:root {
    --bg: #0b0d10;
    --panel: #12161b;
    --text: #e8edf2;
    --muted: #a7b1bb;
    --accent: #6aa3ff;
    --accent-2: #9b6bff;
    --radius: 16px;
    --maxw: 980px;
    --gap: 1rem;
}

* {
    box-sizing: border-box
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    background: radial-gradient(1200px 800px at 10% -10%, rgba(155, 107, 255, .18), transparent 40%), radial-gradient(1000px 700px at 110% 20%, rgba(106, 163, 255, .16), transparent 35%), var(--bg);
    color: var(--text);
    font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.6;
    letter-spacing: .2px;
}

.container {
    max-width: var(--maxw);
    margin-inline: auto;
    padding: 32px 20px 56px;
}

h1,
h2,
h3,
h4,
h5 {
    margin: 0.6em 0 0.35em;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2rem, 4.5vw, 3rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(1.35rem, 2.8vw, 1.75rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.1rem, 2.3vw, 1.25rem);
    font-weight: 600;
    color: var(--muted);
}

h4,
h5 {
    color: var(--muted)
}

p {
    margin: 0 0 1rem;
}

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

a:hover,
a:focus-visible {
    text-decoration: underline;
    text-underline-offset: 3px;
}

img,
video {
    display: block;
    max-width: 50%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: 0 8px 30px rgba(0, 0, 0, .35);
    margin: 14px 0;
    background: #0a0a0a;
}

ul {
    padding-left: 1.2rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.00));
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 14px 18px;
    border-radius: var(--radius);
    margin: 12px 0 18px;
}

li {
    margin: .25rem 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--gap);
}

.card {
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: var(--radius);
    padding: 16px;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}

.card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, .18);
    box-shadow: 0 12px 36px rgba(0, 0, 0, .45);
}

button,
.btn {
    display: inline-block;
    padding: .6rem 1rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, .08);
    background: linear-gradient(180deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02));
    color: var(--text);
    font-weight: 600;
    cursor: pointer;
    transition: transform .1s ease, border-color .15s ease, background .15s ease;
}

button:hover,
.btn:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, .22);
}

table {
    width: 100%;
    border-collapse: collapse;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, .08);
}

th,
td {
    text-align: left;
    padding: 12px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
}

tr:hover td {
    background: rgba(255, 255, 255, .02);
}

@media (prefers-color-scheme: light) {
     :root {
        --bg: #f6f7fb;
        --panel: #ffffff;
        --text: #0c1116;
        --muted: #52606d;
        --accent: #2749ff;
        --accent-2: #8b5cf6;
    }
    img,
    video {
        box-shadow: 0 6px 20px rgba(0, 0, 0, .1);
    }
}
/* --- Top Navigation --- */
.topnav{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(10px);
  background: rgba(10,12,14,.5);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.topnav .nav-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.topnav a.brand{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  font-weight: 700;
  color: var(--text);
  text-decoration:none;
  border:1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  padding: .45rem .75rem;
}
.topnav a.brand:hover{ border-color: rgba(255,255,255,.28); }

/* --- Index projects grid --- */
.projects-grid.grid{
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.project-card img{ max-width: 100%; margin: 0 0 .75rem; }
.project-card p{ margin: 0; font-weight:600; }
.project-card a{ text-decoration: none; }