:root,[data-theme=light]{--bg-primary: #f8fafc;--bg-surface: #ffffff;--bg-surface-subtle: #f1f5f9;--bg-surface-hover: #e2e8f0;--bg-glass: rgba(255, 255, 255, .82);--border-subtle: #e2e8f0;--border-default: #cbd5e1;--border-focus: #4f46e5;--border-glow: rgba(79, 70, 229, .25);--text-primary: #090d16;--text-secondary: #475569;--text-muted: #64748b;--text-inverse: #ffffff;--brand-primary: #4f46e5;--brand-primary-hover: #4338ca;--brand-primary-light: #eef2ff;--brand-secondary: #0891b2;--accent-cyan: #06b6d4;--accent-violet: #8b5cf6;--success: #10b981;--success-bg: #ecfdf5;--success-border: #a7f3d0;--warning: #f59e0b;--warning-bg: #fffbeb;--warning-border: #fde68a;--danger: #ef4444;--danger-bg: #fef2f2;--danger-border: #fecaca;--info: #0284c7;--info-bg: #f0f9ff;--info-border: #bae6fd;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px -2px rgba(0, 0, 0, .06), 0 2px 4px -2px rgba(0, 0, 0, .04);--shadow-lg: 0 12px 28px -4px rgba(0, 0, 0, .08), 0 4px 8px -4px rgba(0, 0, 0, .04);--shadow-glow: 0 0 24px -4px rgba(79, 70, 229, .2);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 22px;--radius-full: 9999px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--container-max-width: 1240px;--tool-max-width: 920px}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg-primary: #08090e;--bg-surface: #0f121d;--bg-surface-subtle: #161a29;--bg-surface-hover: #1e2337;--bg-glass: rgba(15, 18, 29, .8);--border-subtle: rgba(255, 255, 255, .07);--border-default: rgba(255, 255, 255, .12);--border-focus: #6366f1;--border-glow: rgba(99, 102, 241, .35);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--text-inverse: #090d16;--brand-primary: #6366f1;--brand-primary-hover: #818cf8;--brand-primary-light: rgba(99, 102, 241, .14);--brand-secondary: #06b6d4;--accent-cyan: #00f5d4;--accent-violet: #8b5cf6;--success: #10b981;--success-bg: rgba(16, 185, 129, .1);--success-border: rgba(16, 185, 129, .25);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .1);--danger-border: rgba(239, 68, 68, .25);--info: #38bdf8;--info-bg: rgba(56, 189, 248, .1);--info-border: rgba(56, 189, 248, .25);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .1);--warning-border: rgba(245, 158, 11, .25);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .4);--shadow-md: 0 6px 16px -2px rgba(0, 0, 0, .5), 0 2px 4px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 16px 36px -4px rgba(0, 0, 0, .6), 0 4px 10px -4px rgba(0, 0, 0, .4);--shadow-glow: 0 0 32px -4px rgba(99, 102, 241, .25)}}[data-theme=dark]{--bg-primary: #08090e;--bg-surface: #0f121d;--bg-surface-subtle: #161a29;--bg-surface-hover: #1e2337;--bg-glass: rgba(15, 18, 29, .8);--border-subtle: rgba(255, 255, 255, .07);--border-default: rgba(255, 255, 255, .12);--border-focus: #6366f1;--border-glow: rgba(99, 102, 241, .35);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--text-inverse: #090d16;--brand-primary: #6366f1;--brand-primary-hover: #818cf8;--brand-primary-light: rgba(99, 102, 241, .14);--brand-secondary: #06b6d4;--accent-cyan: #00f5d4;--accent-violet: #8b5cf6;--success: #10b981;--success-bg: rgba(16, 185, 129, .1);--success-border: rgba(16, 185, 129, .25);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .1);--danger-border: rgba(239, 68, 68, .25);--info: #38bdf8;--info-bg: rgba(56, 189, 248, .1);--info-border: rgba(56, 189, 248, .25);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .1);--warning-border: rgba(245, 158, 11, .25);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .4);--shadow-md: 0 6px 16px -2px rgba(0, 0, 0, .5), 0 2px 4px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 16px 36px -4px rgba(0, 0, 0, .6), 0 4px 10px -4px rgba(0, 0, 0, .4);--shadow-glow: 0 0 32px -4px rgba(99, 102, 241, .25)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:-.012em;background-image:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(99,102,241,.08),transparent 70%),radial-gradient(ellipse 40% 30% at 90% 20%,rgba(6,182,212,.04),transparent 60%);background-repeat:no-repeat}a{color:var(--brand-primary);text-decoration:none;transition:color .15s ease,opacity .15s ease}a:hover{color:var(--brand-primary-hover)}:focus-visible{outline:2px solid var(--border-focus);outline-offset:3px}.site-container{width:100%;max-width:var(--container-max-width);margin-left:auto;margin-right:auto;padding-left:1.5rem;padding-right:1.5rem}.tool-container{width:100%;max-width:var(--tool-max-width);margin-left:auto;margin-right:auto;padding-left:1.25rem;padding-right:1.25rem}.card{background-color:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:1.75rem;box-shadow:var(--shadow-sm);transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;position:relative;overflow:hidden}.card:hover{border-color:var(--border-default);box-shadow:var(--shadow-md)}.card-interactive:hover{border-color:var(--border-glow);box-shadow:var(--shadow-lg),0 