/* FSA⁴Future · site V1 · CSS único.
   Origem: Design System v1.1 (tokens/*.css + components/components.css), congelado.
   Seções marcadas "IMPL" são ajustes de implementação registrados no QA-LOG. */

/* Fontes — Montserrat (OFL) auto-hospedada: sem chamada a terceiros (LGPD, CWV). */
@font-face{font-family:"Montserrat";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/montserrat-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-style:normal;font-weight:500;font-display:swap;src:url("../fonts/montserrat-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/montserrat-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-style:normal;font-weight:700;font-display:swap;src:url("../fonts/montserrat-latin-700-normal.woff2") format("woff2")}

/* Tokens */
:root{
/* Institutional palette (Brand Core v1.1) */
--petrol-950:#042733;--petrol-900:#073B4C;--petrol-800:#0B4A5E;--petrol-700:#145C72;--petrol-600:#2A7288;--petrol-400:#6F9FAE;--petrol-200:#B6D0D7;--petrol-100:#D9E7EA;--petrol-50:#EDF4F5;
--graphite-900:#111820;--graphite-700:#2C343D;--graphite-600:#454D56;--graphite-500:#5E656D;--graphite-400:#878C91;--graphite-300:#B3B4B3;
--copper-500:#C06F42;--copper-600:#A85C34;--copper-700:#8E4B28;--copper-200:#E9C7B2;--copper-100:#F5E6DB;
--sand-500:#CFC2B0;--sand-400:#DDD2C3;--sand-300:#E8DFD3;--sand-100:#F1ECE4;
--off-white:#F8F6F1;--white:#FFFFFF;
/* Contextual front colors — sections, chips, icons, borders, hover. NEVER in the logo.
   Official: *-500. DERIVED (provisional, not brand colors until contrast + visual review): *-700, *-100. */
--flow-500:#4F7D52;--flow-700:#375A3A;--flow-100:#E4EEE4;
--partners-500:#B9683D;--partners-700:#8A4927;--partners-100:#F6E6DC;
--solutions-500:#247A8B;--solutions-700:#175565;--solutions-100:#DDEEF1;
--products-500:#65439B;--products-700:#4A2F77;--products-100:#ECE5F5;
/* Semantic */
--success-500:#2E7D5B;--success-100:#E0EFE6;--warning-500:#A86A12;--warning-100:#F7EAD2;--danger-500:#B3261E;--danger-100:#F7E0DE;--info-500:#1F7A8C;--info-100:#DCEEF1;
/* Aliases */
--bg-page:var(--off-white);--bg-surface:var(--white);--bg-subtle:var(--sand-100);--bg-sand:var(--sand-300);--bg-inverse:var(--petrol-900);--bg-inverse-deep:var(--petrol-950);
--text-strong:var(--graphite-900);--text-body:var(--graphite-700);--text-muted:var(--graphite-500);--text-on-inverse:var(--off-white);--text-on-inverse-muted:var(--petrol-200);--text-brand:var(--petrol-900);--text-accent:var(--copper-700);
--border-subtle:var(--sand-400);--border-default:var(--sand-500);--border-strong:var(--graphite-400);--border-inverse:rgba(248,246,241,.18);
--action-primary:var(--petrol-900);--action-primary-hover:var(--petrol-800);--action-accent:var(--copper-600);--action-accent-hover:var(--copper-700);
--focus-ring:var(--copper-500);
}
:root{
--font-sans:"Montserrat",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
--weight-regular:400;--weight-medium:500;--weight-semibold:600;--weight-bold:700;
/* Desktop scale (size/line-height) */
--h1-size:64px;--h1-lh:68px;--h2-size:48px;--h2-lh:54px;--h3-size:32px;--h3-lh:40px;--h4-size:24px;--h4-lh:32px;
--body-lg-size:20px;--body-lg-lh:30px;--body-size:16px;--body-lh:26px;--small-size:14px;--small-lh:22px;
--eyebrow-size:13px;--eyebrow-lh:20px;--eyebrow-tracking:.14em;
--tracking-display:-.02em;--tracking-heading:-.01em;
/* Mobile */
--h1-size-mobile:40px;--h1-lh-mobile:44px;--h2-size-mobile:32px;--h2-lh-mobile:38px;
}
:root{
