:root { --ffg-bg:#090d0f; --ffg-panel:#111618; --ffg-panel-2:#171c1f; --ffg-line:#2a3134; --ffg-text:#f3f5f4; --ffg-muted:#9ba4a2; --ffg-mint:#62e1cf; --ffg-mint-2:#2fc9b4; --ffg-dark:#07110f; }
html,body.ffg-full-page { margin:0; background:var(--ffg-bg); }
body.ffg-full-page .ff-rail,body.ffg-full-page .ff-topbar,body.ffg-full-page .ff-corner-cta,body.ffg-full-page .ff-footer,body.ffg-full-page .ff-page-hero { display:none!important; }
body.ffg-full-page .ff-main { margin:0!important; padding:0!important; }
body.ffg-full-page > header, body.ffg-full-page > footer, body.ffg-full-page .wp-site-blocks > header, body.ffg-full-page .wp-site-blocks > footer { display:none!important; }
body.ffg-full-page main, body.ffg-full-page .wp-site-blocks, body.ffg-full-page .entry-content { width:100%!important; max-width:none!important; margin:0!important; padding:0!important; }
body.ffg-full-page .entry-header, body.ffg-full-page .wp-block-post-title, body.ffg-full-page .wp-block-post-featured-image { display:none!important; }
.ffg-app, .ffg-app * { box-sizing:border-box; }
.ffg-app { height:100vh; min-height:680px; overflow:hidden; color:var(--ffg-text); background:radial-gradient(circle at 74% 25%,rgba(70,175,159,.075),transparent 28%),linear-gradient(145deg,#090d0f,#0b1012 55%,#080c0e); font-family:Inter,"Segoe UI",Arial,sans-serif; font-size:14px; line-height:1.45; }
.ffg-app button,.ffg-app input,.ffg-app select { font:inherit; }
.ffg-app input[type="number"] { appearance:textfield; -moz-appearance:textfield; }.ffg-app input[type="number"]::-webkit-inner-spin-button,.ffg-app input[type="number"]::-webkit-outer-spin-button { margin:0; -webkit-appearance:none; }
.ffg-topbar { position:relative; z-index:20; display:flex; align-items:center; justify-content:space-between; min-height:82px; padding:14px 20px; border-bottom:1px solid var(--ffg-line); background:rgba(10,14,16,.92); backdrop-filter:blur(18px); }
.ffg-brand { display:flex; gap:13px; align-items:center; color:inherit; text-decoration:none; }
.ffg-brand > span:last-child { display:grid; }
.ffg-brand strong { font-size:17px; letter-spacing:-.025em; }
.ffg-brand small { color:var(--ffg-muted); font-size:11px; }.ffg-version { display:inline-flex; align-items:center; margin-left:5px; padding:2px 5px; color:var(--ffg-mint); border:1px solid rgba(98,225,207,.28); border-radius:5px; font-size:8px; line-height:1; }
.ffg-mark { position:relative; display:grid; place-items:center; width:44px; height:44px; border:1px solid var(--ffg-line); border-radius:12px; background:radial-gradient(circle at 50% 42%,rgba(98,225,207,.16),transparent 56%),linear-gradient(145deg,#1b2123,#111618); }
.ffg-mark>span { color:var(--ffg-mint); font-family:"Segoe UI Symbol",Inter,sans-serif; font-size:27px; font-style:normal; font-weight:650; line-height:1; text-shadow:0 0 14px rgba(98,225,207,.25); }
.ffg-top-actions { display:flex; gap:10px; align-items:center; }
.ffg-status { display:flex; gap:7px; align-items:center; color:#bac2c0; font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.08em; }
.ffg-status i { width:7px; height:7px; border-radius:50%; background:var(--ffg-mint); box-shadow:0 0 13px var(--ffg-mint); }
.ffg-about-button,.ffg-fullscreen,.ffg-specific-formulas,.ffg-lab-link { min-height:42px; padding:0 16px; color:#d9dddc; border:1px solid var(--ffg-line); border-radius:10px; background:#101517; cursor:pointer; font-size:12px; font-weight:750; }
.ffg-lab-link{display:inline-flex;align-items:center;gap:8px;text-decoration:none;white-space:nowrap}.ffg-lab-link>span{display:grid;place-items:center}.ffg-lab-link svg{width:19px;height:19px;fill:none;stroke:var(--ffg-mint);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.ffg-lab-link:hover{border-color:var(--ffg-mint);color:var(--ffg-mint)}
.ffg-about-button:hover,.ffg-fullscreen:hover,.ffg-specific-formulas:hover { color:var(--ffg-mint); border-color:rgba(98,225,207,.55); }
.ffg-about-button span { margin-right:7px; color:var(--ffg-mint); }
.ffg-shell { display:grid; grid-template-columns:315px minmax(0,1fr); height:calc(100vh - 82px); min-height:598px; }
.ffg-sidebar { position:relative; z-index:10; height:100%; padding:25px 21px; overflow-x:hidden; overflow-y:auto; scrollbar-color:#34403e transparent; border-right:1px solid var(--ffg-line); background:linear-gradient(180deg,rgba(15,20,22,.96),rgba(10,14,16,.98)); }
.ffg-side-section { padding:0 0 20px; margin:0 0 21px; border-bottom:1px solid #22292b; }
.ffg-side-section h2 { margin:0 0 14px; color:#9da5a3; font-size:10px; font-weight:900; letter-spacing:.14em; text-transform:uppercase; }
.ffg-type-tabs { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.ffg-type-tabs button { position:relative; display:grid; grid-template-columns:40px minmax(0,1fr); gap:4px; align-items:center; min-height:68px; padding:9px 8px; color:#c6ccca; border:1px solid var(--ffg-line); border-radius:12px; background:linear-gradient(145deg,#171c1e,#121719); cursor:pointer; font-weight:800; text-align:left; transition:border-color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease; }
