@import url('https://fonts.googleapis.com/css2?family=Amatic+SC:wght@400;700&family=Caveat:wght@400;700&family=Dancing+Script:wght@700&family=Gloria+Hallelujah&family=Indie+Flower&family=Pacifico&family=Patrick+Hand&family=Permanent+Marker&family=Sacramento&family=Shadows+Into+Light&display=swap');

/* FIX: Set global background to black to hide white bars on Safari scroll/edges */
html {
    background-color: #000;
    height: 100%;
    scrollbar-width: none; 
    -ms-overflow-style: none;
}

/* FIX: Global hide for Chrome, Safari, and Opera */
::-webkit-scrollbar {
    display: none;
}

body {
    margin: 0; padding: 0; background: transparent;
    font-family: 'Caveat', cursive; color: #333; overflow-x: hidden;
    min-height: 100%;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

/* --- BACKGROUND MEDIA STYLES --- */
#bg-video, #bg-image {
    position: fixed; 
    top: 0; left: 0;
    width: 100vw; 
    height: 100vh; 
    height: 100dvh; 
    object-fit: cover;
    z-index: -100; 
    background: #000;
    transition: opacity 0.5s ease; /* Smooth transition between backgrounds */
}

#bg-image {
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
}

/* Utility to hide the media type not currently in use */
.hidden-media {
    opacity: 0;
    pointer-events: none;
}


/* 3D SCENE SETUP */
.container, .admin-workspace, .modal {
    display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
    perspective: 2000px; /* High perspective for the depth trick */
}
.container { gap: 40px; padding: 80px 40px; z-index: 10; position: relative; }

/* --- 1. WRAPPER: HANDLES VERTICAL MOVEMENT (CONTINUOUS) --- */
.note-wrapper {
    position: relative;
    z-index: 1;
    cursor: pointer;
    animation: verticalFloat 4s ease-in-out infinite alternate;
    
    /* FIX: Enable 3D space preservation so the children can use the Z-depth trick */
    transform-style: preserve-3d; 
    will-change: transform;
}

.note-wrapper:hover {
    z-index: 100; 
    animation-play-state: paused; 
}

/* --- 2. NOTE PREVIEW: HANDLES ROTATION (INTERMITTENT) --- */
.note-preview, .cover-preview-large {
    width: 200px; height: 260px; 
    background-color: var(--cover-bg); 
    
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    
    box-shadow: 5px 5px 15px rgba(0,0,0,0.5); 
    padding: 20px;
    box-sizing: border-box; 
    
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.5s ease;
    
    position: relative;
    overflow: hidden; 
    color: var(--cover-text); 
    border-left: 8px solid rgba(0,0,0,0.1); 
    
    /* --- PIXELATION FIX: HIGH QUALITY RENDERING --- */
    image-rendering: high-quality;
    -webkit-font-smoothing: antialiased;
    backface-visibility: hidden; 
    outline: 1px solid transparent; 

    /* Force the element to be positioned in 3D space immediately */
    transform: translateZ(1000px) scale(0.5) rotate(var(--rotation));
}

.note-preview {
    animation: intermittentRotate 10s ease-in-out infinite alternate;
    /* IMPORTANT: The base transform is now handled inside the keyframes to include the scale fix */
}

/* --- HOVER EFFECT --- */
.note-wrapper:hover .note-preview {
    animation: none; 
    /* Maintain the Z-depth trick (Z=1000) but increase scale slightly (0.5 * 1.1 = 0.55) */
    transform: translateZ(1000px) scale(0.55) rotate(0deg) !important; 
    box-shadow: 15px 15px 30px rgba(0,0,0,0.6);
    z-index: 100;
}

.note-title, #preview-title-text {
    font-size: 1.8rem; font-weight: 700; 
    line-height: 1.2em; overflow-wrap: break-word;
    position: relative; z-index: 5;
    margin: 0; 
    width: 100%;
    font-family: 'Caveat', cursive; 
    color: var(--label-text, inherit);
    /* Ensure text renders sharply */
    transform: translateZ(0);
}

/* --- FONT CLASSES --- */
.font-caveat { font-family: 'Caveat', cursive !important; }
.font-dancing { font-family: 'Dancing Script', cursive !important; }
.font-indie { font-family: 'Indie Flower', cursive !important; }
.font-patrick { font-family: 'Patrick Hand', cursive !important; }
.font-marker { font-family: 'Permanent Marker', cursive !important; letter-spacing: 1px; }

