/* ============================================================
   10x Technologies — site styles
   Built on the design system tokens (design-system/styles.css).
   Pages must link design-system/styles.css BEFORE this file and
   set data-theme="dark" (or "light") on <html>.
   ============================================================ */

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

/* Legacy variable bridge — older pages and inline styles reference
   these names; they now resolve to design-system tokens. */
:root {
    --primary-color: var(--accent);
    --primary-dark: var(--accent-press);
    --secondary-color: var(--accent);
    --text-light: var(--text-primary);
    --text-muted: var(--text-secondary);
    --text-dark: var(--text-tertiary);
    --bg-dark: var(--bg-base);
    --bg-darker: var(--bg-sunken);
    --bg-card: var(--surface-1);
    --bg-card-hover: var(--surface-2);
    --border-color: var(--border-default);
    --border-hover: var(--border-strong);
    --shadow: var(--shadow-sm);
    /* --shadow-lg comes straight from the design system */
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-body);
    line-height: var(--lh-body);
    color: var(--text-primary);
    background-color: var(--bg-base);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-7);
}

/* ---- Shared type patterns ---- */
.eyebrow {
    font: var(--fw-medium) var(--text-eyebrow)/1 var(--font-mono);
    letter-spacing: var(--tracking-eyebrow);
    text-transform: uppercase;
    color: var(--text-tertiary);
}

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

.section-head {
    max-width: 660px;
    margin-bottom: var(--space-9);
}

.section-title {
    font-size: var(--text-display-lg);
    line-height: var(--lh-display-lg);
    font-weight: var(--fw-medium);
    letter-spacing: var(--tracking-tight);
    color: var(--text-primary);
    margin: var(--space-4) 0 0;
}

.section-subtitle {
    font-size: var(--text-body-lg);
    line-height: var(--lh-body-lg);
    color: var(--text-secondary);
    margin: var(--space-4) 0 0;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: color-mix(in srgb, var(--bg-base) 80%, transparent);
    backdrop-filter: blur(12px);
    z-index: 1000;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-7);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 17px;
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-snug);
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--dur) var(--ease-out);
}

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

.nav-links {
    display: flex;
    gap: var(--space-7);
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: var(--text-body-sm);
    font-weight: var(--fw-regular);
    letter-spacing: -0.01em;
    transition: color var(--dur) var(--ease-out);
}

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

/* Hero Section */
.hero {
    height: calc(100vh - 60px);
    min-height: calc(100vh - 60px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 100px;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(60% 55% at 50% 0%, rgba(61, 139, 255, 0.14), transparent 70%);
    pointer-events: none;
    z-index: 1;
}

#waveform-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    display: block;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 780px;
    background: color-mix(in srgb, var(--bg-base) 72%, transparent);
    padding: var(--space-9) var(--space-9);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(8px);
}

.hero-title {
    font-size: var(--text-display-xl);
    line-height: var(--lh-display-xl);
    font-weight: var(--fw-medium);
    letter-spacing: var(--tracking-tight);
    color: var(--text-primary);
    margin: var(--space-6) 0 0;
}

.hero-subtitle {
    font-size: var(--text-body-lg);
    line-height: var(--lh-body-lg);
    color: var(--text-secondary);
    margin: var(--space-6) auto 0;
    max-width: 560px;
}

.hero-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    margin-top: var(--space-8);
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 64px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: var(--text-tertiary);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-default);
    background: color-mix(in srgb, var(--bg-base) 60%, transparent);
    backdrop-filter: blur(5px);
    transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
    animation: pulseCaret 2.4s var(--ease-in-out) infinite;
}

.scroll-indicator:hover {
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.scroll-indicator svg {
    width: 20px;
    height: 20px;
}

@keyframes pulseCaret {
    0%, 100% {
        opacity: 0.7;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateX(-50%) translateY(8px);
    }
}

