:root {
    --black: #0b0f14;
    --ink: #111820;
    --ink-2: #26313d;
    --paper: #f6f4ef;
    --paper-2: #ebe6dc;
    --white: #ffffff;
    --blue: #174f90;
    --blue-2: #0f3b70;
    --gold: #b88a43;
    --line-dark: rgba(255, 255, 255, 0.18);
    --line-light: rgba(17, 24, 32, 0.16);
    --muted-dark: rgba(255, 255, 255, 0.72);
    --muted-light: #657180;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--paper);
    color: var(--ink);
    font-family: "Inter", Arial, sans-serif;
    line-height: 1.45;
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

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

button,
input,
select,
textarea {
    font: inherit;
}

.cursor-glow {
    display: none;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 80;
    width: 0%;
    height: 3px;
    background: var(--blue);
}

.container {
    width: min(1200px, calc(100% - 48px));
    margin: 0 auto;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 60;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: stretch;
    width: 100%;
    min-height: 74px;
    border-bottom: 1px solid var(--line-dark);
    background: rgba(11, 15, 20, 0.94);
    backdrop-filter: blur(14px);
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 340px;
    padding: 12px 28px;
    border-right: 1px solid var(--line-dark);
    color: var(--white);
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border: 2px solid var(--white);
    background:
        radial-gradient(circle, var(--paper) 0 22%, transparent 24%),
        repeating-conic-gradient(from 0deg, var(--white) 0deg 8deg, #151d26 8deg 17deg);
    color: var(--black);
    font-size: 0.72rem;
    font-weight: 900;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 1rem;
    font-weight: 900;
}

.brand small {
    color: var(--muted-dark);
    font-size: 0.76rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    justify-content: flex-end;
    align-items: stretch;
}

.nav-links a {
    display: flex;
    align-items: center;
    min-width: 112px;
    padding: 0 20px;
    border-left: 1px solid var(--line-dark);
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.9rem;
    font-weight: 800;
}

.nav-links a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
}

.nav-links .nav-call {
    justify-content: center;
    background: var(--blue);
    color: var(--white);
}

.menu-toggle {
    display: none;
    justify-self: end;
    width: 74px;
    height: 74px;
    border: 0;
    border-left: 1px solid var(--line-dark);
    background: transparent;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    margin: 6px auto;
    background: var(--white);
}

.chapter-rail {
    position: fixed;
    top: 50%;
    left: 18px;
    z-index: 30;
    display: grid;
    border: 1px solid var(--line-dark);
    background: rgba(11, 15, 20, 0.8);
    transform: translateY(-50%);
}

.chapter-rail span,
.chapter-rail a {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-bottom: 1px solid var(--line-dark);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.72rem;
    font-weight: 900;
}

.chapter-rail a:last-child {
    border-bottom: 0;
}

.chapter-rail span {
    color: var(--gold);
}

.section-dark {
    background: var(--black);
    color: var(--white);
}

.section-light {
    background: var(--paper);
    color: var(--ink);
}

.hero {
    position: relative;
    min-height: 820px;
    overflow: hidden;
    padding: 150px 0 0;
}

.hero-image {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(11, 15, 20, 0.94) 0%, rgba(11, 15, 20, 0.8) 46%, rgba(11, 15, 20, 0.38) 100%),
        linear-gradient(0deg, rgba(11, 15, 20, 0.98), rgba(11, 15, 20, 0) 36%),
        url("https://images.unsplash.com/photo-1607860108855-64acf2078ed9?auto=format&fit=crop&w=1900&q=82") center / cover;
}

.hero-noise {
    position: absolute;
    inset: 0;
    opacity: 0.18;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 72px 72px;
}

.hero-giant {
    display: none;
}

.hero-layout {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 390px;
    gap: 54px;
    align-items: end;
    min-height: 590px;
    padding-bottom: 72px;
}

.eyebrow {
    color: var(--gold);
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    letter-spacing: 0;
    line-height: 1;
}

h1 {
    max-width: 760px;
    margin-top: 18px;
    font-size: clamp(3.8rem, 8vw, 7.6rem);
    font-weight: 900;
}

.hero-lede {
    max-width: 690px;
    margin-top: 26px;
    color: var(--muted-dark);
    font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

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

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    border: 1px solid transparent;
    padding: 0 22px;
    font-weight: 900;
    transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button-primary {
    background: var(--blue);
    color: var(--white);
}

