/* ============================================
   US OIL PRESS — Green & Gold Theme
   ============================================ */

:root {
    --green-900: #14532d;
    --green-800: #166534;
    --green-700: #15803d;
    --green-600: #16a34a;
    --green-500: #22c55e;
    --green-100: #dcfce7;
    --green-50: #f0fdf4;
    --gold-600: #ca8a04;
    --gold-500: #eab308;
    --gold-400: #facc15;
    --gold-300: #fde047;
    --gold-200: #fef08a;
    --gold-100: #fef9c3;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --white: #ffffff;
    --red-500: #ef4444;
    --red-100: #fee2e2;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--slate-800);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4 { font-family: 'Space Grotesk', 'Inter', sans-serif; line-height: 1.2; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 24px; border-radius: var(--radius-sm); font-weight: 600;
    font-size: 0.95rem; text-decoration: none; cursor: pointer;
    border: 2px solid transparent; transition: all 0.2s ease;
}
.btn-primary { background: var(--gold-500); color: var(--green-900); border-color: var(--gold-500); }
.btn-primary:hover { background: var(--gold-600); border-color: var(--gold-600); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }
.btn-nav { background: var(--gold-500); color: var(--green-900); padding: 10px 22px; font-size: 0.875rem; font-weight: 700; box-shadow: 0 2px 10px rgba(234,179,8,0.4); }
.btn-nav:hover { background: var(--gold-400); box-shadow: 0 4px 16px rgba(234,179,8,0.55); transform: translateY(-1px); }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-full { width: 100%; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }

/* ---- Navigation ---- */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(20, 83, 45, 0.95); backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--white); }
.logo-icon svg { width: 44px; height: 44px; }
.logo-name { display: block; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.15rem; letter-spacing: 0.05em; color: var(--white); }
.logo-tagline { display: block; font-size: 0.7rem; color: var(--gold-300); letter-spacing: 0.08em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a { color: var(--green-100); text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--gold-300); }
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.mobile-menu-btn span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: 0.3s; }

/* ---- Hero ---- */
.hero {
    position: relative; min-height: 80vh; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(160deg, #0a1f10 0%, #14532d 45%, #0f2d3f 100%);
    overflow: visible;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 1;
    background-image:
        radial-gradient(ellipse at 12% 65%, rgba(34,197,94,0.12) 0%, transparent 52%),
        radial-gradient(ellipse at 88% 15%, rgba(234,179,8,0.07) 0%, transparent 45%),
        repeating-linear-gradient(
            -55deg,
            transparent 0px, transparent 28px,
            rgba(255,255,255,0.022) 28px, rgba(255,255,255,0.022) 29px
        );
}
.hero-content {
    position: relative; z-index: 2; padding: 120px 24px 64px;
    display: flex; align-items: center; gap: 48px;
    flex-wrap: nowrap; width: 100%;
}
.hero-text { flex: 1 1 55%; min-width: 0; }
.hero-visual {
    flex: 0 1 40%; display: flex; align-items: center; justify-content: center;
    min-width: 0;
}
.hero-product-img {
    width: 100%; max-width: 420px; border-radius: 20px;
    transform: rotate(3deg);
    box-shadow:
        0 40px 80px rgba(0,0,0,0.55),
        0 0 0 1px rgba(255,255,255,0.07),
        0 0 60px rgba(234,179,8,0.08);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: block;
    object-fit: contain;
}
.hero-visual:hover .hero-product-img {
    transform: rotate(1deg) translateY(-6px);
    box-shadow:
        0 50px 100px rgba(0,0,0,0.6),
        0 0 0 1px rgba(255,255,255,0.1),
        0 0 80px rgba(234,179,8,0.12);
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px; background: rgba(234, 179, 8, 0.15);
    border: 1px solid rgba(234, 179, 8, 0.35); border-radius: 100px;
    color: var(--gold-300); font-size: 0.85rem; font-weight: 600; margin-bottom: 24px;
}
.hero h1 { font-size: clamp(1.8rem, 3.5vw, 3rem); font-weight: 800; color: var(--white); margin-bottom: 16px; }
.hero h1 span { color: var(--gold-400); }
.hero-sub { font-size: 1.1rem; color: var(--green-100); max-width: 520px; margin-bottom: 32px; line-height: 1.7; }
.hero-ctas { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stats { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.stat-num { display: block; font-family: 'Space Grotesk', sans-serif; font-size: 1.4rem; font-weight: 700; color: var(--gold-400); }
.stat-label { display: block; font-size: 0.8rem; color: var(--green-100); text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.8; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.2); }

