/* CSS Reset and Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #ff00ff;
    --secondary: #00ffff;
    --bg-dark: #1a1a2e;
    --bg-card: #16213e;
    --bg-input: #0f3460;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #e94560;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

html {
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
header {
    text-align: center;
    padding: 30px 20px;
    margin-bottom: 20px;
}

header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(1.8rem, 5vw, 3rem);
    font-weight: 900;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
    text-shadow: 0 0 30px rgba(255, 0, 255, 0.3);
}

@keyframes shimmer {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 10px;
}

/* Main Layout */
main {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 30px;
    flex: 1;
}

/* Controls Panel */
.controls-panel {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.control-group {
    margin-bottom: 20px;
}

.control-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.control-group input[type="text"],
.control-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 2px solid transparent;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.control-group input[type="text"]:focus,
.control-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.2);
}

.control-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a0a0a0' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

.control-group select option {
    background: var(--bg-dark);
    color: var(--text-primary);
}

/* Range Sliders */
.control-group input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--bg-input);
    border-radius: 3px;
    appearance: none;
    cursor: pointer;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
    transition: transform 0.2s;
}

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

.control-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
}

/* Color Controls */
.color-controls {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.color-picker {
    margin-bottom: 0;
}

.color-picker input[type="color"] {
    width: 100%;
    height: 45px;
    padding: 3px;
    background: var(--bg-input);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.color-picker input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 5px;
}

/* Checkbox */
.checkbox-group {
    margin-bottom: 25px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    text-transform: none;
    font-size: 1rem;
    color: var(--text-primary);
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* Download Button */
.download-btn {
    width: 100%;
    padding: 15px 25px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 0, 255, 0.4);
}

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

/* Preview Panel */
.preview-panel {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.preview-container {
    width: 100%;
    height: 100%;
    min-height: 360px;
    background: var(--bg-dark);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

#preview-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
}

.preview-text {
    font-size: 72px;
    font-weight: bold;
    text-align: center;
    word-break: break-word;
    padding: 20px;
    z-index: 1;
}

/* Retro Style Effects */
.preview-text.neon {
    font-family: 'Monoton', cursive;
    color: var(--primary);
    text-shadow:
        0 0 5px var(--primary),
        0 0 10px var(--primary),
        0 0 20px var(--primary),
        0 0 40px var(--secondary),
        0 0 80px var(--secondary);
}

.preview-text.neon.animated {
    animation: neonPulse 2s ease-in-out infinite;
}

@keyframes neonPulse {
    0%, 100% {
        text-shadow:
            0 0 5px var(--primary),
            0 0 10px var(--primary),
            0 0 20px var(--primary),
            0 0 40px var(--secondary),
            0 0 80px var(--secondary);
    }
    50% {
        text-shadow:
            0 0 2px var(--primary),
            0 0 5px var(--primary),
            0 0 10px var(--primary),
            0 0 20px var(--secondary),
            0 0 40px var(--secondary);
    }
}

.preview-text.chrome {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    background: linear-gradient(
        180deg,
        #fff 0%,
        #f0f0f0 30%,
        #888 50%,
        #333 51%,
        #444 60%,
        #888 80%,
        #fff 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(2px 2px 0 var(--primary)) drop-shadow(-1px -1px 0 var(--secondary));
}

.preview-text.chrome.animated {
    animation: chromeShine 3s linear infinite;
}

@keyframes chromeShine {
    0% { filter: drop-shadow(2px 2px 0 var(--primary)) drop-shadow(-1px -1px 0 var(--secondary)) brightness(1); }
    50% { filter: drop-shadow(2px 2px 0 var(--primary)) drop-shadow(-1px -1px 0 var(--secondary)) brightness(1.3); }
    100% { filter: drop-shadow(2px 2px 0 var(--primary)) drop-shadow(-1px -1px 0 var(--secondary)) brightness(1); }
}

