/* Variables CSS */
:root {
    --christmas-red: #c41e3a;
    --christmas-green: #2e7d32;
    --christmas-gold: #ffd700;
    --snow-white: #ffffff;
    --warm-cream: #fef7e8;
    --dark-green: #1b5e20;
    --light-blue: #e3f2fd;
    --shadow-color: rgba(0, 0, 0, 0.2);
}

/* Reset i base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Comic Neue', cursive;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--warm-cream) 50%, var(--christmas-green) 100%);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Efecte de neu animada */
.snow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    pointer-events: none;
    z-index: 1;
}

.snow {
    position: absolute;
    top: -10px;
    background: white;
    border-radius: 50%;
    opacity: 0.8;
    animation: snowfall 10s linear infinite;
}

.snow:nth-child(1) {
    left: 10%;
    width: 4px;
    height: 4px;
    animation-duration: 8s;
    animation-delay: 0s;
}

.snow:nth-child(2) {
    left: 30%;
    width: 6px;
    height: 6px;
    animation-duration: 12s;
    animation-delay: 2s;
}

.snow:nth-child(3) {
    left: 70%;
    width: 3px;
    height: 3px;
    animation-duration: 15s;
    animation-delay: 4s;
}

@keyframes snowfall {
    0% { transform: translateY(-100vh) rotate(0deg); }
    100% { transform: translateY(100vh) rotate(360deg); }
}

/* Header */
.header {
    text-align: center;
    padding: 2rem 1rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px var(--shadow-color);
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.main-title {
    font-family: 'Mountains of Christmas', serif;
    font-size: 3rem;
    color: var(--christmas-red);
    text-shadow: 2px 2px 4px var(--shadow-color);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.main-title .fas {
    color: var(--christmas-gold);
    animation: paw-wiggle 2s ease-in-out infinite alternate;
}

@keyframes paw-wiggle {
    0% { transform: rotate(-10deg) scale(1); }
    100% { transform: rotate(10deg) scale(1.1); }
}

.subtitle {
    font-size: 1.2rem;
    color: var(--dark-green);
    font-weight: 700;
    margin-bottom: 1rem;
}

.mystery-intro {
    background: linear-gradient(45deg, var(--warm-cream), #fff);
    padding: 1.5rem;
    border-radius: 20px;
    border: 3px solid var(--christmas-gold);
    box-shadow: 0 6px 20px var(--shadow-color);
    max-width: 800px;
    margin: 0 auto;
}

.mystery-intro p {
    margin-bottom: 0.5rem;
    color: var(--dark-green);
    font-size: 1.1rem;
}

/* Calendari */
.calendar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem 2rem;
    position: relative;
    z-index: 2;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    justify-items: center;
}

.day-card {
    width: 150px;
    height: 150px;
    background: linear-gradient(45deg, var(--christmas-red), #ff6b6b);
    border: 4px solid var(--christmas-gold);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px var(--shadow-color);
    position: relative;
    overflow: hidden;
}

.day-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--christmas-gold), var(--christmas-red), var(--christmas-green));
    z-index: -1;
    border-radius: 20px;
}

.day-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 15px 30px var(--shadow-color);
}

.day-card.available {
    background: linear-gradient(45deg, var(--christmas-green), #4caf50);
    animation: pulse-available 2s ease-in-out infinite;
}

.day-card.available:hover {
    animation: none;
}

@keyframes pulse-available {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.day-card.disabled {
    background: linear-gradient(45deg, #888, #aaa);
    cursor: not-allowed;
    opacity: 0.6;
}

.day-card.opened {
    background: linear-gradient(45deg, var(--christmas-gold), #ffeb3b);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4);
}

.day-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--snow-white);
    text-shadow: 2px 2px 4px var(--shadow-color);
    margin-bottom: 0.5rem;
}

.day-icon {
    font-size: 1.5rem;
    color: var(--snow-white);
}

.day-card.opened .day-icon {
    color: var(--dark-green);
}

.day-status {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--christmas-gold);
    color: var(--dark-green);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: bold;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: linear-gradient(135deg, var(--warm-cream), var(--snow-white));
    margin: 5% auto;
    padding: 0;
    border: 4px solid var(--christmas-gold);
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 40px var(--shadow-color);
    animation: modal-appear 0.3s ease;
}

@keyframes modal-appear {
    from { opacity: 0; transform: scale(0.7) translateY(-50px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    background: linear-gradient(45deg, var(--christmas-red), var(--christmas-green));
    color: var(--snow-white);
    padding: 1.5rem;
    border-radius: 16px 16px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-family: 'Mountains of Christmas', serif;
    font-size: 2rem;
    text-shadow: 2px 2px 4px var(--shadow-color);
}

.close {
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.close:hover {
    transform: scale(1.2) rotate(90deg);
}

.modal-body {
    padding: 2rem;
    color: var(--dark-green);
    line-height: 1.6;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 0 0 16px 16px;
}

.nav-btn {
    padding: 0.8rem 1.5rem;
    background: linear-gradient(45deg, var(--christmas-green), var(--dark-green));
    color: var(--snow-white);
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    font-family: 'Comic Neue', cursive;
}

.nav-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px var(--shadow-color);
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    color: var(--dark-green);
    font-weight: bold;
    margin-top: 2rem;
    position: relative;
    z-index: 2;
}

/* Responsive */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.2rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .calendar-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 1rem;
    }
    
    .day-card {
        width: 120px;
        height: 120px;
    }
    
    .day-number {
        font-size: 2rem;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
    }
    
    .modal-footer {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Estils específics per a pistes */
.clue-text {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
    border-left: 5px solid var(--christmas-gold);
}

.clue-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 1rem 0;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.riddle-box {
    background: linear-gradient(45deg, var(--light-blue), var(--warm-cream));
    padding: 1.5rem;
    border-radius: 15px;
    border: 2px dashed var(--christmas-green);
    margin: 1rem 0;
    text-align: center;
    font-style: italic;
    font-size: 1.1rem;
}

.evidence-item {
    background: rgba(255, 255, 255, 0.9);
    padding: 1rem;
    margin: 0.5rem 0;
    border-radius: 8px;
    border-left: 4px solid var(--christmas-red);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.evidence-icon {
    font-size: 1.5rem;
    color: var(--christmas-red);
}