:root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --text: #171b21;
    --muted: #687282;
    --line: #e2e8f0;
    --line-dark: #cfd8e3;
    --navy: #12324d;
    --navy-dark: #0b2033;
    --navy-soft: #173e5f;
    --accent: #f0ad3d;
    --accent-soft: #fff3dc;
    --white: #ffffff;
    --shadow-soft: 0 18px 50px rgba(16, 36, 56, 0.08);
    --shadow-card: 0 10px 28px rgba(15, 32, 48, 0.06);
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 14px;
    --container: 1240px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at top left, rgba(240, 173, 61, 0.07), transparent 28%),
        linear-gradient(180deg, #f8fafc 0%, #f5f7fa 100%);
    color: var(--text);
    font-family: "Manrope", Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

body,
button,
input,
select,
textarea {
    font-family: "Manrope", Arial, Helvetica, sans-serif;
}

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

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

button {
    cursor: pointer;
}

svg {
    display: block;
}

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

.container {
    width: min(var(--container), calc(100% - 40px));
    margin: 0 auto;
}


/* TOPBAR */

.topbar {
    background: var(--navy-dark);
    color: #d0d9e3;
    font-size: 12px;
}

.topbar-inner {
    min-height: 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.topbar-contact {
    display: flex;
    align-items: center;
    gap: 24px;
}

.topbar a {
    transition: color .2s ease;
}

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


/* HEADER */

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(226, 232, 240, 0.9);
    backdrop-filter: blur(14px);
}

.header-inner {
    min-height: 80px;
    display: flex;
    align-items: center;
    gap: 36px;
}

.brand {
    display: inline-flex;
    align-items: baseline;
    flex: 0 0 auto;
    letter-spacing: -1.6px;
}

.brand-sign {
    color: var(--text);
    font-size: 28px;
    font-weight: 800;
}

.brand-domain {
    margin-left: 2px;
    color: var(--accent);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: -.4px;
}

.main-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 28px;
}

.main-nav a {
    position: relative;
    padding: 29px 0 27px;
    font-size: 13px;
    font-weight: 700;
    color: #273343;
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -1px;
    height: 2px;
    border-radius: 999px;
    background: var(--accent);
    transition: right .22s ease;
}

.main-nav a:hover::after,
.main-nav .nav-primary::after {
    right: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-phone {
    color: var(--navy);
    font-size: 12px;
    font-weight: 800;
}

.header-request {
    padding: 13px 18px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--navy), var(--navy-soft));
    color: var(--white);
    font-size: 12px;
    font-weight: 800;
    box-shadow: 0 10px 22px rgba(18, 50, 77, 0.18);
    transition:
        transform .2s ease,
        box-shadow .2s ease;
}

.header-request:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 26px rgba(18, 50, 77, 0.22);
}

.menu-toggle {
    width: 42px;
    height: 42px;
    display: none;
    padding: 0;
    border: 0;
    background: transparent;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    display: block;
    margin: 6px auto;
    border-radius: 999px;
    background: var(--text);
    transition:
        transform .2s ease,
        opacity .2s ease;
}

.menu-toggle.is-open span:first-child {
    transform: translateY(4px) rotate(45deg);
}

.menu-toggle.is-open span:last-child {
    transform: translateY(-4px) rotate(-45deg);
}

.mobile-menu {
    display: none;
    background: var(--surface);
    border-top: 1px solid var(--line);
}

.mobile-menu-inner {
    padding-top: 18px;
    padding-bottom: 18px;
    display: grid;
    gap: 2px;
}

.mobile-menu a {
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
    font-weight: 700;
}


/* HERO */

.hero {
    position: relative;
    padding: 48px 0 72px;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    left: -240px;
    top: 120px;
    border-radius: 50%;
    border: 1px solid rgba(18, 50, 77, 0.08);
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, .8fr) minmax(560px, 1.2fr);
    gap: 24px;
    align-items: stretch;
}

.hero-info {
    min-width: 0;
    padding: 50px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(8px);
}

.hero-kicker,
.section-kicker {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--navy);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1.1px;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 620px;
    margin: 26px 0 0;
    font-size: clamp(52px, 5vw, 78px);
    line-height: .96;
    letter-spacing: -3.8px;
    font-weight: 800;
}

.hero-lead {
    max-width: 580px;
    margin: 24px 0 0;
    color: #55606e;
    font-size: 18px;
    line-height: 1.7;
}

