:root {
    --aurora-1: #00ff88;
    --aurora-2: #00d4ff;
    --aurora-3: #8b5cf6;
    --panel-bg: rgba(8, 12, 20, 0.92);
    --panel-border: rgba(255, 255, 255, 0.08);
    --glow-color: rgba(0, 255, 136, 0.3);
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.5);
    --accent-gradient: linear-gradient(135deg, var(--aurora-1), var(--aurora-2));
}

[data-theme="dark"] {
    --aurora-1: #00ff88;
    --aurora-2: #00d4ff;
    --aurora-3: #8b5cf6;
    --panel-bg: rgba(8, 12, 20, 0.92);
    --panel-border: rgba(255, 255, 255, 0.08);
    --glow-color: rgba(0, 255, 136, 0.3);
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.5);
    --accent-gradient: linear-gradient(135deg, var(--aurora-1), var(--aurora-2));
}

[data-theme="light"] {
    --aurora-1: #00cc6a;
    --aurora-2: #0099ff;
    --aurora-3: #7c3aed;
    --panel-bg: rgba(255, 255, 255, 0.92);
    --panel-border: rgba(0, 0, 0, 0.08);
    --glow-color: rgba(0, 204, 106, 0.3);
    --text-primary: rgba(0, 0, 0, 0.95);
    --text-secondary: rgba(0, 0, 0, 0.5);
    --accent-gradient: linear-gradient(135deg, var(--aurora-1), var(--aurora-2));
}

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

body {
    font-family: 'Oxanium', -apple-system, BlinkMacSystemFont, sans-serif;
    padding: 0 !important;
    display: block !important;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    background: #000;
}

.container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

#canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    cursor: crosshair;
}

header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 20;
    padding: 1.25rem 1.5rem !important;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent);
    margin: 0 !important;
    display: grid !important;
    grid-template-columns: auto 1fr auto !important;
    align-items: center !important;
    gap: 1rem !important;
    max-width: none !important;
    width: auto !important;
}

header>* {
    pointer-events: auto;
}

header .back-link {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--panel-border);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

header .back-link:hover {
    background: rgba(0, 255, 136, 0.15);
    border-color: rgba(0, 255, 136, 0.3);
    color: var(--aurora-1);
}

header .app-logo {
    justify-self: center;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--accent-gradient) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    filter: drop-shadow(0 0 20px var(--glow-color));
    letter-spacing: 0.02em;
}

header .app-logo svg {
    stroke: var(--aurora-1);
    filter: drop-shadow(0 0 8px var(--aurora-1));
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--panel-border);
    color: var(--text-secondary);
    padding: 0.55rem;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: rgba(0, 255, 136, 0.15);
    border-color: rgba(0, 255, 136, 0.3);
    color: var(--aurora-1);
}

.toggle-controls-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 15;
    background: var(--panel-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--panel-border);
    color: var(--aurora-1);
    padding: 14px;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4), 0 0 40px rgba(0, 255, 136, 0.1);
}

.toggle-controls-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 32px rgba(0, 0, 0, 0.5), 0 0 60px rgba(0, 255, 136, 0.15);
}

.toggle-controls-btn.hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.8) translateY(20px);
}

.toggle-controls-btn svg {
    display: block;
}

.controls {
    position: fixed;
    top: 80px;
    right: 20px;
    bottom: 20px;
    width: 300px;
    display: flex;
    flex-direction: column;
    background: var(--panel-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-radius: 20px;
    border: 1px solid var(--panel-border);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), 0 0 80px rgba(0, 255, 136, 0.05);
    z-index: 10;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateX(calc(100% + 40px));
    opacity: 0;
    overflow: hidden;
}

.controls.visible {
    transform: translateX(0);
    opacity: 1;
}

.controls-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 18px;
    border-bottom: 1px solid var(--panel-border);
    background: rgba(0, 0, 0, 0.2);
}

.controls-header span {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--aurora-1);
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
}

.close-btn:hover {
    color: var(--aurora-1);
    background: rgba(255, 255, 255, 0.1);
}

.controls-scroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.controls-scroll::-webkit-scrollbar {
    width: 4px;
}

.controls-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.controls-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
}

.control-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.section-title {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    padding-bottom: 2px;
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.color-swatch {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 4px 6px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.color-swatch span {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease;
}

.color-swatch small {
    font-size: 0.55rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.color-swatch:hover {
    background: rgba(255, 255, 255, 0.08);
}

.color-swatch:hover span {
    transform: scale(1.1);
}

.color-swatch.active {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.color-swatch.active span {
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.9), 0 4px 12px rgba(0, 0, 0, 0.4);
    transform: scale(1.05);
}

.color-swatch.active small {
    color: var(--text-primary);
}

.shape-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
}

.shape-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 4px 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
    color: var(--text-secondary);
}

.shape-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
}

.shape-btn span {
    font-size: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    font-weight: 600;
    font-family: 'Oxanium', sans-serif;
}

