:root {
    --bg-color: #FAFAF9;
    --surface-color: #FFFFFF;
    --text-main: #1C1917;
    --text-muted: #57534E;
    --accent: #4338CA;
    --accent-hover: #3730A3;
    --border-color: #E7E5E4;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: 'Lora', serif;
    font-weight: 500;
    color: var(--text-main);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(250, 250, 249, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-family: 'Lora', serif;
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-main);
}

.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--accent);
}

main {
    max-width: 900px;
    margin: 4rem auto;
    padding: 0 5%;
    min-height: calc(100vh - 200px);
}

.hero {
    display: flex;
    align-items: center;
    gap: 4rem;
    margin-bottom: 5rem;
}

.hero-text { flex: 1; }
.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.profile-img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.placeholder-img {
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--accent);
    font-family: 'Lora', serif;
    font-style: italic;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: background-color 0.2s, transform 0.2s;
}

.btn:hover { background-color: var(--accent-hover); transform: translateY(-1px); }
.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}
.btn-outline:hover { background-color: var(--surface-color); color: var(--accent); }

.button-group { display: flex; gap: 1rem; }

.section-title { font-size: 2rem; margin-bottom: 2rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border-color); }

.card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem;
    margin-bottom: 1.5rem;
    transition: box-shadow 0.3s;
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.card-title { font-size: 1.35rem; margin-bottom: 0.5rem; }
.card-meta { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 1rem; font-style: italic; }

footer {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero { flex-direction: column-reverse; text-align: center; gap: 2rem; }
    .button-group { justify-content: center; }
}