:root {
    --navy-950: #041320;
    --navy-900: #071b2e;
    --navy-800: #0c2b46;
    --blue-600: #008fc7;
    --cyan-400: #29c4dc;
    --cyan-300: #63d8e8;
    --ice-100: #f2f8fb;
    --ice-200: #e6f0f5;
    --line: #dce8ef;
    --text: #536879;
    --white: #ffffff;
    --heading: "Nunito", sans-serif;
    --body: "Rubik", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.home-page {
    margin: 0;
    color: var(--navy-900);
    background: var(--white);
    font-family: var(--body);
    -webkit-font-smoothing: antialiased;
}

.home-page.menu-open {
    overflow: hidden;
}

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

.home-page a {
    color: inherit;
    text-decoration: none;
}

.home-page button,
.home-page a {
    -webkit-tap-highlight-color: transparent;
}

.skip-link {
    position: fixed;
    top: -100px;
    left: 20px;
    z-index: 9999;
    padding: 12px 18px;
    border-radius: 0 0 8px 8px;
    color: var(--white) !important;
    background: var(--blue-600);
}

.skip-link:focus {
    top: 0;
}

.site-header {
    position: absolute;
    inset: 0 0 auto;
    z-index: 1000;
}

.topbar {
    height: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
    color: rgba(255, 255, 255, .7);
    background: rgba(4, 19, 32, .55);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    font-size: .74rem;
}

.topbar p {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 0;
}

.topbar p span {
    color: var(--cyan-400);
    font-size: .56rem;
}

.topbar-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

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

.topbar a:hover {
    color: var(--cyan-300);
}

.main-nav {
    height: 88px;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
    transition: background .25s ease, box-shadow .25s ease, height .25s ease;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.brand img {
    width: auto;
    height: 52px;
    padding: 8px 14px;
    border-radius: 5px;
    background: rgba(255, 255, 255, .96);
    object-fit: contain;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-menu > a:not(.nav-cta) {
    position: relative;
    padding: 33px 0 31px;
    color: rgba(255, 255, 255, .78);
    font-family: var(--heading);
    font-size: .88rem;
    font-weight: 700;
    transition: color .2s ease;
}

.nav-menu > a:not(.nav-cta)::after {
    position: absolute;
    right: 0;
    bottom: -1px;
    left: 0;
    height: 2px;
    content: "";
    transform: scaleX(0);
    background: var(--cyan-400);
    transition: transform .2s ease;
}

.nav-menu > a:not(.nav-cta):hover,
.nav-menu > a.active {
    color: var(--white);
}

.nav-menu > a:not(.nav-cta):hover::after,
.nav-menu > a.active::after {
    transform: scaleX(1);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 17px;
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 7px;
    color: var(--white) !important;
    font-family: var(--heading);
    font-size: .83rem;
    font-weight: 800;
    transition: background .2s ease, border-color .2s ease;
}

.nav-cta:hover {
    border-color: var(--cyan-400);
    background: rgba(41, 196, 220, .12);
}

.nav-toggle {
    display: none;
}

.site-header.scrolled .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    height: 72px;
    border-bottom: 0;
    background: rgba(255, 255, 255, .97);
    box-shadow: 0 9px 30px rgba(4, 19, 32, .09);
    backdrop-filter: blur(15px);
}

.site-header.scrolled .brand img {
    height: 46px;
    padding: 4px 9px;
}

.site-header.scrolled .nav-menu > a:not(.nav-cta) {
    padding: 26px 0 24px;
    color: #4f6577;
}

.site-header.scrolled .nav-menu > a:not(.nav-cta):hover,
.site-header.scrolled .nav-menu > a.active {
    color: var(--navy-900);
}

.site-header.scrolled .nav-cta {
    border-color: var(--navy-900);
    color: var(--white) !important;
    background: var(--navy-900);
}

/* Hero */
.hero-section {
    position: relative;
    min-height: 900px;
    overflow: hidden;
    color: var(--white);
    background:
        radial-gradient(circle at 77% 38%, rgba(0, 143, 199, .26), transparent 27%),
        radial-gradient(circle at 24% 18%, rgba(41, 196, 220, .08), transparent 25%),
        linear-gradient(122deg, #03111d 0%, #061a2b 56%, #0a2941 100%);
}

