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span{font-size:12px;color:var(--text-muted);line-height:1.5}.alert__quota-cta{display:inline-flex;align-items:center;gap:7px;align-self:flex-start;margin-top:6px;font-size:12px;font-weight:600;color:#fff;text-decoration:none;padding:7px 16px;border-radius:8px;background:linear-gradient(135deg,#818cf8 0%,#5b5ef4 100%);border:1px solid rgba(129,140,248,0.4);box-shadow:0 1px 10px rgba(91,94,244,0.25);transition:opacity var(--transition),transform var(--transition)}.alert__quota-cta:hover{opacity:.9;transform:translateY(-1px)}.app-header__actions{display:flex;align-items:center;gap:6px;margin-left:auto;padding-left:16px;border-left:1px solid var(--border)}.app-header__btn-login{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:500;color:var(--text);text-decoration:none;padding:7px 15px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);transition:color var(--transition),background var(--transition),border-color 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var(--transition);white-space:nowrap;letter-spacing:-0.1px;position:relative;overflow:hidden}.app-header__btn-register::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.09) 0%,transparent 55%);pointer-events:none}.app-header__btn-register:hover{background:linear-gradient(135deg,#929af9 0%,#6e70f5 100%);box-shadow:0 2px 20px rgba(91,94,244,0.44),inset 0 1px 0 rgba(255,255,255,0.18);transform:translateY(-1px)}.app-header__btn-register:active{transform:translateY(0);box-shadow:0 1px 6px rgba(91,94,244,0.2)}.app-header__btn-register svg{opacity:.88;flex-shrink:0}.app-header__user-chip{display:inline-flex;align-items:center;gap:8px;padding:5px 12px 5px 6px;border-radius:20px;background:var(--surface);border:1px solid var(--border);text-decoration:none;transition:background var(--transition),border-color var(--transition)}.app-header__user-chip:hover{background:var(--surface-high);border-color:rgba(129,140,248,.35)}.app-header__user-avatar{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#818cf8,#6366f1);color:#fff;font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;letter-spacing:0}.app-header__user-name{font-size:13px;font-weight:500;color:var(--text);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-header__btn-logout{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:500;color:var(--text-muted);text-decoration:none;padding:7px 10px;border-radius:var(--radius);border:1px solid transparent;background:transparent;transition:color var(--transition),background var(--transition),border-color var(--transition);white-space:nowrap}.app-header__btn-logout:hover{color:var(--error);background:rgba(248,113,113,.07);border-color:rgba(248,113,113,.2)}.app-header__nav-link{font-size:13px;font-weight:500;color:var(--text-muted);text-decoration:none;padding:7px 12px;border-radius:var(--radius);border:1px solid transparent;transition:color var(--transition),background var(--transition),border-color var(--transition);white-space:nowrap}.app-header__nav-link:hover{color:var(--text);background:var(--surface-high);border-color:var(--border)}.app-header__cta--ghost{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--text-muted);text-decoration:none;padding:7px 14px;border-radius:var(--radius);border:1px solid var(--border);background:transparent;transition:color var(--transition),background var(--transition),border-color var(--transition);white-space:nowrap}.app-header__cta--ghost:hover{color:var(--text);background:var(--surface-high);border-color:rgba(129,140,248,.3)}@media (max-width:640px){.app-header__user-name{display:none}.app-header__btn-register span,.app-header__btn-login span,.app-header__nav-link span,.app-header__btn-logout span{display:none}.app-header__btn-register,.app-header__btn-login,.app-header__nav-link,.app-header__btn-logout{padding:7px 10px}.app-header__actions{padding-left:10px;gap:4px}}@media (max-width:480px){.app-header__actions{padding-left:6px;gap:2px}}.app-header__lang{display:flex;align-items:center;padding:0 10px;border-right:1px solid var(--border)}.lang-switcher{position:relative}.lang-switcher__btn{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:var(--radius);border:1px solid var(--border);background:transparent;color:var(--text);cursor:pointer;font-size:12px;font-weight:600;letter-spacing:.3px;transition:background var(--transition),border-color var(--transition);white-space:nowrap}.lang-switcher__btn:hover{background:var(--surface-high);border-color:rgba(129,140,248,.35)}.lang-switcher__flag{font-size:16px;line-height:1;display:inline-block}.lang-switcher__code{font-size:11px;font-weight:700;color:var(--text-muted);letter-spacing:.5px}.lang-switcher__caret{opacity:.5;flex-shrink:0;transition:transform .15s ease}.lang-switcher__btn[aria-expanded="true"] .lang-switcher__caret{transform:rotate(180deg)}.lang-switcher__menu{position:absolute;top:calc(100% + 6px);right:0;min-width:190px;max-width:calc(100vw - 20px);max-height:min(340px,60vh);overflow-y:auto;overscroll-behavior:contain;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:0 12px 32px rgba(0,0,0,.25),0 2px 8px rgba(0,0,0,.15);list-style:none;margin:0;padding:4px;z-index:300}[dir="rtl"] .lang-switcher__menu{right:auto;left:0}.lang-switcher__menu::-webkit-scrollbar{width:4px}.lang-switcher__menu::-webkit-scrollbar-track{background:transparent}.lang-switcher__menu::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.lang-switcher__option{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:7px;text-decoration:none;color:var(--text);font-size:13px;transition:background var(--transition)}.lang-switcher__option:hover{background:var(--surface-high)}.lang-switcher__option--active{font-weight:700;color:var(--accent);background:rgba(129,140,248,.08)}.lang-switcher__name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lang-switcher--standalone{position:fixed;top:14px;right:16px;z-index:200}[dir="rtl"] .lang-switcher--standalone{right:auto;left:16px}[dir="rtl"] .lang-switcher--standalone .lang-switcher__menu{right:auto;left:0}@media (max-width:640px){.app-header__lang{padding:0 6px}.lang-switcher__btn{padding:4px 7px}.lang-switcher__code{display:none}.lang-switcher--standalone{top:10px;right:10px}.lang-switcher__option{padding:10px}.lang-switcher__menu{min-width:170px}}@media (max-width:480px){.app-header__lang{padding:0 4px}}.demo-video-section{background:var(--bg)}.demo-video-wrap{margin:40px auto 0;border-radius:12px;overflow:hidden;border:1px solid var(--border);box-shadow:0 8px 40px rgba(0,0,0,0.5);background:#000;width:100%;max-width:900px}.demo-video{width:100%;height:auto;display:block}@media (max-width:768px){.demo-video-wrap{border-radius:10px;margin-top:28px}}@media (max-width:480px){.demo-video-wrap{border-radius:var(--radius);margin-top:20px;box-shadow:0 4px 20px rgba(0,0,0,0.4)}}