--space-0:0;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:40px;--space-8:48px;--space-9:64px;--space-10:80px;--space-11:96px;--space-12:128px;
--container-max:1280px;--grid-cols:12; --gutter:32px;--gutter-sm:24px;--grid-cols-mobile:4; --margin-mobile:20px;
--section-y:80px;--section-y-mobile:48px;
--tap-min:44px;
}
:root{
--radius-xs:2px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:20px;--radius-pill:999px;
--shadow-1:0 1px 2px rgba(7,59,76,.06),0 1px 1px rgba(17,24,32,.04);
--shadow-2:0 6px 20px -8px rgba(7,59,76,.18),0 2px 4px rgba(17,24,32,.04);
--shadow-3:0 24px 48px -16px rgba(7,59,76,.28),0 4px 10px rgba(17,24,32,.06);
--overlay:rgba(4,39,51,.56);
--ease-out:cubic-bezier(.2,.7,.2,1); 
--ease-in-out:cubic-bezier(.65,0,.35,1); 
--dur-1:180ms; 
--dur-2:240ms; 
--dur-3:300ms; 
}
@media (prefers-reduced-motion:reduce){:root{--dur-1:0ms; 
--dur-2:0ms; 
--dur-3:0ms; 
}}

/* Componentes (components.css do DS) */
/* Base */
.f4-root,.f4-root *{box-sizing:border-box}
/* Button */
.f4-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--font-sans);font-weight:600;font-size:16px;line-height:24px;border-radius:var(--radius-md);border:1.5px solid transparent;padding:12px 24px;min-height:48px;cursor:pointer;text-decoration:none;white-space:nowrap;transition:background-color var(--dur-2) var(--ease-out),color var(--dur-2) var(--ease-out),border-color var(--dur-2) var(--ease-out),transform var(--dur-1) var(--ease-out)}
.f4-btn:active{transform:translateY(1px)}
.f4-btn:focus-visible,.f4-iconbtn:focus-visible,.f4-chip:focus-visible,.f4-tab:focus-visible,.f4-card--link:focus-visible,.f4-step:focus-visible{outline:2px solid var(--focus-ring);outline-offset:3px}
.f4-btn--sm{font-size:14px;line-height:20px;padding:8px 16px;min-height:40px;gap:8px}
.f4-btn--lg{font-size:18px;line-height:26px;padding:16px 28px;min-height:58px}
.f4-btn--primary{background:var(--action-primary);color:var(--white)}.f4-btn--primary:hover{background:var(--action-primary-hover)}
.f4-btn--accent{background:var(--action-accent);color:var(--white)}.f4-btn--accent:hover{background:var(--action-accent-hover)}
.f4-btn--secondary{background:transparent;color:var(--petrol-900);border-color:var(--petrol-900)}.f4-btn--secondary:hover{background:var(--petrol-50)}
.f4-btn--ghost{background:transparent;color:var(--petrol-900);padding-left:0;padding-right:0;min-height:auto}.f4-btn--ghost:hover{color:var(--copper-700)}
.f4-btn--inverse{background:var(--off-white);color:var(--petrol-900)}.f4-btn--inverse:hover{background:var(--sand-300)}
.f4-btn--inverse-outline{background:transparent;color:var(--off-white);border-color:rgba(248,246,241,.5)}.f4-btn--inverse-outline:hover{border-color:var(--off-white);background:rgba(248,246,241,.08)}
.f4-btn--block{display:flex;width:100%}
.f4-btn .f4-btn__arrow{transition:transform var(--dur-2) var(--ease-out)}.f4-btn:hover .f4-btn__arrow{transform:translateX(4px)}
.f4-btn:disabled,.f4-iconbtn:disabled{opacity:.42;cursor:not-allowed;transform:none}
/* IconButton */
.f4-iconbtn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--radius-pill);border:1.5px solid transparent;cursor:pointer;background:transparent;color:var(--petrol-900);transition:background-color var(--dur-2) var(--ease-out),color var(--dur-2)}
.f4-iconbtn--sm{width:36px;height:36px}.f4-iconbtn--primary{background:var(--petrol-900);color:var(--white)}.f4-iconbtn--primary:hover{background:var(--petrol-800)}
.f4-iconbtn--secondary{border-color:var(--border-default);background:var(--white)}.f4-iconbtn--secondary:hover{border-color:var(--petrol-900)}
