/* Nature Pak / TMA Pak - Main Stylesheet */
:root {
  --green-dark: #2d6a2d;
  --green-mid: #4a8c3f;
  --green-light: #6db33f;
  --green-pale: #e8f5e1;
  --green-accent: #8fc03e;
  --brown-earth: #6b4f2e;
  --white: #ffffff;
  --off-white: #f8faf5;
  --text-dark: #1e2d1e;
  --text-mid: #3d4d3d;
  --text-light: #6e7e6e;
  --border: #d4e8c8;
  --shadow: rgba(45, 106, 45, 0.12);
  --font-heading: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.65;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--green-mid); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--green-dark); }
ul { list-style: none; }

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-dark);
  line-height: 1.25;
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1em; color: var(--text-mid); }

/* ── LAYOUT ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section--alt { background: var(--off-white); }
.section--green { background: var(--green-dark); color: var(--white); }
.section--green h2, .section--green h3, .section--green p { color: var(--white); }

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  letter-spacing: 0.02em;
}
.btn--primary {
  background: var(--green-light);
  color: var(--white);
  border-color: var(--green-light);
}
.btn--primary:hover { background: var(--green-dark); border-color: var(--green-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 6px 20px var(--shadow); }
.btn--outline {
  background: transparent;
  color: var(--green-dark);
  border-color: var(--green-dark);
}
.btn--outline:hover { background: var(--green-dark); color: var(--white); transform: translateY(-2px); }
.btn--white {
  background: var(--white);
  color: var(--green-dark);
  border-color: var(--white);
}
.btn--white:hover { background: var(--green-pale); transform: translateY(-2px); }

/* ── HEADER / NAV ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px var(--shadow);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.site-logo { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; }
.site-logo img { height: 48px; width: auto; }
.logo-text { font-size: 1.4rem; font-weight: 800; color: var(--green-dark); line-height: 1.1; }
.logo-sub { font-size: 0.7rem; color: var(--green-light); letter-spacing: 0.1em; text-transform: uppercase; display: block; font-weight: 500; }

.main-nav { display: flex; align-items: center; gap: 0.25rem; }
.main-nav a {
  padding: 0.5rem 0.9rem;
  color: var(--text-mid);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius);
  transition: all var(--transition);
}
.main-nav a:hover, .main-nav a.active { color: var(--green-dark); background: var(--green-pale); }
.nav-cta { margin-left: 0.5rem; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-dark); border-radius: 2px; transition: all var(--transition); }

/* ── MOBILE NAV ── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  z-index: 999;
  padding: 1rem 1.5rem;
  box-shadow: 0 8px 24px var(--shadow);
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-dark);
  font-weight: 500;
  font-size: 1rem;
}
.mobile-nav a:last-child { border-bottom: none; }

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green-mid) 60%, var(--green-accent) 100%);
  color: var(--white);
  padding: 6rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero-content h1 { color: var(--white); margin-bottom: 0.25em; }
.hero-tagline { font-size: clamp(1rem, 2vw, 1.25rem); color: rgba(255,255,255,0.85); margin-bottom: 2rem; line-height: 1.5; }
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-image { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-image img { border-radius: var(--radius-lg); box-shadow: 0 20px 60px rgba(0,0,0,0.3); max-height: 420px; object-fit: contain; }
.hero-badge {
  position: absolute;
  bottom: -1rem;
  right: -1rem;
  background: var(--white);
  color: var(--green-dark);
  border-radius: 50%;
  width: 100px;
  height: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  line-height: 1.2;
}

/* ── FEATURES BAR ── */
.features-bar {
  background: var(--green-dark);
  padding: 1.5rem 0;
}
.features-bar-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.feature-item { display: flex; align-items: center; gap: 0.6rem; color: var(--white); font-size: 0.9rem; font-weight: 500; }
.feature-item svg { flex-shrink: 0; }

/* ── PRODUCT GRID ── */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header p { font-size: 1.1rem; color: var(--text-light); max-width: 600px; margin: 0.75rem auto 0; }
.section-tag {
  display: inline-block;
  padding: 0.3rem 1rem;
  background: var(--green-pale);
  color: var(--green-dark);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.product-card:hover { box-shadow: 0 8px 30px var(--shadow); transform: translateY(-4px); border-color: var(--green-light); }
.product-card-img {
  background: var(--green-pale);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}
.product-card-img img { max-height: 120px; width: auto; object-fit: contain; }
.product-card-body { padding: 1rem 1.25rem 1.25rem; flex: 1; display: flex; flex-direction: column; }
.product-card h4 { font-size: 0.95rem; color: var(--text-dark); margin-bottom: 0.75rem; line-height: 1.3; flex: 1; }
.product-card-actions { display: flex; gap: 0.5rem; }
.product-card-actions a { font-size: 0.78rem; padding: 0.4rem 0.8rem; border-radius: 50px; border: 1px solid var(--green-light); color: var(--green-dark); font-weight: 600; transition: all var(--transition); }
.product-card-actions a:hover { background: var(--green-light); color: var(--white); }

