:root {
    --navy: #0f223d;
    --navy-light: #29415f;
    --navy-soft: #53657b;
    --paper: #fcfbf8;
    --limestone: #f2eee7;
    --warm-white: #faf8f4;
    --white: #ffffff;
    --text-dark: #172437;
    --text-muted: #687381;
    --line: rgba(15, 34, 61, 0.13);
    --line-light: rgba(15, 34, 61, 0.07);
    --gold: #b28a4a;
    --gold-light: #d4b777;
    --shadow-soft: 0 18px 55px rgba(15, 32, 54, 0.08);
    --shadow-medium: 0 24px 65px rgba(15, 32, 54, 0.12);
    --shadow-strong: 0 32px 80px rgba(8, 22, 42, 0.20);
    --navigation-height: 105px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Inter",
        Arial,
        Helvetica,
        sans-serif;
    background: var(--paper);
    color: var(--text-dark);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

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

p {
    margin-top: 0;
}

.section-title,
.about-introduction h3,
.value-card h3,
.project-content h3,
.team-member-information h3,
.contact-area h3 {
    font-family: "Cormorant Garamond", Georgia, serif;
    max-width: 650px;
    margin: 0;
    font-size: clamp(43px, 4.5vw, 68px);
    line-height: 0.98;
    font-weight: 500;
    letter-spacing: -0.035em;
}

.navigation-island {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    height: var(--navigation-height);
    background: linear-gradient(
            180deg,
            rgba(15, 34, 61, 0.76),
            rgba(15, 34, 61, 0.66)
        );
    border-bottom: 1px solid rgba(178, 138, 74, 0.24);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.14);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.logo-link {
    position: absolute;
    top: 50%;
    left: 24px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    width: 235px;
    height: 88px;
    margin: 0;
    overflow: visible;
    transform: translateY(-50%);
}

.logo {
    position: absolute;
    left: 0;
    top: 50%;
    width: 220px;
    height: auto;
    max-height: 86px;
    object-fit: contain;
    object-position: left center;
    transform: translateY(-50%);
    transition: opacity 450ms ease,
        transform 180ms ease;
}

.logo-dark {
    opacity: 1;
}

.logo-light {
    opacity: 0;
}

.navigation-island.logo-on-dark .logo-dark {
    opacity: 0;
}

.navigation-island.logo-on-dark .logo-light {
    opacity: 1;
}

.navigation {
    position: absolute;
    top: 50%;
    left: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 46px;
    transform: translate(-50%, -50%);
}

.navigation a {
    position: relative;
    padding: 10px 2px;
    color: rgba(255, 255, 255, 0.84);
    font-family: "Inter",
        Arial,
        Helvetica,
        sans-serif;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    white-space: nowrap;
    transition: color 180ms ease,
        transform 180ms ease;
}

.navigation a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 1px;
    width: 0;
    height: 1px;
    background: var(--gold-light);
    transform: translateX(-50%);
    transition: width 180ms ease;
}

.navigation a:hover {
    color: var(--white);
    transform: translateY(-1px);
}

.navigation a:hover::after {
    width: 100%;
}

.page-section {
    position: relative;
    min-height: 100vh;
    scroll-margin-top: 0;
}

.section-container {
    position: relative;
    z-index: 2;
    width: min(1320px, calc(100% - 110px));
    margin: 0 auto;
    padding: calc(var(--navigation-height) + 70px)
        0
        130px;
}

.section-number {
    margin: 0 0 18px;
    color: var(--gold);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.section-title {
    font-family: "Cormorant Garamond", Georgia, serif;
    max-width: 980px;
    margin: 0 0 64px;
    color: var(--navy);
    font-size: clamp(62px, 6.7vw, 106px);
    line-height: 0.94;
    font-weight: 500;
    letter-spacing: -0.045em;
}

