:root {
    --color-primary: #123d2d;
    --color-primary-dark: #082719;
    --color-secondary: #f2b705;
    --color-accent: #1c8f5f;
    --color-blue: #26707c;
    --color-background: #f7f5ec;
    --color-surface: #ffffff;
    --color-text: #12211a;
    --color-muted: #64736b;
    --color-white: #ffffff;
    --gradient-primary: radial-gradient(circle at 15% 20%, rgba(242, 183, 5, 0.45), transparent 28%), linear-gradient(135deg, #123d2d 0%, #1d6b4c 55%, #f2b705 140%);
    --gradient-accent: linear-gradient(135deg, #f2b705 0%, #ef7d21 100%);
    --shadow-card: 0 22px 60px rgba(18, 33, 26, 0.14);
    --radius-card: 28px;
    --radius-control: 999px;
    --max-content: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background: radial-gradient(circle at 80% 10%, rgba(242, 183, 5, 0.22), transparent 28%), radial-gradient(circle at 8% 55%, rgba(28, 143, 95, 0.18), transparent 26%);
}

a {
    color: inherit;
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(calc(100% - 24px), 1320px);
    margin: 16px auto 0;
    padding: 14px 18px;
    border: 1px solid rgba(18, 61, 45, 0.12);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.84);
    box-shadow: 0 16px 40px rgba(18, 33, 26, 0.08);
    backdrop-filter: blur(18px);
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 800;
    letter-spacing: -0.04em;
    text-decoration: none;
    font-size: 1.2rem;
}

.site-brand__mark {
    color: var(--color-accent);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.84rem;
    font-weight: 700;
}

.site-nav a {
    padding: 8px 10px;
    border-radius: 999px;
    color: var(--color-muted);
    text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus {
    background: rgba(28, 143, 95, 0.1);
    color: var(--color-primary);
}

.site-lang {
    min-width: 86px;
    padding: 8px 12px;
    border: 1px solid rgba(18, 61, 45, 0.18);
    border-radius: var(--radius-control);
    background: var(--color-white);
    color: var(--color-primary);
    font-weight: 800;
}

.site-menu-button {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
}

.site-menu-button span:not(.sr-only) {
    display: block;
    width: 18px;
    height: 2px;
    margin: 4px auto;
    background: var(--color-white);
}

.hero,
.section {
    width: min(calc(100% - 32px), var(--max-content));
    margin: 0 auto;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.78fr);
    gap: 36px;
    align-items: center;
    min-height: calc(100vh - 96px);
    padding: 72px 0 48px;
}

.hero__content {
    padding: clamp(28px, 5vw, 58px);
    border-radius: 36px;
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-card);
}

.hero__content,
.hero__visual,
.contact-card {
    position: relative;
}

.hero__content::after,
.contact-card::after {
    content: "";
    position: absolute;
    inset: 18px;
    pointer-events: none;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 26px;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.hero .eyebrow {
    color: #ffe48a;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 12ch;
    margin-bottom: 24px;
    font-size: clamp(3rem, 8vw, 6.8rem);
    line-height: 0.9;
    letter-spacing: -0.08em;
}

h2 {
    margin-bottom: 18px;
    font-size: clamp(2.1rem, 4vw, 4.4rem);
    line-height: 0.95;
    letter-spacing: -0.06em;
}

h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
    line-height: 1.15;
}

.hero__lead {
    max-width: 680px;
    color: rgba(255, 255, 255, 0.84);
    font-size: clamp(1.06rem, 2vw, 1.35rem);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 28px;
}

.hero__stats article {
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.1);
}

.hero__stats strong {
    display: block;
    color: #ffe48a;
    font-size: clamp(1.3rem, 2.5vw, 2rem);
    line-height: 1;
}

.hero__stats span {
    display: block;
    margin-top: 7px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.82rem;
    font-weight: 800;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 13px 22px;
    border-radius: var(--radius-control);
    font-weight: 900;
    text-decoration: none;
}

.button--primary {
    background: var(--gradient-accent);
    color: #241900;
    box-shadow: 0 14px 30px rgba(242, 183, 5, 0.24);
}

.button--secondary {
    border: 1px solid rgba(255, 255, 255, 0.34);
    color: var(--color-white);
}

.hero__visual {
    position: relative;
    min-height: 560px;
    border-radius: 36px;
    overflow: hidden;
    background: linear-gradient(160deg, #ffffff 0%, #eaf4dc 50%, #f8d75e 130%);
    box-shadow: var(--shadow-card);
}

.solar-orb {
    position: absolute;
    width: 340px;
    height: 340px;
    inset: 52px 0 auto 50%;
    transform: translateX(-50%);
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #fff7c2, #f2b705 54%, #ef7d21 100%);
    box-shadow: 0 0 80px rgba(242, 183, 5, 0.42);
}

.hero-card {
    position: absolute;
    right: 32px;
    left: 32px;
    padding: 18px 20px;
    border: 1px solid rgba(18, 61, 45, 0.12);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--color-primary);
    font-weight: 900;
    backdrop-filter: blur(14px);
}

