:root {
    --page-bg: #f6f7f8;
    --card-bg: #ffffff;
    --ink: #0e161b;
    --ink-muted: rgba(14, 22, 27, 0.64);
    --ink-subtle: rgba(14, 22, 27, 0.48);
    --accent: #0e161b;
    --accent-soft: rgba(14, 22, 27, 0.08);
    --radius: 10px;
    --radius-lg: 16px;
    --shadow-soft: 0 20px 48px rgba(14, 22, 27, 0.08);
    --shadow-card: 0 12px 32px rgba(14, 22, 27, 0.06);
    --gutter: clamp(20px, 5vw, 72px);
    font-family: 'Inter', sans-serif;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--page-bg);
    color: var(--ink);
    letter-spacing: 0;
}

body::before,
body::after {
    display: none;
}

.site-header {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(14, 22, 27, 0.06);
    box-shadow: none;
    backdrop-filter: none;
}

.nav {
    padding-block: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.nav__brand {
    gap: 4px;
    letter-spacing: 0.16em;
    font-size: 0.68rem;
}

.nav__wordmark {
    font-size: 1.2rem;
    font-weight: 600;
}

.nav__links {
    gap: clamp(14px, 1.8vw, 32px);
    font-size: 0.78rem;
    letter-spacing: 0.12em;
}

.nav__links > li > a {
    color: var(--ink-muted);
}

.nav__links > li > a:hover,
.nav__links > li > a:focus-visible {
    color: var(--ink);
}

.button {
    border-radius: 999px;
    padding: 14px 26px;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    border: 1px solid rgba(14, 22, 27, 0.12);
    background: var(--ink);
    color: #fff;
    box-shadow: none;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(14, 22, 27, 0.12);
}

.button--ghost,
.button--outline {
    background: transparent;
    color: var(--ink);
    border-color: rgba(14, 22, 27, 0.18);
}

.button--ghost:hover,
.button--ghost:focus-visible,
.button--outline:hover,
.button--outline:focus-visible {
    background: rgba(14, 22, 27, 0.06);
}

main {
    padding-top: 24px;
}

.hero {
    background: linear-gradient(150deg, rgba(14, 22, 27, 0.04), rgba(14, 22, 27, 0));
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14, 22, 27, 0.06);
    box-shadow: none;
    padding-block: clamp(80px, 14vw, 140px);
    margin-block: 40px;
    gap: 28px;
}

.hero__tagline {
    color: var(--ink-subtle);
    letter-spacing: 0.24em;
    font-size: 0.62rem;
}

.hero__title {
    font-size: clamp(2.6rem, 6vw, 4rem);
    font-weight: 600;
    line-height: 1.08;
}

.hero__subtitle {
    max-width: 520px;
    color: var(--ink-muted);
    font-size: 1rem;
}

.hero__actions {
    gap: 18px;
}

.hero__grid {
    background: transparent;
    border: 1px solid rgba(14, 22, 27, 0.08);
    border-radius: var(--radius-lg);
    padding: clamp(24px, 5vw, 36px);
    gap: 18px;
}

.hero__stat {
    border-radius: var(--radius);
    border: 1px solid rgba(14, 22, 27, 0.08);
    background: var(--card-bg);
    box-shadow: none;
    padding: 24px;
    gap: 10px;
}

.hero__stat-icon {
    background: rgba(14, 22, 27, 0.06);
    color: var(--ink);
}

.section {
    padding: clamp(64px, 10vw, 96px) var(--gutter);
    margin-block: 32px;
    background: transparent;
}

.section--border {
    border: 1px solid rgba(14, 22, 27, 0.06);
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    box-shadow: none;
}

.section__heading {
    gap: 12px;
}

.section__label {
    color: var(--ink-subtle);
    letter-spacing: 0.22em;
    font-size: 0.64rem;
}

.section__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
}

.section__subtitle {
    color: var(--ink-muted);
    font-size: 0.95rem;
}

.video-highlight {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14, 22, 27, 0.06);
    background: var(--card-bg);
}

.video-grid {
    gap: clamp(18px, 3vw, 28px);
}

.video-card {
    border-radius: var(--radius);
    border: 1px solid rgba(14, 22, 27, 0.08);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: none;
    padding: clamp(22px, 4vw, 28px);
}

.video-card__icon {
    background: rgba(14, 22, 27, 0.06);
    color: var(--ink);
}

.video-card--cta {
    border: 1px solid rgba(14, 22, 27, 0.12);
    background: rgba(14, 22, 27, 0.04);
}

.approach {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14, 22, 27, 0.06);
    background: var(--card-bg);
    padding: clamp(28px, 5vw, 48px);
    display: grid;
    gap: clamp(24px, 4vw, 32px);
}

.approach__item {
    border-radius: var(--radius);
    border: 1px solid rgba(14, 22, 27, 0.08);
    padding: clamp(22px, 4vw, 28px);
    gap: 10px;
}

.about {
    display: grid;
    gap: clamp(32px, 6vw, 48px);
}

.about__intro {
    max-width: 600px;
}

.meta {
    border-radius: var(--radius);
    border: 1px solid rgba(14, 22, 27, 0.06);
    background: rgba(255, 255, 255, 0.9);
    padding: 18px;
    display: grid;
    gap: 6px;
}

