/* =====================================================================
   Kartanusa — Company Profile
   Clean, modern, professional design inspired by international
   fertilizer corporate sites (compo-expert.com, haifa-group.com)
   ===================================================================== */

/* --- CSS Variables --- */
:root {
  --green-primary: #0E7C41;
  --green-dark: #0B3D24;
  --green-accent: #139E55;
  --green-light: #4FCB87;
  --footer-bg: #0B2E1C;
  --bg-light: #F3F6F4;
  --text-dark: #1F2A24;
  --text-muted: #55655B;
  --border: #DDE4DF;
  --white: #FFFFFF;
  --max-width: 1200px;
  --radius: 4px;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --transition: 0.25s ease;
}

/* --- Reset & Base --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Open Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background: var(--white);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.skip-link {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px;
  overflow: hidden; z-index: -1;
}

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

/* --- Typography --- */
h1, h2, h3, .font-montserrat {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--green-dark);
}
h2 { font-size: clamp(1.75rem, 2.5vw, 2.5rem); }
.section-kicker {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-primary);
  display: block;
  margin-bottom: 8px;
}
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 { margin-bottom: 12px; }
.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--green-primary);
  color: var(--white);
}
.btn-primary:hover {
  background: #0c6a35;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--green-primary);
  border: 1.5px solid var(--green-primary);
}
.btn-outline:hover {
  background: var(--green-primary);
  color: var(--white);
}
.btn-white {
  background: var(--white);
  color: var(--green-dark);
}
.btn-white:hover {
  background: #f4f7f4;
  transform: translateY(-1px);
}
.btn-small { padding: 8px 16px; font-size: 0.8rem; }
.btn-full { width: 100%; }

/* --- Top Bar --- */
.top-bar {
  background: #F8FAF8;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 8px 24px;
}
.top-left { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text-dark); }
.top-right { display: flex; align-items: center; gap: 20px; font-size: 0.8rem; }
.top-link {
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: color var(--transition);
}
.top-link:hover { color: var(--green-primary); }

/* --- Header --- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  background: rgba(255,255,255,0.95);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-text strong {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: var(--green-dark);
  display: block;
  white-space: nowrap;
}
.logo-text span {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 2px;
  display: block;
  white-space: nowrap;
}
/* Nav desktop */
.main-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  justify-content: center;
}
.main-nav .nav-list {
  display: flex;
  gap: 0 30px;
  list-style: none;
  align-items: center;
  margin: 0;
  padding: 0;
}
.main-nav a {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 10px 0;
  transition: color var(--transition);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--green-dark);
  border-bottom-color: var(--green-accent);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
/* Mobile toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  margin: 5.5px 0;
  transition: transform var(--transition), opacity var(--transition);
}

/* --- Hero --- */
.hero {
  position: relative;
  background: var(--green-dark);
  overflow: hidden;
  padding: 72px 0 100px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: 50% 55%;
  opacity: 0.45;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(8, 38, 22, 0.55);
}
.hero .container {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  padding: 0 24px;
}
.hero-content { max-width: 700px; }
.hero-kicker {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-light);
  display: block;
  margin-bottom: 16px;
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  margin-bottom: 20px;
  line-height: 1.05;
}
.hero-desc {
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  color: rgba(255,255,255,0.92);
  margin-bottom: 32px;
  line-height: 1.4;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* --- Sections --- */
.section { padding: 96px 0 80px; }
.section-about { padding-top: 96px; }
.bg-light { background: var(--bg-light); }
.bg-dark { background: var(--green-dark); color: var(--white); }
.bg-dark h2, .bg-dark .section-kicker, .bg-dark p { color: inherit; }
.bg-dark .section-kicker { color: var(--green-light); }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-text p {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  max-width: 520px;
}
.about-visual { position: relative; }
.about-image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.about-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
}
.about-stats {
  position: absolute;
  bottom: 0; left: 0;
  background: var(--white);
  padding: 24px 32px;
  border-radius: 0 var(--radius) 0 0;
  box-shadow: var(--shadow);
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
}
.stat { margin-bottom: 14px; }
.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--green-primary);
  display: block;
}
.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Products */
.product-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
}
.filter-btn {
  background: transparent;
  border: none;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 10px 0;
  cursor: pointer;
  position: relative;
  transition: color var(--transition);
}
.filter-btn::after {
  content: '';
  position: absolute;
  bottom: -14px; left: 0; right: 0;
  height: 3px;
  background: var(--green-accent);
  opacity: 0;
  transition: opacity var(--transition);
}
.filter-btn:hover { color: var(--green-primary); }
.filter-btn.active {
  color: var(--green-dark);
}
.filter-btn.active::after { opacity: 1; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}
.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--green-primary);
}
.product-image {
  position: relative;
  height: 200px;
  background: #F2F8F4;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid #EEF2EF;
}
.product-image img {
  width: 100%; height: 100%; object-fit: cover; opacity: 1;
}
.product-image .placeholder {
  font-size: 0.85rem; color: var(--text-muted); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.product-badge {
  position: absolute; top: 12px; left: 12px;
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; padding: 3px 10px; border-radius: 2px;
}
.product-badge.npk { background: #E7F3EC; color: var(--green-primary); border: 1px solid var(--green-primary); }
.product-badge.crf { background: var(--green-primary); color: var(--white); }
.product-content {
  padding: 20px 22px 24px;
  display: flex; flex-direction: column; gap: 8px; flex: 1;
}
.product-content h3 {
  font-size: 1.15rem; color: var(--green-dark);
  line-height: 1.3;
}
.product-formula {
  font-size: 0.9rem; color: var(--text-muted);
}
.product-benefit {
  font-size: 0.92rem; color: #1F2A24; margin-top: auto;
}
.product-readmore {
  margin-top: auto;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-primary);
  padding-top: 6px;
  display: inline-block;
}