/* New Fonts Added */
.font-pacifico { font-family: 'Pacifico', cursive !important; }
.font-shadows { font-family: 'Shadows Into Light', cursive !important; }
.font-amatic { font-family: 'Amatic SC', cursive !important; font-weight: 700; }
.font-gloria { font-family: 'Gloria Hallelujah', cursive !important; }
.font-sacramento { font-family: 'Sacramento', cursive !important; }


/* --- COVER IMAGE LAYER --- */
.cover-img-layer {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-repeat: no-repeat;
    z-index: 0; 
    pointer-events: none; 
    image-rendering: high-quality; /* Ensure background images are sharp */
}

/* --- FANCY LABELS --- */
[class^="label-"] {
    position: relative; z-index: 10;
    display: flex; justify-content: center; align-items: center;
    width: 100%;
    transition: all 0.3s ease;
}

/* 1. None */
.label-none .note-title, .label-none #preview-title-text {
    text-shadow: 0 0 10px rgba(255,255,255,0.8);
    color: var(--cover-text);
}

/* 2. Box */
.label-box .note-title, .label-box #preview-title-text {
    background: var(--label-bg, #fff); 
    border: 4px double var(--label-border, #333);
    color: var(--label-text, #333);
    border-radius: 8px; 
    padding: 10px 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    min-width: 100px;
    display: inline-block;
}

/* 3. Circle */
.label-circle .note-title, .label-circle #preview-title-text {
    background: var(--label-bg, #fff); 
    border: 3px solid var(--label-border, #333);
    color: var(--label-text, #333);
    border-radius: 50%; 
    width: 130px; height: 130px;
    display: flex; justify-content: center; align-items: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    padding: 10px;
}

/* 4. Ribbon */
.note-preview .label-ribbon .note-title, 
.note-preview .label-ribbon #preview-title-text,
.cover-preview-large .label-ribbon .note-title,
.cover-preview-large .label-ribbon #preview-title-text {
    position: relative;
    background: var(--label-bg, #fff);
    color: var(--label-text, #333);
    border-top: 2px solid var(--label-border, #333);
    border-bottom: 2px solid var(--label-border, #333);
    padding: 10px 20px;
    font-size: 1.6rem;
    box-shadow: 0 5px 10px rgba(0,0,0,0.2);
    width: 120%; 
    margin-left: -10%;
    text-align: center;
}

.note-preview .label-ribbon .note-title::before, .note-preview .label-ribbon .note-title::after,
.cover-preview-large .label-ribbon .note-title::before, .cover-preview-large .label-ribbon .note-title::after,
.note-preview .label-ribbon #preview-title-text::before, .note-preview .label-ribbon #preview-title-text::after,
.cover-preview-large .label-ribbon #preview-title-text::before, .cover-preview-large .label-ribbon #preview-title-text::after {
    content: '';
    position: absolute;
    bottom: -10px;
    border-style: solid;
    border-width: 10px 10px 0 0;
    border-color: rgba(0,0,0,0.5) transparent transparent transparent;
    z-index: -1;
}

.note-preview .label-ribbon .note-title::before, .cover-preview-large .label-ribbon .note-title::before,
.note-preview .label-ribbon #preview-title-text::before, .cover-preview-large .label-ribbon #preview-title-text::before {
    left: 0;
}
.note-preview .label-ribbon .note-title::after, .cover-preview-large .label-ribbon .note-title::after,
.note-preview .label-ribbon #preview-title-text::after, .cover-preview-large .label-ribbon #preview-title-text::after {
    right: 0; transform: scaleX(-1);
}

.note-preview .label-ribbon::before, .note-preview .label-ribbon::after,
.cover-preview-large .label-ribbon::before, .cover-preview-large .label-ribbon::after {
    content: '';
    position: absolute;
    top: 15px;
    width: 30px; height: 30px;
    background: var(--label-bg, #fff);
    border: 2px solid var(--label-border, #333);
    z-index: -2;
    transform: rotate(45deg);
}
.note-preview .label-ribbon::before, .cover-preview-large .label-ribbon::before { left: -10px; }
.note-preview .label-ribbon::after, .cover-preview-large .label-ribbon::after { right: -10px; }

