/* =============================================
   Splight Agriculture — Professional Design v2
   ============================================= */

:root {
    --c-primary: #1a3a1a;
    --c-primary-mid: #2d5a2d;
    --c-accent: #4a7c3f;
    --c-accent-light: #6ba05a;
    --c-gold: #c9a84c;
    --c-gold-light: #e8d590;
    --c-bg: #fafaf7;
    --c-bg-alt: #ffffff;
    --c-bg-warm: #f5f2eb;
    --c-text: #2a2a2a;
    --c-text-sub: #5a5a5a;
    --c-text-muted: #8a8a8a;
    --c-border: #e8e5de;
    --c-card-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
    --c-card-shadow-hover: 0 4px 12px rgba(0,0,0,0.06), 0 16px 40px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --font: "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font);
    color: var(--c-text);
    background: var(--c-bg);
    line-height: 1.9;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 28px; }

/* ── Header ── */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 200;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
}

.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 68px;
}

.header-logo {
    display: flex; align-items: center; gap: 12px;
}

.header-logo-icon {
    width: 36px; height: 36px;
    background: var(--c-primary);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
}

.header-logo-icon svg { width: 20px; height: 20px; }

.header-logo-text {
    font-size: 0.95rem; font-weight: 700; color: var(--c-primary);
    line-height: 1.2;
}

.header-logo-sub {
    font-size: 0.65rem; font-weight: 400; color: var(--c-text-muted);
    letter-spacing: 0.12em; text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 32px; }

.nav a {
    font-size: 0.8rem; font-weight: 500; color: var(--c-text-sub);
    letter-spacing: 0.04em; position: relative;
    transition: color 0.3s;
}

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

.nav a::after {
    content: ''; position: absolute; bottom: -4px; left: 0;
    width: 0; height: 1.5px; background: var(--c-accent);
    transition: width 0.3s;
}

.nav a:hover::after { width: 100%; }

.nav-cta {
    background: var(--c-primary) !important; color: #fff !important;
    padding: 9px 22px !important; border-radius: 8px;
    font-size: 0.78rem !important; letter-spacing: 0.06em !important;
}

.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--c-primary-mid) !important; }

.mobile-toggle {
    display: none; background: none; border: none; cursor: pointer;
    width: 28px; height: 20px; position: relative;
}

.mobile-toggle span {
    display: block; width: 100%; height: 1.5px;
    background: var(--c-primary); position: absolute; left: 0;
    transition: var(--transition);
}

.mobile-toggle span:nth-child(1) { top: 0; }
.mobile-toggle span:nth-child(2) { top: 9px; }
.mobile-toggle span:nth-child(3) { top: 18px; }

/* ── Hero ── */
.hero {
    position: relative; min-height: 88vh;
    display: flex; align-items: center;
    background: var(--c-primary);
    overflow: hidden;
}

.hero-bg {
    position: absolute; inset: 0;
    background:
        linear-gradient(135deg, rgba(26,58,26,0.85) 0%, rgba(45,90,45,0.7) 50%, rgba(74,124,63,0.6) 100%),
        url('/images/agriculture-bg.jpg') center / cover no-repeat;
}

.hero-content {
    position: relative; z-index: 2;
    max-width: 680px; padding: 120px 0 80px;
}

.hero-label {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.72rem; font-weight: 600; letter-spacing: 0.18em;
    text-transform: uppercase; color: var(--c-gold-light);
    margin-bottom: 28px;
}

.hero-label::before {
    content: ''; width: 32px; height: 1px; background: var(--c-gold);
}

.hero h1 {
    font-size: 3rem; font-weight: 700; color: #fff;
    line-height: 1.45; letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.hero h1 span { color: var(--c-gold-light); }

.hero-desc {
    font-size: 0.95rem; color: rgba(255,255,255,0.75);
    line-height: 2; margin-bottom: 40px; max-width: 520px;
}

.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 30px; border-radius: 8px;
    font-size: 0.85rem; font-weight: 600;
    transition: var(--transition); cursor: pointer; border: none;
}

.btn-white { background: #fff; color: var(--c-primary); }
.btn-white:hover { background: var(--c-bg-warm); transform: translateY(-1px); }

.btn-ghost {
    background: rgba(255,255,255,0.1); color: #fff;
    border: 1px solid rgba(255,255,255,0.25);
}

.btn-ghost:hover { background: rgba(255,255,255,0.18); }

.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-mid); transform: translateY(-1px); }

.btn-outline-dark {
    background: transparent; color: var(--c-primary);
    border: 1.5px solid var(--c-primary);
}

.btn-outline-dark:hover { background: var(--c-primary); color: #fff; }

.hero-stats {
    position: absolute; bottom: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255,255,255,0.1);
    z-index: 2;
}

