/* ============================================
   KLYRA LABS - Premium Silver Minimalist Landing
   ============================================ */

/* -------------------- CSS Variables -------------------- */
:root {
    /* Dark Core */
    --bg-primary: #030305;
    --bg-secondary: #060609;
    --bg-tertiary: #0A0A0F;
    --bg-card: rgba(10, 10, 15, 0.85);

    /* Silver / Metallic Palette */
    --silver-bright: #E8E8E8;
    --silver-mid: #B8B8B8;
    --silver-dark: #888888;
    --silver-muted: #666666;

    /* Accent Color (navy blue) */
    --accent: #4A6FA5;
    --accent-soft: #6B8FC5;
    --accent-glow: rgba(74, 111, 165, 0.4);
    --accent-muted: rgba(74, 111, 165, 0.15);

    /* Danger (muted) */
    --danger: #A85454;
    --danger-muted: rgba(168, 84, 84, 0.2);

    /* Safe (muted) */
    --safe: #5A9A6E;
    --safe-muted: rgba(90, 154, 110, 0.2);

    /* Metallic Gradients */
    --gradient-metallic: linear-gradient(135deg, #F0F0F0 0%, #C8C8C8 25%, #E0E0E0 50%, #B0B0B0 75%, #D8D8D8 100%);
    --gradient-text: linear-gradient(135deg, #FFFFFF 0%, #E0E0E0 25%, #6B8FC5 50%, #E0E0E0 75%, #FFFFFF 100%);

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #909090;
    --text-muted: #606060;

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-light: rgba(255, 255, 255, 0.08);

    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --section-padding: 120px;
    --container-max: 1200px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* -------------------- Reset & Base -------------------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: rgba(200, 200, 200, 0.2);
    color: var(--text-primary);
}

/* -------------------- Overlays -------------------- */
.scan-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.05) 2px,
        rgba(0, 0, 0, 0.05) 4px
    );
    opacity: 0.4;
}

.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* -------------------- Container -------------------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* -------------------- Typography -------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    padding-bottom: 0.1em;
    line-height: 1.2;
    background-size: 200% 200%;
    animation: shimmer-text 8s ease-in-out infinite;
}

@keyframes shimmer-text {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.text-accent {
    color: var(--accent-soft);
}

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

/* Section Tags */
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--silver-mid);
    margin-bottom: 20px;
}

.tag-icon {
    width: 6px;
    height: 6px;
    background: var(--silver-mid);
    border-radius: 50%;
}

.tag-icon.safe {
    background: var(--safe);
    box-shadow: 0 0 10px var(--safe);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 24px;
    line-height: 1.1;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header .section-subtitle {
    margin: 0 auto;
}

/* -------------------- Buttons -------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-medium);
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-metallic);
    color: var(--bg-primary);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

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

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--silver-mid);
    background: rgba(255, 255, 255, 0.02);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1rem;
}

.btn-icon {
    transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* -------------------- Glass Card -------------------- */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(74, 111, 165, 0.08), transparent);
    transition: left 0.6s ease;
    pointer-events: none;
}

.glass-card:hover::before {
    left: 100%;
}

.glass-card:hover {
    border-color: rgba(74, 111, 165, 0.25);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(74, 111, 165, 0.08);
}

/* -------------------- Navigation -------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition-medium);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(5, 5, 8, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 32px;
    flex: 1;
}

.nav-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-img {
    height: 70px;
    width: auto;
    filter: brightness(1.1) drop-shadow(0 0 20px rgba(255,255,255,0.1));
    transition: all var(--transition-medium);
}

.navbar.scrolled .logo-img {
    height: 55px;
}

.logo-img:hover {
    filter: brightness(1.2) drop-shadow(0 0 30px rgba(255,255,255,0.2));
}

.nav-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex: 1;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--silver-mid);
    transition: width var(--transition-medium);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    position: relative;
    padding: 10px 24px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--bg-primary);
    background: var(--gradient-metallic);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 4px;
    transition: all var(--transition-medium);
    overflow: hidden;
}