.shape-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.shape-btn:hover .shape-icon {
    transform: scale(1.1);
}

.shape-btn.active {
    background: var(--accent-gradient);
    border-color: transparent;
    color: #000;
    box-shadow: 0 4px 16px rgba(0, 255, 136, 0.25);
}

.shape-btn.active .shape-icon {
    transform: scale(1.05);
}

.interaction-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.interaction-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.25s ease;
    color: var(--text-secondary);
}

.interaction-btn svg {
    transition: transform 0.2s ease;
}

.interaction-btn span {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    font-family: 'Oxanium', sans-serif;
}

.interaction-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.interaction-btn:hover svg {
    transform: scale(1.1);
}

.interaction-btn.active {
    background: var(--accent-gradient);
    border-color: transparent;
    color: #000;
    box-shadow: 0 4px 16px rgba(0, 255, 136, 0.25);
}

.effects-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.select-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.select-group label {
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    font-weight: 600;
}

select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    padding: 10px 28px 10px 12px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-family: 'Oxanium', sans-serif;
    cursor: pointer;
    transition: all 0.2s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%2300ff88' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
}

select:hover,
select:focus {
    border-color: rgba(0, 255, 136, 0.4);
    outline: none;
    background-color: rgba(255, 255, 255, 0.08);
}

select option {
    background: #0a0f18;
    color: #fff;
    padding: 8px;
}

.sliders-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 12px;
}

.slider-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slider-header label {
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
    font-weight: 600;
}

.slider-value {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--aurora-1);
    font-variant-numeric: tabular-nums;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    outline: none;
    border: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--accent-gradient);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 8px rgba(0, 255, 136, 0.3);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 2px 12px rgba(0, 255, 136, 0.5);
}

input[type="range"]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--accent-gradient);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 8px rgba(0, 255, 136, 0.3);
}

.control-footer {
    padding: 14px 16px;
    border-top: 1px solid var(--panel-border);
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.7rem;
    font-weight: 700;
    font-family: 'Oxanium', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.25s ease;
    border: 1px solid;
}

.action-btn svg {
    transition: transform 0.3s ease;
}

.random-btn {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(236, 72, 153, 0.15));
    border-color: rgba(168, 85, 247, 0.3);
    color: #c084fc;
}

.random-btn:hover {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.25), rgba(236, 72, 153, 0.25));
    border-color: rgba(168, 85, 247, 0.5);
    box-shadow: 0 4px 20px rgba(168, 85, 247, 0.2);
    transform: translateY(-1px);
}

.random-btn:hover svg {
    transform: rotate(180deg);
}

.reset-btn {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--panel-border);
    color: var(--text-secondary);
}

.reset-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.reset-btn:hover svg {
    transform: rotate(-180deg);
}

.stats-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 8px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
}

.stat {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.stat-value {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--aurora-1);
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.stat-divider {
    width: 1px;
    height: 16px;
    background: var(--panel-border);
}

.instructions {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
    z-index: 5;
    animation: instructionsFade 4s forwards;
}

.instructions p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.5);
    text-shadow: 0 0 30px rgba(0, 255, 136, 0.4);
    letter-spacing: 0.08em;
    font-weight: 600;
}

@keyframes instructionsFade {
    0% {
        opacity: 1;
    }

    70% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        visibility: hidden;
    }
}

footer {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-secondary);
    font-size: 0.7rem;
    z-index: 5;
}

footer a {
    color: var(--aurora-1);
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

footer a:hover {
    opacity: 1;
}

@media (max-width: 768px) {
    .controls {
        width: calc(100% - 32px);
        max-width: 340px;
        top: auto;
        bottom: 80px;
        right: 16px;
        max-height: 55vh;
    }

    .toggle-controls-btn {
        bottom: 20px;
        right: 20px;
    }

    header .app-logo {
        font-size: 1.2rem;
    }

    .instructions {
        top: 35%;
    }

    .instructions p {
        font-size: 0.95rem;
        padding: 0 24px;
    }

    footer {
        bottom: 16px;
    }

    .sliders-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

@media (max-width: 420px) {
    header {
        padding: 1rem !important;
    }

    header .app-logo {
        font-size: 1rem;
    }

    .controls {
        width: calc(100% - 24px);
        right: 12px;
        bottom: 70px;
        max-height: 50vh;
    }

    .controls-scroll {
        padding: 12px;
        gap: 16px;
    }

    .toggle-controls-btn {
        bottom: 16px;
        right: 16px;
        padding: 12px;
    }

    .color-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
    }

    .color-swatch {
        padding: 6px 2px 4px;
    }

    .color-swatch span {
        width: 24px;
        height: 24px;
    }

    .shape-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 4px;
    }

    .shape-btn {
        padding: 8px 2px 6px;
    }

    .shape-icon {
        width: 22px;
        height: 22px;
    }

    .shape-btn span {
        font-size: 0.45rem;
    }

    .interaction-grid {
        gap: 6px;
    }

    .interaction-btn {
        padding: 10px 6px;
    }
}