:root {
    --bg: #0d0f14;
    --bg-2: #10131a;
    --surface: #161a22;
    --surface-2: #1c212b;
    --border: #262c38;
    --text: #e7ecf3;
    --muted: #9aa4b2;
    --faint: #6b7280;
    --accent: #22d3ee;      /* cyan */
    --accent-2: #a78bfa;    /* violet */
    --accent-grad: linear-gradient(135deg, #22d3ee 0%, #a78bfa 100%);
    --radius: 16px;
    --maxw: 960px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    background-image:
        radial-gradient(60rem 40rem at 80% -10%, rgba(167, 139, 250, 0.10), transparent 60%),
        radial-gradient(50rem 40rem at -10% 10%, rgba(34, 211, 238, 0.08), transparent 55%);
    background-attachment: fixed;
}

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

h1, h2, h3, h4 { line-height: 1.2; margin: 0; }

/* ---------- NAV ---------- */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    background: rgba(13, 15, 20, 0.72);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; }
.brand-mark {
    display: grid; place-items: center;
    width: 34px; height: 34px;
    border-radius: 9px;
    background: var(--accent-grad);
    color: #0b0d12;
    font-weight: 800;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}
.brand-name { font-size: 0.98rem; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a { color: var(--muted); font-size: 0.92rem; transition: color 0.18s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
    padding: 0.5rem 0.95rem;
    border-radius: 999px;
    background: var(--accent-grad);
    color: #0b0d12 !important;
    font-weight: 600;
}
.nav-cta:hover { filter: brightness(1.08); }
.nav-toggle, .nav-burger { display: none; }

/* ---------- HERO ---------- */
.hero {
    position: relative;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 6rem 1.25rem 4rem;
    overflow: hidden;
}
.hero-inner {
    position: relative; z-index: 2;
    display: flex;
    align-items: center;
    gap: 2.75rem;
}
.hero-text { flex: 1; min-width: 0; }
.hero-photo {
    flex-shrink: 0;
    width: 260px; height: 260px;
    border-radius: 50%;
    padding: 4px;
    background: var(--accent-grad);
    box-shadow: 0 16px 50px -14px rgba(34, 211, 238, 0.45);
}
.hero-photo img {
    width: 100%; height: 100%;
    display: block;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg);
}
.hero-eyebrow { color: var(--accent); font-family: var(--mono); font-size: 0.9rem; margin: 0 0 0.6rem; letter-spacing: 1px; }
.hero-name {
    font-size: clamp(2.4rem, 7vw, 4.2rem);
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(180deg, #ffffff, #b9c2d0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-title {
    font-size: clamp(1.1rem, 3vw, 1.6rem);
    color: var(--accent-2);
    font-weight: 600;
    margin: 0.4rem 0 1rem;
}
.hero-meta { color: var(--muted); margin: 0 0 1.8rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 1.6rem; }
.hero-links { display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem; color: var(--muted); font-size: 0.92rem; }
.hero-links a:hover { color: var(--accent); }
.hero-links .dot { color: var(--faint); }
.hero-glow {
    position: absolute; z-index: 1;
    top: -20%; right: -10%;
    width: 420px; height: 420px;
    background: var(--accent-grad);
    filter: blur(120px);
    opacity: 0.18;
    border-radius: 50%;
}

.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.7rem 1.3rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.15s, filter 0.15s, background 0.15s;
    cursor: pointer;
    border: 1px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent-grad); color: #0b0d12; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- SECTIONS ---------- */
.section {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 3.5rem 1.25rem;
}
.section-head { display: flex; align-items: baseline; gap: 0.9rem; margin-bottom: 2rem; }
.section-num { font-family: var(--mono); color: var(--accent); font-size: 0.9rem; }
.section-head h2 { font-size: clamp(1.5rem, 4vw, 2.1rem); font-weight: 700; }
.section-head::after {
    content: ""; flex: 1; height: 1px;
    background: linear-gradient(90deg, var(--border), transparent);
    margin-left: 0.5rem;
}
.lead { color: var(--muted); font-size: 1.08rem; max-width: 60ch; }
.sub-heading { margin: 2.5rem 0 1.2rem; font-size: 1.15rem; color: var(--text); }

