:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --container-width: 800px;
    --header-height: 200px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --transition-speed: 0.3s;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

.hero {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: white;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-bottom: 2rem;
    padding: 0 1rem;
}

.hero h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.hero p {
    font-size: 1rem;
    color: #94a3b8;
    font-weight: 300;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.grid-menu {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 30px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    transition: all var(--transition-speed) ease;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

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

.card-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    background: #eff6ff;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.card h2 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: var(--text-main);
}

.card p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

footer {
    text-align: center;
    padding: 1rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    border-top: 1px solid var(--border-color);
    background: var(--card-bg);
}

footer a {
    color: var(--primary-color);
    font-weight: 500;
}

footer a:hover {
    text-decoration: underline;
}

.btn {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.8rem;
    transition: background var(--transition-speed);
}

.btn:hover {
    background-color: var(--primary-hover);
}

@media (max-width: 505px) {
    .hero {
        height: auto;
        padding: 2rem 1rem;
    }
    
    .hero h1 {
        font-size: 1.4rem;
    }

    .grid-menu {
        grid-template-columns: 1fr;
        margin-top: 5px;
        margin-bottom: 35px;
    }
}