:root {
    /* Color Palette */
    --bg-pink-light: #fff0f5;
    --bg-pink-pattern: #ffb6c1;
    --modal-bg: rgba(255, 192, 203, 0.95);
    --primary: #ff4081;
    --primary-hover: #f50057;
    --text-dark: #4a4a4a;
    --text-light: #ffffff;
    
    /* Whiteboard & Elements */
    --board-bg: #fafafa;
    --board-border: #e0e0e0;
    --postit-locked-bg: #f5f5f5;
    --postit-locked-text: #9e9e9e;
    
    /* Post-it Unlocked Colors (Vibrant Pastels) */
    --postit-1: #ffeb3b; /* Yellow */
    --postit-2: #7bff64; /* Teal */
    --postit-3: #ff80ab; /* Pink */
    --postit-4: #b388ff; /* Purple */
    --postit-5: #8c9eff; /* Blue */
    --postit-6: #ffd180; /* Orange */
    
    /* Typography */
    --font-heading: 'Caveat', cursive;
    --font-body: 'Quicksand', sans-serif;
    
    /* Effects */
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-strong: 0 15px 40px rgba(0, 0, 0, 0.15);
    --glass-blur: blur(12px);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-pink-light);
    /* Subtle dot pattern */
    background-image: radial-gradient(var(--bg-pink-pattern) 1.5px, transparent 1.5px);
    background-size: 30px 30px;
    color: var(--text-dark);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* Utils */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

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

/* --- Modal Styles --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--modal-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.modal-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-strong);
    border-radius: 24px;
    padding: 3rem 2rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    animation: popIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes popIn {
    0% { transform: scale(0.8); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.heart-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
    animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    14% { transform: scale(1.15); }
    28% { transform: scale(1); }
    42% { transform: scale(1.15); }
    70% { transform: scale(1); }
}

.modal-content h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.modal-content p {
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    color: var(--text-dark);
}

button {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-light);
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 64, 129, 0.4);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

button::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(45deg);
    transition: all 0.3s ease;
    opacity: 0;
}

button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 64, 129, 0.6);
}

button:hover::after {
    opacity: 1;
    left: 100%;
}

/* --- Main Hub --- */
main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    width: 100%;
}

.whiteboard {
    background-color: var(--board-bg);
    width: 100%;
    max-width: 1200px;
    min-height: 80vh;
    border-radius: 16px;
    position: relative;
    padding: 4rem 2rem;
    box-shadow: 
        inset 0 0 40px rgba(0,0,0,0.03), 
        var(--shadow-strong);
    border: 12px solid #fff;
    /* Simulated wood frame using border image */
    border-image: linear-gradient(to bottom right, #e0e0e0, #bdbdbd) 1;
}

/* Decorations (Emojis as stickers) */
.decoration {
    position: absolute;
    font-size: 2.5rem;
    user-select: none;
    pointer-events: none;
    filter: drop-shadow(2px 4px 6px rgba(0,0,0,0.15));
    z-index: 5;
}

.sticker-1 { top: -25px; left: -25px; font-size: 4.5rem; transform: rotate(-15deg); }
.sticker-2 { bottom: -20px; right: -20px; font-size: 4rem; transform: rotate(10deg); }
.magnet-1 { top: 30px; right: 40px; transform: rotate(5deg); }
.magnet-2 { bottom: 40px; left: 40px; transform: rotate(-10deg); }

/* Washi Tape effect */
.tape-1 {
    width: 120px;
    height: 35px;
    background-color: rgba(255, 192, 203, 0.6);
    top: -15px;
    left: 50%;
    transform: translateX(-50%) rotate(-2deg);
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    backdrop-filter: blur(2px);
}

.tape-2 {
    width: 100px;
    height: 30px;
    background-color: rgba(135, 206, 235, 0.5);
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%) rotate(3deg);
    border-radius: 2px;
}

/* Header & Countdown */
.hub-header {
    text-align: center;
    margin-bottom: 4rem;
}

.hub-header h2 {
    font-family: var(--font-heading);
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
    text-shadow: 2px 2px 0px rgba(255, 64, 129, 0.1);
}

.countdown-display {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    padding: 1.5rem 3rem;
    border-radius: 50px;
    box-shadow: var(--shadow-soft);
    border: 3px dashed var(--primary);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-dark);
    flex-wrap: wrap;
    justify-content: center;
}

.time-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 0.5rem;
}

.time-block span {
    font-family: monospace;
    font-size: 2.5rem;
    color: var(--primary);
    line-height: 1;
}