.f4-iconbtn--ghost:hover{background:var(--petrol-50)}.f4-iconbtn--inverse{color:var(--off-white)}.f4-iconbtn--inverse:hover{background:rgba(248,246,241,.1)}
/* Badge */
.f4-badge{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-sans);font-size:12px;line-height:16px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:var(--radius-pill);white-space:nowrap}
.f4-badge__dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.f4-badge--neutral{background:var(--sand-300);color:var(--graphite-700)}.f4-badge--petrol{background:var(--petrol-100);color:var(--petrol-900)}.f4-badge--copper{background:var(--copper-100);color:var(--copper-700)}
.f4-badge--success{background:var(--success-100);color:#1F5C42}.f4-badge--warning{background:var(--warning-100);color:#7A4C0B}.f4-badge--danger{background:var(--danger-100);color:var(--danger-500)}
.f4-badge--flow{background:var(--flow-100);color:var(--flow-700)}.f4-badge--partners{background:var(--partners-100);color:var(--partners-700)}.f4-badge--solutions{background:var(--solutions-100);color:var(--solutions-700)}.f4-badge--products{background:var(--products-100);color:var(--products-700)}
/* Chip */
.f4-chip{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-sans);font-size:14px;line-height:20px;font-weight:500;color:var(--graphite-700);background:var(--white);border:1.5px solid var(--border-default);border-radius:var(--radius-pill);padding:8px 16px;min-height:40px;cursor:pointer;transition:all var(--dur-2) var(--ease-out)}
.f4-chip:hover{border-color:var(--petrol-900);color:var(--petrol-900)}
.f4-chip--selected{background:var(--petrol-900);border-color:var(--petrol-900);color:var(--white)}.f4-chip--selected:hover{color:var(--white)}
.f4-chip--static{cursor:default}.f4-chip--static:hover{border-color:var(--border-default);color:var(--graphite-700)}
.f4-chip--inverse{background:transparent;color:var(--off-white);border-color:rgba(248,246,241,.28)}.f4-chip--inverse:hover{border-color:var(--off-white);color:var(--off-white)}
/* Card */
.f4-card{position:relative;display:flex;flex-direction:column;gap:16px;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:32px;color:var(--text-body);font-family:var(--font-sans);text-decoration:none;overflow:hidden;transition:border-color var(--dur-2) var(--ease-out),box-shadow var(--dur-2) var(--ease-out),transform var(--dur-2) var(--ease-out)}
.f4-card--sand{background:var(--sand-300);border-color:transparent}.f4-card--petrol{background:var(--petrol-900);border-color:transparent;color:var(--text-on-inverse)}
.f4-card--compact{padding:24px;gap:12px}
.f4-card--link{cursor:pointer}.f4-card--link:hover{border-color:var(--petrol-400);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.f4-card__accent{position:absolute;left:0;right:0;top:0;height:4px}
/* Forms */
.f4-field{display:flex;flex-direction:column;gap:8px;font-family:var(--font-sans)}
.f4-label{font-size:14px;line-height:20px;font-weight:600;color:var(--text-strong)}.f4-label__opt{font-weight:400;color:var(--text-muted)}
.f4-hint{font-size:14px;line-height:20px;color:var(--text-muted)}.f4-hint--error{color:var(--danger-500)}
.f4-input,.f4-textarea,.f4-select{width:100%;font-family:var(--font-sans);font-size:16px;line-height:24px;color:var(--text-strong);background:var(--white);border:1.5px solid var(--border-default);border-radius:var(--radius-md);padding:11px 16px;min-height:48px;transition:border-color var(--dur-1),box-shadow var(--dur-1);outline:none}
.f4-input::placeholder,.f4-textarea::placeholder{color:var(--graphite-400)}
