:root {
    --color-bg: #050505;
    --color-cyan: #00F2FF;
    --color-magenta: #FF00E5;
    --color-text: #FFFFFF;
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Orbitron', sans-serif;

    --glass-bg: rgba(5, 5, 5, 0.4);
    /* Increased opacity for better readability */
    --glass-blur: 12px;
    /* Reduced from 40px to reduce LAG */
    --glass-border: 1px solid rgba(0, 242, 255, 0.2);
}

/* --- Loading Screen --- */
#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #050505;
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.loader-dna {
    width: 60px;
    height: 60px;
    position: relative;
    margin: 0 auto 2rem;
}

.loader-strand {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
    border-top-color: var(--color-cyan);
    border-radius: 50%;
    animation: spin 1.5s linear infinite;
}

.loader-strand:nth-child(2) {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    border-top-color: var(--color-magenta);
    animation-direction: reverse;
    animation-duration: 1s;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loader-text {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--color-cyan);
    letter-spacing: 0.3rem;
    margin-bottom: 1.5rem;
}

.loader-progress {
    width: 200px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

.loader-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-magenta));
    animation: loading 2s ease-in-out forwards;
}

@keyframes loading {
    0% {
        width: 0%;
    }

    50% {
        width: 70%;
    }

    100% {
        width: 100%;
    }
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-primary);
    overflow-x: hidden;
}

body.custom-cursor-active {
    cursor: none;
}

/* --- Utilities --- */
/* --- Utilities --- */
.glass-panel {
    background: var(--glass-bg);
    /* Optimized: Removed heavy backdrop-filter for performance */
    border: var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
    background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1MDAiIGhlaWdodD0iNTAwIj48ZmlsdGVyIGlkPSJnoiPjxmZVR1cmJ1bGVuY2UgdHlwZT0iZnJhY3RhbE5vaXNlIiBiYXNlRnJlcXVlbmN5PSIwLjY1IiBudW1PY3RhdmVzPSIzIiBzdGl0Y2hUaWxlcz0ic3RpdGNoIi8+PC9maWx0ZXI+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsdGVyPSJ1cmwoI2cpIiBvcGFjaXR5PSIwLjAzIi8+PC9zdmc+');
    opacity: 0.1;
}

@keyframes noise {
    0% {
        background-position: 0 0;
    }

    10% {
        background-position: -5% -10%;
    }

    20% {
        background-position: -15% 5%;
    }

    30% {
        background-position: 7% -25%;
    }

    40% {
        background-position: 20% 25%;
    }

    50% {
        background-position: -25% 10%;
    }

    60% {
        background-position: 15% 5%;
    }

    70% {
        background-position: 0% 15%;
    }

    80% {
        background-position: 25% 35%;
    }

    90% {
        background-position: -10% 10%;
    }
}

/* Custom Cursor Container */
#cursor {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    pointer-events: none;
    mix-blend-mode: difference;
    /* Ensure visibility on light/dark */
}

.cursor-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background-color: var(--color-cyan);
    border-radius: 50%;
}

.cursor-outline {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 1px solid rgba(0, 242, 255, 0.5);
    border-radius: 50%;
    transition: width 0.2s, height 0.2s, background-color 0.2s;
}

/* Scroll Indicator - Force Bottom */
.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    /* Push up slightly from very edge */
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    letter-spacing: 0.2rem;
    opacity: 0.7;
    animation: bounce 2s infinite;
    z-index: 15;
    /* Above hero content */
    cursor: pointer;
    pointer-events: auto;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* --- Cursor --- */
.cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 20px;
    height: 20px;
    background-color: var(--color-cyan);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    /* transform handled by JS for lerp */
    transition: width 0.3s, height 0.3s, background-color 0.3s, opacity 0.3s;
    mix-blend-mode: difference;
    opacity: 0;
    will-change: transform;
}

body.custom-cursor-active .cursor {
    opacity: 1;
}

.cursor.hovered {
    width: 60px;
    height: 60px;
    background-color: transparent;
    border: 2px solid var(--color-cyan);
}

