@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Rajdhani:wght@500;700&display=swap');

:root {
    --bg-color: #050505;
    --card-bg: rgba(10, 20, 15, 0.85);
    /* Darker glass */
    --neon-green: #25D366;
    /* WhatsApp/Matrix Green */
    --neon-purple: #9d4edd;
    /* Braip Purple */
    --text-primary: #e0e0e0;
    --error-red: #ff3333;

    --font-tech: 'Share Tech Mono', monospace;
    --font-heading: 'Rajdhani', sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    background-color: #000;
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
}

body {
    margin: 0;
    padding: 0;
    color: var(--text-primary);
    font-family: var(--font-tech);
    min-height: 100vh;
    /* Changed from height to min-height */
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    /* Prevent horizontal scroll only */
    position: relative;

    /* Complex Gradient Background */
    background:
        radial-gradient(circle at 15% 50%, rgba(140, 82, 255, 0.15), transparent 25%),
        /* Purple Glow Left */
        radial-gradient(circle at 85% 30%, rgba(37, 211, 102, 0.15), transparent 25%),
        /* Green Glow Right */
        linear-gradient(180deg, #000 0%, #031105 100%);
    /* Deep Dark Green Base */
}

/* Digital Rain / Matrix Effect (Simulated via CSS) */
body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(0deg, transparent 24%, rgba(0, 255, 65, .05) 25%, rgba(0, 255, 65, .05) 26%, transparent 27%, transparent 74%, rgba(157, 78, 221, .05) 75%, rgba(157, 78, 221, .05) 76%, transparent 77%, transparent), linear-gradient(90deg, transparent 24%, rgba(0, 0, 0, .2) 25%, rgba(0, 0, 0, .2) 26%, transparent 27%, transparent 74%, transparent 75%, transparent 76%, transparent 77%, transparent);
    background-size: 50px 50px;
    z-index: -2;
    animation: techScroll 20s linear infinite;
}

/* Floating Particles (Green & Purple) */
body::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(var(--neon-green) 1px, transparent 1px),
        radial-gradient(var(--neon-purple) 1px, transparent 1px);
    background-size: 60px 60px, 90px 90px;
    background-position: 0 0, 30px 30px;
    opacity: 0.3;
    z-index: -1;
    animation: particles 10s linear infinite;
}

@keyframes techScroll {
    from {
        background-position: 0 0;
    }

    to {
        background-position: 0 500px;
    }
}

@keyframes particles {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(-100px);
    }
}

.logo-container {
    margin-bottom: 2rem;
    animation: floatLogo 4s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(0, 255, 65, 0.3));
}

@keyframes floatLogo {

    0%,
    100% {
        transform: translateY(0);
    }

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

.logo {
    max-width: 220px;
    display: block;
}

.card {
    background: rgba(5, 10, 5, 0.9);
    border: 1px solid #1a1a1a;
    border-radius: 8px;
    padding: 2.5rem;
    width: 90%;
    max-width: 480px;
    position: relative;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    text-align: center;
}

/* Green/Purple Top/Bottom Glow Mix */
.card::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-green), var(--neon-purple), transparent);
    box-shadow: 0 0 15px var(--neon-green);
}

.card::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-purple), var(--neon-green), transparent);
    box-shadow: 0 0 15px var(--neon-purple);
}

h1 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #fff;
    margin: 0 0 2rem 0;
    letter-spacing: 2px;
    text-shadow: 0 0 5px var(--neon-green), 0 0 10px var(--neon-purple);
}

.upload-zone {
    border: 2px dashed #444;
    border-radius: 4px;
    padding: 2.5rem 1rem;
    margin-bottom: 1.5rem;
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    /* Kept flex fix */
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--neon-green);
    background: rgba(0, 255, 65, 0.05);
    box-shadow: inset 0 0 20px rgba(0, 255, 65, 0.1);
}

.upload-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.7;
    filter: grayscale(100%);
    transition: all 0.3s;
}

.upload-zone:hover .upload-icon {
    filter: grayscale(0%) drop-shadow(0 0 5px var(--neon-green));
    opacity: 1;
}

.upload-text-main {
    display: block;
    font-size: 1.1rem;
    color: #fff;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.upload-text-sub {
    display: block;
    font-size: 0.8rem;
    color: #666;
}

.file-name-display {
    color: var(--neon-green);
    font-weight: bold;
    margin-top: 10px;
    display: block;
    word-break: break-all;
}

input[type="file"] {
    display: none;
}

/* Button */
.btn-cyber {
    background: transparent;
    color: var(--neon-green);
    border: 1px solid var(--neon-green);
    padding: 1rem;
    width: 100%;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
    border-radius: 2px;
}

.btn-cyber:hover:not(:disabled) {
    background: var(--neon-green);
    color: #000;
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.6);
    transform: translateY(-1px);
}

.btn-cyber:disabled {
    border-color: #333;
    color: #555;
    cursor: not-allowed;
    box-shadow: none;
}

/* Status Area */
.status-box {
    margin-top: 1.5rem;
    border: 1px dashed transparent;
    padding: 10px;
    font-size: 0.85rem;
    display: none;
    /* hidden by default */
}

.status-box.visible {
    display: block;
}

.status-box.error {
    border-color: var(--error-red);
    color: var(--error-red);
    background: rgba(255, 50, 50, 0.05);
}

.status-box.success {
    border-color: var(--neon-green);
    color: var(--neon-green);
    background: rgba(0, 255, 65, 0.05);
}

.status-box.loading {
    color: var(--neon-green);
    border-color: #333;
}

/* Footer */
footer {
    position: fixed;
    bottom: 10px;
    font-size: 0.65rem;
    color: #333;
    text-transform: uppercase;
    letter-spacing: 1px;
}