.f4-input:hover,.f4-textarea:hover,.f4-select:hover{border-color:var(--graphite-400)}
.f4-input:focus,.f4-textarea:focus,.f4-select:focus{border-color:var(--petrol-900);box-shadow:0 0 0 3px var(--petrol-100)}
.f4-input--error,.f4-input--error:hover{border-color:var(--danger-500)}
.f4-input:disabled,.f4-textarea:disabled,.f4-select:disabled{background:var(--sand-100);color:var(--graphite-400);cursor:not-allowed}
.f4-textarea{resize:vertical;min-height:128px}
.f4-select-wrap{position:relative}.f4-select{appearance:none;padding-right:44px;cursor:pointer}.f4-select-wrap .f4-icon{position:absolute;right:16px;top:50%;margin-top:-9px;pointer-events:none;color:var(--graphite-600)}
.f4-check{display:inline-flex;align-items:flex-start;gap:12px;font-family:var(--font-sans);font-size:16px;line-height:24px;color:var(--text-body);cursor:pointer;min-height:24px}
.f4-check input{position:absolute;opacity:0;width:1px;height:1px}
.f4-check__box{flex-shrink:0;width:22px;height:22px;margin-top:1px;border:1.5px solid var(--graphite-400);border-radius:var(--radius-sm);background:var(--white);display:inline-flex;align-items:center;justify-content:center;color:var(--white);transition:all var(--dur-1)}
.f4-check--radio .f4-check__box{border-radius:50%}
.f4-check input:checked+.f4-check__box{background:var(--petrol-900);border-color:var(--petrol-900)}
.f4-check input:focus-visible+.f4-check__box{outline:2px solid var(--focus-ring);outline-offset:2px}
.f4-check__dot{width:8px;height:8px;border-radius:50%;background:var(--white)}
.f4-check--disabled{opacity:.45;cursor:not-allowed}
.f4-switch{display:inline-flex;align-items:center;gap:12px;font-family:var(--font-sans);font-size:16px;line-height:24px;color:var(--text-body);cursor:pointer}
.f4-switch input{position:absolute;opacity:0;width:1px;height:1px}
.f4-switch__track{position:relative;width:44px;height:24px;border-radius:12px;background:var(--graphite-300);transition:background var(--dur-2) var(--ease-out);flex-shrink:0}
.f4-switch__thumb{position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:var(--white);box-shadow:var(--shadow-1);transition:transform var(--dur-2) var(--ease-out)}
.f4-switch input:checked+.f4-switch__track{background:var(--petrol-900)}.f4-switch input:checked+.f4-switch__track .f4-switch__thumb{transform:translateX(20px)}
.f4-switch input:focus-visible+.f4-switch__track{outline:2px solid var(--focus-ring);outline-offset:2px}
/* Tabs */
.f4-tabs{display:flex;gap:32px;overflow-x:auto;scrollbar-width:none;border-bottom:1px solid var(--border-default);font-family:var(--font-sans)}
.f4-tab{position:relative;white-space:nowrap;flex-shrink:0;background:none;border:0;padding:12px 0 14px;font-family:inherit;font-size:16px;line-height:24px;font-weight:500;color:var(--text-muted);cursor:pointer;transition:color var(--dur-2)}
.f4-tab:hover{color:var(--petrol-900)}.f4-tab--active{color:var(--petrol-900);font-weight:600}
.f4-tab--active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--copper-500)}
.f4-tabs--inverse{border-color:var(--border-inverse)}.f4-tabs--inverse .f4-tab{color:var(--petrol-200)}.f4-tabs--inverse .f4-tab--active,.f4-tabs--inverse .f4-tab:hover{color:var(--off-white)}
/* Breadcrumbs */
.f4-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-sans);font-size:14px;line-height:22px;color:var(--text-muted);list-style:none;margin:0;padding:0}
.f4-crumbs li{white-space:nowrap}.f4-crumbs a{color:var(--text-muted);text-decoration:none}.f4-crumbs a:hover{color:var(--petrol-900);text-decoration:underline;text-underline-offset:3px}
