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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --text: #111827;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --surface: #ffffff;
    --shadow-md: 0 6px 12px -2px rgb(0 0 0 / 0.08), 0 3px 6px -3px rgb(0 0 0 / 0.06);
    --shadow-xl: 0 20px 30px -5px rgb(0 0 0 / 0.12), 0 8px 12px -6px rgb(0 0 0 / 0.1);
    --radius-lg: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(to bottom, #fafafa 0%, #f5f5f7 100%);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.header h1 {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.user-name {
    font-weight: 500;
    font-size: 0.9375rem;
}

.logout-btn {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 3rem 2rem;
}

.welcome-text {
    text-align: center;
    margin-bottom: 3rem;
}

.welcome-text h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.welcome-text p {
    color: var(--text-light);
    font-size: 1.125rem;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 320px));
    gap: 1.5rem;
    justify-content: center;
    width: 100%;
    max-width: 800px;
}

.app-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.app-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.app-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1;
}

.app-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.app-description {
    color: var(--text-light);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.app-badge {
    margin-top: 1rem;
    padding: 0.375rem 0.75rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 640px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .apps-grid {
        grid-template-columns: 1fr;
    }

    .welcome-text h2 {
        font-size: 1.5rem;
    }
}