:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #64748b;
    --color-text: #0f172a;
    --color-text-light: #64748b;
    --color-background: #ffffff;
    --color-surface: #f8fafc;
    --color-border: #e2e8f0;
    --color-success: #16a34a;
    --color-error: #dc2626;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --max-width: 1200px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: clamp(2.5rem, 4vw, 3.5rem);
    --border-radius: 10px;
    --border-radius-pill: 50px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08), 0 4px 8px rgba(0, 0, 0, 0.04);
    --color-alert-success-bg: #dcfce7;
    --color-alert-success-border: #bbf7d0;
    --color-alert-error-bg: #fee2e2;
    --color-alert-error-border: #fecaca;
    --color-hero-from: var(--color-primary);
    --color-hero-to: var(--color-primary-dark);
    --transition: 0.25s ease;
    --grid-line: rgba(0, 0, 0, 0.045);
    --grid-dot: rgba(0, 0, 0, 0.06);
    --hero-grid-line: rgba(255, 255, 255, 0.12);
    --hero-grid-dot: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] {
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-secondary: #94a3b8;
    --color-text: #f1f5f9;
    --color-text-light: #94a3b8;
    --color-background: #0f172a;
    --color-surface: #1e293b;
    --color-border: #334155;
    --color-success: #22c55e;
    --color-error: #ef4444;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25), 0 2px 4px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.3), 0 4px 8px rgba(0, 0, 0, 0.2);
    --color-alert-success-bg: #052e16;
    --color-alert-success-border: #14532d;
    --color-alert-error-bg: #450a0a;
    --color-alert-error-border: #7f1d1d;
    --color-hero-from: #1e293b;
    --color-hero-to: #0f172a;
    --grid-line: rgba(255, 255, 255, 0.04);
    --grid-dot: rgba(255, 255, 255, 0.06);
    --hero-grid-line: rgba(255, 255, 255, 0.1);
    --hero-grid-dot: rgba(255, 255, 255, 0.18);
}

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

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

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-background);
    background-image:
        radial-gradient(circle, var(--grid-dot) 0.75px, transparent 0.75px),
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* Header */
.site-header {
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: color-mix(in srgb, var(--color-background) 85%, transparent);
}

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

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.02em;
}

.logo-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
}

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

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

/* Main Content */
.main-content {
    flex: 1;
}

/* Hero Section */
.hero {
    background:
        radial-gradient(circle, var(--hero-grid-dot) 1px, transparent 1px),
        linear-gradient(var(--hero-grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--hero-grid-line) 1px, transparent 1px),
        radial-gradient(ellipse at 30% 50%, rgba(255,255,255,0.06) 0%, transparent 60%),
        linear-gradient(135deg, var(--color-hero-from) 0%, var(--color-hero-to) 100%);
    background-size: 64px 64px, 64px 64px, 64px 64px, 100% 100%, 100% 100%;
    color: white;
    padding: clamp(3rem, 6vw, 5rem) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
    letter-spacing: -0.03em;
    font-weight: 800;
}

.hero p {
    font-size: clamp(1.0625rem, 2vw, 1.25rem);
    opacity: 0.85;
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius-pill);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    font-size: 0.9375rem;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.hero .btn-primary {
    background: white;
    color: var(--color-primary);
    border-color: white;
}

.hero .btn-primary:hover {
    background: transparent;
    color: white;
}

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

.btn-secondary:hover {
    border-color: var(--color-primary);
    background: var(--color-surface);
}

/* Section Headings (shared) */
.services h2,
.projects h2,
.expertise > .container > h2,
.approach h2,
.product-features h2,
.jobs-intro h2 {
    text-align: center;
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: -0.02em;
    font-weight: 700;
    line-height: 1.2;
}

/* Services Section */
.services {
    padding: var(--spacing-xxl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.service-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Projects Section */
.projects {
    padding: var(--spacing-xxl) 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    display: block;
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--color-text);
    border: 1px solid var(--color-border);
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.project-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.project-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.project-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Intro Section */
.intro {
    padding: var(--spacing-xxl) 0;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.intro-content h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
    letter-spacing: -0.02em;
    font-weight: 700;
    line-height: 1.2;
}

.intro-content p {
    font-size: 1.0625rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
    line-height: 1.8;
}