.f4-crumbs [aria-current]{color:var(--text-strong);font-weight:500}
.f4-crumbs--inverse,.f4-crumbs--inverse a{color:var(--petrol-200)}.f4-crumbs--inverse [aria-current]{color:var(--off-white)}
/* Dialog */
.f4-overlay{position:fixed;inset:0;background:var(--overlay);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:1000;animation:f4-fade var(--dur-2) var(--ease-out)}
.f4-dialog{position:relative;width:100%;max-width:560px;background:var(--white);border-radius:var(--radius-xl);box-shadow:var(--shadow-3);padding:40px;font-family:var(--font-sans);color:var(--text-body);animation:f4-rise var(--dur-3) var(--ease-out)}
.f4-dialog__close{position:absolute;top:16px;right:16px}
.f4-dialog__title{margin:0 0 12px;font-size:24px;line-height:32px;font-weight:700;color:var(--text-strong);letter-spacing:var(--tracking-heading)}
.f4-dialog__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
@keyframes f4-fade{from{opacity:0}to{opacity:1}}@keyframes f4-rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
/* Toast */
.f4-toast{display:flex;align-items:flex-start;gap:12px;min-width:300px;max-width:440px;background:var(--petrol-950);color:var(--off-white);border-radius:var(--radius-md);padding:16px 16px 16px 20px;box-shadow:var(--shadow-3);font-family:var(--font-sans);font-size:14px;line-height:22px;animation:f4-rise var(--dur-3) var(--ease-out)}
.f4-toast__title{font-weight:600;font-size:15px}.f4-toast__body{color:var(--petrol-200)}
.f4-toast--success .f4-toast__icon{color:#8FD1B0}.f4-toast--danger .f4-toast__icon{color:#F2A9A3}.f4-toast--info .f4-toast__icon{color:var(--copper-200)}
/* Tooltip */
.f4-tip{position:relative;display:inline-flex}
.f4-tip__bubble{position:absolute;left:50%;bottom:calc(100% + 8px);transform:translate(-50%,4px);background:var(--graphite-900);color:var(--off-white);font-family:var(--font-sans);font-size:14px;line-height:20px;font-weight:500;padding:6px 10px;border-radius:var(--radius-sm);white-space:nowrap;pointer-events:none;opacity:0;transition:opacity var(--dur-1),transform var(--dur-1) var(--ease-out);z-index:50}
.f4-tip:hover .f4-tip__bubble,.f4-tip:focus-within .f4-tip__bubble,.f4-tip--open .f4-tip__bubble{opacity:1;transform:translate(-50%,0)}
.f4-tip--bottom .f4-tip__bubble{bottom:auto;top:calc(100% + 8px)}
/* Brand */
.f4-wordmark{display:inline-flex;flex-direction:column;gap:2px;font-family:var(--font-sans);color:var(--graphite-900);text-decoration:none;line-height:1}
.f4-wordmark__name{font-weight:700;letter-spacing:-.01em;white-space:nowrap}.f4-wordmark__desc{font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--petrol-900);white-space:nowrap}
.f4-wordmark--light{color:var(--off-white)}.f4-wordmark--light .f4-wordmark__desc{color:var(--petrol-200)}
.f4-eyebrow{display:inline-flex;white-space:nowrap;align-items:center;gap:10px;font-family:var(--font-sans);font-size:var(--eyebrow-size);line-height:var(--eyebrow-lh);font-weight:600;letter-spacing:var(--eyebrow-tracking);text-transform:uppercase;color:var(--petrol-900)}
.f4-eyebrow__rule{width:24px;height:2px;background:var(--copper-500)}
.f4-eyebrow--inverse{color:var(--petrol-200)}
.f4-steps{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:0;font-family:var(--font-sans);list-style:none;margin:0;padding:0}
.f4-steps--vertical{grid-template-columns:1fr}