.hero-section::before {
    position: absolute;
    inset: 0;
    content: "";
    opacity: .36;
    background-image: radial-gradient(rgba(255, 255, 255, .16) .7px, transparent .7px);
    background-size: 20px 20px;
    mask-image: linear-gradient(to right, transparent 0%, black 70%, black 100%);
}

.hero-grid-lines {
    position: absolute;
    top: 0;
    right: 0;
    width: 48%;
    height: 100%;
    opacity: .16;
    background-image: linear-gradient(rgba(255, 255, 255, .15) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .15) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: radial-gradient(circle at center, black 0%, transparent 70%);
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(460px, .98fr);
    align-items: center;
    gap: 70px;
    min-height: 900px;
    padding-top: 142px;
    padding-bottom: 84px;
}

.eyebrow,
.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--blue-600);
    font-family: var(--heading);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .15em;
    text-transform: uppercase;
}

.eyebrow {
    color: var(--cyan-400);
}

.eyebrow > span,
.section-kicker::before {
    width: 28px;
    height: 2px;
    content: "";
    background: currentColor;
}

.hero-content h1 {
    max-width: 720px;
    margin: 20px 0 24px;
    color: var(--white);
    font-family: var(--heading);
    font-size: clamp(3.55rem, 5.5vw, 5.85rem);
    font-weight: 800;
    line-height: .98;
    letter-spacing: -.055em;
}

.hero-content h1 em {
    color: var(--cyan-400);
    font-style: normal;
}

.hero-content > p {
    max-width: 640px;
    margin: 0;
    color: rgba(255, 255, 255, .67);
    font-size: 1.05rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 13px;
    margin-top: 36px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-height: 54px;
    padding: 14px 23px;
    border-radius: 8px;
    font-family: var(--heading);
    font-size: .87rem;
    font-weight: 800;
    transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

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

.button-primary {
    color: var(--navy-950) !important;
    background: var(--cyan-400);
    box-shadow: 0 14px 35px rgba(41, 196, 220, .2);
}

.button-primary:hover {
    background: var(--cyan-300);
}

.button-ghost {
    border: 1px solid rgba(255, 255, 255, .19);
    color: var(--white) !important;
    background: rgba(255, 255, 255, .04);
}

.button-ghost:hover {
    border-color: rgba(255, 255, 255, .45);
    background: rgba(255, 255, 255, .08);
}

.play-icon {
    display: grid;
    width: 24px;
    height: 24px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, .45);
    border-radius: 50%;
    font-size: .9rem;
}

.hero-proof {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    max-width: 650px;
    margin-top: 54px;
    padding-top: 27px;
    border-top: 1px solid rgba(255, 255, 255, .12);
}

.hero-proof div {
    padding-right: 18px;
}

.hero-proof div + div {
    padding-left: 24px;
    border-left: 1px solid rgba(255, 255, 255, .12);
}

.hero-proof strong,
.hero-proof span {
    display: block;
}

.hero-proof strong {
    margin-bottom: 5px;
    color: var(--white);
    font-family: var(--heading);
    font-size: 1.08rem;
    font-weight: 800;
}

.hero-proof span {
    color: rgba(255, 255, 255, .48);
    font-size: .71rem;
}

.hero-visual {
    position: relative;
    min-height: 590px;
}

.product-stage {
    position: absolute;
    top: 42px;
    right: 8px;
    width: min(100%, 505px);
    padding: 21px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 22px;
    background: linear-gradient(145deg, rgba(255, 255, 255, .97), rgba(230, 240, 245, .94));
    box-shadow: 0 35px 80px rgba(0, 0, 0, .35);
    transform: rotate(1.5deg);
}

.product-stage::before {
    position: absolute;
    inset: 0;
    content: "";
    background: linear-gradient(135deg, rgba(255, 255, 255, .7), transparent 45%);
    pointer-events: none;
}

.stage-label {
    position: absolute;
    top: 37px;
    left: 38px;
    z-index: 2;
    padding: 8px 11px;
    border-radius: 999px;
    color: var(--white);
    background: rgba(7, 27, 46, .84);
    font-family: var(--heading);
    font-size: .64rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.product-stage > img {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 13px;
    object-fit: cover;
}

