:root {
    --primary-color: #e63946;
    --secondary-color: #1d3557;
    --accent-color: #f1faee;
    --success-color: #2a9d8f;
    --locked-color: #457b9d;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--locked-color) 100%);
    color: #fff;
    text-align: center;
    padding: 20px;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
}

.loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--locked-color) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
}

.loader-icon {
    width: 80px;
    height: 80px;
    position: relative;
    margin-bottom: 20px;
}

.loader-icon:before {
    content: "🎄";
    font-size: 50px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: treeScale 1s ease-in-out infinite alternate;
}

.loading-text {
    font-size: 1.5em;
    color: var(--accent-color);
    margin-top: 20px;
    opacity: 0.8;
    animation: textPulse 1.5s ease-in-out infinite;
}

.loading-dots:after {
    content: '';
    animation: dots 1.5s steps(5, end) infinite;
}

.snowflakes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.snowflake {
    position: fixed;
    top: -20px;
    color: white;
    font-size: 20px;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
    animation: snowfall linear infinite;
    z-index: 1;
    opacity: 0.8;
    user-select: none;
}

h1 {
    color: var(--accent-color);
    font-size: 3.5em;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: titleGlow 2s ease-in-out infinite alternate;
}

.calendar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s ease-out forwards;
    animation-delay: 2s;
}

.day {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border: 2px solid var(--accent-color);
    border-radius: 15px;
    padding: 25px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.8em;
    font-weight: bold;
    color: var(--accent-color);
    position: relative;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.day:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 25px rgba(0,0,0,0.2);
    background: rgba(255, 255, 255, 0.15);
}

.day.opened {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.day.locked {
    background: var(--locked-color);
    opacity: 0.7;
    cursor: not-allowed;
}

.day.event {
    border: 2px solid #ffd700;
    animation: eventPulse 2s infinite;
}

.modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(29, 53, 87, 0.95);
    border-radius: 20px;
    box-shadow: 0 0 30px rgba(0,0,0,0.3);
    padding: 30px;
    z-index: 1000;
    max-width: 90%;
    width: 400px;
    backdrop-filter: blur(10px);
}

.modal.active {
    display: block;
    animation: modalAppear 0.3s ease-out;
}

.modal p {
    font-size: 1.2em;
    line-height: 1.6;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.modal button {
    padding: 12px 25px;
    border: none;
    background: var(--primary-color);
    color: white;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1em;
    transition: all 0.3s ease;
}

.modal button:hover {
    background: #c1121f;
    transform: scale(1.05);
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(3px);
    z-index: 999;
}

.overlay.active {
    display: block;
}

.stats-counter, .audio-controls, .compact-timer {
    position: fixed;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: 15px;
    padding: 10px 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.stats-counter {
    top: 20px;
    right: 20px;
}

.audio-controls {
    bottom: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.compact-timer {
    top: 20px;
    left: 20px;
    font-size: 1.5em;
    font-weight: bold;
    color: var(--accent-color);
    z-index: 1000;
    animation: glowPulse 2s infinite;
}

#audioControl {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: white;
}

#timer-text {
    background: linear-gradient(90deg, #fff, var(--primary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 10px rgba(255, 255, 255, 0.2);
}

/* Animations */
@keyframes treeScale {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.5; }
    100% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

@keyframes textPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60% { content: '...'; }
    80% { content: '....'; }
    100% { content: '.....'; }
}

@keyframes snowfall {
    0% { transform: translateY(-20px) rotate(0deg); }
    100% { transform: translateY(100vh) rotate(360deg); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes eventPulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(255, 215, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 215, 0, 0); }
}

@keyframes titleGlow {
    from { text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #e60073; }
    to { text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #e60073; }
}

@keyframes modalAppear {
    from { opacity: 0; transform: translate(-50%, -60%); }
    to { opacity: 1; transform: translate(-50%, -50%); }
}

@keyframes glowPulse {
    0% { box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); }
    50% { box-shadow: 0 4px 25px rgba(230, 57, 70, 0.3); }
    100% { box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); }
}