:root {
    --clr-white: oklch(97% 0 0);
    --clr-gray-1: oklch(93% 0 0);
    --clr-gray-2: oklch(80% 0 0);
    --clr-gray-3: oklch(55% 0 0);
    --clr-gray-4: oklch(30% 0 0);
    --clr-black: oklch(14% 0 0);
    --font-ui: system-ui, -apple-system, sans-serif;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.375rem;
    --text-2x1: 1.75rem;
    --text-3x1: 2.25rem;
    --text-4x1: 2.875rem;
    --leading-tight: 1.2;
    --leading-normal: 1.6;
    --leading-loose: 1.8;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --max-w: 1400px;
    --transition: 160ms ease;
}
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding: 72px;
}
.sheet-backdrop {
    position: fixed;
    inset: 0;
    background: oklch(0% 0 0 / 0.4);
    opacity: 0;
    visibility: hidden;
    transition: opacity 280ms ease, visibility 280ms ease;
    z-index: 100;
}
.sheet-backdrop.is-open {
    opacity: 1;
    visibility: visible;
}
.sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: oklch(98% 0 0);
    border-radius: 20px 20px 0 0;
    padding: 24px 32px 40px;
    min-height: 45vh;
    max-height: 75vh;
    overflow-y: auto;
    transform: translateY(100%);
    transition: transform 320ms cubic-bezier(0.32, 0.72, 0, 1);
    z-index: 101;
}
.sheet.is-open {
    transform: translateY(0);
}
.sheet__handle {
    width: 40px;
    height: 4px;
    background: 0 auto 24px;
}
.sheet__close {
    position: absolute;
    top: 20px;
    right: 24px;
    width: 32px;
    height: 32px;
    border: none;
    background: oklch(93% 0 0);
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 160ms ease;
}
.sheet__close:hover {
    background: oklch(88% 0 0);
}
body {
    font-family: var(--font-ui);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--clr-gray-4);
    background: var(--clr-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
img, svg { display: block; max-width: 100%;}
a { color: inherit; text-decoration: none; }
ul {list-style: none; }
address {font-style: normal; }
.container {
    width: 100%;
    max-width: var(--max-w);
    margin-inline: auto;
    padding-inline: var(--space-4);
}
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeIn {
    from {opacity: 0;}
    to {opacity: 1;}
}
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--clr-white);
    border-bottom: 1px solid var(--clr-gray-2);
    animation: fadeIn 400ms ease both;
}
.header__inner {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    height: 64px;
}
.header__contacts {
    display: flex;
    align-items: center;
    gap: 14px;
}
.header__phone,
.header__email {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--clr-gray-3);
    text-decoration: none;
    white-space: nowrpap;
}
.header__email:hover,
.header__phone:hover {
    color: var(--clr-black);
}
.logo {
    flex-shrink: 0;
    color: var(--clr-black);
    transition: opacity var(--transition);
}
.logo:hover { opacity: 0.65; }
.logo__icon {
    width: 56px;
    height: 28px;
}
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-left: var(--space-4);
    flex: 1;
}
.nav__link {
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--clr-gray-4);
    padding-block: var(--space-1);
    border-bottom: 2px solid transparent;
    transition: color var(--transition), border-color var(--transition);
}
.nav__link:hover {
    color: var(--clr-black);
    border-bottom-color: var(--clr-black);
}
.burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    flex-shrink: 0;
}
.burger span {
    display: block;
    height: 2px;
    background: var(--clr-black);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}
.burger--open span:nth-child(1) {
    opacity: 0;
}
.burger--open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-ui);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    white-space: nowrap;
}
.btn--outline {
    background: transparent;
    color: var(--clr-white);
    background-color: var(--clr-black);
    border: 2px solid var(--clr-black);
    margin-top: 10px;
    margin-bottom: 10px;
}
.btn--outline:hover {
    background: var(--clr-white);
    color: var(--clr-black);
    border: 3px solid var(--clr-black);
    box-shadow: 0 5px 15px var(--clr-black);
    transition: box-shadow var(--transition);
}
.hero {
    padding-block: var(--space-20) var(--space-16);
