:root {
    color-scheme: dark;
    --bg: #07111f;
    --bg-soft: #0b1728;
    --surface: rgba(15, 28, 46, .78);
    --surface-strong: #0f1d30;
    --surface-alt: #10233a;
    --text: #eef6ff;
    --text-soft: #a6b5c8;
    --text-faint: #74869b;
    --line: rgba(148, 180, 214, .14);
    --line-strong: rgba(77, 167, 255, .28);
    --accent: #2d8cff;
    --accent-2: #53d7ff;
    --accent-soft: rgba(45, 140, 255, .12);
    --success: #50d7a4;
    --shadow: 0 24px 80px rgba(0, 0, 0, .34);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: 1180px;
    --header-h: 76px;
    --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-fa: Tahoma, "Segoe UI", sans-serif;
}

html[data-theme="light"] {
    color-scheme: light;
    --bg: #f6f9fd;
    --bg-soft: #eef4fa;
    --surface: rgba(255, 255, 255, .86);
    --surface-strong: #ffffff;
    --surface-alt: #edf5ff;
    --text: #102033;
    --text-soft: #4d6075;
    --text-faint: #748397;
    --line: rgba(39, 68, 98, .12);
    --line-strong: rgba(25, 115, 220, .24);
    --accent: #146fe1;
    --accent-2: #0ca5d8;
    --accent-soft: rgba(20, 111, 225, .08);
    --success: #158a63;
    --shadow: 0 24px 60px rgba(29, 60, 95, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 24px); }
body {
    margin: 0;
    min-width: 320px;
    background:
        radial-gradient(circle at 12% 6%, rgba(35, 126, 255, .10), transparent 28rem),
        radial-gradient(circle at 84% 4%, rgba(64, 217, 255, .08), transparent 24rem),
        var(--bg);
    color: var(--text);
    font-family: var(--font);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

html[dir="rtl"] body { font-family: var(--font-fa); }
html[dir="rtl"] .architecture-card,
html[dir="rtl"] code,
html[dir="rtl"] .tag,
html[dir="rtl"] .section-kicker,
html[dir="rtl"] .brand-copy small,
html[dir="rtl"] .project-topline,
html[dir="rtl"] .eyebrow { font-family: var(--font); direction: ltr; }

button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
img { display: block; max-width: 100%; }

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

.narrow-container { max-width: 930px; }
.section-pad { padding: 104px 0; }
.section-divider { border-top: 1px solid var(--line); }
.muted-section {
    background: linear-gradient(180deg, transparent, rgba(45, 140, 255, .035) 20%, rgba(45, 140, 255, .035) 80%, transparent);
}

.skip-link {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 1000;
    transform: translateY(-150%);
    padding: 10px 14px;
    border-radius: 10px;
    background: var(--surface-strong);
    border: 1px solid var(--line-strong);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-h);
    border-bottom: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg) 84%, transparent);
    backdrop-filter: blur(18px);
}
.nav-shell {
    height: 100%;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 28px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    flex: 0 0 auto;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    font-size: 13px;
    font-weight: 850;
    letter-spacing: .06em;
    box-shadow: 0 10px 28px rgba(45, 140, 255, .22);
    overflow: hidden;
}
.brand-mark img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}
.brand-copy { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.brand-copy strong { font-size: 14px; white-space: nowrap; }
.brand-copy small { color: var(--text-faint); font-size: 11px; white-space: nowrap; }

.primary-nav { justify-self: center; display: flex; align-items: center; gap: 28px; }
.primary-nav a {
    color: var(--text-soft);
    font-size: 13px;
    font-weight: 650;
    transition: color .2s ease;
}
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--text); }

.header-actions { display: flex; align-items: center; gap: 8px; }
.icon-button, .language-button, .mobile-nav-toggle {
    border: 1px solid var(--line);
    background: var(--surface);
    cursor: pointer;
}
.icon-button, .language-button {
    height: 38px;
    min-width: 38px;
    border-radius: 11px;
    display: grid;
    place-items: center;
}
.icon-button:hover, .language-button:hover { border-color: var(--line-strong); }
.language-button { padding: 0 11px; font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.mobile-nav-toggle { display: none; }

