:root {
    --navy-950: #061827;
    --navy-900: #0a2540;
    --navy-800: #123c5a;
    --blue-600: #0f6cbd;
    --blue-500: #1683d8;
    --blue-100: #e9f5ff;
    --cyan-400: #38bdf8;
    --green-500: #16a36a;
    --red-600: #c83f49;
    --ink-900: #172230;
    --ink-700: #405165;
    --ink-500: #6b7b8e;
    --line: #dce5ed;
    --surface: #ffffff;
    --surface-soft: #f4f8fb;
    --shadow: 0 18px 55px rgba(6, 24, 39, 0.10);
    --radius-lg: 22px;
    --radius-md: 15px;
    --container: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink-900);
    background: var(--surface);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--blue-600);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

a:hover {
    color: var(--navy-900);
}

img {
    max-width: 100%;
}

address {
    font-style: normal;
}

.container {
    width: min(calc(100% - 40px), var(--container));
    margin-inline: auto;
}

.narrow {
    max-width: 820px;
}

.skip-link {
    position: fixed;
    left: 16px;
    top: -80px;
    z-index: 1000;
    padding: 10px 16px;
    color: #fff;
    background: var(--navy-950);
    border-radius: 8px;
}

.skip-link:focus {
    top: 16px;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid rgba(220, 229, 237, 0.85);
    backdrop-filter: blur(14px);
}

.header-inner {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--navy-950);
    text-decoration: none;
}

.brand img {
    flex: 0 0 auto;
}

.brand span {
    display: grid;
    line-height: 1.15;
}

.brand strong {
    font-size: 1.08rem;
    letter-spacing: -0.02em;
}

.brand small {
    margin-top: 4px;
    color: var(--ink-500);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.primary-navigation {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    padding: 10px 13px;
    color: var(--ink-700);
    border-radius: 9px;
    font-size: 0.94rem;
    font-weight: 650;
    text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
    color: var(--navy-900);
    background: var(--blue-100);
}

.nav-toggle {
    display: none;
    width: 43px;
    height: 43px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
}

.nav-toggle span:not(.visually-hidden) {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: var(--navy-900);
    border-radius: 999px;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 92px 0 96px;
    color: #fff;
    background:
        radial-gradient(circle at 82% 20%, rgba(56, 189, 248, 0.28), transparent 29%),
        radial-gradient(circle at 15% 90%, rgba(22, 131, 216, 0.28), transparent 28%),
        linear-gradient(135deg, var(--navy-950), var(--navy-900) 58%, #0a3655);
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.19;
    background-image:
        linear-gradient(rgba(255,255,255,.14) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.14) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(to right, transparent, #000 55%, #000);
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(330px, .65fr);
    gap: 68px;
    align-items: center;
}

.eyebrow,
.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--cyan-400);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.eyebrow span {
    width: 24px;
    height: 2px;
    background: var(--cyan-400);
}

.hero h1,
.page-hero h1,
.not-found h1 {
    margin: 18px 0 22px;
    font-size: clamp(2.75rem, 6.4vw, 5.6rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.hero h1 {
    max-width: 760px;
}

.hero-lead {
    max-width: 740px;
    margin: 0;
    color: rgba(255,255,255,.79);
    font-size: clamp(1.05rem, 2vw, 1.22rem);
}

.hero-actions,
.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border: 1px solid transparent;
    border-radius: 11px;
    font-weight: 750;
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease;
}

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

.button-primary {
    color: #fff;
    background: var(--blue-600);
    box-shadow: 0 10px 25px rgba(15, 108, 189, .26);
}

.button-primary:hover {
    color: #fff;
    background: #0b5fa8;
}

.button-secondary {
    color: #fff;
    border-color: rgba(255,255,255,.32);
    background: rgba(255,255,255,.08);
}

.button-secondary:hover {
    color: #fff;
    background: rgba(255,255,255,.15);
}

