/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
    width: 100%;
}

body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

:root {
    /* Color palette - clean, professional, technical */
    --color-bg: #ffffff;
    --color-bg-alt: #fafafa;
    --color-text: #1a1a1a;
    --color-text-secondary: #6b7280;
    --color-accent: #0066cc;
    --color-accent-hover: #0052a3;
    --color-border: #e5e7eb;
    --color-code-bg: #f5f5f5;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* Spacing - more generous */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4.5rem;
    --spacing-xl: 7rem;

    /* Layout */
    --max-width: 1200px;
    --content-width: 800px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Prevent layout shift during font loading */
html.fonts-loading body {
    opacity: 0;
}

html.fonts-loaded body {
    opacity: 1;
    transition: opacity 0.2s ease-in;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
    overflow-x: hidden;
}

.content {
    max-width: var(--content-width);
    margin: 0 auto;
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    padding: calc(var(--spacing-sm) * 1.25) 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-icon {
    width: 32px;
    height: 32px;
}

.logo-text {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 1.125rem;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 400;
    transition: color 0.2s ease;
}

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

/* Hero */
.hero {
    margin-top: 5rem;
    padding: calc(var(--spacing-xl) * 1.5) 0;
    position: relative;
    background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    text-align: center;
}

.hero .container {
    max-width: 900px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: min(600px, 100%);
    height: min(600px, 100%);
    background: radial-gradient(circle, rgba(0, 102, 204, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-title {
    font-size: clamp(2.25rem, 5.5vw, 4rem);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: calc(var(--spacing-md) * 1.25);
    color: var(--color-text);
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: var(--color-text-secondary);
    font-weight: 400;
    max-width: 720px;
    line-height: 1.6;
    margin: 0 auto;
}

/* Sections */
.section {
    padding: var(--spacing-lg) 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    margin-bottom: calc(var(--spacing-md) * 1.25);
}

.text-content {
    font-size: 1.0625rem;
    color: var(--color-text);
}

.text-content p {
    margin-bottom: var(--spacing-md);
}

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

/* Illustrations */
.section-illustration {
    width: 100%;
    max-width: 600px;
}

.section-illustration.centered {
    margin: 0 auto;
}

.section-illustration img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
}

/* Ensure all images are responsive */
img {
    max-width: 100%;
    height: auto;
}

svg {
    max-width: 100%;
    height: auto;
}

.text-link {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.text-link:hover {
    color: var(--color-accent-hover);
    text-decoration: underline;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
    gap: calc(var(--spacing-md) * 1.25);
    margin-top: calc(var(--spacing-md) * 1.5);
}

.service-card {
    padding: calc(var(--spacing-md) * 1.25);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.service-card:hover {
    border-color: transparent;
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 52px;
    height: 52px;
    margin-bottom: calc(var(--spacing-sm) * 1.25);
    padding: 12px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.05) 0%, rgba(0, 102, 204, 0.02) 100%);
    border-radius: 8px;
}

.service-icon img {
    width: 100%;
    height: 100%;
}

.service-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.service-description {
    font-size: 0.9375rem;
    line-height: 1.65;
    color: var(--color-text-secondary);
}

/* Contact */
.contact-info {
    margin-top: var(--spacing-md);
}

.contact-link {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}

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

.footer-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .header {
        padding: var(--spacing-sm) 0;
    }

    .header .container {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: center;
    }

    .nav {
        gap: var(--spacing-md);
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-link {
        font-size: 1rem;
        padding: var(--spacing-xs);
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .hero {
        margin-top: 8rem;
        padding: var(--spacing-md) 0;
    }

    .hero::before {
        opacity: 0.5;
        background-size: cover;
    }

    .hero-title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }

    .hero-subtitle {
        font-size: clamp(1rem, 4vw, 1.25rem);
    }

    .section-illustration {
        max-width: 100%;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .service-card {
        padding: var(--spacing-sm);
    }

    .section {
        padding: var(--spacing-md) 0;
    }

    .section-title {
        font-size: 0.875rem;
    }

    .text-content {
        font-size: 1rem;
    }

    .contact-link {
        font-size: 1.125rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2.5rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .logo-icon {
        width: 28px;
        height: 28px;
    }

    .logo-text {
        font-size: 1rem;
    }

    .nav {
        width: 100%;
    }

    .nav-link {
        flex: 1;
        justify-content: center;
        text-align: center;
    }

