/* ============================================================
   Strataon — Design tokens
   ============================================================ */
:root {
    /* Brand palette */
    --cobalt: #2952A0;
    --azurite: #23366A;
    --carbon: #292C39;
    --tin: #A5ACAF;
    --slate: #394A58;

    --board: #23AE86;
    --patina: #8CCBB7;
    --wire: #DD5034;
    --silver: #D1D4D3;
    --clear: #FFFFFF;

    --font-display: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Roboto Mono', 'SFMono-Regular', Consolas, monospace;

    --container-max: 1280px;
    --container-narrow-max: 760px;
    --side-pad: clamp(1.5rem, 5vw, 5rem);

    --section-pad: clamp(4.5rem, 9vw, 8.5rem);
    --section-pad-sm: clamp(2.5rem, 5vw, 4rem);

    --radius-lg: 1.5rem;
    --radius-md: 1rem;
    --radius-sm: 0.6rem;

    --ease: cubic-bezier(.16,.84,.44,1);
}

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
    margin: 0;
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--carbon);
    background: var(--clear);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; }

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.15;
    margin: 0 0 1rem;
    letter-spacing: -0.01em;
}

h2 { font-size: clamp(1.9rem, 3vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p { margin: 0 0 1rem; color: var(--slate); }

.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    background: var(--clear);
    color: var(--carbon);
    padding: 0.75rem 1.25rem;
    z-index: 1000;
    border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

.container--narrow {
    max-width: var(--container-narrow-max);
    margin: 0 auto;
    padding: 0 var(--side-pad);
}

.section-pad { padding: var(--section-pad) var(--side-pad); }
.section-pad-sm { padding: var(--section-pad-sm) var(--side-pad); }

.section--dark {
    background: var(--carbon);
    color: var(--clear);
}
.section--dark p { color: var(--tin); }
.section--dark h2, .section--dark h3 { color: var(--clear); }

.section--tint { background: #F7F8F9; }

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--cobalt);
    margin: 0 0 1rem;
}
.eyebrow--light { color: var(--patina); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.9rem 1.6rem;
    border-radius: 999px;
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
    transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
    border: 1.5px solid transparent;
}
.btn svg { width: 1.1em; height: 1.1em; flex-shrink: 0; }
.btn:hover { transform: translateY(-2px); }

.btn--solid { background: var(--cobalt); color: var(--clear); }
.btn--solid:hover { background: #23458A; }

.btn--outline { border-color: currentColor; color: var(--carbon); }
.section--dark .btn--outline { color: var(--clear); }
.btn--outline:hover { background: rgba(41,82,160,0.08); }
.section--dark .btn--outline:hover { background: rgba(255,255,255,0.08); }

.btn--board { background: var(--board); color: var(--clear); }
.btn--board:hover { background: #1C9673; }

.btn--white { background: var(--clear); color: var(--azurite); }
.btn--white:hover { background: var(--silver); }

.btn--sm { padding: 0.55rem 1.1rem; font-size: 0.85rem; }

/* ============================================================
   Header
   ============================================================ */
.s-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    background: transparent;
    transition: background 0.3s var(--ease), backdrop-filter 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.s-header.is-scrolled {
    background: rgba(41, 44, 57, 0.72);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.header-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 1.15rem var(--side-pad);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.site-logo img { height: 20px; width: auto; }

.header-nav__list {
    display: flex;
    align-items: center;
    gap: 2.25rem;
}
.header-nav__list a {
    color: var(--clear);
    font-size: 0.92rem;
    font-weight: 500;
    opacity: 0.85;
    transition: opacity 0.2s;
}
.header-nav__list a:hover { opacity: 1; }

.has-dropdown { position: relative; }
.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--clear);
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 500;
    line-height: inherit;
    opacity: 0.85;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: opacity 0.2s;
}
.nav-dropdown-toggle:hover { opacity: 1; }
.nav-dropdown-caret { width: 14px; height: 14px; transition: transform 0.2s var(--ease); }
.has-dropdown.is-open .nav-dropdown-caret { transform: rotate(180deg); }