.ffg-type-tabs button:hover { border-color:rgba(98,225,207,.48); transform:translateY(-1px); }
.ffg-type-tabs button.is-active { color:#fff; border-color:var(--ffg-mint); background:linear-gradient(145deg,rgba(98,225,207,.14),rgba(31,74,68,.16)); box-shadow:inset 0 0 22px rgba(98,225,207,.055),0 0 0 1px rgba(98,225,207,.12); }
.ffg-tab-icon { display:grid; place-items:center; width:40px; height:44px; color:var(--ffg-mint); box-sizing:border-box; }
.ffg-tab-icon svg { width:30px; height:30px; overflow:visible; fill:none; stroke:currentColor; stroke-width:1.75; stroke-linecap:round; stroke-linejoin:round; }
.ffg-tab-icon text { fill:currentColor; stroke:none; font:700 5px Inter,Arial,sans-serif; }
.ffg-tab-label { min-width:0; color:inherit; font-size:11px; line-height:1.15; overflow-wrap:normal; word-break:normal; text-align:center; }
.ffg-type-tabs button.is-active .ffg-tab-icon { filter:drop-shadow(0 0 7px rgba(98,225,207,.32)); }
.ffg-field { display:grid; gap:7px; margin:0 0 13px; color:#c1c8c6; font-size:11px; }
.ffg-field select,.ffg-field input { width:100%; min-height:40px; padding:0 12px; color:#edf1f0; border:1px solid var(--ffg-line); border-radius:8px; outline:none; background:#161b1d; }
.ffg-field select:focus,.ffg-field input:focus { border-color:rgba(98,225,207,.6); box-shadow:0 0 0 3px rgba(98,225,207,.07); }
.ffg-stepper { display:grid; grid-template-columns:38px 1fr 38px; overflow:hidden; border:1px solid var(--ffg-line); border-radius:8px; background:#161b1d; }
.ffg-stepper input { min-width:0; border:0; border-radius:0; text-align:center; appearance:textfield; }
.ffg-stepper button { color:#d9dedd; border:0; background:#202628; cursor:pointer; font-size:18px; }.ffg-stepper button:hover { color:#07110f; background:var(--ffg-mint); }
.ffg-unit-input { position:relative; }.ffg-unit-input b { position:absolute; right:12px; top:10px; color:var(--ffg-muted); }.ffg-unit-input input { padding-right:30px; }
.ffg-switch { display:flex; align-items:center; justify-content:space-between; min-height:34px; color:#c9cfcd; font-size:11px; cursor:pointer; }
.ffg-switch input { position:absolute; opacity:0; pointer-events:none; }
.ffg-switch i { position:relative; width:34px; height:19px; border:1px solid #3a4244; border-radius:20px; background:#1d2325; transition:.2s; }
.ffg-switch i:after { content:""; position:absolute; top:3px; left:3px; width:11px; height:11px; border-radius:50%; background:#7c8583; transition:.2s; }
.ffg-switch input:checked + i { border-color:var(--ffg-mint); background:rgba(98,225,207,.18); }.ffg-switch input:checked + i:after { left:18px; background:var(--ffg-mint); }
.ffg-chip-row,.ffg-tool-grid { display:flex; flex-wrap:wrap; gap:7px; }
.ffg-chip-row button,.ffg-tool-grid button { min-height:34px; padding:0 10px; color:#bfc6c4; border:1px solid var(--ffg-line); border-radius:8px; background:#151a1c; cursor:pointer; font-size:10px; font-weight:800; }
.ffg-chip-row button.is-active,.ffg-tool-grid button.is-active { color:#06110f; border-color:var(--ffg-mint); background:var(--ffg-mint); }
.ffg-tool-grid button:disabled { opacity:.42; cursor:not-allowed; }
.ffg-tool-grid { display:grid; grid-template-columns:repeat(2,1fr); }.ffg-tool-grid button { min-height:38px; }
.ffg-reset-all { width:100%; min-height:45px; color:#d1d6d5; border:1px solid var(--ffg-line); border-radius:9px; background:#14191b; cursor:pointer; font-size:11px; font-weight:800; }.ffg-reset-all:hover { border-color:var(--ffg-mint); color:var(--ffg-mint); }
.ffg-primary-action { width:100%; min-height:42px; padding:0 14px; color:#06110f; border:0; border-radius:9px; background:var(--ffg-mint); cursor:pointer; font-weight:900; }.ffg-primary-action:hover { background:#8af0e1; }
.ffg-side-note { margin:0; color:var(--ffg-muted); font-size:11px; }
.ffg-side-note.is-error { padding:9px 10px; border:1px solid rgba(255,113,113,.32); border-radius:8px; background:rgba(255,113,113,.08); color:#ffaaaa; line-height:1.45; }
.ffg-main { display:grid; grid-template-rows:minmax(0,1fr) auto; gap:12px; min-width:0; height:100%; padding:14px; overflow:hidden; }
.ffg-stage-card,.ffg-info-card { padding:18px; border:1px solid var(--ffg-line); border-radius:16px; background:linear-gradient(145deg,rgba(23,28,30,.94),rgba(14,19,21,.97)); box-shadow:0 12px 45px rgba(0,0,0,.14); }
.ffg-stage-card { display:grid; grid-template-rows:auto minmax(0,1fr) auto; min-height:0; overflow:hidden; }
.ffg-info-card { min-width:0; max-height:235px; margin:0; overflow:auto; }
.ffg-section-heading { display:flex; gap:20px; align-items:flex-start; justify-content:space-between; margin:0 0 14px; }
