:root {
    --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    --color-bg-base: #050b18;
    --color-bg-surface: #0a1426;
    --color-bg-raised: #0f1d35;
    --color-border-subtle: #1e2a45;

    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    --color-text-faint: #64748b;

    --color-accent: #22d3ee;
    --color-accent-strong: #67e8f9;
    --color-accent-soft: rgba(34, 211, 238, 0.10);
    --color-accent-ring: rgba(34, 211, 238, 0.30);

    --color-success: #34d399;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;

    --app-nav-height: 72px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-padding-top: var(--app-nav-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-sans);
    font-feature-settings: "cv11", "ss01", "ss03";
    background-color: var(--color-bg-base);
    color: var(--color-text-primary);
}

img,
.picture,
.hero-image {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

.page-width {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
}

.nav {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(5, 11, 24, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(20px);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--app-nav-height);
    gap: 1rem;
}

.site-title {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.site-logo {
    height: 36px;
    width: 36px;
    max-height: 36px;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0;
    margin: 0;
    list-style: none;
}

.nav-menu li a {
    color: var(--color-text-secondary);
    transition: color 0.2s ease;
}

.nav-menu li a:hover,
.nav-menu li a:focus-visible {
    color: var(--color-accent-strong);
}

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(15, 29, 53, 0.85);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    cursor: pointer;
    padding: 0;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
    border-color: rgba(34, 211, 238, 0.4);
    color: var(--color-accent-strong);
    outline: none;
}

.nav-toggle svg {
    width: 20px;
    height: 20px;
}

.nav-toggle .nav-toggle-close,
.nav-toggle[aria-expanded="true"] .nav-toggle-open {
    display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-close {
    display: block;
}

body.nav-locked {
    overflow: hidden;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0.85rem 1.4rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-1px);
}

.button-primary {
    background-color: var(--color-accent);
    color: #050b18;
}

.button-secondary {
    background-color: transparent;
    border: 1px solid rgba(34, 211, 238, 0.5);
    color: var(--color-accent);
}

.hero {
    position: relative;
    display: flex;
    align-items: center;
    padding: 10rem 0 5rem;
    background-image: linear-gradient(rgba(5, 11, 24, 0.8), rgba(5, 11, 24, 0.8)), url('images/hero-bg.png');
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(5, 11, 24, 0.4), rgba(5, 11, 24, 0.9));
}

.hero-content {
    position: relative;
    display: grid;
    gap: 1.5rem;
    text-align: center;
}

.hero-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.hero h1 {
    margin: 0;
    font-size: clamp(2.8rem, 5vw, 5rem);
    line-height: 1.02;
}

.hero-copy,
.section-copy,
.footer p,
.card p,
.team-card p {
    color: var(--color-text-secondary);
    line-height: 1.85;
}

.eyebrow {
    margin: 0;
    color: var(--color-accent);
    font-size: 0.82rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.section {
    padding: 5rem 0;
}

.section-alt {
    background: linear-gradient(180deg, rgba(5, 11, 24, 1), rgba(10, 20, 38, 1));
}

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

.section h2 {
    margin: 1rem auto 1.5rem;
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1.05;
}

.section-copy {
    max-width: 760px;
    margin: 0 auto;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.card,
.team-card {
    background: rgba(15, 29, 53, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover,
.team-card:hover {
    transform: translateY(-3px);
    border-color: rgba(34, 211, 238, 0.28);
    box-shadow: 0 18px 40px -18px rgba(34, 211, 238, 0.35);
}

.card p,
.team-card p {
    text-align: left;
}

.card-icon {
    width: 3.2rem;
    height: 3.2rem;
    display: grid;
    place-items: center;
    border-radius: 1rem;
    background: rgba(34, 211, 238, 0.12);
    border: 1px solid rgba(34, 211, 238, 0.25);
    color: var(--color-accent);
    margin: 0 auto 1.25rem;
}

.card-icon svg {
    width: 1.6rem;
    height: 1.6rem;
    display: block;
}

.card h3,
.team-card h3 {
    margin: 0 0 1rem;
    font-size: 1.25rem;
}

.cta-row {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2.25rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
}

.team-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    background-size: cover;
    background-position: center;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.blog-search-wrap {
    position: relative;
    max-width: 480px;
    margin: 2.5rem auto 0;
}

.blog-search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.05rem;
    height: 1.05rem;
    color: var(--color-text-muted);
    pointer-events: none;
}

.blog-search {
    width: 100%;
    padding: 0.85rem 1rem 0.85rem 2.75rem;
    background: rgba(15, 29, 53, 0.85);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}

.blog-search:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-ring);
}

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

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    max-width: 760px;
    margin: 1.25rem auto 0;
}

