@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Share+Tech+Mono&display=swap');

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

:root {
    --void-black: #000000;
    --deep-purple: #1a0a2e;
    --cyber-purple: #7b2cbf;
    --neon-pink: #ff006e;
    --neon-cyan: #00f5ff;
    --neon-green: #39ff14;
    --electric-blue: #0066ff;
    --warning-orange: #ff6600;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --glow-strong: 0 0 20px;
    --glow-medium: 0 0 10px;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--void-black);
    color: var(--text-primary);
    font-family: 'Share Tech Mono', monospace;
}

/* Scanlines overlay */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.1) 0px,
        rgba(0, 0, 0, 0.1) 1px,
        transparent 1px,
        transparent 2px
    );
}

/* Noise texture */
.noise {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Cyber grid background */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(123, 44, 191, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(123, 44, 191, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 1;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(50px); }
}

/* Header */
.main-header {
    position: fixed;
    top: 20px;
    left: 0;
    width: 100%;
    text-align: center;
    z-index: 100;
}

.glitch {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    color: var(--text-primary);
    text-transform: uppercase;
    position: relative;
    animation: glitchText 3s infinite;
}

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

.glitch::before {
    color: var(--neon-cyan);
    animation: glitchBefore 2s infinite;
    clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
    transform: translate(-2px);
}

.glitch::after {
    color: var(--neon-pink);
    animation: glitchAfter 2s infinite;
    clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
    transform: translate(2px);
}

@keyframes glitchBefore {
    0%, 100% { transform: translate(-2px); }
    25% { transform: translate(2px); }
    50% { transform: translate(-1px); }
    75% { transform: translate(1px); }
}

@keyframes glitchAfter {
    0%, 100% { transform: translate(2px); }
    25% { transform: translate(-2px); }
    50% { transform: translate(1px); }
    75% { transform: translate(-1px); }
}

@keyframes glitchText {
    0%, 90%, 100% { opacity: 1; }
    91% { opacity: 0.8; }
    92% { opacity: 1; }
    93% { opacity: 0.9; }
}

.tagline {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 10px;
    letter-spacing: 3px;
}

.blink {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Input container */
.input-container {
    position: fixed;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    width: 90%;
    max-width: 700px;
}

.input-wrapper {
    display: flex;
    align-items: center;
    background: rgba(26, 10, 46, 0.8);
    border: 1px solid var(--cyber-purple);
    border-radius: 0;
    padding: 5px;
    position: relative;
    clip-path: polygon(0 0, calc(100% - 15px) 0, 100% 15px, 100% 100%, 15px 100%, 0 calc(100% - 15px));
}

.input-wrapper::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, var(--neon-cyan), var(--cyber-purple), var(--neon-pink));
    z-index: -1;
    clip-path: polygon(0 0, calc(100% - 15px) 0, 100% 15px, 100% 100%, 15px 100%, 0 calc(100% - 15px));
    opacity: 0.5;
}

.input-prefix {
    color: var(--neon-cyan);
    padding: 0 10px;
    font-size: 0.9rem;
    white-space: nowrap;
}

#urlInput {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: 'Share Tech Mono', monospace;
    font-size: 1rem;
    padding: 15px 10px;
    outline: none;
}

#urlInput::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.cyber-btn {
    background: linear-gradient(135deg, var(--cyber-purple), var(--neon-pink));
    border: none;
    color: var(--text-primary);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 15px 25px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.cyber-btn:hover {
    box-shadow: var(--glow-strong) var(--neon-pink);
    transform: scale(1.02);
}

.cyber-btn:active {
    transform: scale(0.98);
}

.cyber-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

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

.input-line {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--cyber-purple), var(--neon-pink), transparent);
    margin-top: 5px;
    animation: linePulse 2s ease-in-out infinite;
}

@keyframes linePulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* Error container */
.error-container {
    position: fixed;
    top: 190px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 0, 50, 0.1);
    border: 1px solid var(--neon-pink);
    padding: 10px 20px;
    display: none;
    align-items: center;
    gap: 10px;
    z-index: 100;
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.error-container.active {
    display: flex;
}

.error-icon {
    width: 25px;
    height: 25px;
    border: 2px solid var(--neon-pink);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--neon-pink);
    animation: errorPulse 0.5s ease-in-out infinite;
}

@keyframes errorPulse {
    0%, 100% { box-shadow: 0 0 5px var(--neon-pink); }
    50% { box-shadow: 0 0 15px var(--neon-pink); }
}

#errorText {
    color: var(--neon-pink);
    font-size: 0.9rem;
}

/* Stats bar */
.stats-bar {
    position: fixed;
    top: 200px;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    gap: 30px;
    z-index: 100;
    background: rgba(0, 0, 0, 0.5);
    padding: 15px 30px;
    border: 1px solid rgba(123, 44, 191, 0.3);
}

.stats-bar.active {
    display: flex;
}

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

.stat-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 2px;
    margin-bottom: 5px;
}

.stat-value {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--neon-cyan);
    text-shadow: var(--glow-medium) var(--neon-cyan);
}

/* Visualization container */
.visualization-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    display: none;
}

.visualization-container.active {
    display: block;
}

#blackholeCanvas {
    width: 100%;
    height: 100%;
}

/* Center info */
.center-info {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 50;
    background: rgba(0, 0, 0, 0.8);
    padding: 15px 30px;
    border: 1px solid var(--cyber-purple);
    max-width: 90%;
    display: none;
}