.intro-content p:last-child {
    margin-bottom: 0;
}

/* Expertise Section */
.expertise {
    padding: var(--spacing-xxl) 0;
}

.expertise-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(1.5rem, 3vw, 2.5rem);
    align-items: center;
    margin-bottom: var(--spacing-xxl);
}

.expertise-item:last-child {
    margin-bottom: 0;
}

.expertise-item.reverse {
    direction: rtl;
}

.expertise-item.reverse > * {
    direction: ltr;
}

.expertise-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.expertise-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.expertise-image img.align-right {
    object-position: right center;
}

.expertise-content h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    font-weight: 700;
    line-height: 1.2;
}

.expertise-content p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.expertise-content p:first-of-type {
    font-size: 1.0625rem;
    color: var(--color-text);
    font-weight: 500;
}

.expertise-content code {
    background: var(--color-background);
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875em;
    color: var(--color-primary);
}

/* Approach Section */
.approach {
    padding: var(--spacing-xxl) 0;
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.approach-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

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

.approach-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.approach-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* CTA Section */
.cta {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.cta h2 {
    margin-bottom: var(--spacing-sm);
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: -0.02em;
    font-weight: 700;
}

.cta p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-size: 1.0625rem;
}

/* Page Header */
.page-header {
    padding: clamp(2rem, 3vw, 2.5rem) 0;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    font-weight: 800;
    line-height: 1.2;
}

.page-header p {
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.0625rem;
    line-height: 1.7;
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-xxl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(1.5rem, 3vw, 2.5rem);
}

.contact-info h2 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.contact-details {
    margin-top: var(--spacing-xl);
}

.contact-item {
    margin-bottom: var(--spacing-lg);
}

.contact-item h3 {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.contact-form-wrapper {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.01em;
}

.form-group input,
.form-group textarea {
    padding: 0.75rem var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    background: var(--color-background);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 15%, transparent);
}

.alert {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.alert-success {
    background: var(--color-alert-success-bg);
    color: var(--color-success);
    border: 1px solid var(--color-alert-success-border);
}

.alert-error {
    background: var(--color-alert-error-bg);
    color: var(--color-error);
    border: 1px solid var(--color-alert-error-border);
}

/* Contact Content (mailto version) */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-content h2 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.contact-content > p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.contact-content .contact-details {
    margin-bottom: var(--spacing-xl);
}

.contact-content .contact-item {
    margin-bottom: var(--spacing-lg);
}

.contact-email-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 1.125rem;
    font-weight: 500;
    transition: color var(--transition);
}

.contact-email-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Payment Placeholder */
.payment-placeholder {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.payment-placeholder p {
    color: var(--color-text-light);
    font-size: 1.125rem;
}

/* Jobs Section */
.jobs-section {
    padding: var(--spacing-xxl) 0;
}

.jobs-intro {
    margin-bottom: var(--spacing-xxl);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.benefit {
    text-align: center;
    padding: var(--spacing-lg);
}

.benefit h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.benefit p {
    color: var(--color-text-light);
    line-height: 1.7;
}

.jobs-list {
    margin-top: var(--spacing-xxl);
}

.jobs-list h2 {
    margin-bottom: var(--spacing-xl);
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: -0.02em;
    font-weight: 700;
}

.job-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.job-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.job-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.job-header h3 {
    color: var(--color-text);
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.job-meta {
    display: flex;
    gap: var(--spacing-sm);
}

.job-location,
.job-type {
    background: var(--color-background);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-pill);
    font-size: 0.8125rem;
    color: var(--color-text-light);
    font-weight: 500;
}

.job-description {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
    line-height: 1.7;
}

.no-jobs {
    text-align: center;
    color: var(--color-text-light);
    padding: var(--spacing-xxl) 0;
    font-size: 1.0625rem;
}

/* Project Page */
.project-page {
    padding-bottom: var(--spacing-xxl);
}

.project-header {
    background-color: var(--color-surface);
    background-image:
        radial-gradient(circle, var(--grid-dot) 0.75px, transparent 0.75px),
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
    padding: clamp(1.5rem, 3vw, 2.5rem) 0;
    border-bottom: 1px solid var(--color-border);
}

.back-link {
    display: inline-flex;
    align-items: center;
    color: var(--color-primary);
    text-decoration: none;
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--transition);
}

