:root {
    --bg-dark: #121212;
    --bg-dark-alt: #1a1a1a;
    --text-light: #f5f5f5;
    --text-muted: #cfcfcf;
    --accent-red: #c8102e;
    --accent-red-dark: #9f0d24;
    --border-dark: #2a2a2a;
    --white: #ffffff;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    background: var(--bg-dark);
    color: var(--text-light);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
}

a {
    color: var(--white);
    text-decoration: none;
    transition: all 0.25s ease;
}

a:hover {
    color: var(--accent-red);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Header */
header {
    background: rgba(18, 18, 18, 0.95);
    border-bottom: 1px solid var(--border-dark);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.logo a {
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.nav-link {
    color: var(--text-light);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    position: relative;
    padding: 0.75rem 1rem;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--white);
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 1rem;
    bottom: 0.35rem;
    width: 0;
    height: 2px;
    background: var(--accent-red);
    transition: width 0.25s ease;
}

.nav-link:hover::after,
.nav-link:focus::after {
    width: calc(100% - 2rem);
}

/* Hero */
section {
    position: relative;
}

section.container-fluid,
main section {
    background: var(--bg-dark);
    padding-top: 5rem;
    padding-bottom: 5rem;
}

/* Diagonaler roter Trenner */
section::after,
main section::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -18px;
    transform: translateX(-50%) skewX(-35deg);
    width: min(92%, 1200px);
    height: 3px;
    background: linear-gradient(
            90deg,
            transparent 0%,
            var(--accent-red) 15%,
            var(--accent-red) 85%,
            transparent 100%
    );
    z-index: 2;
}

section:last-of-type::after,
main section:last-of-type::after {
    display: none;
}

.bg-light {
    background: linear-gradient(180deg, var(--bg-dark-alt) 0%, var(--bg-dark) 100%) !important;
    color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--white);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.4rem, 5vw, 4.5rem);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

h2 {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.lead {
    color: var(--white);
    font-size: 1.15rem;
    max-width: 850px;
    margin: 0 auto;
}

/* Buttons */
.btn,
button {
    display: inline-block;
    background: var(--accent-red);
    color: var(--white);
    border: 1px solid var(--accent-red);
    padding: 0.85rem 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: all 0.25s ease;
}

.btn:hover,
button:hover {
    background: var(--accent-red-dark);
    border-color: var(--accent-red-dark);
    color: var(--white);
}

/* Content-Bereich */
main {
    position: relative;
    z-index: 1;
}

main section {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

/* Karten / Contentboxen */
.card,
.content-box {
    background: var(--bg-dark-alt);
    border: 1px solid var(--border-dark);
    color: var(--text-light);
    padding: 2rem;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover,
.content-box:hover {
    transform: translateY(-4px);
    border-color: var(--accent-red);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

/* Footer */
footer {
    background: #0e0e0e !important;
    border-top: 1px solid var(--border-dark);
    color: var(--text-muted);
}

footer p {
    margin: 0;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 991.98px) {
    header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        justify-content: center;
    }
}

@media (max-width: 767.98px) {
    .nav {
        flex-direction: column;
        align-items: center;
    }

    .nav-link {
        padding: 0.5rem 0;
    }

    .nav-link::after {
        left: 0;
        bottom: -0.1rem;
    }

    .nav-link:hover::after,
    .nav-link:focus::after {
        width: 100%;
    }

    section.container-fluid,
    main section {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }

    section::after,
    main section::after {
        width: 88%;
    }
}
/* ===== Hero ===== */
.hero-section {
    min-height: 100vh;
    background: radial-gradient(1200px 600px at 50% 10%, #1b1b1b 0%, var(--bg-dark) 60%);
}

.hero-brand {
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: 0.06em;
}

.hero-brand-flex {
    color: var(--accent-red);
}

.hero-brand-box {
    color: var(--white);
}

.hero-image-placeholder {
    width: 100%;
    max-width: 720px;
    height: 260px;
    border: 1px dashed var(--border-dark);
    background: var(--bg-dark-alt);
    color: var(--text-muted);
}

.hero-kicker {
    color: var(--text-muted);
    letter-spacing: 0.2em;
    font-size: 0.9rem;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3.2rem);
}

.hero-subline span {
    color: var(--white);
    font-size: 0.95rem;
    letter-spacing: 0.15em;
}

.hero-divider {
    color: var(--accent-red);
}

/* Scroll down */
.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
}

.scroll-down-label {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
}

.scroll-down-icon {
    width: 20px;
    height: 30px;
    border: 2px solid var(--text-muted);
    border-radius: 10px;
    margin-top: 6px;
    position: relative;
}

.scroll-down-icon::after {
    content: "";
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 2px;
}

/* ===== Sections ===== */
.section-divider {
    position: relative;
}

.section-divider::before {
    content: "";
    position: absolute;
    top: -30px;
    left: 0;
    width: 100%;
    height: 60px;
    background: linear-gradient(135deg, transparent 48%, var(--accent-red) 50%, transparent 52%);
    opacity: 0.6;
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.section-kicker {
    font-size: 0.8rem;
    letter-spacing: 0.25em;
    color: var(--accent-red);
}

.content-image {
    height: 280px;
    background: var(--bg-dark-alt);
    border: 1px dashed var(--border-dark);
    color: var(--text-muted);
}

/* ===== Footer diagonal ===== */
.footer-diagonal {
    position: relative;
    background: var(--accent-red);
    color: var(--white);
}

.footer-diagonal::before {
    content: "";
    position: absolute;
    top: -60px;
    left: 0;
    width: 100%;
    height: 60px;
    background: linear-gradient(135deg, transparent 48%, var(--accent-red) 50%);
}

.footer-title,
.footer-subtitle {
    color: var(--white);
}

.footer-text {
    color: rgba(255,255,255,0.85);
}

.footer-nav a {
    color: var(--white);
    opacity: 0.9;
}

.footer-nav a:hover {
    color: #000;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.8);
}