/* 5. Cloud */
.label-cloud .note-title, .label-cloud #preview-title-text {
    background: var(--label-bg, #fff);
    color: var(--label-text, #333);
    padding: 25px 20px;
    border-radius: 50px;
    position: relative;
    z-index: 5;
    box-shadow: 5px 5px 15px rgba(0,0,0,0.1);
    border: 2px solid var(--label-border, transparent); 
    min-width: 100px;
}
.label-cloud .note-title::before, .label-cloud .note-title::after,
.label-cloud #preview-title-text::before, .label-cloud #preview-title-text::after {
    content: '';
    background: var(--label-bg, #fff);
    position: absolute;
    border-radius: 50%;
    z-index: -1;
    border-top: 2px solid var(--label-border, transparent); 
}
.label-cloud .note-title::before, .label-cloud #preview-title-text::before {
    width: 50px; height: 50px; top: -20px; left: 15px;
}
.label-cloud .note-title::after, .label-cloud #preview-title-text::after {
    width: 60px; height: 60px; top: -25px; right: 15px;
}

/* 6. Heart */
.label-heart {
    width: 140px; height: 120px;
    margin: 0 auto;
}
.label-heart .note-title, .label-heart #preview-title-text {
    position: relative;
    z-index: 5;
    font-size: 1.5rem;
    color: var(--label-text, #333);
}
.label-heart::before {
    content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--label-bg, #fff);
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z'/%3E%3C/svg%3E");
    mask-size: contain; mask-repeat: no-repeat; mask-position: center;
    -webkit-mask-size: contain; -webkit-mask-repeat: no-repeat; -webkit-mask-position: center;
    z-index: 1; opacity: 1;
    filter: drop-shadow(0 0 5px rgba(0,0,0,0.3));
    border: 2px solid var(--label-border, transparent); 
}

/* 7. Double Box */
.label-double .note-title, .label-double #preview-title-text {
    background: var(--label-bg, #fff);
    color: var(--label-text, #333);
    border-radius: 12px;
    padding: 15px 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    border: 3px solid var(--label-bg, #fff); 
    position: relative;
    display: inline-block;
    min-width: 120px;
}
.label-double .note-title::after, .label-double #preview-title-text::after {
    content: ''; position: absolute;
    top: 4px; left: 4px; right: 4px; bottom: 4px;
    border: 2px solid var(--label-border, #333);
    border-radius: 8px; pointer-events: none;
}

/* 8. Tag */
.label-tag .note-title, .label-tag #preview-title-text {
    background: var(--label-bg, #fff);
    color: var(--label-text, #333);
    border: 2px solid var(--label-border, #333);
    border-radius: 10px;
    padding: 15px 25px 15px 45px; /* Extra padding left for hole */
    box-shadow: 2px 5px 10px rgba(0,0,0,0.2);
    position: relative;
    transform: rotate(-5deg);
    display: inline-block;
}
/* Hole */
.label-tag .note-title::before, .label-tag #preview-title-text::before {
    content: ''; position: absolute;
    left: 12px; top: 50%; transform: translateY(-50%);
    width: 12px; height: 12px;
    border-radius: 50%;
    border: 2px solid var(--label-border, #333);
    background: transparent;
    box-shadow: inset 0 0 0 20px #333;
}
/* String */
.label-tag .note-title::after, .label-tag #preview-title-text::after {
    content: ''; position: absolute;
    left: -20px; top: 40%;
    width: 30px; height: 30px;
    border-top: 2px solid var(--label-border, #333);
    border-radius: 50%;
    transform: rotate(-20deg);
    pointer-events: none;
}

/* 9. Scroll */
.label-scroll .note-title, .label-scroll #preview-title-text {
    background: var(--label-bg, #fff);
    color: var(--label-text, #333);
    padding: 15px 40px;
    border-top: 2px solid var(--label-border, #333);
    border-bottom: 2px solid var(--label-border, #333);
    position: relative;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    display: inline-block;
    min-width: 140px;
}
/* Scroll Ends */
.label-scroll .note-title::before, .label-scroll .note-title::after,
.label-scroll #preview-title-text::before, .label-scroll #preview-title-text::after {
    content: ''; position: absolute;
    top: -10px; bottom: -10px; width: 25px;
    background: radial-gradient(circle at center, #fff 40%, var(--label-bg, #fff) 100%);
    border: 2px solid var(--label-border, #333);
    border-radius: 5px;
    z-index: 2;
}
.label-scroll .note-title::before, .label-scroll #preview-title-text::before {
    left: -12px;
    border-radius: 50% 50% 5px 5px;
    background: linear-gradient(90deg, var(--label-bg, #fff), rgba(0,0,0,0.1));
}
.label-scroll .note-title::after, .label-scroll #preview-title-text::after {
    right: -12px;
    border-radius: 5px 5px 50% 50%;
    background: linear-gradient(-90deg, var(--label-bg, #fff), rgba(0,0,0,0.1));
}