.ffg-heading-actions { display:flex; flex:0 0 auto; gap:8px; align-items:center; }.ffg-specific-formulas > span { margin-right:6px; color:var(--ffg-mint); font-family:Inter,"Segoe UI Symbol",Arial,sans-serif; font-size:15px; }
.ffg-formula-icon { display:inline-grid; place-items:center; vertical-align:middle; }.ffg-formula-icon svg { width:20px; height:20px; fill:none; stroke:currentColor; stroke-width:1.65; stroke-linecap:round; stroke-linejoin:round; }
.ffg-section-heading span,.ffg-section-label { color:var(--ffg-mint); font-size:11px; font-weight:900; letter-spacing:.08em; text-transform:uppercase; }
.ffg-section-heading h1 { margin:4px 0 2px; font-size:17px; letter-spacing:-.02em; }.ffg-section-heading p { margin:0; color:var(--ffg-muted); font-size:11px; }
.ffg-fullscreen { width:40px; min-height:40px; padding:0; font-size:18px; }
.ffg-stage { position:relative; width:100%; height:100%; min-height:300px; overflow:hidden; border:1px solid #293033; border-radius:14px; background:radial-gradient(circle at center,rgba(48,72,68,.17),transparent 44%),linear-gradient(145deg,#0d1214,#111719); }
.ffg-canvas,.ffg-canvas canvas,.ffg-polygon-svg,.ffg-net-svg,.ffg-analytic-svg { display:block; width:100%; height:100%; }
.ffg-canvas canvas { touch-action:none; }
.ffg-polygon-svg,.ffg-net-svg,.ffg-analytic-svg { position:absolute; inset:0; }.ffg-polygon-svg,.ffg-analytic-svg { z-index:2; }.ffg-net-svg { z-index:4; }.ffg-analytic-svg { cursor:grab; touch-action:none; }.ffg-analytic-svg:active { cursor:grabbing; }
.ffg-stage-toolbar { position:absolute; z-index:5; left:15px; bottom:14px; display:flex; gap:7px; }
.ffg-stage-toolbar button { min-height:35px; padding:0 11px; color:#d4d9d8; border:1px solid #30383a; border-radius:8px; background:rgba(14,19,21,.82); backdrop-filter:blur(10px); cursor:pointer; font-size:10px; font-weight:750; }.ffg-stage-toolbar button.is-active { color:#06110f; border-color:var(--ffg-mint); background:var(--ffg-mint); }
.ffg-fullscreen-stage { position:absolute; z-index:6; right:14px; bottom:14px; min-height:36px; width:36px; background:rgba(14,19,21,.82); backdrop-filter:blur(10px); }
.ffg-fullscreen-brand { position:absolute; z-index:8; top:18px; left:18px; display:none; grid-template-columns:44px auto; grid-template-rows:auto auto; column-gap:11px; align-items:center; padding:8px 12px 8px 8px; border:1px solid rgba(98,225,207,.2); border-radius:12px; background:rgba(7,12,14,.72); backdrop-filter:blur(12px); }.ffg-fullscreen-brand .ffg-mark { grid-row:1/3; }.ffg-fullscreen-brand strong { align-self:end; font-size:14px; }.ffg-fullscreen-brand small { align-self:start; color:var(--ffg-muted); font-size:9px; }
.ffg-watermark { position:absolute; z-index:5; right:64px; bottom:23px; color:rgba(226,237,234,.32); font-size:9px; font-weight:800; letter-spacing:.04em; pointer-events:none; }.ffg-watermark span { color:var(--ffg-mint); }
.ffg-selection-card,.ffg-measure-card { position:absolute; z-index:5; top:15px; right:15px; display:grid; width:min(270px,calc(100% - 30px)); padding:12px 14px; border:1px solid rgba(98,225,207,.25); border-radius:10px; background:rgba(9,14,16,.84); backdrop-filter:blur(12px); pointer-events:none; }
.ffg-selection-card small,.ffg-measure-card small { color:var(--ffg-mint); font-size:8px; font-weight:900; letter-spacing:.12em; text-transform:uppercase; }.ffg-selection-card strong,.ffg-measure-card strong { margin:3px 0; font-size:12px; }.ffg-selection-card span,.ffg-measure-card span { color:var(--ffg-muted); font-size:9px; }
.ffg-measure-card { top:auto; bottom:62px; right:15px; }
.ffg-net-control { display:grid; grid-template-columns:auto minmax(120px,1fr) auto auto; gap:11px; align-items:center; padding:15px 4px 1px; color:#b8c0be; font-size:10px; font-weight:800; }
.ffg-net-control input { width:100%; accent-color:var(--ffg-mint); }.ffg-net-control span:last-of-type { display:flex; gap:6px; align-items:center; }.ffg-net-control b { min-width:34px; color:var(--ffg-mint); font-size:9px; }.ffg-net-control select { min-height:34px; padding:0 10px; color:#e8eceb; border:1px solid var(--ffg-line); border-radius:8px; background:#141a1c; }
.ffg-section-label { margin-bottom:14px; }
.ffg-solid-info { display:grid; grid-template-columns:minmax(0,.8fr) minmax(0,1.5fr); gap:12px; min-width:0; }
.ffg-info-intro { min-width:0; padding:16px; border:1px solid #252c2e; border-radius:12px; background:#111719; }.ffg-info-intro h2 { margin:0 0 4px; font-size:17px; }.ffg-info-intro p { margin:0 0 12px; color:var(--ffg-muted); font-size:10px; }.ffg-info-intro span { display:block; color:var(--ffg-mint); font-size:9px; font-weight:800; }