.hero-description {
    font-size: var(--text-body-lg);
    margin-bottom: var(--space-7);
    color: var(--text-secondary);
    line-height: var(--lh-body-lg);
}

/* Buttons */
.cta-button {
    display: inline-block;
    padding: 14px 26px;
    background: var(--accent);
    color: var(--text-on-accent);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: var(--fw-medium);
    font-size: var(--text-body);
    letter-spacing: -0.01em;
    transition: background var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.cta-button:hover {
    background: var(--accent-hover);
    box-shadow: var(--glow-accent-soft);
    transform: translateY(-2px);
}

.cta-button:active {
    transform: scale(0.99);
}

.cta-button.outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
}

.cta-button.outline:hover {
    background: var(--surface-2);
    border-color: var(--border-strong);
    box-shadow: none;
}

/* Mutual AI Section */
.mutual-ai {
    padding: 104px 0;
    background: var(--bg-base);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.mutual-ai-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-9);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-7);
}

.mutual-ai-content {
    flex: 1;
    text-align: left;
    padding: var(--space-7) 0;
}

.mutual-ai-title {
    font-size: var(--text-display-lg);
    line-height: var(--lh-display-lg);
    font-weight: var(--fw-medium);
    letter-spacing: var(--tracking-tight);
    color: var(--text-primary);
    margin: var(--space-4) 0 var(--space-4);
}

.mutual-ai-description {
    font-size: var(--text-body-lg);
    color: var(--text-secondary);
    line-height: var(--lh-body-lg);
    margin-bottom: var(--space-7);
}

.mutual-ai-link {
    display: inline-block;
    padding: 12px 24px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: var(--fw-medium);
    font-size: var(--text-body-sm);
    transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.mutual-ai-link:hover {
    background: var(--surface-2);
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

/* Terminal Mockup — brand console: quiet surfaces, mono, one accent */
.terminal-mockup {
    flex: 1;
    max-width: 500px;
    background: var(--surface-1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-default);
    position: relative;
}

.terminal-header {
    background: var(--surface-2);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-default);
}

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

.terminal-btn {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
}

.terminal-btn-close {
    background: var(--danger-500);
    opacity: 0.7;
}

.terminal-btn-minimize {
    background: var(--warning-500);
    opacity: 0.7;
}

.terminal-btn-maximize {
    background: var(--success-500);
    opacity: 0.7;
}

.terminal-title {
    color: var(--text-secondary);
    font-size: var(--text-mono-sm);
    font-family: var(--font-mono);
    letter-spacing: 0.04em;
}

.terminal-body {
    padding: var(--space-5);
    font-family: var(--font-mono);
    font-size: var(--text-mono);
    line-height: 1.8;
    color: var(--text-secondary);
    background: var(--surface-inset);
    min-height: 200px;
}

.terminal-line {
    margin-bottom: 10px;
    opacity: 0;
    animation: fadeInLine var(--dur-slow) var(--ease-out) forwards;
}

.terminal-line:nth-child(1) { animation-delay: 0.1s; }
.terminal-line:nth-child(2) { animation-delay: 0.3s; }
.terminal-line:nth-child(3) { animation-delay: 0.5s; }
.terminal-line:nth-child(4) { animation-delay: 0.7s; }
.terminal-line:nth-child(5) { animation-delay: 0.9s; }
.terminal-line:nth-child(6) { animation-delay: 1.1s; }
.terminal-line:nth-child(7) { animation-delay: 1.3s; }

@keyframes fadeInLine {
    from {
        opacity: 0;
        transform: translateX(-8px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.terminal-prompt-user {
    color: var(--text-tertiary);
}

.terminal-prompt-ai {
    color: var(--text-accent);
}

.terminal-user {
    color: var(--text-primary);
}

.terminal-ai {
    color: var(--text-secondary);
}

@media (max-width: 968px) {
    .mutual-ai-wrapper {
        flex-direction: column;
        gap: var(--space-7);
    }

