:root {
    --aiot-navy: #08275b;
    --aiot-blue: #1959bd;
    --aiot-bright: #2779e8;
    --aiot-ink: #11223f;
    --aiot-muted: #5d6c83;
    --aiot-gold: #f9bd16;
    --aiot-pale: #eef5ff;
    --aiot-line: #d7e2f1;
    --aiot-white: #ffffff;
    --aiot-shadow: 0 16px 42px rgba(8, 39, 91, .12);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--aiot-ink);
    background: #f7faff;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    line-height: 1.55;
}
body.a11y-large { font-size: 1.08rem; }
body.a11y-contrast { --aiot-ink: #06152d; --aiot-line: #9bb6d5; filter: contrast(1.08); }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 1000; padding: .65rem 1rem; background: var(--aiot-gold); color: #111; font-weight: 900; }
.skip-link:focus { left: 8px; }
.aiot-shell { min-height: 100vh; }
.aiot-topbar {
    position: sticky; top: 0; z-index: 50; display: flex; align-items: center; gap: 1.5rem;
    min-height: 76px; padding: .7rem clamp(1rem, 4vw, 3.5rem); color: #fff;
    background: linear-gradient(105deg, #08275b 0%, #0b347a 54%, #174fa9 100%);
    box-shadow: 0 8px 24px rgba(8, 39, 91, .14);
}
.aiot-brand { display: inline-flex; align-items: center; gap: .7rem; min-width: max-content; text-decoration: none; font-weight: 950; letter-spacing: .01em; }
.aiot-brand-mark { display: grid; place-items: center; width: 54px; height: 46px; border: 4px solid #d8e7ff; border-radius: 13px; background: #fff; color: var(--aiot-navy); font-size: 1rem; box-shadow: 0 0 0 2px rgba(255,255,255,.18); }
.aiot-brand small { display: block; color: #b9d2ff; font-weight: 650; font-size: .72rem; }
.aiot-nav { display: flex; align-items: center; gap: .2rem; flex: 1; }
.aiot-nav a { padding: .65rem .8rem; border-radius: 8px; text-decoration: none; color: #f4f8ff; font-weight: 650; transition: background .2s ease, transform .2s ease; }
.aiot-nav a:hover, .aiot-nav a:focus-visible { background: rgba(255,255,255,.13); transform: translateY(-1px); outline: none; }
.aiot-actions { display: flex; align-items: center; gap: .55rem; }
.aiot-icon-button, .aiot-menu-button { border: 1px solid rgba(255,255,255,.38); border-radius: 8px; color: #fff; background: transparent; cursor: pointer; }
.aiot-icon-button { min-height: 38px; padding: .45rem .65rem; }
.aiot-menu-button { display: none; padding: .55rem .7rem; font-size: 1.2rem; }
.aiot-button { display: inline-flex; align-items: center; justify-content: center; gap: .45rem; min-height: 44px; padding: .72rem 1.05rem; border: 1px solid transparent; border-radius: 8px; color: #fff; background: var(--aiot-blue); text-decoration: none; font-weight: 850; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.aiot-button:hover, .aiot-button:focus-visible { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(12, 66, 151, .2); outline: none; }
.aiot-button.gold { background: var(--aiot-gold); color: #111c32; }
.aiot-button.outline { border-color: currentColor; background: transparent; color: var(--aiot-navy); }
.aiot-topbar .aiot-button.outline { color: #fff; border-color: rgba(255,255,255,.5); }
.aiot-topbar .aiot-button.gold { color: #111; }
.aiot-main { overflow: hidden; }
.aiot-hero { padding: clamp(3.5rem, 8vw, 7rem) clamp(1rem, 5vw, 4.5rem) 3.5rem; color: #fff; background: linear-gradient(115deg, #0a2f72 0%, #1559ba 58%, #2676e3 100%); }
.aiot-hero-inner { max-width: 1240px; margin: 0 auto; }
.aiot-eyebrow { display: inline-block; color: #b9d2ff; font-size: .82rem; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; }
.aiot-hero h1 { max-width: 1080px; margin: .55rem 0 1rem; font-size: clamp(2.4rem, 5.2vw, 5.5rem); line-height: .98; letter-spacing: 0; }
.aiot-hero h1 span { color: #f8c541; }
.aiot-hero p { max-width: 850px; color: #e0ecff; font-size: clamp(1.03rem, 1.8vw, 1.3rem); }
.aiot-search { display: flex; max-width: 760px; margin: 1.7rem 0 1rem; padding: .35rem; border-radius: 10px; background: #fff; box-shadow: 0 12px 30px rgba(3, 26, 70, .2); }
