/* =============================================
   Reset & Base
============================================= */
*, *::before, *::after { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: #0f0f13;
    color: #e4e4e4;
    min-height: 100vh;
}

/* =============================================
   Header
============================================= */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 14px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #2a2a4a;
    box-shadow: 0 2px 20px rgba(0,0,0,0.4);
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
    letter-spacing: 2px;
    background: linear-gradient(90deg, #4fc3f7, #7c4dff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =============================================
   Hamburger
============================================= */
.hamburger {
    font-size: 22px;
    cursor: pointer;
    user-select: none;
    padding: 6px 10px;
    border-radius: 8px;
    transition: background 0.2s;
}
.hamburger:hover { background: rgba(255,255,255,0.08); }

/* =============================================
   Navbar
============================================= */
.navbar {
    position: fixed;
    top: 57px;
    left: -270px;
    width: 260px;
    height: calc(100% - 57px);
    background: linear-gradient(180deg, #1a1a2e 0%, #0f0f1a 100%);
    display: flex;
    flex-direction: column;
    padding-top: 12px;
    transition: left 0.3s cubic-bezier(0.4,0,0.2,1);
    z-index: 99;
    border-right: 1px solid #2a2a4a;
    overflow-y: auto;
}

.navbar a {
    color: #c0c0d0;
    padding: 14px 22px;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}
.navbar a:hover {
    background: rgba(79,195,247,0.08);
    color: #4fc3f7;
    border-left-color: #4fc3f7;
}
.navbar.open { left: 0; }

/* =============================================
   Login/Register im Header
============================================= */
.login-register {
    display: flex;
    gap: 8px;
    align-items: center;
}
.login-register button { margin: 0; padding: 8px 14px; font-size: 0.85rem; }
.user-greeting { font-size: 0.88rem; color: #9090b0; margin-right: 4px; }

/* =============================================
   Buttons
============================================= */
button {
    background: linear-gradient(135deg, #4fc3f7 0%, #7c4dff 100%);
    color: white;
    border: none;
    padding: 10px 18px;
    cursor: pointer;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: opacity 0.2s, transform 0.1s, box-shadow 0.2s;
    box-shadow: 0 2px 12px rgba(124,77,255,0.25);
}
button:hover {
    opacity: 0.9;
    box-shadow: 0 4px 20px rgba(124,77,255,0.4);
}
button:active { transform: scale(0.97); }

button.btn-secondary {
    background: #2a2a3e;
    box-shadow: none;
    border: 1px solid #3a3a5a;
}
button.btn-secondary:hover {
    background: #333350;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

button.btn-danger {
    background: linear-gradient(135deg, #f44336, #c62828);
    box-shadow: 0 2px 12px rgba(244,67,54,0.3);
}

/* =============================================
   Main
============================================= */
main { padding: 30px 20px; }

/* =============================================
   Hero (Startseite)
============================================= */
.hero {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 100px);
}
.hero-box {
    text-align: center;
    padding: 50px 40px;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border: 1px solid #2a2a4a;
    border-radius: 20px;
    max-width: 480px;
    width: 100%;
    box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}
.hero-icon { font-size: 4rem; margin-bottom: 12px; }
.hero-box h2 { font-size: 1.8rem; margin: 0 0 12px; color: #fff; }
.hero-box p { color: #8888aa; margin-bottom: 28px; line-height: 1.6; }
.hero-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* =============================================
   Form Container
============================================= */
.form-container {
    max-width: 460px;
    margin: 50px auto;
    padding: 36px 32px;
    border-radius: 16px;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border: 1px solid #2a2a4a;
    box-shadow: 0 8px 40px rgba(0,0,0,0.4);
}
.form-icon { font-size: 2.5rem; text-align: center; margin-bottom: 8px; }
.form-container h2 { text-align: center; margin: 0 0 24px; color: #fff; }

.form-container label {
    display: block;
    margin: 12px 0 5px;
    font-size: 0.88rem;
    color: #9090b0;
    font-weight: 500;
}