.hero-stats-inner {
    display: flex; justify-content: center; gap: 64px;
    padding: 28px 0;
}

.hero-stat { text-align: center; color: #fff; }

.hero-stat-num {
    font-size: 1.8rem; font-weight: 700; letter-spacing: -0.02em;
    color: var(--c-gold-light);
}

.hero-stat-label {
    font-size: 0.72rem; color: rgba(255,255,255,0.6);
    letter-spacing: 0.06em; margin-top: 2px;
}

/* ── Sections ── */
.section { padding: 100px 0; }
.section-alt { background: var(--c-bg-alt); }
.section-warm { background: var(--c-bg-warm); }

.section-header { margin-bottom: 64px; }
.section-header.center { text-align: center; }

.section-label {
    font-size: 0.68rem; font-weight: 600; letter-spacing: 0.2em;
    text-transform: uppercase; color: var(--c-accent);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2rem; font-weight: 700; color: var(--c-primary);
    line-height: 1.4; letter-spacing: -0.01em;
}

.section-desc {
    font-size: 0.92rem; color: var(--c-text-sub);
    line-height: 2; max-width: 600px; margin-top: 16px;
}

.section-header.center .section-desc { margin-left: auto; margin-right: auto; }

/* ── About (split layout) ── */
.about-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 72px; align-items: center;
}

.about-text h3 {
    font-size: 1.5rem; font-weight: 700; color: var(--c-primary);
    line-height: 1.6; margin-bottom: 24px;
}

.about-text p {
    font-size: 0.9rem; color: var(--c-text-sub); margin-bottom: 16px;
}

.about-visual {
    position: relative; border-radius: var(--radius-lg);
    overflow: hidden; aspect-ratio: 4/3;
    background:
        linear-gradient(135deg, rgba(26,58,26,0.06) 0%, rgba(201,168,76,0.06) 100%),
        url('/images/agriculture-bg.jpg') center / cover no-repeat;
}

.about-visual-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(26,58,26,0.5) 0%, transparent 50%);
}

.about-visual-text {
    position: absolute; bottom: 28px; left: 28px; right: 28px;
    color: #fff;
}

.about-visual-text p {
    font-size: 0.85rem; font-weight: 500; line-height: 1.7;
}

/* ── Cards grid ── */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cards-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
    background: var(--c-bg-alt);
    border-radius: var(--radius);
    border: 1px solid var(--c-border);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--c-card-shadow-hover);
    border-color: transparent;
}

.card-img {
    height: 200px; overflow: hidden;
    position: relative;
}

.card-img-lemon {
    background: linear-gradient(160deg, #f7f3e3 0%, #e8dfc5 40%, #d4c9a0 100%);
}

.card-img-blueberry {
    background: linear-gradient(160deg, #e8e2f0 0%, #c5b8d9 40%, #9f8cbf 100%);
}

.card-img-pot {
    background: linear-gradient(160deg, #e0ece4 0%, #b8d4c0 40%, #8abb9a 100%);
}

.card-img-inner {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
}

.card-img-inner svg {
    width: 56px; height: 56px; opacity: 0.35;
}

.card-body { padding: 28px; }

.card-tag {
    display: inline-block; font-size: 0.68rem; font-weight: 600;
    letter-spacing: 0.08em; color: var(--c-accent);
    background: rgba(74,124,63,0.08);
    padding: 4px 12px; border-radius: 4px; margin-bottom: 14px;
}

.card h3 {
    font-size: 1.1rem; font-weight: 700; color: var(--c-primary);
    margin-bottom: 10px;
}

.card p {
    font-size: 0.85rem; color: var(--c-text-sub);
    line-height: 1.85; margin-bottom: 18px;
}

.card-list li {
    font-size: 0.82rem; color: var(--c-text);
    padding: 6px 0 6px 24px; position: relative;
}

.card-list li::before {
    content: '';
    position: absolute; left: 0; top: 13px;
    width: 6px; height: 6px;
    border: 1.5px solid var(--c-accent);
    border-radius: 50%;
}

/* ── Service cards ── */
.service-card {
    background: var(--c-bg-alt);
    border-radius: var(--radius);
    border: 1px solid var(--c-border);
    padding: 36px;
    transition: var(--transition);
    position: relative;
}

.service-card::before {
    content: ''; position: absolute; top: 0; left: 0;
    width: 4px; height: 100%;
    background: linear-gradient(to bottom, var(--c-accent), var(--c-gold));
    border-radius: var(--radius) 0 0 var(--radius);
    opacity: 0; transition: opacity 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--c-card-shadow-hover);
    border-color: transparent;
}