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.9rem);
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    background: var(--azurite);
    border-radius: 12px;
    padding: 0.5rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-6px);
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
    z-index: 95;
}
.has-dropdown.is-open .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu a {
    display: block;
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    color: var(--clear);
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.9;
    transition: opacity 0.2s, background 0.2s;
    white-space: nowrap;
}
.nav-dropdown-menu a:hover { opacity: 1; background: rgba(255, 255, 255, 0.08); }

@media (hover: hover) and (pointer: fine) {
    .has-dropdown:hover .nav-dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }
    .has-dropdown:hover .nav-dropdown-caret { transform: rotate(180deg); }
}

.header-actions { display: flex; align-items: center; gap: 1rem; }

.header-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
}
.header-menu-toggle span {
    display: block;
    height: 2px;
    background: var(--clear);
    border-radius: 2px;
}

@media (max-width: 860px) {
    .header-nav {
        position: fixed;
        inset: 0;
        top: 0;
        background: var(--carbon);
        padding: 6rem var(--side-pad) 2rem;
        transform: translateY(-100%);
        transition: transform 0.35s var(--ease);
        z-index: 90;
    }
    .header-nav.is-open { transform: translateY(0); }
    .header-nav__list { flex-direction: column; align-items: stretch; gap: 1.75rem; }
    .header-nav__list a { font-size: 1.4rem; }
    .header-menu-toggle { display: flex; }
    .btn-text { display: none; }

    .nav-dropdown-toggle { font-size: 1.4rem; }
    .nav-dropdown-menu {
        position: static;
        transform: none;
        visibility: visible;
        opacity: 1;
        box-shadow: none;
        background: none;
        padding: 0.5rem 0 0 1.25rem;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s var(--ease);
    }
    .has-dropdown.is-open .nav-dropdown-menu { max-height: 200px; }
    .nav-dropdown-menu a { font-size: 1.05rem; opacity: 0.75; padding: 0.5rem 0; }
}

/* ============================================================
   Hero
   ============================================================ */
.s-home {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--carbon);
    color: var(--clear);
    overflow: hidden;
    padding: 8rem var(--side-pad) 4rem;
}

.hero-mesh {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(60% 55% at 18% 12%, rgba(41,82,160,0.55), transparent 60%),
        radial-gradient(55% 50% at 85% 20%, rgba(35,54,106,0.65), transparent 65%),
        radial-gradient(70% 60% at 50% 100%, rgba(35,174,134,0.14), transparent 60%),
        var(--carbon);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 780px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-eyebrow { color: var(--patina); }

.hero-tagline {
    font-size: clamp(2.4rem, 5.4vw, 4.2rem);
    margin-bottom: 1.25rem;
}

.hero-sub {
    font-size: clamp(1.05rem, 1.6vw, 1.25rem);
    color: var(--tin);
    max-width: 620px;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}
.hero-actions .btn--outline {
    color: var(--clear);
    border-color: rgba(255,255,255,0.5);
}
.hero-actions .btn--outline:hover {
    background: rgba(255,255,255,0.08);
    border-color: var(--clear);
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--tin);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}
.hero-scroll::after {
    content: '';
    width: 1px;
    height: 28px;
    background: linear-gradient(var(--patina), transparent);
    animation: scrollpulse 2s ease-in-out infinite;
}
@keyframes scrollpulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* ============================================================
   Stats strip
   ============================================================ */
.stats-wrap {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 3fr 1fr;
    align-items: center;
    gap: 2.5rem;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}
.stat { display: flex; flex-direction: column; gap: 0.4rem; }
.stat__num {
    font-family: var(--font-mono);
    font-size: clamp(1.6rem, 2.6vw, 2.2rem);
    font-weight: 500;
    color: var(--cobalt);
}
.stat__label { color: var(--slate); font-size: 0.92rem; max-width: 22ch; }