.f4-step{position:relative;display:flex;flex-direction:column;gap:8px;text-align:left;background:none;border:0;border-top:2px solid var(--border-default);padding:16px 16px 8px 0;cursor:pointer;font-family:inherit;color:var(--text-muted);transition:border-color var(--dur-2) var(--ease-out),color var(--dur-2)}
.f4-step:hover{color:var(--petrol-900);border-top-color:var(--petrol-400)}
.f4-step__num{font-size:14px;line-height:20px;font-weight:600;letter-spacing:.04em}
.f4-step__label{font-size:16px;line-height:24px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.f4-step--done{border-top-color:var(--petrol-900);color:var(--graphite-700)}
.f4-step--active{border-top-color:var(--copper-500);color:var(--petrol-900)}.f4-step--active .f4-step__num{color:var(--copper-700)}
.f4-steps--inverse .f4-step{border-top-color:var(--border-inverse);color:var(--petrol-400)}.f4-steps--inverse .f4-step:hover,.f4-steps--inverse .f4-step--done{color:var(--petrol-200);border-top-color:var(--petrol-200)}.f4-steps--inverse .f4-step--active{border-top-color:var(--copper-500);color:var(--off-white)}.f4-steps--inverse .f4-step--active .f4-step__num{color:var(--copper-200)}
.f4-steps--vertical .f4-step{border-top:0;border-left:2px solid var(--border-default);padding:12px 0 12px 20px;flex-direction:row;align-items:baseline;gap:16px}
.f4-steps--vertical .f4-step--active{border-left-color:var(--copper-500)}.f4-steps--vertical .f4-step--done{border-left-color:var(--petrol-900)}
.f4-hub{gap:20px}.f4-hub__icon{width:48px;height:48px;border-radius:var(--radius-md);display:inline-flex;align-items:center;justify-content:center}
.f4-hub__name{margin:0;font-size:24px;line-height:32px;font-weight:700;color:var(--text-strong);letter-spacing:var(--tracking-heading)}
.f4-hub__tag{margin:0;font-size:16px;line-height:26px;color:var(--text-body)}
.f4-hub__more{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;line-height:20px;font-weight:600}
.f4-msg{display:flex;flex-direction:column;gap:10px;max-width:86%;font-family:var(--font-sans)}
.f4-msg--user{align-self:flex-end;align-items:flex-end}
.f4-msg__who{display:flex;align-items:center;gap:8px;font-size:12px;line-height:16px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--petrol-900)}
.f4-msg__avatar{width:24px;height:24px;border-radius:50%;background:var(--petrol-900);color:var(--off-white);display:inline-flex;align-items:center;justify-content:center;font-size:10px;letter-spacing:0}
.f4-msg__bubble{font-size:15px;line-height:24px;padding:12px 16px;border-radius:4px 16px 16px 16px;background:var(--white);border:1px solid var(--border-subtle);color:var(--text-body)}
.f4-msg--user .f4-msg__bubble{background:var(--petrol-900);border-color:var(--petrol-900);color:var(--off-white);border-radius:16px 4px 16px 16px}
.f4-msg__opts{display:flex;flex-wrap:wrap;gap:8px}

/* IMPL QA-001: ícones Lucide via sprite SVG local (same-origin) em vez de máscara CSS servida pelo unpkg. */
.f4-icon{display:inline-block;flex-shrink:0;width:20px;height:20px;vertical-align:middle;stroke:currentColor}
.f4-icon--16{width:16px;height:16px}.f4-icon--18{width:18px;height:18px}.f4-icon--22{width:22px;height:22px}.f4-icon--24{width:24px;height:24px}.f4-icon--32{width:32px;height:32px}

/* IMPL QA-005: ajustes de contraste (WCAG 2.2 AA), sem alterar a paleta. */
.f4-input,.f4-textarea,.f4-select{border-color:var(--graphite-400)}           /* 1.4.11: borda de controle 3.39:1 (sand-500 dava 1.75:1) */
.f4-input::placeholder,.f4-textarea::placeholder{color:var(--graphite-500)}  /* 1.4.3: placeholder 5.9:1 (graphite-400 dava 3.39:1) */