.light-number {
    color: var(--gold-light);
}

.light-title {
    color: var(--white);
}

.hero {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding: calc(var(--navigation-height) + 70px)
        50px
        80px;
    overflow: hidden;
    background-image: url("images/home-background.png");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(
            90deg,
            rgba(252, 251, 248, 1) 0%,
            rgba(252, 251, 248, 0.99) 25%,
            rgba(252, 251, 248, 0.93) 39%,
            rgba(252, 251, 248, 0.67) 51%,
            rgba(252, 251, 248, 0.22) 65%,
            rgba(252, 251, 248, 0) 79%
        );
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(
            180deg,
            rgba(15, 34, 61, 0.025) 0%,
            rgba(15, 34, 61, 0) 60%,
            rgba(15, 34, 61, 0.09) 100%
        );
}

.hero-content {
    position: relative;
    z-index: 2;
    width: min(900px, 63vw);
    padding-top: 35px;
}

.hero-content h1 {
    margin: 0;
    color: var(--navy);
    font-family: "Fraunces", "Times New Roman", serif;
    font-size: clamp(76px, 7.5vw, 128px);
    line-height: 0.95;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.055em;
    white-space: nowrap;
}

.hero-content h2 {
    margin: 48px 0 0;
    max-width: 680px;
    color: var(--navy-light);
    font-family: "Inter",
        Arial,
        Helvetica,
        sans-serif;
    font-size: clamp(30px, 3.3vw, 54px);
    line-height: 1.22;
    font-weight: 400;
    letter-spacing: -0.02em;
}

.about-section {
    position: relative;
    background-image: linear-gradient(
            90deg,
            rgba(252, 251, 248, 0.99) 0%,
            rgba(250, 248, 244, 0.95) 52%,
            rgba(242, 238, 231, 0.78) 100%
        ),
        url("images/about-background.jpg");
    background-repeat: no-repeat,
        no-repeat;
    background-position: center,
        center;
    background-size: cover,
        cover;
}

.about-layout {
    display: grid;
    grid-template-columns: minmax(320px, 0.88fr) minmax(420px, 1.12fr);
    align-items: start;
    gap: clamp(70px, 8vw, 120px);
    margin-bottom: 96px;
}

.about-introduction {
    max-width: 570px;
}

.about-introduction h3 {
    font-family: "Cormorant Garamond", Georgia, serif;
    margin: 0;
    color: var(--navy);
    font-size: clamp(42px, 4.1vw, 64px);
    line-height: 1.04;
    font-weight: 500;
    letter-spacing: -0.035em;
}

.about-text {
    max-width: 690px;
    padding-top: 0px;
    transform: translateY(-110px);
}

.about-text p {
    margin: 0 0 26px;
    color: var(--text-muted);
    font-size: 18px;
    line-height: 1.78;
    font-weight: 400;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.value-card {
    min-height: 300px;
    padding: 34px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--line-light);
    border-radius: 14px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform 180ms ease,
        box-shadow 180ms ease;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.value-card span {
    color: var(--gold);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.16em;
}

.value-card h3 {
    font-family: "Cormorant Garamond", Georgia, serif;
    max-width: 320px;
    margin: 105px 0 20px;
    color: var(--navy);
    font-size: clamp(31px, 2.6vw, 39px);
    line-height: 1.04;
    font-weight: 500;
    letter-spacing: -0.025em;
}

.value-card p {
    max-width: 340px;
    margin: 0;
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.72;
}

.projects-section {
    position: relative;
    background-image: linear-gradient(
            135deg,
            rgba(13, 30, 53, 0.94),
            rgba(27, 55, 89, 0.87)
        ),
        url("images/projects-background.jpg");
    background-repeat: no-repeat,
        no-repeat;
    background-position: center,
        center;
    background-size: cover,
        cover;
}

.projects-introduction {
    max-width: 690px;
    margin: -28px 0 72px;
    color: rgba(255, 255, 255, 0.76);
    font-size: 18px;
    line-height: 1.72;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.project-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 470px;
    padding: 32px;
    background: rgba(255, 255, 255, 0.965);
    border: 1px solid rgba(255, 255, 255, 0.58);
    border-radius: 14px;
    box-shadow: 0 24px 60px rgba(4, 15, 30, 0.20);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform 200ms ease,
        box-shadow 200ms ease;
}

