:root {
    --primary: #ff5e91;
    --hover: #e8457c;
    --background: #f7f9fa;
    --surface: #ffffff;
    --text: #333333;
    --text-light: #666666;
    --border: #eeeeee;
    --portal-pink-shadow: rgba(255, 94, 145, 0.2);
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: var(--background);
    min-height: 100vh;
    padding: 20px;
    color: var(--text);
    -webkit-tap-highlight-color: transparent;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

header {
    text-align: center;
    color: var(--text);
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 10px;
    animation: fadeInDown 0.6s ease;
    color: var(--primary);
}

header p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 15px;
}

.platform-selector {
    display: inline-block;
    margin-top: 10px;
}

.platform-selector label {
    color: var(--text);
    font-weight: 700;
    margin-right: 10px;
}

.platform-select {
    padding: 8px 16px;
    border: 2px solid var(--border);
    border-radius: 20px;
    background: var(--surface);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans JP', sans-serif;
}

.platform-select:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 20px;
    align-items: start;
}

/* Canvas Section */
.canvas-section {
    background: var(--surface);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border);
}

.canvas-wrapper {
    background: #fdfdfd;
    border-radius: 10px;
    padding: 10px;
    display: inline-block;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border);
}

#mainCanvas {
    display: block;
    border: 2px solid #ddd;
    border-radius: 5px;
    background: white;
    cursor: default;
}

.canvas-controls {
    margin-top: 15px;
    display: flex;
    gap: 8px;
    justify-content: center;
    align-items: stretch;
}

.control-btn,
.download-btn,
.action-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans JP', sans-serif;
}

.control-btn {
    background: #f0f0f0;
    color: var(--text);
}

.control-btn:hover {
    transform: translateY(-2px);
    background: #e5e5e5;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

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

.download-btn {
    background: var(--primary);
    color: white;
    flex: 2;
    font-size: 1.1rem;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 15px var(--portal-pink-shadow);
}

.download-btn:hover {
    transform: translateY(-2px);
    background: var(--hover);
    box-shadow: 0 5px 20px rgba(255, 94, 145, 0.4);
}

/* Tools Panel */
.tools-panel {
    background: var(--surface);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border);
    max-height: 80vh;
    overflow-y: auto;
}

.tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-btn {
    flex: 1;
    padding: 8px 4px;
    border: 1px solid var(--border);
    background: #fdfdfd;
    color: var(--text-light);
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans JP', sans-serif;
    min-width: 65px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    line-height: 1.2;
}

.tab-btn:hover {
    transform: translateY(-2px);
    background: #f5f5f5;
    border-color: var(--primary);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 4px 10px var(--portal-pink-shadow);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

/* Form Elements */
label {
    display: block;
    margin-top: 15px;
    margin-bottom: 5px;
    font-weight: 700;
    color: #555;
}

.text-input,
.select-input,
.number-input {
    width: 100%;
    padding: 10px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Noto Sans JP', sans-serif;
    transition: border-color 0.3s ease;
}

.text-input:focus,
.select-input:focus,
.number-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--portal-pink-shadow);
}

.slider {
    width: calc(100% - 60px);
    margin-right: 10px;
}

.color-input {
    width: 60px;
    height: 40px;
    border: 2px solid #ffecd2;
    border-radius: 8px;
    cursor: pointer;
    margin-right: 5px;
}

.file-input {
    display: none;
}

.upload-btn {
    display: block;
    width: 100%;
    padding: 15px;
    background: #f0f0f0;
    color: var(--text);
    text-align: center;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

.upload-btn:hover {
    transform: translateY(-2px);
    background: #e5e5e5;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.action-btn {
    width: 100%;
    margin-top: 15px;
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 10px var(--portal-pink-shadow);
}

.action-btn:hover {
    transform: translateY(-2px);
    background: var(--hover);
    box-shadow: 0 5px 15px rgba(255, 94, 145, 0.4);
}

/* Background Grid */
.background-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 10px;
}

.bg-item {
    aspect-ratio: 1;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.bg-item:hover {
    transform: scale(1.05);
    border-color: #fa709a;
    box-shadow: 0 5px 15px rgba(250, 112, 154, 0.3);
}

/* Template Buttons */
.template-btns {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-top: 10px;
}

.template-btn {
    padding: 12px;
    border: 2px solid #ffecd2;
    border-radius: 8px;
    background: white;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans JP', sans-serif;
}

.template-btn:hover {
    background: linear-gradient(135deg, #ffecd2, #fcb69f);
    border-color: #fcb69f;
    transform: translateX(5px);
}

