:root {
    --bg: #0b0f1a;
    --panel: #121826;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --accent: #60a5fa;
    --border: #1f2937;
    --header-offset: 96px;
}
* {
    box-sizing: border-box;
}
html,
body {
    height: 100%;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
        Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji",
        "Segoe UI Emoji";
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}
.container {
    width: min(100%, 1000px);
    margin-inline: auto;
    padding: 24px;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(11, 15, 26, 0.8);
    backdrop-filter: saturate(150%) blur(8px);
    border-bottom: 1px solid var(--border);
}
.site-header .container {
    display: flex;
    align-items: center;
    gap: 24px;
}
.nav-toggle {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    color: var(--text);
    background: transparent;
    border: 1px solid var(--border);
    cursor: pointer;
}
.nav-toggle:hover {
    background: var(--panel);
}
.logo-link {
    display: inline-flex;
    align-items: center;
}
.site-logo {
    display: block;
    width: 54px;
    height: 54px;
}
.brand {
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.2px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.brand-avatar {
    border-radius: 50%;
    display: block;
    width: 48px;
    height: 48px;
    object-fit: cover;
    border: 1px solid var(--border);
}
.nav {
    display: none;
}
.nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 10px 8px;
    border-radius: 8px;
}
.nav a:hover {
    color: var(--text);
    background: var(--panel);
}

.site-header.open .nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(11, 15, 26, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 8px 16px 16px;
}
.site-header.open .nav a {
    padding: 10px 12px;
}
.site-header.open .logo-link {
    display: none;
}

.hero {
    padding: 24px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-top: 24px;
}
.hero h1 {
    margin: 0 0 8px 0;
    font-size: clamp(28px, 5vw, 40px);
}
.subtitle {
    color: var(--muted);
    margin-top: 0;
}
.contact {
    list-style: none;
    padding: 0;
    margin: 16px 0;
    display: grid;
    gap: 6px;
}

section {
    margin-top: 32px;
}
section[id] {
    scroll-margin-top: var(--header-offset);
}
section h2 {
    margin: 0 0 8px 0;
    font-size: 22px;
}
.skills {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}
.skills > div {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
}
.job {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin-top: 12px;
}
.job header {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: baseline;
}
.job .period {
    color: var(--muted);
}
.job .role {
    color: var(--muted);
}
.projects ul {
    margin: 8px 0 0 0;
}

.site-footer {
    margin-top: 40px;
    border-top: 1px solid var(--border);
}
.site-footer p {
    color: var(--muted);
}

a {
    color: var(--accent);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}
.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}
.cta-row {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}
.btn {
    display: inline-block;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    background: transparent;
}
.btn:hover {
    background: var(--panel);
}
.btn-primary {
    background: var(--accent);
    color: #0b0f1a;
    border-color: transparent;
}
.btn-primary:hover {
    filter: brightness(0.95);
}

.steps {
    list-style: none;
    padding: 0;
    margin: 12px 0 0 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}
.steps li {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
}

@media (min-width: 800px) {
    .nav-toggle {
        display: none;
    }
    .site-header .container {
        gap: 24px;
    }
    .nav {
        display: flex;
        margin-left: auto;
        gap: 16px;
        position: static;
        background: transparent;
        padding: 0;
    }
    .site-header.open .nav {
        display: flex;
        flex-direction: row;
        top: auto;
        left: auto;
        right: auto;
        background: transparent;
        border: 0;
        padding: 0;
    }
    .site-header.open .logo-link {
        display: inline-flex;
    }
}