/* ---------- CARDS ---------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4rem 1.5rem;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.card:hover {
    border-color: rgba(34, 211, 238, 0.45);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px -20px rgba(34, 211, 238, 0.4);
}
.timeline { display: flex; flex-direction: column; gap: 1rem; }
.card-top { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; margin-bottom: 0.8rem; }
.card-top h3 { font-size: 1.1rem; }
.card-sub { color: var(--accent-2); margin: 0.25rem 0 0; font-size: 0.95rem; font-weight: 500; }
.period {
    flex-shrink: 0;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--muted);
    background: var(--surface-2);
    border: 1px solid var(--border);
    padding: 0.3rem 0.6rem;
    border-radius: 8px;
    white-space: nowrap;
}
.bullets { margin: 0.5rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.bullets li { margin-bottom: 0.4rem; }

/* ---------- CHIPS ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1rem; }
.chip {
    font-family: var(--mono);
    font-size: 0.74rem;
    color: var(--accent);
    background: rgba(34, 211, 238, 0.08);
    border: 1px solid rgba(34, 211, 238, 0.22);
    padding: 0.28rem 0.6rem;
    border-radius: 7px;
}
.chip-lg { font-size: 0.82rem; padding: 0.4rem 0.75rem; }

/* ---------- PROJECTS ---------- */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
}
.project-card { display: flex; flex-direction: column; }
.project-top { display: flex; justify-content: space-between; align-items: baseline; gap: 0.5rem; }
.project-top h3 { font-size: 1.05rem; }
.project-year { font-family: var(--mono); font-size: 0.8rem; color: var(--faint); }
.project-desc { color: var(--muted); font-size: 0.95rem; margin: 0.6rem 0 0; flex: 1; }
.project-links { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1rem; }
.project-links a { color: var(--accent); font-size: 0.86rem; font-weight: 600; }
.project-links a:hover { color: var(--accent-2); }

/* ---------- SKILLS + EDU ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }
.skill-group { margin-bottom: 1.6rem; }
.skill-group h4 { color: var(--faint); text-transform: uppercase; letter-spacing: 1px; font-size: 0.78rem; margin-bottom: 0.7rem; }

/* ---------- CONTACT ---------- */
.contact-box { padding: 2rem; }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-top: 1.5rem; }
.contact-item {
    display: flex; flex-direction: column; gap: 0.25rem;
    padding: 1rem 1.1rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: border-color 0.18s, transform 0.18s;
}
.contact-item:hover { border-color: var(--accent); transform: translateY(-2px); }
.contact-label { font-size: 0.75rem; color: var(--faint); text-transform: uppercase; letter-spacing: 1px; }
.contact-value { color: var(--text); font-weight: 600; font-size: 0.95rem; word-break: break-word; }

/* ---------- FOOTER ---------- */
.site-footer {
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 2rem 1.25rem;
    color: var(--faint);
    font-size: 0.85rem;
}

/* ---------- REVEAL ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 720px) {
    .two-col { grid-template-columns: 1fr; }
    .nav-burger {
        display: flex; flex-direction: column; gap: 5px;
        cursor: pointer; padding: 6px; z-index: 60;
    }
    .nav-burger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.25s; }
    .nav-links {
        position: fixed;
        top: 61px; left: 0; right: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        background: var(--bg-2);
        border-bottom: 1px solid var(--border);
        padding: 0.5rem 1.25rem 1.2rem;
        transform: translateY(-140%);
        transition: transform 0.28s ease;
    }
    .nav-links a { width: 100%; padding: 0.75rem 0; }
    .nav-cta { margin-top: 0.6rem; text-align: center; }
    .nav-toggle:checked ~ .nav-links { transform: translateY(0); }
    .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
    .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .card-top { flex-direction: column; }
    .hero { padding-top: 4rem; }
    .hero-inner { flex-direction: column-reverse; align-items: flex-start; gap: 1.75rem; }
    .hero-photo { width: 150px; height: 150px; }
}

/* ---------- BLAZOR LOADING / ERROR ---------- */
.loading-progress {
    position: absolute; display: block;
    width: 8rem; height: 8rem;
    inset: 20vh 0 auto 0; margin: 0 auto;
}
.loading-progress circle {
    fill: none; stroke: var(--border);
    stroke-width: 0.6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}
.loading-progress circle:last-child {
    stroke: var(--accent);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}
.loading-progress-text {
    position: absolute; text-align: center; font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
    color: var(--muted); font-family: var(--mono);
}
.loading-progress-text:after { content: var(--blazor-load-percentage-text, "Loading"); }

#blazor-error-ui {
    color-scheme: dark only;
    background: #b91c1c; color: #fff;
    bottom: 0; box-shadow: 0 -1px 2px rgba(0,0,0,0.2);
    box-sizing: border-box; display: none;
    left: 0; padding: 0.7rem 1.25rem; position: fixed; width: 100%; z-index: 1000;
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }
#blazor-error-ui .reload { color: #fff; text-decoration: underline; }