.hero { min-height: calc(100vh - var(--header-h)); display: grid; align-items: center; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 68px; align-items: center; }
.hero-copy { min-width: 0; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 24px;
    color: var(--success);
    font-size: 12px;
    font-weight: 750;
    letter-spacing: .04em;
    text-transform: uppercase;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 6px color-mix(in srgb, var(--success) 14%, transparent); }
.hero-person { display: flex; align-items: center; gap: 16px; margin-bottom: 26px; }
.avatar {
    width: 78px;
    height: 78px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 20%;
    border: 2px solid var(--line-strong);
    box-shadow: 0 0 0 8px var(--accent-soft);
}
.hero-name { margin: 0 0 4px; font-size: 19px; font-weight: 800; }
.hero-role { margin: 0; color: var(--text-soft); font-size: 13px; }
.hero h1, .project-hero h1, .not-found h1 {
    margin: 0;
    max-width: 850px;
    font-size: clamp(48px, 7vw, 84px);
    line-height: .98;
    letter-spacing: -.055em;
    font-weight: 860;
}
html[dir="rtl"] .hero h1,
html[dir="rtl"] .project-hero h1,
html[dir="rtl"] .not-found h1 { letter-spacing: -.02em; line-height: 1.12; }
.hero h1 {
    background: linear-gradient(120deg, var(--text) 20%, color-mix(in srgb, var(--accent-2) 72%, var(--text)) 92%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}
.hero-summary { max-width: 720px; margin: 28px 0 0; color: var(--text-soft); font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 34px; }
.button {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 17px;
    border: 1px solid transparent;
    border-radius: 13px;
    font-size: 13px;
    font-weight: 760;
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button.primary { background: linear-gradient(135deg, var(--accent), #246edc); color: #fff; box-shadow: 0 12px 32px rgba(45, 140, 255, .20); }
.button.secondary { background: var(--surface-strong); border-color: var(--line-strong); }
.button.ghost { color: var(--text-soft); border-color: var(--line); background: transparent; }
.hero-location { margin-top: 20px; color: var(--text-faint); font-size: 12px; }
.metrics-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 34px; max-width: 690px; }
.metric-card { padding: 17px; border: 1px solid var(--line); border-radius: 15px; background: color-mix(in srgb, var(--surface) 70%, transparent); }
.metric-card strong { display: block; color: var(--accent-2); font-size: 19px; }
.metric-card span { display: block; margin-top: 5px; color: var(--text-faint); font-size: 11px; line-height: 1.45; }