.project-card:hover {
    transform: translateY(-7px);
    box-shadow: 0 34px 75px rgba(4, 15, 30, 0.27);
}

.tenaz-card {
    position: relative;
    overflow: hidden;
}

.tenaz-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80%;
    background-image: linear-gradient(
            to bottom,
            rgba(255, 255, 255, 0.05) 0%,
            rgba(255, 255, 255, 0.18) 45%,
            rgba(255, 255, 255, 0.78) 82%,
            rgba(255, 255, 255, 1) 100%
        ),
        url("images/tanaz-energy.png");
    background-size: cover;
    background-position: center 38%;
    background-repeat: no-repeat;
    opacity: 0.78;
    pointer-events: none;
    z-index: 0;
}

.tenaz-card > * {
    position: relative;
    z-index: 2;
}

.copper-card {
    position: relative;
    overflow: hidden;
}

.copper-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80%;
    background-image: linear-gradient(
            to bottom,
            rgba(255, 255, 255, 0.05) 0%,
            rgba(255, 255, 255, 0.18) 45%,
            rgba(255, 255, 255, 0.78) 82%,
            rgba(255, 255, 255, 1) 100%
        ),
        url("images/copper.png");
    background-size: cover;
    background-position: center 38%;
    background-repeat: no-repeat;
    opacity: 0.78;
    pointer-events: none;
    z-index: 0;
}

.copper-card > * {
    position: relative;
    z-index: 2;
}

.analytics-card {
    position: relative;
    overflow: hidden;
}

.analytics-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80%;
    background-image: linear-gradient(
            to bottom,
            rgba(255, 255, 255, 0.05) 0%,
            rgba(255, 255, 255, 0.18) 45%,
            rgba(255, 255, 255, 0.78) 82%,
            rgba(255, 255, 255, 1) 100%
        ),
        url("images/analytic.png");
    background-size: cover;
    background-position: center 40%;
    background-repeat: no-repeat;
    opacity: 0.78;
    pointer-events: none;
    z-index: 0;
}

.analytics-card > * {
    position: relative;
    z-index: 2;
}

.project-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.project-category {
    padding: 7px 11px;
    color: var(--navy);
    background: var(--limestone);
    border: 1px solid rgba(15, 34, 61, 0.08);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.11em;
}

.project-index {
    color: var(--gold);
    font-size: 13px;
    font-weight: 600;
}

.project-content h3 {
    max-width: 340px;
    margin-top: 70px;
    margin-bottom: 22px;
    color: var(--navy);
    font-size: clamp(37px, 3vw, 46px);
    line-height: 0.98;
    font-weight: 500;
    letter-spacing: -0.035em;
}

.project-content p {
    max-width: 350px;
    margin: 0 0 36px;
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.72;
}

.project-content a {
    color: var(--navy);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.project-content a::after {
    content: " →";
    color: var(--gold);
}

.team-section {
    position: relative;
    background-image: linear-gradient(
            90deg,
            rgba(252, 251, 248, 0.98),
            rgba(247, 244, 238, 0.90)
        ),
        url("images/team-background.jpg");
    background-repeat: no-repeat,
        no-repeat;
    background-position: center,
        center;
    background-size: cover,
        cover;
}

.team-introduction {
    max-width: 690px;
    margin: -27px 0 72px;
    color: var(--text-muted);
    font-size: 18px;
    line-height: 1.72;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.team-member {
    overflow: hidden;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--line-light);
    border-radius: 14px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px);
    transition: transform 180ms ease,
        box-shadow 180ms ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.team-photo-placeholder {
    width: 100%;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background: #ececec;
}

.team-photo-placeholder img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center top;
}

.team-photo-placeholder img.team-photo-grigorii {
    object-position: center 20%;
}