/* --- Sections --- */
.section {
    min-height: 100vh;
    width: 100%;
    position: relative;
    padding: 4rem 2rem;
    z-index: 10;
    /* Ensure sections are above background elements */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Section A: Hero */
.hero-section {
    position: relative;
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
    /* Center vertically and horizontally */
    overflow: hidden;
    z-index: 20;
    /* Hero needs to be high */
}

.canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    /* Behind everything */
}

.canvas-container iframe {
    width: 125%;
    /* Aggressive scale to ensure watermark is gone */
    height: 125%;
    border: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    /* Center it back */
}

.interaction-blocker {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Let Spline be interactive - pointer-events: none allows clicks to pass through */
    pointer-events: none;
    background: transparent;
    z-index: 5;
}

.hero-content {
    text-align: center;
    z-index: 10;
    /* Removed mix-blend-mode for 100% text opacity */
    pointer-events: none;
    /* Let clicks pass through to Spline */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    /* Ensure it takes full height to center content */
    width: 100%;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 5rem;
    font-weight: 700;
    letter-spacing: 0.5rem;
    line-height: 1.1;
    text-transform: uppercase;
    /* Improved visibility with stronger text shadow */
    text-shadow: 0 0 30px rgba(0, 242, 255, 0.8), 0 0 60px rgba(0, 242, 255, 0.4), 0 0 100px rgba(0, 242, 255, 0.2);
    background: linear-gradient(to bottom, #fff, #ddd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Sci-Fi Grid Background */
.scifi-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background-image:
        linear-gradient(rgba(0, 242, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 242, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    transform: perspective(500px) rotateX(60deg) translateY(-100px) translateZ(-200px);
    animation: gridMove 20s linear infinite;
    pointer-events: none;
    /* CRITICAL: Prevent blocking clicks */
    will-change: transform;
    /* Optimize */
}

@keyframes gridMove {
    0% {
        transform: perspective(500px) rotateX(60deg) translateY(0) translateZ(-200px);
    }

    100% {
        transform: perspective(500px) rotateX(60deg) translateY(50px) translateZ(-200px);
    }
}

/* Floating Particles (CSS Only for performance) */
#particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    /* CRITICAL: Prevent blocking clicks */
    z-index: 1;
    /* Below content but above grid */
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--color-cyan);
    border-radius: 50%;
    opacity: 0;
    animation: floatUp 10s infinite linear;
    pointer-events: none;
}

@keyframes floatUp {
    0% {
        transform: translateY(100vh);
        opacity: 0;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        transform: translateY(-10vh);
        opacity: 0;
    }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 5rem;
    font-weight: 700;
    letter-spacing: 0.5rem;
    line-height: 1.1;
    text-transform: uppercase;
    color: #fff;
    /* Enhanced visibility */
    text-shadow: 0 0 30px rgba(0, 242, 255, 0.8), 0 0 60px rgba(0, 242, 255, 0.4);
    position: relative;
}

/* Interactive Neural Network Canvas */
#neural-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

/* Connection Success Edge Glow */
.connection-flash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    /* Edge glow using box-shadow inset */
    box-shadow: inset 0 0 100px 20px rgba(0, 242, 255, 0),
        inset 0 0 200px 40px rgba(0, 242, 255, 0);
    z-index: 9998;
    pointer-events: none;
}

.connection-flash.active {
    animation: edgeGlow 0.6s ease-out forwards;
}

@keyframes edgeGlow {
    0% {
        box-shadow: inset 0 0 100px 20px rgba(0, 242, 255, 0),
            inset 0 0 200px 40px rgba(0, 242, 255, 0);
    }

    15% {
        box-shadow: inset 0 0 100px 30px rgba(0, 242, 255, 0.6),
            inset 0 0 200px 60px rgba(0, 242, 255, 0.3);
    }

    100% {
        box-shadow: inset 0 0 100px 20px rgba(0, 242, 255, 0),
            inset 0 0 200px 40px rgba(0, 242, 255, 0);
    }
}