.hero-card--top {
    top: 330px;
}

.hero-card--bottom {
    bottom: 34px;
}

.section {
    padding: 72px 0;
    scroll-margin-top: 110px;
}

.section--accent {
    position: relative;
    width: min(calc(100% - 32px), 1240px);
    padding: 72px clamp(18px, 3vw, 38px);
    border-radius: 42px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.56), rgba(232, 246, 220, 0.86));
    box-shadow: inset 0 0 0 1px rgba(18, 61, 45, 0.08);
}

.section__heading {
    max-width: 780px;
    margin-bottom: 34px;
}

.section__heading p:not(.eyebrow) {
    color: var(--color-muted);
    font-size: clamp(1.08rem, 1.5vw, 1.26rem);
    font-weight: 650;
}

.section__heading--split {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.55fr);
    gap: 36px;
    max-width: none;
    align-items: end;
}

.section__heading--center {
    margin-right: auto;
    margin-left: auto;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.feature-card,
.contact-card,
.video-panel,
.partners-strip,
.text-panel,
.metric-grid article,
.spec-list,
.highlight-strip article,
.patent-panel article {
    border: 1px solid rgba(18, 61, 45, 0.1);
    border-radius: var(--radius-card);
    background: rgba(255, 255, 255, 0.78);
    box-shadow: var(--shadow-card);
}

.feature-card {
    position: relative;
    padding: 28px;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 5px;
    background: var(--gradient-accent);
}

.feature-grid--wide {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card span {
    display: inline-flex;
    margin-bottom: 28px;
    color: var(--color-accent);
    font-weight: 900;
}

.feature-card--dark {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: var(--color-white);
}

.feature-card--dark span,
.feature-card--dark li {
    color: rgba(255, 255, 255, 0.86);
}

.feature-card p {
    color: var(--color-muted);
}

.feature-card ul,
.spec-list ul {
    margin: 0;
    padding-left: 20px;
    color: var(--color-muted);
}

[dir="rtl"] .feature-card ul,
[dir="rtl"] .spec-list ul {
    padding-right: 20px;
    padding-left: 0;
}

.feature-card li,
.spec-list li {
    margin-bottom: 10px;
}

.text-panel,
.spec-list {
    padding: clamp(24px, 4vw, 38px);
    color: var(--color-muted);
}

.text-panel--feature {
    border-color: rgba(242, 183, 5, 0.36);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(255, 246, 199, 0.72));
}

.text-panel strong,
.spec-list strong {
    color: var(--color-primary);
}

.text-panel--compact,
.spec-list {
    margin-top: 18px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 22px;
}

.metric-grid--three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric-grid article {
    padding: 24px;
}

.metric-card {
    overflow: hidden;
}

.metric-card::before,
.metric-grid article::before {
    content: "";
    display: block;
    width: 42px;
    height: 6px;
    margin-bottom: 18px;
    border-radius: 999px;
    background: var(--color-accent);
}

.metric-card--green::before {
    background: var(--color-accent);
}

.metric-card--solar::before {
    background: var(--color-secondary);
}

.metric-card--blue::before {
    background: var(--color-blue);
}

.metric-grid strong {
    display: block;
    margin-bottom: 10px;
    color: var(--color-primary);
    font-size: 1.22rem;
    line-height: 1.1;
}

.metric-grid span {
    color: var(--color-muted);
}

.video-panel {
    padding: 16px;
}

.demo-video {
    margin-bottom: 18px;
}

.video-panel__screen {
    display: grid;
    place-items: center;
    min-height: 460px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(18, 61, 45, 0.95), rgba(28, 143, 95, 0.9)), repeating-linear-gradient(90deg, transparent 0 38px, rgba(255, 255, 255, 0.08) 38px 40px);
    color: var(--color-white);
    text-align: center;
}

.highlight-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.highlight-strip article {
    padding: 22px;
    background: linear-gradient(135deg, rgba(18, 61, 45, 0.96), rgba(28, 143, 95, 0.94));
    color: var(--color-white);
}

.highlight-strip strong {
    display: block;
    color: #ffe48a;
    font-size: clamp(1.35rem, 2.4vw, 2.1rem);
    line-height: 1;
}

.highlight-strip span {
    display: block;
    margin-top: 8px;
    color: rgba(255, 255, 255, 0.78);
    font-weight: 800;
}

.patent-panel {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 18px;
}

.patent-panel article {
    padding: 28px;
    background: linear-gradient(135deg, #fff6c7, #ffffff);
}

.patent-panel span {
    display: inline-flex;
    margin-bottom: 12px;
    color: var(--color-accent);
    font-weight: 950;
    letter-spacing: 0.08em;
}

.patent-panel strong {
    display: block;
    color: var(--color-primary);
    font-size: clamp(1.2rem, 2vw, 1.8rem);
    line-height: 1.1;
    text-transform: uppercase;
}

.play-mark {
    width: 78px;
    height: 78px;
    margin-bottom: 18px;
    border-radius: 50%;
    background: var(--gradient-accent);
    clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.prototype-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr;
    gap: 16px;
}