.aiot-search input { min-width: 0; flex: 1; padding: .7rem .85rem; border: 0; outline: 0; color: var(--aiot-ink); background: transparent; }
.aiot-search button { border: 0; border-radius: 7px; padding: .7rem 1rem; background: var(--aiot-navy); color: #fff; font-weight: 850; cursor: pointer; }
.aiot-hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }
.aiot-hero .aiot-button.outline { color: #fff; border-color: rgba(255,255,255,.6); }
.aiot-helper { color: #c7ddff; font-size: .92rem; }
.aiot-section { max-width: 1240px; margin: 0 auto; padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 3vw, 2rem); }
.aiot-section-head { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 1.5rem; }
.aiot-section h2 { margin: .25rem 0 .4rem; color: var(--aiot-navy); font-size: clamp(1.8rem, 3vw, 2.7rem); line-height: 1.08; }
.aiot-section-head p { max-width: 720px; margin: 0; color: var(--aiot-muted); }
.aiot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.aiot-card { position: relative; padding: 1.25rem; border: 1px solid var(--aiot-line); border-radius: 8px; background: #fff; box-shadow: 0 7px 20px rgba(8,39,91,.05); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.aiot-card:hover { transform: translateY(-4px); border-color: #9fc1f4; box-shadow: var(--aiot-shadow); }
.aiot-card h3 { margin: .45rem 0 .55rem; color: var(--aiot-navy); line-height: 1.15; }
.aiot-card p { color: var(--aiot-muted); }
.aiot-card .aiot-button { margin-top: .6rem; }
.aiot-chip { display: inline-flex; padding: .28rem .55rem; border-radius: 999px; background: var(--aiot-pale); color: var(--aiot-blue); font-size: .78rem; font-weight: 850; }
.aiot-card-media { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 6px; background: #dce9fb; }
.aiot-promo { display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.4rem; align-items: center; padding: 1.25rem; border-radius: 10px; color: #fff; background: linear-gradient(120deg, #08275b, #1762c9); box-shadow: var(--aiot-shadow); }
.aiot-promo h2 { color: #fff; }
.aiot-promo p { color: #dbeaff; }
.aiot-promo img { width: 100%; display: block; border-radius: 7px; border: 1px solid rgba(255,255,255,.45); }
.aiot-band { background: #edf4ff; border-block: 1px solid #d9e8fb; }
.aiot-mode { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .8rem; }
.aiot-mode article { padding: 1rem; border-left: 4px solid var(--aiot-gold); background: #fff; }
.aiot-mode strong { color: var(--aiot-navy); }
.aiot-mode span { display: block; margin-top: .35rem; color: var(--aiot-muted); font-size: .92rem; }
.aiot-ecosystem { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; padding-top: 1rem; border-top: 1px solid var(--aiot-line); color: var(--aiot-muted); }
.aiot-ecosystem a { padding: .45rem .7rem; border: 1px solid var(--aiot-line); border-radius: 7px; background: #fff; text-decoration: none; font-weight: 750; }
.aiot-footer { padding: 2rem clamp(1rem, 4vw, 3.5rem); color: #dbeaff; background: var(--aiot-navy); }
.aiot-newsletter { display: grid; grid-template-columns: 1fr minmax(260px, 420px); gap: 1rem; align-items: center; padding: 1.2rem; border: 1px solid #9ec3f3; border-radius: 8px; background: linear-gradient(110deg, #eaf3ff, #fff); }
.aiot-newsletter h3 { margin: 0 0 .35rem; color: var(--aiot-navy); }
.aiot-newsletter p { margin: 0; color: var(--aiot-muted); }
.aiot-newsletter form { display: flex; gap: .5rem; }
.aiot-newsletter input { min-width: 0; flex: 1; padding: .75rem; border: 1px solid #aac4e4; border-radius: 7px; }
.aiot-toast-region { position: fixed; right: 1rem; bottom: 1rem; z-index: 90; display: grid; gap: .6rem; width: min(360px, calc(100vw - 2rem)); pointer-events: none; }
.aiot-toast { padding: .8rem .95rem; border: 1px solid rgba(255,255,255,.25); border-left: 4px solid var(--aiot-gold); border-radius: 8px; color: #fff; background: rgba(8,39,91,.96); box-shadow: 0 12px 28px rgba(8,39,91,.25); font-size: .92rem; font-weight: 700; opacity: 0; transform: translateY(8px); transition: opacity .22s ease, transform .22s ease; }