.stage-caption {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 6px 3px;
    color: var(--navy-900);
}

.stage-caption span,
.stage-caption strong {
    display: block;
}

.stage-caption span {
    margin-bottom: 4px;
    color: var(--blue-600);
    font-family: var(--heading);
    font-size: .64rem;
    font-weight: 800;
    letter-spacing: .11em;
    text-transform: uppercase;
}

.stage-caption strong {
    font-family: var(--heading);
    font-size: 1.28rem;
}

.stage-caption a {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 50%;
    color: var(--white);
    background: var(--navy-900);
    font-size: 1.1rem;
}

.visual-orbit {
    position: absolute;
    border: 1px solid rgba(41, 196, 220, .2);
    border-radius: 50%;
}

.orbit-one {
    width: 600px;
    height: 600px;
    top: 4px;
    left: 5px;
}

.orbit-two {
    width: 460px;
    height: 460px;
    top: 74px;
    left: 75px;
}

.floating-chip {
    position: absolute;
    z-index: 4;
    border: 1px solid rgba(255, 255, 255, .18);
    color: rgba(255, 255, 255, .88);
    background: rgba(7, 27, 46, .8);
    box-shadow: 0 16px 45px rgba(0, 0, 0, .24);
    backdrop-filter: blur(12px);
}

.chip-top {
    top: 10px;
    left: 0;
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 11px 15px;
    border-radius: 999px;
    font-size: .72rem;
}

.chip-top span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #4bda8a;
    box-shadow: 0 0 0 5px rgba(75, 218, 138, .12);
}

.chip-bottom {
    right: -7px;
    bottom: 20px;
    padding: 16px 20px;
    border-radius: 12px;
}

.chip-bottom strong,
.chip-bottom small {
    display: block;
}

.chip-bottom strong {
    color: var(--cyan-400);
    font-family: var(--heading);
    font-size: 1.18rem;
}

.chip-bottom small {
    margin-top: 2px;
    color: rgba(255, 255, 255, .5);
    font-size: .65rem;
}

.scroll-cue {
    position: absolute;
    bottom: 31px;
    left: 50%;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, .44) !important;
    font-family: var(--heading);
    font-size: .6rem;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
}

.scroll-cue span {
    width: 1px;
    height: 25px;
    background: linear-gradient(var(--cyan-400), transparent);
}

/* Trust strip */
.trust-strip {
    border-bottom: 1px solid var(--line);
    background: var(--white);
}

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

.trust-item {
    display: flex;
    align-items: center;
    gap: 18px;
    min-height: 118px;
    padding: 24px 0;
}

.trust-item + .trust-item {
    padding-left: 38px;
    border-left: 1px solid var(--line);
}

.trust-number {
    color: var(--cyan-400);
    font-family: var(--heading);
    font-size: .72rem;
    font-weight: 800;
}

.trust-item strong,
.trust-item small {
    display: block;
}

.trust-item strong {
    color: var(--navy-900);
    font-family: var(--heading);
    font-size: .96rem;
    font-weight: 800;
}

.trust-item small {
    margin-top: 4px;
    color: #8394a2;
    font-size: .72rem;
}

/* Shared sections */
.expertise-section,
.featured-products,
.about-teaser {
    padding: 112px 0;
}

.section-heading h2,
.engineering-copy h2,
.about-copy h2,
.cta-card h2 {
    margin: 13px 0 0;
    color: var(--navy-900);
    font-family: var(--heading);
    font-size: clamp(2.25rem, 4vw, 3.5rem);
    font-weight: 800;
    line-height: 1.09;
    letter-spacing: -.04em;
}

.heading-split {
    display: grid;
    grid-template-columns: 1.45fr .7fr;
    align-items: end;
    gap: 80px;
    margin-bottom: 52px;
}

.heading-split > p {
    margin: 0 0 5px;
    color: var(--text);
    font-size: .94rem;
    line-height: 1.75;
}

.expertise-grid {
    display: grid;
    grid-template-columns: 1.25fr .875fr .875fr;
    gap: 16px;
}

.expertise-card {
    position: relative;
    min-height: 470px;
    overflow: hidden;
    border-radius: 18px;
    color: var(--white) !important;
    background: var(--navy-900);
}