/* ---- Trust Bar ---- */
.trust-bar { background: var(--green-800); padding: 18px 0; }
.trust-items { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; font-weight: 500; color: var(--green-100); }
.trust-icon { width: 22px; height: 22px; color: var(--gold-400); flex-shrink: 0; }

/* ---- Section Headers ---- */
.section-header { text-align: center; margin-bottom: 40px; }
.section-tag { display: inline-block; font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--green-700); margin-bottom: 12px; }
.section-header h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; color: var(--green-900); margin-bottom: 16px; }
.section-header p { font-size: 1.1rem; color: var(--slate-500); max-width: 600px; margin: 0 auto; }

/* ---- Products ---- */
.products { padding: 64px 0; background: var(--white); }
.product-detail-list { display: flex; flex-direction: column; gap: 48px; }

/* Individual Product Detail Card */
.product-detail {
    background: var(--white); border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg); padding: 32px;
    transition: all 0.3s ease;
    scroll-margin-top: 80px;
}
.product-top {
    display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
    margin-bottom: 32px;
}
.product-bottom {
    border-top: 1px solid var(--slate-100); padding-top: 24px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 24px 40px;
}
.product-bottom .product-detail-specs { grid-column: 1; }
.product-bottom .product-detail-seeds { grid-column: 2; grid-row: 1; }
.product-bottom .product-detail-ideal { grid-column: 1 / -1; }
.product-bottom .btn { grid-column: 1 / -1; justify-self: stretch; text-align: center; }

section[id] { scroll-margin-top: 80px; }
.product-detail:hover { box-shadow: var(--shadow-lg); }
.product-detail:nth-child(even) .product-top { direction: rtl; }
.product-detail:nth-child(even) .product-top > * { direction: ltr; }

.product-detail-gallery { display: flex; flex-direction: column; gap: 12px; align-self: start; }
.gallery-carousel {
    position: relative; display: flex; align-items: center; justify-content: center;
}
.product-detail-img {
    width: 100%; height: 360px; object-fit: contain;
    border-radius: var(--radius); background: var(--slate-50);
}
.gallery-arrow {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 44px; height: 44px; border-radius: 50%;
    background: rgba(20, 83, 45, 0.7); color: var(--white);
    border: none; font-size: 1.8rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s; z-index: 2; line-height: 1;
}
.gallery-arrow:hover { background: rgba(20, 83, 45, 0.95); }
.gallery-arrow-left { left: 8px; }
.gallery-arrow-right { right: 8px; }

.product-detail-info { display: flex; flex-direction: column; }
.product-detail-badge {
    display: inline-block; font-size: 0.75rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--green-700); margin-bottom: 8px;
}
.product-detail-badge.best-seller { color: var(--gold-600); }
.product-detail-badge.recommended { color: var(--green-600); }
.product-detail-info h3 {
    font-size: 1.6rem; font-weight: 800; color: var(--green-900);
    margin-bottom: 12px; line-height: 1.2;
}
.product-detail-price { margin-bottom: 16px; }
.price-main {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem; font-weight: 700; color: var(--green-900);
}
.price-note {
    display: block; font-size: 0.82rem; color: var(--gold-600);
    font-weight: 500; margin-top: 2px;
}
.product-detail-desc {
    color: var(--slate-600); font-size: 0.95rem; line-height: 1.7;
    margin-bottom: 20px;
}

.product-detail-specs { margin-bottom: 20px; }
.product-detail-specs h4,
.product-detail-seeds h4,
.product-detail-ideal h4 {
    font-size: 0.85rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.06em; color: var(--green-800); margin-bottom: 8px;
}
.spec-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.spec-table tr { border-bottom: 1px solid var(--slate-100); }
.spec-table td { padding: 6px 0; }
.spec-table td:first-child { font-weight: 600; color: var(--slate-600); width: 40%; }
.spec-table td:last-child { color: var(--slate-800); }

.product-detail-seeds { margin-bottom: 16px; }
.seed-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.seed-tags span {
    display: inline-block; padding: 4px 10px;
    background: var(--green-50); border: 1px solid var(--green-100);
    border-radius: 100px; font-size: 0.78rem; color: var(--green-800);
    font-weight: 500;
}

