/* OverThere Landing Page - Minimal Japanese Style */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Soft blue-grey color palette */
    --color-bg-primary: #f5f7fa;
    --color-bg-secondary: #e8ecf1;
    --color-bg-accent: #d1dae3;
    --color-text-primary: #2d3748;
    --color-text-secondary: #4a5568;
    --color-text-muted: #718096;
    --color-accent: #5b7c99;
    --color-accent-hover: #4a6680;
    --color-border: #cbd5e0;
    --color-white: #ffffff;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

p {
    font-weight: 300;
}

/* Smooth transitions */
a, button {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Logo */
.logo-placeholder {
    transition: transform 0.3s ease;
}

.logo-placeholder:hover {
    transform: translateY(-2px);
}

/* Navigation */
nav a {
    position: relative;
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.025em;
    color: var(--color-text-secondary);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

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

nav a.active {
    color: var(--color-accent);
}

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

/* Main container animation */
.main-container {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* App Store Button */
.app-store-btn {
    display: inline-block;
    font-weight: 500;
    letter-spacing: 0.025em;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 12px 32px;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(91, 124, 153, 0.1),
                0 2px 4px -1px rgba(91, 124, 153, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-store-btn:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(91, 124, 153, 0.15),
                0 4px 6px -2px rgba(91, 124, 153, 0.1);
}

.app-store-btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 6px -1px rgba(91, 124, 153, 0.1);
}

/* Feature cards */
.feature-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(91, 124, 153, 0.08),
                0 10px 10px -5px rgba(91, 124, 153, 0.04);
    border-color: var(--color-accent);
}

.feature-number {
    color: var(--color-accent);
    font-weight: 300;
    opacity: 0.6;
}

/* Footer links */
.footer-link {
    color: var(--color-text-secondary);
    font-weight: 400;
}

.footer-link:hover {
    color: var(--color-accent);
}

/* Dividers */
.divider {
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--color-border),
        transparent
    );
}

/* Hero section */
.hero-title {
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
}

.hero-subtitle {
    font-weight: 300;
    color: var(--color-text-secondary);
}

/* Sections */
section {
    scroll-margin-top: 80px;
}

/* Responsive spacing */
@media (max-width: 768px) {
    .app-store-btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}