    border-bottom: 1px solid var(--clr-gray-2);
    background-color: var(--clr-gray-1);
}
.hero__inner {
    display: flex;
    align-items: center;
    gap: var(--space-12);
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}
.hero__content {
    flex: 0 1 560px;
    max-width: 540px;
}
.hero__content .btn {
    animation: fadeUp 600ms ease both;
    animation-delay: 300ms;
}
.hero__title {
    animation: fadeUp 600ms ease both;
    animation-delay: 100ms;
    font-size: var(--text-4x1);
    font-weight: 800;
    line-height: var(--leading-tight);
    letter-spacing: -0.02em;
    text-transform: uppercase;
    color: var(--clr-black);
    margin-bottom: var(--space-6);
}
.hero__icon-row {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}
.hero__icon {
    width: 80px;
    height: auto;
    display: inline-block;
    vertical-align: middle;margin-left: 12px;
    flex-shrink: 0;
}
.hero__text {
    animation: fadeUp 600ms ease both;
    animation-delay: 200ms;
    font-size: var(--text-base);
    line-height: var(--leading-loose);
    color: var(--clr-gray-4);
    margin-bottom: var(--space-4);
}
.hero__text:last-of-type { margin-bottom: var(--space-8); }
.hero__image {
    animation: fadeUp 700ms ease both;
    animation-delay: 250ms;
    flex-shrink: 0;
    color: var(--clr-black);
}
.hero__image img {
    width: 100%;
    max-width: 600px;
    height: auto;
    display: block;
    border-radius: 5px;
}
.cards {
    padding-block: var(--space-16);
    border-bottom: 1px solid var(--clr-gray-2);
}
.cards__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}
.card {
    background-color: var(--clr-gray-1);
    background-attachment: var(--clr-gray-1);
    border: 1px solid var(--clr-gray-2);
    border-radius: var(--radius-md);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}
.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transition: box-shadow var(--transition);
    border: var(--clr-black);
}
.card:nth-child(1) { animation: fadeUp 600ms ease both; animation-delay: 400ms;}
.card:nth-child(2) { animation: fadeUp 600ms ease both; animation-delay: 520ms;}
.card:nth-child(3) { animation: fadeUp 600ms ease both; animation-delay: 640ms;}
.card__image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius-sm);
    border: 1px solid var(--clr-gray-2);
    background: var(--clr-white);
    color: var(--clr-black);
    display: flex;
    align-items: center;
    justify-content: center;
}
.card__title {
    font-size: var(--text-2x1);
    font-weight: 700;
    color: var(--clr-black);
    letter-spacing: -0.01em;
}
.card__list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}
.card__list li {
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--clr-gray-4);
    padding-left: var(--space-4);
    position: relative;
}
.card__list li::before {
    content: '-';
    position: absolute;
    left: 0;
    color: var(--clr-gray-3);
}
#bottomSheet ul {
    list-style: disc;
    padding-left: 24px;
}
#bottomSheet li {
    margin-bottom: 10px;
    line-height: 1.6;
}
.sheet__close:hover {
    color: var(--clr-black);
}
.about {
    padding-block: var(--space-20);
    border-bottom: 1px solid var(--clr-gray-2);
    background-color: var(--clr-gray-1);
}
.about__inner {
    display: flex;
    align-items: center;
    gap: var(--space-16);
    max-width: 1280px;
    margin: 0 auto;
}
.about__content { flex: 1; }
.about__title {
    font-size: var(--text-3x1);
    font-weight: 700;
    color: var(--clr-black);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-6);
}
.about__text {
    font-size: var(--text-base);
    line-height: var(--leading-loose);
    color: var(--clr-black);
    margin-bottom: var(--space-10);
}
.about__stats {
    display: flex;
    gap: var(--space-10);
}
.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}
.stat__number {
    font-size: var(--text-3x1);
    font-weight: 800;
    color: var(--clr-black);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.03em;
    line-height: 1;
}
.stat__label {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--clr-gray-3);
}
.about__image {
    flex: 0 1 560px;
    color: var(--clr-black);
}
.about__image img {
    width: 100%;
    max-width: 6400px;
    height: auto;
    display: block;
    border-radius: 5px;
}