.f4-steps--inverse .f4-step{color:var(--petrol-200)}                        /* 1.4.3: etapa inativa no fundo petróleo 7.47:1 (petrol-400 dava 4.17:1) */
.bg-sand300 .muted{color:var(--graphite-700)}                                /* 1.4.3: muted sobre sand-300 (graphite-500 dava 4.48:1) */

/* Base */
*,*:before,*:after{box-sizing:border-box}
[hidden]{display:none!important} /* IMPL QA-007: hidden perdia para display:grid/flex das classes de layout */
html{-webkit-text-size-adjust:100%;scroll-padding-top:96px}
body{margin:0;background:var(--bg-page);color:var(--text-body);font-family:var(--font-sans);font-size:var(--body-size);line-height:var(--body-lh);overflow-x:clip}
img,svg{max-width:100%}
a{color:var(--petrol-900);text-underline-offset:3px}a:hover{color:var(--copper-700)}
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--focus-ring);outline-offset:3px}
.skip{position:absolute;left:16px;top:-80px;z-index:2000;background:var(--petrol-900);color:var(--white);padding:12px 16px;border-radius:var(--radius-md);font-weight:600;text-decoration:none}
.skip:focus{top:12px;color:var(--white)}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
h1,h2,h3,h4{margin:0;color:var(--text-strong);text-wrap:balance}
p{margin:0;text-wrap:pretty}
.h1{font-size:var(--h1-size);line-height:var(--h1-lh);font-weight:700;letter-spacing:var(--tracking-display)}
.h2{font-size:var(--h2-size);line-height:var(--h2-lh);font-weight:700;letter-spacing:var(--tracking-display)}
.h3{font-size:var(--h3-size);line-height:var(--h3-lh);font-weight:700;letter-spacing:var(--tracking-heading)}
.h4{font-size:var(--h4-size);line-height:var(--h4-lh);font-weight:600}
.lead{font-size:var(--body-lg-size);line-height:var(--body-lg-lh)}
.small{font-size:var(--small-size);line-height:var(--small-lh)}
.strong{color:var(--text-strong);font-weight:600}.brand{color:var(--petrol-900)}.muted{color:var(--text-muted)}
.inv{color:var(--off-white)}.inv-muted{color:var(--petrol-200)}.inv-accent{color:var(--copper-200)}
.label-up{font-size:13px;line-height:20px;letter-spacing:.14em;text-transform:uppercase;font-weight:600}

/* Layout */
.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--section-y) 0}.section--md{padding:64px 0}.section--sm{padding:40px 0}
.bg-petrol{background:var(--petrol-900);color:var(--off-white)}.bg-petrol950{background:var(--petrol-950);color:var(--off-white)}
.bg-sand100{background:var(--sand-100)}.bg-sand300{background:var(--sand-300)}.bg-white{background:var(--white)}
.bg-petrol h1,.bg-petrol h2,.bg-petrol h3,.bg-petrol950 h1,.bg-petrol950 h2,.bg-petrol950 h3{color:var(--off-white)}
.stack{display:grid;gap:24px;align-content:start}.stack-sm{display:grid;gap:12px;align-content:start}.stack-lg{display:grid;gap:32px;align-content:start}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:64px}
.grid-hero{display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:center}
.grid-split{display:grid;grid-template-columns:1.2fr 1fr;gap:64px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.cards-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.row{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.proof{display:flex;flex-wrap:wrap;gap:8px 12px;font-size:14px;font-weight:500;color:var(--text-muted)}
.maxw-720{max-width:720px}.maxw-820{max-width:820px}.maxw-900{max-width:900px}
.mt-48{margin-top:48px}.mb-48{margin-bottom:48px}.mt-24{margin-top:24px}
.stat{border-top:2px solid var(--petrol-900);padding-top:16px}.stat__n{font-size:48px;line-height:54px;font-weight:700;color:var(--petrol-900);letter-spacing:-.02em}