.center-info.active {
    display: block;
}

.center-url {
    font-size: 0.9rem;
    color: var(--neon-cyan);
    word-break: break-all;
    margin-bottom: 5px;
    max-width: 500px;
}

.center-depth {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.center-depth span {
    color: var(--neon-pink);
    font-weight: bold;
}

/* Tooltip */
.hover-tooltip {
    position: fixed;
    background: rgba(0, 0, 0, 0.95);
    border: 1px solid var(--neon-cyan);
    padding: 10px 15px;
    font-size: 0.8rem;
    color: var(--neon-cyan);
    pointer-events: none;
    z-index: 1000;
    max-width: 400px;
    word-break: break-all;
    display: none;
    box-shadow: var(--glow-medium) var(--neon-cyan);
}

.hover-tooltip.active {
    display: block;
}

/* Side panel */
.side-panel {
    position: fixed;
    right: -400px;
    top: 0;
    width: 400px;
    height: 100%;
    background: rgba(10, 5, 20, 0.98);
    border-left: 1px solid var(--cyber-purple);
    z-index: 200;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.side-panel.open {
    right: 0;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--cyber-purple);
    background: rgba(123, 44, 191, 0.1);
}

.panel-header h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    color: var(--neon-cyan);
    letter-spacing: 3px;
}

.close-btn {
    background: none;
    border: 1px solid var(--neon-pink);
    color: var(--neon-pink);
    width: 30px;
    height: 30px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: var(--neon-pink);
    color: var(--void-black);
}

.panel-info {
    padding: 15px 20px;
    border-bottom: 1px solid rgba(123, 44, 191, 0.3);
}

.panel-url {
    font-size: 0.85rem;
    color: var(--neon-cyan);
    word-break: break-all;
    margin-bottom: 10px;
}

.panel-stats {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.panel-stats span {
    color: var(--neon-pink);
    font-weight: bold;
}

.panel-links {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.panel-links::-webkit-scrollbar {
    width: 5px;
}

.panel-links::-webkit-scrollbar-track {
    background: var(--void-black);
}

.panel-links::-webkit-scrollbar-thumb {
    background: var(--cyber-purple);
}

.link-item {
    padding: 12px 15px;
    margin-bottom: 5px;
    background: rgba(123, 44, 191, 0.1);
    border-left: 3px solid var(--cyber-purple);
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    word-break: break-all;
}

.link-item:hover {
    background: rgba(123, 44, 191, 0.3);
    border-left-color: var(--neon-cyan);
    color: var(--text-primary);
    transform: translateX(5px);
}

.link-item.visited {
    border-left-color: var(--neon-green);
    opacity: 0.7;
}

.link-item.visited::after {
    content: ' [VISITED]';
    color: var(--neon-green);
    font-size: 0.7rem;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 500;
}

.loading-overlay.active {
    display: flex;
}

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

.loading-ring {
    width: 100px;
    height: 100px;
    position: relative;
    margin: 0 auto 30px;
}

.ring-segment {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-radius: 50%;
}

.ring-segment:nth-child(1) {
    border-top-color: var(--neon-cyan);
    animation: spin 1s linear infinite;
}

.ring-segment:nth-child(2) {
    border-right-color: var(--cyber-purple);
    animation: spin 1.5s linear infinite reverse;
}

.ring-segment:nth-child(3) {
    border-bottom-color: var(--neon-pink);
    animation: spin 2s linear infinite;
}

.ring-segment:nth-child(4) {
    border-left-color: var(--neon-green);
    animation: spin 2.5s linear infinite reverse;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    margin-bottom: 20px;
}

.loading-main {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    color: var(--neon-cyan);
    letter-spacing: 5px;
    margin-bottom: 10px;
    animation: loadingPulse 1s ease-in-out infinite;
}

@keyframes loadingPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading-url {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.loading-bar {
    width: 200px;
    height: 3px;
    background: rgba(123, 44, 191, 0.3);
    margin: 0 auto;
    overflow: hidden;
}

.loading-progress {
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
    animation: loadingBar 1s ease-in-out infinite;
}

@keyframes loadingBar {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(400%); }
}

/* Instructions */
.instructions {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--text-secondary);
    z-index: 100;
    background: rgba(0, 0, 0, 0.5);
    padding: 10px 20px;
    border: 1px solid rgba(123, 44, 191, 0.3);
    display: none;
}

.instructions.active {
    display: block;
}

.key {
    color: var(--neon-cyan);
    padding: 2px 6px;
    border: 1px solid var(--neon-cyan);
    font-size: 0.7rem;
    margin: 0 3px;
}

/* Responsive */
@media (max-width: 768px) {
    .glitch {
        font-size: 1.8rem;
    }

    .input-wrapper {
        flex-direction: column;
        gap: 10px;
    }

    .input-prefix {
        display: none;
    }

    #urlInput {
        width: 100%;
        text-align: center;
    }

    .cyber-btn {
        width: 100%;
    }

    .stats-bar {
        gap: 15px;
        padding: 10px 15px;
    }

    .stat-value {
        font-size: 1.2rem;
    }

    .side-panel {
        width: 100%;
        right: -100%;
    }
}