:root {
    --bg-dark: #07090e;
    --bg-card: #0d1118;
    --bg-input: #131822;
    --border-bronze: #8c7347;
    --border-tech: rgba(197, 160, 89, 0.4);
    --bronze: #d4af37;
    --bronze-hover: #e6c55c;
    --text-main: #f1f5f9;
    --text-muted: #8b9bb4;
    --accent-glow: rgba(212, 175, 55, 0.25);
    --font-mono: 'Consolas', 'Courier New', monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: 
        linear-gradient(rgba(197, 160, 89, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(197, 160, 89, 0.02) 1px, transparent 1px);
    background-size: 30px 30px;
}

/* Schmaler, technischer Header */
header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-bronze);
    padding: 8px 25px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7);
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-container img {
    width: 45px;
    height: 45px;
    object-fit: contain;
    filter: drop-shadow(0 0 6px var(--accent-glow));
}

nav.main-nav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

nav.main-nav a {
    color: var(--text-main);
    text-decoration: none;
    padding: 6px 14px;
    border: 1px solid var(--border-tech);
    border-radius: 2px;
    background: var(--bg-input);
    transition: all 0.2s ease;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-family: var(--font-mono);
}

nav.main-nav a:hover, nav.main-nav a.active {
    background-color: var(--bronze);
    color: var(--bg-dark);
    border-color: var(--bronze);
    box-shadow: 0 0 12px var(--accent-glow);
}

.container {
    max-width: 1400px;
    margin: 25px auto;
    padding: 0 20px;
    width: 100%;
    flex: 1;
}

h1, h2, h3 {
    color: var(--bronze);
    margin-bottom: 20px;
    letter-spacing: 1.5px;
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 1.25rem;
    border-left: 3px solid var(--bronze);
    padding-left: 10px;
}

/* Formulare & Inputs im Labor-Stil */
input, select, textarea {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 15px;
    background: var(--bg-input);
    border: 1px solid var(--border-tech);
    color: var(--text-main);
    border-radius: 2px;
    font-size: 0.95rem;
    font-family: var(--font-mono);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--bronze);
    box-shadow: 0 0 10px var(--accent-glow);
    background: #182030;
}

button, .btn {
    background: linear-gradient(135deg, #8c7347, var(--bronze));
    color: var(--bg-dark);
    padding: 10px 20px;
    border: 1px solid var(--border-bronze);
    border-radius: 2px;
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

button:hover, .btn:hover {
    background: var(--bronze-hover);
    box-shadow: 0 0 15px var(--accent-glow);
    border-color: var(--bronze-hover);
}

/* Technisches Tabellensystem */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-tech);
}

th, td {
    padding: 10px 14px;
    border: 1px solid rgba(197, 160, 89, 0.15);
    text-align: left;
    font-size: 0.9rem;
}

th {
    background-color: var(--bg-input);
    color: var(--bronze);
    font-family: var(--font-mono);
    letter-spacing: 1px;
}

/* Kachelansichten (Modul-Grid) */
.grid-24 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}

.tile {
    background: var(--bg-card);
    border: 1px solid var(--border-tech);
    padding: 15px;
    border-radius: 2px;
    text-align: center;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.tile:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--accent-glow);
    border-color: var(--bronze);
    background: #111622;
}

.tile h4 {
    color: var(--bronze);
    margin-bottom: 8px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    border-left: none;
    padding-left: 0;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-tech);
    padding-bottom: 8px;
}

.tab-btn {
    background: var(--bg-input);
    color: var(--text-main);
    border: 1px solid var(--border-tech);
    padding: 8px 16px;
    cursor: pointer;
    border-radius: 2px;
    font-weight: bold;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: all 0.2s;
}

.tab-btn.active {
    background: var(--bronze);
    color: var(--bg-dark);
    border-color: var(--bronze);
    box-shadow: 0 0 10px var(--accent-glow);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-tech);
    padding: 20px;
    border-radius: 2px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    margin-bottom: 20px;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--bronze);
}