/* Layers List */
.layers-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.layer-item {
    background: linear-gradient(135deg, #ffecd2, #fcb69f);
    padding: 12px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    cursor: move;
}

.layer-item:hover {
    background: linear-gradient(135deg, #fcb69f, #ffecd2);
    transform: translateX(3px);
}

.layer-item.drag-over {
    border: 2px dashed #fa709a;
    background: rgba(250, 112, 154, 0.2);
}

.layer-item.selected {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    border: 2px solid #4facfe;
    box-shadow: 0 3px 10px rgba(79, 172, 254, 0.4);
}

.layer-info {
    flex: 1;
    font-weight: 700;
}

.layer-controls {
    display: flex;
    gap: 5px;
}

.layer-btn {
    padding: 5px 10px;
    border: none;
    border-radius: 5px;
    background: #fa709a;
    color: white;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.layer-btn:hover {
    background: #f5576c;
    transform: scale(1.1);
}

/* Gradient Controls */
.gradient-controls,
.stroke-controls,
.shadow-controls,
.overlay-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 5px;
}

/* Category Buttons */
.category-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.cat-btn {
    background: #f0f0f0;
    border: 1px solid #ddd;
    border-radius: 20px;
    padding: 6px 12px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    color: #666;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: bold;
    white-space: normal;
    /* Allow wrapping */
    text-align: center;
    line-height: 1.2;
    height: auto;
    min-height: 34px;
    display: inline-flex;
    /* Better vertical alignment */
    align-items: center;
    justify-content: center;
    max-width: 100%;
    /* Prevent overflow */
}

.cat-btn:hover {
    background: #e0e0e0;
}

.cat-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scrollbar */
.tools-panel::-webkit-scrollbar {
    width: 8px;
}

.tools-panel::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.tools-panel::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #fa709a, #fee140);
    border-radius: 10px;
}

.tools-panel::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #f5576c, #fdd835);
}

/* Responsive */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .tools-panel {
        max-height: none;
        backdrop-filter: none;
        /* Remove to allow position: fixed children to be relative to viewport */
        -webkit-backdrop-filter: none;
        transform: none;
        /* Ensure no transform creates containing block */
    }

    .background-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* Style Template Buttons */
.style-template-btns {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin: 10px 0 20px 0;
}

.style-template-btn {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fdfdfd;
    color: var(--text);
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.style-template-btn:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* Stamps Grid */
.stamps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.stamp-item {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: #fff;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.stamp-item:hover {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    transform: scale(1.05);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
}

/* Frames Grid */
.frames-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.frame-item {
    padding: 20px;
    border: 2px solid var(--border);
    border-radius: 10px;
    background: #fdfdfd;
    color: var(--text);
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.frame-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

/* Bubble Type Buttons */
.bubble-type-btns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin: 10px 0;
}

.bubble-type-btn {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fdfdfd;
    font-weight: bold;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans JP', sans-serif;
}

.bubble-type-btn:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.bubble-type-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Brush Mode Buttons */
.brush-btn {
    flex: 1;
    padding: 8px;
    border: 2px solid #ddd;
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    font-family: inherit;
    font-weight: bold;
}

.brush-btn:hover {
    background: #ffecd2;
}

.brush-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Tail Direction Buttons */
.tail-direction-btns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin: 10px 0;
}

.tail-btn {
    padding: 8px;
    border: 2px solid #ddd;
    border-radius: 8px;
    background: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.tail-btn:hover {
    background: #ffecd2;
}

.tail-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Effect Controls */
.effect-controls {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin: 10px 0;
}

.effect-controls label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    cursor: pointer;
    margin: 0;
}

/* Drag and Drop Visuals */
.layer-item.dragging {
    opacity: 0.5;
    background: #e0f7fa;
    border: 2px dashed #00bcd4;
}

.layer-item.drag-over {
    transform: scale(1.02);
    border: 2px dashed #fa709a;
    background: rgba(250, 112, 154, 0.1);
    box-shadow: 0 0 10px rgba(250, 112, 154, 0.3);
}

/* Radio Groups */
.radio-group-container {
    margin-bottom: 10px;
}

.radio-group {
    display: flex;
    gap: 10px;
    margin-top: 5px;
    flex-wrap: wrap;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    font-size: 14px;
    background: #fff;
    padding: 5px 10px;
    border-radius: 15px;
    border: 1px solid #ddd;
    transition: all 0.2s;
}