.hero-visual { position: relative; min-height: 570px; display: grid; place-items: center; }
.glow-orb { position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.orb-one { width: 360px; height: 360px; background: radial-gradient(circle, rgba(33, 126, 255, .18), transparent 68%); top: 4%; right: 2%; }
.orb-two { width: 300px; height: 300px; background: radial-gradient(circle, rgba(69, 213, 255, .11), transparent 70%); bottom: 2%; left: 0; }
.architecture-card {
    position: relative;
    width: min(100%, 520px);
    padding: 18px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(rgba(90, 163, 255, .05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(90, 163, 255, .05) 1px, transparent 1px),
        linear-gradient(145deg, rgba(15, 31, 52, .94), rgba(8, 18, 32, .96));
    background-size: 28px 28px, 28px 28px, auto;
    box-shadow: var(--shadow);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    overflow: hidden;
}
html[data-theme="light"] .architecture-card { background: linear-gradient(rgba(30, 110, 210, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(30, 110, 210, .05) 1px, transparent 1px), linear-gradient(145deg, #ffffff, #eff6ff); background-size: 28px 28px, 28px 28px, auto; }
.architecture-card::after { content: ""; position: absolute; inset: -25%; background: linear-gradient(100deg, transparent 40%, rgba(79, 186, 255, .08) 50%, transparent 60%); transform: translateX(-70%); animation: sheen 7s infinite; pointer-events: none; }
@keyframes sheen { 0%, 55% { transform: translateX(-70%); } 80%, 100% { transform: translateX(70%); } }
.architecture-topline { display: flex; justify-content: space-between; align-items: center; color: var(--text-faint); font-size: 11px; }
.terminal-dots { letter-spacing: .22em; color: var(--accent); }
.architecture-svg { width: 100%; height: auto; color: var(--accent-2); }
.arch-node rect { fill: var(--surface-strong); stroke: rgba(76, 161, 255, .34); stroke-width: 1.3; }
.arch-node text { fill: var(--text-soft); font-size: 15px; font-weight: 700; font-family: var(--font); }
.accent-node rect { fill: rgba(45, 140, 255, .16); stroke: rgba(84, 215, 255, .65); }
.accent-node text { fill: var(--accent-2); }
.arch-lines { stroke-dasharray: 6 8; animation: dash 10s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -140; } }
.architecture-caption { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 4px 4px; }
.architecture-caption span { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--text-faint); font-size: 10px; background: color-mix(in srgb, var(--surface) 80%, transparent); }

.section-kicker { margin: 0 0 14px; color: var(--accent-2); font-size: 11px; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.split-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 88px; align-items: start; }
.split-layout h2, .section-heading h2, .education-skills-grid h2, .principle-list + h2 {
    margin: 0;
    font-size: clamp(34px, 4vw, 54px);
    line-height: 1.08;
    letter-spacing: -.04em;
}
html[dir="rtl"] .split-layout h2,
html[dir="rtl"] .section-heading h2,
html[dir="rtl"] .education-skills-grid h2 { letter-spacing: -.015em; line-height: 1.25; }
.prose-card > p { margin: 0; color: var(--text-soft); font-size: 16px; line-height: 2; }
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 30px; }
.principles-grid > div { padding: 17px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); }
.principles-grid strong { display: block; font-size: 12px; }
.principles-grid span { display: block; margin-top: 6px; color: var(--text-faint); font-size: 11px; line-height: 1.55; }

.section-heading { display: grid; grid-template-columns: 1fr .62fr; gap: 70px; align-items: end; margin-bottom: 46px; }
.section-heading > p { margin: 0; color: var(--text-faint); font-size: 13px; line-height: 1.8; }
.expertise-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.expertise-card, .project-card, .package-card {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 88%, transparent), color-mix(in srgb, var(--surface-strong) 84%, transparent));
}
.expertise-card { min-height: 310px; padding: 25px; }
.expertise-card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 60%; height: 1px; background: linear-gradient(90deg, var(--accent), transparent); opacity: .6; }
.expertise-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; background: var(--accent-soft); color: var(--accent-2); font-size: 11px; font-weight: 850; }
.expertise-card h3, .project-card h3, .education-list h3 { margin: 24px 0 10px; font-size: 18px; }
.expertise-card p, .project-card p, .education-list p, .package-card p { color: var(--text-soft); font-size: 13px; line-height: 1.8; }
.tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.tag { padding: 6px 8px; border: 1px solid var(--line); border-radius: 999px; color: var(--text-faint); background: color-mix(in srgb, var(--surface) 78%, transparent); font-size: 10px; }