.expertise-image,
.expertise-overlay {
    position: absolute;
    inset: 0;
}

.expertise-image {
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    transition: transform .55s ease;
}

.image-control {
    background-image: url("../files/Seyir Feneri Paneli/10.jpg");
}

.image-power {
    background-image: url("../files/Yuksek Guclu Dimmer/15.jpeg");
}

.image-converter {
    background-image: url("../files/RPM Konvertörü/18.jpg");
}

.expertise-overlay {
    background: linear-gradient(180deg, rgba(4, 19, 32, .05) 15%, rgba(4, 19, 32, .94) 93%);
}

.expertise-card:hover .expertise-image {
    transform: scale(1.045);
}

.expertise-content {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2;
    padding: 31px;
}

.expertise-content > span,
.featured-body > span {
    display: block;
    margin-bottom: 10px;
    color: var(--cyan-400);
    font-family: var(--heading);
    font-size: .65rem;
    font-weight: 800;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.expertise-content h3 {
    margin: 0;
    color: var(--white);
    font-family: var(--heading);
    font-size: 1.5rem;
    font-weight: 800;
}

.expertise-content p {
    max-width: 390px;
    margin: 12px 0 20px;
    color: rgba(255, 255, 255, .62);
    font-size: .82rem;
    line-height: 1.6;
}

.expertise-content strong {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--heading);
    font-size: .76rem;
    font-weight: 800;
}

.expertise-content b {
    color: var(--cyan-400);
    font-size: 1.05rem;
}

/* Featured products */
.featured-products {
    background: var(--ice-100);
}

.featured-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 48px;
}

.featured-heading h2 {
    max-width: 750px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--navy-900) !important;
    font-family: var(--heading);
    font-size: .8rem;
    font-weight: 800;
    white-space: nowrap;
}

.text-link span {
    color: var(--blue-600);
    font-size: 1.1rem;
    transition: transform .2s ease;
}

.text-link:hover span {
    transform: translateX(4px);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.featured-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 17px;
    background: var(--white);
    box-shadow: 0 14px 34px rgba(4, 19, 32, .045);
    transition: transform .25s ease, box-shadow .25s ease;
}

.featured-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px rgba(4, 19, 32, .1);
}

.featured-media {
    display: block;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    margin: 15px 15px 0;
    border-radius: 11px;
    background: linear-gradient(145deg, #edf4f7, #fff);
}

.featured-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}

.featured-card:hover .featured-media img {
    transform: scale(1.04);
}

.featured-body {
    padding: 25px 27px 28px;
}

.featured-body h3 {
    margin: 0;
    color: var(--navy-900);
    font-family: var(--heading);
    font-size: 1.27rem;
    font-weight: 800;
}

.featured-body p {
    min-height: 48px;
    margin: 12px 0 22px;
    color: var(--text);
    font-size: .82rem;
    line-height: 1.65;
}

.featured-body > a {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--navy-900);
    font-family: var(--heading);
    font-size: .74rem;
    font-weight: 800;
    text-transform: uppercase;
}

.featured-body b {
    color: var(--blue-600);
    font-size: 1rem;
}

/* Process */
.engineering-section {
    position: relative;
    overflow: hidden;
    padding: 112px 0;
    color: var(--white);
    background: linear-gradient(128deg, var(--navy-950), var(--navy-800));
}

.engineering-pattern {
    position: absolute;
    top: -170px;
    right: -160px;
    width: 650px;
    height: 650px;
    border: 1px solid rgba(41, 196, 220, .14);
    border-radius: 50%;
    box-shadow: 0 0 0 85px rgba(41, 196, 220, .025), 0 0 0 170px rgba(41, 196, 220, .018);
}

.engineering-layout {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: .82fr 1.18fr;
    gap: 110px;
}

.section-kicker.light {
    color: var(--cyan-400);
}

.engineering-copy h2,
.cta-card h2 {
    color: var(--white);
}

.engineering-copy > p {
    margin: 23px 0 31px;
    color: rgba(255, 255, 255, .59);
    font-size: .93rem;
    line-height: 1.8;
}

.button-light {
    color: var(--navy-900) !important;
    background: var(--white);
}