.footer {
    margin-top: auto;
    background: var(--clr-black);
    color: var(--clr-white);
    padding-block: var(--space-8);
}
.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--clr-gray-2);
}
.footer__contacts {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-2);
}
.footer__link:hover { color: var(--clr-white); }
.partners-logos {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-top: 28px;
}
.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 115px;
    padding: 14px;
    background: var(--clr-white);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 10px;
    transition: transform var(--transition) ease, box-shadow var(--transition) ease;
    text-decoration: none;
}
.partner-logo:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}
.partner-logo img {
    display: block;
    max-width: 85%;
    max-height: 72px;
    width: auto;
    height: auto;
    object-fit: contain;
}
.partner-logo img[src$="p02.png"] { transform: scale(2);}
.partner-logo img[src$="p07.png"] { transform: scale(2);}
.partner-logo img[src$="p25.png"] { transform: scale(2);}
.partner-logo img[src$="p27.png"] { transform: scale(2);}
.partner-logo img[src$="p29.png"] { transform: scale(1.5);}
.partner-logo img[src$="p30.png"] { transform: scale(2);}
@media (max-width: 900px) {
    .cards__grid { grid-template-columns: 1fr; 
    max-width: 560px;
    margin-inline: auto;
    .partners-logos {
        grid-template-columns: repeat(3, 1fr);
    }
}
.hero__image { width: 460px; }
.about__inner { gap: var(--space-10); }
.about__image { width: 400px; }
}
@media (max-width: 760px) {
    .burger { 
        display: flex;
    flex-shrink: 0;
    }
    .header__phone {margin-left: auto;}
    .nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        background: var(--clr-white);
        border-bottom: 1px solid var(--clr-gray-2);
        padding: var(--space-4) var(--space-6);
        gap: var(--space-4);
        margin-left: 0;
    }
    .nav--open { display: flex; }
    .nav__link { font-size: var(--text-base); }
    .hero { padding-block: var(--space-12) var(--space-10); }
    .hero__inner { flex-direction: column;
    gap: var(--space-8);
    }
    .hero__title { font-size: var(--text-2x1);
    }
    .hero__content {
        flex: 0 0 auto;
        width: 100%;
    }
    .hero__image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 480px;
        margin-inline: auto;
    }
    .about { padding-block: var(--space-12); }
    .about__inner { flex-direction: column;
    gap: var(--space-8); }
    .about__image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 480px;
        margin-inline: auto;
    }
    .about__text {
        flex: 0 0 auto;
        width: 100%;
    }
    .about__title { font-size: var(--text-2x1); }
    .about__stats { gap: var(--space-6); flex-wrap: wrap; }
    .footer__inner { flex-direction: column; }
    .footer__contacts {align-items: flex-start; }
    .cards { padding-block: var(--space-10);}
    .cards__grid {max-width: 100%;}
    .partners-logos {
        grid-template-columns: repeat(2, 1fr);
    }
    header {
        display: flex;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
    }
    .header__top {
        display: flex;
        align-items: center;
        gap: 12px;
        flex: 1;
        min-width: 0;
    }
    .header__contacts {
        display: flex;
        flex-direction: row;
        gap: 8px;
        flex-shrink: 1;
        min-width: 0;
    }
    .header__contacts a {
        font-size: 11px;
        white-space: nowrap;
    }
}
@media (max-width: 480px) {
    .container {padding-inline: var(--space-4); }
    .hero__title {font-size: var(--text-xl);}
    .about__title {font-size: var(--text-xl);}
    .stat__number {font-size: var(--text-2x1);}
    .btn {padding: var(--space-3) var(--space-4); font-size: var(--text-xs);}
    .partners-logos {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .partner-logo {
        min-height: 72px;
        padding: 10px;
    }
    .partner-logo img {
        max-height: 44px;
    }
    .header__email {
        display: none;
    }
}
@media (prefers-reduced-motion: reduce) {
    .header,
    .hero__title,
    .hero__text,
    .hero__content .btn,
    .hero__image,
    .card {
        animation: none;
    }
}