.prototype-grid img {
    width: 100%;
    height: 280px;
    border-radius: 26px;
    object-fit: cover;
    box-shadow: var(--shadow-card);
}

.prototype-grid img:first-child {
    grid-row: span 2;
    height: 576px;
}

.partners-strip {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 14px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.56);
}

.partner-link {
    display: grid;
    place-items: center;
    min-height: 112px;
    padding: 18px;
    border-radius: 18px;
    background: var(--color-white);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.partner-link:hover,
.partner-link:focus {
    transform: translateY(-3px);
    box-shadow: 0 16px 34px rgba(18, 33, 26, 0.12);
}

.partner-link--dark {
    background: var(--color-primary-dark);
}

.partners-strip img {
    width: 100%;
    max-height: 78px;
    object-fit: contain;
    filter: saturate(0.9);
}

.contact-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 26px;
    padding: clamp(28px, 6vw, 56px);
    background: var(--gradient-primary);
    color: var(--color-white);
}

.contact-card .eyebrow {
    color: #ffe48a;
}

.contact-card p:not(.eyebrow) {
    max-width: 620px;
    color: rgba(255, 255, 255, 0.78);
}

.site-footer {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    gap: 16px;
    width: min(calc(100% - 32px), var(--max-content));
    margin: 0 auto;
    padding: 34px 0 52px;
    color: var(--color-muted);
}

.support-block {
    display: grid;
    gap: 16px;
    padding: 26px;
    border: 1px solid rgba(18, 61, 45, 0.1);
    border-radius: var(--radius-card);
    background: rgba(255, 255, 255, 0.7);
    box-shadow: var(--shadow-card);
    text-align: center;
}

.support-block p {
    margin: 0;
    color: var(--color-primary);
    font-size: 0.82rem;
    font-weight: 950;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.support-logos {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 260px));
    justify-content: center;
    gap: 14px;
}

.support-link {
    display: grid;
    place-items: center;
    min-height: 120px;
    padding: 18px;
    border-radius: 18px;
    background: var(--color-white);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.support-link:hover,
.support-link:focus {
    transform: translateY(-3px);
    box-shadow: 0 16px 34px rgba(18, 33, 26, 0.12);
}

.support-link--dark {
    background: var(--color-primary-dark);
}

.support-link img {
    max-width: 100%;
    max-height: 84px;
    object-fit: contain;
}

.site-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 16px;
}

.site-footer a {
    color: var(--color-primary);
    font-weight: 900;
    text-decoration: none;
}

.support-link--dark,
.support-link--dark:hover,
.support-link--dark:focus {
    color: var(--color-white);
}

[dir="rtl"] .site-brand,
[dir="rtl"] .site-nav,
[dir="rtl"] .hero__actions,
[dir="rtl"] .site-footer {
    direction: rtl;
}

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

@media screen and (max-width: 1024px) {
    .hero,
    .section__heading--split {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
    }

    .hero__visual {
        min-height: 430px;
    }

    .solar-orb {
        width: 260px;
        height: 260px;
        top: 34px;
    }

    .hero-card--top {
        top: 255px;
    }

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

    .feature-grid--wide,
    .metric-grid,
    .metric-grid--three,
    .highlight-strip,
    .patent-panel {
        grid-template-columns: 1fr;
    }

    .prototype-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .prototype-grid img:first-child {
        grid-row: auto;
        grid-column: span 2;
        height: 360px;
    }

    .partners-strip {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media screen and (max-width: 768px) {
    .site-header {
        align-items: flex-start;
        border-radius: 24px;
    }

    .site-menu-button {
        display: block;
        flex: 0 0 auto;
    }

    .site-nav {
        position: absolute;
        top: calc(100% + 8px);
        right: 0;
        left: 0;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 18px;
        border-radius: 24px;
        background: rgba(255, 255, 255, 0.96);
        box-shadow: var(--shadow-card);
    }

    .site-nav.is-open {
        display: flex;
    }

    .site-lang {
        width: 100%;
    }

    h1 {
        max-width: none;
    }

    .hero__content {
        border-radius: 28px;
    }

    .button,
    .hero__actions,
    .hero__stats {
        width: 100%;
    }

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

    .video-panel__screen {
        min-height: 280px;
    }

    .prototype-grid,
    .partners-strip,
    .contact-card {
        grid-template-columns: 1fr;
    }

    .prototype-grid img,
    .prototype-grid img:first-child {
        grid-column: auto;
        height: 260px;
    }

    .contact-card {
        align-items: stretch;
    }

    .support-logos {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 480px) {
    .hero,
    .section {
        width: min(calc(100% - 22px), var(--max-content));
    }

    .hero {
        padding-top: 44px;
    }

    .section {
        padding: 48px 0;
    }

    .hero__visual {
        min-height: 360px;
    }

    .solar-orb {
        width: 210px;
        height: 210px;
    }

    .hero-card {
        right: 18px;
        left: 18px;
    }

    .hero-card--top {
        top: 220px;
    }
}