/* 10. Banner */
.label-banner .note-title, .label-banner #preview-title-text {
    background: var(--label-bg, #fff);
    color: var(--label-text, #333);
    border: 2px solid var(--label-border, #333);
    padding: 10px 30px;
    position: relative;
    display: inline-block;
    z-index: 5;
    border-radius: 4px;
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    transform: perspective(500px) translateZ(10px);
}
/* Banner Tails */
.label-banner .note-title::before, .label-banner .note-title::after,
.label-banner #preview-title-text::before, .label-banner #preview-title-text::after {
    content: ''; position: absolute;
    top: 10px; width: 0; height: 0;
    border-style: solid;
    z-index: -1;
}
.label-banner .note-title::before, .label-banner #preview-title-text::before {
    left: -20px;
    border-width: 0 30px 40px 10px;
    border-color: transparent var(--label-bg, #fff) transparent transparent;
    filter: drop-shadow(-1px 0 0 var(--label-border, #333));
    transform: rotate(10deg);
}
.label-banner .note-title::after, .label-banner #preview-title-text::after {
    right: -20px;
    border-width: 0 10px 40px 30px;
    border-color: transparent transparent transparent var(--label-bg, #fff);
    filter: drop-shadow(1px 0 0 var(--label-border, #333));
    transform: rotate(-10deg);
}

/* 11. Flag */
.label-flag .note-title, .label-flag #preview-title-text {
    background: var(--label-bg, #fff);
    color: var(--label-text, #333);
    padding: 15px 40px;
    position: relative;
    display: inline-block;
    clip-path: polygon(0% 0%, 100% 0%, 90% 50%, 100% 100%, 0% 100%, 10% 50%);
}
/* Dashed Border Simulation */
.label-flag .note-title::after, .label-flag #preview-title-text::after {
    content: ''; position: absolute;
    top: 5px; left: 15px; right: 15px; bottom: 5px;
    border: 2px dashed var(--label-border, #333);
    opacity: 0.7;
    pointer-events: none;
    clip-path: polygon(0% 0%, 100% 0%, 92% 50%, 100% 100%, 0% 100%, 8% 50%);
}

/* --- MODAL --- */
.modal {
    display: none; position: fixed; top: 0; left: 0;
    width: 100%; height: 100%; background: rgba(0,0,0,0.9);
    z-index: 100; padding: 0; 
    justify-content: center; align-items: center;
    opacity: 0; transition: opacity 0.3s ease;
    overflow: hidden;
}
.modal.active { opacity: 1; }

/* --- BOOK CONTAINER --- */
#book-container {
    width: 600px; 
    height: 640px;
    position: relative; 
    transform-style: preserve-3d;
    margin: auto;
}

/* --- NOTEBOOK PAGE --- */
.notebook-page {
    width: 600px; 
    height: 640px; 
    min-height: 640px;
    max-width: 95vw; 
    background-color: #fdf6e3; 
    background-image: linear-gradient(transparent 31px, #999 31px);
    background-size: 100% 2rem; 
    position: relative; 
    box-shadow: 10px 10px 40px rgba(0,0,0,0.5);
    padding: 2rem 30px 0 70px; 
    box-sizing: border-box; overflow: hidden; margin: auto;
    color: #333;
    display: flex; flex-direction: column; flex-shrink: 0; 
    transform-style: preserve-3d;
    transform-origin: left center;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transition: transform 0.8s cubic-bezier(0.645, 0.045, 0.355, 1);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    will-change: transform; 
}

#book-container .notebook-page {
    position: absolute; 
    top: 0; left: 0; 
    margin: 0;
    box-shadow: 5px 5px 20px rgba(0,0,0,0.3);
}

