:root {
            --forest-900: #0D2818;
            --forest-800: #14332A;
            --forest-700: #1B5E3A;
            --forest-600: #22754A;
            --forest-500: #2D9A5F;
            --forest-100: #E8F5EE;
            --gold-600: #A67C28;
            --gold-500: #C6973C;
            --gold-400: #D4AD5A;
            --gold-100: #FDF6E8;
            --sand: #FAF8F4;
            --sand-dark: #F0EBE3;
            --charcoal: #1E1E1E;
            --gray-700: #404040;
            --gray-500: #6B6B6B;
            --gray-300: #B5B0A8;
            --gray-200: #DDD9D2;
            --white: #FFFFFF;
            --font-display: 'Playfair Display', Georgia, serif;
            --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
            --radius: 10px;
            --radius-lg: 16px;
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::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(--charcoal);
            background: var(--sand);
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* ═══════════════════════════════
           NAV — slim top bar
        ═══════════════════════════════ */
        .nav {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(250, 248, 244, 0.9);
            backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(20, 51, 42, 0.06);
            transition: var(--transition);
        }
        .nav.scrolled { box-shadow: 0 1px 12px rgba(20, 51, 42, 0.08); }
        .nav-inner {
            max-width: 1140px; margin: 0 auto; padding: 0 2rem;
            display: flex; align-items: center; justify-content: space-between; height: 64px;
        }
        .nav-logo {
            font-family: var(--font-display); font-size: 1.35rem; font-weight: 700;
            color: var(--forest-800); text-decoration: none;
        }
        .nav-logo span { color: var(--gold-500); font-style: italic; }
        .nav-links { display: flex; gap: 2.2rem; list-style: none; }
        .nav-links a {
            text-decoration: none; color: var(--gray-500); font-size: 0.88rem;
            font-weight: 600; transition: var(--transition);
        }
        .nav-links a:hover { color: var(--forest-700); }
        .nav-cta {
            background: var(--forest-700); color: var(--white) !important;
            padding: 0.45rem 1.2rem; border-radius: 100px; font-size: 0.82rem !important;
        }
        .nav-cta:hover { background: var(--forest-600) !important; }
        .nav-hamburger {
            display: none; flex-direction: column; gap: 5px;
            cursor: pointer; padding: 8px; background: none; border: none;
        }
        .nav-hamburger span {
            width: 22px; height: 2px; background: var(--forest-800);
            transition: var(--transition); border-radius: 2px;
        }

        /* ═══════════════════════════════
           HERO — centered editorial
        ═══════════════════════════════ */
        .hero {
            min-height: 100vh; display: flex; flex-direction: column;
            align-items: center; justify-content: center;
            text-align: center; position: relative; overflow: hidden;
            background: var(--forest-900);
            padding: 7rem 2rem 4rem;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background:
                radial-gradient(circle 500px at 50% 40%, rgba(45, 154, 95, 0.15) 0%, transparent 70%),
                radial-gradient(circle 400px at 80% 70%, rgba(198, 151, 60, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero::after {
            content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 200px;
            background: linear-gradient(transparent, rgba(13, 40, 24, 0.6));
            pointer-events: none;
        }
        .hero-inner { position: relative; z-index: 2; max-width: 720px; }
        .hero-overtitle {
            font-size: 0.78rem; font-weight: 700; letter-spacing: 0.18em;
            text-transform: uppercase; color: var(--gold-400); margin-bottom: 1.5rem;
        }
        .hero h1 {
            font-family: var(--font-display); font-size: clamp(2.6rem, 5.5vw, 4rem);
            color: var(--white); line-height: 1.12; margin-bottom: 1.5rem;
            letter-spacing: -0.02em; font-weight: 700;
        }
        .hero h1 em { font-style: italic; color: var(--gold-400); }
        .hero-desc {
            font-size: 1.15rem; color: rgba(255,255,255,0.65);
            line-height: 1.8; margin-bottom: 2.5rem; max-width: 560px; margin-inline: auto;
        }
        .hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

        .btn {
            display: inline-flex; align-items: center; gap: 0.5rem;
            padding: 0.85rem 2rem; border-radius: 100px;
            font-family: var(--font-body); font-size: 0.95rem; font-weight: 700;
            text-decoration: none; transition: var(--transition); cursor: pointer;
            border: none;
        }
        .btn-gold { background: var(--gold-500); color: var(--white); }
        .btn-gold:hover { background: var(--gold-400); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(198, 151, 60, 0.3); }
        .btn-ghost { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.25); }
        .btn-ghost:hover { border-color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.06); }

