@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Noto+Sans+JP:wght@400;500;600&family=Noto+Serif+JP:wght@400;500;600;700&display=swap');

:root {
    /* Claude.com Inspired - Warm Editorial Theme */
    --bg-color: #F4F2EB;
    --surface-color: #FFFFFF;
    --surface-alt: #EFECE3;
    --surface-border: rgba(36, 34, 32, 0.08);
    --text-primary: #242220;
    --text-secondary: #5C5955;
    --accent-color: #D37753; /* Terracotta */
    --accent-hover: #BF6846;
    
    /* Typography */
    --font-heading: 'Noto Serif JP', 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', 'Noto Sans JP', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Shadows */
    --shadow-sm: 0 4px 12px rgba(36, 34, 32, 0.04);
    --shadow-md: 0 12px 24px rgba(36, 34, 32, 0.06);
    --shadow-lg: 0 24px 48px rgba(36, 34, 32, 0.08);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

/* Dark Mode Fallback (Optional, but let's keep it elegant dark) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1918;
        --surface-color: #242220;
        --surface-alt: #2a2826;
        --surface-border: rgba(255, 255, 255, 0.08);
        --text-primary: #f2f0eb;
        --text-secondary: #a39f9b;
        --accent-color: #D37753;
        --accent-hover: #E38763;
        --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
        --shadow-md: 0 12px 24px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.4);
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hide background glows from previous style */
.bg-glow, .bg-glow-alt {
    display: none;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    line-height: 1.3;
    font-weight: 500;
}

h1 { font-size: clamp(3rem, 6vw, 5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; margin-bottom: var(--spacing-lg); }
h3 { font-size: 1.5rem; margin-bottom: var(--spacing-xs); }

p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

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

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(244, 242, 235, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--surface-border);
    padding: var(--spacing-sm) 0;
}
@media (prefers-color-scheme: dark) {
    header { background: rgba(26, 25, 24, 0.95); }
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Buttons - Solid Pill Shape */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 9999px; /* Pill */
    font-size: 1.05rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    cursor: pointer;
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--surface-border);
}
.btn-secondary:hover {
    border-color: var(--text-primary);
    background: var(--surface-alt);
}

/* Hero */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 100px;
    text-align: center;
}
.hero-content {
    max-width: 800px;
}
.hero p {
    font-size: 1.35rem;
    max-width: 650px;
    margin: var(--spacing-md) auto;
}

/* Sections */
section {
    padding: var(--spacing-xl) 0;
}

/* Grid Layout */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

/* Elegant Solid Card */
.glass-card {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}
.glass-card:hover {
    border-color: var(--text-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}

.app-icon {
    width: 64px;
    height: 64px;
    border-radius: 22.5%;
    border: 1px solid var(--surface-border);
    margin-bottom: var(--spacing-sm);
    object-fit: cover;
}

.app-desc {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

/* LP Specific Styles */
.lp-hero {
    min-height: 85vh;
    padding-top: 140px;
    padding-bottom: 80px;
}

.lp-grid {
    display: grid;
    /* Force columns to not exceed 1fr */
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--spacing-lg);
    align-items: center;
}

/* Screenshot styling */
.screenshot-container {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
    position: relative;
    width: 100%;
}

.screenshot-container img {
    border-radius: 36px;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--text-primary);
    width: 100%;
    max-width: 320px; /* Cap width */
    height: auto;
    object-fit: cover;
    transition: transform 0.4s ease;
}

/* If multiple images, let them share space and shrink slightly */
.screenshot-container img:not(:only-child) {
    max-width: 260px;
}

.screenshot-container img:hover {
    transform: translateY(-8px);
}

/* Features List */
.features-list {
    margin: var(--spacing-md) 0;
    list-style: none;
}
.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-primary);
}
.feature-icon {
    color: var(--accent-color);
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.store-badges {
    margin-top: var(--spacing-md);
}

.legal-links {
    margin-top: var(--spacing-lg);
    display: flex;
    gap: 1.5rem;
    border-top: 1px solid var(--surface-border);
    padding-top: var(--spacing-sm);
}
.legal-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
}
.legal-links a:hover {
    color: var(--text-primary);
}

/* Footer */
footer {
    border-top: 1px solid var(--surface-border);
    padding: var(--spacing-md) 0;
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUpAnim 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

@keyframes fadeUpAnim {
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
    .lp-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .screenshot-container {
        flex-direction: column; /* Stack multiple images on mobile */
        gap: var(--spacing-lg);
    }
    .screenshot-container img, 
    .screenshot-container img:not(:only-child) {
        max-width: 280px; /* Reset max-width for mobile */
    }
    .features-list li {
        text-align: left;
    }
    .legal-links {
        justify-content: center;
    }
}