.time-block small {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #888;
    margin-top: 0.2rem;
}

.target-text {
    width: 100%;
    text-align: center;
    margin-top: 0.5rem;
    font-size: 1.2rem;
    color: #666;
}

/* Gifts Grid */
.gifts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 4rem;
    justify-items: center;
    padding: 2rem 1rem;
}

/* Post-it Base */
.post-it {
    width: 240px;
    height: 240px;
    position: relative;
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    border-radius: 2px 2px 20px 2px; /* Slight curl on bottom right */
    box-shadow: 3px 6px 15px rgba(0,0,0,0.1);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
    transform: rotate(var(--rotation, 0deg));
}

.post-it:hover {
    z-index: 10;
    transform: rotate(0deg) scale(1.1) !important;
    box-shadow: var(--shadow-strong);
}

.pin {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.8rem;
    filter: drop-shadow(1px 2px 2px rgba(0,0,0,0.3));
    z-index: 2;
}

.post-it h3 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

/* Locked State */
.post-it.locked {
    background-color: var(--postit-locked-bg);
    color: var(--postit-locked-text);
    /* Soft pattern for locked state */
    background-image: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(0,0,0,0.02) 10px, rgba(0,0,0,0.02) 20px);
}

.post-it.locked h3 {
    color: #757575;
}

.status-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.lock-icon {
    font-size: 2.5rem;
    opacity: 0.5;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
    100% { transform: translateY(0px); }
}

.mini-countdown {
    font-family: monospace;
    font-size: 1.2rem;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.8);
    color: #555;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

/* Unlocked State */
.post-it.unlocked {
    cursor: pointer;
}

/* Assign dynamic colors via nth-child */
.post-it.unlocked:nth-child(1) { background-color: var(--postit-1); }
.post-it.unlocked:nth-child(2) { background-color: var(--postit-2); }
.post-it.unlocked:nth-child(3) { background-color: var(--postit-3); }
.post-it.unlocked:nth-child(4) { background-color: var(--postit-4); }
.post-it.unlocked:nth-child(5) { background-color: var(--postit-5); }
.post-it.unlocked:nth-child(6) { background-color: var(--postit-6); }

.unlocked-content {
    animation: fadeIn 0.6s ease forwards;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.unlocked-content h4 {
    font-size: 1.2rem;
    color: #333;
    font-weight: 700;
}

.gift-btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: rgba(255,255,255,0.4);
    color: #222;
    text-decoration: none;
    border-radius: 20px;
    font-weight: 700;
    border: 2px solid rgba(0,0,0,0.1);
    transition: all 0.2s ease;
}

.gift-btn:hover {
    background: rgba(255,255,255,0.8);
    transform: scale(1.05);
}

/* Responsive */
@media (max-width: 800px) {
    .hub-header h2 { font-size: 3rem; }
    .countdown-display { padding: 1rem 1.5rem; }
    .time-block span { font-size: 2rem; }
    .whiteboard { border-width: 8px; padding: 3rem 1rem; }
}

@media (max-width: 480px) {
    .modal-content { padding: 2rem 1.5rem; }
    .modal-content h1 { font-size: 2.2rem; }
    .hub-header { margin-bottom: 2.5rem; }
    .hub-header h2 { font-size: 2.2rem; margin-bottom: 1rem; }
    
    .countdown-display { 
        padding: 1rem 0.5rem; 
        border-width: 2px;
        gap: 0.2rem;
    }
    .time-block { margin: 0 0.3rem; }
    .time-block span { font-size: 1.4rem; }
    .time-block small { font-size: 0.7rem; }
    .target-text { font-size: 1rem; }

    .whiteboard {
        padding: 2.5rem 0.5rem;
        border-width: 6px;
    }

    .gifts-grid { 
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        padding: 1rem 0;
    }

    .post-it {
        width: 280px;
        height: 220px;
        transform: rotate(0deg) !important; /* Elimina rotación para vista de lista limpia */
        margin: 0 auto;
        padding: 2rem 1.5rem;
    }

    .post-it:hover {
        transform: scale(1.05) !important;
    }

    .post-it h3 {
        font-size: 2.2rem;
    }

    /* Ajuste de decoraciones para evitar desbordamiento */
    .sticker-1 { top: -15px; left: -10px; font-size: 3rem; }
    .sticker-2 { bottom: -10px; right: -10px; font-size: 2.5rem; }
    .magnet-1 { right: 10px; top: 15px; }
    .magnet-2 { left: 10px; bottom: 20px; }
}