.ffg-stat-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; min-width:0; }.ffg-stat-grid article { position:relative; display:grid; grid-template-columns:42px minmax(0,1fr); grid-template-rows:auto auto auto; min-width:0; padding:12px; border:1px solid #293033; border-radius:11px; background:linear-gradient(145deg,#171d1f,#111719); }.ffg-stat-grid i { grid-row:1/4; display:grid; place-items:center; align-self:center; width:34px; height:34px; color:var(--ffg-mint); border:1px solid #2b3536; border-radius:8px; background:#1d2426; font-size:18px; font-style:normal; }.ffg-stat-grid strong { min-width:0; font-size:21px; line-height:1; }.ffg-stat-grid span { min-width:0; color:#d5dad9; font-size:10px; }.ffg-stat-grid small { min-width:0; overflow-wrap:anywhere; color:var(--ffg-muted); font-size:8px; line-height:1.25; }
.ffg-euler { grid-column:1/-1; display:flex; align-items:center; justify-content:space-between; padding:12px 15px; border:1px solid rgba(98,225,207,.23); border-radius:10px; background:rgba(98,225,207,.045); }.ffg-euler span { color:var(--ffg-mint); font-size:9px; font-weight:900; text-transform:uppercase; letter-spacing:.1em; }.ffg-euler strong { font-family:Inter,"Segoe UI Symbol",Arial,sans-serif; font-size:15px; }
.ffg-solid-measures { grid-column:1/-1; display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:10px; min-width:0; }
.ffg-round-info { display:grid; grid-template-columns:minmax(210px,.75fr) minmax(0,1.6fr); gap:12px; min-width:0; }.ffg-round-formulas { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; }.ffg-round-formulas .ffg-formula { min-width:0; }.ffg-round-formulas code { overflow-wrap:anywhere; }
.ffg-dimensions { margin-top:14px!important; padding-top:10px; border-top:1px solid var(--ffg-line); }.ffg-dimensions strong { color:#fff; }
.ffg-polygon-info { display:grid; grid-template-columns:repeat(3,minmax(150px,1fr)); gap:10px; }.ffg-formula { padding:14px; border:1px solid #293033; border-radius:11px; background:#111719; }.ffg-formula > span { color:var(--ffg-muted); font-size:9px; font-weight:800; text-transform:uppercase; letter-spacing:.07em; }.ffg-formula strong { display:block; margin:5px 0 3px; color:#fff; font-size:19px; }.ffg-formula code { display:flex; align-items:center; flex-wrap:wrap; gap:.12em; min-height:24px; color:var(--ffg-mint); font-family:Inter,"Segoe UI Symbol",Arial,sans-serif; font-size:12px; line-height:1.65; white-space:normal; }.ffg-formula.is-wide { grid-column:span 2; }
.ffg-frac { display:inline-grid!important; grid-template-rows:auto auto; align-items:center; min-width:1.3em; margin:0 .14em; color:inherit!important; font:inherit!important; line-height:1.05; text-align:center; text-transform:none!important; letter-spacing:0!important; vertical-align:middle; }.ffg-frac > span { display:block; padding:0 .16em; color:inherit!important; font:inherit!important; text-transform:none!important; letter-spacing:0!important; }.ffg-frac > span:first-child { padding-bottom:.12em; border-bottom:1px solid currentColor; }.ffg-frac > span:last-child { padding-top:.12em; }.ffg-frac .ffg-frac { font-size:.82em!important; }.ffg-math-separator { display:inline-block; margin:0 .72em; color:var(--ffg-muted)!important; font-family:Inter,"Segoe UI",Arial,sans-serif!important; font-size:.68em!important; font-style:normal; text-transform:lowercase!important; letter-spacing:.04em!important; }
.ffg-root{display:inline-block!important;margin:0 .1em;color:inherit!important;font:inherit!important;font-family:Inter,"Segoe UI Math","Cambria Math",sans-serif!important;line-height:1.15;vertical-align:-.12em}.ffg-root msqrt,.ffg-root mpadded{color:inherit!important;font:inherit!important;font-family:inherit!important}.ffg-root mtext{color:inherit!important;font:inherit!important;font-family:inherit!important;text-transform:none!important;letter-spacing:.025em!important}
.ffg-expression-feedback { min-height:18px; margin:-4px 0 10px; color:var(--ffg-muted); font-size:10px; }.ffg-expression-feedback.is-error { color:#ff9b88; }.ffg-analytic-actions { display:grid; grid-template-columns:minmax(0,1fr) auto; gap:8px; }.ffg-help-action { min-height:42px; padding:0 13px; color:var(--ffg-mint); border:1px solid rgba(98,225,207,.38); border-radius:9px; background:#141a1c; cursor:pointer; font-size:10px; font-weight:850; }.ffg-help-action:hover { border-color:var(--ffg-mint); }.ffg-analytic-help code { color:var(--ffg-mint); font-family:Inter,"Segoe UI Symbol",Arial,sans-serif; }.ffg-analytic-list { display:grid; gap:7px; }.ffg-analytic-list > div { display:grid; grid-template-columns:8px minmax(0,1fr) 26px; gap:8px; align-items:center; padding:8px; border:1px solid var(--ffg-line); border-radius:8px; background:#141a1c; }.ffg-analytic-list i { width:7px; height:7px; border-radius:50%; }.ffg-analytic-list span { display:grid; gap:1px; min-width:0; overflow-wrap:anywhere; color:#d8dddc; font-family:Inter,"Segoe UI Symbol",Arial,sans-serif; font-size:10px; }.ffg-analytic-list span b { color:var(--ffg-mint); font-family:Inter,"Segoe UI",Arial,sans-serif; font-size:8px; text-transform:uppercase; letter-spacing:.07em; }.ffg-analytic-list button { width:25px; height:25px; color:#9ba4a2; border:0; background:transparent; cursor:pointer; font-size:17px; }.ffg-analytic-list p { color:var(--ffg-muted); font-size:10px; }
