@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&family=Space+Grotesk:wght@400;600&display=swap');

:root {
    --bg-1: #0f0f1a;
    --bg-2: #11131b;
    --accent: #ff7a1a;
    --accent-2: #ffd29b;
    --muted: #9aa4b2;
    --card: rgba(255,255,255,0.04);
    --glass: rgba(255,255,255,0.03);
    --glass-strong: rgba(255,255,255,0.06);
    --glass-border: rgba(255,255,255,0.06);
    --radius: 14px;
    --radius-sm: 8px;
    --shadow-lg: 0 20px 40px rgba(2,6,23,0.6);
    --shadow-md: 0 8px 20px rgba(2,6,23,0.45);
    --max-width: 1180px;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html, body {
    height: 100%;
}
body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
    background: 
        linear-gradient(0deg, transparent 24%, rgba(255,122,26,0.1) 25%, rgba(255,122,26,0.1) 26%, transparent 27%, transparent 74%, rgba(255,122,26,0.1) 75%, rgba(255,122,26,0.1) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(255,122,26,0.1) 25%, rgba(255,122,26,0.1) 26%, transparent 27%, transparent 74%, rgba(255,122,26,0.1) 75%, rgba(255,122,26,0.1) 76%, transparent 77%, transparent),
        radial-gradient(1200px 600px at 10% 10%, rgba(255,122,26,0.06), transparent 6%),
        linear-gradient(180deg, var(--bg-1), var(--bg-2));
    background-size: 50px 50px, 50px 50px, 100% 100%, 100% 100%;
    background-attachment: fixed, fixed, fixed, fixed;
    color: #eaf0f6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding: 48px 24px;
    position: relative;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.header-left {
    display: flex;
    flex-direction: column;
}
h1 {
    font-family: 'Space Grotesk', 'Inter';
    font-weight: 700;
    font-size: 28px;
    letter-spacing: -0.02em;
}
.description {
    color: var(--muted);
    font-size: 14px;
    margin-top: 6px;
}

.card-panel {
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.03);
}

.top-row {
    display: flex;
    gap: 20px;
    align-items: stretch;
}
.left-col {
    flex: 1;
}
.right-col {
    width: 420px;
}

.mode-selector {
    display: flex;
    gap: 10px;
    padding: 8px;
    background: transparent;
    border-radius: 12px;
}
.mode-btn {
    padding: 8px 16px;
    border-radius: 10px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-weight: 600;
}
.mode-btn.active {
    background: linear-gradient(90deg, var(--accent), #ffb07a);
    color: #081018;
    box-shadow: 0 6px 18px rgba(255,122,26,0.14);
    border-color: rgba(255,255,255,0.04);
}

.upload-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-top: 18px;
}
.upload-box {
    background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
    padding: 14px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.upload-box h3 {
    font-size: 15px;
    color: #f6f8fb;
    margin: 6px 0;
}
.upload-label {
    background: linear-gradient(180deg, var(--accent), var(--accent-2));
    color: #081018;
    padding: 10px 16px;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    border: none;
}
.file-input {
    display: none;
}
.preview-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
}
.preview-canvas {
    width: 220px;
    height: 220px;
    border-radius: 10px;
    background: #0b0c10;
    border: 1px solid rgba(255,255,255,0.03);
    box-shadow: var(--shadow-md);
    object-fit: cover;
}

.controls {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 14px;
}
.btn {
    padding: 10px 18px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-weight: 700;
}
.btn.primary {
    background: linear-gradient(90deg, var(--accent), #ffb07a);
    color: #081018;
    box-shadow: 0 10px 30px rgba(255,122,26,0.14);
}
.btn.ghost {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.06);
    color: var(--muted);
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.draw-section {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 18px;
    margin-top: 18px;
}
.canvas-container {
    background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
    padding: 14px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.03);
}
.canvas-container h3 {
    font-size: 15px;
    margin-bottom: 10px;
}
.draw-canvas {
    width: 100%;
    height: 360px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.04);
    background: #0b0c10;
    cursor: crosshair;
    display: block;
}

