:root {
    --primary-color: #FF6B00;
    /* Dandori Orange */
    --primary-hover: #E65A00;
    --text-main: #1A1A1A;
    --text-muted: #666666;
    --bg-white: #FFFFFF;
    --bg-light: #F9F9F9;
    --bg-dark: #121212;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.1);
    --font-inter: 'Inter', 'Noto Sans JP', system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-inter);
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: contain;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-links .btn {
    color: white;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 100px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background-color: var(--bg-light);
    border-color: rgba(0, 0, 0, 0.2);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, #1A1A1A 0%, #4A4A4A 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 480px;
}

.hero-cta {
    display: flex;
    gap: 16px;
}

.hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
}

/* App Mockup Placeholder */
/* App Mockup */
.app-mockup {
    width: 300px;
    /* Adjusted width */
    height: auto;
    border-radius: 40px;
    border: 8px solid #333;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    transform: rotate(-5deg);
    transition: transform 0.5s ease;
    background: #000;
}

.app-mockup .mockup-img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 32px;
    /* Inner radius matching bezel */
}

/* Features Section */
/* ... existing feature styles ... */

.feature-img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    /* OR cover depending on image aspect ratio desired */
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    background-color: var(--bg-light);
    /* subtle background for transparent images */
}

/* Removing old placeholder styles if no longer needed */
/* .mockup-screen, .timeline-visualization, .feature-icon ... */


/* Features Section */
.features {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    letter-spacing: -0.03em;
}

.features-grid {
    display: flex;
    flex-direction: column;
    gap: 100px;
}

.feature-card {
    display: flex;
    align-items: center;
    gap: 60px;
    background: transparent;
    padding: 0;
    box-shadow: none;
}

.feature-card:hover {
    transform: none;
    /* Disable card lift for this layout */
    box-shadow: none;
}

/* Zigzag pattern */
.feature-card:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-image-container {
    flex: 1;
    display: flex;
    justify-content: center;
    background: var(--bg-white);
    padding: 20px;
    border-radius: 30px;
    box-shadow: var(--shadow-md);
    /* Make image container distinct */
}

.feature-card:hover .feature-image-container {
    transform: translateY(-8px);
    transition: transform 0.3s ease;
}

.feature-img {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 500px;
    /* Allow tall screenshots */
    border-radius: 12px;
    object-fit: contain;
    background-color: transparent;
    margin-bottom: 0;
}

.feature-text-content {
    flex: 1;
}

.feature-card h3 {
    font-size: 2rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Responsive adjustments for features */
@media (max-width: 768px) {
    .feature-card {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }

    .feature-card:nth-child(even) {
        flex-direction: column;
    }

    .feature-img {
        max-height: 400px;
    }
}


/* CTA Section */
.cta-section {
    padding: 100px 0;
    text-align: center;
    background-color: var(--text-main);
    color: white;
}

.cta-section h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.25rem;
    opacity: 0.8;
    margin-bottom: 40px;
}

.app-store-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.store-button {
    background: #000;
    color: white;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 24px;
    border-radius: 12px;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: background 0.2s;
}

.store-button:hover {
    background: #222;
}

.store-icon {
    font-size: 28px;
}

.store-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.small-text {
    font-size: 0.75rem;
}

.big-text {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Footer */
.footer {
    padding: 60px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

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

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 968px) {
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Add mobile menu logic later if needed or rely on simple hidden for now */
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-subtitle {
        margin: 0 auto 32px;
    }

    .hero-cta {
        justify-content: center;
    }

    .footer-container {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}

/* Legal Content */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h1 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--text-main);
}

.legal-content h2 {
    font-size: 1.5rem;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--text-main);
}

.legal-content p {
    color: var(--text-muted);
    margin-bottom: 16px;
    font-size: 1.05rem;
}

.legal-content ul {
    margin-bottom: 24px;
    padding-left: 24px;
    color: var(--text-muted);
}

.legal-content li {
    margin-bottom: 8px;
}

.legal-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

.legal-content strong {
    color: var(--text-main);
    font-weight: 600;
}