        /* stat strip below hero */
        .stat-strip {
            position: relative; z-index: 3;
            background: var(--white); max-width: 800px; margin: -2rem auto 0;
            border-radius: var(--radius-lg); box-shadow: 0 8px 40px rgba(13, 40, 24, 0.12);
            display: grid; grid-template-columns: repeat(3, 1fr);
            overflow: hidden;
        }
        .stat-item {
            text-align: center; padding: 1.8rem 1rem;
            border-right: 1px solid var(--gray-200);
        }
        .stat-item:last-child { border-right: none; }
        .stat-num {
            font-family: var(--font-display); font-size: 2rem; font-weight: 700;
            color: var(--forest-700); display: block; line-height: 1.1;
        }
        .stat-label {
            font-size: 0.82rem; color: var(--gray-500); font-weight: 600;
            text-transform: uppercase; letter-spacing: 0.06em; margin-top: 0.3rem;
        }

        /* ═══════════════════════════════
           SECTIONS COMMON
        ═══════════════════════════════ */
        .section { padding: 6rem 2rem; }
        .container { max-width: 1140px; margin: 0 auto; }
        .tag {
            display: inline-block; font-size: 0.72rem; font-weight: 700;
            letter-spacing: 0.14em; text-transform: uppercase; color: var(--forest-600);
            border: 1.5px solid var(--forest-600); padding: 0.3rem 0.9rem;
            border-radius: 100px; margin-bottom: 1.2rem;
        }
        .section-title {
            font-family: var(--font-display); font-size: clamp(1.8rem, 3.2vw, 2.5rem);
            color: var(--forest-900); line-height: 1.2; margin-bottom: 1rem;
            letter-spacing: -0.01em; font-weight: 700;
        }
        .section-sub { font-size: 1.05rem; color: var(--gray-500); max-width: 560px; line-height: 1.8; }

        .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
        .reveal.visible { opacity: 1; transform: translateY(0); }

        /* ═══════════════════════════════
           KNOWLEDGE — alternating rows
        ═══════════════════════════════ */
        .knowledge { background: var(--white); }
        .know-block {
            display: grid; grid-template-columns: 1fr 1fr; gap: 4rem;
            align-items: center; padding: 3rem 0;
            border-bottom: 1px solid var(--gray-200);
        }
        .know-block:last-child { border-bottom: none; }
        .know-block.reverse .know-text { order: 2; }
        .know-block.reverse .know-visual { order: 1; }

        .know-text h3 {
            font-family: var(--font-display); font-size: 1.5rem; font-weight: 700;
            color: var(--forest-900); margin-bottom: 0.8rem; line-height: 1.3;
        }
        .know-text p { color: var(--gray-500); line-height: 1.85; }

        .know-visual-card {
            background: var(--sand); border-radius: var(--radius-lg);
            padding: 2rem; border: 1px solid var(--gray-200);
        }
        .know-visual-card .kv-row {
            display: flex; gap: 0.8rem; align-items: flex-start;
            padding: 0.8rem 0; border-bottom: 1px solid var(--gray-200);
        }
        .know-visual-card .kv-row:last-child { border-bottom: none; }
        .kv-icon {
            flex-shrink: 0; width: 38px; height: 38px; border-radius: 10px;
            display: flex; align-items: center; justify-content: center; font-size: 1rem;
        }
        .kv-icon.g { background: var(--forest-100); }
        .kv-icon.y { background: #FEF3C7; }
        .kv-icon.r { background: #FEE2E2; }
        .kv-icon.p { background: #F3E8FF; }
        .kv-row h4 { font-size: 0.88rem; font-weight: 700; color: var(--forest-900); margin-bottom: 0.15rem; }
        .kv-row p { font-size: 0.82rem; color: var(--gray-500); line-height: 1.55; }

        /* ═══════════════════════════════
           PRODUCT — feature grid + side panel
        ═══════════════════════════════ */
        .product { background: var(--sand); }
        .prod-layout {
            display: grid; grid-template-columns: 5fr 4fr; gap: 3rem;
            margin-top: 3rem; align-items: start;
        }
        .feat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
        .feat-card {
            background: var(--white); border-radius: var(--radius);
            padding: 1.8rem; border: 1px solid var(--gray-200);
            transition: var(--transition);
        }
        .feat-card:hover { border-color: var(--forest-500); box-shadow: 0 4px 20px rgba(20, 51, 42, 0.08); transform: translateY(-3px); }
        .feat-card-icon {
            width: 42px; height: 42px; border-radius: 12px; background: var(--forest-100);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.15rem; margin-bottom: 1rem;
        }
        .feat-card h4 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; color: var(--forest-900); margin-bottom: 0.4rem; }
        .feat-card p { font-size: 0.85rem; color: var(--gray-500); line-height: 1.65; }