.ffg-analytic-info { display:grid; grid-template-columns:minmax(210px,.6fr) minmax(0,1.5fr); gap:12px; }.ffg-analytic-summary { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; min-width:0; }.ffg-analytic-summary .ffg-formula { min-width:0; }.ffg-analytic-summary code { overflow-wrap:anywhere; }.ffg-analytic-summary small { display:block; margin-top:7px; color:var(--ffg-muted); font-size:9px; }
.ffg-calculator-panel { position:absolute; z-index:3; inset:0; display:grid; place-items:center; padding:24px; overflow:auto; background:radial-gradient(circle at center,rgba(57,109,101,.16),transparent 46%); }.ffg-calc-shell,.ffg-calc-form { width:min(650px,100%); padding:22px; border:1px solid #303a3a; border-radius:16px; background:rgba(13,18,20,.94); box-shadow:0 24px 70px rgba(0,0,0,.3); }.ffg-calc-mode,.ffg-calc-form > span { display:block; margin-bottom:10px; color:var(--ffg-mint); font-size:10px; font-weight:900; text-transform:uppercase; letter-spacing:.1em; }.ffg-calc-shell output { display:flex; align-items:center; justify-content:flex-end; min-height:70px; margin-bottom:14px; padding:10px 16px; overflow:auto; color:#fff; border:1px solid var(--ffg-line); border-radius:11px; background:#090d0f; font-family:Inter,"Segoe UI Symbol",Arial,sans-serif; font-size:28px; }.ffg-calc-keypad { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; }.ffg-calc-keypad.is-scientific { grid-template-columns:repeat(5,1fr); }.ffg-calc-keypad button { min-height:45px; color:#e7ebea; border:1px solid #30383a; border-radius:9px; background:#192022; cursor:pointer; font-weight:800; }.ffg-calc-keypad button:hover { border-color:var(--ffg-mint); }.ffg-calc-keypad button.is-equals { color:#07110f; background:var(--ffg-mint); }.ffg-calc-keypad button.is-wide { grid-column:1/-1; }.ffg-calc-form h2 { margin:0 0 18px; font-size:23px; }.ffg-calc-form label { display:grid; gap:6px; margin-bottom:13px; color:#c4cac8; font-size:11px; }.ffg-calc-form input,.ffg-calc-form select { min-height:42px; padding:0 12px; color:#fff; border:1px solid var(--ffg-line); border-radius:8px; background:#151b1d; }.ffg-calc-form input:disabled { color:var(--ffg-mint); border-color:rgba(98,225,207,.5); background:rgba(98,225,207,.08); cursor:not-allowed; }.ffg-calc-form label.is-target { color:var(--ffg-mint); font-weight:800; }.ffg-fin-options,.ffg-calc-form-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }.ffg-fin-options { margin-bottom:6px; }.ffg-fin-hint { margin:0 0 14px; color:var(--ffg-muted); font-size:10px; }.ffg-calc-result { display:grid; gap:8px; margin-top:14px; padding:15px; color:#b8c2bf; border:1px solid rgba(98,225,207,.22); border-radius:10px; background:rgba(98,225,207,.05); }.ffg-calc-result strong { color:#fff; font-size:18px; }.ffg-calc-result code { display:flex; align-items:center; flex-wrap:wrap; gap:.12em; min-height:32px; padding-top:6px; color:var(--ffg-mint); border-top:1px solid rgba(98,225,207,.14); font-family:Inter,"Segoe UI Symbol",Arial,sans-serif; font-size:15px; line-height:1.8; }.ffg-matrix { display:grid; grid-template-columns:repeat(var(--matrix-size),minmax(50px,1fr)); gap:8px; width:min(360px,100%); margin:4px auto 16px; }.ffg-matrix input { appearance:textfield; -moz-appearance:textfield; text-align:center; }.ffg-matrix input::-webkit-inner-spin-button,.ffg-matrix input::-webkit-outer-spin-button { margin:0; -webkit-appearance:none; }.ffg-calculator-info .ffg-formula-library { grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); }
.ffg-about { width:min(590px,calc(100vw - 28px)); max-width:none; padding:30px; color:var(--ffg-text); border:1px solid var(--ffg-line); border-radius:17px; background:linear-gradient(145deg,#1a2022,#101517); box-shadow:0 35px 100px rgba(0,0,0,.7); }.ffg-about::backdrop { background:rgba(2,5,6,.78); backdrop-filter:blur(7px); }.ffg-about > button { position:absolute; top:13px; right:13px; width:34px; height:34px; color:#aeb5b3; border:1px solid var(--ffg-line); border-radius:9px; background:transparent; cursor:pointer; font-size:20px; }.ffg-about > span { color:var(--ffg-mint); font-size:9px; font-weight:900; text-transform:uppercase; letter-spacing:.13em; }.ffg-about h2 { margin:8px 35px 10px 0; font-size:26px; }.ffg-about p,.ffg-about li { color:#b8c0be; font-size:12px; }.ffg-about li { margin:5px 0; }.ffg-about small { display:block; margin-top:18px; color:var(--ffg-mint); font-weight:800; }
.ffg-formulas-dialog { width:min(920px,calc(100vw - 28px)); max-height:min(820px,calc(100vh - 28px)); overflow:auto; }.ffg-formula-library { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }.ffg-formula-library article { min-width:0; padding:15px; border:1px solid #2b3436; border-radius:11px; background:#111719; }.ffg-formula-library h3 { margin:0 0 9px; color:#fff; font-size:13px; }.ffg-formula-library code { display:flex; align-items:center; flex-wrap:wrap; gap:.12em; min-height:34px; color:var(--ffg-mint); font-family:Inter,"Segoe UI Symbol",Arial,sans-serif; font-size:16px; line-height:1.75; overflow-wrap:anywhere; }.ffg-formula-library p { margin:9px 0 0; color:var(--ffg-muted); font-size:10px; }
