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

:root {
    --bg-dark: #1a1625;
    --bg-panel: #252033;
    --bg-hover: #322945;
    --accent-pink: #ff6b9d;
    --accent-purple: #9b59b6;
    --accent-gradient: linear-gradient(135deg, #9b59b6 0%, #ff6b9d 100%);
    --text-primary: #f8f4ff;
    --text-secondary: #a89cc8;
    --border-color: #3d3451;
    --green: #2ecc71;
    --blue: #3498db;
    --danger: #e74c3c;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

#app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

#header {
    background: var(--accent-gradient);
    padding: 16px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

#header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

#title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    cursor: pointer;
    position: relative;
}

#subtitle {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 4px;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
}

#main-content {
    display: flex;
    flex: 1;
    gap: 0;
}

#toolbar {
    width: 260px;
    background: var(--bg-panel);
    padding: 16px;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    flex-shrink: 0;
}

.tool-section {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.tool-section:last-child {
    border-bottom: none;
}

.tool-section h3 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn {
    display: block;
    width: 100%;
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 8px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
}

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-small {
    width: auto;
    padding: 8px 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.btn-tiny {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-tiny.active {
    background: var(--accent-pink);
    border-color: var(--accent-pink);
}

.btn-tiny.italic {
    font-style: italic;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-green {
    background: var(--green);
    color: white;
}

.btn-blue {
    background: var(--blue);
    color: white;
}

.btn-export {
    font-weight: 600;
}

.slider-group {
    margin-bottom: 12px;
}

.slider-group label {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-dark);
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-pink);
    cursor: pointer;
    transition: transform 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.button-row {
    display: flex;
    gap: 8px;
}

.text-field {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.text-field:focus {
    outline: none;
    border-color: var(--accent-pink);
}

.inline-controls {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
    align-items: center;
}

select {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
}

select:focus {
    outline: none;
    border-color: var(--accent-pink);
}

.size-input {
    width: 60px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-family: inherit;
    text-align: center;
}

input[type="color"] {
    width: 40px;
    height: 36px;
    padding: 2px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    cursor: pointer;
}

#canvas-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: 
        linear-gradient(135deg, var(--bg-dark) 0%, #1e1a2e 100%);
    overflow: hidden;
}

#canvas-wrapper {
    max-width: 100%;
    max-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#canvas {
    border-radius: 4px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    cursor: default;
}

#layers-panel {
    width: 200px;
    background: var(--bg-panel);
    padding: 16px;
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
    flex-shrink: 0;
}

#layers-panel h3 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#layers-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.layer-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    border-radius: 6px;
    background: var(--bg-dark);
    cursor: pointer;
    transition: all 0.2s;
}

.layer-item:hover {
    background: var(--bg-hover);
}

.layer-item.selected {
    background: var(--accent-purple);
    background: linear-gradient(135deg, rgba(155,89,182,0.4) 0%, rgba(255,107,157,0.4) 100%);
    border: 1px solid var(--accent-pink);
}

.visibility-btn {
    background: none;
    border: none;
    font-size: 0.9rem;
    cursor: pointer;
    padding: 2px;
}

.layer-name {
    flex: 1;
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.layer-actions {
    display: flex;
    gap: 2px;
}

.layer-actions button {
    background: none;
    border: none;
    font-size: 0.7rem;
    cursor: pointer;
    padding: 2px;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.layer-actions button:hover {
    opacity: 1;
}

#footer {
    background: var(--bg-panel);
    padding: 12px 24px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

#footer a {
    color: var(--accent-pink);
    text-decoration: none;
}

#footer a:hover {
    text-decoration: underline;
}

#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 22, 37, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-content {
    text-align: center;
}

.loading-berry {
    font-size: 4rem;
    display: block;
    animation: berryBounce 0.6s ease infinite;
}

.loading-content p {
    margin-top: 16px;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

#confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
}

.confetti {
    position: absolute;
    top: -10px;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    animation: confettiFall 2s ease-out forwards;
}

@keyframes berryBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes popIn {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes confettiFall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Mobile Responsive */
@media (max-width: 900px) {
    #main-content {
        flex-direction: column;
    }
    
    #toolbar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        padding: 12px;
    }
    
    .tool-section {
        flex: 1;
        min-width: 150px;
        margin-bottom: 0;
        padding-bottom: 0;
        border-bottom: none;
    }
    
    #canvas-container {
        padding: 12px;
    }
    
    #layers-panel {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--border-color);
        max-height: 150px;
    }
    
    #layers-list {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .layer-item {
        flex: 0 0 auto;
    }
}

@media (max-width: 600px) {
    #title {
        font-size: 1.5rem;
    }
    
    #subtitle {
        font-size: 0.75rem;
    }
    
    .tool-section {
        min-width: 100%;
    }
    
    .btn {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
}