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

:root {
    --primary-green: #00ff41;
    --dark-bg: #0a0a0a;
    --terminal-bg: #000000;
    --border-color: rgba(0, 255, 65, 0.3);
    --text-color: #ffffff;
    --shadow-glow: 0 0 20px rgba(0, 255, 65, 0.3);
}

body {
    font-family: 'Share Tech Mono', monospace;
    background-color: var(--dark-bg);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.15;
}

.matrix-bg canvas {
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    background: rgba(0, 0, 0, 0.9);
    border-bottom: 2px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-family: 'Orbitron', sans-serif;
}

.logo-icon {
    font-size: 1.8rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary-green);
    letter-spacing: 2px;
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}

.version {
    font-size: 0.8rem;
    color: #888;
    background: rgba(0, 255, 65, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: bold;
    letter-spacing: 1px;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
}

.nav-link:hover {
    color: var(--primary-green);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: var(--shadow-glow);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

/* Alert */
.alert {
    padding: 1rem 1.5rem;
    margin: 1rem 0;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: slideIn 0.3s ease;
}

.alert-error {
    background: rgba(255, 0, 0, 0.1);
    border: 2px solid rgba(255, 0, 0, 0.5);
    color: #ff8888;
}

.alert-icon {
    font-size: 1.5rem;
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Terminal Window */
.terminal-window {
    background: var(--terminal-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-glow);
    margin: 2rem 0;
}

.terminal-header {
    background: rgba(0, 255, 65, 0.1);
    padding: 0.8rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
    margin-left: auto;
    color: var(--primary-green);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.terminal-body {
    padding: 2rem;
}

.ascii-art {
    color: var(--primary-green);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 5px rgba(0, 255, 65, 0.5);
}

.highlight {
    color: #fff;
    background: rgba(0, 255, 65, 0.2);
    padding: 0 0.3rem;
}

.terminal-text {
    color: var(--primary-green);
    margin-top: 1rem;
}

.prompt {
    color: #888;
}

.blink {
    animation: blink 1s infinite;
}

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

/* Hero Section */
.hero {
    margin: 3rem 0;
}

/* Upload Section */
.upload-section {
    background: rgba(0, 255, 65, 0.03);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin: 3rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
    font-family: 'Orbitron', sans-serif;
}

.section-subtitle {
    color: #888;
    font-size: 1.1rem;
}

/* File Upload */
.file-upload-wrapper {
    margin: 2rem 0;
}

.file-input {
    display: none;
}

.file-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 3rem 2rem;
    border: 3px dashed var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    background: rgba(0, 255, 65, 0.02);
}

.file-label:hover {
    border-color: var(--primary-green);
    background: rgba(0, 255, 65, 0.05);
    box-shadow: var(--shadow-glow);
}

.file-icon {
    font-size: 3rem;
}

.file-text {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--primary-green);
    letter-spacing: 1px;
}

.file-subtext {
    color: #888;
    font-size: 0.9rem;
}

.file-name {
    display: none;
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    text-align: center;
    color: var(--primary-green);
}

/* Settings Grid */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-label {
    color: var(--primary-green);
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.label-icon {
    font-size: 1.2rem;
}

.setting-select,
.setting-input {
    padding: 0.8rem;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-family: 'Share Tech Mono', monospace;
    font-size: 1rem;
    transition: all 0.3s;
}

.setting-select:focus,
.setting-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: var(--shadow-glow);
}

.setting-select option {
    background: var(--terminal-bg);
    color: var(--text-color);
}

/* Checkbox Group */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    padding: 1rem;
    background: rgba(0, 255, 65, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.3s;
}

.checkbox-label:hover {
    background: rgba(0, 255, 65, 0.05);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--primary-green);
    border-color: var(--primary-green);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    color: var(--terminal-bg);
    font-weight: bold;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: bold;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-green);
    color: var(--terminal-bg);
    border: 2px solid var(--primary-green);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
}

.btn-primary:hover {
    background: transparent;
    color: var(--primary-green);
    box-shadow: 0 0 30px rgba(0, 255, 65, 0.6);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

.btn-secondary:hover {
    background: rgba(0, 255, 65, 0.1);
    box-shadow: var(--shadow-glow);
}

.btn-icon {
    font-size: 1.3rem;
}

.upload-form {
    display: flex;
    flex-direction: column;
}

.upload-form .btn-primary {
    align-self: center;
    margin-top: 1rem;
}

/* Info Cards */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.info-card {
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-green);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.info-card h3 {
    color: var(--primary-green);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-family: 'Orbitron', sans-serif;
}

.info-card p {
    color: #888;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.9);
    border-top: 2px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}

.footer p {
    color: #888;
    margin: 0.5rem 0;
}

.footer-warning {
    color: var(--primary-green);
    font-weight: bold;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .settings-grid {
        grid-template-columns: 1fr;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .file-label {
        padding: 2rem 1rem;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

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