.hero-meta {
    margin-top: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr 1.2fr;
    gap: 12px;
}

.hero-meta-item {
    min-height: 92px;
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.hero-meta-item span {
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 11px;
}

.hero-meta-item strong,
.hero-meta-item a {
    color: var(--navy);
    font-size: 16px;
    font-weight: 800;
}

.hero-links {
    margin-top: 28px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.button-main {
    padding: 14px 20px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--navy), var(--navy-soft));
    color: var(--white);
    font-size: 13px;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(18, 50, 77, 0.16);
    transition:
        transform .2s ease,
        box-shadow .2s ease;
}

.button-main:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(18, 50, 77, 0.2);
}

.button-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--navy);
    font-size: 13px;
    font-weight: 800;
}

.button-link span {
    color: var(--accent);
}


/* SLIDER */

.service-slider {
    min-width: 0;
    min-height: 640px;
    display: flex;
    flex-direction: column;
    background: linear-gradient(145deg, #12324d 0%, #173e5f 100%);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 22px 58px rgba(16, 36, 56, 0.14);
}

.slider-stage {
    position: relative;
    flex: 1;
    min-height: 560px;
    overflow: hidden;
}

.service-slide {
    --slide-accent: #f0ad3d;

    position: absolute;
    inset: 0;
    padding: 38px 38px 24px;
    display: flex;
    flex-direction: column;
    color: var(--white);
    opacity: 0;
    visibility: hidden;
    transform: translateX(26px);
    transition:
        opacity .45s ease,
        transform .45s ease,
        visibility .45s ease;
    overflow: hidden;
}

.service-slide::before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    right: -130px;
    top: -120px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.service-slide::after {
    content: "";
    position: absolute;
    width: 290px;
    height: 290px;
    right: -60px;
    top: -50px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 50%;
}

.service-slide.is-active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.service-slide-furniture {
    --slide-accent: #d9c09a;
}

.service-slide-kitchen {
    --slide-accent: #9fd0c8;
}

.service-slide-building {
    --slide-accent: #d89e72;
}

.service-slide-fireworks {
    --slide-accent: #ddb4df;
}

.slide-top {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
}

.slide-icon,
.direction-icon,
.air-contact-icon,
.why-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.03);
}

.slide-icon svg,
.direction-icon svg,
.air-contact-icon svg,
.why-icon svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.slide-icon svg {
    width: 30px;
    height: 30px;
    color: var(--slide-accent);
}

.slide-type {
    color: #c1d0db;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1.3px;
    text-transform: uppercase;
}

.slide-body {
    position: relative;
    z-index: 1;
    margin-top: 28px;
    display: grid;
    grid-template-columns: minmax(0, .95fr) minmax(260px, .85fr);
    gap: 22px;
    align-items: stretch;
}

.slide-copy h2 {
    margin: 0;
    font-size: clamp(42px, 4vw, 60px);
    line-height: 1;
    letter-spacing: -2.8px;
}

.slide-copy p {
    max-width: 500px;
    margin: 20px 0 0;
    color: #d3dce4;
    font-size: 17px;
    line-height: 1.7;
}

.slide-tags {
    margin-top: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.slide-tags span {
    min-height: 34px;
    padding: 0 12px;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.03);
    color: #dde5ea;
    font-size: 11px;
}

.slide-visual {
    min-height: 270px;
    position: relative;
    border-radius: 24px;
    overflow: hidden;
}

.slide-visual-photo {
    background: rgba(255, 255, 255, 0.06);
}

.slide-visual-photo::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(6, 22, 34, 0.04), rgba(6, 22, 34, 0.28));
}

.slide-visual-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-visual-badge {
    position: absolute;
    left: 16px;
    bottom: 16px;
    z-index: 1;
    min-height: 34px;
    padding: 0 12px;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    backdrop-filter: blur(6px);
}

.slide-visual-panel {
    padding: 18px;
    display: grid;
    gap: 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.slide-panel-card {
    padding: 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.05);
}

.slide-panel-card strong {
    display: block;
    font-size: 15px;
    line-height: 1.4;
}

.slide-brand-list {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.slide-brand-list span {
    min-height: 30px;
    padding: 0 10px;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #e4ebf0;
    font-size: 11px;
}

.slide-panel-points {
    display: grid;
    gap: 10px;
}

.slide-panel-points div {
    min-height: 54px;
    padding: 12px 14px;
    display: grid;
    grid-template-columns: 34px 1fr;
    align-items: center;
    gap: 10px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
}

