/* =========================================================
   ONEBASE DIGITAL - MARKETING STUDIO - MODERN LIGHT MODE
   ========================================================= */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #ffffff;
    --bg-soft: #f8f9fa;
    --bg-card: #ffffff;
    --text: #212529;
    --text-mute: #6c757d;
    --text-dim: #adb5bd;
    --border: #e9ecef;
    --border-light: #f1f3f5;
    --accent: #00a4b2;
    --accent-dark: #007a85;
    --accent-light: #e0f7f9;
    --accent-2: #00b8c7;
    --dark: #1a1a2e;
    --dark-2: #16213e;
    --max-w: 1200px;
    --pad: 1.5rem;
    --radius: 8px;
    --radius-lg: 16px;
    --font: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: var(--text); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: 0; background: transparent; }

h1, h2, h3, h4, h5, h6 {
    color: var(--text);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -.02em;
}
h1 { font-size: clamp(36px, 5vw, 60px); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(28px, 3.5vw, 42px); font-weight: 700; }
h3 { font-size: clamp(20px, 2.5vw, 28px); font-weight: 600; }
h4 { font-size: 20px; font-weight: 600; }
p { color: var(--text); margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--pad);
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: .02em;
    transition: all .25s ease;
    border: 2px solid transparent;
    white-space: nowrap;
    text-transform: uppercase;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; transform: translateY(-2px);     box-shadow: 0 8px 20px rgba(0,164,178,.3); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--text); }
.btn-outline:hover { background: var(--text); color: #fff; }
.btn-light { background: #fff; color: var(--accent); border-color: #fff; }
.btn-light:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-lg { padding: 16px 36px; font-size: 15px; }
.btn-sm { padding: 10px 20px; font-size: 12px; }

/* NAVBAR */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,.95);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-bottom: 1px solid var(--border);
    transition: all .3s;
}
.navbar.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.06); }
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px var(--pad);
    gap: 30px;
}
.logo img { height: 36px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links > a, .dropdown-toggle {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 8px 0;
    position: relative;
    transition: color .2s;
}
.nav-links > a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--accent);
    transition: width .3s cubic-bezier(.2,.6,.2,1);
}
.nav-links > a:hover::after, .nav-links > a.active::after { width: 100%; }
.nav-links > a:hover, .nav-links > a.active { color: var(--accent); }
.caret { font-size: 10px; transition: transform .2s; }
.dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 0;
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all .2s ease;
    box-shadow: 0 10px 40px rgba(0,0,0,.08);
    list-style: none;
}
.dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown:hover .caret { transform: rotate(180deg); }
.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 13.5px;
    color: var(--text);
    font-weight: 500;
}
.dropdown-menu a:hover { background: var(--bg-soft); color: var(--accent); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.mobile-toggle { display: none; padding: 8px; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: all .3s; }
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* HERO */
.hero { padding: 100px 0 80px; background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%); position: relative; overflow: hidden; }
.hero::before {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0,164,178,.06), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 20px;
}
.hero-title { font-size: clamp(36px, 5vw, 56px); font-weight: 800; line-height: 1.1; margin-bottom: 20px; }
.hero-title .accent { color: var(--accent); }
.hero-sub { font-size: 17px; line-height: 1.6; color: var(--text-mute); margin-bottom: 32px; max-width: 540px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 32px; margin-top: 40px; padding-top: 30px; border-top: 1px solid var(--border); }
.hero-stat .num { font-size: 28px; font-weight: 800; color: var(--accent); line-height: 1; }
.hero-stat .label { font-size: 12px; color: var(--text-mute); text-transform: uppercase; letter-spacing: .05em; margin-top: 4px; }
.hero-visual {
    position: relative;
    aspect-ratio: 1/1;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-visual-content { position: relative; z-index: 1; text-align: center; color: #fff; padding: 40px; }
.hero-visual-content h2 { color: #fff; font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.hero-visual-content p { color: rgba(255,255,255,.9); font-size: 15px; }

/* SECTION */
.section { padding: 80px 0; }
.section-dark { background: var(--dark); color: #fff; }
.section-dark h1, .section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: rgba(255,255,255,.75); }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 14px;
}
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--text-mute); font-size: 16px; }