.cta-pulse {
    position: absolute;
    top: 50%;
    left: 10px;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px var(--accent);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); }
    50% { opacity: 0.5; transform: translateY(-50%) scale(1.2); }
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-link {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.mobile-link:hover {
    color: var(--silver-mid);
}

.mobile-cta {
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--bg-primary);
    background: var(--gradient-metallic);
    text-decoration: none;
    border-radius: 4px;
}

/* -------------------- Hero Section -------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 140px 24px 120px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

#neural-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    animation: float 25s ease-in-out infinite;
}

.gradient-orb-1 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(74, 111, 165, 0.1) 0%, rgba(200, 200, 200, 0.04) 40%, transparent 70%);
    top: -250px;
    right: -150px;
}

.gradient-orb-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(150, 150, 150, 0.06) 0%, rgba(74, 111, 165, 0.04) 50%, transparent 70%);
    bottom: -200px;
    left: -150px;
    animation-delay: -12s;
}

/* Vignette overlay */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, transparent 40%, rgba(0, 0, 0, 0.4) 100%);
    pointer-events: none;
    z-index: 0;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 10px) scale(1.02); }
}

.grid-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(74, 111, 165, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 111, 165, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero-status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--safe);
    background: var(--safe-muted);
    border: 1px solid rgba(90, 154, 110, 0.3);
    border-radius: 100px;
    margin-bottom: 32px;
}

.status-indicator {
    width: 6px;
    height: 6px;
    background: var(--safe);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--safe);
    animation: pulse 2s ease-in-out infinite;
}

.hero-title {
    font-size: clamp(3.5rem, 10vw, 7rem);
    margin-bottom: 24px;
    line-height: 1.05;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Terminal Console */
.terminal-console {
    max-width: 480px;
    margin: 0 auto 40px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    overflow: hidden;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--silver-dark);
}

.terminal-dot:first-child { background: #5A5A5A; }
.terminal-dot:nth-child(2) { background: #6A6A6A; }
.terminal-dot:nth-child(3) { background: #7A7A7A; }

.terminal-title {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
}

.terminal-body {
    padding: 16px;
}

.terminal-line {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--silver-mid);
    display: flex;
    align-items: center;
}

.terminal-prompt {
    color: var(--silver-bright);
    margin-right: 10px;
}

.terminal-cursor {
    animation: blink 1s step-end infinite;
    margin-left: 2px;
}

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

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    z-index: 10;
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.3em;
    color: var(--text-muted);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--silver-mid), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 0.3; height: 40px; }
    50% { opacity: 0.8; height: 60px; }
}

/* -------------------- Section Base -------------------- */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

/* -------------------- Exposure Section -------------------- */
.exposure-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.exposure-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.exposure-meter {
    margin: 60px 0;
}

.meter-labels {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
}

.meter-label.left {
    color: var(--danger);
}

.meter-label.right {
    color: var(--safe);
}

.meter-track {
    position: relative;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 24px;
}

.meter-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 10;
}

.meter-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--danger), var(--silver-mid), var(--safe));
    border-radius: 4px;
    width: 15%;
    transition: width 0.3s ease;
}

.meter-glow {
    position: absolute;
    top: -8px;
    left: 15%;
    width: 16px;
    height: 24px;
    background: radial-gradient(circle, rgba(255,255,255,0.6) 0%, transparent 70%);
    transform: translateX(-50%);
    transition: left 0.3s ease;
}

.meter-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
}

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

.stat-box .stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.stat-box.danger .stat-value {
    color: var(--danger);
}

.stat-box .stat-label {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
}

.exposure-warning {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--danger-muted);
    border: 1px solid rgba(168, 84, 84, 0.3);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.warning-icon {
    color: var(--danger);
    font-size: 1rem;
}

/* -------------------- Threat Section -------------------- */
.threat-section {
    background: var(--bg-primary);
}

.threat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}

.threat-card {
    padding: 28px;
    position: relative;
    overflow: hidden;
}

.threat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--silver-dark);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.threat-card:hover::before {
    opacity: 1;
}

