/* ==========================================================================
   CODEGUARD AI — Professional Cybersecurity SaaS Styling
   Theme: Dark Charcoal, Clean Typography, Controlled Accents
   ================================================================---------- */

:root {
    --bg-main: #0a0b0e;
    --bg-card: #12141c;
    --bg-card-hover: #181c27;
    --bg-subtle: #1f2430;
    --border-color: #2a2e3d;
    --border-subtle: #1e222d;
    
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-dimmed: #6b7280;

    --accent-green: #10b981;
    --accent-green-glow: rgba(16, 185, 129, 0.15);
    --accent-amber: #f59e0b;
    --accent-red: #ef4444;
    --accent-blue: #3b82f6;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
}

.font-mono {
    font-family: var(--font-mono);
}

.hidden {
    display: none !important;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ==========================================================================
   Typography & Utilities
   ================================================================---------- */
.text-gradient {
    background: linear-gradient(135deg, #ffffff 0%, #9ca3af 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-success { color: var(--accent-green); }
.text-warning { color: var(--accent-amber); }
.text-danger { color: var(--accent-red); }
.text-info { color: var(--accent-blue); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ==========================================================================
   Buttons & Badges
   ================================================================---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--text-main);
    color: var(--bg-main);
    border-color: var(--text-main);
}
.btn-primary:hover {
    background-color: #e5e7eb;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-subtle);
    color: var(--text-main);
    border-color: var(--border-color);
}
.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-subtle {
    background-color: transparent;
    color: var(--text-muted);
    border-color: var(--border-color);
}
.btn-subtle:hover {
    color: var(--text-main);
    background-color: var(--bg-subtle);
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 1rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
    border-radius: 4px;
    text-transform: uppercase;
}

.badge.critical, .severity-badge.critical { background: rgba(239, 68, 68, 0.15); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.3); }
.badge.high, .severity-badge.high { background: rgba(249, 115, 22, 0.15); color: #fdba74; border: 1px solid rgba(249, 115, 22, 0.3); }
.badge.medium, .severity-badge.medium { background: rgba(245, 158, 11, 0.15); color: #fde047; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge.low, .severity-badge.low { background: rgba(59, 130, 246, 0.15); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.3); }

.cwe-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-subtle);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

/* ==========================================================================
   Navigation Bar
   ================================================================---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    background-color: rgba(10, 11, 14, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-icon {
    width: 38px;
    height: 38px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-green);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.5px;
    color: var(--text-main);
}

.brand-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-main);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    font-size: 1.5rem;
}

/* ==========================================================================
   Hero Section
   ================================================================---------- */
.hero {
    padding: 140px 0 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background: radial-gradient(circle at 70% 30%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-badge {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    margin-bottom: 1.5rem;
    padding: 0.35rem 0.85rem;
    font-size: 0.75rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; box-shadow: 0 0 12px var(--accent-green); }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-trust {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.tech-stack-tags {
    display: flex;
    gap: 0.5rem;
}

.tag {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

/* Terminal Mock */
.hero-terminal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.terminal-header {
    background: var(--bg-subtle);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.terminal-title {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.status-live {
    font-size: 0.75rem;
    color: var(--accent-green);
    font-family: var(--font-mono);
}

.terminal-body {
    padding: 1.25rem;
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.t-comment { color: var(--text-dimmed); }
.t-prompt { color: var(--accent-green); }
.t-string { color: #60a5fa; }
.t-success { color: var(--accent-green); }

.terminal-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin: 0.5rem 0;
}

.metric-box {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metric-label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.metric-value {
    font-size: 1.25rem;
    font-weight: 700;
}

.terminal-alert {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    font-size: 0.8rem;
    color: #fca5a5;
}

.terminal-command-line {
    color: var(--text-muted);
}

.cursor-blink {
    animation: blink 1s infinite;
}

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

/* ==========================================================================
   Scanner Section
   ================================================================---------- */
.scanner-section {
    padding: 100px 0;
    background: var(--bg-main);
}

.section-header {
    margin-bottom: 2.5rem;
}

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

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-green);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: block;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

.sample-loader-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
}

.loader-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.loader-label svg {
    color: var(--accent-amber);
    width: 16px;
    height: 16px;
}

.sample-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-sample {
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.btn-sample:hover {
    border-color: var(--accent-green);
    background: var(--accent-green-glow);
    color: var(--accent-green);
}

.scanner-workspace {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.editor-toolbar {
    background: var(--bg-subtle);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.toolbar-left, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.language-select {
    background: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.4rem 2rem 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    outline: none;
}