.button-primary:hover {
    background: var(--blue-2);
}

.button-ghost {
    border-color: var(--line-dark);
    background: rgba(255, 255, 255, 0.06);
    color: var(--white);
}

.button-dark {
    background: var(--black);
    color: var(--white);
}

.hero-data {
    display: grid;
    border: 1px solid var(--line-dark);
    background: rgba(11, 15, 20, 0.76);
    backdrop-filter: blur(12px);
}

.hero-data div {
    min-height: 118px;
    padding: 22px;
    border-bottom: 1px solid var(--line-dark);
}

.hero-data div:last-child {
    border-bottom: 0;
}

.hero-data span,
.section-kicker p,
.section-kicker span,
.capability-grid span,
.process-list span {
    color: var(--gold);
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.hero-data strong {
    display: block;
    margin-top: 12px;
    font-size: clamp(1.55rem, 3vw, 3.4rem);
    font-weight: 900;
    line-height: 0.96;
}

.ticker {
    position: relative;
    z-index: 2;
    overflow: hidden;
    border-top: 1px solid var(--line-dark);
    border-bottom: 1px solid var(--line-dark);
    background: rgba(11, 15, 20, 0.86);
}

.ticker div {
    display: flex;
    width: max-content;
    animation: ticker 36s linear infinite;
}

.ticker span {
    padding: 16px 34px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.84rem;
    font-weight: 900;
    text-transform: uppercase;
}

@keyframes ticker {
    to {
        transform: translateX(-50%);
    }
}

.standard,
.pricing,
.questions {
    padding: 96px 0;
}

.standard-grid {
    display: grid;
    grid-template-columns: 130px minmax(0, 0.9fr) minmax(340px, 0.82fr);
    gap: 36px;
    align-items: start;
}

.section-kicker {
    position: sticky;
    top: 104px;
    display: grid;
    gap: 10px;
}

.section-kicker span {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border: 1px solid var(--line-light);
}

.standard-copy h2,
.process-sticky h2,
.pricing-head h2,
.coverage h2,
.booking h2 {
    font-size: clamp(2.4rem, 5vw, 5rem);
    font-weight: 900;
}

.standard-copy p,
.coverage p,
.booking p {
    max-width: 680px;
    margin-top: 22px;
    color: var(--muted-light);
    font-size: 1.08rem;
}

.tire-stage {
    position: sticky;
    top: 104px;
    min-height: 460px;
    border: 1px solid var(--line-light);
    overflow: hidden;
    background:
        linear-gradient(145deg, #faf8f2, #ded5c6);
}

.rack-lines {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, transparent 0 18%, rgba(17, 24, 32, 0.18) 18% 18.6%, transparent 18.6% 50%, rgba(17, 24, 32, 0.18) 50% 50.6%, transparent 50.6% 82%, rgba(17, 24, 32, 0.18) 82% 82.6%, transparent 82.6%),
        linear-gradient(rgba(17, 24, 32, 0.12) 1px, transparent 1px);
    background-size: 100% 100%, 100% 86px;
}

.tire-stack {
    position: absolute;
    width: 210px;
    height: 210px;
    border-radius: 50%;
    background:
        radial-gradient(circle, var(--paper) 0 18%, #1b2129 19% 36%, #060709 37% 58%, #27303a 59% 63%, #050608 64%),
        repeating-conic-gradient(from 0deg, #050608 0deg 7deg, #2e3742 7deg 13deg);
    box-shadow: 0 28px 70px rgba(17, 24, 32, 0.3);
}

.tire-stack::before,
.tire-stack::after {
    content: "";
    position: absolute;
    inset: 16px;
    border-radius: 50%;
    border: 12px solid rgba(255, 255, 255, 0.08);
}

.stack-one {
    right: 8%;
    bottom: 24%;
}

.stack-two {
    left: 8%;
    bottom: 13%;
    transform: scale(0.76);
}

.scan-card {
    position: absolute;
    top: 24px;
    left: 24px;
    width: 210px;
    border: 1px solid var(--line-light);
    padding: 16px;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(12px);
}

.scan-card span {
    color: var(--blue);
    font-size: 0.74rem;
    font-weight: 900;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.scan-card strong {
    display: block;
    margin-top: 8px;
    font-size: 1.6rem;
}