.ffg-formula-diagram { display:block; width:100%; color:var(--ffg-mint); }.ffg-formula-diagram svg { display:block; width:100%; max-width:310px; height:auto; margin:auto; overflow:visible; }.ffg-formula-diagram path { fill:rgba(98,225,207,.07); stroke:currentColor; stroke-width:2; stroke-linejoin:round; }.ffg-formula-diagram text { fill:#b8c2bf; font-family:Inter,"Segoe UI",Arial,sans-serif; font-size:8px; text-anchor:middle; }
.ffg-stage:fullscreen { width:100vw; height:100vh; min-height:100vh; border:0; border-radius:0; background:#090e10; }.ffg-stage:fullscreen .ffg-fullscreen-stage,.ffg-stage:fullscreen .ffg-fullscreen-brand { display:grid; }.ffg-stage:fullscreen .ffg-watermark { right:50%; bottom:18px; transform:translateX(50%); color:rgba(226,237,234,.55); font-size:11px; white-space:nowrap; }
.ffg-app [hidden] { display:none!important; }

@media (max-width:1100px) {
  .ffg-shell { grid-template-columns:270px minmax(0,1fr); }.ffg-sidebar { padding:21px 16px; }.ffg-solid-info,.ffg-round-info,.ffg-analytic-info { grid-template-columns:1fr; }.ffg-info-card { max-height:270px; }.ffg-stat-grid article { padding:11px; }.ffg-solid-measures { grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:820px) {
  .ffg-app { height:auto; min-height:100vh; overflow:visible; }.ffg-topbar { min-height:72px; }.ffg-status { display:none; }.ffg-lab-link{width:42px;padding:0;justify-content:center;font-size:0}.ffg-shell { display:block; height:auto; min-height:0; }.ffg-sidebar { height:auto; overflow:visible; border-right:0; border-bottom:1px solid var(--ffg-line); }.ffg-type-tabs { max-width:620px; grid-template-columns:repeat(2,1fr); }.ffg-main { display:block; height:auto; padding:12px; overflow:visible; }.ffg-stage-card,.ffg-info-card { padding:13px; }.ffg-info-card { max-height:none; margin-top:12px; }.ffg-stage { height:58vh; min-height:410px; }.ffg-polygon-info { grid-template-columns:repeat(2,minmax(140px,1fr)); }.ffg-round-formulas { grid-template-columns:repeat(2,minmax(0,1fr)); }.ffg-analytic-summary { grid-template-columns:1fr; }
}
@media (max-width:560px) {
  .ffg-topbar { padding:11px 12px; }.ffg-brand strong { font-size:14px; }.ffg-brand small { font-size:9px; }.ffg-mark { width:39px; height:39px; }.ffg-mark b,.ffg-mark i { top:11px; font-size:16px; }.ffg-mark b { left:10px; }.ffg-mark i { left:18px; }.ffg-about-button { width:40px; padding:0; font-size:0; }.ffg-about-button span { margin:0; font-size:18px; }.ffg-sidebar { padding:18px 14px; }.ffg-side-section { margin-bottom:16px; padding-bottom:16px; }.ffg-main { padding:8px; }.ffg-section-heading { gap:8px; }.ffg-section-heading p { max-width:220px; }.ffg-heading-actions { align-items:flex-start; }.ffg-specific-formulas { width:42px; padding:0; font-size:0; }.ffg-specific-formulas > span { margin:0; font-size:14px; }.ffg-stage { min-height:360px; height:54vh; }.ffg-stage-toolbar { right:54px; left:10px; bottom:10px; }.ffg-stage-toolbar button { flex:1; padding:0 8px; }.ffg-fullscreen-stage { right:10px; bottom:10px; }.ffg-selection-card { top:10px; right:10px; width:calc(100% - 20px); }.ffg-measure-card { right:10px; bottom:54px; width:calc(100% - 20px); }.ffg-stat-grid { grid-template-columns:1fr; }.ffg-stat-grid article { grid-template-columns:42px 1fr; }.ffg-euler { display:grid; gap:4px; }.ffg-solid-measures { grid-template-columns:1fr; }.ffg-polygon-info { grid-template-columns:1fr; }.ffg-formula.is-wide { grid-column:auto; }.ffg-net-control { grid-template-columns:auto 1fr auto; }.ffg-net-control select { grid-column:1/-1; }.ffg-info-card { margin-top:8px; }.ffg-about { padding:24px 20px; }.ffg-formula-library { grid-template-columns:1fr; }.ffg-fin-options,.ffg-calc-form-grid { grid-template-columns:1fr; }.ffg-calculator-panel { padding:10px; }.ffg-calc-shell,.ffg-calc-form { padding:14px; }.ffg-calc-keypad.is-scientific { grid-template-columns:repeat(5,minmax(0,1fr)); }.ffg-calc-keypad button { min-width:0; padding:0 3px; font-size:12px; }
}
