:root {
    --color-background: #f7f7f4;
    --color-surface: #ffffff;
    --color-surface-muted: #eeeeea;
    --color-text: #151515;
    --color-text-muted: #666660;
    --color-border: #dcdcd6;
    --color-accent: #202020;
    --color-accent-hover: #3a3a3a;

    --container-width: 1180px;
    --section-spacing: 7rem;

    --radius-small: 0.5rem;
    --radius-medium: 1rem;
    --radius-large: 1.5rem;

    --shadow-small: 0 10px 30px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 20px 60px rgba(0, 0, 0, 0.08);

    --transition: 180ms ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

img,
svg {
    display: block;
    max-width: 100%;
}

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

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

h1,
h2,
h3,
p,
blockquote {
    margin-top: 0;
}

.container {
    width: min(calc(100% - 2rem), var(--container-width));
    margin-inline: auto;
}

/* Header */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(247, 247, 244, 0.88);
    border-bottom: 1px solid rgba(220, 220, 214, 0.8);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.nav {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.nav__logo {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav__menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav__link {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 600;
    transition:
        color var(--transition),
        transform var(--transition);
}

.nav__link:hover {
    color: var(--color-text);
}

/* Buttons */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0.8rem 1.35rem;
    border: 1px solid transparent;
    border-radius: var(--radius-small);
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1;
    transition:
        background var(--transition),
        color var(--transition),
        border-color var(--transition),
        transform var(--transition),
        box-shadow var(--transition);
}

.button:hover {
    transform: translateY(-2px);
}

.button--primary {
    background: var(--color-accent);
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.button--primary:hover {
    background: var(--color-accent-hover);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.16);
}

.button--secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.button--secondary:hover {
    background: var(--color-surface);
    border-color: #bcbcb5;
}

/* Hero */

.hero {
    min-height: calc(100vh - 76px);
    display: flex;
    align-items: center;
    padding-block: 7rem;
}

.hero__content {
    max-width: 920px;
}

.hero__eyebrow,
.section-header__eyebrow {
    margin-bottom: 1.25rem;
    color: var(--color-text-muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.hero__title {
    max-width: 900px;
    margin-bottom: 2rem;
    font-size: clamp(3.5rem, 8vw, 7rem);
    line-height: 0.95;
    letter-spacing: -0.065em;
}

.hero__description {
    max-width: 700px;
    margin-bottom: 0;
    color: var(--color-text-muted);
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-top: 2.5rem;
}

/* Shared Sections */

.services,
.process,
.contact {
    padding-block: var(--section-spacing);
}

.section-header {
    max-width: 760px;
    margin-bottom: 4rem;
}

.section-header__title,
.contact__title {
    margin-bottom: 1.25rem;
    font-size: clamp(2.4rem, 5vw, 4.5rem);
    line-height: 1;
    letter-spacing: -0.05em;
}

.section-header__description,
.contact__description {
    max-width: 650px;
    margin-bottom: 0;
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

/* Services */

.services {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.service-card {
    min-height: 320px;
    padding: 2rem;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: #bdbdb6;
    box-shadow: var(--shadow-medium);
}

.service-card__title {
    margin-bottom: 1rem;
    font-size: 1.4rem;
    line-height: 1.2;
}

.service-card__description {
    margin-bottom: 0;
    color: var(--color-text-muted);
}

/* Process */

.process__list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    overflow: hidden;
    background: var(--color-border);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
}

.process-card {
    min-height: 300px;
    padding: 2rem;
    background: var(--color-background);
}

.process-card__number {
    display: block;
    margin-bottom: 4rem;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.process-card__title {
    margin-bottom: 0.85rem;
    font-size: 1.35rem;
}

.process-card__description {
    margin-bottom: 0;
    color: var(--color-text-muted);
}

/* Statement */

.statement {
    padding-block: 7rem;
    background: var(--color-accent);
    color: #ffffff;
}

.statement__quote {
    max-width: 1000px;
    margin-bottom: 0;
    font-size: clamp(3rem, 7vw, 6.5rem);
    font-weight: 750;
    line-height: 0.95;
    letter-spacing: -0.06em;
}

/* Contact */

.contact {
    background: var(--color-surface);
}

.contact__content {
    max-width: 780px;
}

.contact__description {
    margin-bottom: 2.25rem;
}

/* Footer */

.footer {
    padding-block: 2rem;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.footer__copyright {
    margin-bottom: 0;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Accessibility */

a:focus-visible,
button:focus-visible {
    outline: 3px solid rgba(32, 32, 32, 0.35);
    outline-offset: 4px;
}

/* Responsive */

@media (max-width: 900px) {
    :root {
        --section-spacing: 5rem;
    }

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

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

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

@media (max-width: 680px) {
    .container {
        width: min(calc(100% - 1.25rem), var(--container-width));
    }

    .nav {
        min-height: 68px;
    }

    .nav__menu {
        gap: 1rem;
    }

    .nav__item:not(:last-child) {
        display: none;
    }

    .nav .button {
        min-height: 42px;
        padding-inline: 1rem;
    }

    .hero {
        min-height: auto;
        padding-block: 5rem;
    }

    .hero__title {
        font-size: clamp(3.2rem, 15vw, 5rem);
    }

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

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

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

    .process-card__number {
        margin-bottom: 2.5rem;
    }

    .statement {
        padding-block: 5rem;
    }
}

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

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}