.file-info {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.editor-container {
    display: flex;
    position: relative;
    background: #0d0f14;
    min-height: 350px;
}

.line-numbers {
    padding: 1.25rem 0.75rem;
    background: #090a0e;
    color: var(--text-dimmed);
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
    user-select: none;
    border-right: 1px solid var(--border-color);
    min-width: 45px;
}

.code-textarea {
    flex: 1;
    background: transparent;
    color: var(--text-main);
    border: none;
    padding: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
    outline: none;
    white-space: pre;
    overflow-x: auto;
}

.editor-footer {
    background: var(--bg-subtle);
    padding: 0.65rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.editor-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.ai-layer-tag {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--accent-green);
    font-family: var(--font-mono);
}

/* Scan Progress Modal/Overlay */
.scan-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 11, 14, 0.85);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scan-progress-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.scanner-radar {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--accent-green-glow);
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.radar-icon {
    color: var(--accent-green);
    width: 32px;
    height: 32px;
}

.radar-beam {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: conic-gradient(from 0deg at 50% 50%, rgba(16, 185, 129, 0.4) 0deg, transparent 60deg);
    animation: radarSpin 1.5s linear infinite;
}

@keyframes radarSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.scan-progress-box h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.scan-progress-box p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.progress-bar-track {
    width: 100%;
    height: 6px;
    background: var(--bg-subtle);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    width: 0%;
    height: 100%;
    background: var(--accent-green);
    transition: width 0.3s ease;
}

/* ==========================================================================
   Dashboard Section
   ================================================================---------- */
.dashboard-section {
    padding: 100px 0;
    background: var(--bg-main);
    border-top: 1px solid var(--border-color);
}

.dashboard-header-flex {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.dashboard-actions {
    display: flex;
    gap: 1rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.dashboard-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
}

.card-header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.card-header-flex h3, .summary-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.score-display-wrapper {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.radial-score-container {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radial-ring {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.ring-bg {
    fill: none;
    stroke: var(--bg-subtle);
    stroke-width: 10;
}

.ring-fill {
    fill: none;
    stroke: var(--accent-red);
    stroke-width: 10;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease-in-out;
}

.score-number-group {
    position: absolute;
    display: flex;
    align-items: baseline;
    justify-content: center;
}

.score-number {
    font-size: 2.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.score-max {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.score-meta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.score-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.score-delta {
    font-size: 0.8rem;
}

/* Summary Card */
.vuln-counters {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin: 1.25rem 0;
}

.counter-box {
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    padding: 0.85rem 0.5rem;
    border-radius: var(--radius-sm);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.counter-box.critical { border-color: rgba(239, 68, 68, 0.4); }
.counter-box.high { border-color: rgba(249, 115, 22, 0.4); }
.counter-box.medium { border-color: rgba(245, 158, 11, 0.4); }
.counter-box.low { border-color: rgba(59, 130, 246, 0.4); }

.c-num {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
}
.counter-box.critical .c-num { color: #fca5a5; }
.counter-box.high .c-num { color: #fdba74; }
.counter-box.medium .c-num { color: #fde047; }
.counter-box.low .c-num { color: #93c5fd; }

.c-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.scan-meta-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.8rem;
    background: var(--bg-main);
    padding: 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.meta-row {
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
}
.meta-row strong {
    color: var(--text-main);
}

/* Vulnerabilities Grid */
.subsection-header {
    margin-bottom: 1.5rem;
}
.subsection-header h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}
.subsection-header p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.vulnerabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.25rem;
    margin-bottom: 3rem;
}

.vuln-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
    transition: var(--transition);
}

.vuln-card:hover {
    border-color: var(--text-muted);
    transform: translateY(-2px);
}

.vuln-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
}

.vuln-title-group h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-top: 0.35rem;
}

.vuln-risk-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.vuln-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
}

.affected-line {
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* AI Fix Section */
.ai-fix-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    margin-bottom: 3rem;
}

.score-improvement-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    padding: 1.25rem 2rem;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
}

.improvement-side {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.imp-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.imp-score {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.improvement-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    color: var(--accent-green);
    font-size: 0.75rem;
}

.code-diff-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.diff-column {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.diff-header {
    background: var(--bg-subtle);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
}

.diff-code {
    padding: 1.25rem;
    font-size: 0.85rem;
    overflow-x: auto;
    flex: 1;
    line-height: 1.5;
}

.vulnerable-col .diff-code { color: #fca5a5; }
.secure-col .diff-code { color: #86efac; }

