:root {
    --primary: #00bcd4;
    --secondary: #ff9800;
    --bg-dark: #121212;
    --bg-light: #1f1f1f;
    --text: #e0e0e0;
    --text-muted: #bbb;
    --radius: 12px;
    --max-width: 1200px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 0 16px;
}

header {
    background-color: var(--bg-light);
    padding: 40px 0;
    text-align: center;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 40px;
    letter-spacing: 2px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    color: transparent;
}

nav {
    display: flex;
    justify-content: center;
    background-color: #1a1a1a;
    padding: 10px 0;
    gap: 10px;
    flex-wrap: wrap;
}

nav a {
    color: var(--text);
    padding: 12px 20px;
    border-radius: var(--radius);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

nav a:hover {
    background: var(--primary);
    color: #fff;
}

nav a.active {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: #fff;
}

main {
    max-width: var(--max-width);
    margin: 40px auto;
    width: 100%;
    flex: 1;
}

.intro {
    text-align: center;
    margin-bottom: 50px;
    padding: 0 20px;
}

.intro h2 {
    font-size: 34px;
    color: var(--primary);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.intro p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

.cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    padding: 20px;
}

.card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    width: 300px;
    text-align: center;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 16px 32px rgba(0, 188, 212, 0.4);
}

.card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #ffffff;
}

.card p {
    font-size: 16px;
    color: var(--text-muted);
}

.contact-info {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary);
    text-align: center;
}

.contact-info p {
    font-size: 16px;
    margin-bottom: 12px;
}

.contact-info a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
}

.contact-info a::after {
    content: '';
    display: block;
    height: 2px;
    background: var(--secondary);
    transition: width 0.3s ease;
    width: 0;
}

.contact-info a:hover::after {
    width: 100%;
}

footer {
    background-color: var(--bg-light);
    color: var(--text);
    text-align: center;
    padding: 20px 10px;
    font-size: 14px;
    box-shadow: 0 -4px 8px rgba(0, 0, 0, 0.2);
    margin-top: 40px;
}

@media (max-width: 768px) {
    .cards {
        flex-direction: column;
        align-items: center;
    }

    .card {
        width: 90%;
    }
}

.card h3 a {
    color: #00bcd4;
    text-decoration: none;
    transition: color 0.3s ease;
}

.card h3 a:hover {
    color: #ff9800;
    text-decoration: underline;
}

.btn-download-cv {
    display: inline-block;
    padding: 10px 20px;
    background-color: #00bcd4;
    color: white;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.btn-download-cv:hover {
    background-color: #0097a7;
}