/* =========================================================
   RESET & BASE
   ========================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: #080b12;
    color: #f5f7fa;
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
}

/* =========================================================
   VARIABLES
   ========================================================= */
:root {
    --background: #080b12;
    --background-light: #0d121c;
    --surface: #111722;
    --surface-light: #171e2a;
    --border: rgba(255, 255, 255, 0.09);
    --border-hover: rgba(255, 255, 255, 0.2);
    --text: #f5f7fa;
    --text-muted: #9aa4b2;
    --text-dark: #687386;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --max-width: 1180px;
}

/* =========================================================
   GENERAL UTILITIES
   ========================================================= */
.container {
    width: min(var(--max-width), calc(100% - 48px));
    margin: 0 auto;
}

.section {
    padding: 110px 0;
}

.eyebrow {
    margin-bottom: 16px;
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

/* =========================================================
   HEADER & NAVIGATION
   ========================================================= */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    border-bottom: 1px solid transparent;
    transition:
        background 0.3s ease,
        border-color 0.3s ease,
        backdrop-filter 0.3s ease;
}

.site-header.scrolled {
    background: rgba(8, 11, 18, 0.92);
    border-color: var(--border);
    backdrop-filter: blur(14px);
}

.nav-container {
    height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.nav {
    display: flex;
    gap: 36px;
}

.nav a {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav a:hover {
    color: var(--text);
}

.nav-cta {
    padding: 10px 20px;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 0.85rem;
    font-weight: 600;
    transition:
        background 0.2s ease,
        border-color 0.2s ease;
}

.nav-cta:hover {
    background: var(--surface);
    border-color: rgba(255, 255, 255, 0.22);
}

.menu-toggle {
    display: none;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 0;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    margin: 5px auto;
    background: var(--text);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
    min-height: 800px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
    padding-top: 60px;
}

.hero::before {
    content: "";
    position: absolute;
    width: 700px;
    height: 700px;
    top: -250px;
    right: -200px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.16) 0%, rgba(59, 130, 246, 0) 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    max-width: 980px;
}

.hero h1 {
    font-size: clamp(3rem, 6.5vw, 5.5rem);
    line-height: 1.02;
    letter-spacing: -0.05em;
    font-weight: 750;
}

.hero h1 span {
    display: block;
    color: var(--text-muted);
}

.hero-description {
    max-width: 680px;
    margin-top: 28px;
    color: var(--text-muted);
    font-size: 1.15rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-top: 40px;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 24px;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition:
        transform 0.2s ease,
        background 0.2s ease,
        border-color 0.2s ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    background: var(--accent);
    color: white;
}

.button-primary:hover {
    background: var(--accent-hover);
}

.button-secondary {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
}

.button-secondary:hover {
    background: var(--surface);
    border-color: rgba(255, 255, 255, 0.22);
}

/* =========================================================
   METRICS RIBBON
   ========================================================= */
.metrics-section {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 40px 0;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.metric-card {
    display: flex;
    flex-direction: column;
    padding: 10px 16px;
    border-left: 2px solid var(--accent);
}

.metric-card strong {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
}

.metric-card span {
    margin-top: 6px;
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.4;
}

/* =========================================================
   SECTION HEADINGS
   ========================================================= */
.section-heading {
    max-width: 740px;
    margin-bottom: 60px;
}

.section-heading h2 {
    font-size: clamp(2.2rem, 4.2vw, 3.6rem);
    line-height: 1.1;
    letter-spacing: -0.04em;
    font-weight: 700;
}

.section-heading > p:last-child {
    margin-top: 18px;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.75;
}

/* =========================================================
   ABOUT
   ========================================================= */
.about-section {
    background: var(--background-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.about-intro {
    font-size: 1.75rem;
    line-height: 1.45;
    letter-spacing: -0.02em;
    color: var(--text);
}

.about-text {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.9;
}

.about-text p + p {
    margin-top: 20px;
}

/* =========================================================
   CHARCOAL & PRODUCTS
   ========================================================= */
.charcoal-section {
    background: var(--background);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 34px;
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: rgba(59, 130, 246, 0.4);
}