/* ── PRODUCT CATEGORIES ── */
.product-categories { margin-bottom: 2.5rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.cat-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--green-dark);
  padding: 0.4rem 1.2rem;
  background: var(--green-pale);
  border-radius: 50px;
  letter-spacing: 0.03em;
}

/* ── SUSTAINABILITY ICONS ── */
.sustainability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 2rem;
}
.sust-item { text-align: center; }
.sust-item img { width: 80px; height: 80px; object-fit: contain; margin: 0 auto 1rem; }
.sust-item h5 { font-size: 0.9rem; color: var(--text-dark); line-height: 1.3; margin-bottom: 0.5rem; }
.sust-item p { font-size: 0.85rem; color: var(--text-light); }

/* ── ABOUT SECTION ── */
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-text h2 { margin-bottom: 1rem; }
.about-image img { border-radius: var(--radius-lg); box-shadow: 0 12px 40px var(--shadow); }

/* ── SOLUTIONS GRID ── */
.solutions-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1.5rem; }
.solution-card { text-align: center; padding: 2rem 1.5rem; background: var(--white); border-radius: var(--radius-lg); border: 1px solid var(--border); transition: all var(--transition); }
.solution-card:hover { box-shadow: 0 8px 30px var(--shadow); transform: translateY(-4px); border-color: var(--green-light); }
.solution-card img { width: 80px; height: 80px; object-fit: contain; margin: 0 auto 1rem; }
.solution-card h3 { font-size: 1rem; color: var(--green-dark); }

/* ── CTA BANNER ── */
.cta-banner {
  background: linear-gradient(135deg, var(--green-dark), var(--green-mid));
  padding: 5rem 0;
  text-align: center;
  color: var(--white);
}
.cta-banner h2 { color: var(--white); margin-bottom: 1rem; }
.cta-banner p { color: rgba(255,255,255,0.85); font-size: 1.1rem; margin-bottom: 2rem; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ── ABOUT PAGE ── */
.page-hero {
  background: linear-gradient(135deg, var(--green-dark), var(--green-mid));
  padding: 4rem 0;
  text-align: center;
  color: var(--white);
}
.page-hero h1 { color: var(--white); margin-bottom: 0.5rem; }
.page-hero p { color: rgba(255,255,255,0.85); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* ── PAGE HERO WITH BACKGROUND IMAGE ── */
.page-hero--bg {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 6rem 0 4rem;
}
.page-hero--bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(31,74,31,0.88) 0%, rgba(45,106,45,0.75) 55%, rgba(74,140,63,0.65) 100%);
  z-index: 0;
}
.page-hero--bg > .container { position: relative; z-index: 1; }
.page-hero .breadcrumb {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.78);
  margin-bottom: 14px;
}
.page-hero .breadcrumb a { color: rgba(255,255,255,0.78); text-decoration: underline; text-decoration-color: rgba(255,255,255,0.3); }
.page-hero .breadcrumb a:hover { color: #fff; }

.values-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.value-card { padding: 2rem; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); border-left: 4px solid var(--green-light); }
.value-card h3 { color: var(--green-dark); margin-bottom: 0.75rem; }

/* ── SINGLE/DOUBLE WALL ── */
.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.comparison-card { padding: 2rem; border-radius: var(--radius-lg); }
.comparison-card--single { background: var(--off-white); border: 1px solid var(--border); }
.comparison-card--double { background: var(--green-dark); color: var(--white); }
.comparison-card--double h3, .comparison-card--double li { color: var(--white); }
.comparison-card ul { list-style: disc; padding-left: 1.25rem; }
.comparison-card li { margin-bottom: 0.5rem; font-size: 0.95rem; color: var(--text-mid); }
.comparison-card h3 { margin-bottom: 1rem; }
.comparison-card img { border-radius: var(--radius); margin-top: 1.5rem; }

.twist-features { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1.5rem; margin-top: 3rem; }
.twist-feature { text-align: center; padding: 1.5rem; }
.twist-feature img { width: 72px; height: 72px; object-fit: contain; margin: 0 auto 1rem; }
.twist-feature h5 { color: var(--green-dark); margin-bottom: 0.5rem; }

/* ── CONTACT FORM ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 4rem; align-items: start; }
.contact-info h3 { color: var(--green-dark); margin-bottom: 1.5rem; }
.contact-detail { display: flex; gap: 1rem; margin-bottom: 1.5rem; align-items: flex-start; }
.contact-detail-icon { width: 44px; height: 44px; background: var(--green-pale); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-detail-icon svg { color: var(--green-dark); }
.contact-detail-text h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-light); margin-bottom: 0.25rem; }
.contact-detail-text p { margin: 0; font-weight: 500; }