.button-danger {
    color: #fff;
    background: var(--red-600);
}

.button-danger:hover {
    color: #fff;
    background: #ab303a;
}

.button-light {
    color: var(--navy-950);
    background: #fff;
}

.button-outline-light {
    color: #fff;
    border-color: rgba(255,255,255,.5);
    background: transparent;
}

.button-outline-light:hover {
    color: var(--navy-950);
    background: #fff;
}

.full-width {
    width: 100%;
}

.identity-card {
    overflow: hidden;
    color: var(--ink-900);
    background: rgba(255,255,255,.97);
    border: 1px solid rgba(255,255,255,.5);
    border-radius: var(--radius-lg);
    box-shadow: 0 28px 70px rgba(0,0,0,.22);
}

.identity-head,
.details-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 18px 22px;
    border-bottom: 1px solid var(--line);
    font-size: .85rem;
    font-weight: 800;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.status-dot {
    display: inline-block;
    width: 9px;
    height: 9px;
    margin-right: 8px;
    background: var(--green-500);
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(22,163,106,.12);
}

.identity-list,
.technical-table {
    margin: 0;
}

.identity-list div {
    padding: 15px 22px;
    border-bottom: 1px solid var(--line);
}

.identity-list dt,
.technical-table dt {
    color: var(--ink-500);
    font-size: .75rem;
    font-weight: 750;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.identity-list dd,
.technical-table dd {
    margin: 4px 0 0;
    overflow-wrap: anywhere;
    font-weight: 750;
}

.identity-link {
    display: flex;
    justify-content: space-between;
    padding: 18px 22px;
    color: var(--navy-900);
    font-weight: 800;
    text-decoration: none;
}

.section {
    padding: 86px 0;
}

.section-muted {
    background: var(--surface-soft);
}

.section-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, .6fr);
    gap: 70px;
    align-items: end;
    margin-bottom: 38px;
}

.section-heading.compact {
    grid-template-columns: 1fr;
}

.section-heading h2,
.split-panel h2,
.contact-band h2,
.trace-box h2,
.content-box h2 {
    margin: 9px 0 0;
    font-size: clamp(2rem, 4vw, 3.15rem);
    line-height: 1.08;
    letter-spacing: -0.04em;
}

.section-heading p,
.split-panel p {
    margin: 0;
    color: var(--ink-700);
    font-size: 1.05rem;
}

.feature-grid,
.principle-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.feature-card,
.principle-grid article,
.contact-card,
.details-card,
.side-note,
.content-box {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.feature-card {
    min-height: 285px;
    padding: 28px;
}

.feature-card-direct {
    border-color: rgba(15, 108, 189, .32);
    box-shadow: 0 12px 30px rgba(15, 108, 189, .08);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    margin-bottom: 52px;
    color: var(--blue-600);
    background: var(--blue-100);
    border-radius: 12px;
    font-weight: 900;
}

.feature-card h3,
.principle-grid h3,
.contact-card h2 {
    margin: 0 0 10px;
    font-size: 1.22rem;
    letter-spacing: -0.02em;
}

.feature-card p,
.principle-grid p,
.contact-card p {
    margin: 0;
    color: var(--ink-700);
}

.split-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
    gap: 75px;
    align-items: center;
}

.split-panel p {
    margin-top: 20px;
}

.check-list {
    margin: 0;
    padding: 0;
    list-style: none;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.check-list li {
    position: relative;
    padding: 18px 22px 18px 54px;
    border-bottom: 1px solid var(--line);
    font-weight: 700;
}

.check-list li:last-child {
    border-bottom: 0;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 21px;
    color: var(--green-500);
    font-weight: 900;
}

.contact-band {
    padding: 62px 0;
    color: #fff;
    background: linear-gradient(120deg, var(--blue-600), var(--navy-900));
}

.contact-band .section-kicker {
    color: #bfe8ff;
}

.contact-band-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.contact-band h2 {
    max-width: 650px;
}

