:root{--bg-body: #050505;--bg-panel: rgba(15, 23, 42, .65);--border-panel: rgba(56, 189, 248, .2);--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--accent-primary: #38bdf8;--accent-primary-dim: rgba(56, 189, 248, .1);--accent-secondary: #818cf8;--input-bg: rgba(2, 6, 23, .6);--font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Segoe UI", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-body);color:var(--text-primary);font-family:var(--font-sans);min-height:100vh;display:flex;align-items:center;justify-content:center;overflow-x:hidden;padding:20px;line-height:1.5;position:relative}#starfield{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;background:radial-gradient(circle at center,#0f172a,#000)}.container{width:100%;max-width:1000px;background:var(--bg-panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-panel);border-radius:24px;padding:48px;box-shadow:0 20px 50px -12px #000c,0 0 0 1px #ffffff0d;position:relative;z-index:1}.header-row{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:40px;border-bottom:1px solid var(--border-panel);padding-bottom:24px}.title-block{flex:1;margin-right:40px}h1{font-family:var(--font-sans);font-weight:700;font-size:2rem;letter-spacing:-.02em;background:linear-gradient(to right,#fff,#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.subtitle{font-size:.95rem;line-height:1.6;color:var(--text-secondary);max-width:650px}.lang-switch{position:absolute;top:48px;right:calc((100vw - min(1000px,100vw - 40px))/2 + 48px);display:flex;gap:4px;background:#0006;padding:4px;border-radius:8px;border:1px solid var(--border-panel);z-index:10}@media(max-width:1350px){.lang-switch{position:static;order:-2;margin-bottom:24px;align-self:flex-start;width:100%;max-width:1000px;display:flex;justify-content:center;margin-left:auto;margin-right:auto}}.lang-btn{background:transparent;border:none;color:var(--text-muted);padding:6px 12px;font-family:var(--font-sans);font-weight:500;font-size:.85rem;cursor:pointer;transition:all .2s ease;border-radius:6px}.lang-btn:hover{color:var(--text-primary)}.lang-btn--active{background:#38bdf826;color:var(--accent-primary);font-weight:600}.lang-separator{display:none}.header-row{display:flex;justify-content:flex-start;align-items:flex-start;margin-bottom:40px;border-bottom:1px solid var(--border-panel);padding-bottom:24px}.layout{display:grid;grid-template-columns:1.1fr 1fr;gap:48px}.chart-section{background:#0000004d;border:1px solid var(--border-panel);border-radius:16px;padding:24px}.chart-title{font-family:var(--font-sans);font-weight:600;color:var(--text-primary);margin-bottom:20px;font-size:1rem;display:flex;align-items:center;gap:8px}canvas#timeChart{width:100%;height:auto;border-radius:8px}.chart-description{margin-top:16px;font-size:.85rem;color:var(--text-secondary);line-height:1.5}.controls-section{display:flex;flex-direction:column;gap:24px}.description{color:var(--text-secondary);font-size:.95rem;line-height:1.6}.inputs-row{display:flex;flex-direction:column;gap:24px}.input-group{position:relative}label{display:block;font-family:var(--font-sans);font-weight:500;font-size:.85rem;color:var(--accent-primary);margin-bottom:8px;text-transform:uppercase;letter-spacing:.05em}input[type=number]{width:100%;background:var(--input-bg);border:1px solid var(--border-panel);color:var(--text-primary);padding:14px 16px;font-family:var(--font-mono);font-size:1.1rem;border-radius:12px;transition:all .2s ease}input[type=number]:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-primary-dim);background:#020617cc}.input-hint{font-size:.8rem;color:var(--text-muted);margin-top:8px;line-height:1.4}.note{font-size:.85rem;background:#38bdf80d;border-left:3px solid var(--accent-primary);border-radius:4px;padding:16px;color:var(--text-secondary);line-height:1.6}.result{margin-top:40px;background:linear-gradient(to right,rgba(56,189,248,.05),transparent);border:1px solid var(--border-panel);padding:32px;border-radius:16px}.result-line{font-family:var(--font-sans);margin-bottom:12px;font-size:1rem;line-height:1.6;color:var(--text-primary)}.result-line:last-child{margin-bottom:0}.highlight{color:var(--accent-primary);font-weight:600;text-shadow:0 0 15px rgba(56,189,248,.3)}.presets-sidebar{position:fixed;right:calc((100vw - min(1000px,100vw - 40px))/2 - 290px);top:50%;transform:translateY(-50%);width:260px;background:#0f172acc;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-panel);border-radius:16px;padding:24px;box-shadow:0 10px 40px -10px #00000080;z-index:50}.presets-sidebar .presets-title{font-family:var(--font-sans);font-weight:600;font-size:.85rem;color:var(--text-secondary);margin-bottom:16px;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border-panel);padding-bottom:12px}.presets-sidebar .presets-list{display:flex;flex-direction:column;gap:10px}.preset-btn{background:#ffffff05;border:1px solid transparent;color:var(--text-secondary);padding:12px;font-size:.85rem;line-height:1.4;cursor:pointer;transition:all .2s;text-align:left;border-radius:8px}.preset-btn:hover{background:#38bdf81a;border-color:var(--accent-primary-dim);color:var(--text-primary);transform:translate(4px)}.seo-text{margin-top:60px;border-top:1px solid var(--border-panel);padding-top:32px;color:var(--text-muted);font-size:.85rem;line-height:1.7}.seo-text h2{color:var(--text-primary);font-size:1rem;margin-bottom:16px;font-weight:600}@media(max-width:1350px){body{flex-direction:column;justify-content:flex-start;padding-top:40px;padding-bottom:40px;height:auto}.presets-sidebar{display:block;position:static;transform:none;width:100%;max-width:1000px;margin-top:0;margin-bottom:24px;order:-1;background:#0f172a99;right:auto;top:auto;border:1px solid var(--border-panel)}.presets-sidebar .presets-title{border-bottom:none;margin-bottom:16px}.presets-sidebar .presets-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}.preset-btn{height:100%;display:flex;align-items:center;background:#ffffff08}.preset-btn:hover{transform:translateY(-2px)}}@media(max-width:850px){.layout{grid-template-columns:1fr}.chart-section{order:-1}.container{padding:32px 24px}.result{scroll-margin-top:20px}}@media(max-width:480px){h1{font-size:1.5rem}.header-row{flex-direction:column;gap:20px}.lang-switch{align-self:flex-start}}.nav-home{position:absolute;top:12px;left:12px;z-index:10}.home-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:#3b82f62e;border:1px solid rgba(147,197,253,.6);border-radius:999px;color:#e5edff;text-decoration:none;backdrop-filter:blur(8px);box-shadow:0 8px 24px #2563eb40;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.home-chip:hover{transform:translateY(-1px);border-color:#bfdbfe;box-shadow:0 12px 28px #2563eb59}.home-icon{font-size:.95rem}.home-text{font-weight:700;letter-spacing:.01em}a.lang-btn{display:inline-block;text-decoration:none;line-height:1.2}