/* 
 * T7 OFFENSIVE CYBERNETICS // Core Design System Stylesheet
 * Custom CSS utilizing vanilla HSL variable tokens & glassmorphism blurs.
 */

:root {
    /* Color Tokens */
    --bg-darker: #060608;
    --bg-base: #0B0B0F;
    --bg-panel: rgba(18, 18, 26, 0.65);
    --bg-panel-hover: rgba(26, 26, 38, 0.8);
    
    --primary-purple: #7000FF;
    --primary-purple-glow: rgba(112, 0, 255, 0.35);
    --accent-violet: #B800FF;
    --accent-cyan: #00F0FF;
    --accent-cyan-glow: rgba(0, 240, 255, 0.25);
    --accent-green: #00FF66;
    --accent-red: #FF3B30;
    
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    --text-dim: #4B5563;
    
    --border-glow: rgba(112, 0, 255, 0.2);
    --border-light: rgba(255, 255, 255, 0.06);
    --border-active: rgba(0, 240, 255, 0.4);
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-cyber: 'Orbitron', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset & Base Setup */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.cyber-theme {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(112, 0, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 240, 255, 0.04) 0%, transparent 40%);
    background-attachment: fixed;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
    background: var(--primary-purple);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Futuristic Scanline Effect */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        rgba(18, 16, 16, 0) 50%, 
        rgba(0, 0, 0, 0.2) 50%
    );
    background-size: 100% 4px;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.4;
}

/* Utility Layout Classes */
.font-mono { font-family: var(--font-mono); }
.text-green { color: var(--accent-green); }
.text-purple { color: var(--accent-violet); }
.text-cyan { color: var(--accent-cyan); }
.text-dim { color: var(--text-secondary); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.cursor-pointer { cursor: pointer; }
.hidden { display: none !important; }
.padding-lg { padding: 3rem !important; }

/* Custom Purple Gradient Text */
.purple-gradient {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-violet) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Interactive Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(6, 6, 8, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    height: 70px;
    transition: var(--transition-smooth);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 2rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.t7-logo {
    height: 38px;
    width: auto;
    filter: drop-shadow(0 0 8px var(--primary-purple-glow));
    transition: var(--transition-smooth);
}

.t7-logo:hover {
    transform: scale(1.05) rotate(2deg);
}

.brand-text {
    font-family: var(--font-cyber);
    font-weight: 900;
    font-size: 1.3rem;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-item {
    font-family: var(--font-cyber);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 1px;
    transition: var(--transition-smooth);
    padding: 0.5rem 0.75rem;
    border: 1px solid transparent;
}

.nav-item:hover, .nav-item.active {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px var(--accent-cyan-glow);
    border-bottom: 1px solid var(--accent-cyan);
}

.nav-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    background: rgba(0, 255, 102, 0.05);
    border: 1px solid rgba(0, 255, 102, 0.15);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
}

.status-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
}

.pulsing {
    animation: pulse 2s infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.4; }
    100% { opacity: 1; }
}

/* Global Content Sections Styling */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 2rem 4rem 2rem;
}

.section {
    padding: 4rem 0;
    margin-bottom: 2rem;
}

.section-header {
    margin-bottom: 3rem;
}

.section-title {
    font-family: var(--font-cyber);
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 600px;
}

/* 1. Hero Section Layout */
.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.cyber-badge {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--accent-violet);
    letter-spacing: 3px;
    background: rgba(184, 0, 255, 0.08);
    border: 1px solid rgba(184, 0, 255, 0.25);
    padding: 0.4rem 0.8rem;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-family: var(--font-cyber);
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
    max-width: 620px;
}

.hero-metrics {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.metric-card {
    border-left: 2px solid var(--primary-purple);
    padding-left: 1rem;
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.metric-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-top: 0.2rem;
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-cyber);
    font-size: 0.85rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 1px;
    padding: 0.9rem 1.8rem;
    border-radius: 4px;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-purple);
    color: var(--text-primary);
    border: 1px solid var(--primary-purple);
    box-shadow: 0 4px 15px var(--primary-purple-glow);
}

.btn-primary:hover {
    background-color: var(--accent-violet);
    border-color: var(--accent-violet);
    box-shadow: 0 4px 20px rgba(184, 0, 255, 0.4);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--text-secondary);
}

.btn-outline:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 12px var(--accent-cyan-glow);
    transform: translateY(-2px);
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
}

/* 2. Tactical Operator Avatar Frame */
.hero-operator-frame {
    position: relative;
    border: 1px solid var(--border-glow);
    background: var(--bg-panel);
    padding: 1rem;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.operator-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    filter: brightness(0.9) contrast(1.1);
    transition: var(--transition-smooth);
}

.hero-operator-frame:hover .operator-img {
    filter: brightness(1) contrast(1.15);
    transform: scale(1.02);
}