.timeline { position: relative; display: grid; gap: 0; }
.timeline::before { content: ""; position: absolute; inset-block: 0; inset-inline-start: 11px; width: 1px; background: linear-gradient(var(--accent), var(--line) 60%, transparent); }
.timeline-item { position: relative; display: grid; grid-template-columns: 190px 1fr; gap: 36px; padding: 0 0 58px 48px; }
html[dir="rtl"] .timeline-item { padding: 0 48px 58px 0; }
.timeline-marker { position: absolute; inset-inline-start: 4px; top: 7px; width: 15px; height: 15px; border: 3px solid var(--bg); border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.timeline-meta { display: flex; flex-direction: column; gap: 7px; color: var(--text-faint); font-size: 11px; line-height: 1.5; }
.timeline-body { padding: 0 0 36px; border-bottom: 1px solid var(--line); }
.timeline-body h3 { margin: 0; font-size: 21px; }
.company { margin: 7px 0 18px; color: var(--accent-2); font-size: 12px; font-weight: 700; }
.timeline-body ul { margin: 0; padding-inline-start: 18px; color: var(--text-soft); }
.timeline-body li { margin-bottom: 8px; font-size: 13px; line-height: 1.75; }

.projects-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 14px; }
.project-card { padding: 26px; min-height: 300px; display: flex; flex-direction: column; }
.project-card:nth-child(3) { grid-column: 2; }
.featured-project { grid-row: span 2; min-height: 614px; background: radial-gradient(circle at 80% 16%, rgba(45, 140, 255, .14), transparent 18rem), linear-gradient(150deg, color-mix(in srgb, var(--surface) 92%, transparent), var(--surface-strong)); }
.featured-project h3 { font-size: clamp(30px, 4vw, 48px); margin-top: 44px; }
.featured-project p { max-width: 590px; font-size: 15px; }
.project-topline { display: flex; justify-content: space-between; color: var(--text-faint); font-size: 10px; letter-spacing: .14em; }
.text-link { margin-top: auto; padding-top: 30px; color: var(--accent-2); font-size: 12px; font-weight: 800; }

.education-skills-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.education-list { margin-top: 30px; display: grid; gap: 12px; }
.education-list article { padding: 18px 0; border-bottom: 1px solid var(--line); }
.education-list h3 { margin: 0 0 6px; }
.education-list p { margin: 0; }
.education-list span { display: inline-block; margin-top: 8px; color: var(--text-faint); font-size: 11px; }
.skills-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 30px; }
.skills-cloud span { padding: 11px 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--text-soft); font-size: 12px; }

.contact-section { padding-top: 70px; }
.contact-card { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: end; padding: 46px; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: radial-gradient(circle at 86% 10%, rgba(45, 140, 255, .14), transparent 22rem), var(--surface-strong); box-shadow: var(--shadow); }
.contact-card h2 { margin: 0; max-width: 760px; font-size: clamp(34px, 5vw, 62px); line-height: 1.06; letter-spacing: -.04em; }
html[dir="rtl"] .contact-card h2 { letter-spacing: -.01em; line-height: 1.2; }
.contact-card p { margin: 18px 0 0; max-width: 760px; color: var(--text-soft); line-height: 1.9; }
.contact-actions { display: flex; gap: 10px; }

.site-footer { padding: 46px 0; border-top: 1px solid var(--line); margin-top: 96px; }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.footer-brand { gap: 10px; }
.footer-brand .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
.footer-grid p { margin: 14px 0 0; color: var(--text-faint); font-size: 12px; }
.footer-meta { display: flex; flex-direction: column; gap: 7px; color: var(--text-faint); font-size: 10px; text-align: end; }

.project-hero { padding-top: 140px; }
.project-hero h1 { margin-top: 18px; }
.project-lead { max-width: 830px; margin: 30px 0 0; color: var(--text-soft); font-size: 18px; line-height: 1.9; }
.back-link { color: var(--text-faint); font-size: 12px; }
.tcj-package-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.package-card { padding: 22px; }
.package-card code { color: var(--accent-2); font-size: 12px; }
.package-card p { margin-bottom: 0; }
.principle-list { margin-top: 40px; display: grid; gap: 12px; }
.principle-list > div { display: grid; grid-template-columns: 220px 1fr; gap: 30px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.principle-list strong { font-size: 14px; }
.principle-list p { margin: 0; color: var(--text-soft); font-size: 13px; line-height: 1.8; }
.not-found { min-height: 70vh; display: grid; align-items: center; }
.not-found p:not(.section-kicker) { color: var(--text-soft); }