.drawing-tools {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border-radius: 10px;
    background: linear-gradient(180deg, rgba(255,255,255,0.01), transparent);
    border: 1px solid rgba(255,255,255,0.02);
}
.drawing-tools label {
    font-size: 13px;
    color: var(--muted);
    font-weight: 600;
}
.tool-btn {
    padding: 8px 12px;
    border-radius: 8px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.04);
    color: var(--muted);
    cursor: pointer;
}
#brushSize {
    width: 110px;
}
#brushSizeValue {
    color: var(--accent);
    font-weight: 700;
}

.animation-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.03);
    background: linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.005));
}
#animationCanvas {
    width: 256px;
    height: 256px;
    border-radius: 10px;
    border: 2px solid rgba(255,255,255,0.04);
    box-shadow: 0 18px 40px rgba(2,6,23,0.6);
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-radius: 10px;
    background: linear-gradient(90deg, rgba(255,255,255,0.015), transparent);
    border: 1px solid rgba(255,255,255,0.02);
    color: var(--muted);
    font-weight: 600;
}

.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--muted);
    font-size: 13px;
    padding-top: 6px;
}

/* small screens */
@media (max-width: 1000px) {
    .top-row {
        flex-direction: column;
    }
    .draw-section {
        grid-template-columns: 1fr;
    }
    .right-col {
        width: 100%;
    }
    .preview-canvas {
        width: 180px;
        height: 180px;
    }
    #animationCanvas {
        max-width: 100%;
    }
}

@media (max-width: 520px) {
    body {
        padding: 20px;
    }
    h1 {
        font-size: 20px;
    }
    .preview-canvas {
        width: 140px;
        height: 140px;
    }
    .draw-canvas {
        height: 260px;
    }
    .controls {
        flex-direction: column;
    }
}

button:focus,
.btn:focus,
.mode-btn:focus {
    outline: 2px solid rgba(255,122,26,0.14);
    outline-offset: 3px;
}

/* small helpers */
.muted {
    color: var(--muted);
}
.center {
    display: flex;
    align-items: center;
    justify-content: center;
}
@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:wght@100;200;300;400;500;600;700;800;900&display=swap');

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

:root {
    --accent-color: #FF6600;
    --accent-hover: #e67d17;
    --accent-dark: #d97014;
    --dark-bg: #000000;
    --card-bg: #1e1e1e;
    --card-bg-hover: #232323;
    --glass-bg: rgba(30, 30, 30, 0.8);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(255, 102, 0, 0.3);

    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
    --shadow-accent: 0 4px 15px rgba(255, 102, 0, 0.4);
    --shadow-accent-lg: 0 12px 30px rgba(255, 102, 0, 0.4);

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 50px;

    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 20px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;

    --font-main: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--dark-bg);
    min-height: 100vh;
    scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-main);
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2rem, 6vw, 4.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff, #a0a0a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 3.5rem);
    font-weight: 300;
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 2rem);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

.description {
    color: var(--text-secondary);
    font-size: clamp(1rem, 2vw, 1.3rem);
    line-height: 1.7;
    text-align: center;
}

.highlight-text {
    color: var(--accent-color);
    font-weight: 600;
}
.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.card,
.upload-box,
.canvas-container {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover,
.upload-box:hover,
.canvas-container:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.upload-section,
.draw-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.upload-box h3,
.canvas-container h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.3rem;
    font-weight: 600;
    text-align: center;
}

button,
.btn {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: #0a0a0a;
    border: none;
    border-radius: var(--radius-sm);
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-main);
    cursor: pointer;
    box-shadow: var(--shadow-accent);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

button:hover:not(:disabled),
.btn:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-dark));
    transform: translateY(-3px);
    box-shadow: var(--shadow-accent-lg);
}