.notebook-page::before {
    content: "";
    position: absolute;
    top: 0; left: 15px; 
    width: 40px; height: 100%;
    z-index: 20;
    background: radial-gradient(circle at 30% 50%, #333 25%, transparent 26%) 0 0;
    background-size: 100% 2rem; 
    background-repeat: repeat-y;
    border-right: 2px solid rgba(0,0,0,0.1); 
}

.notebook-page h2 {
    font-size: 3rem; line-height: 4rem; margin: 0; 
    text-align: center; 
    border-bottom: 2px solid currentColor;
    font-family: 'Caveat', cursive; width: 100%;
    margin-bottom: calc(2rem - 2px);
    flex-shrink: 0; 
}

.editable-content {
    flex-grow: 1; height: auto; width: 100%; 
    outline: none; font-size: 1.5rem; line-height: 2rem; 
    white-space: pre-wrap; z-index: 5; position: relative; cursor: text;
    display: block; min-height: 0; 
}

.notebook-page.flipped {
    transform: rotateY(-150deg);
    box-shadow: -5px 5px 20px rgba(0,0,0,0.1);
}
.z-top { z-index: 10; }
.z-mid { z-index: 5; }

.drag-item {
    position: absolute; min-width: 50px; min-height: 50px;
    max-width: 100% !important; cursor: grab; z-index: 10; resize: both; overflow: hidden;
    transform: translateZ(1px); 
    -webkit-transform: translateZ(1px);
}
.admin-mode .drag-item { border: 2px dashed #444; background: rgba(255,255,255,0.1); }
.drag-item img { width: 100%; height: 100%; object-fit: contain !important; pointer-events: none; }

.rotate-handle, .delete-handle {
    width: 20px; height: 20px; border-radius: 50%;
    position: absolute; display: none;
    box-shadow: 0 0 5px rgba(0,0,0,0.5); z-index: 20; border: 2px solid white;
    cursor: pointer;
    transform: translateZ(2px);
    -webkit-transform: translateZ(2px);
}
.rotate-handle {
    background: #28a745; top: 5px; left: 5px; cursor: alias;
}
.delete-handle {
    background: #dc3545; top: 5px; right: 5px; 
    color: white; font-family: sans-serif; font-weight: bold; font-size: 14px;
    justify-content: center; align-items: center; line-height: 18px;
    text-align: center;
}

.admin-mode .drag-item:hover .rotate-handle, 
.admin-mode .drag-item:hover .delete-handle,
.admin-mode .rotate-handle:active {
    display: block;
    display: flex; 
}

.page-number {
    position: absolute; bottom: 5px; width: 100%; text-align: center;
    font-size: 1rem; color: #777; pointer-events: none; left: 0;
}

.close-btn {
    position: absolute; top: 15px; right: 20px;
    font-size: 3rem; cursor: pointer; color: #fff; background: none; border: none;
    z-index: 1000; line-height: 1;
    transition: transform 0.2s;
}
.close-btn:hover { transform: scale(1.1); }

.nav-arrow {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 50px; height: 50px; background: #333; color: #fff;
    border-radius: 50%; display: flex; justify-content: center; align-items: center;
    font-size: 2rem; cursor: pointer; user-select: none; z-index: 105; opacity: 0.8;
}
.prev-arrow { left: 20px; } .next-arrow { right: 20px; }
.hidden { display: none !important; }

/* Admin UI */
.admin-wrapper { display: flex; flex-direction: column; align-items: center; width: 100%; }
.admin-toolbar {
    position: fixed; top: 0; left: 0; width: 100%; background: #333;
    padding: 10px; display: flex; gap: 10px; justify-content: center;
    align-items: center; z-index: 1000; color: white; flex-wrap: wrap;
}
.admin-workspace { margin-top: 10px; display: flex; justify-content: center; padding-bottom: 50px; width: 100%; }
.toolbar-btn { padding: 6px 12px; border-radius: 4px; border: none; cursor: pointer; font-weight: bold; background: #fff; color: #333; white-space: nowrap; display: flex; align-items: center; gap: 5px;}
.save-btn { background: #28a745; color: white; }
.delete-page-btn { background: #dc3545; color: white; }
.warn { color: #dc3545 !important; }