.ffg-version{font-family:inherit;cursor:pointer}.ffg-expression-shortcuts{display:flex;gap:7px;margin:-3px 0 10px}.ffg-expression-shortcuts button{min-width:44px;height:34px;border:1px solid var(--ffg-line);border-radius:7px;background:#182022;color:var(--ffg-mint);font-weight:850}.ffg-expression-shortcuts button:hover{border-color:var(--ffg-mint)}.ffg-formula code,.ffg-formula-library code{gap:.3em;font-size:15px;line-height:1.9;letter-spacing:.015em}.ffg-formula-library p{font-size:12px;line-height:1.55}.ffg-formula strong{font-size:21px;line-height:1.3}.ffg-round-formulas{grid-template-columns:repeat(2,minmax(0,1fr))}.ffg-round-formulas .ffg-formula{padding:16px}.ffg-round-formulas code{font-size:14px}.ffg-stat-grid article{grid-template-columns:42px minmax(0,1fr);grid-template-rows:auto auto auto;gap:2px 10px;min-height:88px;align-content:center}.ffg-stat-grid strong{font-size:24px}.ffg-stat-grid span{font-size:12px;font-weight:800}.ffg-stat-grid small{font-size:10px;line-height:1.4}.ffg-quadratic-details{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin:12px 0 0}.ffg-quadratic-details div{min-width:0;padding:9px 10px;border:1px solid rgba(98,225,207,.13);border-radius:7px;background:rgba(98,225,207,.035)}.ffg-quadratic-details dt{color:var(--ffg-muted);font-size:9px;font-weight:800;text-transform:uppercase}.ffg-quadratic-details dd{display:flex;align-items:center;min-height:25px;margin:5px 0 0;color:#eef3f1;font-size:13px;line-height:1.55}.ffg-root-list{display:grid;gap:8px}.ffg-root-list>span,.ffg-coordinate{display:flex;align-items:center;flex-wrap:wrap;gap:.28em}.ffg-root-list b{color:var(--ffg-mint);font-weight:900}.ffg-quadratic-details .ffg-frac{font-size:1.05em}.ffg-quadratic-details .ffg-root{font-size:1em}.ffg-analytic-summary{grid-template-columns:1fr}.ffg-formula-diagram{display:block;width:100%}.ffg-formula-diagram svg{width:100%;height:auto;min-height:100px}.ffg-type-tabs button{grid-template-columns:38px minmax(0,1fr);min-height:64px}.ffg-tab-label{font-size:12px;line-height:1.1}.ffg-frac{margin-inline:.12em}.ffg-frac>span{padding-inline:.22em}
.ffg-root-list small{display:flex;align-items:center;flex-wrap:wrap;gap:.2em;padding-top:5px;color:var(--ffg-muted);border-top:1px solid rgba(98,225,207,.1);font-size:10px}
.ffg-math-product{display:inline-flex;align-items:center;gap:.24em;white-space:nowrap;vertical-align:middle}.ffg-math-product>span[aria-hidden="true"]{font-size:.72em;opacity:.78}.ffg-math-product .ffg-root{margin:0;vertical-align:middle}.ffg-frac>span:first-child .ffg-math-product{padding:.08em .14em .13em}
@media(max-width:620px){.ffg-quadratic-details{grid-template-columns:1fr}.ffg-formula code,.ffg-formula-library code{font-size:14px}.ffg-type-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.ffg-type-tabs button{padding:8px}}

/* Referência rápida de triângulos */
.ffg-formulas-dialog.is-triangle-reference{width:min(1480px,calc(100vw - 24px));max-height:calc(100vh - 24px);background:radial-gradient(circle at 72% 14%,rgba(36,91,101,.14),transparent 32%),#091217}
.ffg-triangle-library{display:grid;grid-template-columns:1fr;gap:20px}
.ffg-triangle-section{display:grid;gap:12px}
.ffg-triangle-section>header{display:grid;grid-template-columns:auto 1fr;column-gap:13px;align-items:end;padding:4px 2px 8px;border-bottom:1px solid #314146}
.ffg-triangle-section>header span{grid-row:1/3;align-self:center;padding:7px 10px;color:#071310;border-radius:7px;background:var(--ffg-mint);font-size:9px;font-weight:950;text-transform:uppercase;letter-spacing:.09em}
.ffg-triangle-section>header h3{margin:0;color:#fff;font-size:20px}
.ffg-triangle-section>header p{margin:2px 0 0;color:#91a0a3;font-size:11px}
.ffg-triangle-section-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.ffg-triangle-library article{display:grid;grid-template-columns:minmax(0,1fr) minmax(115px,42%);align-items:center;min-height:188px;padding:22px 24px;border-color:#334248;border-radius:13px;background:linear-gradient(135deg,rgba(17,29,35,.98),rgba(9,19,24,.98))}
.ffg-triangle-library article.is-wide{grid-column:1/-1;grid-template-columns:minmax(240px,1fr) minmax(150px,.55fr)}
.ffg-triangle-section.is-advanced .ffg-triangle-section-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ffg-triangle-library article.is-advanced{grid-template-columns:1fr;min-height:150px}
.ffg-triangle-library h3{font-size:20px;margin-bottom:14px}
.ffg-triangle-library code{font-size:24px;line-height:1.6}
.ffg-triangle-library p{font-size:14px;line-height:1.55}
.ffg-triangle-library .ffg-formula-diagram svg{max-width:460px;min-height:118px}
.ffg-triangle-card-diagram{display:block;color:#66dfcf}
.ffg-triangle-card-diagram img{display:block;width:100%;height:140px;object-fit:contain}
.ffg-triangle-card-diagram path{fill:none;stroke:#f0f3f2;stroke-width:2.3;stroke-linecap:round;stroke-linejoin:round}
.ffg-triangle-card-diagram path.guide{stroke:#b7c4c6;stroke-dasharray:6 5;stroke-width:1.6}
.ffg-triangle-card-diagram path.right,.ffg-triangle-card-diagram path.tick{stroke:#edf2f0;stroke-width:1.8}
.ffg-triangle-card-diagram path.angle{fill:rgba(98,225,207,.26);stroke:#69dfcf}
.ffg-triangle-card-diagram text{fill:#69dfcf;font-family:Inter,"Segoe UI",Arial,sans-serif;font-size:16px;font-style:italic;text-anchor:middle}
@media(max-width:1050px){.ffg-triangle-section-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ffg-triangle-library article.is-wide{grid-column:1/-1}}
