:root{--bg-canvas: #f6f8fa;--surface-pure: #ffffff;--border-clean: #e1e5ea;--primary-accent: #2563eb;--text-dark: #0f172a;--text-subtle: #64748b;--ad-light-bg: #e2e8f0}*{margin:0;padding:0;box-sizing:border-box;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background-color:var(--bg-canvas);color:var(--text-dark);min-height:100vh;display:flex;flex-direction:column}.main-header{background-color:var(--surface-pure);border-bottom:1px solid var(--border-clean);padding:1rem 1.5rem;position:sticky;top:0;z-index:1000}.header-wrap{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;width:100%}.logo{font-size:1.5rem;font-weight:800;letter-spacing:-.5px;text-decoration:none;color:var(--text-dark);z-index:1001}.logo span{color:var(--primary-accent)}.header-right-group{display:flex;align-items:center;gap:1rem;z-index:1001}.menu-toggle{display:flex;flex-direction:column;justify-content:space-between;background:none;border:none;width:28px;height:18px;cursor:pointer}.menu-toggle span{display:block;width:100%;height:2px;background-color:var(--text-dark);border-radius:2px;transition:all .25s ease-in-out}.menu-toggle.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}.menu-toggle.active span:nth-child(2){opacity:0;transform:translate(-10px)}.menu-toggle.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.nav-container{display:none;position:fixed;top:0;left:0;width:100%;height:100vh;background-color:var(--surface-pure);padding:6rem 2rem 2rem;flex-direction:column;gap:2rem;align-items:center;z-index:1000}.nav-container.active{display:flex}.nav-links{display:flex;flex-direction:column;gap:1.5rem;list-style:none;text-align:center;width:100%}.nav-links a{color:var(--text-subtle);text-decoration:none;font-size:1.1rem;font-weight:600}.nav-links a.active{color:var(--primary-accent)}.auth-buttons{display:flex;flex-direction:column;align-items:center;gap:1.2rem;width:100%;margin-top:1rem;border-top:1px solid var(--border-clean);padding-top:1.5rem}.btn-login{color:var(--text-dark);text-decoration:none;font-size:1rem;font-weight:600}.btn-register{background-color:var(--primary-accent);color:var(--surface-pure);text-decoration:none;font-size:1rem;font-weight:600;padding:.7rem 2rem;border-radius:6px;text-align:center;width:100%;max-width:240px}.lang-selector-wrapper{display:flex;align-items:center}.lang-select{padding:.3rem .5rem;font-size:.85rem;font-weight:700;color:var(--primary-accent);background:transparent;border:1px solid var(--border-clean);border-radius:4px;outline:none;cursor:pointer}.lang-select option{color:var(--text-dark);background-color:var(--surface-pure)}.lang-select:focus{border-color:var(--primary-accent)}@media(min-width:992px){.main-header{padding:1.2rem 2.5rem}.menu-toggle,.header-right-group{display:none}.nav-container{display:flex!important;position:static;height:auto;width:100%;padding:0;flex-direction:row;justify-content:space-between;margin-left:3rem}.nav-links{flex-direction:row;gap:2.5rem;width:auto;margin:0 auto}.nav-links a{font-size:.95rem}.auth-buttons{flex-direction:row;gap:1.5rem;width:auto;margin-top:0;border-top:none;padding-top:0}.btn-login{font-size:.9rem}.btn-register{font-size:.9rem;padding:.5rem 1.2rem;border-radius:4px;width:auto}.auth-buttons .lang-selector-wrapper{display:flex;order:-1}.lang-select{font-size:.9rem;border:none;padding:.4rem .5rem}}.app-wrapper{max-width:1400px;margin:1rem auto;padding:0 1rem;width:100%;flex:1}@media(min-width:1200px){.app-wrapper{margin:2rem auto;padding:0 1.5rem;display:grid;grid-template-columns:160px 1fr 160px;gap:2rem}}.center-deck{display:flex;flex-direction:column;gap:1.5rem}@media(min-width:768px){.center-deck{gap:2.5rem}}.ad-rail{display:none;background-color:var(--surface-pure);border:1px solid var(--border-clean);border-radius:8px;padding:1rem;text-align:center;position:sticky;top:6rem;height:600px}@media(min-width:1200px){.ad-rail{display:flex;flex-direction:column;justify-content:center;align-items:center}}.ad-meta{font-size:.7rem;color:var(--text-subtle);letter-spacing:1px;text-transform:uppercase;margin-bottom:.5rem}.ad-slot-box{width:100%;height:100%;background-color:var(--ad-light-bg);border-radius:4px;display:flex;align-items:center;justify-content:center;color:var(--text-subtle);font-size:.85rem}.main-footer{background-color:var(--surface-pure);border-top:1px solid var(--border-clean);padding:2.5rem 1rem;margin-top:auto;text-align:center}.footer-nav{margin-bottom:1.2rem;display:flex;flex-wrap:wrap;justify-content:center;gap:1rem 2rem}.footer-nav a{color:var(--text-subtle);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s}.footer-nav a:hover{color:var(--primary-accent)}.footer-copy{font-size:.85rem;color:var(--text-subtle)}