.diff-footer-action {
    background: var(--bg-subtle);
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.ai-explanation-card {
    background: var(--bg-main);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin-top: 1.5rem;
}

.ai-exp-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}
.ai-exp-header h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

.ai-explanation-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ==========================================================================
   How It Works Section
   ================================================================---------- */
.how-it-works-section {
    padding: 100px 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    gap: 1rem;
    align-items: center;
}

.step-card {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    position: relative;
    height: 100%;
}

.step-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dimmed);
}

.step-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-green);
}

.step-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.step-connector {
    width: 24px;
    height: 2px;
    background: var(--border-color);
}

/* ==========================================================================
   Supported Vulnerabilities Grid
   ================================================================---------- */
.supported-vulns-section {
    padding: 100px 0;
    background: var(--bg-main);
}

.vulns-showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.vuln-showcase-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1.75rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: var(--transition);
}

.vuln-showcase-card:hover {
    border-color: var(--text-muted);
}

.v-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}
.v-icon.red { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }
.v-icon.orange { background: rgba(249, 115, 22, 0.15); color: #f97316; }
.v-icon.yellow { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }

.vuln-showcase-card h4 {
    font-size: 1rem;
    font-weight: 600;
}

.vuln-showcase-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ==========================================================================
   Why CodeGuard AI Section
   ================================================================---------- */
.why-section {
    padding: 100px 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.why-card {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.why-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-green-glow);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-green);
}

.why-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.why-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ==========================================================================
   About Section
   ================================================================---------- */
.about-section {
    padding: 100px 0;
    background: var(--bg-main);
    border-top: 1px solid var(--border-color);
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 3rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.about-badge {
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    padding: 0.35rem 0.85rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    border-radius: 4px;
    color: var(--accent-green);
    letter-spacing: 1px;
}

.about-card h2 {
    font-size: 2rem;
    font-weight: 700;
}

.about-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
    max-width: 650px;
}

.about-tagline {
    font-size: 0.95rem;
    color: var(--text-main);
}

.about-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.about-links {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

/* ==========================================================================
   Footer
   ================================================================---------- */
.footer {
    background: var(--bg-main);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
}

.footer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 0.35rem;
    color: var(--text-main);
}
.footer-brand svg {
    color: var(--accent-green);
}

.footer-left p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-right {
    text-align: right;
}

.footer-disclaimer, .footer-copy {
    font-size: 0.75rem;
    color: var(--text-dimmed);
}

/* ==========================================================================
   Modals
   ================================================================---------- */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 11, 14, 0.85);
    backdrop-filter: blur(8px);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 650px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.report-modal-container {
    max-width: 750px;
}

.modal-header {
    background: var(--bg-subtle);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.modal-title-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.modal-title-group h3 {
    font-size: 1.15rem;
    font-weight: 600;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-close-btn:hover {
    color: var(--text-main);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.modal-footer {
    background: var(--bg-subtle);
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Modal Content Styling */
.modal-section-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-text {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.attack-chain-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: var(--radius-sm);
    gap: 0.5rem;
    margin: 0.5rem 0;
    flex-wrap: wrap;
}

.chain-step {
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    text-align: center;
    flex: 1;
}

.chain-arrow {
    color: var(--accent-red);
    font-weight: bold;
}

/* Report Printable Styling */
.report-header-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--radius-sm);
}

.report-score-box {
    text-align: right;
}
.rs-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}
.rs-val {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.report-summary-box, .report-table-wrapper, .report-recommendation-box {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--radius-sm);
}
.report-summary-box h5, .report-table-wrapper h5, .report-recommendation-box h5 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    color: var(--accent-green);
}
.report-summary-box p, .report-recommendation-box p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}
.report-table th, .report-table td {
    padding: 0.65rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}
.report-table th {
    color: var(--text-muted);
    background: var(--bg-subtle);
}

/* ==========================================================================
   Responsive Design
   ================================================================---------- */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .code-diff-container {
        grid-template-columns: 1fr;
    }
    .why-grid {
        grid-template-columns: 1fr;
    }
    .steps-grid {
        grid-template-columns: 1fr;
    }
    .step-connector {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-card);
        flex-direction: column;
        padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
    }
    .nav-links.active {
        display: flex;
    }
    .mobile-menu-btn {
        display: block;
    }
    .hero-title {
        font-size: 2.25rem;
    }
    .section-title {
        font-size: 1.75rem;
    }
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
    .footer-right {
        text-align: center;
    }
}