    .mutual-ai-content {
        text-align: left;
    }

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

/* Newsletter Section */
.newsletter {
    padding: 104px 0;
    background: var(--bg-base);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.newsletter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-7);
}

.newsletter-card {
    background: var(--surface-1);
    padding: var(--space-7);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border-default);
    transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
    display: block;
    opacity: 0;
    animation: fadeInUp 0.6s var(--ease-out) forwards;
}

.newsletter-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-accent);
}

.newsletter-card-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.newsletter-title {
    font-size: var(--text-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-snug);
    color: var(--text-primary);
    margin: 0;
}

.newsletter-date {
    font-family: var(--font-mono);
    font-size: var(--text-mono-sm);
    letter-spacing: var(--tracking-mono);
    color: var(--text-tertiary);
    margin: 0;
}

.newsletter-link {
    color: var(--text-accent);
    font-weight: var(--fw-medium);
    font-size: var(--text-body-sm);
    margin-top: var(--space-4);
    display: inline-block;
    transition: transform var(--dur) var(--ease-out);
}

.newsletter-card:hover .newsletter-link {
    transform: translateX(4px);
}

.newsletter-empty {
    text-align: center;
    padding: var(--space-10) var(--space-7);
    color: var(--text-tertiary);
    font-size: var(--text-body);
}

/* Newsletter Article Page Styles */
.newsletter-article {
    padding: 120px 0 80px;
    margin-top: 60px;
    min-height: calc(100vh - 60px);
    background: var(--bg-base);
}

.newsletter-article .container {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 0 var(--space-7);
}

.back-link {
    display: inline-block;
    color: var(--text-accent);
    text-decoration: none;
    margin-bottom: var(--space-7);
    font-weight: var(--fw-medium);
    font-size: var(--text-body-sm);
    transition: color var(--dur) var(--ease-out);
}

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

.newsletter-article h1 {
    font-size: var(--text-h1);
    line-height: var(--lh-h1);
    font-weight: var(--fw-medium);
    letter-spacing: var(--tracking-tight);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.article-date {
    font-family: var(--font-mono);
    font-size: var(--text-mono);
    letter-spacing: var(--tracking-mono);
    color: var(--text-tertiary);
    margin-bottom: var(--space-9);
    padding-bottom: var(--space-7);
    border-bottom: 1px solid var(--border-subtle);
}

.article-content {
    color: var(--text-primary);
    line-height: var(--lh-body-lg);
    font-size: var(--text-body-lg);
}

.article-content h2 {
    font-size: var(--text-h2);
    line-height: var(--lh-h2);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-snug);
    color: var(--text-primary);
    margin-top: var(--space-9);
    margin-bottom: var(--space-5);
}

.article-content h3 {
    font-size: var(--text-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    margin-top: var(--space-7);
    margin-bottom: var(--space-4);
}

.article-content p {
    margin-bottom: var(--space-5);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--space-5);
    padding-left: var(--space-7);
}

.article-content li {
    margin-bottom: var(--space-2);
}

.article-content a {
    color: var(--text-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--dur) var(--ease-out);
}

.article-content a:hover {
    border-bottom-color: var(--accent);
}

.article-content code {
    background: var(--surface-2);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-xs);
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--text-accent);
}

.article-content pre {
    background: var(--surface-inset);
    padding: var(--space-5);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--space-5);
    border: 1px solid var(--border-default);
}

.article-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.article-content blockquote {
    border-left: 2px solid var(--accent);
    padding-left: var(--space-5);
    margin: var(--space-7) 0;
    color: var(--text-secondary);
    font-style: italic;
}

/* Services Section */
.services {
    padding: 104px 0;
    background: var(--bg-base);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
}

.service-card {
    background: var(--surface-1);
    padding: var(--space-7);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-default);
    transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}

.service-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-strong);
    background: var(--surface-2);
}