.service-card:hover::before { opacity: 1; }

.service-icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--c-accent), var(--c-primary-mid));
    border-radius: 12px; margin-bottom: 24px;
    display: flex; align-items: center; justify-content: center;
}

.service-icon svg { width: 22px; height: 22px; }

.service-card h3 {
    font-size: 1.1rem; font-weight: 700; color: var(--c-primary);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.85rem; color: var(--c-text-sub);
    line-height: 1.85; margin-bottom: 20px;
}

.check-list li {
    font-size: 0.82rem; color: var(--c-text);
    padding: 5px 0 5px 26px; position: relative;
}

.check-list li::before {
    content: '';
    position: absolute; left: 0; top: 8px;
    width: 14px; height: 14px;
    background: rgba(74,124,63,0.1);
    border-radius: 50%;
}

.check-list li::after {
    content: '';
    position: absolute; left: 4px; top: 13px;
    width: 6px; height: 3px;
    border-left: 1.5px solid var(--c-accent);
    border-bottom: 1.5px solid var(--c-accent);
    transform: rotate(-45deg);
}

/* ── Synergy banner ── */
.synergy {
    background: var(--c-primary);
    border-radius: var(--radius-lg);
    padding: 64px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.synergy::before {
    content: ''; position: absolute;
    top: -80px; right: -80px;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(201,168,76,0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.synergy h3 {
    font-size: 1.6rem; font-weight: 700;
    line-height: 1.5; margin-bottom: 18px;
}

.synergy > div:first-child p {
    font-size: 0.88rem; opacity: 0.75; line-height: 2;
}

.synergy-items { display: flex; flex-direction: column; gap: 16px; }

.synergy-item {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: 20px 24px;
    transition: background 0.3s;
}

.synergy-item:hover { background: rgba(255,255,255,0.12); }

.synergy-item-title {
    font-size: 0.88rem; font-weight: 700;
    margin-bottom: 4px;
}

.synergy-item-desc {
    font-size: 0.8rem; opacity: 0.7; line-height: 1.7;
}

/* ── CTA ── */
.cta {
    padding: 80px 0;
    text-align: center;
    background:
        linear-gradient(to bottom, var(--c-bg-warm), var(--c-bg));
}

.cta h2 {
    font-size: 1.5rem; font-weight: 700; color: var(--c-primary);
    margin-bottom: 12px;
}

.cta p {
    font-size: 0.9rem; color: var(--c-text-sub);
    margin-bottom: 36px; line-height: 2;
}

.cta-buttons { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ── Footer ── */
.footer {
    background: var(--c-primary); color: rgba(255,255,255,0.55);
    padding: 56px 0 28px;
}

.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr;
    gap: 48px; margin-bottom: 44px;
}

.footer-brand { font-size: 0.85rem; line-height: 1.9; }

.footer-brand strong {
    display: block; color: #fff; font-size: 1rem; margin-bottom: 12px;
}

.footer h4 {
    color: rgba(255,255,255,0.8);
    font-size: 0.72rem; font-weight: 600;
    letter-spacing: 0.12em; text-transform: uppercase;
    margin-bottom: 18px;
}

.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.82rem; transition: color 0.3s; }
.footer-links a:hover { color: rgba(255,255,255,0.9); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    font-size: 0.72rem; text-align: center;
}

/* ── Responsive ── */
@media (max-width: 960px) {
    .hero h1 { font-size: 2.4rem; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .cards-3 { grid-template-columns: 1fr 1fr; }
    .synergy { grid-template-columns: 1fr; padding: 44px 32px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .hero-stats-inner { gap: 36px; }
}

@media (max-width: 768px) {
    .nav { display: none; }
    .nav.open {
        display: flex !important; flex-direction: column;
        position: absolute; top: 68px; left: 0; right: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        padding: 24px 28px; gap: 18px;
        box-shadow: 0 16px 48px rgba(0,0,0,0.08);
        border-bottom: 1px solid var(--c-border);
    }
    .mobile-toggle { display: block; }
    .hero { min-height: 80vh; }
    .hero h1 { font-size: 1.9rem; }
    .hero-content { padding: 100px 0 100px; }
    .hero-stats-inner { flex-wrap: wrap; gap: 24px; }
    .section { padding: 72px 0; }
    .section-title { font-size: 1.6rem; }
    .cards-3 { grid-template-columns: 1fr; }
    .cards-2 { grid-template-columns: 1fr; }
    .synergy { padding: 36px 24px; }
    .synergy h3 { font-size: 1.3rem; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.6rem; }
    .hero-buttons { flex-direction: column; }
    .hero-stats-inner { flex-direction: column; gap: 16px; }
    .cta-buttons { flex-direction: column; align-items: center; }
}