.stats-map {
    aspect-ratio: 500 / 512.2;
    border-radius: var(--radius-md);
    background: #F7F8F8;
    border: 1px solid var(--silver);
    overflow: hidden;
}
.stats-map__svg { width: 100%; height: 100%; display: block; }
.stats-map__outline { fill: var(--cobalt); stroke: none; }
.map-dot {
    fill: var(--board);
    animation-name: dotBlink;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
}
.map-ping {
    fill: var(--board);
    transform-box: fill-box;
    transform-origin: center;
    opacity: 0;
    animation-name: dotPing;
    animation-timing-function: ease-out;
    animation-iteration-count: infinite;
}
@keyframes dotBlink {
    0%, 100% { opacity: 0.25; }
    50% { opacity: 1; }
}
@keyframes dotPing {
    0% { transform: scale(1); opacity: 0.55; }
    75%, 100% { transform: scale(3.4); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
    .map-dot { animation: none; opacity: 0.85; }
    .map-ping { display: none; }
}

@media (max-width: 900px) {
    .stats-wrap { grid-template-columns: 1fr; }
    .stats-map { max-width: 280px; margin: 0 auto; }
}
@media (max-width: 700px) {
    .stats-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   About
   ============================================================ */
.about-inner {
    max-width: var(--container-max);
    margin: 0 auto;
}
.s-about h2 { max-width: 28ch; }

.about-grid {
    margin-top: 2.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}
.about-card {
    padding: 1.75rem;
    border-radius: var(--radius-md);
    background: rgba(41,54,106,0.05);
    border: 1px solid rgba(41,54,106,0.1);
}
.about-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.about-card p { font-size: 0.92rem; margin: 0; }

/* ============================================================
   Products overview
   ============================================================ */
.s-products-overview .section-header {
    max-width: var(--container-max);
    margin: 0 auto 3.5rem;
}
.s-products-overview h2 { max-width: 20ch; }

.products-nav {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.products-nav__item {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding: 1.75rem;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    transition: transform 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.products-nav__item:hover {
    transform: translateY(-4px);
    background: rgba(255,255,255,0.07);
    border-color: rgba(255,255,255,0.22);
}
.products-nav__item--highlight {
    background: rgba(35,174,134,0.1);
    border-color: rgba(140,203,183,0.35);
}
.products-nav__title {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: var(--clear);
    font-weight: 500;
}
.products-nav__desc { color: var(--tin); font-size: 0.88rem; }

/* ============================================================
   Product detail sections
   ============================================================ */
.product-detail {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2.5rem, 6vw, 5rem);
    align-items: center;
}
.product-detail--reverse .product-detail__media { order: 2; }
.product-detail--reverse .product-detail__body { order: 1; }

.product-detail__media {
    background: rgba(41,82,160,0.05);
    border-radius: var(--radius-lg);
    padding: clamp(1.5rem, 4vw, 3rem);
    display: flex;
    align-items: center;
    justify-content: center;
}
.section--dark .product-detail__media { background: rgba(255,255,255,0.04); }
.product-detail__media img { border-radius: var(--radius-sm); }

.spec-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin: 1.5rem 0 2rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}
.spec-list li {
    padding-left: 1.4rem;
    position: relative;
    color: var(--slate);
}
.section--dark .spec-list li { color: var(--tin); }
.spec-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cobalt);
}
.section--dark .spec-list li::before { background: var(--patina); }

@media (max-width: 860px) {
    .product-detail { grid-template-columns: 1fr; }
    .product-detail--reverse .product-detail__media,
    .product-detail--reverse .product-detail__body { order: initial; }
}

/* ============================================================
   Integrators / cloud CTA
   ============================================================ */
.s-cloud {
    position: relative;
    background: linear-gradient(135deg, var(--cobalt), var(--azurite));
    color: var(--clear);
    overflow: hidden;
}
.cloud-inner {
    position: relative;
    max-width: var(--container-narrow-max);
    margin: 0 auto;
    text-align: center;
}
.cloud-inner .eyebrow { color: var(--patina); }
.cloud-inner h2 { color: var(--clear); }
.cloud-sub { color: rgba(255,255,255,0.82); font-size: 1.05rem; max-width: 50ch; margin: 0 auto 2rem; }

