:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --secondary: #64748b;
    --secondary-hover: #475569;
    --success: #10b981;
    --success-hover: #059669;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-radius: 12px;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.container {
    width: 100%;
    max-width: 1200px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

header {
    text-align: center;
    margin-bottom: 1rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-muted);
}

.controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.file-input-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#imageInput {
    display: none;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-family: inherit;
    font-size: 0.95rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(1);
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--secondary-hover);
    transform: translateY(-1px);
}

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

.btn-success:hover:not(:disabled) {
    background-color: var(--success-hover);
    transform: translateY(-1px);
}

#fileCount {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.canvas-container {
    width: 100%;
    aspect-ratio: 9/16;
    background: #000;
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    border: 1px solid #334155;
}

canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.placeholder-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-size: 1.2rem;
    pointer-events: none;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
    }

}

/* Update to controls to allow multiple panels */
.settings-panel {
    margin-top: -1rem;
    /* tighter spacing */
    justify-content: space-around;
    background: #1e293b;
    border-top: 1px solid #334155;
    width: 100%;
    max-width: 100%;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 200px;
}

.control-group label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.range-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.range-wrapper input[type="range"] {
    flex: 1;
    cursor: pointer;
}

.range-wrapper span {
    font-size: 0.85rem;
    color: var(--text-main);
    width: 40px;
    text-align: right;
}

.color-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

input[type="color"] {
    -webkit-appearance: none;
    appearance: none;
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    overflow: hidden;
    cursor: pointer;
    background: none;
    padding: 0;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
    border: 2px solid #fff;
}

.actions-top,
.actions-bottom {
    width: 100%;
    display: flex;
    justify-content: center;
}

.actions-top {
    margin-bottom: -1rem;
    /* Closer to canvas */
    z-index: 10;
}

.actions-bottom {
    margin-top: -1rem;
    /* Closer to canvas */
}