/* HUD Overlay Elements */
.hud-corners::before, .hud-corners::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-cyan);
    z-index: 10;
    pointer-events: none;
}
.hud-corners::before { top: 1.5rem; left: 1.5rem; border-right: none; border-bottom: none; }
.hud-corners::after { bottom: 1.5rem; right: 1.5rem; border-left: none; border-top: none; }

.hud-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
    z-index: 5;
    pointer-events: none;
}

.operator-overlay {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    background: rgba(6, 6, 8, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-light);
    padding: 0.8rem 1.2rem;
    z-index: 10;
}

.operator-name {
    font-size: 0.75rem;
    color: var(--accent-cyan);
    font-weight: 700;
    letter-spacing: 1px;
}

.operator-role {
    font-size: 0.65rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

/* 3. Capabilities Section Grid */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.capability-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 2.5rem 2rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.capability-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-purple);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-smooth);
}

.capability-card:hover {
    transform: translateY(-5px);
    background: var(--bg-panel-hover);
    border-color: var(--border-glow);
    box-shadow: 0 10px 25px rgba(112, 0, 255, 0.15);
}

.capability-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    font-size: 2.2rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 0 5px var(--accent-cyan-glow));
}

.capability-card:hover .card-icon {
    color: var(--accent-violet);
    filter: drop-shadow(0 0 8px rgba(184, 0, 255, 0.3));
}

.card-title {
    font-family: var(--font-cyber);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.card-footer {
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    border-top: 1px solid var(--border-light);
    padding-top: 0.8rem;
}

/* 4. Live Telemetry Console Shell */
.terminal-container {
    background: #020204;
    border: 1px solid rgba(112, 0, 255, 0.25);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.6);
}

.terminal-header {
    background: #0B0B0F;
    border-bottom: 1px solid var(--border-light);
    padding: 0.8rem 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.terminal-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot.close { background: var(--accent-red); }
.dot.minimize { background: #FFCC00; }
.dot.expand { background: var(--accent-green); }

.terminal-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.terminal-connection {
    font-size: 0.7rem;
    font-weight: 700;
}

.terminal-body {
    padding: 1.5rem;
    height: 320px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    font-size: 0.8rem;
    line-height: 1.5;
}

.log-line {
    word-break: break-all;
}

/* 5. Secure Payloads distribution */
.payloads-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.upload-panel, .database-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 2rem;
}

.panel-title {
    font-family: var(--font-cyber);
    font-size: 1.1rem;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.panel-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

/* Drag & Drop Area */
.drop-zone {
    border: 2px dashed rgba(112, 0, 255, 0.35);
    background: rgba(6, 6, 8, 0.6);
    border-radius: 6px;
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
}

.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.04);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
}

.drop-zone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    padding: 2rem;
}

.drop-icon {
    font-size: 3rem;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.drop-zone:hover .drop-icon {
    color: var(--accent-cyan);
    transform: translateY(-5px);
}

.drop-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.drop-limit {
    font-size: 0.65rem;
    color: var(--text-dim);
}

.file-selector-input {
    display: none;
}

/* Uploading Progress */
.upload-progress-container {
    background: #060608;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 1rem;
    margin-top: 1.5rem;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
}

.progress-filename {
    color: var(--text-primary);
    max-width: 70%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.progress-percentage {
    color: var(--accent-cyan);
    font-weight: 700;
}

.progress-bar-bg {
    background: #111116;
    height: 4px;
    width: 100%;
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    background: linear-gradient(90deg, var(--primary-purple), var(--accent-cyan));
    height: 100%;
    width: 0%;
    transition: width 0.1s ease;
}

/* Live Database Table Panel */
.db-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1.5rem;
}

.search-box {
    position: relative;
    max-width: 250px;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    font-size: 0.85rem;
}

.search-input {
    background: rgba(6, 6, 8, 0.8);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 0.5rem 1rem 0.5rem 2.2rem;
    border-radius: 4px;
    font-size: 0.85rem;
    width: 100%;
    outline: none;
    transition: var(--transition-smooth);
}

.search-input:focus {
    border-color: var(--primary-purple);
    box-shadow: 0 0 8px var(--primary-purple-glow);
}

/* Category Filter Chips */
.file-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.filter-chip {
    background: #111116;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    font-size: 0.7rem;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-cyber);
    font-weight: 700;
    letter-spacing: 0.5px;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.filter-chip:hover, .filter-chip.active {
    background: var(--primary-purple);
    border-color: var(--primary-purple);
    color: var(--text-primary);
    box-shadow: 0 0 10px var(--primary-purple-glow);
}

/* Database Table Styles */
.table-scroll-container {
    overflow-x: auto;
    border-radius: 4px;
    border: 1px solid var(--border-light);
}

.payloads-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.85rem;
}

.payloads-table th, .payloads-table td {
    padding: 1rem 1.2rem;
    vertical-align: middle;
}

.payloads-table th {
    background: rgba(6, 6, 8, 0.9);
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-light);
}

