/* style.css */

:root, [data-bs-theme="dark"] {
    /* Deine MMIU-Farben */
    --bg-dark: #0f172a;
    --card-bg: #1e293b;
    --text-light: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --accent-geo: #10b981;
    --accent-stat: #f59e0b;
    --accent-alg: #ec4899;
    --accent-games: #8b5cf6;
    --accent-div: #06b6d4;
    --accent-archive: #64748b;

    /* Bootstrap 5 Theme-Variablen an dein Design anpassen */
    --bs-body-bg: var(--bg-dark);
    --bs-body-color: var(--text-light);
    --bs-card-bg: var(--card-bg);
    --bs-primary: var(--primary);
    --bs-secondary-color: var(--text-muted);
    --bs-border-color: #334155;
}

/* --- GLOBALE STYLES (für alle Seiten) --- */
* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }

body { 
    background-color: var(--bg-dark); 
    color: var(--text-light); 
    line-height: 1.6;
    padding: 20px; 
}

/* Zentraler Footer */
.mmiu-footer {
    max-width: 1200px; margin: 60px auto 20px auto; text-align: center;
    font-size: 0.85rem; color: var(--text-muted);
}

/* --- STARTSEITE (index.html) --- */
.index-header {
    max-width: 1200px; margin: 20px auto 40px auto; text-align: center;
    border-bottom: 1px solid var(--bs-border-color); padding-bottom: 20px;
}
.index-header h1 { font-size: 2.5rem; margin-bottom: 10px; color: #fff; }
.index-header p { color: var(--text-muted); font-size: 1.1rem; }

.mmiu-container { max-width: 1200px; margin: 0 auto; }
.mmiu-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 25px; }

/* Kacheln (umbenannt zu .mmiu-card, um Konflikte mit Bootstrap zu vermeiden) */
.mmiu-card {
    background-color: var(--card-bg); border-radius: 8px; padding: 25px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2); display: flex; flex-direction: column;
    justify-content: space-between; border-top: 4px solid var(--primary);
    transition: transform 0.2s, box-shadow 0.2s;
}
.mmiu-card:hover { transform: translateY(-4px); box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4); }
.mmiu-card.geometrie { border-top-color: var(--accent-geo); }
.mmiu-card.statistik { border-top-color: var(--accent-stat); }
.mmiu-card.algebra { border-top-color: var(--accent-alg); }
.mmiu-card.spiele { border-top-color: var(--accent-games); }
.mmiu-card.diverses { border-top-color: var(--accent-div); }
.mmiu-card.archiv { border-top-color: var(--accent-archive); }
.mmiu-card h2 { font-size: 1.4rem; margin-bottom: 12px; color: #fff; }
.mmiu-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 20px; flex-grow: 1; }

/* Buttons der Startseite */
.btn-list { display: flex; flex-direction: column; gap: 10px; }
.btn-mmiu {
    display: block; background-color: #334155; color: #fff; text-decoration: none;
    padding: 10px 15px; border-radius: 6px; font-size: 0.9rem; font-weight: 600;
    text-align: center; transition: background 0.2s; border: 1px solid #475569;
}
.btn-mmiu:hover { background-color: var(--primary); border-color: var(--primary); color:#fff; }

/* --- TOOLS (wie Hypothesentest) --- */
.tool-header { text-align: center; margin-top: 20px; margin-bottom: 30px; }
.tool-header h1 { font-weight: bold; color: #fff; }
.tool-header p { color: var(--text-muted); }