/* =========================================================
   FORAGE AGRONOMY LAB — Global Styles
   css/style.css
========================================================= */


/* =========================================================
   1. DESIGN TOKENS
========================================================= */

:root {
    --brown-dark:   #3b2a20;
    --brown:        #5a4030;
    --brown-light:  #7a5a43;
    --green:        #536b45;
    --green-dark:   #3e5435;
    --green-light:  #718563;
    --cream:        #f5f1e9;
    --cream-dark:   #ebe4d7;
    --white:        #ffffff;
    --text:         #302a25;
    --text-light:   #6d645d;
    --text-muted:   #8a8178;
    --border:       #ddd4c7;
    --border-light: #e9e3d9;
    --gold:         #ffc425;
    --gold-muted:   #b59a68;
    --max-width:    1180px;
    --shadow-small:  0 4px 15px  rgba(59,42,32,0.07);
    --shadow-medium: 0 12px 30px rgba(59,42,32,0.10);
    --shadow-large:  0 20px 45px rgba(59,42,32,0.13);
    --transition:   0.25s ease;
}


/* =========================================================
   2. RESET
========================================================= */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0; padding: 0;
    background: var(--cream);
    color: var(--text);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }


/* =========================================================
   3. CONTAINER
========================================================= */

.container {
    width: min(calc(100% - 48px), var(--max-width));
    margin-left: auto;
    margin-right: auto;
}


/* =========================================================
   4. TYPOGRAPHY
========================================================= */

h1,h2,h3,h4,h5,h6 {
    margin-top: 0;
    color: var(--brown-dark);
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 500;
}

p { margin-top: 0; }
strong { color: var(--brown-dark); }

.eyebrow {
    margin: 0 0 14px;
    color: var(--green);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2.2px;
    text-transform: uppercase;
}

/* =========================================================
   6. SITE HEADER
========================================================= */

.site-header {
    position: relative;
    z-index: 1000;
}

/* Brown brand bar — always visible */
.header-brand-bar {
    background: var(--brown-dark);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-brand-inner {
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* White nav strip — desktop only */
.header-nav-bar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 10px rgba(59,42,32,0.05);
}


/* =========================================================
   7. BRAND
========================================================= */

.brand { flex-shrink: 0; }

.brand a {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    transition: opacity var(--transition);
}

.brand a:hover { opacity: 0.88; }

.brand-title {
    color: var(--white);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 22px;
    font-weight: 600;
    line-height: 1.15;
}

.brand-subtitle {
    color: var(--gold);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    padding-left: 18px;
    border-left: 1px solid rgba(255,255,255,0.22);
}


/* =========================================================
   8. DESKTOP NAV  (.desktop-nav inside .header-nav-bar)
   Visible on desktop, hidden on mobile.
========================================================= */

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 0;
    font-family: Arial, Helvetica, sans-serif;
}

.desktop-nav > a,
.desktop-nav .dropdown-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 50px;
    padding: 0 18px;
    border: 0;
    background: transparent;
    color: var(--brown);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    transition: color var(--transition), background var(--transition);
}

.desktop-nav > a:hover,
.desktop-nav .dropdown-button:hover {
    color: var(--green-dark);
    background: var(--cream);
}

.desktop-nav > a.active { color: var(--green-dark); }

.desktop-nav > a.active::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 3px;
    background: var(--green);
}

/* Desktop dropdown */
.desktop-nav .nav-dropdown { position: relative; }

.desktop-nav .dropdown-button { gap: 6px; }

.desktop-nav .dropdown-button span {
    font-size: 11px;
    transition: transform var(--transition);
}

.desktop-nav .nav-dropdown:hover .dropdown-button span {
    transform: rotate(180deg);
}

.desktop-nav .dropdown-menu {
    position: absolute;
    top: 100%; left: 0;
    min-width: 230px;
    padding: 8px;
    background: var(--white);
    border: 1px solid var(--border);
    border-top: 3px solid var(--green);
    box-shadow: var(--shadow-medium);
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition:
        opacity var(--transition),
        visibility var(--transition),
        transform var(--transition);
}

.desktop-nav .nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.desktop-nav .dropdown-menu a {
    display: block;
    padding: 12px 16px;
    color: var(--brown);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
    font-weight: 600;
    transition:
        background var(--transition),
        color var(--transition),
        padding-left var(--transition);
}

.desktop-nav .dropdown-menu a:hover {
    padding-left: 22px;
    background: var(--cream);
    color: var(--green-dark);
}