.slide-panel-points b {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: var(--slide-accent);
    font-size: 11px;
}

.slide-panel-points span {
    color: #d6e0e8;
    font-size: 12px;
}

.slide-check-list {
    margin: 14px 0 0;
    padding-left: 18px;
    color: #d6e0e8;
    font-size: 13px;
    line-height: 1.7;
}

.slide-panel-note {
    padding: 16px 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.05);
    color: #d6e0e8;
    font-size: 13px;
    line-height: 1.6;
}

.slide-link {
    position: relative;
    z-index: 1;
    margin-top: auto;
    padding-top: 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 13px;
    font-weight: 800;
}

.slide-link span {
    color: var(--slide-accent);
    font-size: 18px;
    transition: transform .2s ease;
}

.slide-link:hover span {
    transform: translateX(5px);
}

.slider-controls {
    min-height: 82px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 44px 1fr auto 44px;
    align-items: center;
    gap: 16px;
    background: rgba(6, 23, 36, 0.55);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.slider-arrow {
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--white);
    transition:
        background .2s ease,
        transform .2s ease;
}

.slider-arrow:hover {
    background: rgba(255, 255, 255, 0.07);
    transform: translateY(-1px);
}

.slider-dots {
    display: flex;
    align-items: center;
    gap: 8px;
}

.slider-dot {
    width: 34px;
    height: 32px;
    padding: 0;
    border: 0;
    border-bottom: 2px solid transparent;
    background: transparent;
    color: #7f95a7;
    font-size: 10px;
    font-weight: 800;
    transition:
        color .2s ease,
        border-color .2s ease;
}

.slider-dot.is-active {
    color: var(--white);
    border-color: var(--accent);
}

.slider-counter {
    display: flex;
    align-items: baseline;
    gap: 4px;
    color: #8ca0b1;
    font-size: 10px;
}

.slider-counter strong {
    color: var(--white);
    font-size: 16px;
}


/* BRANDS */

.brands-strip,
.why-us,
.air-focus,
.company,
.workflow {
    padding: 96px 0;
}

.brands-strip {
    padding-top: 28px;
    padding-bottom: 40px;
}

.brands-head {
    margin-bottom: 28px;
    text-align: center;
}

.brands-head h2 {
    margin: 18px 0 0;
    font-size: clamp(36px, 3.7vw, 56px);
    line-height: 1;
    letter-spacing: -2.5px;
}

.brands-head p {
    max-width: 700px;
    margin: 18px auto 0;
    color: var(--muted);
    line-height: 1.7;
}

.brands-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.brands-row span {
    min-height: 44px;
    padding: 0 18px;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    color: var(--navy);
    font-size: 13px;
    font-weight: 800;
}


/* COMMON SECTIONS */

.section-head {
    display: grid;
    grid-template-columns: minmax(340px, 1fr) minmax(280px, 460px);
    gap: 80px;
    align-items: end;
    margin-bottom: 42px;
}

.section-head h2 {
    margin: 16px 0 0;
    font-size: clamp(40px, 4.2vw, 60px);
    line-height: 1;
    letter-spacing: -3px;
}

.section-head > p {
    margin: 0;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.7;
}


/* WHY */

.why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.why-card {
    padding: 26px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.why-icon {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    background: var(--accent-soft);
    color: var(--accent);
}

.why-icon svg {
    width: 28px;
    height: 28px;
}

.why-card h3 {
    margin: 20px 0 10px;
    color: var(--navy);
    font-size: 24px;
    line-height: 1.1;
}

.why-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}


/* AIR */

.air-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
    align-items: start;
}

.air-service-list {
    display: grid;
    gap: 14px;
}

.air-service-list a {
    min-height: 96px;
    padding: 20px 22px;
    display: grid;
    grid-template-columns: 52px 1fr 24px;
    align-items: center;
    gap: 16px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    transition:
        transform .2s ease,
        box-shadow .2s ease;
}

.air-service-list a:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(15, 32, 48, 0.08);
}

.service-number {
    color: #96a3af;
    font-size: 10px;
    font-weight: 800;
}

.air-service-list strong {
    display: block;
    color: var(--navy);
    font-size: 18px;
}

.air-service-list small {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.55;
}

.service-arrow {
    color: var(--accent);
    font-size: 18px;
}

.air-contact {
    position: sticky;
    top: 110px;
    padding: 30px;
    background: linear-gradient(145deg, var(--navy), var(--navy-soft));
    border-radius: var(--radius-lg);
    color: var(--white);
    box-shadow: 0 18px 42px rgba(18, 50, 77, 0.14);
}