/* SERVICE GRID */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.svc-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all .3s cubic-bezier(.2,.6,.2,1);
    position: relative;
    overflow: hidden;
}
.svc-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s ease;
}
.svc-card:hover { transform: translateY(-6px); box-shadow: 0 20px 50px rgba(0,0,0,.08); border-color: transparent; }
.svc-card:hover::before { transform: scaleX(1); }
.svc-icon {
    width: 56px; height: 56px;
    background: var(--accent-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    margin-bottom: 20px;
    transition: all .3s;
}
.svc-card:hover .svc-icon { background: var(--accent); color: #fff; transform: scale(1.05); }
.svc-icon svg { width: 26px; height: 26px; }
.svc-card h3 { font-size: 19px; font-weight: 600; margin-bottom: 10px; }
.svc-card p { color: var(--text-mute); font-size: 14.5px; line-height: 1.6; margin-bottom: 16px; }
.svc-card a.more {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: .05em;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.svc-card a.more:hover { gap: 10px; }

/* MARQUEE */
.marquee {
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    padding: 20px 0;
}
.marquee-track {
    display: flex;
    gap: 60px;
    align-items: center;
    width: max-content;
    animation: marquee 35s linear infinite;
}
.marquee-track img { height: 44px; width: auto; opacity: .7; flex-shrink: 0; transition: opacity .2s; }
.marquee-track img:hover { opacity: 1; }
.marquee.reverse .marquee-track { animation: marquee-rev 50s linear infinite; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes marquee-rev { from { transform: translateX(-50%); } to { transform: translateX(0); } }
.clients-section { padding: 60px 0; }
.clients-label { text-align: center; font-size: 13px; color: var(--text-mute); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 24px; }

/* CASE STUDIES */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all .3s;
    display: flex;
    flex-direction: column;
}
.case-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,.08); }
.case-image { aspect-ratio: 16/10; background: var(--bg-soft); overflow: hidden; position: relative; }
.case-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case-card:hover .case-image img { transform: scale(1.05); }
.case-tag {
    position: absolute;
    top: 12px; left: 12px;
    background: var(--accent);
    color: #fff;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.case-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.case-body h3 { font-size: 17px; font-weight: 600; line-height: 1.4; margin-bottom: 12px; }
.case-body p { color: var(--text-mute); font-size: 14px; line-height: 1.55; }
.case-stats { display: flex; gap: 16px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border-light); }
.case-stat { font-size: 13px; }
.case-stat strong { display: block; color: var(--accent); font-size: 18px; font-weight: 700; }
.case-stat span { color: var(--text-mute); font-size: 12px; }

/* STATS BAR */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    padding: 50px 0;
    text-align: center;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.stat-bar-item .num { font-size: 42px; font-weight: 800; color: var(--accent); line-height: 1; }
.stat-bar-item .label { font-size: 13px; color: var(--text-mute); text-transform: uppercase; letter-spacing: .05em; margin-top: 8px; }

/* PROCESS */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; }
.process-step { text-align: center; position: relative; }
.process-num {
    width: 60px; height: 60px;
    margin: 0 auto 20px;
    background: #fff;
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: var(--accent);
    position: relative;
    z-index: 1;
}
.process-step h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.process-step p { color: var(--text-mute); font-size: 14px; line-height: 1.55; }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-visual {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.about-visual-content { color: #fff; text-align: center; padding: 40px; position: relative; z-index: 1; }
.about-visual-content .big { font-size: 72px; font-weight: 800; line-height: 1; }
.about-visual-content p { color: rgba(255,255,255,.9); font-size: 16px; margin-top: 8px; }
.about-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.value-list { list-style: none; }
.value-list li {
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.value-list li:last-child { border-bottom: 0; }
.value-list .v-icon {
    width: 40px; height: 40px;
    background: var(--accent-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
    font-size: 18px;
}
.value-list strong { display: block; font-size: 15px; margin-bottom: 4px; }
.value-list span { font-size: 14px; color: var(--text-mute); }

/* CTA SECTION */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { color: #fff; font-size: clamp(28px, 4vw, 44px); margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,.9); font-size: 17px; max-width: 600px; margin: 0 auto 30px; }