.process-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    margin: 0;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 15px;
    background: rgba(255, 255, 255, .12);
    list-style: none;
    overflow: hidden;
}

.process-list li {
    display: flex;
    gap: 17px;
    min-height: 190px;
    padding: 27px;
    background: rgba(255, 255, 255, .045);
}

.process-list > li > span {
    color: var(--cyan-400);
    font-family: var(--heading);
    font-size: .69rem;
    font-weight: 800;
}

.process-list h3 {
    margin: 0;
    color: var(--white);
    font-family: var(--heading);
    font-size: 1.07rem;
    font-weight: 800;
}

.process-list p {
    margin: 10px 0 0;
    color: rgba(255, 255, 255, .54);
    font-size: .77rem;
    line-height: 1.65;
}

/* About */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 100px;
}

.about-visual {
    position: relative;
    padding: 0 0 34px 34px;
}

.about-visual::before {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 62%;
    height: 68%;
    content: "";
    border-radius: 17px;
    background: var(--ice-200);
}

.about-image-main {
    position: relative;
    z-index: 2;
    overflow: hidden;
    aspect-ratio: 1.05 / 1;
    border-radius: 18px;
    background: var(--ice-100);
}

.about-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-badge {
    position: absolute;
    right: -28px;
    bottom: 0;
    z-index: 3;
    padding: 21px 26px;
    border-radius: 12px;
    color: var(--white);
    background: var(--navy-900);
    box-shadow: 0 18px 40px rgba(4, 19, 32, .18);
}

.about-badge strong,
.about-badge span {
    display: block;
}

.about-badge strong {
    color: var(--cyan-400);
    font-family: var(--heading);
    font-size: 1rem;
    letter-spacing: .12em;
}

.about-badge span {
    margin-top: 3px;
    color: rgba(255, 255, 255, .55);
    font-size: .64rem;
}

.about-copy > p {
    margin: 23px 0;
    color: var(--text);
    font-size: .93rem;
    line-height: 1.8;
}

.about-copy ul {
    display: grid;
    gap: 13px;
    margin: 0 0 29px;
    padding: 0;
    list-style: none;
    color: #40586a;
    font-size: .86rem;
}

.about-copy li {
    display: flex;
    align-items: center;
    gap: 11px;
}

.about-copy li span {
    display: grid;
    width: 22px;
    height: 22px;
    place-items: center;
    border-radius: 50%;
    color: var(--white);
    background: var(--blue-600);
    font-size: .67rem;
}

/* CTA */
.contact-cta {
    padding: 0 0 100px;
}

.cta-card {
    display: grid;
    grid-template-columns: 1.45fr .55fr;
    align-items: center;
    gap: 70px;
    padding: 60px 66px;
    overflow: hidden;
    border-radius: 20px;
    background:
        radial-gradient(circle at 95% 10%, rgba(41, 196, 220, .2), transparent 25%),
        linear-gradient(120deg, var(--navy-950), var(--navy-800));
}

.cta-card h2 {
    max-width: 820px;
    font-size: clamp(2rem, 3.7vw, 3.25rem);
}

.cta-actions {
    display: flex;
    align-items: stretch;
    flex-direction: column;
    gap: 14px;
}

.button-cyan {
    color: var(--navy-950) !important;
    background: var(--cyan-400);
}

.cta-mail {
    color: rgba(255, 255, 255, .64) !important;
    font-size: .78rem;
    text-align: center;
}

/* Footer */
.site-footer {
    padding: 76px 0 0;
    color: rgba(255, 255, 255, .55);
    background: var(--navy-950);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.35fr .65fr .7fr 1fr;
    gap: 70px;
    padding-bottom: 62px;
}

.footer-brand img {
    width: 165px;
    height: 62px;
    padding: 9px 14px;
    border-radius: 5px;
    background: var(--white);
    object-fit: contain;
}

.footer-brand p {
    max-width: 330px;
    margin: 21px 0 0;
    font-size: .78rem;
    line-height: 1.75;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 11px;
}

.footer-column h3 {
    margin: 0 0 9px;
    color: var(--white);
    font-family: var(--heading);
    font-size: .86rem;
    font-weight: 800;
}

.footer-column a,
.footer-column p {
    margin: 0;
    color: rgba(255, 255, 255, .5);
    font-size: .73rem;
    line-height: 1.7;
    transition: color .2s ease;
}

