:root {
    --color-bg: #f7f7f5;
    --color-surface: #ffffff;
    --color-surface-dark: #111111;

    --color-text: #151515;
    --color-text-muted: #666666;
    --color-text-light: #a0a0a0;

    --color-border: #e5e5e2;
    --color-border-dark: #2a2a2a;

    --color-accent: #151515;
    --color-accent-hover: #333333;

    --color-white: #ffffff;

    --container-width: 1180px;

    --space-1: 0.5rem;
    --space-2: 0.75rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-7: 4rem;
    --space-8: 6rem;
    --space-9: 8rem;

    --radius-small: 4px;
    --radius-medium: 8px;
    --radius-large: 14px;

    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.06);

    --transition-fast: 180ms ease;
}


/*
|--------------------------------------------------------------------------
| Reset
|--------------------------------------------------------------------------
*/

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;

    background: var(--color-bg);
    color: var(--color-text);

    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    font-size: 16px;
    line-height: 1.6;

    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

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

button {
    cursor: pointer;
}

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

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1,
h2,
h3,
h4,
p {
    margin-top: 0;
}


/*
|--------------------------------------------------------------------------
| Accessibility
|--------------------------------------------------------------------------
*/

.skip-link {
    position: fixed;
    top: 1rem;
    left: 1rem;

    z-index: 9999;

    padding: 0.75rem 1rem;

    background: var(--color-text);
    color: var(--color-white);

    transform: translateY(-200%);
    transition: transform var(--transition-fast);
}

.skip-link:focus {
    transform: translateY(0);
}

:focus-visible {
    outline: 3px solid #555;
    outline-offset: 4px;
}


/*
|--------------------------------------------------------------------------
| Layout
|--------------------------------------------------------------------------
*/

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

    margin-inline: auto;
}

main {
    min-height: 60vh;
}


/*
|--------------------------------------------------------------------------
| Header
|--------------------------------------------------------------------------
*/

.site-header {
    position: relative;
    z-index: 100;

    background: rgba(247, 247, 245, 0.96);
    border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
    min-height: 76px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.site-logo {
    flex-shrink: 0;

    color: var(--color-text);

    font-size: 1.25rem;
    font-weight: 750;
    letter-spacing: -0.04em;
}

.site-navigation {
    position: absolute;

    top: 100%;
    left: 0;
    right: 0;

    display: none;

    padding: 1rem;

    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);

    box-shadow: var(--shadow-soft);
}

.site-navigation.is-open {
    display: block;
}

.site-navigation__list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.site-navigation__list a {
    display: block;

    padding: 0.7rem 0;

    color: var(--color-text-muted);

    font-size: 0.95rem;
    font-weight: 500;

    transition:
        color var(--transition-fast),
        opacity var(--transition-fast);
}

.site-navigation__list a:hover,
.site-navigation__list a.is-active {
    color: var(--color-text);
}

.menu-toggle {
    display: flex;

    width: 42px;
    height: 42px;

    padding: 0;

    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;

    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
}

.menu-toggle__line {
    display: block;

    width: 18px;
    height: 1.5px;

    background: var(--color-text);
}


/*
|--------------------------------------------------------------------------
| Buttons
|--------------------------------------------------------------------------
*/

.button {
    display: inline-flex;

    min-height: 48px;

    align-items: center;
    justify-content: center;

    padding: 0.75rem 1.25rem;

    border: 1px solid transparent;
    border-radius: var(--radius-small);

    font-size: 0.95rem;
    font-weight: 600;

    line-height: 1;
    text-align: center;

    transition:
        background-color var(--transition-fast),
        color var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast);
}

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

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

.button--primary:hover {
    background: var(--color-accent-hover);
}

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

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

.button--text {
    min-height: auto;
    padding: 0;

    border: 0;

    background: transparent;
    color: var(--color-text);
}

.button--header {
    width: 100%;
    margin-top: 1rem;

    background: var(--color-text);
    color: var(--color-white);
}

.button--footer {
    background: var(--color-white);
    color: var(--color-text);
}


/*
|--------------------------------------------------------------------------
| Section
|--------------------------------------------------------------------------
*/

.section {
    padding-block: var(--space-8);
}

.section--large {
    padding-block: var(--space-9);
}

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

.section-heading {
    max-width: 720px;
    margin-bottom: var(--space-6);
}

.section-heading__eyebrow {
    margin-bottom: 0.75rem;

    color: var(--color-text-muted);

    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.section--dark .section-heading__eyebrow {
    color: #999999;
}

.section-heading__title {
    margin-bottom: 1rem;

    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.05;
    letter-spacing: -0.045em;
}