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

.project-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    font-weight: 800;
    line-height: 1.2;
}

.project-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.project-date {
    font-size: 0.875rem;
    color: var(--color-secondary);
}

.project-content {
    padding: var(--spacing-xxl) 0;
    max-width: 800px;
}

.project-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.project-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
    letter-spacing: -0.01em;
}

.project-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.project-content ul,
.project-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.project-content li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
}

.project-content code {
    background: var(--color-surface);
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875em;
}

.project-content pre {
    background: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.project-content pre code {
    background: none;
    padding: 0;
}

/* Product Page */
.product-hero {
    background:
        radial-gradient(circle, var(--hero-grid-dot) 1px, transparent 1px),
        linear-gradient(var(--hero-grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--hero-grid-line) 1px, transparent 1px),
        radial-gradient(ellipse at 30% 50%, rgba(255,255,255,0.06) 0%, transparent 60%),
        linear-gradient(135deg, var(--color-hero-from) 0%, var(--color-hero-to) 100%);
    background-size: 64px 64px, 64px 64px, 64px 64px, 100% 100%, 100% 100%;
    color: white;
    padding: clamp(3rem, 6vw, 5rem) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.product-hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    letter-spacing: -0.03em;
    font-weight: 800;
}

.product-tagline {
    font-size: clamp(1.0625rem, 2vw, 1.25rem);
    opacity: 0.85;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
}

.product-hero .btn-primary {
    background: white;
    color: var(--color-primary);
    border-color: white;
}

.product-hero .btn-primary:hover {
    background: transparent;
    color: white;
}

.product-overview {
    padding: var(--spacing-xxl) 0;
}

.product-overview h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
    font-weight: 700;
}

.product-overview p {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    line-height: 1.8;
    max-width: 800px;
}

.product-features {
    padding: var(--spacing-xxl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition), transform var(--transition);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.feature-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

.product-cta {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.product-cta h2 {
    margin-bottom: var(--spacing-sm);
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: -0.02em;
    font-weight: 700;
}

.product-cta p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-size: 1.0625rem;
}

/* Tools Listing */
.tools-section {
    padding: var(--spacing-xxl) 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.tool-card {
    display: block;
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--color-text);
    border: 1px solid var(--color-border);
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.tool-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.tool-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.tool-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.tool-card .btn {
    font-size: 0.8125rem;
    padding: 0.5rem 1.25rem;
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-pill);
    cursor: pointer;
    padding: 0.375rem 0.75rem;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-family: inherit;
    transition: border-color var(--transition), color var(--transition);
}

.theme-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon,
.theme-toggle .icon-auto {
    display: none;
}

.theme-toggle[data-mode="light"] .icon-sun {
    display: block;
}

.theme-toggle[data-mode="dark"] .icon-moon {
    display: block;
}

.theme-toggle[data-mode="auto"] .icon-auto {
    display: block;
}

/* Dark mode hero buttons */
[data-theme="dark"] .hero .btn-primary,
[data-theme="dark"] .product-hero .btn-primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

[data-theme="dark"] .hero .btn-primary:hover,
[data-theme="dark"] .product-hero .btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

/* Form inputs in dark mode */
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea {
    background: var(--color-surface);
    color: var(--color-text);
}

/* Surface sections carry the grid pattern */
.services,
.expertise,
.cta,
.page-header,
.product-features {
    background-color: var(--color-surface);
    background-image:
        radial-gradient(circle, var(--grid-dot) 0.75px, transparent 0.75px),
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
}

/* Footer */
.site-footer {
    background: var(--color-text);
    color: white;
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    text-align: center;
}

.footer-container p {
    opacity: 0.6;
    font-size: 0.8125rem;
    letter-spacing: 0.01em;
}

/* Responsive */
@media (max-width: 968px) {
    .expertise-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .expertise-item.reverse {
        direction: ltr;
    }

    .expertise-image img {
        height: 250px;
    }

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

@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-md);
    }

    .nav-links a::after {
        display: none;
    }

    .hero h1,
    .product-hero h1 {
        font-size: clamp(1.75rem, 6vw, 2.25rem);
    }

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

    .job-header {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .nav-container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .nav-right {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .nav-links {
        gap: var(--spacing-sm);
    }

    .container,
    .nav-container,
    .hero-content,
    .intro-content {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}