.footer-column a:hover {
    color: var(--cyan-400);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 70px;
    border-top: 1px solid rgba(255, 255, 255, .09);
    font-size: .68rem;
}

.footer-bottom p {
    margin: 0;
}

.footer-bottom a {
    color: rgba(255, 255, 255, .55);
}

.whatsapp-float,
.back-top {
    position: fixed;
    right: 26px;
    z-index: 990;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: 50%;
    box-shadow: 0 12px 30px rgba(4, 19, 32, .2);
}

.whatsapp-float {
    bottom: 90px;
    width: 54px;
    height: 54px;
    color: var(--white) !important;
    background: #25d366;
    font-family: var(--heading);
    font-size: .68rem;
    font-weight: 800;
}

.back-top {
    bottom: 26px;
    width: 44px;
    height: 44px;
    color: var(--white);
    background: var(--blue-600);
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
}

.back-top.visible {
    opacity: 1;
    transform: none;
    pointer-events: auto;
}

@media (max-width: 1199.98px) {
    .nav-menu {
        gap: 20px;
    }

    .hero-inner {
        grid-template-columns: 1fr 440px;
        gap: 40px;
    }

    .product-stage {
        width: 430px;
    }

    .hero-content h1 {
        font-size: 4.5rem;
    }

    .expertise-grid {
        grid-template-columns: 1.1fr .95fr .95fr;
    }
}

@media (max-width: 991.98px) {
    .topbar {
        display: none;
    }

    .site-header {
        position: absolute;
    }

    .main-nav,
    .site-header.scrolled .main-nav {
        height: 74px;
        border-bottom: 1px solid var(--line);
        background: rgba(255, 255, 255, .98);
        box-shadow: none;
    }

    .site-header.scrolled .main-nav {
        position: fixed;
    }

    .brand img,
    .site-header.scrolled .brand img {
        height: 47px;
        padding: 5px 8px;
    }

    .nav-toggle {
        display: flex;
        width: 42px;
        height: 42px;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        gap: 5px;
        border: 1px solid var(--line);
        border-radius: 7px;
        background: var(--white);
    }

    .nav-toggle > span:not(.visually-hidden) {
        width: 19px;
        height: 2px;
        background: var(--navy-900);
        transition: transform .2s ease, opacity .2s ease;
    }

    .nav-toggle[aria-expanded="true"] > span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle[aria-expanded="true"] > span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle[aria-expanded="true"] > span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .nav-menu {
        position: absolute;
        top: 74px;
        right: 0;
        left: 0;
        display: flex;
        align-items: stretch;
        flex-direction: column;
        gap: 0;
        max-height: 0;
        padding: 0 max(24px, calc((100vw - 720px) / 2));
        overflow: hidden;
        background: var(--white);
        box-shadow: 0 20px 35px rgba(4, 19, 32, .12);
        transition: max-height .3s ease, padding .3s ease;
    }

    .nav-menu.open {
        max-height: 620px;
        padding-top: 14px;
        padding-bottom: 20px;
    }

    .nav-menu > a:not(.nav-cta),
    .site-header.scrolled .nav-menu > a:not(.nav-cta) {
        padding: 13px 2px;
        border-bottom: 1px solid #eef3f6;
        color: var(--navy-900);
    }

    .nav-menu > a:not(.nav-cta)::after {
        display: none;
    }

    .nav-cta,
    .site-header.scrolled .nav-cta {
        justify-content: center;
        margin-top: 12px;
        border-color: var(--navy-900);
        background: var(--navy-900);
    }

    .hero-section,
    .hero-inner {
        min-height: auto;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 50px;
        padding-top: 150px;
        padding-bottom: 105px;
    }

    .hero-content {
        text-align: center;
    }

    .eyebrow,
    .hero-actions {
        justify-content: center;
    }

    .hero-content > p,
    .hero-content h1,
    .hero-proof {
        margin-right: auto;
        margin-left: auto;
    }

    .hero-visual {
        min-height: 510px;
    }

    .product-stage {
        top: 0;
        right: 50%;
        width: 430px;
        transform: translateX(50%) rotate(1deg);
    }

