:root {
    --primary: #6366f1;
    --text: #1f2937;
    --light: #f9fafb;
    --gray: #6b7280;
    --border: #e5e7eb;
    --bg-white: #ffffff;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.7;
    color: var(--text);
    background: var(--light);
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px 40px 20px;
}

.lang-jump {
    background-color: var(--primary);
    color: white;
    text-align: center;
    padding: 12px;
    position: sticky;
    top: 0;
    z-index: 100;
    margin: 0 -20px 40px -20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    font-weight: 500;
}

.lang-jump a {
    color: white;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.lang-jump a:hover {
    text-decoration: underline;
}

header {
    text-align: center;
    margin-bottom: 48px;
    padding-top: 20px;
}

h1 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.subtitle {
    color: var(--gray);
    font-size: 1.1rem;
}

.last-update {
    color: var(--gray);
    font-size: 0.95rem;
    margin-top: 8px;
}

section {
    margin-bottom: 48px;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #374151;
    margin: 32px 0 16px;
    border-left: 4px solid var(--primary);
    padding-left: 12px;
}

h3 {
    font-size: 1.25rem;
    margin: 24px 0 12px;
    color: #4b5563;
}

p, li {
    margin-bottom: 1.1em;
    font-size: 1.05rem;
}

ul, ol {
    margin-left: 1.8em;
    margin-bottom: 1.2em;
}

strong {
    color: #111827;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.contact, .deletion-box {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-top: 32px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.deletion-box {
    border-left: 4px solid #ef4444;
}

.language-divider {
    margin: 80px 0;
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0));
}

footer {
    text-align: center;
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    color: var(--gray);
    font-size: 0.95rem;
}

@media (max-width: 600px) {
    body { padding: 0 16px 24px 16px; }
    h1 { font-size: 1.9rem; }
    .lang-jump { margin: 0 -16px 30px -16px; }
}