button:active:not(:disabled),
.btn:active:not(:disabled) {
    transform: translateY(0);
}

button:disabled,
.btn:disabled {
    background: #cccccc;
    color: #888888;
    cursor: not-allowed;
    box-shadow: none;
    opacity: 0.6;
}

button:disabled:hover,
.btn:disabled:hover {
    transform: none;
}

.btn-secondary {
    background: rgba(40, 40, 40, 0.8);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: rgba(255, 102, 0, 0.1);
    color: var(--accent-color);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--accent-color);
    color: #0a0a0a;
}

.mode-selector {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.mode-btn {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-btn:hover {
    border-color: var(--border-accent);
    color: var(--accent-color);
    transform: translateY(-2px);
}

.mode-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #0a0a0a;
    box-shadow: var(--shadow-accent);
}

.mode-btn.active:hover {
    background: var(--accent-hover);
}

.mode-section {
    display: none;
}

.mode-section.active {
    display: block;
}

input[type="file"] {
    display: none;
}

.upload-label {
    display: inline-block;
    background: var(--accent-color);
    color: #0a0a0a;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-accent);
}

.upload-label:hover {
    background: var(--accent-hover);
    transform: scale(1.02);
    box-shadow: var(--shadow-accent-lg);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 120px;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    transition: background 0.3s;
}

input[type="range"]:hover {
    background: rgba(255, 255, 255, 0.15);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(255, 102, 0, 0.5);
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(255, 102, 0, 0.5);
}

input[type="range"]::-moz-range-thumb:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
}

input[type="color"] {
    width: 50px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: transparent;
    transition: border-color 0.3s;
}

input[type="color"]:hover {
    border-color: var(--accent-color);
}

.drawing-tools {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.drawing-tools label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

#brushSizeValue {
    color: var(--accent-color);
    font-weight: 700;
    min-width: 45px;
    font-size: 0.95rem;
}

.tool-btn {
    padding: 8px 20px;
    font-size: 0.9rem;
    background: rgba(40, 40, 40, 0.8);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.tool-btn:hover {
    background: rgba(255, 102, 0, 0.1);
    color: var(--accent-color);
    transform: scale(1.02);
}

.preview-container {
    margin-top: var(--spacing-md);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 180px;
}

.preview-canvas {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    max-width: 100%;
    height: auto;
    box-shadow: var(--shadow-sm);
    transition: border-color 0.3s;
}

.preview-canvas:hover {
    border-color: var(--accent-color);
}

.draw-canvas {
    border: 3px solid var(--accent-color);
    border-radius: var(--radius-sm);
    background: #000000;
    cursor: crosshair;
    box-shadow: 0 4px 20px rgba(255, 102, 0, 0.3);
    transition: box-shadow 0.3s;
}

.draw-canvas:hover {
    box-shadow: 0 8px 30px rgba(255, 102, 0, 0.5);
}

.animation-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    min-height: 320px;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

#animationCanvas {
    border: 3px solid var(--accent-color);
    border-radius: var(--radius-sm);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.4);
    max-width: 100%;
    height: auto;
}

.controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.info {
    text-align: center;
    margin-top: var(--spacing-lg);
}

#status {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-color);
    border-radius: var(--radius-sm);
    display: inline-block;
}

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

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .container {
        padding: var(--spacing-md);
    }
    
    
    .upload-section,
    .draw-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .controls {
        flex-direction: column;
        width: 100%;
    }

    button,
    .btn {
        width: 100%;
        padding: 14px 24px;
    }

    .mode-selector {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .mode-btn {
        width: 100%;
    }

    .drawing-tools {
        font-size: 0.85rem;
        gap: var(--spacing-xs);
    }
}

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

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 102, 0, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(255, 102, 0, 0);
    }
}

.container {
    animation: fadeInUp 0.8s ease-out;
}
button:focus,
.btn:focus,
a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}