/* ============================================
   AVN AGRI PRODUCTS — Global Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
  --color-primary-deep: #14532d;
  --color-primary: #166534;
  --color-primary-mid: #22863a;
  --color-primary-light: #4ade80;
  --color-primary-pale: #dcfce7;
  --color-accent: #c8963e;
  --color-accent-light: #dbb06b;
  --color-accent-pale: #fef3c7;
  --color-dark: #111810;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-bg: #f8faf6;
  --color-white: #ffffff;
  --color-card: rgba(255,255,255,0.85);
  --color-border: #e2e8e0;
  --color-overlay: rgba(17,24,16,0.65);
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 30px rgba(74,222,128,0.15);
  --transition: 0.35s cubic-bezier(0.4,0,0.2,1);
  --max-width: 1240px;
}

/* --- Reset & Base --- */
*, *::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(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button { cursor: pointer; border: none; font-family: var(--font-body); }
input, textarea, select { font-family: var(--font-body); }

/* --- Typography --- */
h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; color: var(--color-dark); }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
p { margin-bottom: 1rem; }

/* --- Utility --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.82rem; font-weight: 600; text-transform: uppercase; letter-spacing: 2.5px;
  color: var(--color-primary); margin-bottom: 14px;
}
.section-label::before {
  content: ''; width: 28px; height: 2px; background: var(--color-accent); border-radius: 2px;
}
.section-title { margin-bottom: 18px; }
.section-subtitle { color: var(--color-text-light); font-size: 1.08rem; max-width: 620px; margin-bottom: 48px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 50px; font-weight: 600; font-size: 0.95rem;
  transition: var(--transition); position: relative; overflow: hidden;
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-mid));
  color: var(--color-white); box-shadow: 0 4px 15px rgba(22,101,52,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(22,101,52,0.4); }
.btn-secondary {
  background: transparent; color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-secondary:hover { background: rgba(255,255,255,0.12); border-color: var(--color-white); }
.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: var(--color-white); box-shadow: 0 4px 15px rgba(200,150,62,0.3);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(200,150,62,0.4); }
.btn-outline {
  background: transparent; color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); }
.btn svg, .btn i { font-size: 1.1em; }

/* --- Navigation --- */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  padding: 18px 0; transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,0.92); backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm); padding: 10px 0;
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo {
  font-family: var(--font-heading); font-size: 1.55rem; font-weight: 800;
  color: var(--color-white); display: flex; align-items: center; gap: 10px;
}
.nav-logo .logo-icon {
  width: 40px; height: 40px; background: var(--color-primary-light);
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: var(--color-primary-deep);
}
.navbar.scrolled .nav-logo { color: var(--color-primary-deep); }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 8px 18px; border-radius: 50px; font-weight: 500; font-size: 0.92rem;
  color: rgba(255,255,255,0.85); transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  background: rgba(255,255,255,0.15); color: var(--color-white);
}
.navbar.scrolled .nav-links a { color: var(--color-text); }
.navbar.scrolled .nav-links a:hover, .navbar.scrolled .nav-links a.active {
  background: var(--color-primary-pale); color: var(--color-primary);
}
.nav-cta {
  padding: 10px 24px !important; background: var(--color-accent) !important;
  color: var(--color-white) !important; border-radius: 50px !important; font-weight: 600 !important;
}
.nav-cta:hover { background: var(--color-accent-light) !important; transform: translateY(-1px); }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; padding: 8px; cursor: pointer; z-index: 1001; }
.hamburger span { width: 26px; height: 2.5px; background: var(--color-white); border-radius: 3px; transition: var(--transition); }
.navbar.scrolled .hamburger span { background: var(--color-dark); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Page Hero --- */
.page-hero {
  position: relative; min-height: 380px; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--color-dark), var(--color-primary-deep) 60%, var(--color-primary));
  overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(74,222,128,0.08) 0%, transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(200,150,62,0.06) 0%, transparent 60%);
}
.page-hero .container { position: relative; z-index: 2; padding-top: 100px; padding-bottom: 60px; }
.page-hero h1 { color: var(--color-white); margin-bottom: 16px; }
.page-hero p { color: rgba(255,255,255,0.8); font-size: 1.12rem; max-width: 580px; }
.breadcrumb { display: flex; gap: 8px; align-items: center; margin-bottom: 18px; font-size: 0.88rem; color: rgba(255,255,255,0.6); }
.breadcrumb a { color: var(--color-primary-light); }
.breadcrumb a:hover { color: var(--color-white); }

/* --- Cards --- */
.glass-card {
  background: var(--color-card); backdrop-filter: blur(10px);
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 36px; transition: var(--transition);
}
.glass-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--color-primary-light); }
.card-icon {
  width: 60px; height: 60px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary-pale), var(--color-primary-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--color-primary-deep); margin-bottom: 20px;
}

/* --- Image Placeholder --- */
.img-placeholder {
  background: linear-gradient(135deg, var(--color-primary-pale) 0%, #e8f5e9 50%, var(--color-border) 100%);
  border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 10px; color: var(--color-text-light); font-size: 0.9rem;
  min-height: 280px; border: 2px dashed var(--color-border); position: relative; overflow: hidden;
}
.img-placeholder svg { width: 48px; height: 48px; opacity: 0.4; }
.img-placeholder span { opacity: 0.6; font-weight: 500; }

/* --- Footer --- */
.footer {
  background: var(--color-dark); color: rgba(255,255,255,0.7); padding: 80px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 48px; margin-bottom: 60px;
}
.footer h4 { color: var(--color-white); font-size: 1.1rem; margin-bottom: 20px; }
.footer-brand p { font-size: 0.92rem; line-height: 1.8; margin-top: 16px; }
.footer-links a {
  display: block; padding: 6px 0; font-size: 0.92rem; color: rgba(255,255,255,0.6);
}
.footer-links a:hover { color: var(--color-primary-light); padding-left: 6px; }
.footer-contact-item { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; font-size: 0.92rem; }
.footer-contact-item svg { width: 20px; height: 20px; color: var(--color-primary-light); flex-shrink: 0; margin-top: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08); padding: 24px 0;
  display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem;
}

/* --- WhatsApp Float --- */
.whatsapp-float {
  position: fixed; bottom: 28px; right: 28px; z-index: 999;
  width: 60px; height: 60px; border-radius: 50%;
  background: #25d366; color: white; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4); transition: var(--transition);
  animation: pulse-wa 2s infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(37,211,102,0.5); }
.whatsapp-float svg { width: 30px; height: 30px; }
@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 4px 30px rgba(37,211,102,0.6); }
}

/* --- Scroll Animations --- */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary) 60%, var(--color-primary-mid));
  padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(74,222,128,0.1) 0%, transparent 50%);
}
.cta-banner h2 { color: var(--color-white); margin-bottom: 16px; position: relative; }
.cta-banner p { color: rgba(255,255,255,0.8); font-size: 1.08rem; max-width: 550px; margin: 0 auto 32px; position: relative; }
.cta-banner .btn { position: relative; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: var(--color-dark); flex-direction: column; padding: 80px 30px 30px;
    gap: 4px; transition: var(--transition); align-items: stretch;
  }
  .nav-links.open { right: 0; }
  .nav-links a { color: rgba(255,255,255,0.8) !important; padding: 14px 18px !important; border-radius: var(--radius-sm) !important; }
  .nav-links a:hover, .nav-links a.active { background: rgba(255,255,255,0.08) !important; color: white !important; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .page-hero { min-height: 300px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .glass-card { padding: 24px; }
  .btn { padding: 12px 24px; font-size: 0.9rem; }
}