.form-container input,
.form-container select,
.form-container textarea {
    width: 100%;
    padding: 11px 14px;
    border-radius: 8px;
    border: 1px solid #2a2a4a;
    background: #0f0f1a;
    color: #e4e4e4;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-container input:focus,
.form-container select:focus,
.form-container textarea:focus {
    outline: none;
    border-color: #7c4dff;
    box-shadow: 0 0 0 3px rgba(124,77,255,0.15);
}
.form-container button { width: 100%; margin-top: 16px; }
.form-container a { color: #4fc3f7; text-decoration: none; }
.form-container a:hover { text-decoration: underline; }
.form-container p { text-align: center; margin-top: 18px; font-size: 0.9rem; color: #7070a0; }

/* =============================================
   Fehler & Erfolg
============================================= */
.errors {
    background: rgba(244,67,54,0.1);
    color: #ff8a8a;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    border: 1px solid rgba(244,67,54,0.3);
    font-size: 0.9rem;
}
.errors p { margin: 3px 0; }
.success-box {
    background: rgba(76,175,80,0.1);
    color: #81c784;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    border: 1px solid rgba(76,175,80,0.3);
    font-size: 0.9rem;
}

/* =============================================
   Kategorie-Auswahl
============================================= */
.kategorie-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}
.kategorie-card {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border: 1px solid #2a2a4a;
    border-radius: 14px;
    padding: 24px 16px 16px;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.kategorie-card:hover {
    transform: translateY(-3px);
    border-color: #4fc3f7;
    box-shadow: 0 6px 24px rgba(79,195,247,0.15);
}
.kat-emoji { font-size: 2.4rem; display: block; margin-bottom: 10px; }
.sub-hint { font-size: 0.78rem; color: #555570; margin-top: 8px; display: block; }

.subkategorie-grid {
    display: none;
    grid-column: 1 / -1;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px;
    padding: 10px 4px 4px;
    animation: fadeIn 0.2s ease;
}
.subkategorie-grid.open { display: grid; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }

.sub-btn {
    width: 100%;
    background: #1e1e32;
    border: 1px solid #2a2a4a;
    color: #c0c0d0;
    font-size: 0.9rem;
    padding: 11px 10px;
    border-radius: 8px;
    box-shadow: none;
    transition: all 0.2s;
}
.sub-btn:hover { background: #252540; border-color: #7c4dff; color: #fff; }

/* =============================================
   Quiz Box
============================================= */
.quiz-box {
    max-width: 620px;
    margin: 40px auto;
    padding: 36px;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border: 1px solid #2a2a4a;
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.4);
}
.quiz-progress {
    font-size: 0.83rem;
    color: #6060a0;
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}
.progress-bar-wrap {
    background: #1e1e32;
    border-radius: 8px;
    height: 8px;
    margin-bottom: 28px;
    overflow: hidden;
    border: 1px solid #2a2a4a;
}
.progress-bar-fill {
    background: linear-gradient(90deg, #4fc3f7, #7c4dff);
    height: 100%;
    border-radius: 8px;
    transition: width 0.5s cubic-bezier(0.4,0,0.2,1);
}
.quiz-frage {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 24px;
    line-height: 1.6;
    color: #fff;
}
.antwort-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    text-align: left;
    margin-bottom: 10px;
    padding: 14px 18px;
    background: #1e1e32;
    border: 1px solid #2a2a4a;
    border-radius: 10px;
    color: #c0c0d0;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.18s;
    box-shadow: none;
}
.antwort-btn:hover {
    background: #252545;
    border-color: #7c4dff;
    color: #fff;
    box-shadow: 0 2px 16px rgba(124,77,255,0.2);
}
.antwort-letter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #2a2a4a;
    color: #9090c0;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
    transition: all 0.18s;
}
.antwort-btn:hover .antwort-letter {
    background: #7c4dff;
    color: #fff;
}