.card-tag {
    align-self: flex-start;
    padding: 4px 10px;
    border-radius: 4px;
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.product-card h3 {
    font-size: 1.45rem;
    letter-spacing: -0.02em;
    margin-bottom: 14px;
}

.product-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-features {
    list-style: none;
    margin-top: auto;
    border-top: 1px solid var(--border);
    padding-top: 20px;
}

.product-features li {
    position: relative;
    padding-left: 20px;
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 8px;
}

.product-features li::before {
    content: "•";
    position: absolute;
    left: 4px;
    color: var(--accent);
    font-weight: bold;
}

/* =========================================================
   SUSTAINABLE AGRICULTURE
   ========================================================= */
.agriculture-section {
    background: var(--background-light);
}

.agriculture-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 60px 50px;
    position: relative;
    overflow: hidden;
}

.agriculture-box::after {
    content: "";
    position: absolute;
    right: -100px;
    bottom: -100px;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.12) 0%, rgba(16, 185, 129, 0) 70%);
    pointer-events: none;
}

.agriculture-content {
    max-width: 760px;
}

.agriculture-content h2 {
    font-size: clamp(2rem, 3.6vw, 3rem);
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.agriculture-content p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.85;
    margin-bottom: 18px;
}

.crop-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.crop-pill {
    display: inline-block;
    padding: 8px 18px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.03);
    font-size: 0.85rem;
    font-weight: 500;
    color: #e2e8f0;
}

/* =========================================================
   LOGISTICS
   ========================================================= */
.logistics-section {
    background: var(--background);
}

.logistics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.logistics-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.logistics-card:hover {
    transform: translateY(-4px);
    border-color: rgba(59, 130, 246, 0.4);
}

.step-num {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    margin-bottom: 30px;
}

.logistics-card h3 {
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.logistics-card p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.7;
}

/* =========================================================
   CONTACT & FORM
   ========================================================= */
.contact-section {
    padding: 100px 0;
    background: var(--background-light);
}

.contact-box {
    max-width: 820px;
    margin: 0 auto;
    padding: 70px 50px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    text-align: center;
}

.contact-box h2 {
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    letter-spacing: -0.04em;
    line-height: 1.1;
}

.contact-box > p:not(.eyebrow) {
    max-width: 620px;
    margin: 18px auto 40px;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.75;
}

.inquiry-form {
    text-align: left;
    margin-top: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 18px;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.92rem;
    transition: border-color 0.2s ease, outline 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group select {
    cursor: pointer;
}

.inquiry-form button[type="submit"] {
    width: 100%;
    margin-top: 10px;
}

.contact-direct {
    margin-top: 35px;
    padding-top: 25px;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.direct-email {
    display: inline-block;
    margin-left: 8px;
    color: var(--accent);
    font-weight: 600;
}

.direct-email:hover {
    text-decoration: underline;
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    background: var(--background);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-content strong {
    font-size: 1.05rem;
    color: var(--text);
}

.footer-content p {
    margin-top: 4px;
    color: var(--text-dark);
    font-size: 0.82rem;
}

.footer-locations {
    color: var(--text-muted) !important;
    font-size: 0.8rem;
    margin-top: 6px;
}

.footer-right p {
    margin: 0;
    color: var(--text-dark);
}

/* =========================================================
   RESPONSIVE DESIGN
   ========================================================= */
@media (max-width: 992px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .logistics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        width: min(var(--max-width), calc(100% - 32px));
    }

    .section {
        padding: 80px 0;
    }

    .nav {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .nav.mobile-open {
        position: absolute;
        display: flex;
        flex-direction: column;
        top: 78px;
        left: 0;
        width: 100%;
        padding: 24px;
        background: rgba(8, 11, 18, 0.98);
        border-bottom: 1px solid var(--border);
    }

    .hero {
        min-height: 650px;
        padding-top: 40px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .agriculture-box {
        padding: 40px 24px;
    }

    .logistics-grid {
        grid-template-columns: 1fr;
    }

    .contact-box {
        padding: 45px 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
}