/* Section B: Blueprint */
.section-blueprint {
    /* Slightly darken bg to ensure text readbility against 3D model */
    background: linear-gradient(to bottom, transparent, rgba(5, 5, 5, 0.8));
}

.content-wrapper {
    max-width: 800px;
    width: 100%;
    text-align: center;
    transform: translateY(50px);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-cyan);
    margin-bottom: 2rem;
    letter-spacing: 0.1rem;
}

.hero-sub {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    line-height: 1.5;
}

.dna-stats {
    display: flex;
    justify-content: space-around;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-item .label {
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 0.5rem;
}

.stat-item .value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-magenta);
}

/* Section C: Sandbox */
.section-sandbox {
    background: rgba(5, 5, 5, 0.4);
    /* Backdrop */
}

.sandbox-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    width: 100%;
    max-width: 1200px;
    min-height: 60vh;
}

/* --- FIXED WIREFRAME LAYOUT --- */
.human-wireframe {
    position: relative;
    border: 1px dashed rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    /* VERTICAL STACK */
    align-items: center;
    justify-content: center;
    /* Center content vertically */
    padding: 2rem;
    gap: 2rem;
    /* Space between wireframe and text */
}

.wireframe-placeholder {
    width: 250px;
    height: 400px;
    background: radial-gradient(circle at center, rgba(0, 242, 255, 0.2) 0%, transparent 70%);
    border: 2px solid var(--color-cyan);
    border-radius: 100px;
    transition: all 0.5s ease;
    flex-shrink: 0;
    /* Ensure canvas stays inside rules */
    overflow: hidden;
    position: relative;
}

#liquid-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    mix-blend-mode: screen;
    /* Optional: blend nicely with the gradient */
}

/* Moved from absolute to static flow to prevent overlap */
.status-overlay {
    position: relative;
    bottom: auto;
    left: auto;
    font-family: var(--font-heading);
    color: var(--color-text);
    background: rgba(0, 0, 0, 0.8);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* --- CONTROLS --- */
.controls-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
    /* Glass panel already applied via class */
}

.controls-panel h3 {
    margin-bottom: 2rem;
    font-family: var(--font-heading);
    color: var(--color-cyan);
}

.control-group {
    margin-bottom: 2rem;
}

.control-group label {
    display: block;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    letter-spacing: 0.05rem;
}

.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-text);
    cursor: pointer;
    box-shadow: 0 0 10px var(--color-cyan);
    transition: 0.2s;
}

.slider::-webkit-slider-thumb:hover {
    background: var(--color-cyan);
    transform: scale(1.2);
}


/* Section F: Partners */
.section-partners {
    background: linear-gradient(to bottom, rgba(5, 5, 5, 0.4), rgba(5, 5, 5, 0.8));
    min-height: 80vh;
    /* Increased vertical space */
    padding: 6rem 2rem;
}

.partners-wrapper {
    max-width: 1200px;
    /* Wider for 4 columns */
    width: 100%;
    text-align: center;
}

.partners-grid {
    display: flex;
    /* Switch to Flex for safer wrapping */
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    width: 100%;
    margin-top: 4rem;
}

.partner-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    width: 250px;
    /* Fixed width to ensure grid look */
    flex-grow: 0;
}

.partner-card:hover {
    background: rgba(0, 242, 255, 0.1);
    border-color: var(--color-cyan);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 242, 255, 0.1);
}

.partner-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 0 10px var(--color-cyan));
}

.partner-card h3 {
    font-family: var(--font-heading);
    color: #fff;
    font-size: 1.2rem;
    letter-spacing: 1px;
}

.partner-loc {
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--color-cyan);
    opacity: 0.7;
}


/* Section E: Neural Uplink */
.section-uplink {
    background: rgba(5, 5, 5, 0.6);
}

.terminal-window {
    width: 100%;
    max-width: 600px;
    padding: 0;
    /* Header separates content */
    overflow: hidden;
    border: 1px solid #333;
}

.terminal-header {
    background: rgba(255, 255, 255, 0.05);
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.red {
    background: #ff5f56;
}

