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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #0b0d10;
    color: #f2f2f2;
    line-height: 1.6;
}


/* =========================
   HEADER
   ========================= */

header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 13, 16, 0.96);
    border-bottom: 1px solid #252a31;
}

nav {
    max-width: 1300px;
    margin: auto;
    padding: 22px 40px;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: #aaa;
    text-decoration: none;
    transition: 0.2s;
}

.nav-links a:hover {
    color: #ffffff;
}


/* =========================
   HERO
   ========================= */

.hero {
    min-height: calc(100vh - 70px);

    max-width: 1300px;
    margin: auto;

    padding: 100px 40px;

    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 850px;
}

.eyebrow,
.section-label {
    color: #4ade80;

    font-size: 14px;
    font-weight: 700;

    letter-spacing: 2px;

    margin-bottom: 22px;
}

h1 {
    font-size: clamp(52px, 7vw, 94px);

    line-height: 0.98;

    letter-spacing: -4px;

    margin-bottom: 35px;
}

.hero-text {
    max-width: 720px;

    color: #aeb4bc;

    font-size: 20px;

    line-height: 1.7;

    margin-bottom: 38px;
}


/* =========================
   BUTTONS
   ========================= */

.hero-buttons {
    display: flex;

    gap: 15px;

    flex-wrap: wrap;
}

.button {
    display: inline-block;

    padding: 13px 24px;

    background: #f2f2f2;

    color: #0b0d10;

    text-decoration: none;

    font-weight: 700;

    border-radius: 6px;

    transition:
        transform 0.2s,
        background 0.2s;
}

.button:hover {
    transform: translateY(-2px);
}

.button.secondary {
    background: transparent;

    color: #f2f2f2;

    border: 1px solid #444;
}

.button.secondary:hover {
    background: #15191f;
}


/* =========================
   PRAKTIKUM HINWEIS
   ========================= */

.looking-for {
    margin-top: 30px;

    color: #4ade80;

    font-size: 15px;

    font-weight: 600;

    letter-spacing: 0.5px;
}


/* =========================
   SECTIONS
   ========================= */

.section {
    max-width: 1300px;

    margin: auto;

    padding: 120px 40px;

    border-top: 1px solid #252a31;
}

h2 {
    font-size: clamp(40px, 5.5vw, 70px);

    line-height: 1.05;

    letter-spacing: -2px;

    margin-bottom: 40px;
}

.section-text {
    max-width: 720px;

    color: #aeb4bc;

    font-size: 18px;

    line-height: 1.7;

    margin-bottom: 22px;
}


/* =========================
   SKILLS
   ========================= */

.skills {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 20px;

    margin-top: 50px;
}

.skill {
    border: 2px solid #4ade80;

    padding: 32px;

    border-radius: 8px;

    background: #101318;

    box-shadow:
        0 0 12px rgba(74, 222, 128, 0.12);

    transition:
        transform 0.2s,
        box-shadow 0.2s,
        background 0.2s;
}

.skill:hover {
    transform: translateY(-5px);

    background: #121a15;

    box-shadow:
        0 0 20px rgba(74, 222, 128, 0.25);
}

.skill h3 {
    font-size: 25px;

    color: #f2f2f2;
}/* =========================
   PROJEKTE
   ========================= */

.projects {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 20px;

    margin-top: 50px;
}

.project {
    border: 1px solid #292e35;

    padding: 32px;

    border-radius: 8px;

    background: #101318;

    transition:
        transform 0.2s,
        border-color 0.2s;
}

.project:hover {
    transform: translateY(-4px);

    border-color: #3d4650;
}

.project-number {
    color: #4ade80;

    margin-bottom: 25px;

    font-weight: 700;
}

.project h3 {
    font-size: 25px;

    margin-bottom: 15px;
}

.project p {
    color: #aeb4bc;

    line-height: 1.7;
}


/* =========================
   TAGS
   ========================= */

.tags {
    display: flex;

    gap: 8px;

    flex-wrap: wrap;

    margin-top: 25px;
}

.tags span {
    padding: 5px 10px;

    border: 1px solid #333;

    border-radius: 20px;

    color: #aaa;

    font-size: 12px;
}


/* =========================
   KONTAKT
   ========================= */

.contact {
    padding-bottom: 160px;
}


/* =========================
   FOOTER
   ========================= */

footer {
    border-top: 1px solid #252a31;

    max-width: 1300px;

    margin: auto;

    padding: 30px 40px;

    display: flex;

    justify-content: space-between;

    color: #666;

    font-size: 14px;
}


/* =========================
   MOBILE
   ========================= */

@media (max-width: 900px) {

    nav {
        padding: 20px 25px;
    }

    .nav-links {
        display: none;
    }

    .hero {
        min-height: 75vh;

        padding: 80px 25px;
    }

    h1 {
        letter-spacing: -2px;
    }

    .section {
        padding: 90px 25px;
    }

    .skills,
    .projects {
        grid-template-columns: 1fr;
    }

    footer {
        padding: 30px 25px;

        flex-direction: column;

        gap: 10px;
    }
}


@media (max-width: 500px) {

    h1 {
        font-size: 48px;
    }

    h2 {
        font-size: 40px;
    }

    .hero-text {
        font-size: 18px;
    }

    .button {
        width: 100%;

        text-align: center;
    }

    .hero-buttons {
        width: 100%;
    }
}