/* CRF */
.crf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.crf-text p {
  font-size: 1.05rem; color: var(--text-muted); margin-bottom: 20px;
  max-width: 520px;
}
.benefit-list {
  list-style: none;
  margin-top: 20px;
}
.benefit-list li {
  font-size: 1rem; color: var(--text-dark);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.benefit-list li:last-child { border-bottom: none; }
.benefit-list li strong { color: var(--green-dark); }
.crf-visual { position: relative; }
.crf-diagram {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  padding: 24px;
  box-shadow: var(--shadow);
}
.diagram-legend {
  display: flex; flex-wrap: wrap; gap: 16px 28px;
  margin-top: 16px; font-size: 0.9rem; color: var(--text-muted);
}
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.dot-a { background: #9AA09B; }
.dot-b { background: var(--green-primary); }
.dot-c { background: var(--green-accent); }

/* Stats */
.section-stats { padding: 80px 0; }
.stats-visual {
  margin-bottom: 40px;
  text-align: center;
}
.stats-visual img {
  max-width: 100%;
  height: auto;
  max-height: 300px;
  opacity: 0.9;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px 32px;
  text-align: center;
}
.stat-card {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.stat-icon { font-size: 2.5rem; }
.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 3rem;
  color: var(--green-light);
}
.stat-label { font-size: 0.95rem; color: #C9D9CF; }

/* CTA */
.section-cta { padding: 72px 0; }
.cta-card {
  background: var(--green-primary);
  border-radius: var(--radius);
  padding: 56px 48px;
  color: var(--white);
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
}
.cta-visual {
  flex: 1 1 260px;
  max-width: 320px;
}
.cta-visual img {
  width: 100%;
  height: auto;
  display: block;
  opacity: 0.95;
}
.cta-text {
  flex: 1 1 340px;
  text-align: left;
}
.cta-text h2 { color: var(--white); margin-bottom: 12px; }
.cta-text p { color: rgba(255,255,255,0.9); margin-bottom: 28px; font-size: 1.05rem; }
.cta-card .btn-white {
  margin-left: 0;
}

/* Contact */
.section-contact { padding: 96px 0 80px; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.contact-info { display: flex; flex-direction: column; gap: 22px; }
.contact-card {
  display: flex; gap: 14px; align-items: flex-start;
}
.contact-label {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--green-primary);
  min-width: 110px;
}
.contact-value { font-size: 0.95rem; color: var(--text-dark); line-height: 1.5; }
.contact-value a { color: var(--green-primary); }
.contact-form-wrap { background: var(--white); padding: 32px; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.85rem; font-weight: 600; color: var(--text-dark);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.form-group input,
.form-group textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border);
  border-radius: var(--radius); font-family: inherit; font-size: 0.95rem;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--green-primary);
}
.form-note {
  font-size: 0.85rem; color: var(--text-muted); margin-top: 12px;
}

/* Footer */
.site-footer {
  background: var(--footer-bg);
  color: #D4E0D8;
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px 48px;
  margin-bottom: 40px;
}
.footer-logo {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 18px;
}
.footer-logo strong {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--white);
  letter-spacing: -0.01em;
}
.footer-logo span {
  font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: #9FB5A8;
}
.footer-desc {
  font-size: 0.95rem; color: #B9CBBE;
  max-width: 320px; margin-top: 4px; line-height: 1.6;
}
.footer-social {
  display: flex; gap: 10px; margin-top: 22px;
}
.social-link {
  width: 44px; height: 44px;
  border: 1.5px solid #4C7A62;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  transition: all var(--transition);
}
.social-link:hover {
  background: var(--green-primary);
  border-color: var(--green-primary);
  color: var(--white);
}
.footer-col-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--white);
  margin-bottom: 14px; display: block;
}
.footer-col a {
  display: block;
  font-size: 0.95rem; color: #B9CBBE;
  padding: 6px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--green-light); }
.footer-bottom {
  display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  padding-top: 24px; border-top: 1px solid #1F3A2E;
  font-size: 0.85rem; color: #9FB5A8;
}
.footer-bottom a { color: #B9CBBE; }
.footer-bottom a:hover { color: var(--green-light); }

/* Floating WhatsApp */
.float-wa {
  position: fixed; right: 24px; bottom: 24px;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--green-primary);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  z-index: 1000;
  transition: transform var(--transition), background var(--transition);
}
.float-wa:hover {
  background: #0c6a35;
  transform: scale(1.05);
}

/* Responsive */
@media (max-width: 900px) {
  .nav-list.nav-open {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px 24px;
    gap: 0;
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow);
    z-index: 50;
  }
  .nav-list.nav-open li { width: 100%; }
  .nav-list.nav-open a {
    display: block;
    padding: 12px 0;
    border-bottom: none;
    color: var(--text-dark);
  }
  .nav-list.nav-open a.active { border-bottom-color: var(--green-accent); }
  .nav-actions-mobile {
    display: flex;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
  }
  .about-grid, .crf-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 48px;
  }
  .nav-list { display: none; }
  .nav-actions { display: none; }
  .nav-toggle { display: block; }
  .hero { padding: 56px 0 80px; }
  .section { padding: 72px 0 60px; }
  .cta-card { padding: 40px 28px; }
  .contact-form-wrap { padding: 24px; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .top-bar .container { flex-direction: column; gap: 10px; align-items: flex-start; }
  .top-right { width: 100%; justify-content: flex-start; gap: 16px; }
}