:root { --bg: #ffffff; --text: #1a1a1a; --text-muted: #555555; --border: #e5e5e5; --accent: #1a1a1a; --link: #0066cc; --container-width: 760px; } * { box-sizing: border-box; margin: 0; padding: 0; } html { font-size: 16px; -webkit-text-size-adjust: 100%; } body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: var(--text); background: var(--bg); line-height: 1.65; font-size: 1rem; padding: 0; } .container { max-width: var(--container-width); margin: 0 auto; padding: 2rem 1.5rem 4rem; } header { border-bottom: 1px solid var(--border); padding: 1rem 1.5rem; max-width: var(--container-width); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; } header .brand { font-weight: 600; font-size: 1.1rem; color: var(--text); text-decoration: none; letter-spacing: -0.01em; } .lang-switcher { display: flex; gap: 0.25rem; font-size: 0.85rem; } .lang-switcher button { background: none; border: 1px solid var(--border); color: var(--text-muted); padding: 0.25rem 0.6rem; cursor: pointer; font: inherit; font-size: 0.85rem; border-radius: 3px; transition: all 0.15s; } .lang-switcher button.active { background: var(--text); color: var(--bg); border-color: var(--text); } .lang-switcher button:hover:not(.active) { border-color: var(--text-muted); } h1 { font-size: 1.75rem; font-weight: 600; margin-bottom: 0.5rem; letter-spacing: -0.02em; } h2 { font-size: 1.2rem; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; letter-spacing: -0.01em; } h3 { font-size: 1rem; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.5rem; } p { margin-bottom: 1rem; } ul, ol { margin-bottom: 1rem; padding-left: 1.5rem; } li { margin-bottom: 0.4rem; } a { color: var(--link); text-decoration: underline; } a:hover { text-decoration: none; } .meta { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); } .meta strong { color: var(--text); } footer { border-top: 1px solid var(--border); padding: 1.5rem; max-width: var(--container-width); margin: 0 auto; color: var(--text-muted); font-size: 0.85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; } footer nav { display: flex; gap: 1rem; flex-wrap: wrap; } footer a { color: var(--text-muted); } /* ============================================ LANGUAGE SWITCHING Based on attribute. Works even without JS (progressive enhancement). ============================================ */ /* Turkish content hidden by default (HTML is en) */ .lang-tr, .lang-tr-inline { display: none; } /* When HTML is Turkish, flip visibility */ html[lang="tr"] .lang-en, html[lang="tr"] .lang-en-inline { display: none; } html[lang="tr"] .lang-tr { display: block; } html[lang="tr"] .lang-tr-inline { display: inline; } html[lang="tr"] ul.lang-tr, html[lang="tr"] ol.lang-tr { display: block; } html[lang="tr"] li.lang-tr { display: list-item; } /* Utility */ .contact-box { background: #fafafa; border: 1px solid var(--border); border-radius: 4px; padding: 1rem 1.25rem; margin: 1.5rem 0; font-size: 0.95rem; } .contact-box p { margin-bottom: 0.25rem; } .contact-box p:last-child { margin-bottom: 0; } @media (max-width: 600px) { .container { padding: 1.5rem 1rem 3rem; } header { padding: 0.75rem 1rem; } h1 { font-size: 1.4rem; } h2 { font-size: 1.1rem; } }