.admin-list-container {
    width: 90%; max-width: 800px; margin-top: 20px; background: #fff; padding: 20px;
    border-radius: 8px; font-family: sans-serif; margin-bottom: 50px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1); /* ADDED SHADOW FOR CONSISTENCY */
}
.note-item {
    display: flex; justify-content: space-between; align-items: center;
    background: #f9f9f9; padding: 10px; margin-bottom: 10px; border-bottom: 1px solid #eee;
}
.edit-btn { background: #007bff; color: white; border: none; padding: 5px 10px; cursor: pointer; margin-right: 5px; border-radius: 3px;}
.del-btn { background: #dc3545; color: white; border: none; padding: 5px 10px; cursor: pointer; border-radius: 3px;}

.admin-tabs {
    margin-top: 75px; 
    width: 100%; display: flex; justify-content: center; gap: 5px;
    z-index: 900;
}
.tab-btn {
    padding: 10px 25px; 
    background: rgba(0,0,0,0.5); 
    color: #ccc;
    border: none; 
    border-radius: 8px 8px 0 0; 
    cursor: pointer;
    font-weight: bold; font-family: sans-serif; font-size: 1rem;
    transition: background 0.2s, color 0.2s;
}
.tab-btn:hover {
    background: rgba(0,0,0,0.8);
    color: #fff;
}
.tab-btn.active {
    background: #fdf6e3; 
    color: #333;
}
.tab-view {
    display: none;
    width: 100%;
    justify-content: center;
}
.tab-view.active {
    display: flex;
}

@media (max-width: 768px) {
    #book-container { width: 95vw; height: 640px; }
    .notebook-page { 
        width: 100%; height: 640px; 
        padding: 2rem 25px 0 70px; 
    }
    .notebook-page h2 { font-size: 2rem; line-height: 2rem; margin-bottom: calc(2rem - 2px); }
    .drag-item { max-width: 90% !important; }
    .nav-arrow { top: auto; bottom: 20px; transform: none; width: 40px; height: 40px; font-size: 1.5rem; }
    .prev-arrow { left: 10px; } .next-arrow { right: 10px; }
    .close-btn { top: 10px; right: 10px; background: rgba(0,0,0,0.5); border-radius: 50%; width: 40px; height: 40px; font-size: 2rem; display: flex; justify-content: center; align-items: center; padding-bottom: 5px; }
    .designer-container { flex-direction: column; }
}

:root {
    --cover-bg: #fdf6e3;
    --cover-accent: #e0e0e0;
    --cover-text: #333;
}

/* --- PATTERN DEFINITIONS --- */
.pattern-base {
    background-color: var(--cover-bg) !important;
    color: var(--cover-text) !important;
    position: relative;
    z-index: 1;
}

.pat-solid { background-image: none; }

.pat-dots {
    background-image: radial-gradient(var(--cover-accent) 20%, transparent 20%);
    background-position: 0 0, 10px 10px;
    background-size: 20px 20px;
}

.pat-grid {
    background-image: 
        linear-gradient(var(--cover-accent) 1px, transparent 1px),
        linear-gradient(90deg, var(--cover-accent) 1px, transparent 1px);
    background-size: 20px 20px;
}

.pat-composition {
    background-image: 
        radial-gradient(var(--cover-accent) 15%, transparent 16%),
        radial-gradient(var(--cover-accent) 15%, transparent 16%);
    background-size: 10px 10px;
    background-position: 0 0, 5px 5px;
}

.pat-stripes {
    background-image: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        var(--cover-accent) 10px,
        var(--cover-accent) 20px
    );
}

.pat-flowers {
    background-image: 
        radial-gradient(circle at 50% 50%, var(--cover-bg) 20%, transparent 21%),
        radial-gradient(circle at 0% 0%, var(--cover-accent) 20%, transparent 20%),
        radial-gradient(circle at 100% 0%, var(--cover-accent) 20%, transparent 20%),
        radial-gradient(circle at 100% 100%, var(--cover-accent) 20%, transparent 20%),
        radial-gradient(circle at 0% 100%, var(--cover-accent) 20%, transparent 20%);
    background-size: 40px 40px;
    background-position: 0 0, 20px 20px;
}

.pat-checkers {
    background-image: linear-gradient(45deg, var(--cover-accent) 25%, transparent 25%, transparent 75%, var(--cover-accent) 75%, var(--cover-accent)),
    linear-gradient(45deg, var(--cover-accent) 25%, transparent 25%, transparent 75%, var(--cover-accent) 75%, var(--cover-accent));
    background-position: 0 0, 10px 10px;
    background-size: 20px 20px;
}