.service-icon {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--space-5);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Icon Box Base Styles — engineered motifs, single blue accent */
.icon-box {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: var(--bg-sunken);
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-subtle);
    transition: box-shadow var(--dur) var(--ease-out);
    box-shadow: 0 0 30px rgba(61, 139, 255, 0.08);
}

.icon-box:hover,
.service-card:hover .icon-box {
    box-shadow: 0 0 40px rgba(61, 139, 255, 0.2);
}

/* UPSKILLING - Reactor Core */
.reactor-core-service {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--blue-500);
    border-bottom-color: var(--blue-500);
    animation: spin 3s linear infinite;
    position: relative;
}

.reactor-core-service::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-left-color: var(--blue-300);
    border-right-color: var(--blue-300);
    animation: spin 2s linear infinite reverse;
}

.reactor-core-service::after {
    content: '';
    position: absolute;
    top: 60px;
    left: 60px;
    right: 60px;
    bottom: 60px;
    border-radius: 50%;
    background: radial-gradient(circle, #fff, var(--blue-500));
    opacity: 0.7;
    animation: pulse 1.4s var(--ease-in-out) infinite alternate;
    box-shadow: 0 0 30px rgba(61, 139, 255, 0.5);
}

/* COACHING - Wavelength */
.icon-coaching canvas {
    display: block;
}

/* STRATEGY - Tactical HUD */
.hud-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid transparent;
}

.hud-ring.outer {
    width: 180px;
    height: 180px;
    border-top: 2px solid var(--blue-500);
    border-bottom: 2px solid var(--blue-500);
    opacity: 0.5;
    animation: rotate 8s linear infinite;
}

.hud-ring.mid {
    width: 140px;
    height: 140px;
    border-left: 2px dashed var(--blue-400);
    border-right: 2px dashed var(--blue-400);
    opacity: 0.8;
    animation: rotate 4s linear infinite reverse;
}

.hud-ring.inner {
    width: 80px;
    height: 80px;
    border: 1px solid rgba(61, 139, 255, 0.3);
    background: rgba(61, 139, 255, 0.05);
}

.hud-crosshair {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--blue-500);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(61, 139, 255, 0.7);
    animation: pulseTarget 2s var(--ease-in-out) infinite;
}

.scanner-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(61, 139, 255, 0.45);
    box-shadow: 0 0 10px rgba(61, 139, 255, 0.6);
    animation: scan 3s var(--ease-in-out) infinite;
}

/* DEVELOPMENT - Hyper Cube */
.icon-dev {
    perspective: 600px;
}

.cube {
    width: 80px;
    height: 80px;
    position: relative;
    transform-style: preserve-3d;
    animation: spinCube 8s linear infinite;
}

.face {
    position: absolute;
    width: 80px;
    height: 80px;
    border: 1px solid rgba(61, 139, 255, 0.65);
    background: rgba(61, 139, 255, 0.08);
    box-shadow: inset 0 0 20px rgba(61, 139, 255, 0.15);
}

.face.front {
    transform: rotateY(0deg) translateZ(40px);
}

.face.back {
    transform: rotateY(180deg) translateZ(40px);
}

.face.right {
    transform: rotateY(90deg) translateZ(40px);
}

.face.left {
    transform: rotateY(-90deg) translateZ(40px);
}

.face.top {
    transform: rotateX(90deg) translateZ(40px);
}

.face.bottom {
    transform: rotateX(-90deg) translateZ(40px);
}

/* Animation Keyframes */
@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulseTarget {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes scan {
    0% { top: 10%; opacity: 0; }
    50% { opacity: 1; }
    100% { top: 90%; opacity: 0; }
}

@keyframes spinCube {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}

.service-card h3 {
    font-size: var(--text-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-snug);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    font-size: var(--text-body-sm);
    line-height: var(--lh-body-sm);
}