.scan-card p {
    margin-top: 8px;
    color: var(--muted-light);
    font-weight: 800;
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 70px;
    border-top: 1px solid var(--line-light);
    border-left: 1px solid var(--line-light);
}

.capability-grid article {
    min-height: 280px;
    padding: 28px;
    border-right: 1px solid var(--line-light);
    border-bottom: 1px solid var(--line-light);
    background: var(--paper);
}

.capability-grid h3 {
    margin-top: 74px;
    font-size: 1.55rem;
}

.capability-grid p {
    margin-top: 12px;
    color: var(--muted-light);
}

.process {
    padding: 102px 0;
}

.process-layout {
    display: grid;
    grid-template-columns: 0.72fr 1.28fr;
    gap: 70px;
}

.process-sticky {
    position: sticky;
    top: 104px;
    align-self: start;
}

.process-sticky h2 {
    margin-top: 16px;
}

.process-sticky .button {
    margin-top: 28px;
}

.process-list {
    display: grid;
    border-top: 1px solid var(--line-dark);
}

.process-list article {
    display: grid;
    grid-template-columns: 92px 0.78fr 1fr;
    gap: 28px;
    align-items: start;
    min-height: 170px;
    border-bottom: 1px solid var(--line-dark);
    padding: 26px 0;
}

.process-list h3 {
    font-size: 1.75rem;
}

.process-list p {
    color: var(--muted-dark);
    font-size: 1rem;
}

.pricing-head {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 36px;
    align-items: start;
}

.price-slab-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 56px;
}

.price-slab {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 560px;
    border: 1px solid var(--line-light);
    padding: 30px;
    overflow: hidden;
    background: var(--white);
}

.price-slab.primary {
    border-top: 5px solid var(--blue);
}

.price-slab::after {
    content: "";
    position: absolute;
    right: -80px;
    bottom: -90px;
    width: 270px;
    height: 270px;
    border: 24px solid rgba(17, 24, 32, 0.07);
    border-radius: 50%;
}

.plan-top {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
}

.plan-top span {
    color: var(--blue);
    font-size: 0.84rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.plan-top strong {
    font-size: clamp(3.6rem, 8vw, 7rem);
    font-weight: 900;
    line-height: 0.86;
}

.price-slab p {
    position: relative;
    z-index: 1;
    max-width: 420px;
    margin-top: 38px;
    color: var(--muted-light);
    font-size: 1.05rem;
}

.price-slab ul {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 14px;
    margin: 42px 0;
    list-style: none;
}

.price-slab li {
    display: flex;
    gap: 12px;
    color: var(--ink);
    font-weight: 800;
}

.price-slab li::before {
    content: "";
    flex: 0 0 auto;
    width: 12px;
    height: 7px;
    margin-top: 0.48em;
    border-left: 2px solid var(--blue);
    border-bottom: 2px solid var(--blue);
    transform: rotate(-45deg);
}

.price-slab .button {
    position: relative;
    z-index: 1;
    margin-top: auto;
}

.coverage {
    padding: 78px 0;
}

.coverage-grid {
    display: grid;
    grid-template-columns: 1.04fr 0.96fr;
    gap: 70px;
    align-items: end;
}

.coverage p {
    color: var(--muted-dark);
}

.questions {
    border-top: 1px solid var(--line-light);
}

.question-grid {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 0 36px;
}

.question-grid details {
    grid-column: 2;
    border-top: 1px solid var(--line-light);
    padding: 26px 0;
}

.question-grid details:last-child {
    border-bottom: 1px solid var(--line-light);
}

.question-grid summary {
    cursor: pointer;
    font-size: clamp(1.25rem, 2.8vw, 2.1rem);
    font-weight: 900;
    list-style: none;
}

.question-grid summary::-webkit-details-marker {
    display: none;
}

.question-grid summary::after {
    content: "+";
    float: right;
    color: var(--blue);
}

.question-grid details[open] summary::after {
    content: "-";
}

.question-grid details p {
    max-width: 720px;
    margin-top: 14px;
    color: var(--muted-light);
    font-size: 1.05rem;
}

.booking {
    padding: 96px 0;
}

.booking-layout {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: start;
}

.booking h2 {
    margin-top: 16px;
}

.direct-contact {
    display: grid;
    gap: 12px;
    margin-top: 34px;
}

.direct-contact a {
    width: fit-content;
    color: var(--muted-dark);
    font-weight: 900;
}

