/* ====== Design Tokens ====== */
:root {
    --bg: #0b0f1a;
    /* base background */
    --bg-soft: #0f172a;
    /* cards */
    --text: #e5e7eb;
    /* primary text */
    --muted: #a1a1aa;
    /* secondary text */
    --brand: #60a5fa;
    /* accents */
    --brand-strong: #1d4ed8;
    /* buttons/links hover */
    --border: #38b6ff;
    /* hairlines */
    --ring: 0 0 0 4px rgba(96, 165, 250, 0.25);
    --radius: 16px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    --container: 1120px;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #f8fafc;
        --bg-soft: #ffffff;
        --text: #0b1220;
        --muted: #475569;
        --brand: #2563eb;
        --brand-strong: #1d4ed8;
        --border: #38b6ff;
        --shadow: 0 10px 30px rgba(2, 6, 23, 0.08);
    }
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Roboto, Helvetica, Arial;
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.6;
}

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

a:hover {
    color: var(--brand-strong);
}

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* ====== Header / Nav ====== */

header {
    backdrop-filter: saturate(1.2) blur(8px);
    background: color-mix(in oklab, var(--bg) 85%, transparent);
    border-bottom: 1px solid var(--border);
}

/* ====== Hero ====== */
.hero {
    padding: 96px 0 48px;
}

.hero h1 {
    font-size: clamp(28px, 5vw, 56px);
    line-height: 1.1;
    margin: 0 0 14px;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: clamp(16px, 2.2vw, 20px);
    color: var(--muted);
    max-width: 56ch;
    margin: 0 0 28px;
}

#profile-img {
    border-radius: var(--radius);
    overflow: hidden;
}

.badges {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.badge {
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    font-weight: 600;
    font-size: 14px;
}

/* ====== Sections ====== */
section {
    padding: 72px 0;
}

.section-title {
    font-size: clamp(22px, 4vw, 32px);
    margin: 0 0 24px;
    letter-spacing: -0.01em;
}

.muted {
    color: var(--muted);
}

/* Cards / grids */
.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}

.card {
    grid-column: span 4;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
    transition: transform .18s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.card h3 {
    margin: 6px 0 6px;
    font-size: 18px;
}

.card p {
    margin: 0;
    color: var(--muted);
}

@media (max-width: 980px) {
    .card {
        grid-column: span 6;
    }
}

@media (max-width: 600px) {
    .card {
        grid-column: span 12;
    }
}

.feature-icon {
    width: 28px;
    height: 28px;
    opacity: 0.9;
}

/* ====== Projects ====== */
.project {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
}

.project+.project {
    margin-top: 20px;
}

.project .project-description {
    align-content: center;
}

.project a {
    color: var(--text)
}

.project .links {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
}

.project .links a > span {
    display: flex;
    align-items: center;
}

.project .links a > span > i {
    margin-right: 5px;
}

.project i.bi {
    font-size: 1.5rem;
}

#falling-blocks-img-container {
    display: flex;
    justify-content: center;
}

#falling-blocks-img-container > img {
    max-width: 250px;
}

/* ====== Footer ====== */

footer {
    padding: 40px 0 60px;
    color: var(--muted);
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

.footer-row {
    display: flex;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
}

.links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}