/* ================================ */
/* BASIS & VARIABLEN               */
/* ================================ */
:root {
    --primary: #ffffff;
    --secondary: #e0e0e0;
    --dark: #000000;
    --bg-light: #f8f8f8;

    --accent: #4f7ea8;
    --accent-2: #6ea6c9;

    --card-bg: rgba(255, 255, 255, 0.9);
    --radius: 12px;

    --max-width: 1100px;
    --transition: 0.3s ease;
}

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

body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg-light);
    color: #222;
    line-height: 1.5;
}

/* ================================ */
/* TOP-BANNER                       */
/* ================================ */
.top-banner {
    background: #000;
    color: #c30000;
    text-align: center;
    padding: 0.5rem;
    font-size: 1rem;
}
.top-banner u { text-decoration: underline; }

/* ================================ */
/* NAVIGATION                       */
/* ================================ */
.nav {
    width: 100%;
    background: #000;
    border-bottom: 1px solid #333;
    display: flex;
    justify-content: center;
    padding: 12px 0;
}

.nav-inner {
    max-width: 900px;
    width: 100%;
    display: flex;
    gap: 24px;
    justify-content: flex-start;
    align-items: center;
}

.nav-inner a {
    color: var(--primary);
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
    letter-spacing: 0.5px;
    transition: var(--transition);
}
.nav-inner a:hover {
    text-decoration: underline;
}

/* ================================ */
/* HERO PROJEKTINFO                 */
/* ================================ */
.hero-projektinfo {
    width: 100%;
    height: 1120px;
    background-image: url('../img/header.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
}

.hero-projektinfo .hero-overlay {
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.45);
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 12vh 20px 40px 20px;
    text-align: center;
    color: var(--primary);
}

.hero-projektinfo .hero-overlay .hero-content {
    max-width: 1100px;
    margin: 0 auto;
}

.hero-projektinfo .hero-overlay h1 {
    font-size: 78px;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.hero-projektinfo .hero-overlay h2 {
    font-size: 48px;
    margin-bottom: 25px;
    letter-spacing: 2px;
}

.hero-projektinfo .hero-overlay h3 {
    font-size: 32px;
    margin: 25px 0 15px 0;
}

.hero-projektinfo .hero-overlay p {
    font-size: 20px;
    margin-bottom: 25px;
    line-height: 1.7;
}

.hero-projektinfo .hero-overlay ul {
    text-align: left;
    max-width: 800px;
    margin: 20px auto;
    font-size: 18px;
    line-height: 1.6;
    padding-left: 20px;
}

.hero-projektinfo .hero-overlay ul li {
    margin-bottom: 12px;
}

.hero-projektinfo .hero-overlay a {
    color: #a4dafc;
    text-decoration: underline;
    transition: var(--transition);
}
.hero-projektinfo .hero-overlay a:hover {
    opacity: 0.7;
}

/* ================================ */
/* SECTIONS / CARDS                  */
/* ================================ */
.section {
    width: 100%;
    max-width: var(--max-width);
    margin: 40px auto;
    padding: 10px;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.card-inner {
    padding: 25px 30px;
}

/* ================================ */
/* BUTTONS                           */
/* ================================ */
.btn, .btn-primary {
    border-radius: 10px;
    padding: 9px 14px;
    cursor: pointer;
    font-weight: 700;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

/* ================================ */
/* FOOTER                            */
/* ================================ */
.footer {
    width: 100%;
    background: var(--dark);
    padding: 20px;
    text-align: center;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
    margin: 0 15px;
    font-size: 14px;
    font-weight: bold;
    transition: var(--transition);
}

.footer a:hover { opacity: 0.6; }

/* ================================ */
/* RESPONSIVE                        */
/* ================================ */
@media (max-width: 768px) {
    .hero-projektinfo .hero-overlay h1 {
        font-size: 42px;
    }
    .hero-projektinfo .hero-overlay h2 {
        font-size: 32px;
    }
    .hero-projektinfo .hero-overlay h3 {
        font-size: 24px;
    }
    .hero-projektinfo .hero-overlay p,
    .hero-projektinfo .hero-overlay ul {
        font-size: 16px;
    }
}

@media (max-width: 600px) {
    .nav-inner {
        flex-wrap: wrap;
        gap: 12px;
        padding: 12px;
    }

    .hero-projektinfo {
        height: auto;
    }

    .hero-projektinfo .hero-overlay {
        padding-top: 8vh;
    }
}

@media (max-width: 480px) {
    .hero-projektinfo .hero-overlay h1 {
        font-size: 32px;
    }
    .hero-projektinfo .hero-overlay h2 {
        font-size: 24px;
    }
    .hero-projektinfo .hero-overlay h3 {
        font-size: 20px;
    }
    .hero-projektinfo .hero-overlay p,
    .hero-projektinfo .hero-overlay ul {
        font-size: 14px;
    }
}