.threat-level {
    position: absolute;
    top: 14px;
    right: 14px;
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: 3px 8px;
    border-radius: 3px;
    background: var(--danger-muted);
    color: var(--danger);
    border: 1px solid rgba(168, 84, 84, 0.3);
}

.threat-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    margin-bottom: 16px;
}

.threat-icon svg {
    width: 20px;
    height: 20px;
    color: var(--silver-mid);
}

.threat-card h3 {
    font-size: 1.125rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.threat-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.threat-verdict {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 40px 0;
}

.verdict-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
}

.verdict-text {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

.verdict-text em {
    color: var(--silver-bright);
    font-style: normal;
}

/* -------------------- Solution Section -------------------- */
.solution-section {
    background: var(--bg-secondary);
}

.solution-header {
    text-align: center;
    margin-bottom: 80px;
}

.solution-header .section-subtitle {
    margin: 0 auto;
}

.solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

/* Fortress Visual */
.fortress-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.fortress-shield {
    position: relative;
    width: 260px;
    height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shield-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.ring-1 {
    width: 100%;
    height: 100%;
    animation: ring-rotate 30s linear infinite;
}

.ring-2 {
    width: 80%;
    height: 80%;
    animation: ring-rotate 25s linear infinite reverse;
}

.ring-3 {
    width: 60%;
    height: 60%;
    animation: ring-rotate 20s linear infinite;
}

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

.shield-core {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--silver-dark);
    border-radius: 50%;
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.05);
    animation: core-pulse 4s ease-in-out infinite;
}

@keyframes core-pulse {
    0%, 100% { box-shadow: 0 0 40px rgba(255, 255, 255, 0.05); }
    50% { box-shadow: 0 0 60px rgba(255, 255, 255, 0.1); }
}

.shield-core svg {
    width: 30px;
    height: 30px;
    color: var(--silver-mid);
}

.data-flow {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.data-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--silver-mid);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--silver-mid);
    top: 50%;
    left: 50%;
    animation: particle-orbit 5s linear infinite;
    animation-delay: var(--delay);
}

@keyframes particle-orbit {
    0% { transform: rotate(var(--angle)) translateX(90px) rotate(calc(var(--angle) * -1)); opacity: 0.8; }
    100% { transform: rotate(calc(var(--angle) + 360deg)) translateX(90px) rotate(calc((var(--angle) + 360deg) * -1)); opacity: 0.8; }
}

.fortress-label {
    margin-top: 32px;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.2em;
    color: var(--safe);
    padding: 6px 14px;
    background: var(--safe-muted);
    border: 1px solid rgba(90, 154, 110, 0.3);
    border-radius: 3px;
}

/* Solution Features */
.solution-features {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-marker {
    width: 8px;
    height: 8px;
    margin-top: 8px;
    background: var(--silver-mid);
    border-radius: 2px;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.feature-text p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* -------------------- Protocol Section -------------------- */
.protocol-section {
    background: var(--bg-primary);
}

.protocol-timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.timeline-line {
    position: absolute;
    top: 36px;
    left: 70px;
    right: 70px;
    height: 1px;
    background: var(--bg-tertiary);
}

.timeline-progress {
    height: 100%;
    width: 0;
    background: var(--silver-dark);
    transition: width 1s ease;
}

.protocol-step {
    position: relative;
    text-align: center;
}

.step-marker {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.step-number {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 50%;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
    transition: all var(--transition-medium);
}

.protocol-step:hover .step-number {
    border-color: var(--silver-mid);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.05);
}

.step-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 1px solid var(--silver-mid);
    border-radius: 50%;
    opacity: 0;
    animation: step-pulse 3s ease-out infinite;
}

@keyframes step-pulse {
    0% { transform: scale(1); opacity: 0.3; }
    100% { transform: scale(1.5); opacity: 0; }
}

.step-content {
    padding: 24px 16px;
    height: calc(100% - 92px);
    display: flex;
    flex-direction: column;
}

.step-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.step-icon svg {
    width: 20px;
    height: 20px;
    color: var(--silver-mid);
}