0 0 1px var(--border-glow);transform:translateY(-2px)}.text-gradient{background:linear-gradient(135deg,var(--text-primary) 30%,var(--text-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.text-gradient-brand{background:linear-gradient(135deg,#00f5d4,#6366f1,#d946ef);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.badge{display:inline-flex;align-items:center;gap:.4rem;padding:.3rem .75rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;line-height:1;letter-spacing:.03em;backdrop-filter:blur(8px)}.badge-primary{background-color:var(--brand-primary-light);color:var(--brand-primary);border:1px solid var(--border-glow)}.badge-success{background-color:var(--success-bg);color:var(--success);border:1px solid var(--success-border)}.badge-warning{background-color:var(--warning-bg);color:var(--warning);border:1px solid var(--warning-border)}.badge-info{background-color:var(--info-bg);color:var(--info);border:1px solid var(--info-border)}.form-group{display:flex;flex-direction:column;gap:.45rem;margin-bottom:1.25rem}.form-label{font-size:.875rem;font-weight:600;color:var(--text-primary);display:flex;align-items:center;justify-content:space-between}.form-hint{font-size:.78rem;color:var(--text-muted)}.form-input,.form-select,.form-textarea{width:100%;padding:.65rem .9rem;font-family:inherit;font-size:.9rem;line-height:1.5;color:var(--text-primary);background-color:var(--bg-surface-subtle);border:1px solid var(--border-default);border-radius:var(--radius-md);box-shadow:0 1px 2px #0000000a;transition:border-color .2s cubic-bezier(.16,1,.3,1),box-shadow .2s cubic-bezier(.16,1,.3,1),background-color .2s cubic-bezier(.16,1,.3,1)}.form-input::placeholder,.form-select::placeholder,.form-textarea::placeholder{color:var(--text-muted);opacity:.75}.form-input:hover,.form-select:hover,.form-textarea:hover{border-color:var(--text-muted);background-color:var(--bg-surface)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--brand-primary);background-color:var(--bg-surface);box-shadow:0 0 0 3px var(--brand-primary-light),0 0 16px var(--border-glow)}.form-input:disabled,.form-input[readonly],.form-select:disabled,.form-select[readonly],.form-textarea:disabled,.form-textarea[readonly]{opacity:.65;cursor:not-allowed;background-color:var(--bg-surface-subtle)}select,.form-select{appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .85rem center;background-size:1rem 1rem;padding-right:2.25rem;cursor:pointer}input[type=date],input[type=datetime-local]{color-scheme:dark light;cursor:pointer}.form-textarea,textarea{resize:vertical}.mono-editor{font-family:var(--font-mono);font-size:.875rem;line-height:1.6;tab-size:2;white-space:pre}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;padding:.7rem 1.4rem;font-family:inherit;font-size:.95rem;font-weight:600;line-height:1.2;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all .2s cubic-bezier(.16,1,.3,1);-webkit-user-select:none;user-select:none;min-height:44px}.btn-primary{background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;box-shadow:inset 0 1px #ffffff40,0 4px 14px #4f46e54d}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,#818cf8,#6366f1);box-shadow:inset 0 1px #ffffff59,0 6px 20px #6366f166;transform:translateY(-1px);text-decoration:none}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background-color:var(--bg-surface-subtle);color:var(--text-primary);border-color:var(--border-default)}.btn-secondary:hover:not(:disabled){background-color:var(--bg-surface-hover);border-color:var(--border-focus);transform:translateY(-1px);text-decoration:none}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid transparent}.btn-ghost:hover:not(:disabled){background:var(--bg-surface-subtle);color:var(--text-primary)}.btn-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:inset 0 1px #fff3,0 4px 14px #10b9814d}.btn-success:hover:not(:disabled){background:linear-gradient(135deg,#34d399,#10b981);transform:translateY(-1px);text-decoration:none}.btn-lg{padding:.9rem 1.9rem;font-size:1.05rem;border-radius:var(--radius-lg)}.btn-sm{padding:.4rem .85rem;font-size:.825rem;min-height:34px}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important}.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:1.5rem}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.25rem}@keyframes spin{to{transform:rotate(360deg)}}.animate-spin{animation:spin 1s linear infinite}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}