.product-detail-ideal { margin-bottom: 24px; }
.product-detail-ideal p { font-size: 0.88rem; color: var(--slate-500); line-height: 1.6; }

/* More Equipment CTA */
.more-equipment {
    text-align: center; padding: 40px; margin-top: 32px;
    background: var(--slate-50); border-radius: var(--radius-lg);
    border: 1px dashed var(--slate-300);
}
.more-equipment p { font-size: 1rem; color: var(--slate-600); max-width: 700px; margin: 0 auto; }
.more-equipment a { color: var(--green-700); font-weight: 600; text-decoration: underline; }

.us-ready-kit { margin-top: 48px; background: linear-gradient(135deg, var(--green-900), var(--green-800)); border-radius: var(--radius-lg); padding: 36px 40px; }
.kit-content { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.kit-content h3 { color: var(--white); font-size: 1.2rem; white-space: nowrap; }
.kit-content p { color: var(--green-100); font-size: 0.95rem; flex: 1; min-width: 300px; }
.kit-price { font-family: 'Space Grotesk', sans-serif; font-size: 1.3rem; font-weight: 700; color: var(--gold-400); white-space: nowrap; }

/* ---- Applications / Seeds ---- */
.applications { padding: 64px 0; background: var(--slate-50); }
.seed-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); gap: 14px; }
.seed-item {
    display: flex; flex-direction: column; align-items: center; gap: 10px;
    padding: 28px 16px; background: var(--white); border: 1px solid var(--slate-200);
    border-radius: var(--radius); font-size: 0.92rem; font-weight: 600;
    color: var(--slate-700); transition: all 0.2s; text-align: center;
}
.seed-item:hover { border-color: var(--green-500); transform: translateY(-3px); box-shadow: var(--shadow-md); background: var(--green-50); color: var(--green-800); }
.seed-item > :first-child { font-size: 2.4rem; line-height: 1; }

/* ---- Industries ---- */
.industries { padding: 64px 0; background: var(--slate-50); }
.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.industry-card {
    padding: 32px; background: var(--white); border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg); transition: all 0.3s; text-align: center;
}
.industry-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--green-500); }
.industry-icon { font-size: 2.5rem; margin-bottom: 16px; }
.industry-card h3 { font-size: 1.1rem; color: var(--green-900); margin-bottom: 10px; }
.industry-card p { font-size: 0.9rem; color: var(--slate-500); line-height: 1.6; }

/* ---- How It Works ---- */
.how-it-works { padding: 64px 0; background: var(--green-50); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.step { text-align: center; padding: 32px 20px; }
.step-num { font-family: 'Space Grotesk', sans-serif; font-size: 3rem; font-weight: 700; color: var(--gold-300); margin-bottom: 16px; }
.step h3 { font-size: 1.1rem; font-weight: 700; color: var(--green-900); margin-bottom: 12px; }
.step p { font-size: 0.9rem; color: var(--slate-500); line-height: 1.6; }

/* ---- Why Us / Comparison ---- */
.why-us { padding: 64px 0; background: var(--white); }
.comparison { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; max-width: 900px; margin: 0 auto; }
.compare-card { padding: 36px; border-radius: var(--radius-lg); border: 1px solid; }
.compare-them { background: var(--red-100); border-color: rgba(239, 68, 68, 0.2); }
.compare-us { background: var(--green-100); border-color: rgba(22, 163, 74, 0.3); }
.compare-card h3 { font-size: 1.2rem; margin-bottom: 20px; color: var(--green-900); }
.compare-card ul { list-style: none; }
.compare-card li { padding: 8px 0; font-size: 0.95rem; color: var(--slate-700); }

/* ---- FAQ ---- */
.faq { padding: 80px 0; background: var(--slate-50); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--slate-200); }
.faq-item summary {
    padding: 20px 0; font-weight: 600; font-size: 1.05rem; color: var(--green-900);
    cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between;
}
.faq-item summary::after { content: '+'; font-size: 1.4rem; font-weight: 300; color: var(--slate-400); transition: 0.2s; }
.faq-item[open] summary::after { content: '−'; color: var(--green-600); }
.faq-item p { padding: 0 0 20px; color: var(--slate-600); line-height: 1.7; }