/* CONTACT */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; }
.contact-info h2 { margin-bottom: 16px; }
.contact-info > p { color: var(--text-mute); margin-bottom: 30px; }
.contact-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 14px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.contact-card .ci-icon {
    width: 44px; height: 44px;
    background: var(--accent-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
}
.contact-card .ci-icon svg { width: 20px; height: 20px; }
.contact-card h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.contact-card p { font-size: 14px; color: var(--text-mute); margin: 0; line-height: 1.5; }
.contact-form {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: 0 4px 20px rgba(0,0,0,.04);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--text); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 14px;
    color: var(--text);
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0,164,178,.1);
}
.form-group textarea { min-height: 120px; resize: vertical; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color .2s;
}
.faq-item.open { border-color: var(--accent); }
.faq-q {
    padding: 18px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}
.faq-q::after { content: '+'; font-size: 24px; font-weight: 300; color: var(--accent); flex-shrink: 0; }
.faq-item.open .faq-q::after { content: '−'; }
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
    padding: 0 24px;
    color: var(--text-mute);
    font-size: 14.5px;
    line-height: 1.65;
}
.faq-item.open .faq-a { max-height: 500px; padding: 0 24px 20px; }

/* FOOTER */
.footer { background: var(--dark); color: rgba(255,255,255,.7); padding: 70px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 50px; }
.footer-col p { color: rgba(255,255,255,.6); font-size: 14px; line-height: 1.6; margin: 20px 0 24px; }
.footer-logo { height: 100px; width: auto; }
.footer-col h4 { color: #fff; font-size: 13px; font-weight: 600; margin-bottom: 18px; text-transform: uppercase; letter-spacing: .08em; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,.6); font-size: 14px; }
.footer-col a:hover { color: #fff; }
.socials { display: flex; gap: 10px; margin-top: 20px; }
.socials a {
    width: 38px; height: 38px;
    background: rgba(255,255,255,.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
}
.socials a:hover { background: var(--accent); transform: translateY(-2px); }
.socials img { width: 16px; height: 16px; filter: invert(1); }
.footer-bottom { padding-top: 28px; border-top: 1px solid rgba(255,255,255,.1); text-align: center; }
.footer-bottom p { color: rgba(255,255,255,.5); font-size: 13px; margin: 0; }

/* BACK TO AITIFARM */
.back-to-aitifarm {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 90;
    background: var(--text);
    color: #fff;
    padding: 10px 18px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,.15);
    transition: opacity .3s, transform .3s;
    opacity: 0;
    pointer-events: none;
}
.back-to-aitifarm.show { opacity: .9; pointer-events: auto; }
.back-to-aitifarm:hover { background: var(--accent); color: #fff; transform: translateY(-2px); opacity: 1; }
.back-to-aitifarm svg { width: 14px; height: 14px; }

/* RESPONSIVE */
@media (max-width: 1024px) {
    .nav-links { display: none; }
    .mobile-toggle { display: block; }
    .nav-cta .btn-whatsapp { display: none; }
    .hero-inner, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .svc-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid, .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero-visual { max-width: 400px; margin: 0 auto; }
}
@media (max-width: 768px) {
    .hero { padding: 60px 0 50px; }
    .section, .features, .why, .modalities, .reviews, .cta, .contact-section { padding: 50px 0; }
    .svc-grid, .case-grid { grid-template-columns: 1fr; }
    .stats-bar { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .form-row { grid-template-columns: 1fr; }
    .hero-stats { gap: 20px; }
    .nav-links.mobile-open {
        display: flex;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: #fff;
        border-top: 1px solid var(--border);
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
        gap: 4px;
        box-shadow: 0 8px 30px rgba(0,0,0,.1);
    }
    .nav-links.mobile-open a, .nav-links.mobile-open .dropdown-toggle { padding: 12px 0; }
    .dropdown-menu { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; background: transparent; border: 0; padding: 0 0 0 16px; }
    .dropdown:not(.open) .dropdown-menu { display: none; }
    .dropdown.open .dropdown-menu { display: block; }
    .back-to-aitifarm { bottom: 16px; left: 16px; padding: 8px 14px; font-size: 11px; }
}