/* =============================================
   Ergebnis
============================================= */
.result-box {
    max-width: 560px;
    margin: 50px auto;
    padding: 44px 36px;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border: 1px solid #2a2a4a;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}
.result-trophy { font-size: 4rem; margin-bottom: 10px; }
.result-box h2 { margin: 0 0 6px; font-size: 1.6rem; color: #fff; }
.result-score { font-size: 3.2rem; font-weight: 800; margin: 16px 0 4px; }
.result-label { font-size: 1rem; color: #7070a0; margin-bottom: 4px; }
.result-note { font-size: 1.2rem; font-weight: 600; margin-bottom: 20px; }
.result-detail {
    background: #13131f;
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 24px;
    text-align: left;
    border: 1px solid #2a2a4a;
}
.result-detail table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.result-detail th { color: #6060a0; font-weight: 500; padding: 8px 10px; border-bottom: 1px solid #2a2a4a; }
.result-detail td { padding: 9px 10px; border-bottom: 1px solid #1e1e32; vertical-align: top; }

/* =============================================
   Admin – Stats
============================================= */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
    margin: 24px 0;
}
.stat-card {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border: 1px solid #2a2a4a;
    border-radius: 12px;
    padding: 22px 16px;
    text-align: center;
    transition: transform 0.2s;
}
.stat-card:hover { transform: translateY(-2px); }
.stat-card .num { font-size: 2.2rem; font-weight: 800; background: linear-gradient(135deg, #4fc3f7, #7c4dff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-card .slabel { font-size: 0.82rem; color: #6060a0; margin-top: 4px; }

.admin-nav-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; margin-top: 10px; }
.admin-nav-grid a { text-decoration: none; }
.admin-nav-grid button { width: 100%; font-size: 1rem; padding: 16px; }

/* =============================================
   Admin – Tabellen
============================================= */
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; margin-top: 16px; }
.admin-table th {
    background: #13131f;
    padding: 11px 14px;
    text-align: left;
    color: #6060a0;
    border-bottom: 2px solid #2a2a4a;
    font-weight: 500;
}
.admin-table td { padding: 10px 14px; border-bottom: 1px solid #1e1e2e; vertical-align: top; }
.admin-table tr:hover td { background: #13131f; }

/* Antwort-Zeilen im Fragen-Formular */
.antwort-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.antwort-row input[type="text"] { flex: 1; margin-bottom: 0; }
.antwort-row input[type="radio"] { width: 18px; height: 18px; accent-color: #7c4dff; flex-shrink: 0; }

/* =============================================
   Paginierung
============================================= */
.pagination { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 20px; align-items: center; }
.pagination a, .pagination span {
    display: inline-block;
    padding: 7px 13px;
    border-radius: 7px;
    text-decoration: none;
    font-size: 0.88rem;
    border: 1px solid #2a2a4a;
    color: #c0c0d0;
    background: #1a1a2e;
    transition: all 0.15s;
}
.pagination a:hover { background: #252545; border-color: #7c4dff; color: #fff; }
.pagination span.aktiv { background: linear-gradient(135deg, #4fc3f7, #7c4dff); border-color: transparent; color: #fff; font-weight: 700; }

/* =============================================
   Fehlerseite
============================================= */
.error-page {
    max-width: 460px;
    margin: 100px auto;
    text-align: center;
    padding: 50px 36px;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border: 1px solid #2a2a4a;
    border-radius: 20px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}
.error-icon { font-size: 3.5rem; margin-bottom: 12px; }
.error-page h2 { color: #ff8a8a; font-size: 1.5rem; margin: 0 0 12px; }
.error-page p { color: #7070a0; margin-bottom: 24px; line-height: 1.6; }

/* =============================================
   Responsive
============================================= */
@media (max-width: 600px) {
    .kategorie-grid { grid-template-columns: 1fr 1fr; }
    .quiz-box, .result-box, .form-container { margin: 16px 12px; padding: 22px 16px; }
    .hero-box { margin: 16px; padding: 32px 20px; }
}