    .hero {
        margin-top: 9rem;
    }

    .service-icon {
        width: 40px;
        height: 40px;
    }
}

/* Smooth scrolling offset for fixed header */
section {
    scroll-margin-top: 5rem;
}

/* Focus styles for accessibility */
a:focus,
button:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Selection color */
::selection {
    background-color: var(--color-accent);
    color: white;
}

/* Page-specific styles */

/* Page Header */
.page-header {
    margin-top: 5rem;
    padding: calc(var(--spacing-xl) * 1.2) 0 var(--spacing-xl) 0;
    background: linear-gradient(to bottom, #fafafa 0%, #ffffff 100%);
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    font-weight: 300;
    max-width: 700px;
}

/* Active navigation link */
.nav-link-active {
    color: var(--color-accent);
}

/* Capabilities Page */
.capabilities-grid {
    display: grid;
    gap: var(--spacing-lg);
    max-width: var(--max-width);
    margin: 0 auto;
}

.capability-section {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-md);
}

.capability-section:last-child {
    border-bottom: none;
}

.capability-title {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.capability-icon {
    font-size: 1.75rem;
    opacity: 0.8;
}

.capability-content {
    max-width: var(--content-width);
}

.capability-subtitle {
    font-size: 1rem;
    font-weight: 500;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.capability-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: var(--spacing-md);
}

.capability-list li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
}

.capability-list li:before {
    content: "·";
    position: absolute;
    left: 0.5rem;
    color: var(--color-accent);
    font-weight: bold;
    font-size: 1.5rem;
    line-height: 1.2;
}

/* Case Studies */
.case-studies {
    display: grid;
    gap: var(--spacing-lg);
    max-width: var(--max-width);
    margin: 0 auto;
}

.case-study {
    border-left: 3px solid var(--color-border);
    padding-left: var(--spacing-md);
    position: relative;
}

.case-study-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
    opacity: 0.8;
}

.case-study-icon svg {
    width: 100%;
    height: 100%;
}

.case-study-title {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.case-study-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.case-study-industry,
.case-study-duration {
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
}

.case-study-content {
    max-width: var(--content-width);
}

.case-study-subtitle {
    font-size: 1rem;
    font-weight: 500;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.case-study-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.case-study-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

/* Tags */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 3px;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
}

/* Blog Listing */
.blog-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.blog-card {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-lg);
}

.blog-card:last-child {
    border-bottom: none;
}

.blog-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
}

.blog-date {
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
}

.blog-category {
    color: var(--color-accent);
    font-weight: 500;
}

.blog-card-title {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.blog-card-link {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s ease;
}

.blog-card-link:hover {
    color: var(--color-accent);
}

.blog-excerpt {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

/* Blog Post */
.blog-post-header {
    margin-top: 5rem;
    padding: var(--spacing-xl) 0 var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.blog-post-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
}

.blog-post-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.blog-post-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    font-weight: 300;
    margin-bottom: var(--spacing-md);
}

.blog-post-content {
    padding: var(--spacing-xl) 0;
}

.blog-post-content .content {
    font-size: 1.0625rem;
}

.blog-post-content h2 {
    font-size: 1.75rem;
    font-weight: 500;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.blog-post-content h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.blog-post-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.blog-post-content .lead {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.blog-post-content ol,
.blog-post-content ul {
    margin-bottom: var(--spacing-md);
    padding-left: 1.5rem;
}

.blog-post-content li {
    margin-bottom: 0.5rem;
}

.blog-post-content code {
    background-color: var(--color-code-bg);
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.blog-post-content pre {
    background-color: var(--color-code-bg);
    padding: var(--spacing-md);
    border-radius: 4px;
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.blog-post-content pre code {
    background-color: transparent;
    padding: 0;
}

.blog-post-footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

/* Responsive adjustments for new pages */
@media (max-width: 768px) {
    .page-header {
        margin-top: 6rem;
        padding: var(--spacing-lg) 0 var(--spacing-md) 0;
    }

    .blog-post-header {
        margin-top: 6rem;
        padding: var(--spacing-lg) 0 var(--spacing-md) 0;
    }

    .case-study {
        border-left-width: 2px;
        padding-left: var(--spacing-sm);
    }
}