@media(max-width:680px){.ffg-formulas-dialog.is-triangle-reference{width:calc(100vw - 12px)}.ffg-triangle-section-grid,.ffg-triangle-section.is-advanced .ffg-triangle-section-grid{grid-template-columns:1fr}.ffg-triangle-section>header{grid-template-columns:1fr;align-items:start}.ffg-triangle-section>header span{grid-row:auto;width:max-content;margin-bottom:5px}.ffg-triangle-library article,.ffg-triangle-library article.is-wide{grid-column:auto;grid-template-columns:minmax(0,1fr) minmax(100px,40%);min-height:155px;padding:17px}.ffg-triangle-library article.is-advanced{grid-template-columns:1fr}.ffg-triangle-library h3{font-size:17px}.ffg-triangle-library code{font-size:19px}.ffg-triangle-library p{font-size:12px}}

/* Referência rápida de quadriláteros */
.ffg-formulas-dialog.is-quadrilateral-reference{width:min(1480px,calc(100vw - 24px));max-height:calc(100vh - 24px);background:radial-gradient(circle at 72% 14%,rgba(36,91,101,.14),transparent 32%),#091217}
.ffg-quadrilateral-library{display:grid;grid-template-columns:1fr;gap:20px}
.ffg-quadrilateral-section{display:grid;gap:12px}
.ffg-quadrilateral-section>header{display:grid;grid-template-columns:auto 1fr;column-gap:13px;align-items:end;padding:4px 2px 8px;border-bottom:1px solid #314146}
.ffg-quadrilateral-section>header span{grid-row:1/3;align-self:center;padding:7px 10px;color:#071310;border-radius:7px;background:var(--ffg-mint);font-size:9px;font-weight:950;text-transform:uppercase;letter-spacing:.09em}
.ffg-quadrilateral-section>header h3{margin:0;color:#fff;font-size:20px}.ffg-quadrilateral-section>header p{margin:2px 0 0;color:#91a0a3;font-size:11px}
.ffg-quadrilateral-section-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.ffg-quadrilateral-library article{display:grid;grid-template-columns:minmax(0,1fr) minmax(135px,40%);align-items:center;min-height:205px;padding:22px 24px;border-color:#334248;border-radius:13px;background:linear-gradient(135deg,rgba(17,29,35,.98),rgba(9,19,24,.98))}
.ffg-quadrilateral-library article.is-wide{grid-column:1/-1;grid-template-columns:minmax(240px,1fr) minmax(180px,.5fr)}
.ffg-quadrilateral-library article.is-relation{grid-template-columns:1fr;min-height:145px}
.ffg-quadrilateral-library h3{font-size:20px;margin-bottom:14px}.ffg-quadrilateral-library code{font-size:23px;line-height:1.65}.ffg-quadrilateral-library p{font-size:14px;line-height:1.55}
.ffg-card-formula-label{display:inline-block;margin-top:10px;color:#aebcba!important;font-family:Inter,"Segoe UI",Arial,sans-serif!important;font-size:11px!important;font-style:normal;font-weight:850;letter-spacing:.035em!important;text-transform:none!important}
.ffg-quadrilateral-card-diagram{display:block}.ffg-quadrilateral-card-diagram img{display:block;width:100%;height:155px;object-fit:contain}
.ffg-quadrilateral-section.is-relations .ffg-quadrilateral-section-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:1050px){.ffg-quadrilateral-section.is-relations .ffg-quadrilateral-section-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){.ffg-formulas-dialog.is-quadrilateral-reference{width:calc(100vw - 12px)}.ffg-quadrilateral-section-grid,.ffg-quadrilateral-section.is-relations .ffg-quadrilateral-section-grid{grid-template-columns:1fr}.ffg-quadrilateral-section>header{grid-template-columns:1fr;align-items:start}.ffg-quadrilateral-section>header span{grid-row:auto;width:max-content;margin-bottom:5px}.ffg-quadrilateral-library article,.ffg-quadrilateral-library article.is-wide{grid-column:auto;grid-template-columns:minmax(0,1fr) minmax(108px,38%);min-height:170px;padding:17px}.ffg-quadrilateral-library article.is-relation{grid-template-columns:1fr}.ffg-quadrilateral-library h3{font-size:17px}.ffg-quadrilateral-library code{font-size:18px}.ffg-quadrilateral-library p{font-size:12px}.ffg-quadrilateral-card-diagram img{height:125px}}

/* Revisão 1.10.2: painéis analíticos, módulos e quadriláteros */
.ffg-quadratic-details div.is-wide{grid-column:1/-1}.ffg-quadratic-details div.is-wide dd{display:block;line-height:1.75}.ffg-linear-details .ffg-frac{font-size:1.08em}
.ffg-quadrilateral-formulas{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:10px}.ffg-quadrilateral-formulas>span{display:grid;align-content:center;min-width:0;min-height:74px;padding:10px 12px;border:1px solid rgba(98,225,207,.16);border-radius:9px;background:rgba(98,225,207,.035)}.ffg-quadrilateral-formulas>span:last-child{grid-column:1/-1}.ffg-quadrilateral-formulas small{color:#aebcba;font-size:10px;font-weight:850}.ffg-quadrilateral-formulas code{min-height:32px;margin-top:3px;font-size:21px!important;line-height:1.45!important}.ffg-quadrilateral-library article.is-measure-card{grid-template-columns:minmax(300px,1.25fr) minmax(145px,.65fr)}
@media(max-width:680px){.ffg-quadrilateral-library article.is-measure-card{grid-template-columns:1fr}.ffg-quadrilateral-formulas{grid-template-columns:1fr}.ffg-quadrilateral-formulas>span:last-child{grid-column:auto}}