.pat-zigzag {
    background:
        linear-gradient(135deg, var(--cover-accent) 25%, transparent 25%) -10px 0,
        linear-gradient(225deg, var(--cover-accent) 25%, transparent 25%) -10px 0,
        linear-gradient(315deg, var(--cover-accent) 25%, transparent 25%),
        linear-gradient(45deg, var(--cover-accent) 25%, transparent 25%);
    background-size: 20px 20px;
    background-color: var(--cover-bg) !important;
}

.pat-plaid {
    background-image:
        repeating-linear-gradient(90deg, transparent, transparent 10px, var(--cover-accent) 10px, var(--cover-accent) 12px),
        repeating-linear-gradient(0deg, transparent, transparent 10px, var(--cover-accent) 10px, var(--cover-accent) 12px);
}

.pat-waves {
    background-image: radial-gradient(circle at 50% 100%, var(--cover-accent) 25%, transparent 26%),
                      radial-gradient(circle at 50% 0%, var(--cover-accent) 25%, transparent 26%);
    background-position: 0 0, 10px 10px;
    background-size: 20px 20px;
}

.pat-gradient {
    background: linear-gradient(135deg, var(--cover-bg), var(--cover-accent)) !important;
}

.pat-hearts {
    background-image: none; 
    position: relative;
    overflow: hidden;
}
.pat-hearts::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--cover-accent);
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z'/%3E%3C/svg%3E");
    -webkit-mask-size: 30px 30px;
    mask-size: 30px 30px;
    -webkit-mask-repeat: space;
    mask-repeat: space;
    opacity: 0.6; 
    z-index: 0;
    pointer-events: none;
}

/* --- NEW PATTERNS --- */
.pat-stars {
    background-image: radial-gradient(white 15%, transparent 16%),
    radial-gradient(white 15%, transparent 16%);
    background-color: var(--cover-bg) !important;
    background-size: 30px 30px;
    background-position: 0 0, 15px 15px;
}
.pat-stars::before {
    content:""; position: absolute; top:0; left:0; width:100%; height:100%;
    background-image: radial-gradient(var(--cover-accent) 15%, transparent 16%),
    radial-gradient(var(--cover-accent) 15%, transparent 16%);
    background-size: 30px 30px;
    background-position: 0 0, 15px 15px;
    opacity: 0.5; pointer-events:none;
}

.pat-diamonds {
    background: linear-gradient(135deg, var(--cover-accent) 25%, transparent 25%) -10px 0,
        linear-gradient(225deg, var(--cover-accent) 25%, transparent 25%) -10px 0,
        linear-gradient(315deg, var(--cover-accent) 25%, transparent 25%),
        linear-gradient(45deg, var(--cover-accent) 25%, transparent 25%);
    background-size: 20px 20px;
    background-color: var(--cover-bg) !important;
}

.pat-confetti {
    background-image: radial-gradient(var(--cover-accent) 20%, transparent 20%),
    radial-gradient(var(--cover-accent) 20%, transparent 20%);
    background-size: 10px 10px;
    background-position: 0 0, 5px 5px;
}

/* --- ADMIN DESIGNER LAYOUT --- */
.designer-container {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    max-width: 1100px;
    width: 100%;
    box-shadow: 0 5px 20px rgba(0,0,0,0.5);
    margin: 20px auto;
}

.designer-controls {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.control-group label { font-weight: bold; font-family: sans-serif; font-size: 0.9rem; }

/* Grid for Patterns and Labels */
.pattern-grid, .label-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.pattern-btn, .label-btn {
    height: 60px;
    border: 2px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
    background-color: #f9f9f9;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.8rem;
    font-family: sans-serif;
    text-align: center;
}
.pattern-btn:hover, .label-btn:hover { transform: scale(1.05); }
.pattern-btn.selected, .label-btn.selected { border: 3px solid #007bff; box-shadow: 0 0 10px rgba(0,123,255,0.3); background-color: #e6f2ff; }

/* Large Preview Area */
.preview-box-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #333;
    border-radius: 8px;
    padding: 20px;
    min-width: 300px;
}

.cover-preview-large {
    width: 280px;
    height: 360px;
    box-shadow: 5px 5px 15px rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 2rem;
    font-weight: bold;
    padding: 20px;
    transition: all 0.3s ease;
    border-left: 12px solid rgba(0,0,0,0.1); 
    position: relative;
    /* Important for displaying labels on top */
    z-index: 1;
}