/* =========================================================
   9. MOBILE NAV  (.main-nav inside .header-brand-bar)
   Hidden on desktop. Shown as dropdown on mobile.
========================================================= */

/* On desktop: hide mobile nav completely */
.main-nav {
    display: none;
}

/* Mobile menu button — hidden on desktop */
.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid rgba(255,255,255,0.35);
    background: transparent;
    color: var(--white);
    font-size: 20px;
    line-height: 1;
    transition: background var(--transition);
}

.menu-toggle:hover {
    background: rgba(255,255,255,0.12);
}


/* =========================================================
   10. PAGE HERO
========================================================= */

.page-hero {
    position: relative;
    overflow: hidden;
    padding: 105px 0 110px;
    background: linear-gradient(
        120deg,
        var(--brown-dark) 0%,
        var(--brown) 55%,
        var(--brown-light) 100%
    );
    color: var(--white);
}

.page-hero::after {
    content: "";
    position: absolute;
    width: 420px; height: 420px;
    right: -140px; top: -180px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 50%;
    box-shadow:
        0 0 0 55px  rgba(255,255,255,0.025),
        0 0 0 110px rgba(255,255,255,0.02);
    pointer-events: none;
}

.page-hero .container { position: relative; z-index: 1; }
.page-hero .eyebrow   { color: var(--gold-muted); }

.page-hero h1 {
    max-width: 850px;
    margin-bottom: 22px;
    color: var(--white);
    font-size: clamp(44px, 6vw, 72px);
    line-height: 1.05;
    letter-spacing: -1.5px;
}

.hero-text {
    max-width: 720px;
    margin-bottom: 0;
    color: rgba(255,255,255,0.82);
    font-size: 18px;
    line-height: 1.75;
}


/* =========================================================
   11. SECTION HEADING
========================================================= */

.section-heading { max-width: 760px; }

.section-heading h2 {
    margin-bottom: 20px;
    color: var(--brown-dark);
    font-size: clamp(35px, 5vw, 52px);
    line-height: 1.1;
    letter-spacing: -0.7px;
}

.section-heading > p:last-child {
    color: var(--text-light);
    font-size: 17px;
    line-height: 1.75;
}


/* =========================================================
   12. BUTTONS
========================================================= */

.button, .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 13px 22px;
    border: 1px solid var(--brown);
    background: var(--brown);
    color: var(--white);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition:
        background var(--transition),
        border-color var(--transition),
        transform var(--transition);
}

.button:hover, .btn:hover {
    background: var(--green-dark);
    border-color: var(--green-dark);
    transform: translateY(-2px);
}


/* =========================================================
   13. CARD / IMAGE FRAME / DIVIDER
========================================================= */

.card {
    background: var(--white);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-small);
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-medium); }

.image-frame { overflow: hidden; background: var(--cream-dark); }

.image-frame img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.image-frame:hover img { transform: scale(1.035); }

.section-divider {
    width: 55px; height: 2px;
    margin: 25px 0;
    background: var(--green);
}


/* =========================================================
   14. FOOTER
========================================================= */

.site-footer { border-top: 4px solid var(--gold); }

.footer-cream { background: var(--cream); padding: 60px 0 52px; }

.footer-cream-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.footer-brand-name {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 22px; font-weight: 600;
    color: var(--brown-dark); line-height: 1.2; margin-bottom: 4px;
}

.footer-brand-sub {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 10px; font-weight: 700;
    letter-spacing: 1.8px; text-transform: uppercase;
    color: var(--green); margin-bottom: 18px;
}

.footer-address {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px; line-height: 1.85;
    color: var(--text-light); margin: 0;
}

.footer-links-col h4,
.footer-contact-col h4 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 10px; font-weight: 700;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--brown-dark); margin: 0 0 18px;
}

.footer-links-col a {
    display: block;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px; color: var(--text-light); margin-bottom: 10px;
    transition: color var(--transition), padding-left var(--transition);
}

.footer-links-col a:hover { color: var(--green-dark); padding-left: 5px; }

.footer-email-link {
    display: inline-block;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px; color: var(--brown);
    padding: 10px 16px;
    border: 1px solid var(--border); border-radius: 3px;
    word-break: break-all;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.footer-email-link:hover {
    background: var(--brown-dark);
    border-color: var(--brown-dark);
    color: var(--white);
}

