:root {
    --bg-main: #0d1117; --bg-card: #161b22; --border: #30363d; --text-main: #c9d1d9;
    --text-muted: #8b949e; --accent: #2196F3; --accent-hover: #1976D2;
    --green: #00e676; --yellow: #ffb300; --red: #ff5252; --dimmed: #222222;
}

body { margin: 0; padding: 0; background-color: var(--bg-main); color: var(--text-main); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; display: flex; flex-direction: column; min-height: 100vh; }

/* SPRACH-STEUERUNG */
html[lang="de"] .lang-en { display: none !important; }
html[lang="en"] .lang-de { display: none !important; }

.lang-switcher { display: flex; gap: 8px; margin-left: 20px; border-left: 1px solid var(--border); padding-left: 20px; }
.lang-btn { background: transparent; border: 1px solid var(--border); color: var(--text-muted); cursor: pointer; padding: 4px 8px; border-radius: 4px; font-size: 12px; font-weight: bold; transition: all 0.2s; }
.lang-btn:hover { color: white; border-color: var(--text-main); }
.lang-btn.active { background: var(--accent); color: white; border-color: var(--accent); }

/* Navigation */
.navbar { display: flex; justify-content: space-between; align-items: center; padding: 20px 50px; background-color: var(--bg-card); border-bottom: 1px solid var(--border); }
.logo-container { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-img { width: 32px; height: 32px; }
.logo { font-size: 24px; font-weight: 800; color: white; letter-spacing: 1px; }
.logo span { color: var(--accent); }
.nav-links { display: flex; align-items: center; }
.nav-links a { color: var(--text-main); text-decoration: none; margin-left: 30px; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: white; }
.btn-primary { background-color: var(--accent); color: white !important; padding: 10px 20px; border-radius: 6px; text-decoration: none; font-weight: bold; transition: background 0.2s; }
.btn-primary:hover { background-color: var(--accent-hover); }

/* Page Layout */
.container { max-width: 1100px; margin: 0 auto; padding: 60px 20px; flex: 1; }
.hero { text-align: center; padding: 80px 20px; }
.hero h1 { font-size: 48px; color: white; margin-bottom: 20px; }
.hero p { font-size: 20px; color: var(--text-muted); max-width: 600px; margin: 0 auto 40px auto; }
.page-title { font-size: 32px; color: white; border-bottom: 1px solid var(--border); padding-bottom: 10px; margin-bottom: 30px; }
.card { background-color: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 30px; margin-bottom: 20px; }
.card h2 { color: var(--accent); margin-top: 0; }

/* Formulare */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; }
.form-control { width: 100%; padding: 12px; background-color: var(--bg-main); border: 1px solid var(--border); color: white; border-radius: 6px; box-sizing: border-box; font-family: inherit; }
.form-control:focus { outline: none; border-color: var(--accent); }

/* Footer */
.footer { text-align: center; padding: 30px; border-top: 1px solid var(--border); background-color: var(--bg-card); color: var(--text-muted); margin-top: auto; }
.footer a { color: var(--text-muted); text-decoration: none; margin: 0 10px; }
.footer a:hover { color: white; }

/* Dashboard Marktlage */
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 20px; max-width: 1400px; margin: 0 auto 30px auto; }
.chart-grid { display: grid; grid-template-columns: 1fr; gap: 30px; max-width: 1400px; margin: 0 auto 40px auto; }
.metric { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px dashed var(--border); }
.metric:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.metric-info { flex: 1; padding-right: 15px; }
.metric-info label { font-weight: bold; font-size: 1.1rem; display: block; margin-bottom: 4px; color: white; }
.info-text { font-size: 0.85rem; color: var(--text-muted); }
.value { font-family: monospace; font-size: 1.3rem; font-weight: bold; padding: 8px 12px; border-radius: 5px; background: var(--bg-main); min-width: 60px; text-align: center; border: 1px solid var(--border); }
.ampel-section { display: flex; flex-direction: column; align-items: center; background: var(--bg-card); max-width: 400px; margin: 0 auto 40px auto; padding: 20px; border-radius: 10px; border: 1px solid var(--border); }
.ampel-gehaeuse { background: #000; padding: 15px; border-radius: 20px; display: flex; flex-direction: column; gap: 15px; border: 2px solid var(--border); margin-bottom: 15px; }
.licht { width: 60px; height: 60px; border-radius: 50%; background: var(--dimmed); }
.active-green { background: var(--green); box-shadow: 0 0 20px var(--green); }
.active-yellow { background: var(--yellow); box-shadow: 0 0 20px var(--yellow); }
.active-red { background: var(--red); box-shadow: 0 0 20px var(--red); }
.fazit { font-size: 1.3rem; font-weight: bold; text-align: center; }
canvas { background: var(--bg-main); border-radius: 8px; padding: 10px; width: 100%; border: 1px solid var(--border); }
.time-toggle { text-align: center; margin-bottom: 20px; display: flex; justify-content: center; align-items: center; gap: 10px; }
.time-toggle button { background: var(--bg-main); color: white; border: 1px solid var(--border); padding: 8px 16px; border-radius: 5px; cursor: pointer; font-weight: bold; transition: 0.3s; }
.time-toggle button:hover { background: #333; }
.time-toggle button.active { background: var(--accent); border-color: var(--accent); }