.section-heading__description {
    max-width: 620px;
    margin-bottom: 0;

    color: var(--color-text-muted);
    font-size: 1.05rem;
}

.section--dark .section-heading__description {
    color: #a9a9a9;
}


/*
|--------------------------------------------------------------------------
| Hero
|--------------------------------------------------------------------------
*/

.hero {
    padding-block: 5rem 4rem;
}

.hero__grid {
    display: grid;
    gap: var(--space-7);
    align-items: center;
}

.hero__content {
    max-width: 700px;
}

.hero__eyebrow {
    margin-bottom: 1rem;

    color: var(--color-text-muted);

    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero__title {
    margin-bottom: 1.5rem;

    font-size: clamp(3rem, 10vw, 6.5rem);
    line-height: 0.92;
    letter-spacing: -0.065em;
}

.hero__description {
    max-width: 600px;
    margin-bottom: 2rem;

    color: var(--color-text-muted);

    font-size: clamp(1rem, 2vw, 1.2rem);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}


/*
|--------------------------------------------------------------------------
| Hero visual
|--------------------------------------------------------------------------
*/

.hero__visual {
    min-height: 300px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #eaeae7;
    border: 1px solid var(--color-border);
}

.website-mockup {
    width: 90%;

    background: var(--color-white);
    border: 1px solid #dcdcd8;

    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.1);
}

.website-mockup__browser {
    height: 30px;

    display: flex;
    align-items: center;

    padding-inline: 0.75rem;

    border-bottom: 1px solid var(--color-border);

    background: #f5f5f3;
}

.website-mockup__dots {
    display: flex;
    gap: 5px;
}

.website-mockup__dots span {
    width: 6px;
    height: 6px;

    border-radius: 50%;

    background: #bdbdb9;
}

.website-mockup__screen {
    min-height: 190px;

    padding: 1.5rem;
}


/*
|--------------------------------------------------------------------------
| Portfolio
|--------------------------------------------------------------------------
*/

.portfolio-grid {
    display: grid;
    gap: 1.5rem;
}

.portfolio-card {
    overflow: hidden;

    background: var(--color-surface);
    border: 1px solid var(--color-border);

    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
}

.portfolio-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
}

.portfolio-card__image {
    display: block;

    aspect-ratio: 16 / 10;

    overflow: hidden;

    background: #e9e9e6;
}

.portfolio-card__image img {
    width: 100%;
    height: 100%;

    object-fit: cover;

    transition: transform 300ms ease;
}

.portfolio-card:hover .portfolio-card__image img {
    transform: scale(1.02);
}

.portfolio-card__content {
    padding: 1.5rem;
}

.portfolio-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;

    margin-bottom: 0.75rem;

    color: var(--color-text-muted);

    font-size: 0.78rem;
    font-weight: 600;
}

.portfolio-card__title {
    margin-bottom: 0.5rem;

    font-size: 1.35rem;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.portfolio-card__description {
    margin-bottom: 1rem;

    color: var(--color-text-muted);
}

.portfolio-card__label {
    display: inline-block;

    margin-bottom: 1rem;
    padding: 0.25rem 0.5rem;

    background: #f0f0ed;

    color: #555550;

    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.portfolio-card__link {
    display: inline-flex;
    gap: 0.5rem;

    font-size: 0.9rem;
    font-weight: 700;
}

.portfolio-card__link:hover {
    text-decoration: underline;
}


/*
|--------------------------------------------------------------------------
| Services
|--------------------------------------------------------------------------
*/

.services-grid {
    display: grid;
    gap: 1px;

    background: var(--color-border);
    border: 1px solid var(--color-border);
}

.service-card {
    padding: 1.5rem;

    background: var(--color-surface);
}

.service-card__title {
    margin-bottom: 0.5rem;

    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

.service-card__description {
    margin-bottom: 0;

    color: var(--color-text-muted);
}


/*
|--------------------------------------------------------------------------
| Benefits
|--------------------------------------------------------------------------
*/

.benefits-grid {
    display: grid;
    gap: 1px;

    background: var(--color-border);
    border: 1px solid var(--color-border);
}

.benefit-card {
    padding: 1.5rem;

    background: var(--color-surface);
}

.benefit-card__title {
    margin-bottom: 0.5rem;

    font-size: 1.2rem;
}

.benefit-card__description {
    margin-bottom: 0;

    color: var(--color-text-muted);
}


/*
|--------------------------------------------------------------------------
| Process
|--------------------------------------------------------------------------
*/

.process-grid {
    display: grid;
    gap: 1px;

    background: var(--color-border);
    border: 1px solid var(--color-border);
}

.process-step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;

    padding: 1.5rem;

    background: var(--color-surface);
}

.process-step__number {
    width: 38px;
    height: 38px;

    display: flex;
    align-items: center;
    justify-content: center;

    border: 1px solid var(--color-border);

    font-size: 0.8rem;
    font-weight: 700;
}

.process-step__title {
    margin-bottom: 0.4rem;

    font-size: 1.1rem;
}

.process-step__description {
    margin-bottom: 0;

    color: var(--color-text-muted);
}


/*
|--------------------------------------------------------------------------
| Industries
|--------------------------------------------------------------------------
*/

