@keyframes toastSlideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes toastSlideOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(20px)}}@keyframes toolResultIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(1turn)}}@keyframes wizardFadeIn{0%{opacity:0;transform:translateX(10px)}to{opacity:1;transform:translateX(0)}}.flexboxPage{background:var(--color-bg-secondary,#f8fafc);color:var(--color-text-primary,#0f172a);min-height:100vh;padding:32px 5% 48px;transition:background .3s ease,color .3s ease}.flexboxMainContent{margin:0 auto;max-width:1000px}.flexbox__main{display:grid;gap:24px;grid-template-columns:1fr 1fr;margin-bottom:24px}@media(max-width:768px){.flexbox__main{grid-template-columns:1fr}}.flexbox__preview{align-items:stretch;background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;display:flex;margin-bottom:24px;min-height:300px;padding:24px}.flexbox__container{background:rgba(0,0,0,.2);flex:1;min-height:250px}.flexbox__container,.flexbox__item{border-radius:8px;display:flex;padding:16px}.flexbox__item{align-items:center;background:linear-gradient(135deg,#06b6d4,#0891b2);color:#fff;font-size:1.8rem;font-weight:700;justify-content:center;min-height:50px;min-width:50px}.flexbox__item:nth-child(2n){background:linear-gradient(135deg,#0891b2,#0e7490);min-height:70px}.flexbox__item:nth-child(3n){min-height:40px}.flexbox__controls{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;padding:24px}.flexbox__controls h2{border-bottom:1px solid var(--color-border,#e2e8f0);color:var(--color-text-primary,#0f172a);font-size:2rem;font-weight:600;margin:0 0 16px;padding-bottom:8px}.flexbox__controlGroup{margin-bottom:16px}.flexbox__controlGroup>label{color:var(--color-text-secondary,#475569);display:block;font-size:1.5rem;font-weight:500;margin-bottom:4px}.flexbox__btnGroup{display:flex;flex-wrap:wrap;gap:4px}.flexbox__optionBtn{background:rgba(0,0,0,.2);border:1px solid #e2e8f0;border-radius:8px;color:#475569;cursor:pointer;font-size:1.4rem;padding:6px 12px;transition:all .15s cubic-bezier(.22,1,.36,1)}.flexbox__optionBtn:hover,.flexbox__optionBtn_active{border-color:#06b6d4;color:#06b6d4}.flexbox__optionBtn_active{background:rgba(6,182,212,.2)}.flexbox__sliderRow{align-items:center;display:flex;gap:16px}.flexbox__sliderRow input[type=range]{background:#e2e8f0;border-radius:3px;flex:1;height:6px}.flexbox__sliderRow span{color:#06b6d4;font-family:monospace;min-width:50px}.flexbox__output{background:var(--color-bg-card,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:16px;margin-bottom:24px;padding:24px}.flexbox__output h2{border-bottom:1px solid var(--color-border,#e2e8f0);color:var(--color-text-primary,#0f172a);font-size:2rem;font-weight:600;margin:0 0 16px;padding-bottom:8px}.flexbox__code{background:rgba(0,0,0,.3);border-radius:8px;margin-bottom:24px;padding:16px}.flexbox__code pre{color:#0f172a;font-family:monospace;font-size:1.4rem;margin:0;white-space:pre-wrap}.flexbox__actions{display:flex;gap:16px}.flexbox__actionBtn{align-items:center;background:transparent;border:1px solid var(--color-border,#e2e8f0);border-radius:8px;color:var(--color-text-primary,#0f172a);cursor:pointer;display:inline-flex;font-size:1.6rem;font-weight:600;gap:8px;justify-content:center;min-height:48px;padding:14px 28px;text-decoration:none;transition:border-color .15s cubic-bezier(.22,1,.36,1),color .15s cubic-bezier(.22,1,.36,1),background .15s cubic-bezier(.22,1,.36,1)}.flexbox__actionBtn:hover{background:rgba(37,99,235,.08);border-color:#2563eb;color:#2563eb}.flexbox__actionBtn:active{background:rgba(37,99,235,.12)}.flexbox__actionBtn:focus-visible{outline:2px solid #2563eb;outline-offset:2px}.flexbox__actionBtn:disabled{cursor:not-allowed;opacity:.5}.flexboxToast{animation:toastSlideIn .3s ease forwards;background:#22c55e;border-radius:12px;bottom:24px;box-shadow:0 4px 12px rgba(0,0,0,.08);color:#fff;display:none;font-weight:500;padding:14px 24px;position:fixed;right:24px;z-index:1000}@media(max-width:640px){.flexboxToast{bottom:16px;left:16px;right:16px;text-align:center}}.flexboxToast_success{background:#22c55e;color:#fff;display:block}.flexboxToast_success:before{content:"✓ "}.flexboxToast_error{background:#ef4444;color:#fff;display:block}.flexboxToast_error:before{content:"✕ "}.flexboxToast_info{background:#2563eb;color:#fff;display:block}.flexboxToast_info:before{content:"ⓘ "}.flexboxToast_warning{background:#eab308;color:#fff;display:block}.flexboxToast_warning:before{content:"⚠ "}