.contact-actions {
    margin-top: 0;
    flex: 0 0 auto;
}

.page-hero {
    padding: 88px 0 72px;
    color: #fff;
    background:
        radial-gradient(circle at 75% 20%, rgba(56,189,248,.2), transparent 25%),
        linear-gradient(135deg, var(--navy-950), var(--navy-900));
}

.page-hero h1 {
    margin-bottom: 18px;
    font-size: clamp(2.6rem, 6vw, 4.8rem);
}

.page-hero p {
    max-width: 760px;
    margin: 0;
    color: rgba(255,255,255,.76);
    font-size: 1.1rem;
}

.details-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    align-items: start;
}

.details-card {
    overflow: hidden;
    box-shadow: var(--shadow);
}

.details-card-head {
    padding: 21px 25px;
}

.pill {
    padding: 5px 10px;
    color: var(--blue-600);
    background: var(--blue-100);
    border-radius: 999px;
    font-size: .72rem;
}

.technical-table div {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 28px;
    padding: 19px 25px;
    border-bottom: 1px solid var(--line);
}

.technical-table div:last-child {
    border-bottom: 0;
}

.side-note {
    padding: 25px;
}

.side-note h2 {
    margin-top: 0;
    font-size: 1.15rem;
}

.side-note address {
    margin: 14px 0 20px;
    color: var(--ink-700);
}

.text-link {
    font-weight: 800;
    text-decoration: none;
}

.principle-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.principle-grid article {
    padding: 25px;
}

.trace-box {
    padding: 34px;
    background: var(--navy-950);
    border-radius: var(--radius-lg);
    color: #fff;
}

.trace-box h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.trace-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 11px;
    margin-top: 26px;
}

.trace-flow span {
    padding: 11px 14px;
    background: rgba(255,255,255,.09);
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 9px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: .91rem;
}

.trace-flow b {
    color: var(--cyan-400);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr 1fr;
    gap: 20px;
}

.contact-grid-spaced {
    margin-top: 20px;
}

.emergency-contact {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 36px;
    align-items: center;
    padding: clamp(26px, 4vw, 42px);
    color: #fff;
    background: linear-gradient(135deg, var(--navy-950), var(--blue-600));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.emergency-contact .card-label {
    margin-bottom: 12px;
    color: #bfe8ff;
}

.emergency-contact h2 {
    margin: 0 0 8px;
    font-size: clamp(1.7rem, 3vw, 2.5rem);
    line-height: 1.1;
    letter-spacing: -.035em;
}

.emergency-contact p {
    max-width: 720px;
    margin: 0;
    color: rgba(255,255,255,.78);
}

.emergency-phone {
    min-width: 260px;
    padding: 18px 22px;
    color: var(--navy-950);
    background: #fff;
    border-radius: 13px;
    text-decoration: none;
    box-shadow: 0 12px 30px rgba(0,0,0,.16);
}

.emergency-phone:hover {
    color: var(--blue-600);
}

.emergency-phone span {
    display: block;
    color: var(--ink-500);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.emergency-phone strong {
    display: block;
    margin-top: 3px;
    font-size: 1.25rem;
    overflow-wrap: anywhere;
}

.contact-card {
    padding: 28px;
}

.contact-card-primary {
    color: #fff;
    background: linear-gradient(145deg, var(--navy-950), var(--navy-800));
    border-color: transparent;
}

.contact-card-primary p,
.contact-card-primary address {
    color: rgba(255,255,255,.74);
}

.contact-card address {
    margin: 20px 0;
    font-size: 1.08rem;
}

.card-label {
    display: block;
    margin-bottom: 28px;
    color: var(--blue-500);
    font-size: .74rem;
    font-weight: 850;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.contact-card-primary .card-label {
    color: var(--cyan-400);
}

.contact-card .button {
    margin-top: 24px;
}

.content-box {
    padding: clamp(28px, 5vw, 56px);
}

.content-box p {
    max-width: 900px;
    margin-bottom: 0;
    color: var(--ink-700);
}

.legal-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 62px;
    align-items: start;
}

