/* Modern Mobile-First Design for Komematch */
/* CSS Variables */
:root {
    --primary-green: #4CAF50;
    --secondary-green: #66BB6A;
    --primary-brown: #795548;
    --accent-orange: #FF6F00;
    --background-beige: #FFF8E1;
    --text-dark: #212121;
    --text-gray: #757575;
    --white: #FFFFFF;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition-speed: 300ms;
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Container */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Typography */
h1 { font-size: clamp(1.8rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.8rem); }
p { font-size: clamp(0.9rem, 2vw, 1rem); }

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 700;
    gap: var(--space-sm);
}

.nav-brand img {
    width: 36px;
    height: 36px;
}

.nav-links {
    display: none;
}

.nav-cta {
    display: none;
}

.nav-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    margin: 4px 0;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px var(--space-md) var(--space-xl);
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.5;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 100%;
    padding: var(--space-md);
}

.hero-title {
    color: var(--white);
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-xl);
    font-size: clamp(1rem, 2.5vw, 1.25rem);
}

.hero-badge {
    display: inline-block;
    background: var(--white);
    color: var(--primary-green);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
}

.btn-download {
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: transform var(--transition-speed);
    cursor: pointer;
    border: none;
}

.btn-download-primary {
    background: var(--text-dark);
    color: var(--white);
}

.btn-download-secondary {
    background: var(--white);
    color: var(--primary-green);
}

/* Features Section */
.features {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) 0;
    background: var(--background-beige);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    color: var(--text-dark);
    margin-bottom: var(--space-md);
}

.text-green {
    color: var(--primary-green);
}

.section-lead {
    color: var(--text-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.feature-card {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-speed);
    text-align: center;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

/* Producer Market Section */
.producer-market {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) 0;
}

.market-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.market-visual {
    max-width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.market-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.market-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.stats-row {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-green);
}

/* Aid Farming Section */
.aid-farming {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) 0;
    background: var(--background-beige);
}

.aid-farming-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.aid-card {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    text-align: center;
}

.aid-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

/* AI Support Section */
.ai-support {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) 0;
}

.ai-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

.ai-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.ai-demo img {
    width: 100%;
    height: auto;
}

.ai-badge {
    position: absolute;
    bottom: var(--space-md);
    left: var(--space-md);
    background: var(--primary-green);
    color: var(--white);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-md);
    font-weight: 600;
}

.ai-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.ai-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

/* Producer Story Section */
.producer-story {
    padding: var(--space-2xl) 0;
    background: var(--background-beige);
}

.story-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.story-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.story-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.story-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.story-overlay {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
}

.story-tag {
    background: var(--primary-green);
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.story-content {
    padding: var(--space-lg);
}

/* Impact Section */
.impact {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) 0;
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.impact-card {
    text-align: center;
    padding: var(--space-lg);
}

.impact-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

/* Business Features Section */
.business-features {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) 0;
    background: var(--background-beige);
}

.business-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

.business-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.business-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.business-visual {
    max-width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* How It Works Section */
.how {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) 0;
}

.how-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.how-card {
    text-align: center;
    position: relative;
}

.how-number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-green);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.how-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

/* Download Section */
.download {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) 0;
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
}

.download-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    align-items: center;
    padding: var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.download-mockup {
    max-width: 300px;
    margin: 0 auto;
}

.download-text {
    text-align: center;
    color: var(--white);
}

.download-text h2 {
    margin-bottom: var(--space-md);
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
    margin: var(--space-xl) 0;
}

.store-badge {
    height: 48px;
    width: auto;
}

.coming-soon {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    color: var(--white);
}

.download-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.download-features .feature {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* Newsletter Section */
.newsletter {
    position: relative;
    z-index: 10;
    padding: var(--space-2xl) var(--space-md);
    text-align: center;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 400px;
    margin: var(--space-xl) auto 0;
}

.newsletter-form input {
    padding: var(--space-sm);
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.newsletter-form button {
    padding: var(--space-sm);
    background: var(--primary-green);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: var(--space-2xl) 0 var(--space-md);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.footer-brand {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.footer-logo {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-md);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.footer-column h4 {
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
    text-transform: uppercase;
    opacity: 0.7;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: var(--space-xs) 0;
    font-size: 0.875rem;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    opacity: 0.7;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-content {
    padding: var(--space-lg);
}

.mobile-menu-content a {
    display: block;
    padding: var(--space-sm) 0;
    color: var(--text-dark);
    text-decoration: none;
    border-bottom: 1px solid #eee;
}

/* Utilities */
.text-center { text-align: center; }
.text-accent { color: var(--accent-orange); }
.highlight { color: var(--primary-green); }

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 36px;
    border: 2px solid var(--white);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator span::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--white);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 0; transform: translateX(-50%) translateY(0); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: translateX(-50%) translateY(16px); }
}

/* Tablet and Desktop Styles */
@media (min-width: 768px) {
    .nav-links {
        display: flex;
        gap: var(--space-xl);
    }

    .nav-links a {
        text-decoration: none;
        color: var(--text-dark);
        font-weight: 500;
        transition: color var(--transition-speed);
    }

    .nav-cta {
        display: block;
        padding: var(--space-sm) var(--space-lg);
        background: var(--primary-green);
        color: var(--white);
        border: none;
        border-radius: var(--radius-md);
        font-weight: 600;
        cursor: pointer;
    }

    .nav-toggle {
        display: none;
    }

    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }

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

    .market-content {
        grid-template-columns: 1fr 1fr;
    }

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

    .ai-content {
        grid-template-columns: 1fr 1fr;
    }

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

    .impact-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .business-content {
        grid-template-columns: 1fr 1fr;
    }

    .how-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .download-content {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }

    .download-mockup {
        margin: 0;
    }

    .download-text {
        text-align: left;
    }

    .download-buttons {
        flex-direction: row;
        justify-content: flex-start;
    }

    .download-features {
        justify-content: flex-start;
    }

    .newsletter-form {
        flex-direction: row;
        justify-content: center;
    }

    .newsletter-form input {
        flex: 1;
        max-width: 300px;
    }

    .footer-links {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .aid-farming-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .story-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .impact-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}