.aiot-toast.is-visible { opacity: 1; transform: translateY(0); }
.aiot-footer-inner { max-width: 1240px; margin: auto; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.aiot-footer a { color: #fff; }
.aiot-breadcrumb { max-width: 1240px; margin: 0 auto; padding: 1rem clamp(1rem, 3vw, 2rem) 0; color: var(--aiot-muted); font-size: .9rem; }
.aiot-form-page { min-height: 100vh; padding: 2rem 1rem 4rem; background: linear-gradient(180deg, #edf4ff 0%, #f9fbff 36%); }
.aiot-form-shell { max-width: 900px; margin: auto; padding: clamp(1.25rem, 4vw, 2.5rem); border: 1px solid var(--aiot-line); border-radius: 10px; background: #fff; box-shadow: var(--aiot-shadow); }
.aiot-progress { display: grid; grid-template-columns: repeat(3, 1fr); gap: .35rem; margin: 1.5rem 0 2rem; }
.aiot-progress-step { position: relative; padding: .7rem .5rem; border-bottom: 4px solid #cad8eb; color: var(--aiot-muted); font-size: .82rem; font-weight: 850; text-align: center; }
.aiot-progress-step.is-active, .aiot-progress-step.is-complete { border-color: var(--aiot-blue); color: var(--aiot-navy); }
.aiot-progress-step.is-complete { border-color: var(--aiot-gold); }
.aiot-step { display: none; animation: aiot-rise .24s ease both; }
.aiot-step.is-active { display: block; }
.aiot-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.aiot-field { display: grid; gap: .35rem; }
.aiot-field.full { grid-column: 1 / -1; }
.aiot-field label, .aiot-check { color: var(--aiot-ink); font-weight: 750; }
.aiot-field input, .aiot-field select, .aiot-field textarea { width: 100%; padding: .78rem .85rem; border: 1px solid #b9c9df; border-radius: 7px; background: #fff; color: var(--aiot-ink); }
.aiot-field textarea { min-height: 110px; resize: vertical; }
.aiot-field :focus-visible, .aiot-check input:focus-visible { outline: 3px solid rgba(39,121,232,.3); border-color: var(--aiot-blue); }
.aiot-check { display: flex; align-items: flex-start; gap: .6rem; grid-column: 1 / -1; }
.aiot-check input { margin-top: .35rem; accent-color: var(--aiot-blue); }
.aiot-form-actions { display: flex; justify-content: space-between; gap: .8rem; margin-top: 1.4rem; }
.aiot-error, .aiot-success, .aiot-note { padding: .85rem 1rem; border-radius: 7px; margin: 1rem 0; }
.aiot-error { border-left: 4px solid #c62828; background: #fff1f1; color: #8d1b1b; }
.aiot-success { border-left: 4px solid #16824b; background: #effbf4; color: #12633c; }
.aiot-note { border-left: 4px solid var(--aiot-gold); background: #fff9e8; color: #5c4b12; }
.aiot-hidden { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
@keyframes aiot-rise { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; } }
@media (max-width: 980px) { .aiot-nav { display: none; position: absolute; left: 1rem; right: 1rem; top: 70px; padding: .6rem; border-radius: 8px; background: var(--aiot-navy); box-shadow: var(--aiot-shadow); } .aiot-nav.is-open { display: grid; } .aiot-menu-button { display: inline-flex; } .aiot-topbar { gap: .7rem; } .aiot-actions { margin-left: auto; } .aiot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .aiot-mode { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 700px) { .aiot-promo { grid-template-columns: 1fr; } .aiot-grid { grid-template-columns: 1fr; } .aiot-section-head { display: block; } .aiot-form-grid { grid-template-columns: 1fr; } .aiot-field.full, .aiot-check { grid-column: auto; } .aiot-newsletter { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .aiot-topbar { min-height: 68px; } .aiot-brand small { display: none; } .aiot-actions .aiot-button.outline { display: none; } .aiot-hero { padding-top: 3rem; } .aiot-hero h1 { font-size: 2.7rem; } .aiot-search { max-width: 100%; } .aiot-search button { padding-inline: .75rem; } .aiot-mode { grid-template-columns: 1fr; } .aiot-form-actions { flex-direction: column-reverse; } .aiot-form-actions .aiot-button { width: 100%; } .aiot-newsletter form { display: grid; } }