.blog-tag-chip {
    background: rgba(15, 29, 53, 0.85);
    border: 1px solid var(--color-border-subtle);
    color: var(--color-text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.blog-tag-chip:hover,
.blog-tag-chip:focus-visible {
    border-color: rgba(34, 211, 238, 0.4);
    color: var(--color-text-primary);
    outline: none;
}

.blog-tag-chip.is-active {
    background: rgba(34, 211, 238, 0.12);
    border-color: var(--color-accent);
    color: var(--color-accent-strong);
}

.blog-list {
    display: grid;
    gap: 1.25rem;
    margin: 1.5rem auto 0;
    max-width: 760px;
    text-align: left;
}

.blog-card {
    display: block;
    background: rgba(15, 29, 53, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 1.75rem 2rem;
    color: inherit;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.blog-card:hover,
.blog-card:focus-visible {
    transform: translateY(-3px);
    border-color: rgba(34, 211, 238, 0.28);
    box-shadow: 0 18px 40px -18px rgba(34, 211, 238, 0.35);
}

.blog-card h3 {
    margin: 0.35rem 0 0.6rem;
    font-size: 1.4rem;
    line-height: 1.25;
}

.blog-card-meta {
    margin: 0;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.blog-card-meta-sep {
    color: var(--color-text-faint);
    margin: 0 0.15rem;
}

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

.blog-card-summary {
    margin: 0 0 1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.blog-card-link {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.95rem;
}

.blog-loading,
.blog-empty,
.blog-error {
    color: var(--color-text-muted);
    text-align: center;
    margin: 2rem 0;
}

.blog-error code {
    background: rgba(15, 29, 53, 0.85);
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85em;
}

.blog-post {
    max-width: 720px;
    margin: 1rem auto 0;
    text-align: left;
}

.blog-back {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.blog-back:hover,
.blog-back:focus-visible {
    color: var(--color-accent-strong);
}

.blog-post-meta {
    margin: 0;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.blog-post-title {
    margin: 0.6rem 0 2rem;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.1;
}

.blog-post-content {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.blog-post-content > * + * {
    margin-top: 1.25rem;
}

.blog-post-content h1,
.blog-post-content h2,
.blog-post-content h3,
.blog-post-content h4 {
    color: var(--color-text-primary);
    line-height: 1.25;
    margin-top: 2.25rem;
}

.blog-post-content h2 {
    font-size: 1.6rem;
}

.blog-post-content h3 {
    font-size: 1.25rem;
}

.blog-post-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-color: rgba(34, 211, 238, 0.4);
}

.blog-post-content a:hover {
    color: var(--color-accent-strong);
    text-decoration-color: var(--color-accent-strong);
}

.blog-post-content ul,
.blog-post-content ol {
    padding-left: 1.4rem;
}

.blog-post-content li + li {
    margin-top: 0.4rem;
}

.blog-post-content code {
    background: rgba(15, 29, 53, 0.85);
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--color-accent-strong);
}

.blog-post-content pre {
    background: rgba(10, 20, 38, 0.95);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    overflow-x: auto;
}

.blog-post-content pre code {
    background: none;
    padding: 0;
    color: var(--color-text-primary);
    font-size: 0.9rem;
}

.blog-post-content blockquote {
    margin: 1.5rem 0;
    padding: 0.5rem 1.25rem;
    border-left: 3px solid var(--color-accent);
    background: rgba(34, 211, 238, 0.06);
    color: var(--color-text-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.blog-post-content blockquote p {
    margin: 0;
}

.blog-post-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
}

.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 3.5rem 0;
    background: #050b18;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 3rem;
}

.footer-mark {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    font-size: 1.05rem;
}

.footer-col h3 {
    margin: 0 0 1rem;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--color-text-muted);
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.6rem;
}

.footer-col a {
    color: var(--color-text-secondary);
    transition: color 0.2s ease;
}

.footer-col a:hover,
.footer-col a:focus-visible {
    color: var(--color-accent-strong);
}


@media (max-width: 900px) {
    .cards-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: inline-flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
        padding: 1rem;
        background: rgba(5, 11, 24, 0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        box-shadow: 0 18px 40px -18px rgba(5, 11, 24, 0.9);
        display: none;
    }

    .nav-menu.is-open {
        display: flex;
    }

    .nav-menu ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu li a {
        display: block;
        padding: 0.85rem 1rem;
        border-radius: var(--radius-md);
        border: 1px solid transparent;
        color: var(--color-text-primary);
    }

    .nav-menu li a:hover,
    .nav-menu li a:focus-visible,
    .nav-menu li a[aria-current="page"] {
        border-color: var(--color-border-subtle);
        background: rgba(15, 29, 53, 0.85);
        color: var(--color-accent-strong);
    }

    .nav-menu .button {
        width: 100%;
        margin-top: 0.5rem;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 3rem 0;
    }

    .hero h1 {
        font-size: clamp(2.5rem, 8vw, 3.5rem);
    }

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