        .prod-side {
            background: var(--forest-800); border-radius: var(--radius-lg);
            padding: 2.5rem; color: var(--white);
        }
        .prod-side h3 {
            font-family: var(--font-display); font-size: 1.4rem; font-weight: 700;
            margin-bottom: 1.5rem; line-height: 1.3;
        }
        .use-case {
            padding: 1rem 0; border-top: 1px solid rgba(255,255,255,0.1);
        }
        .use-case:first-of-type { border-top: none; }
        .use-case-tag {
            display: inline-block; font-size: 0.68rem; font-weight: 700;
            text-transform: uppercase; letter-spacing: 0.1em;
            padding: 0.2rem 0.6rem; border-radius: 100px; margin-bottom: 0.4rem;
        }
        .use-case-tag.uc-green { background: rgba(45, 154, 95, 0.2); color: #6EE7A0; }
        .use-case-tag.uc-gold { background: rgba(198, 151, 60, 0.2); color: var(--gold-400); }
        .use-case-tag.uc-purple { background: rgba(139, 92, 246, 0.2); color: #C4B5FD; }
        .use-case-tag.uc-red { background: rgba(239, 68, 68, 0.2); color: #FCA5A5; }
        .use-case h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.2rem; }
        .use-case p { font-size: 0.82rem; color: rgba(255,255,255,0.55); line-height: 1.6; }

        .prod-banner {
            margin-top: 3rem; background: linear-gradient(135deg, var(--forest-700), var(--forest-600));
            border-radius: var(--radius-lg); padding: 2.2rem 2.5rem;
            display: flex; align-items: center; justify-content: space-between; gap: 2rem;
        }
        .prod-banner h3 { font-family: var(--font-display); font-size: 1.25rem; color: var(--white); margin-bottom: 0.3rem; }
        .prod-banner p { font-size: 0.9rem; color: rgba(255,255,255,0.6); }
        .prod-banner .btn { flex-shrink: 0; }

        /* ═══════════════════════════════
           FAQ — two-column
        ═══════════════════════════════ */
        .faq { background: var(--white); }
        .faq-header { margin-bottom: 3rem; }
        .faq-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 0 3rem; }
        .faq-item { border-bottom: 1px solid var(--gray-200); }
        .faq-question {
            width: 100%; background: none; border: none; padding: 1.3rem 0;
            display: flex; align-items: center; justify-content: space-between; gap: 1rem;
            cursor: pointer; text-align: left; font-family: var(--font-body);
            font-size: 0.98rem; font-weight: 700; color: var(--forest-900); transition: var(--transition);
        }
        .faq-question:hover { color: var(--forest-600); }
        .faq-chevron {
            flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
            background: var(--forest-100); display: flex; align-items: center;
            justify-content: center; transition: var(--transition);
        }
        .faq-chevron svg { width: 14px; height: 14px; stroke: var(--forest-700); transition: var(--transition); }
        .faq-item.active .faq-chevron { background: var(--forest-700); transform: rotate(180deg); }
        .faq-item.active .faq-chevron svg { stroke: var(--white); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
        .faq-answer-inner { padding: 0 0 1.3rem; color: var(--gray-500); line-height: 1.8; font-size: 0.92rem; }
        .faq-answer-inner a { color: var(--forest-600); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
        .faq-answer-inner a:hover { color: var(--forest-700); }
        .faq-answer-inner ul { margin: 0.6rem 0; padding-left: 1.3rem; }
        .faq-answer-inner li { margin-bottom: 0.35rem; }

        /* ═══════════════════════════════
           CONTACT — dark section with offset card
        ═══════════════════════════════ */
        .contact { background: var(--forest-900); color: var(--white); position: relative; overflow: hidden; }
        .contact::before {
            content: ''; position: absolute; top: -100px; right: -100px;
            width: 400px; height: 400px; border-radius: 50%;
            background: rgba(45, 154, 95, 0.08); pointer-events: none;
        }
        .contact-layout {
            display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
        }
        .contact-left h2 {
            font-family: var(--font-display); font-size: clamp(2rem, 3vw, 2.6rem);
            line-height: 1.2; margin-bottom: 1rem; font-weight: 700;
        }
        .contact-left h2 em { font-style: italic; color: var(--gold-400); }
        .contact-left p { color: rgba(255,255,255,0.55); font-size: 1rem; line-height: 1.8; max-width: 420px; }
        .contact-note {
            margin-top: 2rem; padding: 1.2rem 1.5rem;
            background: rgba(255,255,255,0.05); border-radius: var(--radius);
            border-left: 3px solid var(--gold-500);
        }
        .contact-note p { font-size: 0.88rem; color: rgba(255,255,255,0.5); }
        .contact-note strong { color: rgba(255,255,255,0.8); }

