:root {
    --color-clay: #76443f;
    --color-taupe: #99736f;
    --color-rosy: #bba29f;
    --color-white: #ffffff;
    --color-coffee: #321c1a;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --spacing-unit: 1rem;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-white);
    color: var(--color-coffee);
    line-height: 1.6;
}

header {
    background-color: var(--color-clay);
    color: var(--color-white);
    padding: 2rem 1rem;
    text-align: center;
    position: relative;
}

.login-link {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: var(--color-clay);
    background-color: var(--color-white);
    text-decoration: none;
    padding: 0.5rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: opacity 0.2s, transform 0.1s;
}

.login-link:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.about {
    text-align: center;
    max-width: 800px;
    margin: 3rem auto;
    padding: 2rem;
    background-color: #f9f9f9;
    border-radius: 8px;
    border-left: 5px solid var(--color-taupe);
}

.about h2 {
    color: var(--color-clay);
    margin-bottom: 1rem;
}

.projects {
    margin-top: 4rem;
}

.projects h2 {
    text-align: center;
    color: var(--color-clay);
    margin-bottom: 2rem;
    font-size: 2rem;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 1rem;
}

.card {
    background: var(--color-white);
    border: 1px solid #eee;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    border-color: var(--color-rosy);
}

.card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card h3 {
    color: var(--color-clay);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.card p {
    color: #666;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.card-link {
    display: inline-block;
    background-color: var(--color-taupe);
    color: var(--color-white);
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    transition: background-color 0.2s;
}

.card-link:hover {
    background-color: var(--color-clay);
}

footer {
    text-align: center;
    padding: 3rem 1rem;
    margin-top: 4rem;
    background-color: var(--color-coffee);
    color: var(--color-rosy);
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .card-content {
        padding: 1.5rem;
    }
}