:root {
    --bg: #090b0f;
    --panel: #101720;
    --panel-2: #151f2a;
    --line: #283545;
    --text: #eef5f8;
    --muted: #aab8c5;
    --cyan: #42d9ff;
    --green: #39f6a3;
    --gold: #ffd166;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--text);
    font-family: "Segoe UI", Arial, sans-serif;
    line-height: 1.6;
    background:
        radial-gradient(circle at 10% 8%, rgba(66, 217, 255, 0.14), transparent 28%),
        linear-gradient(135deg, #090b0f 0%, #111827 52%, #0b1417 100%);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 16px clamp(18px, 5vw, 72px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(9, 11, 15, 0.88);
    backdrop-filter: blur(16px);
}

.brand {
    color: var(--text);
    font-weight: 800;
    text-decoration: none;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.nav a {
    color: var(--muted);
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 8px 12px;
    font-weight: 700;
    text-decoration: none;
}

.nav a:hover,
.nav a.active {
    color: var(--text);
    border-color: rgba(66, 217, 255, 0.38);
    background: rgba(66, 217, 255, 0.1);
}

.container {
    width: min(1120px, calc(100% - 36px));
    margin: 0 auto;
    padding: clamp(34px, 6vw, 72px) 0 64px;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
    gap: clamp(22px, 5vw, 56px);
    align-items: end;
    margin-bottom: 34px;
}

.hero-card,
section {
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    background: rgba(16, 23, 32, 0.78);
}

.hero-card {
    padding: 22px;
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--green);
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.88rem;
}

h1 {
    margin: 0;
    color: #ffffff;
    font-size: clamp(2.4rem, 5vw, 4.8rem);
    line-height: 0.98;
}

h2,
h3 {
    color: #ffffff;
    margin-top: 0;
}

h2 {
    color: var(--cyan);
    font-size: clamp(1.45rem, 3vw, 2rem);
}

p,
li {
    color: #c7d3dc;
}

a {
    color: var(--cyan);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

section {
    margin-top: 18px;
    padding: clamp(22px, 4vw, 34px);
}

.lead {
    margin: 18px 0 0;
    max-width: 740px;
    color: #c7d3dc;
    font-size: 1.08rem;
}

.quick-facts,
.page-grid {
    display: grid;
    gap: 12px;
}

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

.fact,
.page-card,
.project-box {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel-2);
    padding: 18px;
}

.fact b {
    display: block;
    color: var(--gold);
    font-size: 1.25rem;
}

.fact span {
    color: var(--muted);
    font-size: 0.92rem;
}

.page-card {
    color: inherit;
    text-decoration: none;
}

.page-card:hover {
    border-color: rgba(66, 217, 255, 0.48);
    background: #192636;
    text-decoration: none;
}

.project-box {
    border-left: 4px solid var(--cyan);
    margin: 18px 0;
}

.diploma-container {
    text-align: center;
    margin: 24px 0 8px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #0c1219;
}

.diploma-img {
    max-width: min(100%, 760px);
    height: auto;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

code {
    background: #0c1219;
    border: 1px solid var(--line);
    padding: 2px 5px;
    border-radius: 4px;
    font-family: Consolas, monospace;
}

.btn {
    display: inline-block;
    margin-top: 18px;
    padding: 12px 18px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--cyan), var(--green));
    color: #061014 !important;
    font-weight: bold;
    text-decoration: none;
}

footer {
    margin-top: 28px;
    text-align: center;
    font-size: 0.85rem;
    color: #788692;
}

@media (max-width: 760px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .nav {
        justify-content: flex-start;
    }

    .hero,
    .page-grid {
        grid-template-columns: 1fr;
    }
}