* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', Arial, sans-serif;
    background: #07111F;
    color: #F5F7FA;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

a { color: #0074FF; text-decoration: none; transition: color 200ms; }
a:hover { color: #3399FF; }

::selection { background: #0074FF; color: #fff; }

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Header ── */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(7, 17, 31, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid #243245;
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.site-name {
    font-weight: 600;
    font-size: 1.05rem;
    color: #F5F7FA;
    letter-spacing: -0.01em;
}

.site-name:hover { color: #F5F7FA; }

/* ── Hero / Intro ── */
.intro {
    display: flex;
    gap: 48px;
    align-items: center;
    padding: 60px 0 28px;
}

.profile-img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 3px solid #0074FF;
    box-shadow: 0 0 24px rgba(0, 116, 255, 0.2);
}

.intro-text h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
    line-height: 1.2;
}

.intro-text .subtitle {
    font-size: 0.95rem;
    color: #9AA8BC;
    margin-bottom: 18px;
    line-height: 1.5;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 4px;
    background: #0074FF;
    color: #fff;
    font-family: 'Inter', Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 200ms;
    border: none;
    text-decoration: none;
    line-height: 1.4;
}

.btn:hover {
    background: #0066DD;
    color: #fff;
}

/* ── Content ── */
.page {
    padding-bottom: 48px;
}

.page p {
    font-size: 0.95rem;
    color: #D6DFE8;
    margin-bottom: 16px;
    line-height: 1.8;
}

.page p a {
    color: #0074FF;
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: rgba(0, 116, 255, 0.3);
    text-underline-offset: 3px;
    transition: color 200ms, text-decoration-color 200ms;
}

.page p a:hover {
    color: #3399FF;
    text-decoration-color: rgba(51, 153, 255, 0.5);
}

.page strong { color: #F5F7FA; font-weight: 600; }

/* ── Footer ── */
footer {
    border-top: 1px solid #243245;
    padding: 24px 0 48px;
    font-size: 0.85rem;
    color: #9AA8BC;
}

/* ── Responsive ── */
@media (max-width: 600px) {
    .intro {
        flex-direction: column;
        text-align: center;
        gap: 24px;
        padding: 36px 0 20px;
    }

    .profile-img { width: 140px; height: 140px; }
    .buttons { justify-content: center; }
    .intro-text h1 { font-size: 1.6rem; }
}

@media (max-width: 400px) {
    .container { padding: 0 16px; }
    .profile-img { width: 120px; height: 120px; }
}