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

:root {
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --text-white: #ffffff;
    --text-light: #f5f5f5;
    --text-muted: #a0a0a0;
    --accent-purple: #9d4edd;
    --accent-purple-light: #c77dff;
    --accent-purple-dark: #7b2cbf;
    --border-color: #1a1a1a;
    --border-hover: #2a2a2a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    font-size: 16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

a {
    color: var(--accent-purple-light);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-purple);
    text-decoration: underline;
}

.site-header {
    background-color: var(--bg-darker);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 0;
}

.logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-white);
    letter-spacing: 0.02em;
}

.logo:hover {
    color: var(--accent-purple-light);
    text-decoration: none;
}

.tagline {
    margin-top: 0.25rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

main {
    flex: 1;
    padding: 2.5rem 0 3rem;
}

.hero {
    text-align: center;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.hero-lead {
    color: var(--text-muted);
    font-size: 1rem;
}

.randomizer-box {
    background-color: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.75rem;
    margin-bottom: 2.5rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.randomizer-box:focus-within {
    border-color: var(--border-hover);
    box-shadow: 0 0 24px rgba(157, 78, 221, 0.12);
}

.randomizer-row {
    margin-bottom: 1.25rem;
}

.randomizer-row label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

.randomizer-row input {
    width: 100%;
    max-width: 220px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    background-color: var(--bg-dark);
    border: 2px solid var(--accent-purple-dark);
    border-radius: 6px;
    color: var(--text-white);
}

.randomizer-row input:focus {
    outline: none;
    border-color: var(--accent-purple);
}

.randomizer-btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    background-color: var(--accent-purple);
    color: var(--text-white);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    font-weight: 600;
    margin-top: 0.25rem;
}

.randomizer-btn:hover {
    background-color: var(--accent-purple-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(157, 78, 221, 0.3);
}

.randomizer-btn:active {
    transform: translateY(0);
}

.randomizer-btn:disabled {
    opacity: 0.6;
    cursor: wait;
    transform: none;
}

#output {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    font-family: ui-monospace, 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.92rem;
    color: var(--text-light);
    white-space: pre-wrap;
    overflow-x: auto;
    min-height: 80px;
    margin-top: 1.25rem;
    line-height: 1.7;
}

#output:empty::before {
    content: 'Результат появится здесь после нажатия кнопки…';
    color: var(--text-muted);
}

#output a {
    color: var(--accent-purple-light);
}

.info-box {
    background-color: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
}

.info-box h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.info-box p {
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 0.98rem;
}

.info-footer {
    margin-bottom: 0 !important;
}

.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

@media (min-width: 768px) {
    .hero h1 {
        font-size: 2.1rem;
    }

    main {
        padding: 3rem 0 4rem;
    }

    .randomizer-box {
        padding: 2rem;
    }
}