/* --- VARIABLEN & BASIS --- */
:root {
    --gold: #f1c40f;
    --gold-glow: rgba(241, 196, 15, 0.6);
    --schnee-weiss: #ecf0f1;
    --nacht-blau: #2c3e50;
    --erfolg-gruen: #27ae60;
    --fehler-rot: #c0392b;
    --missed-hell: #e74c3c;
    --locked-grau: #7f8c8d;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--nacht-blau);
    color: var(--schnee-weiss);
    text-align: center;
    /* Schneeeffekt Hintergrund */
    background-image: 
        radial-gradient(circle at 50% 50%, white 1px, transparent 1px),
        radial-gradient(circle at 20% 30%, white 1px, transparent 1px),
        radial-gradient(circle at 80% 70%, white 1px, transparent 1px);
    background-size: 500px 500px;
    animation: snow 15s linear infinite;
    overflow-x: hidden;
}

@keyframes snow {
    from { background-position: 0 0; }
    to { background-position: 500px 1000px; }
}

header {
    padding: 30px 20px;
    background: rgba(0, 0, 0, 0.4);
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    margin-bottom: 30px;
}

header h1 { margin: 0; font-size: 2rem; }
header nav { margin-top: 10px; font-size: 0.9rem; }
header a { color: var(--gold); text-decoration: none; font-weight: bold; }

main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- KALENDER GRID --- */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

/* --- BASIS KACHEL --- */
.day-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 20px;
    transition: all 0.3s ease;
    position: relative;
    backdrop-filter: blur(5px);
    min-height: 160px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.day-card h3 { font-size: 1.8rem; margin: 0; color: #fff; }
.day-card p { font-size: 1.1rem; margin: 5px 0; font-weight: bold; }

/* --- SPEZIAL-ZUSTÄNDE (PRIORISIERT) --- */

/* 1. HEUTE (Goldener Rahmen - IMMER sichtbar) */
.day-card.today {
    border: 4px solid var(--gold) !important;
    box-shadow: 0 0 20px var(--gold-glow);
    transform: scale(1.03);
    z-index: 5;
    background: rgba(241, 196, 15, 0.15);
}

.day-card.today::before {
    content: "HEUTE";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gold);
    color: #333;
    font-size: 0.7rem;
    font-weight: 900;
    padding: 2px 10px;
    border-radius: 10px;
    letter-spacing: 1px;
}

/* 2. ERLEDIGT (Grün) */
.day-card.completed {
    background-color: var(--erfolg-gruen);
    border-color: #2ecc71;
}

/* 3. VERPASST (Rot) */
.day-card.missed {
    background-color: var(--fehler-rot);
    border-color: var(--missed-hell);
}

/* 4. GESPERRT (Grau) */
.day-card.locked {
    background-color: var(--locked-grau);
    opacity: 0.5;
    cursor: not-allowed !important;
    filter: grayscale(100%);
}

/* --- FORMULAR ELEMENTE IN KACHELN --- */
.day-card form {
    margin-top: 10px;
}

.day-card input[type="url"] {
    width: 90%;
    padding: 6px;
    border-radius: 4px;
    border: none;
    font-size: 0.75rem;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.9);
}

.day-card button {
    width: 95%;
    padding: 8px;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}

/* --- RANGLISTE & CHAT SEKTIONEN --- */
.leaderboard-section {
    background: rgba(255, 255, 255, 0.08);
    padding: 30px;
    border-radius: 20px;
    margin: 40px 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.leaderboard-section h2 {
    color: var(--gold);
    margin-top: 0;
    font-size: 1.8rem;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
    color: #333;
    border-radius: 12px;
    overflow: hidden;
    margin-top: 20px;
}

th { background: #f2f2f2; padding: 15px; font-weight: bold; }
td { padding: 12px; border-top: 1px solid #eee; }

/* --- CHAT SPEZIAL --- */
#chatBox {
    scrollbar-width: thin;
    scrollbar-color: var(--gold) transparent;
}

#chatBox::-webkit-scrollbar { width: 6px; }
#chatBox::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 10px; }

/* --- MODAL (POP-UP) --- */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.85);
    backdrop-filter: blur(3px);
}

.modal-content {
    background-color: #fff;
    margin: 10% auto;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 450px;
    color: #333;
    position: relative;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.close {
    position: absolute;
    right: 20px; top: 15px;
    font-size: 30px;
    cursor: pointer;
    color: #999;
}

/* --- BADGES & LINKS --- */
.participant-badge {
    margin: 10px 0;
    font-weight: bold;
}

.day-card a {
    text-decoration: none;
    font-weight: bold;
}

/* Responsivität für kleine Bildschirme */
@media (max-width: 600px) {
    .calendar-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .day-card { padding: 10px; min-height: 140px; }
    header h1 { font-size: 1.5rem; }
}

.status-msg {
    display: block; /* Sicherstellen, dass es kein hidden gibt */
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 0.9em;
    font-weight: bold; /* Text fetten für bessere Sichtbarkeit */
    border: 1px solid;
}

/* Kräftigere Farben für den Kontrast auf weißem Grund */
.success { 
    background-color: #d4edda; 
    color: #155724; 
    border-color: #c3e6cb; 
}
.error { 
    background-color: #f8d7da; 
    color: #721c24; 
    border-color: #f5c6cb; 
}