/* ---- Testimonials ---- */
.testimonials { padding: 64px 0; background: var(--white); }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.testimonial-card {
    padding: 32px; background: var(--white); border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg); transition: all 0.3s;
}
.testimonial-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.testimonial-stars { color: var(--gold-500); font-size: 1.1rem; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-text { font-size: 0.95rem; color: var(--slate-600); line-height: 1.7; margin-bottom: 20px; font-style: italic; }
.testimonial-author strong { display: block; color: var(--green-900); font-size: 0.95rem; }
.testimonial-author span { font-size: 0.82rem; color: var(--slate-400); }

/* ---- CTA Section ---- */
.cta-section { padding: 40px 0; }
.cta-box {
    background: linear-gradient(135deg, var(--green-900) 0%, var(--green-800) 100%);
    border-radius: var(--radius-lg); padding: 60px 40px; text-align: center;
}
.cta-box h2 { font-size: 2.2rem; color: var(--white); margin-bottom: 16px; }
.cta-box p { color: var(--green-100); font-size: 1.1rem; margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }

/* ---- Contact ---- */
.contact { padding: 80px 0; background: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; max-width: 900px; margin: 0 auto; }
.contact-form { background: var(--white); padding: 36px; border-radius: var(--radius-lg); border: 1px solid var(--slate-200); box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--slate-700); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 16px; border: 1px solid var(--slate-200);
    border-radius: var(--radius-sm); font-family: inherit; font-size: 0.95rem;
    color: var(--slate-800); transition: border-color 0.2s; background: var(--white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--green-600); box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.1);
}
.contact-info { display: flex; flex-direction: column; gap: 28px; padding-top: 16px; }
.contact-method h4 { font-size: 1rem; color: var(--green-900); margin-bottom: 4px; }
.contact-method a, .contact-method p { color: var(--slate-500); text-decoration: none; font-size: 0.95rem; }
.contact-method a:hover { color: var(--green-700); }

/* ---- Footer ---- */
.footer { background: var(--green-900); color: var(--green-100); padding: 60px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-desc { margin-top: 16px; font-size: 0.9rem; line-height: 1.6; opacity: 0.8; }
.footer-links h4 { color: var(--gold-400); font-size: 0.9rem; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--green-100); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; opacity: 0.8; }
.footer-links a:hover { color: var(--gold-300); opacity: 1; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; font-size: 0.8rem; opacity: 0.6; }

/* ---- Animations ---- */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---- Back to Top ---- */
.back-to-top {
    position: fixed; bottom: 32px; right: 32px; z-index: 999;
    width: 48px; height: 48px; border-radius: 50%;
    background: var(--green-800); color: var(--white);
    border: none; font-size: 1.3rem; cursor: pointer;
    opacity: 0; visibility: hidden; transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--green-700); transform: translateY(-2px); }

/* ---- Responsive ---- */
@media (max-width: 968px) {
    .hero-content { flex-direction: column; gap: 32px; padding: 100px 0 48px; }
    .hero-text { flex: 1; }
    .hero-visual { width: 100%; justify-content: center; }
    .hero-product-img { max-width: 380px; transform: none; }
    .product-top { grid-template-columns: 1fr; gap: 24px; }
    .product-detail { padding: 24px; }
    .product-detail:nth-child(even) .product-top { direction: ltr; }
    .product-bottom { grid-template-columns: 1fr; }
    .comparison { grid-template-columns: 1fr; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .industry-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 768px) {
    .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: var(--green-900); flex-direction: column; padding: 24px; gap: 16px; border-bottom: 1px solid rgba(255,255,255,0.1); }
    .nav-links.active { display: flex; }
    .mobile-menu-btn { display: flex; }
    .hero-content { padding: 100px 0 40px; gap: 24px; }
    .hero-product-img { max-width: 300px; transform: none; border-radius: 14px; }
    .hero-stats { gap: 20px; }
    .stat-divider { display: none; }
    .steps { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .trust-items { gap: 20px; }
    .kit-content { flex-direction: column; text-align: center; }
    .kit-content p { min-width: 0; }
    .product-detail-img { height: 260px; }
    .gallery-arrow { width: 36px; height: 36px; font-size: 1.4rem; }
    .price-main { font-size: 1.6rem; }
    .seed-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
}