.footer-bottom {
    background: var(--brown-dark);
    border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-bottom .container {
    padding: 18px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-bottom p {
    margin: 0;
    color: rgba(255,255,255,0.42);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 12px;
}


/* =========================================================
   15. ACCESSIBILITY
========================================================= */

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 3px;
}


/* =========================================================
   16. TABLET
========================================================= */

@media (max-width: 900px) {

    .desktop-nav > a,
    .desktop-nav .dropdown-button {
        font-size: 12px;
        padding: 0 13px;
    }

    .footer-cream-grid { gap: 40px; }
    .page-hero { padding: 85px 0 90px; }
}


/* =========================================================
   17. MOBILE
   Switch from desktop two-row header to mobile hamburger.
========================================================= */

@media (max-width: 700px) {

    .container {
        width: min(calc(100% - 34px), var(--max-width));
    }

    /* Brand bar adjustments */
    .header-brand-inner { min-height: 60px; }
    .brand a            { gap: 10px; }
    .brand-title        { font-size: 19px; }
    .brand-subtitle     { font-size: 9px; letter-spacing: 1px; padding-left: 10px; }

    /* Show hamburger button */
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Hide desktop nav strip */
    .header-nav-bar { display: none; }

    /*
       Mobile nav — lives inside .header-brand-bar.
       Shown as a vertical list below the brand bar.
       Hidden by default; .open class added by JS.
    */
    .main-nav {
        display: none;           /* hidden by default  */
        flex-direction: column;
        align-items: stretch;
        background: var(--white);
        border-top: 3px solid var(--green);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 6px 20px rgba(59,42,32,0.12);
        padding: 4px 0 10px;
        width: 100%;
    }

    /* JS adds .open → show the list */
    .main-nav.open {
        display: flex;
    }

    .main-nav > a,
    .main-nav .dropdown-button {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        min-height: 52px;
        padding: 0 20px;
        border: 0;
        border-bottom: 1px solid var(--border-light);
        background: transparent;
        color: var(--brown-dark);
        font-family: Arial, Helvetica, sans-serif;
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 0.5px;
        text-transform: uppercase;
        text-align: left;
        transition: background var(--transition), color var(--transition);
    }

    .main-nav > a:hover,
    .main-nav .dropdown-button:hover {
        background: var(--cream);
        color: var(--green-dark);
    }

    .main-nav > a.active { color: var(--green-dark); }

    /* Mobile extension dropdown */
    .main-nav .nav-dropdown { width: 100%; }

    .main-nav .dropdown-button { cursor: pointer; }

    .main-nav .dropdown-button span {
        font-size: 12px;
        transition: transform var(--transition);
    }

    .main-nav .nav-dropdown.open .dropdown-button span {
        transform: rotate(180deg);
    }

    .main-nav .dropdown-menu {
        display: none;
        position: static;
        padding: 0;
        border: 0;
        border-top: 2px solid var(--green);
        box-shadow: none;
        background: var(--cream);
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .main-nav .nav-dropdown.open .dropdown-menu {
        display: block;
    }

    .main-nav .dropdown-menu a {
        display: block;
        padding: 14px 20px 14px 34px;
        color: var(--brown);
        font-family: Arial, Helvetica, sans-serif;
        font-size: 13px;
        font-weight: 600;
        border-bottom: 1px solid var(--border-light);
        transition: color var(--transition), padding-left var(--transition);
    }

    .main-nav .dropdown-menu a:hover {
        color: var(--green-dark);
        padding-left: 40px;
    }

    /* Hero */
    .page-hero { padding: 70px 0 75px; }

    .page-hero h1 {
        font-size: clamp(40px, 11vw, 58px);
        letter-spacing: -1px;
    }

    .hero-text { font-size: 16px; }

    /* Footer */
    .footer-cream-grid { grid-template-columns: 1fr; gap: 36px; }
    .footer-cream      { padding: 48px 0 40px; }
}


/* =========================================================
   18. SMALL MOBILE
========================================================= */

@media (max-width: 450px) {

    .container    { width: calc(100% - 28px); }
    .uw-topbar    { display: none; }
    .brand-title  { font-size: 17px; }
    .brand-subtitle { display: none; }
    .page-hero    { padding: 58px 0 65px; }
    .page-hero h1 { font-size: 38px; }
    .hero-text    { font-size: 15px; }
    .footer-bottom .container { padding: 16px 0; }
}


/* =========================================================
   19. REDUCED MOTION
========================================================= */

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration:  0.01ms !important;
    }
}