.air-contact-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 34px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: var(--accent);
}

.air-contact-icon svg {
    width: 30px;
    height: 30px;
}

.air-contact > span {
    color: #b8c6d1;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1.1px;
    text-transform: uppercase;
}

.air-contact h3 {
    margin: 14px 0 18px;
    font-size: 30px;
    line-height: 1.08;
    letter-spacing: -1.4px;
}

.air-contact p {
    margin: 0 0 24px;
    color: #d4dde4;
    font-size: 13px;
    line-height: 1.65;
}

.air-contact > a:not(.air-contact-button) {
    display: block;
    margin-bottom: 18px;
    font-size: 17px;
    font-weight: 800;
}

.air-contact-button {
    min-height: 46px;
    padding: 0 16px;
    display: inline-flex;
    align-items: center;
    border-radius: 14px;
    background: var(--accent);
    color: #111820;
    font-size: 12px;
    font-weight: 800;
}


/* COMPANY */

.direction-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.direction-list > a {
    min-height: 138px;
    padding: 24px;
    display: grid;
    grid-template-columns: 58px 1fr 22px;
    align-items: center;
    gap: 18px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    transition:
        transform .2s ease,
        box-shadow .2s ease;
}

.direction-list > a:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(15, 32, 48, 0.08);
}

.direction-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    color: var(--navy);
}

.direction-icon svg {
    width: 28px;
    height: 28px;
}

.direction-list strong {
    color: var(--navy);
    font-size: 21px;
}

.direction-list p {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.55;
}

.direction-arrow {
    color: var(--accent);
    font-size: 18px;
}


/* WORKFLOW */

.workflow-track {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.workflow-step {
    min-height: 220px;
    padding: 26px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.workflow-step > span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 11px;
    font-weight: 800;
}

.workflow-step strong {
    display: block;
    margin-top: 54px;
    color: var(--navy);
    font-size: 20px;
}

.workflow-step p {
    max-width: 240px;
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.65;
}


/* REQUEST */

.request {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
    background: linear-gradient(145deg, #102d47 0%, #0a2033 100%);
    color: var(--white);
}

.request::before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    right: -140px;
    bottom: -210px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.request-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: 90px;
}

.request .section-kicker {
    color: var(--accent);
    background: rgba(255, 255, 255, 0.08);
}

.request-info h2 {
    margin: 18px 0 0;
    font-size: clamp(42px, 4.2vw, 60px);
    line-height: 1;
    letter-spacing: -3px;
}

.request-info > p {
    max-width: 390px;
    margin: 24px 0 34px;
    color: #c0ccd6;
    line-height: 1.7;
}

.request-contact {
    padding-top: 22px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.request-contact span {
    color: #90a4b4;
    font-size: 11px;
}

.request-contact a {
    font-size: 20px;
    font-weight: 800;
}

.request-form {
    padding: 30px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(8px);
    display: grid;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.request-form label {
    display: grid;
    gap: 9px;
}

.request-form label > span {
    color: #aac0d0;
    font-size: 11px;
}

.request-form input,
.request-form select,
.request-form textarea {
    width: 100%;
    padding: 13px 0;
    border: 0;
    border-bottom: 1px solid #4b6072;
    border-radius: 0;
    outline: 0;
    background: transparent;
    color: var(--white);
    transition: border-color .2s ease;
}

.request-form input:focus,
.request-form select:focus,
.request-form textarea:focus {
    border-color: var(--accent);
}

.request-form select option {
    color: var(--text);
}

.request-form textarea {
    min-height: 110px;
    resize: vertical;
}

.request-form button {
    width: fit-content;
    min-width: 210px;
    min-height: 48px;
    padding: 0 18px;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    border: 0;
    border-radius: 14px;
    background: var(--accent);
    color: #111820;
    font-size: 12px;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(10, 29, 45, 0.16);
    transition:
        transform .2s ease,
        box-shadow .2s ease;
}

.request-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(10, 29, 45, 0.22);
}


/* FOOTER */

.site-footer {
    padding: 54px 0 25px;
    background: #061622;
    color: #c4d0d8;
    border-top: 1px solid #203341;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 48px;
}

.site-footer .brand-sign {
    color: var(--white);
}

.footer-brand p {
    max-width: 280px;
    margin: 14px 0 0;
    color: #7e93a1;
    font-size: 12px;
    line-height: 1.65;
}