.direct-contact i {
    margin-right: 10px;
    color: var(--gold);
}

.booking-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-top: 1px solid var(--line-dark);
    border-left: 1px solid var(--line-dark);
}

.booking-form label {
    display: grid;
    gap: 10px;
    padding: 18px;
    border-right: 1px solid var(--line-dark);
    border-bottom: 1px solid var(--line-dark);
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.booking-form .full {
    grid-column: 1 / -1;
}

input,
select,
textarea {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--white);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: none;
}

select option {
    color: var(--ink);
}

textarea {
    resize: vertical;
}

input::placeholder,
textarea::placeholder {
    color: rgba(255, 255, 255, 0.38);
}

.booking-form .button {
    border-radius: 0;
}

.site-footer {
    border-top: 1px solid var(--line-dark);
    padding: 26px 0;
    background: var(--black);
    color: var(--muted-dark);
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 28px;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 800;
}

.footer-grid strong {
    color: var(--white);
}

section {
    scroll-margin-top: 92px;
}

.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1080px) {
    .chapter-rail {
        display: none;
    }

    .hero-layout,
    .standard-grid,
    .process-layout,
    .coverage-grid,
    .booking-layout {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
    }

    .hero-layout {
        min-height: auto;
    }

    .hero-data {
        max-width: 620px;
    }

    .tire-stage,
    .section-kicker,
    .process-sticky {
        position: relative;
        top: auto;
    }

    .pricing-head,
    .question-grid {
        grid-template-columns: 1fr;
    }

    .question-grid details {
        grid-column: 1;
    }

    .process-list article {
        grid-template-columns: 80px 1fr;
    }

    .process-list p {
        grid-column: 2;
    }
}

@media (max-width: 760px) {
    .container {
        width: min(100% - 28px, 1200px);
    }

    .site-header {
        grid-template-columns: 1fr auto;
        min-height: 70px;
    }

    .brand {
        min-width: 0;
        padding: 10px 14px;
    }

    .brand small {
        display: none;
    }

    .menu-toggle {
        display: block;
        width: 70px;
        height: 70px;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        display: none;
        flex-direction: column;
        align-items: stretch;
        border-top: 1px solid var(--line-dark);
        background: rgba(11, 15, 20, 0.98);
    }

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

    .nav-links a {
        min-height: 56px;
        border-left: 0;
        border-bottom: 1px solid var(--line-dark);
    }

    .hero {
        padding-top: 110px;
    }

    .hero-image {
        background:
            linear-gradient(180deg, rgba(11, 15, 20, 0.84), rgba(11, 15, 20, 0.76) 42%, rgba(11, 15, 20, 0.96) 100%),
            url("https://images.unsplash.com/photo-1607860108855-64acf2078ed9?auto=format&fit=crop&w=1100&q=82") center / cover;
    }

    h1 {
        font-size: clamp(3.1rem, 15vw, 4.8rem);
    }

    .hero-actions,
    .hero-actions .button {
        width: 100%;
    }

    .hero-layout {
        gap: 34px;
        padding-bottom: 52px;
    }

    .ticker span {
        padding: 14px 22px;
        font-size: 0.8rem;
    }

    .standard,
    .pricing,
    .questions,
    .process,
    .booking {
        padding: 68px 0;
    }

    .tire-stage {
        min-height: 400px;
    }

    .tire-stack {
        width: 176px;
        height: 176px;
    }

    .capability-grid,
    .price-slab-grid,
    .booking-form {
        grid-template-columns: 1fr;
    }

    .capability-grid article,
    .price-slab {
        min-height: auto;
    }

    .capability-grid h3 {
        margin-top: 46px;
    }

    .process-list article {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .process-list p {
        grid-column: 1;
    }

    .plan-top {
        display: grid;
    }
}

@media (max-width: 440px) {
    .brand strong {
        font-size: 0.88rem;
    }

    .brand-mark {
        width: 42px;
        height: 42px;
    }

    .hero-data div,
    .price-slab,
    .scan-card {
        padding: 18px;
    }

    .standard-copy h2,
    .process-sticky h2,
    .pricing-head h2,
    .coverage h2,
    .booking h2 {
        font-size: clamp(2.35rem, 12vw, 3.4rem);
    }
}