        .contact-card {
            background: var(--white); border-radius: var(--radius-lg);
            padding: 2.5rem; color: var(--charcoal);
        }
        .contact-card h3 {
            font-family: var(--font-display); font-size: 1.3rem; font-weight: 700;
            color: var(--forest-900); margin-bottom: 1.5rem;
        }
        .form-group { margin-bottom: 1.1rem; }
        .form-group label { display: block; font-size: 0.82rem; font-weight: 700; color: var(--gray-700); margin-bottom: 0.35rem; }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%; padding: 0.75rem 1rem; border: 1.5px solid var(--gray-200);
            border-radius: var(--radius); font-family: var(--font-body); font-size: 0.92rem;
            color: var(--charcoal); background: var(--sand); transition: var(--transition); outline: none;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--forest-600); box-shadow: 0 0 0 3px rgba(34, 117, 74, 0.1); background: var(--white);
        }
        .form-group textarea { min-height: 110px; resize: vertical; }
        .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
        .btn-submit {
            width: 100%; padding: 0.9rem; margin-top: 0.3rem;
            background: var(--forest-700); color: var(--white); border: none;
            border-radius: 100px; font-family: var(--font-body); font-size: 0.95rem;
            font-weight: 700; cursor: pointer; transition: var(--transition);
        }
        .btn-submit:hover { background: var(--forest-600); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(27, 94, 58, 0.3); }

        /* ═══════════════════════════════
           FOOTER
        ═══════════════════════════════ */
        .footer { background: var(--forest-900); border-top: 1px solid rgba(255,255,255,0.06); padding: 2rem 2rem; }
        .footer-inner {
            max-width: 1140px; margin: 0 auto; display: flex;
            align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem;
        }
        .footer-logo { font-family: var(--font-display); font-size: 1.15rem; color: var(--white); font-weight: 700; }
        .footer-logo span { color: var(--gold-400); font-style: italic; }
        .footer p { font-size: 0.82rem; color: rgba(255,255,255,0.35); }
        .footer a { color: rgba(255,255,255,0.5); text-decoration: none; transition: var(--transition); }
        .footer a:hover { color: var(--white); }

        /* ═══════════════════════════════
           RESPONSIVE
        ═══════════════════════════════ */
        @keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

        @media (max-width: 968px) {
            .know-block { grid-template-columns: 1fr; gap: 2rem; }
            .know-block.reverse .know-text { order: 1; }
            .know-block.reverse .know-visual { order: 2; }
            .prod-layout { grid-template-columns: 1fr; }
            .feat-grid { grid-template-columns: 1fr 1fr; }
            .contact-layout { grid-template-columns: 1fr; gap: 2.5rem; }
            .faq-columns { grid-template-columns: 1fr; gap: 0; }
            .prod-banner { flex-direction: column; text-align: center; padding: 2rem; }
            .stat-strip { grid-template-columns: repeat(3, 1fr); margin: -1.5rem 1rem 0; }
        }
        @media (max-width: 640px) {
            .nav-links { display: none; }
            .nav-links.open {
                display: flex; flex-direction: column; position: absolute;
                top: 64px; left: 0; right: 0; background: rgba(250, 248, 244, 0.98);
                backdrop-filter: blur(16px); padding: 1.2rem 2rem; gap: 0.8rem;
                border-bottom: 1px solid var(--gray-200); box-shadow: 0 1px 12px rgba(0,0,0,0.05);
            }
            .nav-hamburger { display: flex; }
            .section { padding: 4rem 1.25rem; }
            .hero { padding: 6rem 1.25rem 3rem; }
            .hero-actions { flex-direction: column; }
            .btn { justify-content: center; }
            .stat-strip { grid-template-columns: 1fr; margin: -1.5rem 1rem 0; }
            .stat-item { border-right: none; border-bottom: 1px solid var(--gray-200); }
            .stat-item:last-child { border-bottom: none; }
            .feat-grid { grid-template-columns: 1fr; }
            .form-row { grid-template-columns: 1fr; }
            .footer-inner { flex-direction: column; text-align: center; }
        }