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

:root {
    --primary-color: #007AFF;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --background: #fbfbfd;
    --card-background: #ffffff;
    --border-color: #d2d2d7;
    --hover-background: #f5f5f7;
    --shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 24px rgba(0, 0, 0, 0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 80px 0 60px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, #6e6e73 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 21px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
}

/* Grid Layout */
main {
    flex: 1;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 80px;
}

/* Card Styles */
.card {
    background: var(--card-background);
    border-radius: 18px;
    padding: 32px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.card:hover:not(.card-disabled) {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.card-disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.card-disabled:hover {
    transform: none;
    box-shadow: var(--shadow);
    border-color: var(--border-color);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), #5856d6);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
}

.card-disabled .card-icon {
    background: linear-gradient(135deg, #c7c7cc, #8e8e93);
}

.card-content h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.card-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.5;
}

.card-cta {
    font-size: 15px;
    color: var(--primary-color);
    font-weight: 500;
    margin-top: auto;
    display: inline-block;
}

.coming-soon {
    color: var(--text-secondary);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    color: var(--text-secondary);
    font-size: 14px;
    border-top: 1px solid var(--border-color);
    margin-top: 60px;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-description {
    margin-top: 16px;
    font-size: 13px;
    line-height: 1.6;
    opacity: 0.8;
}

.footer-links {
    margin-top: 20px;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-links span {
    color: var(--border-color);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.fade-in-delay {
    opacity: 0;
    animation: fadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s forwards;
}

.fade-in-card {
    opacity: 0;
    animation: fadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s forwards;
}

.fade-in-card-delay {
    opacity: 0;
    animation: fadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.6s forwards;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 40px;
    }

    .subtitle {
        font-size: 18px;
    }

    .grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .card {
        padding: 24px;
    }
}