.payloads-table tbody tr {
    border-bottom: 1px solid var(--border-light);
    background: rgba(6, 6, 8, 0.3);
    transition: var(--transition-smooth);
}

.payloads-table tbody tr:hover {
    background: rgba(26, 26, 38, 0.5);
}

.payload-name-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 700;
}

.file-icon {
    font-size: 1.1rem;
}
.file-icon.document { color: var(--accent-cyan); }
.file-icon.image { color: var(--accent-violet); }
.file-icon.video { color: #FFCC00; }
.file-icon.audio { color: #00FF66; }
.file-icon.other { color: var(--text-secondary); }

/* File Type Category Badge */
.category-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-weight: 700;
    text-transform: uppercase;
}

.category-badge.document { background: rgba(0, 240, 255, 0.08); border: 1px solid rgba(0, 240, 255, 0.2); color: var(--accent-cyan); }
.category-badge.image { background: rgba(184, 0, 255, 0.08); border: 1px solid rgba(184, 0, 255, 0.2); color: var(--accent-violet); }
.category-badge.video { background: rgba(255, 204, 0, 0.08); border: 1px solid rgba(255, 204, 0, 0.2); color: #FFCC00; }
.category-badge.audio { background: rgba(0, 255, 102, 0.08); border: 1px solid rgba(0, 255, 102, 0.2); color: #00FF66; }
.category-badge.other { background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.08); color: var(--text-secondary); }

.action-btn-group {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

.btn-action {
    background: #111116;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.btn-action:hover.preview {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 8px var(--accent-cyan-glow);
}

.btn-action:hover.download {
    color: var(--accent-green);
    border-color: var(--accent-green);
    box-shadow: 0 0 8px rgba(0, 255, 102, 0.25);
}

.btn-action:hover.delete {
    color: var(--accent-red);
    border-color: var(--accent-red);
    box-shadow: 0 0 8px rgba(255, 59, 48, 0.25);
}

/* 6. Secure Contact/Signal Inbound Card */
.contact-card-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 3rem;
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

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

.form-group label {
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--accent-cyan);
    font-weight: 700;
}

.form-input {
    background: rgba(6, 6, 8, 0.9);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 0.9rem 1.2rem;
    border-radius: 4px;
    font-size: 0.9rem;
    outline: none;
    font-family: var(--font-sans);
    transition: var(--transition-smooth);
}

.form-input:focus {
    border-color: var(--primary-purple);
    box-shadow: 0 0 10px var(--primary-purple-glow);
}

select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.text-area {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    resize: none;
}

/* 7. Interactive Glassmorphic Preview Modal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    background: rgba(6, 6, 8, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    transition: var(--transition-smooth);
}

.modal-content {
    background: var(--bg-base);
    border: 1px solid var(--border-active);
    border-radius: 8px;
    max-width: 900px;
    width: 100%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 240, 255, 0.15);
}

.modal-header {
    background: #0B0B0F;
    border-bottom: 1px solid var(--border-light);
    padding: 1.2rem 1.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 0.9rem;
    color: var(--accent-cyan);
    font-weight: 700;
    letter-spacing: 1px;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    color: var(--accent-red);
}

.modal-body {
    padding: 2rem;
    overflow-y: auto;
    color: var(--text-primary);
}

/* Preview Rendering Formats */
.preview-markdown {
    font-family: var(--font-sans);
    line-height: 1.7;
}

.preview-markdown h1, .preview-markdown h2, .preview-markdown h3 {
    font-family: var(--font-cyber);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
}

.preview-markdown p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.preview-markdown ul, .preview-markdown ol {
    margin-left: 2rem;
    margin-bottom: 1.2rem;
    color: var(--text-secondary);
}

.preview-code {
    font-family: var(--font-mono);
    background: #060608;
    padding: 1.5rem;
    border-radius: 4px;
    border: 1px solid var(--border-light);
    white-space: pre-wrap;
    font-size: 0.8rem;
    color: #A3E635; /* Terminal green code coloring */
}

.preview-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 4px;
    border: 1px solid var(--border-light);
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

/* 8. Global Dynamic Footer */
.footer {
    border-top: 1px solid var(--border-light);
    background: #060608;
    padding: 2.5rem 2rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.footer-brand {
    font-family: var(--font-cyber);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.footer-domain {
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
}

.footer-domain:hover {
    text-shadow: 0 0 8px var(--accent-cyan-glow);
}

.footer-copy {
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 1px;
}

/* Responsive Grid Media Queries */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-operator-frame {
        max-width: 500px;
        width: 100%;
        margin: 0 auto;
        height: 420px;
    }
    
    .payloads-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }
    .nav-links {
        display: none; /* In production: a burger menu. Out-of-box: hide on tiny screens */
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-metrics {
        flex-direction: column;
        gap: 1rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-card-container {
        padding: 1.5rem;
    }
    
    .db-header {
        flex-direction: column;
        align-items: stretch;
    }
    .search-box {
        max-width: 100%;
    }
}