/* ---------- Reset ---------- */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ---------- Global ---------- */

:root {
    --primary: #0f172a;
    --secondary: #334155;
    --accent: #2563eb;
    --background: #f8fafc;
    --card: #ffffff;
    --border: #e2e8f0;
    --text: #334155;
}

body {
    font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.7;
}

main {
    max-width: 900px;
    margin: auto;
    padding: 3rem 2rem;
}

/* ---------- Hero ---------- */
header {
    position: relative;
    min-height: 420px;
    background:
        linear-gradient(
            90deg,
            rgba(10,20,40,.82) 0%,
            rgba(10,20,40,.60) 28%,
            rgba(10,20,40,.35) 45%,
            rgba(10,20,40,.35) 100%
        ),
        url("assets/profile.jpg") center center / cover no-repeat;

    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 8%;
}

.hero {
    width: 38%;
    max-width: 430px;
    text-align: left;
}

.profile {
    display: none;
}

.hero h1 {
    font-size: 3.3rem;
    line-height: 1.1;
    font-weight: 700;
    color: white;
}

.hero h2 {
    margin-top: 1rem;
    font-size: 1.4rem;
    font-weight: 300;
    color: #e2e8f0;
    line-height: 1.4;
}

.hero p {
    margin-top: 1.8rem;
    display: inline-block;
    background: rgba(255,255,255,.12);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 999px;
    padding: .7rem 1.3rem;
    color: white;
    font-size: .9rem;
    text-transform: uppercase;
    letter-spacing: .08em;
}

/* ---------- Sections ---------- */

section {
    background: var(--card);
    margin-bottom: 2rem;
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 25px rgba(15,23,42,.05);
}

section h3 {
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

section h3::after {
    content: "";
    display: block;
    width: 50px;
    height: 3px;
    background: var(--accent);
    margin-top: .4rem;
    border-radius: 2px;
}

section p {
    font-size: 1.05rem;
    color: var(--secondary);
}

/* ---------- Links ---------- */

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

a:hover {
    text-decoration: underline;
}

/* ---------- Footer ---------- */

footer {
    text-align: center;
    color: #64748b;
    padding: 2rem;
    font-size: .9rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 768px) {

    header {
        padding: 4rem 1.5rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero h2 {
        font-size: 1.15rem;
    }

    .profile {
        width: 140px;
        height: 140px;
    }

    main {
        padding: 2rem 1rem;
    }

    section {
        padding: 2rem;
    }

}

.expertise {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 1.5rem;
    padding: 0;
}

.expertise li {
    background: #eff6ff;
    color: #1e3a8a;
    border: 1px solid #bfdbfe;
    border-radius: 999px;
    padding: .65rem 1rem;
    font-weight: 600;
    font-size: .95rem;
}


/* ---------- About Section ---------- */

.about {
    max-width: 850px;
}

.about h3 {
    margin-bottom: 1.5rem;
}

.about .intro {
    font-size: 1.25rem;
    line-height: 1.8;
    color: #1e293b;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.about p {
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
    line-height: 1.8;
    color: #475569;
}

.about strong {
    color: #1d4ed8;
    font-weight: 600;
}


.section-label {
    display: block;
    font-size: .75rem;
    letter-spacing: .15em;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: .6rem;
}

.about h3 {
    margin-bottom: 1.5rem;
}