.step-content h3 {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    letter-spacing: 0.1em;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.step-content p {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
}

.step-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 14px;
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--text-muted);
}

.status-dot {
    width: 5px;
    height: 5px;
    background: var(--safe);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--safe);
}

/* -------------------- Sectors Section -------------------- */
.sectors-section {
    background: var(--bg-secondary);
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.sector-card {
    padding: 28px;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.sector-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--silver-mid);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.sector-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.sector-card:hover::after {
    opacity: 1;
}

.sector-card.sector-custom {
    border-style: dashed;
}

.sector-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    margin-bottom: 20px;
}

.sector-icon svg {
    width: 24px;
    height: 24px;
    color: var(--silver-mid);
}

.sector-card h3 {
    font-size: 1.125rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.sector-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.sector-clearance {
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    padding: 6px 10px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    display: inline-block;
}

/* -------------------- Comparison Section -------------------- */
.comparison-section {
    background: var(--bg-primary);
}

.comparison-table {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

.table-header {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-subtle);
}

.table-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    border-bottom: 1px solid var(--border-subtle);
}

.table-row:last-child {
    border-bottom: none;
}

.table-cell {
    padding: 16px 20px;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-cell {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

.danger-header {
    color: var(--danger);
}

.safe-header {
    color: var(--safe);
}

.row-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.cell-icon {
    font-weight: bold;
    font-size: 0.75rem;
}

.negative {
    color: var(--text-muted);
    background: rgba(168, 84, 84, 0.03);
}

.negative .cell-icon {
    color: var(--danger);
}

.positive {
    color: var(--text-secondary);
    background: rgba(90, 154, 110, 0.03);
}

.positive .cell-icon {
    color: var(--safe);
}

/* -------------------- CTA Section -------------------- */
.cta-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

#cta-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

.gradient-orb-cta-1 {
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(200, 200, 200, 0.06) 0%, transparent 70%);
    top: -350px;
    left: 50%;
    transform: translateX(-50%);
}

.gradient-orb-cta-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(150, 150, 150, 0.04) 0%, transparent 70%);
    bottom: -250px;
    right: -150px;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 16px;
    line-height: 1.1;
}

.cta-subtitle {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.cta-form {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 36px;
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    outline: none;
    transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--silver-mid);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23909090' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 90px;
}

.cta-form .btn {
    width: 100%;
    margin-top: 8px;
}

.form-note {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 14px;
}

.form-success {
    display: none;
    text-align: center;
    padding: 50px 36px;
}

.form-success.show {
    display: block;
}

.form-success .success-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--safe-muted);
    border: 1px solid var(--safe);
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(90, 154, 110, 0.2);
}

.form-success .success-icon svg {
    width: 32px;
    height: 32px;
    color: var(--safe);
}

.form-success h3 {
    font-size: 1.375rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.form-success p {
    color: var(--text-secondary);
}

/* -------------------- Footer -------------------- */
.footer {
    background: var(--bg-primary);
    padding: 70px 0 36px;
    border-top: 1px solid var(--border-subtle);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 14px;
    filter: brightness(1.1);
}

.footer-tagline {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.footer-description {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.footer-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--safe);
}

.footer-links h4 {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-links a {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 5px 0;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 30px;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-uk {
    display: flex;
    align-items: center;
    gap: 6px;
}

.uk-flag {
    font-size: 0.9rem;
}

/* -------------------- Animations -------------------- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation delays */
.fade-in:nth-child(1) { transition-delay: 0s; }
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.15s; }
.fade-in:nth-child(4) { transition-delay: 0.2s; }
.fade-in:nth-child(5) { transition-delay: 0.25s; }
.fade-in:nth-child(6) { transition-delay: 0.3s; }

/* -------------------- Responsive Design -------------------- */
@media (max-width: 1200px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
        gap: 36px;
    }

    .footer-grid > *:last-child {
        grid-column: 1 / -1;
    }
}

@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .nav-left,
    .nav-right {
        display: none;
    }

    .nav-logo {
        position: relative;
        left: auto;
        transform: none;
    }

