
    background: rgba(27, 79, 58, 0.95);
    padding: 18px 24px;
    border-radius: 18px;
    box-shadow: var(--shadow-soft);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    min-width: 200px;
  }

  .navbar .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero {
    padding: 60px 24px 100px;
  }

  .page-hero {
    padding: 120px 24px 70px;
  }

  .button-group {
    width: 100%;
  }

  .button-primary,
  .button-secondary {
    justify-content: center;
    width: 100%;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 80px 20px;
  }

  .rich-text {
    padding: 28px;
  }
}

@media (max-width: 520px) {
  .navbar .nav-links {
    right: 12px;
    width: calc(100% - 24px);
  }
}