    .orbit-one,
    .orbit-two {
        left: 50%;
        transform: translateX(-50%);
    }

    .chip-top {
        left: calc(50% - 260px);
    }

    .chip-bottom {
        right: calc(50% - 255px);
    }

    .heading-split,
    .engineering-layout,
    .about-layout,
    .cta-card {
        grid-template-columns: 1fr;
    }

    .heading-split {
        gap: 25px;
    }

    .heading-split > p {
        max-width: 660px;
    }

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

    .expertise-card.card-large {
        grid-column: 1 / -1;
    }

    .engineering-layout {
        gap: 50px;
    }

    .about-layout {
        gap: 70px;
    }

    .about-visual {
        max-width: 650px;
        margin: auto;
    }

    .cta-card {
        gap: 35px;
    }

    .cta-actions {
        max-width: 330px;
    }

    .footer-grid {
        grid-template-columns: 1.3fr .7fr .7fr;
        gap: 45px;
    }

    .footer-contact {
        grid-column: 1 / -1;
    }
}

@media (max-width: 767.98px) {
    .hero-inner {
        padding-top: 130px;
    }

    .hero-content h1 {
        font-size: clamp(3rem, 12vw, 4rem);
    }

    .hero-content > p {
        font-size: .95rem;
    }

    .hero-proof {
        grid-template-columns: 1fr;
        gap: 18px;
        max-width: 390px;
        text-align: left;
    }

    .hero-proof div,
    .hero-proof div + div {
        padding: 0 0 0 18px;
        border: 0;
        border-left: 2px solid rgba(41, 196, 220, .35);
    }

    .hero-visual {
        min-height: 440px;
    }

    .product-stage {
        width: min(88vw, 390px);
    }

    .chip-top {
        left: 3px;
    }

    .chip-bottom {
        right: 3px;
        bottom: 5px;
    }

    .orbit-one {
        width: 470px;
        height: 470px;
    }

    .orbit-two {
        width: 360px;
        height: 360px;
    }

    .trust-grid,
    .featured-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .trust-item,
    .trust-item + .trust-item {
        min-height: 92px;
        padding: 20px 0;
        border: 0;
        border-bottom: 1px solid var(--line);
    }

    .expertise-section,
    .featured-products,
    .about-teaser,
    .engineering-section {
        padding: 80px 0;
    }

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

    .expertise-card.card-large {
        grid-column: auto;
    }

    .expertise-card {
        min-height: 420px;
    }

    .featured-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .featured-body p {
        min-height: 0;
    }

    .process-list {
        grid-template-columns: 1fr;
    }

    .process-list li {
        min-height: 150px;
    }

    .about-layout {
        gap: 55px;
    }

    .about-badge {
        right: 0;
    }

    .cta-card {
        margin-right: 12px;
        margin-left: 12px;
        padding: 44px 28px;
    }

    .contact-cta {
        padding-bottom: 70px;
    }

    .footer-grid {
        gap: 35px;
    }

    .footer-contact {
        grid-column: auto;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 7px;
        padding: 16px 0;
    }
}

@media (max-width: 575.98px) {
    .nav-menu {
        padding-right: 24px;
        padding-left: 24px;
    }

    .hero-inner {
        padding-top: 122px;
        padding-bottom: 80px;
    }

    .eyebrow {
        font-size: .62rem;
        letter-spacing: .1em;
    }

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

    .button {
        width: 100%;
    }

    .hero-visual {
        min-height: 405px;
    }

    .product-stage {
        width: 92vw;
        padding: 13px;
        border-radius: 16px;
    }

    .stage-label {
        top: 25px;
        left: 25px;
    }

    .stage-caption {
        padding: 15px 4px 2px;
    }

    .chip-top {
        top: -22px;
    }

    .chip-bottom {
        bottom: -3px;
        padding: 12px 15px;
    }

    .section-heading h2,
    .engineering-copy h2,
    .about-copy h2,
    .cta-card h2 {
        font-size: 2.15rem;
    }

    .expertise-content {
        padding: 25px;
    }

    .about-visual {
        padding: 0 0 24px 18px;
    }

    .about-badge {
        padding: 15px 18px;
    }

    .whatsapp-float,
    .back-top {
        right: 16px;
    }
}

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

    *,
    *::before,
    *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}