.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; color: var(--text-dark); margin-bottom: 0.4rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-dark);
  background: var(--white);
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { outline: none; border-color: var(--green-light); box-shadow: 0 0 0 3px rgba(107, 179, 63, 0.15); }
.form-group textarea { resize: vertical; min-height: 140px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-success { display: none; padding: 1rem 1.5rem; background: var(--green-pale); border: 1px solid var(--green-light); border-radius: var(--radius); color: var(--green-dark); font-weight: 500; margin-bottom: 1rem; }
.form-error { display: none; padding: 1rem 1.5rem; background: #fef2f2; border: 1px solid #f87171; border-radius: var(--radius); color: #dc2626; font-weight: 500; margin-bottom: 1rem; }

/* ── ARTICLE PAGES ── */
.article-content { max-width: 860px; margin: 0 auto; }
.article-content h2 { margin-bottom: 1rem; margin-top: 2.5rem; }
.article-content h3 { margin-bottom: 0.75rem; margin-top: 2rem; color: var(--green-dark); }
.article-content p { margin-bottom: 1.25rem; }
.article-content ul { list-style: disc; padding-left: 1.5rem; margin-bottom: 1.25rem; }
.article-content ul li { margin-bottom: 0.4rem; color: var(--text-mid); }
.article-content img { border-radius: var(--radius-lg); margin: 2rem 0; box-shadow: 0 8px 30px var(--shadow); }

/* ── BLOG POSTS NAV ── */
.learn-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.learn-card { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); transition: all var(--transition); background: var(--white); }
.learn-card:hover { box-shadow: 0 8px 30px var(--shadow); transform: translateY(-4px); }
.learn-card-img { height: 180px; overflow: hidden; background: var(--green-pale); display: flex; align-items: center; justify-content: center; }
.learn-card-img img { width: 100%; height: 100%; object-fit: cover; }
.learn-card-body { padding: 1.25rem; }
.learn-card-body h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.learn-card-body p { font-size: 0.88rem; color: var(--text-light); margin: 0; }
.learn-card-tag { display: inline-block; padding: 0.2rem 0.7rem; background: var(--green-pale); color: var(--green-dark); font-size: 0.75rem; font-weight: 600; border-radius: 50px; margin-bottom: 0.5rem; }

/* ── FOOTER ── */
.site-footer {
  background: var(--text-dark);
  color: rgba(255,255,255,0.75);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand .logo-text { color: var(--white); }
.footer-brand .logo-sub { color: var(--green-accent); }
.footer-brand p { font-size: 0.9rem; margin-top: 1rem; line-height: 1.7; }
.footer-col h4 { color: var(--white); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1.25rem; }
.footer-col ul li { margin-bottom: 0.6rem; }
.footer-col ul li a { color: rgba(255,255,255,0.65); font-size: 0.9rem; transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--green-accent); }
.footer-col p { font-size: 0.9rem; line-height: 1.7; }
.footer-col a { color: rgba(255,255,255,0.65); }
.footer-col a:hover { color: var(--green-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.85rem;
}
.footer-bottom p { color: rgba(255,255,255,0.5); margin: 0; }
.footer-legal { display: flex; gap: 1.5rem; }
.footer-legal a { color: rgba(255,255,255,0.5); font-size: 0.85rem; }
.footer-legal a:hover { color: var(--green-accent); }

/* ── CUSTOM PRINTING PAGE ── */
.printing-benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.printing-benefit { text-align: center; padding: 2.5rem 1.5rem; background: var(--off-white); border-radius: var(--radius-lg); border-bottom: 3px solid var(--green-light); }
.printing-benefit h3 { color: var(--green-dark); margin-bottom: 0.75rem; font-size: 1.1rem; }
.event-types { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.event-tag { padding: 0.35rem 1rem; background: var(--green-pale); color: var(--green-dark); border-radius: 50px; font-size: 0.85rem; font-weight: 500; }

/* ── TERMS ── */
.terms-content { max-width: 800px; margin: 0 auto; }
.terms-content h2 { margin-top: 2.5rem; margin-bottom: 0.75rem; font-size: 1.3rem; color: var(--green-dark); }
.terms-content h3 { margin-top: 1.5rem; margin-bottom: 0.5rem; font-size: 1.05rem; }
.terms-content p, .terms-content li { font-size: 0.95rem; color: var(--text-mid); }
.terms-content ul { list-style: disc; padding-left: 1.5rem; margin-bottom: 1rem; }
.terms-content li { margin-bottom: 0.35rem; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { gap: 2.5rem; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 2rem; }
  .hero-buttons { justify-content: center; }
  .hero-image { order: -1; }
  .hero-badge { display: none; }
  .about-inner { grid-template-columns: 1fr; gap: 2rem; }
  .comparison-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .printing-benefits { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .section { padding: 3rem 0; }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .sustainability-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── UTILITIES ── */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; }
.green { color: var(--green-dark); }
.img-placeholder {
  background: var(--green-pale);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-mid);
  font-size: 0.85rem;
  font-weight: 500;
}