/* Apps Section */
.apps {
    padding: 104px 0;
    background: var(--bg-base);
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-4);
}

.app-card {
    background: var(--surface-1);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    display: block;
    border: 1px solid var(--border-default);
    transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}

.app-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: var(--surface-2);
}

.app-icon {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--space-5);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* App Icon Box Base Styles */
.icon-box-app {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: var(--bg-sunken);
    position: relative;
    overflow: visible;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-subtle);
    transition: box-shadow var(--dur) var(--ease-out);
    box-shadow: 0 0 30px rgba(61, 139, 255, 0.08);
}

.app-card:hover .icon-box-app {
    box-shadow: 0 0 40px rgba(61, 139, 255, 0.2);
}

.icon-box-app > * {
    overflow: hidden;
    border-radius: 50%;
}

/* PYRAMID - Digital Maturity */
.pyramid-container-app {
    position: relative;
    width: 200px;
    height: 200px;
    transform-style: preserve-3d;
    transform: rotateX(60deg) rotateZ(45deg) scale(1);
}

.layer-app {
    position: absolute;
    top: 50%;
    left: 50%;
    background: rgba(61, 139, 255, 0.08);
    border: 2px solid var(--blue-500);
    box-shadow: 0 0 10px rgba(61, 139, 255, 0.5), inset 0 0 10px rgba(61, 139, 255, 0.35);
    transform: translate(-50%, -50%);
    opacity: 0;
    animation: buildUpApp 6s infinite var(--ease-in-out);
}

.l1-app {
    width: 180px;
    height: 180px;
    transform: translate(-50%, -50%) translateZ(0px);
    animation-delay: 0s;
}

.l2-app {
    width: 140px;
    height: 140px;
    transform: translate(-50%, -50%) translateZ(30px);
    animation-delay: 0.5s;
}

.l3-app {
    width: 100px;
    height: 100px;
    transform: translate(-50%, -50%) translateZ(60px);
    animation-delay: 1s;
}

.l4-app {
    width: 60px;
    height: 60px;
    transform: translate(-50%, -50%) translateZ(90px);
    animation-delay: 1.5s;
}

.top-node-app {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    background: var(--blue-bright);
    transform: translate(-50%, -50%) translateZ(120px);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(111, 180, 255, 0.7);
    opacity: 0;
    animation: buildUpNodeApp 6s infinite var(--ease-in-out);
    animation-delay: 2s;
}

@keyframes buildUpApp {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) translateZ(-200px) scale(0);
    }
    20% {
        opacity: 1;
        transform: translate(-50%, -50%) translateZ(var(--tz, 0px)) scale(1);
    }
    70% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) translateZ(200px) scale(0);
    }
}

@keyframes buildUpNodeApp {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) translateZ(-200px) scale(0);
    }
    20% {
        opacity: 1;
        transform: translate(-50%, -50%) translateZ(120px) scale(1);
    }
    70% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) translateZ(300px) scale(0);
    }
}

/* NEURAL NET - Technology Mental Models */
.icon-neural canvas {
    display: block;
    background: radial-gradient(circle at center, #0d0f12 0%, #060708 100%);
}

/* TREND LINE - Technology Trends */
.trend-svg-app {
    width: 100%;
    height: 100%;
    background-image: linear-gradient(transparent 95%, rgba(61, 139, 255, 0.08) 95%);
    background-size: 100% 10px;
    overflow: visible;
}

.axis-app {
    stroke: var(--neutral-300);
    stroke-width: 2;
}

.grid-line-app {
    stroke: var(--neutral-200);
    stroke-width: 1;
    stroke-dasharray: 2, 4;
}

#trendPathApp {
    fill: none;
    stroke: var(--blue-500);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    filter: drop-shadow(0 0 5px rgba(61, 139, 255, 0.6));
    transition: d 1.5s var(--ease-in-out);
}

