:root {
    --bg-main: #081425;
    --bg-soft: #0d1b31;
    --surface: rgba(11, 24, 44, 0.88);
    --surface-alt: rgba(15, 32, 56, 0.76);
    --surface-soft: rgba(255, 255, 255, 0.03);
    --text-main: #e8eef8;
    --text-soft: #9fb0c8;
    --line: rgba(151, 168, 195, 0.18);
    --accent: #39bdf8;
    --accent-strong: #1fb6ff;
    --accent-soft: rgba(57, 189, 248, 0.12);
    --success: #22c55e;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.34);
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 14px;
    --max-width: 1180px;
    --transition: 180ms ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-main);
    background:
            radial-gradient(circle at top left, rgba(57, 189, 248, 0.16), transparent 28%),
            radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.12), transparent 26%),
            linear-gradient(135deg, #071224, #0a1930 55%, #091120);
    line-height: 1.65;
}

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

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

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(16px);
    background: rgba(5, 12, 24, 0.58);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.header-inner {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.brand {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-main);
    white-space: nowrap;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    flex: 1;
    justify-content: center;
}

.main-nav a {
    color: var(--text-soft);
    font-size: 0.96rem;
    transition: color var(--transition);
}

.main-nav a:hover {
    color: var(--text-main);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-switch {
    display: inline-flex;
    padding: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--line);
}

.lang-button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--text-soft);
    padding: 8px 12px;
    border-radius: 999px;
    font: inherit;
    font-size: 0.88rem;
    cursor: pointer;
}

.lang-button.active {
    background: rgba(57, 189, 248, 0.15);
    color: var(--accent);
}

.icon-link {
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--text-soft);
    transition: all var(--transition);
}

.icon-link:hover {
    color: var(--text-main);
    border-color: rgba(57, 189, 248, 0.4);
}

.hero-section {
    padding: 52px 0 26px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.9fr);
    gap: 26px;
    align-items: stretch;
}

.hero-copy,
.focus-card,
.info-card,
.project-card,
.note-card,
.mini-panel,
.contact-box {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.hero-copy {
    padding: 42px 42px 36px;
}

.hero-copy h1 {
    margin: 16px 0 12px;
    font-size: clamp(2.2rem, 2.7vw, 42px);
    /*font-size: 42px !important;*/
    line-height: 1.05;
    letter-spacing: -0.035em;
}

.hero-photo-wrap {
    margin: 0 0 20px;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.04);
    max-width: 420px;
}

.hero-photo {
    display: block;
    width: 100%;
    height: auto;
}

.eyebrow,
.section-kicker,
.tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-soft);
    color: var(--accent);
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.hero-title {
    margin: 0 0 16px;
    font-size: 1.25rem;
    line-height: 1.45;
    color: var(--text-main);
    /*max-width: 18ch;*/
}

.hero-description {
    margin: 0;
    color: var(--text-soft);
    font-size: 1.08rem;
    max-width: 62ch;
}

.hero-actions,
.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 18px;
    border-radius: var(--radius-md);
    font-weight: 700;
    transition: transform var(--transition), opacity var(--transition), border-color var(--transition), background var(--transition);
}

.button:hover {
    transform: translateY(-1px);
    opacity: 0.98;
}

.button-primary {
    background: var(--accent-strong);
    color: #04253a;
}

.button-secondary {
    border: 1px solid var(--line);
    color: var(--text-main);
    background: transparent;
}

.focus-card {
    padding: 30px 28px;
}

.focus-card h2 {
    margin: 0 0 14px;
    font-size: 1.15rem;
}

.focus-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.focus-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 10px;
    color: var(--text-soft);
}

.focus-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
}

.focus-divider {
    height: 1px;
    background: var(--line);
    margin: 18px 0;
}

.focus-note {
    margin: 0;
    color: var(--text-soft);
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    padding: 10px 0 18px;
}

.info-card {
    padding: 24px;
}

.info-card h2 {
    margin: 0 0 10px;
    font-size: 1.08rem;
}

.info-card p {
    margin: 0;
    color: var(--text-soft);
}

.section-block {
    padding: 34px 0;
}

.alt-surface {
    position: relative;
}

.section-heading {
    margin-bottom: 24px;
}

.section-heading.left-aligned {
    margin-bottom: 18px;
}

.section-heading h2 {
    margin: 12px 0 10px;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
}

.section-heading p {
    margin: 0;
    color: var(--text-soft);
    max-width: 68ch;
}

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

.project-card {
    padding: 24px;
    transition: transform var(--transition), border-color var(--transition);
}

.project-card:hover,
.note-card:hover,
.mini-panel:hover,
.info-card:hover {
    transform: translateY(-2px);
    border-color: rgba(57, 189, 248, 0.28);
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.tag {
    padding: 6px 10px;
    font-size: 0.8rem;
}

.project-card h3,
.note-card h3,
.mini-panel h3 {
    margin: 0 0 10px;
    font-size: 1.12rem;
}

.project-card p,
.note-card p {
    margin: 0 0 16px;
    color: var(--text-soft);
}

.text-link {
    color: var(--accent);
    font-weight: 700;
}

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

.note-card {
    padding: 22px;
    background: var(--surface-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: 22px;
    align-items: start;
}

.about-copy {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    padding: 30px;
    box-shadow: var(--shadow);
}

.about-copy p {
    margin: 0 0 16px;
    color: var(--text-soft);
}

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

.about-panels {
    display: grid;
    gap: 18px;
}

.mini-panel {
    padding: 22px;
}

.mini-panel ul {
    margin: 0;
    padding-left: 18px;
    color: var(--text-soft);
}

.mini-panel li + li {
    margin-top: 8px;
}

.contact-box {
    padding: 30px;
    display: flex;
    gap: 24px;
    justify-content: space-between;
    align-items: center;
}

.contact-box h2 {
    margin: 12px 0 10px;
    font-size: 2rem;
    letter-spacing: -0.03em;
}

.contact-box p {
    margin: 0;
    color: var(--text-soft);
    max-width: 58ch;
}

.site-footer {
    padding: 12px 0 36px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 18px;
    color: var(--text-soft);
    font-size: 0.95rem;
}

@media (max-width: 1040px) {
    .main-nav {
        gap: 16px;
    }

    .hero-grid,
    .about-grid,
    .project-grid,
    .notes-grid,
    .quick-grid {
        grid-template-columns: 1fr;
    }

    .contact-box {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 780px) {
    .header-inner {
        flex-wrap: wrap;
        justify-content: center;
        padding: 14px 0;
    }

    .main-nav {
        order: 3;
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-copy {
        padding: 28px 24px;
    }

    .focus-card,
    .info-card,
    .project-card,
    .note-card,
    .mini-panel,
    .about-copy,
    .contact-box {
        border-radius: 22px;
    }

    .footer-inner {
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .container {
        width: min(var(--max-width), calc(100% - 24px));
    }

    .hero-copy h1 {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 1.1rem;
    }

    .button,
    .icon-link {
        width: 100%;
    }

    .header-actions {
        width: 100%;
        flex-direction: column;
    }

    .lang-switch {
        width: 100%;
        justify-content: center;
    }
}