.industry-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;

    border-top: 1px solid var(--color-border);
}

.industry-list__item {
    padding: 1rem 0;

    border-bottom: 1px solid var(--color-border);

    font-weight: 600;
}


/*
|--------------------------------------------------------------------------
| Demo notice
|--------------------------------------------------------------------------
*/

.demo-notice {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;

    margin-bottom: 2rem;
    padding: 1rem 1.25rem;

    background: #eeeeeb;
    border-left: 3px solid #777;

    color: #444;
}

.demo-notice strong {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.demo-notice span {
    font-size: 0.9rem;
}


/*
|--------------------------------------------------------------------------
| Contact
|--------------------------------------------------------------------------
*/

.contact-grid {
    display: grid;
    gap: var(--space-7);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;

    margin-bottom: 0.4rem;

    font-size: 0.9rem;
    font-weight: 650;
}

.form-control {
    width: 100%;

    min-height: 50px;

    padding: 0.75rem 0.9rem;

    background: var(--color-white);
    border: 1px solid var(--color-border);

    border-radius: var(--radius-small);

    color: var(--color-text);

    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.form-control:focus {
    border-color: #888;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.06);
    outline: none;
}

.form-help {
    margin-top: 0.35rem;

    color: var(--color-text-muted);

    font-size: 0.8rem;
}

.form-error {
    margin-top: 0.35rem;

    color: #9b2226;

    font-size: 0.85rem;
}

.form-success {
    margin-bottom: 1.5rem;
    padding: 1rem;

    background: #edf6ef;
    border: 1px solid #c8dfcc;

    color: #285c32;
}


/*
|--------------------------------------------------------------------------
| Footer
|--------------------------------------------------------------------------
*/

.site-footer {
    padding-block: 4rem 1.5rem;

    background: var(--color-surface-dark);
    color: var(--color-white);
}

.site-footer__grid {
    display: grid;
    gap: 3rem;
}

.site-footer__logo {
    display: inline-block;

    margin-bottom: 0.5rem;

    font-size: 1.25rem;
    font-weight: 750;
    letter-spacing: -0.04em;
}

.site-footer__tagline {
    max-width: 250px;
    margin-bottom: 0;

    color: #999;
}

.site-footer__heading {
    margin-bottom: 1rem;

    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;

    color: #999;
}

.site-footer__links {
    display: grid;
    gap: 0.55rem;
}

.site-footer__links a {
    color: #d0d0d0;

    font-size: 0.9rem;

    transition: color var(--transition-fast);
}

.site-footer__links a:hover {
    color: var(--color-white);
}

.site-footer__text {
    max-width: 300px;

    margin-bottom: 1.25rem;

    color: #999;
}

.site-footer__bottom {
    margin-top: 4rem;
    padding-top: 1.5rem;

    border-top: 1px solid var(--color-border-dark);

    color: #777;

    font-size: 0.8rem;
}


/*
|--------------------------------------------------------------------------
| Responsive - Tablet
|--------------------------------------------------------------------------
*/

@media (min-width: 700px) {

    .container {
        width: min(
            calc(100% - 3rem),
            var(--container-width)
        );
    }

    .hero {
        padding-block: 7rem 6rem;
    }

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

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

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

    .process-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact-grid {
        grid-template-columns: 0.8fr 1.2fr;
    }

    .site-footer__grid {
        grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
    }

}


/*
|--------------------------------------------------------------------------
| Responsive - Desktop
|--------------------------------------------------------------------------
*/

@media (min-width: 900px) {

    .site-header__inner {
        min-height: 84px;
    }

    .menu-toggle {
        display: none;
    }

    .site-navigation {
        position: static;

        display: flex;

        align-items: center;
        gap: 2rem;

        padding: 0;

        background: transparent;
        border: 0;
        box-shadow: none;
    }

    .site-navigation__list {
        flex-direction: row;
        align-items: center;
        gap: 1.75rem;
    }

    .site-navigation__list a {
        padding: 0.25rem 0;
    }

    .button--header {
        width: auto;
        margin-top: 0;
    }

    .hero__grid {
        grid-template-columns: minmax(0, 1fr) minmax(350px, 0.85fr);
    }

    .hero__visual {
        min-height: 500px;
    }

    .website-mockup__screen {
        min-height: 320px;
    }

    .industry-list {
        grid-template-columns: repeat(4, 1fr);
    }

}


/*
|--------------------------------------------------------------------------
| Reduced motion
|--------------------------------------------------------------------------
*/

@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;
    }

}