.preview-text.arcade {
    font-family: 'Press Start 2P', cursive;
    color: var(--primary);
    text-shadow:
        3px 3px 0 var(--secondary),
        6px 6px 0 rgba(0, 0, 0, 0.5);
    letter-spacing: 3px;
}

.preview-text.arcade.animated {
    animation: arcadeBounce 0.5s ease-in-out infinite;
}

@keyframes arcadeBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.preview-text.vhs {
    font-family: 'VT323', monospace;
    color: var(--primary);
    position: relative;
}

.preview-text.vhs::before,
.preview-text.vhs::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.preview-text.vhs::before {
    color: var(--secondary);
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
    transform: translateX(-3px);
}

.preview-text.vhs::after {
    color: var(--primary);
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
    transform: translateX(3px);
}

.preview-text.vhs.animated {
    animation: vhsGlitch 0.3s infinite;
}

@keyframes vhsGlitch {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(2px, -2px); }
    60% { transform: translate(-2px, -2px); }
    80% { transform: translate(2px, 2px); }
}

.preview-text.synthwave {
    font-family: 'Righteous', cursive;
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px var(--primary));
    text-shadow: none;
}

.preview-text.synthwave.animated {
    animation: synthwaveGlow 2s ease-in-out infinite;
}

@keyframes synthwaveGlow {
    0%, 100% { filter: drop-shadow(0 0 10px var(--primary)) drop-shadow(0 0 20px var(--secondary)); }
    50% { filter: drop-shadow(0 0 20px var(--primary)) drop-shadow(0 0 40px var(--secondary)); }
}

.preview-text.pixel {
    font-family: 'Press Start 2P', cursive;
    color: var(--primary);
    text-shadow:
        4px 0 0 var(--secondary),
        -4px 0 0 var(--secondary),
        0 4px 0 var(--secondary),
        0 -4px 0 var(--secondary);
    image-rendering: pixelated;
}

.preview-text.pixel.animated {
    animation: pixelFlicker 0.1s steps(2) infinite;
}

@keyframes pixelFlicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.9; }
}

.preview-text.disco {
    font-family: 'Bungee', cursive;
    background: linear-gradient(
        45deg,
        #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #4b0082, #9400d3, #ff0000
    );
    background-size: 400% 400%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.5));
}

.preview-text.disco.animated {
    animation: discoRainbow 2s linear infinite;
}

@keyframes discoRainbow {
    0% { background-position: 0% 50%; }
    100% { background-position: 400% 50%; }
}

.preview-text.vapor {
    font-family: 'Russo One', sans-serif;
    color: transparent;
    background: linear-gradient(135deg, #ff71ce 0%, #01cdfe 50%, #05ffa1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(3px 3px 0 rgba(255, 113, 206, 0.5));
}

.preview-text.vapor.animated {
    animation: vaporShift 4s ease-in-out infinite;
}

@keyframes vaporShift {
    0%, 100% { filter: drop-shadow(3px 3px 0 rgba(255, 113, 206, 0.5)) hue-rotate(0deg); }
    50% { filter: drop-shadow(3px 3px 0 rgba(1, 205, 254, 0.5)) hue-rotate(30deg); }
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

footer a:hover {
    color: var(--secondary);
    text-shadow: 0 0 10px var(--secondary);
}

/* Responsive Design */
@media (max-width: 900px) {
    main {
        grid-template-columns: 1fr;
    }

    .controls-panel {
        position: static;
        order: 2;
    }

    .preview-panel {
        order: 1;
        min-height: 300px;
    }

    .preview-container {
        min-height: 260px;
    }

    .preview-text {
        font-size: 48px;
    }
}

@media (max-width: 600px) {
    .app-container {
        padding: 15px;
    }

    header {
        padding: 20px 10px;
    }

    .controls-panel {
        padding: 20px;
    }

    .color-controls {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .preview-text {
        font-size: 36px;
        padding: 15px;
    }

    .download-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 400px) {
    .preview-text {
        font-size: 28px;
    }

    header h1 {
        font-size: 1.5rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--primary), var(--secondary));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}