.radio-group label:hover {
    background: #f0f0f0;
}

.radio-group input[type="radio"] {
    accent-color: #ff69b4;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .container {
        padding: 5px;
    }

    header {
        margin-bottom: 8px;
    }

    header h1 {
        font-size: 1.3rem;
        margin-bottom: 3px;
    }

    header p {
        font-size: 0.8rem;
        margin-bottom: 5px;
    }

    .main-content {
        grid-template-columns: 1fr;
    }

    .canvas-section {
        padding: 10px;
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        border-radius: 0 0 15px 15px;
        margin: -5px -5px 15px -5px;
        /* Negative margin to flush with container edge if needed, or just 0 */
        width: calc(100% + 10px);
        /* Counteract padding if container has it */
        margin-left: -5px;
        margin-bottom: 5px;
        /* Reduced spacing */
    }

    .canvas-wrapper {
        width: 100%;
        text-align: center;
        overflow: hidden;
        display: flex;
        justify-content: center;
    }

    #mainCanvas {
        max-width: 100%;
        height: auto !important;
        max-height: 35vh;
        /* Limit height on mobile to prevent overlaying editor */
        width: auto;
        /* Allow width to shrink */
        object-fit: contain;
    }

    /* Force aspect ratio */
    header h1 {
        font-size: 1.8rem;
    }

    .canvas-controls {
        flex-wrap: wrap;
        justify-content: center;
        gap: 5px;
    }

    .control-btn,
    .download-btn {
        min-width: 60px;
        margin: 0;
        padding: 8px 6px;
        font-size: 0.75rem;
    }

    .control-btn {
        flex: 1;
    }

    .download-btn {
        flex: 2;
        font-size: 0.85rem;
    }

    .tools-panel {
        margin-top: 5px;
        /* Reduced spacing */
        padding-top: 0;
    }

    .tabs {
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 5px;
        padding-top: 10px;
        -webkit-overflow-scrolling: touch;
        position: relative;
        /* Changed from sticky to relative/static for mobile */
        /* top: var(--canvas-height, 300px); */
        z-index: 90;
        background: rgba(255, 255, 255, 0.95);
        margin: 0 -15px 10px -15px;
        /* Negative margin to span full width */
        padding-left: 15px;
        padding-right: 15px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        display: flex;
        flex-wrap: wrap;
        /* Allow wrapping for 2 rows */
        justify-content: space-between;
        padding-bottom: 5px;
    }

    .tab-btn {
        flex: 0 0 23%;
        width: 23%;
        padding: 5px 2px;
        font-size: 10px;
        flex-shrink: 0;
        text-align: center;
        border-bottom: 2px solid transparent;
        margin-bottom: 4px;
        white-space: normal;
        line-height: 1.1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: 42px;
        gap: 0;
        min-width: unset;
    }

    .template-btns {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .template-btn {
        flex: 1 1 45%;
        text-align: center;
    }

    /* Mobile FAB for Text Button */
    .tab-content#text-tab {
        padding-bottom: 80px;
        /* Space for FAB */
    }

    #addTextBtn {
        position: fixed;
        bottom: 20px;
        right: 20px;
        width: auto;
        height: auto;
        min-width: 80px;
        padding: 12px 24px;
        border-radius: 30px;
        font-size: 16px;
        font-weight: bold;
        color: white;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        z-index: 1001;
        display: none;
        /* Hidden by default */
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, #fa709a, #fee140);
        border: none;
    }

    #addTextBtn::after {
        content: none;
    }

    /* Show FAB when text tab is active (handled by JS toggling display, or CSS sibling selector?) */
    /* Since buttons are not inside tab-content in HTML structure? */
    /* Wait, #addTextBtn IS inside .tab-content#text-tab line 215. */
    /* So if #text-tab is displayed, #addTextBtn is displayed. */
    /* But we want to override default display for mobile */
    .tab-content#text-tab.active #addTextBtn {
        display: flex;
    }
}

/* Image Save Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s;
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 500px;
    border-radius: 10px;
    text-align: center;
    position: relative;
}

.close-modal {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 15px;
    top: 5px;
}

.close-modal:hover,
.close-modal:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

#saveImagePreview {
    max-width: 100%;
    height: auto;
    margin-top: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

/* Custom Fonts */
@font-face {
    font-family: 'LightNovelPOPv2';
    src: url('assets/fonts/LightNovelPOPv2.otf');
}

@font-face {
    font-family: 'AkazukiPOP';
    src: url('assets/fonts/AkazukiPOP.otf');
}