.clients {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14, 22, 27, 0.08);
    background: var(--card-bg);
    padding: clamp(22px, 5vw, 32px);
    display: grid;
    gap: clamp(16px, 3vw, 24px);
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    text-align: center;
    font-weight: 500;
}

.client-grid {
    display: grid;
    gap: clamp(18px, 3vw, 30px);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.client-card {
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(14, 22, 27, 0.06);
    padding: clamp(20px, 3vw, 26px);
    box-shadow: 0 12px 24px rgba(14, 22, 27, 0.06);
    display: grid;
    gap: 10px;
}

.client-card__label {
    font-weight: 600;
    font-size: 1.05rem;
}

.client-card__note {
    margin: 0;
    font-size: 0.9rem;
    color: var(--ink-muted);
}

.contact {
    display: grid;
    gap: clamp(24px, 5vw, 36px);
}

.contact__copy {
    max-width: 560px;
}

.contact__details > div {
    padding: 14px 0;
    border-bottom: 1px solid rgba(14, 22, 27, 0.08);
}

.contact__details > div:last-child {
    border-bottom: none;
}

.contact__link {
    font-weight: 500;
    color: var(--ink);
}

.growth-calculator {
    display: grid;
    gap: clamp(24px, 4vw, 44px);
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
    border-radius: var(--radius-lg);
    background: linear-gradient(160deg, rgba(14, 22, 27, 0.04), rgba(14, 22, 27, 0));
    padding: clamp(24px, 4vw, 40px);
}

.growth-calculator__form {
    display: grid;
    gap: clamp(20px, 3vw, 32px);
}

.growth-calculator__summary {
    position: sticky;
    top: 120px;
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    padding: clamp(24px, 3vw, 34px);
    display: grid;
    gap: 16px;
    box-shadow: 0 18px 40px rgba(14, 22, 27, 0.08);
    border: 1px solid rgba(14, 22, 27, 0.05);
}

.calc-section {
    display: grid;
    gap: 16px;
    padding: clamp(18px, 3vw, 26px);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(14, 22, 27, 0.05);
    box-shadow: 0 12px 28px rgba(14, 22, 27, 0.06);
}

.calc-section__header {
    display: grid;
    gap: 8px;
}

.calc-section__label {
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-subtle);
}

.calc-section__hint {
    margin: 0;
    font-size: 0.9rem;
    color: var(--ink-muted);
}

.calc-choice-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.calc-choice {
    position: relative;
    display: grid;
    gap: 8px;
    padding: clamp(16px, 3vw, 22px);
    border: 1px solid rgba(14, 22, 27, 0.08);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.94);
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.calc-choice input {
    position: absolute;
    opacity: 0;
}

.calc-choice__marker {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid rgba(14, 22, 27, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.calc-choice input:checked + .calc-choice__marker,
.calc-choice input:checked ~ .calc-choice__marker {
    border-color: var(--ink);
    box-shadow: inset 0 0 0 4px var(--ink);
}

.calc-choice__title {
    font-weight: 600;
}

.calc-choice__meta {
    font-size: 0.86rem;
    color: var(--ink-muted);
}

.calc-choice:hover,
.calc-choice:focus-within {
    border-color: rgba(14, 22, 27, 0.2);
    box-shadow: 0 12px 28px rgba(14, 22, 27, 0.08);
}

.calc-choice--checkbox .calc-choice__marker {
    border-radius: 6px;
}

.calc-slider {
    display: grid;
    gap: 12px;
}

.calc-slider__track {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14, 22, 27, 0.08);
    padding: 18px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: inset 0 0 0 1px rgba(14, 22, 27, 0.04);
}

.calc-slider__track input[type="range"] {
    width: 100%;
    accent-color: var(--ink);
}

.calc-slider__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.82rem;
    color: var(--ink-subtle);
}

.calc-slider__value {
    font-weight: 600;
    color: var(--ink);
}

.calc-flag {
    display: flex;
    gap: 14px;
    align-items: center;
    padding: clamp(16px, 3vw, 22px);
    border: 1px solid rgba(230, 126, 34, 0.24);
    border-radius: var(--radius-lg);
    background: rgba(230, 126, 34, 0.12);
    font-size: 0.9rem;
}

.calc-flag input {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    accent-color: var(--ink);
}

.calc-flag__label {
    color: var(--ink);
    line-height: 1.4;
}

.calc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.calc-note {
    font-size: 0.82rem;
    color: var(--ink-subtle);
}

.calc-result {
    display: grid;
    gap: 6px;
}

.calc-result__label {
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-subtle);
}

.calc-result__value {
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    font-weight: 600;
}

.calc-result__breakdown {
    margin: 0;
    font-size: 0.9rem;
    color: var(--ink-muted);
    line-height: 1.6;
}

.calc-result__hint {
    font-size: 0.8rem;
    color: var(--ink-muted);
}

@media (max-width: 1024px) {
    .growth-calculator {
        grid-template-columns: 1fr;
    }

    .growth-calculator__summary {
        position: static;
        box-shadow: 0 12px 26px rgba(14, 22, 27, 0.08);
    }
}

@media (max-width: 640px) {
    .calc-choice-grid {
        grid-template-columns: 1fr;
    }

    .calc-choice__marker {
        position: static;
    }
}

@media (max-width: 960px) {
    .nav {
        flex-wrap: wrap;
    }

    .nav__links {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .nav__cta {
        order: 2;
    }

    .hero__grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    .clients {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
}