.team-member-information {
    padding: 32px 32px 36px;
}

.team-member-information h3 {
    font-family: "Cormorant Garamond", Georgia, serif;
    max-width: 330px;
    margin: 0 0 11px;
    color: var(--navy);
    font-size: clamp(31px, 2.7vw, 38px);
    line-height: 1.02;
    font-weight: 500;
    letter-spacing: -0.025em;
}

.team-position {
    margin: 0 0 23px !important;
    color: var(--gold) !important;
    font-family: "Inter", Arial, Helvetica, sans-serif;
    font-size: 12px;
    line-height: 1.4;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.team-member-information p {
    margin: 0;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
}

.contact-area {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    align-items: center;
    gap: clamp(50px, 7vw, 100px);
    margin-top: 100px;
    padding: clamp(50px, 5vw, 72px);
    color: var(--white);
    background: linear-gradient(135deg, rgba(15, 34, 61, 0.985), rgba(30, 57, 91, 0.97));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    box-shadow: 0 30px 70px rgba(10, 25, 47, 0.22);
}

.contact-label {
    margin: 0 0 20px;
    color: var(--gold-light);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.18em;
}

.contact-area h3 {
    margin: 0;
    font-size: clamp(44px, 4.5vw, 70px);
    line-height: 0.96;
    letter-spacing: -0.025em;
}

.contact-details {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 15px;
    padding-top: 8px;
}

.contact-details a {
    color: var(--white);
    font-size: 19px;
    font-weight: 500;
}

.contact-details a:hover {
    color: var(--gold-light);
}

.contact-details p {
    margin: 14px 0 0;
    color: rgba(255, 255, 255, 0.67);
    font-size: 15px;
}

footer {
    padding: 34px 50px;
    color: var(--text-muted);
    background: var(--limestone);
    border-top: 1px solid var(--line-light);
    text-align: center;
    font-size: 13px;
}

footer p {
    margin: 0;
}

.footer-disclaimer {
    max-width: 850px;
    margin: 16px auto 0;
    color: rgba(104, 115, 129, 0.90);
    font-size: 12px;
    line-height: 1.6;
}

.judgment-card,
.research-card,
.meeting-card {
    position: relative;
    overflow: hidden;
}

.judgment-card::before,
.research-card::before,
.meeting-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80%;
    background-size: cover;
    background-repeat: no-repeat;
    opacity: 0.22;
    pointer-events: none;
    z-index: 0;
}

.judgment-card::before {
    background-image: linear-gradient(
            to bottom,
            rgba(255,255,255,0.05) 0%,
            rgba(255,255,255,0.18) 45%,
            rgba(255,255,255,0.78) 82%,
            rgba(255,255,255,1) 100%
        ),
        url("images/judgment.png");
    background-position: center 42%;
}

.research-card::before {
    background-image: linear-gradient(
            to bottom,
            rgba(255,255,255,0.05) 0%,
            rgba(255,255,255,0.18) 45%,
            rgba(255,255,255,0.78) 82%,
            rgba(255,255,255,1) 100%
        ),
        url("images/research.png");
    background-position: center 42%;
}

.meeting-card::before {
    background-image: linear-gradient(
            to bottom,
            rgba(255,255,255,0.05) 0%,
            rgba(255,255,255,0.18) 45%,
            rgba(255,255,255,0.78) 82%,
            rgba(255,255,255,1) 100%
        ),
        url("images/meeting.png");
    background-position: center 42%;
}

.judgment-card > *,
.research-card > *,
.meeting-card > * {
    position: relative;
    z-index: 2;
}

.mobile-menu-button {
    display: none;
}

@media (max-width: 1050px) {

:root {
    --navigation-height: 82px;
}

.logo-link {
    left: 16px;
    width: 175px;
    height: 76px;
}

.logo {
    width: 168px;
    max-height: 74px;
}

.navigation {
    gap: 28px;
}

.navigation a {
    font-size: 11px;
}

.hero {
    padding: calc(var(--navigation-height) + 70px)
            35px
            70px;
    background-position: 58% center;
}