.legal-nav {
    position: sticky;
    top: 108px;
    display: grid;
    padding: 22px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.legal-nav strong {
    margin-bottom: 12px;
}

.legal-nav a {
    padding: 8px 0;
    color: var(--ink-700);
    text-decoration: none;
}

.legal-nav a:hover {
    color: var(--blue-600);
}

.legal-content {
    max-width: 810px;
}

.legal-content section {
    scroll-margin-top: 110px;
    padding-bottom: 38px;
    margin-bottom: 38px;
    border-bottom: 1px solid var(--line);
}

.legal-content section:last-child {
    border-bottom: 0;
}

.legal-content h2 {
    margin: 0 0 14px;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}

.legal-content p,
.legal-content li,
.legal-content address {
    color: var(--ink-700);
}

.not-found {
    min-height: 68vh;
    display: grid;
    place-items: center;
    padding: 90px 0;
    text-align: center;
}

.error-code {
    color: var(--blue-600);
    font-size: 1rem;
    font-weight: 900;
    letter-spacing: .2em;
}

.not-found h1 {
    color: var(--navy-950);
    font-size: clamp(2.7rem, 7vw, 5.5rem);
}

.not-found p {
    margin-bottom: 30px;
    color: var(--ink-700);
}

.site-footer {
    padding: 62px 0 24px;
    color: rgba(255,255,255,.7);
    background: var(--navy-950);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 50px;
}

.footer-brand {
    color: #fff;
    font-size: 1.32rem;
    font-weight: 850;
}

.footer-grid p {
    max-width: 420px;
}

.footer-grid h2 {
    margin: 0 0 13px;
    color: #fff;
    font-size: .83rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.footer-grid a {
    display: block;
    width: fit-content;
    margin: 8px 0;
    color: rgba(255,255,255,.72);
    text-decoration: none;
}

.footer-grid a:hover {
    color: #fff;
}

.footer-grid .footer-phone {
    color: #fff;
    font-size: 1.05rem;
    font-weight: 800;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding-top: 25px;
    margin-top: 42px;
    border-top: 1px solid rgba(255,255,255,.1);
    font-size: .84rem;
}

@media (max-width: 980px) {
    .hero-grid,
    .split-panel,
    .details-layout,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .identity-card {
        max-width: 600px;
    }

    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .principle-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .contact-card-primary {
        grid-column: 1 / -1;
    }
}

@media (max-width: 860px) {
    .nav-toggle {
        display: block;
    }

    .primary-navigation {
        position: absolute;
        top: 68px;
        left: 20px;
        right: 20px;
        display: none;
        align-items: stretch;
        padding: 10px;
        background: #fff;
        border: 1px solid var(--line);
        border-radius: 14px;
        box-shadow: var(--shadow);
    }

    .primary-navigation.is-open {
        display: grid;
    }

    .nav-link {
        padding: 13px;
    }

    .section-heading,
    .contact-band-inner,
    .legal-layout {
        grid-template-columns: 1fr;
        display: grid;
        gap: 28px;
    }

    .contact-actions {
        justify-content: start;
    }

    .legal-nav {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0 16px;
    }

    .legal-nav strong {
        grid-column: 1 / -1;
    }


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

    .emergency-phone {
        width: 100%;
        min-width: 0;
    }
}

@media (max-width: 680px) {
    .container {
        width: min(calc(100% - 28px), var(--container));
    }

    .hero,
    .page-hero {
        padding: 70px 0;
    }

    .hero-grid {
        gap: 45px;
    }

    .hero h1 {
        font-size: clamp(2.65rem, 15vw, 4.2rem);
    }

    .section {
        padding: 66px 0;
    }

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

    .feature-card {
        min-height: auto;
    }

    .feature-icon {
        margin-bottom: 30px;
    }

    .technical-table div {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .trace-flow {
        align-items: stretch;
        flex-direction: column;
    }

    .trace-flow b {
        transform: rotate(90deg);
        align-self: center;
    }

    .footer-bottom {
        flex-direction: column;
    }

    .legal-nav {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}