:root{--navy: #0E1E45;--navy-700: #182a5c;--navy-500: #34457a;--navy-300: #7d8ab4;--magenta: #E2007E;--magenta-600: #c2006c;--magenta-050: #fdeaf4;--gold: #F2B544;--gold-soft: #f7d18a;--bg: #FCFAF7;--bg-alt: #ECEAEF;--card: #ffffff;--ink: #16213f;--ink-soft: #5c6580;--ink-faint: #97a0b6;--line: #e8e3ea;--line-strong: #d6cfdb;--ok: #1f7a55;--ok-bg: #e6f3ec;--warn: #b06a00;--warn-bg: #fbf0da;--bad: #c2006c;--bad-bg: #fde9f3;--shadow-sm: 0 1px 2px rgba(14,30,69,.05), 0 2px 8px rgba(14,30,69,.04);--shadow-md: 0 10px 30px rgba(14,30,69,.08), 0 2px 8px rgba(14,30,69,.05);--shadow-lg: 0 24px 60px rgba(14,30,69,.14);--serif: "Playfair Display", Georgia, serif;--sans: "Mulish", system-ui, -apple-system, sans-serif;--th-bg: #0E1E45;--radius: 4px;--radius-lg: 8px;--maxw: 1180px}.theme-dark{--navy: #0a1430;--navy-700: #0d1a3e;--navy-500: #2a3a6b;--navy-300: #8a96bf;--magenta: #ff3fa0;--magenta-600: #ff66b3;--magenta-050: #2a1430;--gold: #f6c463;--bg: #0a1430;--bg-alt: #0d1a3e;--card: #11204a;--ink: #eef1f9;--ink-soft: #aab4d4;--ink-faint: #6c7aa6;--line: #1f3066;--line-strong: #2a3a6b;--ok: #58d39b;--ok-bg:#0f2e22;--warn: #f6c463;--warn-bg:#2e2410;--bad: #ff6bae;--bad-bg:#33122a;--th-bg: #1c2f63;--shadow-sm: 0 1px 2px rgba(0,0,0,.3);--shadow-md: 0 12px 34px rgba(0,0,0,.45);--shadow-lg: 0 24px 60px rgba(0,0,0,.55)}.theme-lebreton{--navy: #5F6B4A;--navy-700: #47512F;--navy-500: #6E7A56;--navy-300: #A3AD8C;--magenta: #7A2331;--magenta-600: #611B27;--magenta-050: #F5E6E9;--gold: #8C4A1E;--gold-soft: #C98A5C;--bg: #FBF8F0;--bg-alt: #EDE6D3;--card: #FFFDF7;--ink: #2B2416;--ink-soft: #5F6B4A;--ink-faint: #8B8368;--line: #E4DCC5;--line-strong: #D3C7A3;--ok: #4A6B3D;--ok-bg: #E8EDDC;--warn: #9C6B22;--warn-bg: #F7EFD9;--bad: #7A2331;--bad-bg: #F5E1E4;--shadow-sm: 0 1px 2px rgba(43,36,22,.06), 0 2px 8px rgba(43,36,22,.05);--shadow-md: 0 10px 30px rgba(43,36,22,.1), 0 2px 8px rgba(43,36,22,.06);--shadow-lg: 0 24px 60px rgba(43,36,22,.16);--serif: "Fraunces", Georgia, serif;--sans: "Work Sans", system-ui, -apple-system, sans-serif;--mono: "IBM Plex Mono", "SF Mono", monospace;--th-bg: #47512F}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background .45s ease,color .45s ease}::selection{background:var(--magenta);color:#fff}.eyebrow{font-family:var(--sans);font-weight:800;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--magenta);margin:0}.eyebrow.navy{color:var(--navy-300)}h1,h2,h3{font-family:var(--serif);font-weight:700;color:var(--ink);margin:0;line-height:1.08}.display{font-family:var(--serif)}a{color:inherit}.btn{font-family:var(--sans);font-weight:800;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;border:none;border-radius:var(--radius);padding:14px 26px;cursor:pointer;transition:transform .18s ease,background .2s ease,box-shadow .2s ease,color .2s ease;display:inline-flex;align-items:center;gap:9px;white-space:nowrap}.btn:active{transform:translateY(1px)}.btn-magenta{background:var(--magenta);color:#fff}.btn-magenta:hover{background:var(--magenta-600);box-shadow:0 8px 22px #e2007e47}.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{background:var(--navy-700);box-shadow:0 8px 22px #0e1e4540}.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line-strong)}.btn-ghost:hover{border-color:var(--magenta);color:var(--magenta)}.btn-sm{padding:9px 16px;font-size:11px}.field-label{display:block;font-family:var(--sans);font-weight:700;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 9px}.input,.select{width:100%;font-family:var(--sans);font-size:15px;font-weight:500;color:var(--ink);background:var(--bg);border:1.5px solid var(--line-strong);border-radius:var(--radius);padding:13px 15px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;outline:none}.input::placeholder{color:var(--ink-faint);font-weight:500}.input:focus,.select:focus{border-color:var(--magenta);box-shadow:0 0 0 4px var(--magenta-050);background:var(--card)}.select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23E2007E' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px;cursor:pointer}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.accent-rule{width:44px;height:3px;background:var(--magenta);border:none;margin:0}.fade-up{animation:fadeUp .5s cubic-bezier(.2,.7,.3,1) both}@keyframes fadeUp{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:20px;border:3px solid var(--bg)}::-webkit-scrollbar-thumb:hover{background:var(--navy-300)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}.grid-3-home{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-calc-params{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:end}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}.app-nav{display:flex;align-items:center;gap:4px}@media (max-width: 860px){.app-header-bar{height:auto!important;flex-wrap:wrap;padding-top:12px!important;padding-bottom:12px!important;row-gap:6px}.app-nav{order:3;width:100%;overflow-x:auto;justify-content:flex-start;gap:2px;-webkit-overflow-scrolling:touch}.app-nav button{padding-top:12px!important;padding-bottom:12px!important}.app-nav button span{bottom:0!important}}@media (max-width: 680px){.grid-2,.grid-calc-params,.footer-grid,.grid-3-home{grid-template-columns:1fr!important;gap:18px}.syn-grid{grid-template-columns:1fr!important}}