.hero::before {
    background: linear-gradient(
                90deg,
                rgba(252, 251, 248, 1) 0%,
                rgba(252, 251, 248, 0.98) 35%,
                rgba(252, 251, 248, 0.70) 55%,
                rgba(252, 251, 248, 0.10) 78%
            );
}

.hero-content {
    width: 78vw;
}

.hero-content h1 {
    font-size: clamp(62px, 8.8vw, 104px);
    letter-spacing: 0.045em;
}

.section-container {
    width: min(100% - 60px, 1320px);
    padding: calc(var(--navigation-height) + 62px)
            0
            110px;
}

.about-layout {
    grid-template-columns: 1fr;
    gap: 52px;
}

.about-values {
    grid-template-columns: 1fr;
}

.projects-grid,
    .team-grid {
    grid-template-columns: 1fr 1fr;
}
}

@media (max-width: 700px) {

.logo-dark {
    width: 220px;
}

.logo-light {
    width: 183px;
    top: calc(50% + 4px);
}

.projects-grid,
    .team-grid {
    grid-template-columns: 1fr;
}

.section-title {
    margin-bottom: 46px;
}

.about-text {
    padding-top: 0;
}
}

.contact-location {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin: 14px 0 0;
    color: rgba(255, 255, 255, 0.67);
    font-size: 15px;
}

.location-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.location-item img {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.location-separator {
    color: rgba(255, 255, 255, 0.45);
}

.logo-dark {
    width: 220px;
    max-width: none;
    max-height: none;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}

.logo-light {
    width: 240px;
    max-width: none;
    max-height: none;
    left: -15px;
    top: 50%;
    transform: translateY(-58%);
}

@media (max-width: 700px) {

.section-container {
    width: calc(100% - 40px);
    padding: 118px 0 92px;
}

.section-title {
    max-width: 100%;
    margin: 0 0 48px;
    font-size: clamp(55px, 15vw, 78px);
    line-height: 0.96;
}

.about-layout {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    gap: 0;
    width: 100%;
    margin-bottom: 64px;
}

.about-introduction {
    width: 100%;
    max-width: 100%;
    margin: 0 0 40px;
}

.about-introduction h3 {
    width: 100%;
    max-width: 100%;
    margin: 0;
    font-size: clamp(39px, 10.7vw, 49px);
    line-height: 1.04;
    letter-spacing: -0.025em;
    overflow-wrap: normal;
    word-break: normal;
}

.about-text {
    position: static;
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
    transform: none;
}

.about-text p {
    width: 100%;
    margin: 0 0 27px;
    font-size: 16px;
    line-height: 1.72;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-values,
    .projects-grid,
    .team-grid {
    grid-template-columns: 1fr;
}

.value-card h3 {
    margin-top: 55px;
    font-size: 34px;
}

.project-card {
    min-height: 400px;
}

.project-content h3 {
    font-size: 39px;
}

.team-member-information h3 {
    font-size: 34px;
}

.contact-area {
    grid-template-columns: 1fr;
    gap: 36px;
    margin-top: 70px;
    padding: 38px 28px;
}

.contact-area h3 {
    font-size: clamp(39px, 11vw, 53px);
}

.contact-details {
    padding-top: 0;
}

.contact-details a {
    font-size: 17px;
    overflow-wrap: anywhere;
}

.contact-location {
    gap: 9px;
}

footer {
    padding: 28px 22px;
}

.footer-disclaimer {
    font-size: 11px;
}
}

@media (max-width: 700px) {

:root {
    --navigation-height: 76px;
}

body {
    overflow-x: hidden;
}

.navigation-island {
    height: var(--navigation-height);
    overflow: visible;
}

.logo-link {
    top: 50%;
    left: 14px;
    width: 142px;
    height: 68px;
    overflow: hidden;
    transform: translateY(-50%);
}

.logo,
    .logo-dark,
    .logo-light {
    top: 50%;
    width: 142px;
    height: 66px;
    max-width: 142px;
    max-height: 66px;
    object-fit: contain;
    object-position: left center;
}

