@import url('https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@400;700&family=Poppins:wght@300;500;700&family=Space+Grotesk:wght@300;400;500;700&display=swap');

:root {
    --primary: #00d4b1;
    --primary-dark: #00a88d;
    --secondary: #ff6b6b;
    --dark: #0f172a;
    --darker: #060c1b;
    --light: #f8fafc;
    --medium: #334155;
    --accent: #7c3aed;
    --gradient-start: #00d4b1;
    --gradient-end: #7c3aed;
    --glow-color: rgba(0, 212, 177, 0.5);
    --card-bg: rgba(15, 23, 42, 0.7);
    --border-color: rgba(51, 65, 85, 0.5);
}

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

body {
    font-family: 'Space Grotesk', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 212, 177, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.app-container {
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    position: relative;
}

.title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    letter-spacing: -1px;
    line-height: 1.1;
}

.title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    border-radius: 2px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--light);
    opacity: 0.8;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 300;
    letter-spacing: 0.5px;
    max-width: 600px;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    width: 100%;
    max-width: 600px;
    position: relative;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.control-btn {
    background-color: transparent;
    color: var(--light);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
    flex: 1;
    min-width: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.control-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: all 0.5s ease;
}

.control-btn:hover {
    background-color: rgba(0, 212, 177, 0.1);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 177, 0.2);
}

.control-btn:hover::before {
    left: 100%;
}

.control-btn.active {
    background-color: var(--primary);
    color: var(--darker);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--glow-color);
}

.control-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.drop-zone {
    width: 100%;
    height: 450px;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: auto;
    transition: all 0.3s ease;
    background: var(--card-bg);
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
}

.drop-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 212, 177, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
    pointer-events: none;
}

.drop-zone.dragging {
    border-color: var(--primary);
    background-color: rgba(0, 212, 177, 0.05);
    box-shadow: 0 0 30px var(--glow-color);
}

.drop-zone.zoomed {
    overflow: auto;
    cursor: move;
}

.drop-zone.zoomed::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.drop-zone.zoomed::-webkit-scrollbar-track {
    background: var(--dark);
}

.drop-zone.zoomed::-webkit-scrollbar-thumb {
    background: var(--medium);
    border-radius: 4px;
}

.drop-zone.zoomed::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

.drop-zone.zoomed .ascii-output {
    transform-origin: top left;
    margin: var(--ascii-margin-y) var(--ascii-margin-x);
    font-size: var(--ascii-font-size);
    line-height: var(--ascii-line-height);
}

.drop-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    color: var(--light);
    opacity: 0.8;
    text-align: center;
}

.drop-text span:first-child {
    font-size: 1.5rem;
    font-weight: 500;
    animation: float 3s infinite ease-in-out;
    letter-spacing: 1px;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

.small-text {
    font-size: 0.9rem;
    opacity: 0.7;
    letter-spacing: 1px;
}

.ascii-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
    padding: 10px;
    position: relative;
}

.ascii-output {
    margin: 0;
    padding: 0;
    white-space: pre;
    font-family: 'Roboto Mono', monospace;
    line-height: 1;
    color: var(--primary);
    overflow: visible;
    font-size: 0.5em;
    transform-origin: center;
    max-height: 100%;
    max-width: 100%;
    text-shadow: 0 0 5px rgba(0, 212, 177, 0.3);
}

.ascii-output::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.ascii-output::-webkit-scrollbar-track {
    background: var(--dark);
}

.ascii-output::-webkit-scrollbar-thumb {
    background: var(--medium);
    border-radius: 4px;
}

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

.footer {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--light);
    opacity: 0.7;
    text-align: center;
    position: relative;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    width: fit-content;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
}

.footer a:hover {
    color: var(--accent);
    text-decoration: none;
}

.footer a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.footer a:hover::after {
    width: 100%;
}

@media (max-width: 768px) {
    .app-container {
        padding: 1rem;
        gap: 1.5rem;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
        padding: 0.75rem;
    }
    
    .drop-zone {
        height: 350px;
        padding: 15px;
    }
    
    .ascii-output {
        font-size: 0.4em;
    }
    
    .footer {
        font-size: 0.8rem;
        padding: 0.75rem;
    }
}

@media (prefers-reduced-motion) {
    .drop-text span:first-child {
        animation: none;
    }
    
    .title {
        animation: none;
    }
}