/* PetKeep Website Styles */

:root {
    --color-primary: #f59e0b;
    --color-primary-dark: #d97706;
    --color-accent: #fbbf24;
    --color-bg: #ffffff;
    --color-surface: #f9fafb;
    --color-text: #111827;
    --color-text-secondary: #6b7280;
    --color-danger: #ef4444;
    --color-success: #22c55e;
    --radius: 16px;
    --radius-sm: 8px;
    --max-width: 960px;
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
}

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

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    border-bottom: 1px solid #e5e7eb;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--color-text);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.main-nav {
    display: flex;
    gap: 24px;
}

.main-nav a {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Hero */
.hero {
    padding: 80px 0 60px;
    text-align: center;
    background: linear-gradient(180deg, #fffbeb 0%, #ffffff 100%);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto 32px;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.app-store-badge img {
    height: 48px;
}

.price-hint {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Features */
.features {
    padding: 60px 0;
}

.features h2 {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 40px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 28px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

/* Pricing */
.pricing {
    padding: 60px 0;
    background: var(--color-surface);
}

.pricing h2 {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 40px;
}

.pricing-cards {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.pricing-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 32px;
    width: 100%;
    max-width: 320px;
    border: 1px solid #e5e7eb;
    position: relative;
}

.pricing-card.pro {
    border-color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.15);
}

.pro-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 999px;
}

.pricing-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.price {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.price-note {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.pricing-card ul {
    list-style: none;
}

.pricing-card li {
    padding: 6px 0;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    padding-left: 20px;
    position: relative;
}

.pricing-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

/* Social Proof */
.social-proof {
    padding: 60px 0;
    text-align: center;
}

.social-proof blockquote {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 16px;
}

.social-proof cite {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-style: normal;
}

/* Footer */
.site-footer {
    border-top: 1px solid #e5e7eb;
    padding: 32px 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.footer-links a {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

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

.copyright {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

/* Responsive */
@media (max-width: 640px) {
    .main-nav {
        display: none;
    }

    .hero {
        padding: 60px 0 40px;
    }

    .pricing-cards {
        flex-direction: column;
        align-items: center;
    }
}