.yellow {
    background: #ffbd2e;
}

.green {
    background: #27c93f;
}

.terminal-title {
    font-family: monospace;
    font-size: 0.8rem;
    margin-left: 10px;
    opacity: 0.7;
}

.terminal-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-line {
    display: flex;
    flex-direction: column;
    /* Stack vertical */
    align-items: center;
    /* Center horizontally */
    gap: 0.5rem;
    font-family: monospace;
    font-size: 1rem;
    color: var(--color-cyan);
    width: 100%;
}

.prompt {
    opacity: 0.8;
    text-align: center;
    width: 100%;
}

.glitch-input {
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(0, 242, 255, 0.3);
    color: #fff;
    font-family: monospace;
    font-size: 1rem;
    padding: 5px;
    width: 100%;
    outline: none;
    transition: 0.3s;
    text-align: center;
    /* Center text input */
}

.glitch-input:focus {
    border-bottom: 1px solid var(--color-cyan);
    text-shadow: 0 0 5px var(--color-cyan);
}

.terminal-submit {
    background: transparent;
    color: var(--color-magenta);
    border: 1px solid var(--color-magenta);
    padding: 10px;
    font-family: monospace;
    cursor: pointer;
    margin-top: 1rem;
    transition: 0.3s;
    text-transform: uppercase;
}

.terminal-submit:hover {
    background: var(--color-magenta);
    color: #000;
    box-shadow: 0 0 20px var(--color-magenta);
}

.transmission-status {
    height: 1rem;
    font-family: monospace;
    font-size: 0.8rem;
    color: #fff;
    text-align: center;
}


/* Section D: Footer */
.section-footer {
    min-height: 50vh;
    background: linear-gradient(to top, #000 0%, transparent 100%);
    justify-content: flex-end;
    padding-bottom: 6rem;
    z-index: 10;
}

.footer-content {
    text-align: center;
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(to bottom, #fff, #555);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sync-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.pulse-button {
    background: rgba(0, 242, 255, 0.05);
    color: var(--color-cyan);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    padding: 1.5rem 4rem;
    border: 1px solid var(--color-cyan);
    border-radius: 4px;
    /* More techy than 50px */
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 0 20px rgba(0, 242, 255, 0.1);
    text-transform: uppercase;
    letter-spacing: 4px;
    clip-path: polygon(10% 0, 100% 0, 100% 80%, 90% 100%, 0 100%, 0 20%);
    /* Sci-fi Shape */
}

.pulse-button:hover {
    background: rgba(0, 242, 255, 0.2);
    box-shadow: 0 0 50px rgba(0, 242, 255, 0.4);
    letter-spacing: 6px;
    /* Expand text */
    text-shadow: 0 0 8px var(--color-cyan);
}

.pulse-button:disabled {
    opacity: 0.3;
    pointer-events: none;
    box-shadow: none;
    border-color: #555;
    color: #555;
    cursor: not-allowed;
}

.btn-scan-line {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
    /* Blue/Cyan Scan */
    transform: skewX(-20deg);
    transition: 0s;
}

/* Run scan on Hover OR when explicitly 'scanning' class is added */
.pulse-button:hover .btn-scan-line,
.pulse-button.scanning .btn-scan-line {
    animation: scan 1s linear infinite;
}

@keyframes scan {
    0% {
        left: -100%;
    }

    100% {
        left: 200%;
    }
}

.sync-status {
    font-family: monospace;
    font-size: 0.8rem;
    color: #555;
    letter-spacing: 0.1rem;
    height: 1rem;
    /* Prevent layout jump */
}

.footer-data {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    margin-top: 2rem;
}

.data-row {
    display: flex;
    justify-content: space-between;
    font-family: monospace;
    color: #444;
    font-size: 0.8rem;
}

.copyright {
    margin-top: 2rem;
    font-family: monospace;
    font-size: 0.7rem;
    color: #333;
    text-align: center;
}

@media (max-width: 768px) {
    .sandbox-container {
        grid-template-columns: 1fr;
        height: auto;
    }

    .hero-title {
        font-size: 3rem;
    }
}