    .nav-toggle {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }

    .solution-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .solution-visual {
        order: -1;
    }

    .protocol-timeline {
        grid-template-columns: repeat(2, 1fr);
    }

    .timeline-line {
        display: none;
    }

    .sectors-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .logo-img {
        height: 55px;
    }

    .navbar.scrolled .logo-img {
        height: 45px;
    }

    .hero {
        padding: 120px 20px 100px;
    }

    .hero-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .terminal-console {
        max-width: 100%;
    }

    .threat-grid {
        grid-template-columns: 1fr;
    }

    .protocol-timeline {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin: 0 auto;
    }

    .sectors-grid {
        grid-template-columns: 1fr;
    }

    .meter-stats {
        gap: 36px;
    }

    .table-header {
        grid-template-columns: 1fr 1fr;
    }

    .table-header .header-cell:first-child {
        display: none;
    }

    .table-row {
        grid-template-columns: 1fr 1fr;
    }

    .row-label {
        grid-column: 1 / -1;
        background: var(--bg-tertiary);
        font-weight: 500;
        font-size: 0.8125rem;
        text-align: center;
        padding: 12px 16px;
    }

    .table-cell.negative,
    .table-cell.positive {
        justify-content: center;
        text-align: center;
        flex-direction: column;
        padding: 14px 12px;
    }

    .table-cell .cell-icon {
        margin-bottom: 4px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .cta-form {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-brand {
        max-width: none;
    }

    .footer-status {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .logo-img {
        height: 48px;
    }

    .navbar.scrolled .logo-img {
        height: 40px;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .btn {
        padding: 14px 24px;
    }

    .btn-large {
        padding: 16px 28px;
    }

    .section-title {
        font-size: clamp(1.75rem, 7vw, 2.5rem);
    }

    .stat-box .stat-value {
        font-size: 1.875rem;
    }

    .fortress-shield {
        width: 200px;
        height: 200px;
    }

    .comparison-table .table-cell {
        padding: 12px 14px;
        font-size: 0.8125rem;
    }

    .scroll-indicator {
        bottom: 24px;
    }
}

/* -------------------- Mouse Trail -------------------- */
.mouse-trail {
    position: fixed;
    width: 8px;
    height: 8px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9997;
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
}

.mouse-trail.active {
    opacity: 0.7;
}

/* Trail particles */
.trail-particle {
    position: fixed;
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9996;
    opacity: 0;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 6px rgba(74, 111, 165, 0.3);
}

/* -------------------- Additional Hover Effects -------------------- */
.feature-marker {
    transition: all var(--transition-medium);
}

.feature-item:hover .feature-marker {
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

.sector-icon {
    transition: all var(--transition-medium);
}

.sector-card:hover .sector-icon {
    background: var(--accent-muted);
}

.sector-card:hover .sector-icon svg {
    color: var(--accent-soft);
}

.step-icon {
    transition: all var(--transition-medium);
}

.protocol-step:hover .step-icon {
    background: var(--accent-muted);
}

.protocol-step:hover .step-icon svg {
    color: var(--accent-soft);
}

.threat-icon {
    transition: all var(--transition-medium);
}

.threat-card:hover .threat-icon {
    background: var(--accent-muted);
}

.threat-card:hover .threat-icon svg {
    color: var(--accent-soft);
}

/* Shimmer on scroll line */
.scroll-line {
    background: linear-gradient(to bottom, var(--accent), var(--silver-mid), transparent);
}

/* Button accent glow on hover */
.btn-primary:hover {
    box-shadow: 0 10px 30px rgba(74, 111, 165, 0.2), 0 0 20px rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(74, 111, 165, 0.15);
}

/* -------------------- Print Styles -------------------- */
@media print {
    .scan-lines,
    .noise-overlay,
    .navbar,
    .mobile-menu,
    .gradient-orb,
    .scroll-indicator,
    .cta-form,
    #neural-canvas,
    #cta-canvas,
    .mouse-trail,
    .trail-particle {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .gradient-text {
        -webkit-text-fill-color: black;
        background: none;
    }
}