/* --- [UPDATED] SAVED COVERS STYLES --- */
/* Now re-using .admin-list-container for layout, adding specific children styles */

.saved-covers-section h3 {
    margin-top: 0;
    color: #333;
    border-bottom: 2px solid #ddd;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.save-cover-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
}

.save-cover-form input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 0.9rem;
    min-width: 150px;
}

.save-btn.small {
    padding: 8px 15px;
    font-size: 0.9rem;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

.saved-covers-list {
    border: 1px solid #eee;
    background: #fff;
    border-radius: 4px;
    max-height: 400px;
    overflow-y: auto;
}

.cover-group {
    border-bottom: 1px solid #eee;
}

.group-header {
    background: #e9ecef;
    padding: 10px 15px;
    font-family: sans-serif;
    font-size: 0.95rem;
    font-weight: bold;
    color: #495057;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.group-items {
    padding: 5px 0;
    background: #fff;
}

.saved-cover-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 25px;
    font-family: sans-serif;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.1s;
    border-bottom: 1px solid #f8f9fa;
}

.saved-cover-item:last-child {
    border-bottom: none;
}

.saved-cover-item:hover {
    background: #f0f7ff;
    color: #007bff;
}

.saved-cover-item i.fa-times {
    color: #dc3545;
    opacity: 0.3;
    transition: opacity 0.2s;
    font-size: 0.9rem;
    padding: 5px;
}

.saved-cover-item i.fa-times:hover {
    opacity: 1;
}

/* Slider Style */
input[type=range] {
    width: 100%;
    cursor: pointer;
}

/* --- LOCK SCREEN --- */
#lock-screen {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh; height: 100dvh;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.4); 
    backdrop-filter: blur(15px); 
    -webkit-backdrop-filter: blur(15px);
    display: none; 
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    font-family: sans-serif; 
    transition: opacity 0.8s ease, visibility 0.8s;
}

#lock-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.lock-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    letter-spacing: 1px;
    font-weight: 300;
}

.passcode-dots {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    height: 15px;
}

.dot {
    width: 12px; height: 12px;
    border: 2px solid white;
    border-radius: 50%;
    transition: background 0.2s;
}
.dot.filled { background: white; }

.numpad {
    display: grid;
    grid-template-columns: repeat(3, 80px);
    gap: 20px;
}

.num-btn {
    width: 75px; height: 75px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    user-select: none;
}

.num-btn:active {
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0.95);
}

.num-btn.zero {
    grid-column: 2; 
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}
.shake { animation: shake 0.3s ease-in-out; }

@keyframes growNotes {
    0% { transform: scale(0.6); opacity: 0; filter: blur(10px); }
    100% { transform: scale(1); opacity: 1; filter: blur(0); }
}

.animate-grow {
    animation: growNotes 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* --- ANIMATION 1: VERTICAL FLOAT (Wrapper) --- */
/* Constant up and down movement */
@keyframes verticalFloat {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-8px); }
}

/* --- ANIMATION 2: INTERMITTENT ROTATION (Preview) --- */
/* FIX: 3D Depth Trick baked into keyframes to avoid overwrite */
@keyframes intermittentRotate {
    0% { transform: translateZ(1000px) scale(0.5) rotate(calc(var(--rotation) - 1deg)); }
    25% { transform: translateZ(1000px) scale(0.5) rotate(calc(var(--rotation) - 1deg)); } 
    75% { transform: translateZ(1000px) scale(0.5) rotate(calc(var(--rotation) + 1deg)); } 
    100% { transform: translateZ(1000px) scale(0.5) rotate(calc(var(--rotation) + 1deg)); }
}

/* --- FIREFLIES ANIMATION --- */
.firefly {
    position: absolute;
    width: 6px; height: 6px;
    background: #ffc107; /* Gold glow */
    border-radius: 50%;
    box-shadow: 0 0 10px #ffc107, 0 0 20px yellow;
    opacity: 0.8;
    pointer-events: none; /* Allows clicking through them */
    animation: floatFly 12s infinite linear;
    z-index: 5;
}

@keyframes floatFly {
    0% { transform: translate(0, 0); opacity: 0; }
    20% { opacity: 1; }
    50% { transform: translate(60px, -60px); }
    80% { opacity: 1; }
    100% { transform: translate(-30px, -120px); opacity: 0; }
}