.loading-screen, .boot-screen { min-height: 70vh; display: grid; place-items: center; align-content: center; gap: 16px; color: var(--text-faint); }
.loader { width: 34px; height: 34px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
#blazor-error-ui { display: none; position: fixed; inset: auto 18px 18px; z-index: 999; padding: 12px 15px; border: 1px solid #d25b5b; border-radius: 12px; background: #2a1111; color: #fff; box-shadow: var(--shadow); }
#blazor-error-ui .reload { text-decoration: underline; margin-inline: 8px; }
#blazor-error-ui .dismiss { border: 0; background: transparent; color: inherit; cursor: pointer; font-size: 18px; }

:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; }

@media (max-width: 1050px) {
    .hero-grid { grid-template-columns: 1fr; gap: 30px; }
    .hero-visual { min-height: 470px; }
    .architecture-card { width: min(100%, 620px); transform: none; }
    .expertise-grid { grid-template-columns: repeat(2, 1fr); }
    .section-heading { grid-template-columns: 1fr; gap: 18px; }
    .projects-grid { grid-template-columns: 1fr; }
    .project-card:nth-child(3) { grid-column: auto; }
    .featured-project { min-height: 480px; }
}

@media (max-width: 820px) {
    :root { --header-h: 68px; }
    .container { width: min(calc(100% - 28px), var(--container)); }
    .section-pad { padding: 78px 0; }
    .brand-copy { display: none; }
    .nav-shell { grid-template-columns: auto 1fr auto; gap: 12px; }
    .mobile-nav-toggle {
        justify-self: end;
        width: 40px;
        height: 38px;
        border-radius: 11px;
        display: grid;
        place-content: center;
        gap: 4px;
    }
    .mobile-nav-toggle span { width: 17px; height: 1px; background: var(--text); }
    .primary-nav {
        position: fixed;
        top: calc(var(--header-h) + 8px);
        left: 14px;
        right: 14px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: var(--surface-strong);
        box-shadow: var(--shadow);
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }
    .primary-nav.is-open { display: flex; }
    .primary-nav a { padding: 13px; border-radius: 10px; }
    .primary-nav a:hover { background: var(--accent-soft); }
    .header-actions { grid-column: 2; grid-row: 1; justify-self: end; }
    .mobile-nav-toggle { grid-column: 3; }
    .hero { min-height: auto; }
    .hero h1, .project-hero h1, .not-found h1 { font-size: clamp(43px, 13vw, 70px); }
    .metrics-grid { grid-template-columns: 1fr; }
    .hero-visual { min-height: 380px; }
    .architecture-card { padding: 14px; }
    .split-layout { grid-template-columns: 1fr; gap: 30px; }
    .principles-grid { grid-template-columns: 1fr; }
    .expertise-grid { grid-template-columns: 1fr; }
    .timeline-item { grid-template-columns: 1fr; gap: 14px; padding-inline-start: 42px; }
    html[dir="rtl"] .timeline-item { padding-inline-start: 42px; padding-inline-end: 0; }
    .timeline-meta { flex-direction: row; flex-wrap: wrap; gap: 12px; }
    .education-skills-grid { grid-template-columns: 1fr; gap: 60px; }
    .contact-card { grid-template-columns: 1fr; padding: 28px; }
    .contact-actions { flex-wrap: wrap; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-meta { text-align: start; }
    .tcj-package-grid { grid-template-columns: 1fr; }
    .principle-list > div { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 520px) {
    .section-pad { padding: 64px 0; }
    .hero-person { align-items: flex-start; }
    .avatar { width: 68px; height: 68px; }
    .hero-summary { font-size: 15px; }
    .hero-actions .button { width: 100%; }
    .hero-visual { min-height: 320px; }
    .architecture-caption { display: none; }
    .featured-project { min-height: 420px; }
    .contact-card { padding: 24px 20px; }
    .contact-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}