/* ============================================================
   Contact
   ============================================================ */
.s-contact { text-align: center; }
.contact-sub { max-width: 46ch; margin: 0 auto 2rem; }
.contact-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* ============================================================
   Footer
   ============================================================ */
footer {
    background: var(--carbon);
    color: var(--tin);
    padding: 2.5rem var(--side-pad);
}
.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.25rem;
    font-size: 0.88rem;
}
.footer-mark { display: flex; align-items: center; gap: 0.6rem; }
.footer-mark img { height: 20px; width: 20px; opacity: 0.85; }
.footer-nav { display: flex; gap: 1.5rem; }
.footer-nav a { opacity: 0.75; transition: opacity 0.2s; }
.footer-nav a:hover { opacity: 1; }
.footer-top { display: flex; align-items: center; gap: 0.5rem; opacity: 0.75; transition: opacity 0.2s; }
.footer-top:hover { opacity: 1; }
.footer-top svg { width: 1em; height: 1em; }

/* ============================================================
   Blog
   ============================================================ */
.s-blog-hero {
    position: relative;
    background: var(--carbon);
    color: var(--clear);
    overflow: hidden;
    padding: 9.5rem var(--side-pad) 3.5rem;
}
.s-blog-hero .hero-mesh { opacity: 0.85; }
.blog-hero-inner {
    position: relative;
    z-index: 1;
    max-width: var(--container-narrow-max);
    margin: 0 auto;
}
.blog-hero-inner h1 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); max-width: 22ch; }
.blog-hero-sub { color: var(--tin); font-size: 1.05rem; max-width: 56ch; margin: 0; }

.blog-featured-image {
    max-width: var(--container-narrow-max);
    margin: 2.5rem auto 0;
    padding: 0 var(--side-pad);
}
.blog-featured-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    display: block;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.02em;
    color: var(--tin);
    margin-bottom: 1.5rem;
}
.breadcrumb a { color: var(--tin); opacity: 0.85; transition: opacity 0.2s; }
.breadcrumb a:hover { opacity: 1; }
.breadcrumb span[aria-current] { color: var(--patina); }

.blog-grid {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.75rem;
}

.post-card {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    padding: 2rem;
    background: var(--clear);
    border: 1px solid rgba(41,54,106,0.12);
    border-radius: var(--radius-md);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(35,54,106,0.1);
    border-color: rgba(41,82,160,0.25);
}
.post-card__meta {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.03em;
    color: var(--cobalt);
    text-transform: uppercase;
}
.post-card__title { font-size: 1.25rem; margin: 0; }
.post-card__excerpt { color: var(--slate); font-size: 0.95rem; margin: 0; flex-grow: 1; }
.post-card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--cobalt);
}
.post-card__link svg { width: 1em; height: 1em; transition: transform 0.2s var(--ease); }
.post-card:hover .post-card__link svg { transform: translateX(3px); }

/* Article body */
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.1rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--tin);
    margin-bottom: 0;
}

.article-body {
    max-width: var(--container-narrow-max);
    margin: 0 auto;
}
.article-body p { color: var(--slate); font-size: 1.05rem; line-height: 1.8; }
.article-body h2 { font-size: clamp(1.4rem, 2.4vw, 1.85rem); margin-top: 2.75rem; }
.article-body h3 { margin-top: 2rem; }
.article-body ul, .article-body ol {
    list-style: disc;
    padding-left: 1.4rem;
    margin: 0 0 1.25rem;
    color: var(--slate);
}
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 0.5rem; line-height: 1.7; }
.article-body a:not(.btn) { color: var(--cobalt); text-decoration: underline; text-underline-offset: 2px; }
.article-body strong { color: var(--carbon); }
.article-body blockquote {
    margin: 2rem 0;
    padding: 0.25rem 0 0.25rem 1.4rem;
    border-left: 3px solid var(--cobalt);
    color: var(--carbon);
    font-size: 1.1rem;
}
.article-body blockquote p { margin: 0; color: var(--carbon); }

.article-cta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
    margin: 2.75rem 0;
    padding: 1.75rem 2rem;
    background: rgba(41,82,160,0.05);
    border: 1px solid rgba(41,82,160,0.14);
    border-radius: var(--radius-md);
}
.article-cta h3 { margin: 0; font-size: 1.15rem; }
.article-cta p { margin: 0; font-size: 0.95rem; }

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--cobalt);
    margin-bottom: 2rem;
}
.back-link svg { width: 1em; height: 1em; }

/* ============================================================
   Scroll reveal
   ============================================================ */
[data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}