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

html {
    scroll-behavior: smooth;
}

body {
    background: white;
    font-family: 'Rubik', system-ui, sans-serif;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
}

.content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}

h1 {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 3.2rem;
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: #0a0a0a;
    max-width: 1100px;
    text-align: center;
}

h1 span {
    display: inline-block;
}

.cursor {
    display: inline-block;
    width: 4px;
    height: 0.9em;
    margin-left: 8px;
    background: #0a0a0a;
    border-radius: 2px;
    transform: translateY(0.1em);
    animation: blink 1.05s step-end infinite;
}

/* Solid (no blink) while actively typing or deleting. */
.cursor.typing {
    animation: none;
    opacity: 1;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.tagline {
    font-size: 1.4rem;
    font-weight: 500;
    color: #333;
    margin-top: 4px;
}

.subheader {
    font-size: 1.45rem;
    font-weight: 300;
    color: #888;
    line-height: 1.6;
    max-width: 640px;
    text-align: center;
}

kbd {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.95em;
    font-family: 'Inter', system-ui, sans-serif;
    font-weight: 500;
    color: #333;
    background: #f5f5f5;
    border: 1px solid #c4c4c4;
    border-bottom-width: 3px;
    border-radius: 5px;
    box-shadow: 0 1px 0 rgba(0,0,0,0.08);
    line-height: 1.4;
    white-space: nowrap;
}

.how-link {
    font-size: 1.05rem;
    font-weight: 400;
    color: #555;
    text-decoration: underline;
    text-underline-offset: 3px;
    cursor: pointer;
    transition: color 0.15s;
}

.how-link:hover {
    color: #0a0a0a;
}

.github-btn {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    background: white;
    color: #0a0a0a;
    border: 2px solid #0a0a0a;
    border-radius: 0;
    padding: 20px 36px;
    font-family: 'Rubik', system-ui, sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    margin-top: 6px;
    transition: background 0.15s, color 0.15s;
}

.github-btn svg {
    fill: #0a0a0a;
    transition: fill 0.15s;
}

.github-btn:hover {
    background: #0a0a0a;
    color: white;
}

.github-btn:hover svg {
    fill: white;
}