#trendAreaApp {
    fill: rgba(61, 139, 255, 0.08);
    stroke: none;
    transition: d 1.5s var(--ease-in-out);
}

.trend-label-app {
    fill: var(--blue-bright);
    font-family: var(--font-mono);
    font-size: 10px;
    opacity: 0.7;
}

.app-card h3 {
    font-size: var(--text-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-snug);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.app-card p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    font-size: var(--text-body-sm);
    line-height: var(--lh-body-sm);
}

.app-link {
    color: var(--text-accent);
    font-weight: var(--fw-medium);
    font-size: var(--text-body-sm);
    display: inline-block;
}

/* Contact Section */
.contact {
    padding: 104px 0;
    background: var(--bg-base);
}

.contact-form {
    max-width: 600px;
    background: var(--surface-1);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-default);
}

.reactor-wrapper {
    flex: 0 0 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    background: var(--surface-1);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-default);
    padding: var(--space-7);
}

.reactor-core {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--blue-500);
    border-bottom-color: var(--blue-500);
    animation: spin 3s linear infinite;
    box-shadow: 0 0 50px rgba(61, 139, 255, 0.2);
    position: relative;
}

.reactor-core::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-left-color: var(--blue-300);
    border-right-color: var(--blue-300);
    animation: spin 2s linear infinite reverse;
}

.reactor-core::after {
    content: '';
    position: absolute;
    top: 40px;
    left: 40px;
    right: 40px;
    bottom: 40px;
    border-radius: 50%;
    background: radial-gradient(circle, #fff, var(--blue-500));
    opacity: 0.7;
    animation: pulse 1.4s var(--ease-in-out) infinite alternate;
    box-shadow: 0 0 30px rgba(61, 139, 255, 0.5);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0% { transform: scale(0.85); opacity: 0.5; }
    100% { transform: scale(1.05); opacity: 0.9; }
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--text-eyebrow);
    font-weight: var(--fw-medium);
    letter-spacing: var(--tracking-eyebrow);
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    font-size: var(--text-body-sm);
    font-family: var(--font-sans);
    background: var(--surface-inset);
    color: var(--text-primary);
    transition: border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--border-accent);
    box-shadow: var(--ring-focus);
}

.submit-button {
    width: 100%;
    padding: 14px;
    background: var(--accent);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-body);
    font-family: var(--font-sans);
    font-weight: var(--fw-medium);
    letter-spacing: -0.01em;
    cursor: pointer;
    transition: background var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.submit-button:hover {
    background: var(--accent-hover);
    box-shadow: var(--glow-accent-soft);
    transform: translateY(-2px);
}

.form-message {
    margin-top: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: var(--text-body-sm);
    display: none;
}

.form-message.success {
    background: rgba(47, 191, 113, 0.12);
    color: var(--success-bright);
    border: 1px solid rgba(47, 191, 113, 0.3);
    display: block;
}

.form-message.error {
    background: rgba(255, 93, 93, 0.12);
    color: var(--danger-bright);
    border: 1px solid rgba(255, 93, 93, 0.3);
    display: block;
}

/* Footer */
.footer {
    background: var(--bg-base);
    color: var(--text-tertiary);
    padding: var(--space-8) 0;
    border-top: 1px solid var(--border-subtle);
    font-family: var(--font-mono);
    font-size: var(--text-mono-sm);
    letter-spacing: var(--tracking-mono);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.footer .container:not(.footer-inner) {
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: var(--text-h1);
        line-height: var(--lh-h1);
    }

    .hero-subtitle {
        font-size: var(--text-body);
    }

    .hero-content {
        padding: var(--space-7) var(--space-6);
    }

    .section-title {
        font-size: var(--text-h2);
        line-height: var(--lh-h2);
    }

    .nav-links {
        gap: var(--space-4);
    }

    .logo span {
        display: none;
    }

    .services-grid,
    .apps-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: var(--space-6);
        max-width: 100%;
    }
}
