/* Home page (templates/home.html). Colors come from topbar.css. */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding-top: var(--topbar-height);
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font);
    line-height: 1.5;
}

main {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

/* --- Hero --- */

.hero {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: center;
    padding: 72px 0 56px;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background-color: var(--surface);
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

.hero h1 {
    margin: 16px 0;
    font-size: clamp(32px, 4.5vw, 48px);
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-wrap: balance;
}

.hero-subtitle {
    margin: 0 0 28px;
    max-width: 46ch;
    color: var(--muted);
    font-size: 18px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
}

.btn {
    display: inline-block;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
}

.btn-primary {
    padding: 13px 24px;
    background-color: var(--brand);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--brand-dark);
}

.btn-link {
    color: var(--text);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.btn-link:hover {
    color: var(--muted);
}

/* --- Typing demo --- */

.demo {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background-color: var(--surface);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
}

.demo-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.demo h2 {
    margin: 0;
    font-size: 20px;
}

.btn-restart {
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: transparent;
    color: var(--text);
    font: inherit;
    font-size: 14px;
    cursor: pointer;
}

.btn-restart:hover {
    border-color: #a1a1aa;
}

.demo-hint {
    margin: 6px 0 18px;
    color: var(--muted);
    font-size: 14px;
}

.demo-text {
    margin: 0 0 16px;
    padding: 18px;
    border-radius: 10px;
    background-color: var(--bg);
    font-family: var(--mono);
    font-size: 20px;
    line-height: 1.7;
    color: var(--muted);
    overflow-wrap: anywhere;
}

.demo-text span.correct {
    color: var(--ok);
}

.demo-text span.wrong {
    background-color: var(--error-soft);
    color: var(--error);
    border-radius: 2px;
}

.demo-text span.current {
    border-bottom: 2px solid var(--brand);
    color: var(--text);
}

.demo-input {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: var(--mono);
    font-size: 17px;
    color: var(--text);
}

.demo-input:focus {
    outline: none;
    border-color: var(--text);
}

.demo-input:disabled {
    background-color: var(--bg);
}

.demo-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 18px 0 0;
}

.demo-stats div {
    padding: 12px;
    border-radius: 10px;
    background-color: var(--bg);
    text-align: center;
}

.demo-stats dt {
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.demo-stats dd {
    margin: 2px 0 0;
    font-size: 24px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.demo-result {
    margin-top: 16px;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid #bbf7d0;
    background-color: var(--ok-soft);
    color: var(--ok);
}

.demo-result a {
    margin-left: 6px;
    color: var(--ok);
    font-weight: 600;
}

/* --- Features --- */

.features {
    padding: 24px 0 72px;
}

.features h2 {
    margin: 0 0 24px;
    font-size: 28px;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature {
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background-color: var(--surface);
}

.feature-icon {
    font-size: 28px;
}

.feature h3 {
    margin: 10px 0 6px;
    font-size: 18px;
}

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

.footer {
    padding: 24px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 14px;
    text-align: center;
}

.footer p {
    margin: 0;
}

/* --- Small screens --- */

@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 40px 0;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    main {
        padding: 0 16px;
    }

    .demo {
        padding: 18px;
    }

    .demo-text {
        font-size: 17px;
    }

    .demo-stats dd {
        font-size: 20px;
    }
}