.logo-dark {
    left: 0;
    transform: translateY(-50%);
}

.logo-light {
    left: -3px;
    transform: translateY(-53%);
}

.mobile-menu-button {
    position: absolute;
    top: 50%;
    right: 14px;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 48px;
    height: 48px;
    padding: 0;
    color: var(--white);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    cursor: pointer;
    transform: translateY(-50%);
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu-button span {
    display: block;
    width: 21px;
    height: 2px;
    background: currentColor;
    border-radius: 999px;
    transition: transform 180ms ease,
            opacity 180ms ease;
}

.navigation-island.menu-open .mobile-menu-button span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navigation-island.menu-open .mobile-menu-button span:nth-child(2) {
    opacity: 0;
}

.navigation-island.menu-open .mobile-menu-button span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.navigation {
    position: absolute;
    top: calc(100% + 10px);
    right: 12px;
    left: 12px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    padding: 10px;
    background: rgba(15, 34, 61, 0.985);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    box-shadow: 0 22px 55px rgba(0, 0, 0, 0.28);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease,
            visibility 180ms ease,
            transform 180ms ease;
}

.navigation-island.menu-open .navigation {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.navigation a {
    display: flex;
    align-items: center;
    min-height: 50px;
    padding: 0 16px;
    color: rgba(255, 255, 255, 0.92);
    border-radius: 9px;
    font-size: 13px;
    line-height: 1;
    letter-spacing: 0.08em;
}

.navigation a::after {
    display: none;
}

.navigation a:active {
    background: rgba(255, 255, 255, 0.09);
}

.hero::before {
    background: linear-gradient(
                180deg,
                rgba(252, 251, 248, 0.99) 0%,
                rgba(252, 251, 248, 0.97) 31%,
                rgba(252, 251, 248, 0.82) 48%,
                rgba(252, 251, 248, 0.30) 66%,
                rgba(252, 251, 248, 0.03) 84%,
                rgba(252, 251, 248, 0) 100%
            );
}

.hero::after {
    background: linear-gradient(
                180deg,
                rgba(15, 34, 61, 0) 55%,
                rgba(15, 34, 61, 0.10) 78%,
                rgba(15, 34, 61, 0.24) 100%
            );
}

.hero-content h1 {
    max-width: 100%;
    font-size: clamp(40px, 11.2vw, 54px);
    line-height: 0.98;
    letter-spacing: 0.035em;
    white-space: nowrap;
}

.hero-content h2 {
    max-width: 420px;
    margin-top: 34px;
    font-size: clamp(26px, 7.2vw, 34px);
    line-height: 1.23;
    letter-spacing: -0.025em;
}

.section-container {
    padding-top: calc(var(--navigation-height) + 42px);
}
}

@media (max-width: 700px) {

.hero {
    width: 100%;
    height: auto;
    display: flex;
    align-items: flex-start;
    overflow: hidden;
}

.hero-content {
    width: 100%;
    padding-top: 0;
}

.hero-content h1 {
    margin: 0;
}
}

@media (max-width: 700px) {

.hero {
    min-height: calc(100lvh + 60px);
    padding: calc(var(--navigation-height) + 44px)
            24px
            48px;
    background-image: url("images/mobile.png");
    background-repeat: no-repeat;
    background-position: center bottom;
    background-size: cover;
}

.navigation-island {
    background: linear-gradient(
                180deg,
                rgba(15, 34, 61, 0.76),
                rgba(15, 34, 61, 0.66)
            );
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px);
}
}

@media (max-width: 700px) {

.logo-dark {
    display: none !important;
    opacity: 0 !important;
}

.logo-light {
    display: block !important;
    opacity: 1 !important;
}

.navigation-island.logo-on-dark .logo-dark {
    display: none !important;
    opacity: 0 !important;
}

.navigation-island.logo-on-dark .logo-light {
    display: block !important;
    opacity: 1 !important;
}
}