.footer-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 11px 30px;
}

.footer-nav a {
    font-size: 12px;
    transition: color .2s ease;
}

.footer-nav a:hover {
    color: var(--white);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-contact span {
    color: #7c90a0;
    font-size: 11px;
}

.footer-contact a {
    color: var(--white);
    font-size: 13px;
    font-weight: 700;
}

.footer-bottom {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #203341;
    color: #5f7585;
    font-size: 11px;
}


/* REVEAL */

[data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity .65s ease,
        transform .65s ease;
}

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


/* TABLET */

@media (max-width: 1180px) {
    .main-nav {
        gap: 18px;
    }

    .header-phone {
        display: none;
    }

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

    .hero-info {
        padding: 42px;
    }

    .service-slider {
        min-height: 0;
    }

    .slider-stage {
        min-height: 520px;
    }

    .slide-body {
        grid-template-columns: 1fr;
    }

    .slide-visual {
        min-height: 240px;
    }

    .air-layout,
    .request-grid {
        grid-template-columns: 1fr;
    }

    .air-contact {
        position: static;
    }

    .workflow-track,
    .why-grid,
    .direction-list {
        grid-template-columns: 1fr 1fr;
    }

    .section-head {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}


/* MOBILE NAV */

@media (max-width: 880px) {
    .topbar {
        display: none;
    }

    .main-nav,
    .header-actions {
        display: none;
    }

    .menu-toggle {
        margin-left: auto;
        display: block;
    }

    .mobile-menu.is-open {
        display: block;
    }

    .hero {
        padding-top: 26px;
        padding-bottom: 54px;
    }

    .hero-grid {
        gap: 20px;
    }

    .hero-info {
        padding: 34px 28px;
    }

    .hero h1 {
        font-size: 56px;
    }

    .hero-meta {
        grid-template-columns: 1fr 1fr;
    }

    .section-head {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .why-grid,
    .workflow-track,
    .direction-list {
        grid-template-columns: 1fr;
    }
}


/* PHONE */

@media (max-width: 620px) {
    .container {
        width: min(100% - 28px, var(--container));
    }

    .header-inner {
        min-height: 68px;
    }

    .brand-sign {
        font-size: 24px;
    }

    .hero::before {
        display: none;
    }

    .hero-info {
        padding: 28px 22px;
        border-radius: 24px;
    }

    .hero-kicker,
    .section-kicker {
        min-height: 30px;
        padding: 0 12px;
        font-size: 10px;
    }

    .hero h1 {
        margin-top: 22px;
        font-size: 44px;
        letter-spacing: -2.6px;
    }

    .hero-lead {
        font-size: 15px;
    }

    .hero-meta {
        grid-template-columns: 1fr;
    }

    .hero-links {
        flex-direction: column;
        align-items: flex-start;
    }

    .service-slider {
        border-radius: 24px;
    }

    .slider-stage {
        min-height: 620px;
    }

    .service-slide {
        padding: 24px 20px 20px;
    }

    .slide-copy h2 {
        font-size: 38px;
        letter-spacing: -2px;
    }

    .slide-copy p {
        font-size: 14px;
    }

    .slide-visual {
        min-height: 220px;
    }

    .slider-controls {
        min-height: 72px;
        padding: 0 14px;
        grid-template-columns: 38px 1fr 38px;
        gap: 10px;
    }

    .slider-counter {
        display: none;
    }

    .slider-dots {
        justify-content: center;
    }

    .slider-dot {
        width: 28px;
    }

    .brands-strip,
    .why-us,
    .air-focus,
    .company,
    .workflow,
    .request {
        padding: 72px 0;
    }

    .brands-head h2,
    .section-head h2,
    .request-info h2 {
        font-size: 38px;
        letter-spacing: -2px;
    }

    .air-service-list a {
        grid-template-columns: 42px 1fr 20px;
        padding: 18px;
    }

    .air-contact,
    .why-card,
    .workflow-step {
        padding: 22px;
    }

    .request-form {
        padding: 22px;
        border-radius: 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 34px;
    }

    .footer-nav {
        grid-template-columns: 1fr;
    }
}


/* REDUCED MOTION */

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

    *,
    *::before,
    *::after {
        transition-duration: 0s;
        animation-duration: 0s;
    }

    [data-reveal] {
        opacity: 1;
        transform: none;
    }
}