.photo{border-radius:var(--radius-lg);background:repeating-linear-gradient(135deg,var(--sand-300) 0 14px,var(--sand-400) 14px 15px);display:flex;align-items:flex-end;padding:20px;min-height:320px}
.photo--tall{min-height:520px}
.photo span{display:inline-flex;align-items:center;gap:8px;background:rgba(248,246,241,.92);border-radius:4px;padding:6px 10px;font-size:12px;line-height:16px;font-weight:500;color:var(--graphite-600)}
.list-check{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.list-check li{display:flex;gap:12px;align-items:flex-start}.list-check .f4-icon{margin-top:3px;color:var(--petrol-900)}
.prose{max-width:760px}.prose h2{font-size:var(--h4-size);line-height:var(--h4-lh);margin:40px 0 12px}.prose h3{font-size:18px;line-height:28px;margin:24px 0 8px}
.prose p,.prose li{font-size:16px;line-height:26px}.prose p+p{margin-top:12px}.prose ul{padding-left:22px}
.prose table{width:100%;border-collapse:collapse;font-size:14px;line-height:22px;margin:16px 0;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--border-subtle);padding:8px 10px;text-align:left;vertical-align:top}.prose th{background:var(--sand-100)}
.notice{display:flex;gap:12px;background:var(--warning-100);color:#5C3A08;border-radius:var(--radius-md);padding:14px 16px;font-size:14px;line-height:22px}
.f4-card .card-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600}
a.f4-card{color:var(--text-body)}a.f4-card:hover{color:var(--text-body)}
.front-flow{--front:var(--flow-500);--front-700:var(--flow-700);--front-100:var(--flow-100)}
.front-partners{--front:var(--partners-500);--front-700:var(--partners-700);--front-100:var(--partners-100)}
.front-solutions{--front:var(--solutions-500);--front-700:var(--solutions-700);--front-100:var(--solutions-100)}
.front-products{--front:var(--products-500);--front-700:var(--products-700);--front-100:var(--products-100)}
.f4-card__accent{background:var(--front,var(--petrol-900))}
.f4-hub__icon{background:var(--front-100);color:var(--front-700)}.f4-hub__more{color:var(--front-700)}
.front-bar{border-top:6px solid var(--front-100)}
.front-label{color:var(--front-700)}

/* IMPL QA-010: proporções de coluna como classes (estilo inline vencia a media query no celular). */
@media (min-width:861px){.cols-proof{grid-template-columns:1.3fr 1fr 1fr;align-items:end;gap:32px}.cols-contact{grid-template-columns:1fr 1.25fr;gap:72px;align-items:start}.cols-1-12{grid-template-columns:1fr 1.2fr}.cols-1-14{grid-template-columns:1fr 1.4fr}}
.cols-contact{align-items:start}

/* Header */
/* IMPL QA-009: o blur fica num pseudo-elemento; no próprio header ele criava bloco de contenção e cortava o menu mobile (position:fixed). */
.site-header{position:sticky;top:0;z-index:100;border-bottom:1px solid var(--border-subtle);isolation:isolate}
.site-header:before{content:"";position:absolute;inset:0;z-index:-1;background:rgba(248,246,241,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.site-header__in{display:flex;align-items:center;height:80px;gap:clamp(16px,3vw,40px)}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--graphite-900);flex-shrink:0}
.logo:hover{color:var(--graphite-900)}
/* Logo v0 (06/10/2026): lockup em SVG com nome em contornos. Mínimo 120 px; descritor só a partir de 240 px. */
.logo__img{display:block;height:40px;width:auto;min-width:120px}
.logo__img--desc{height:auto;width:260px;max-width:100%}
.logo--light{color:var(--off-white)}.logo--light:hover{color:var(--off-white)}
.nav{margin-left:auto}
.nav ul{display:flex;gap:clamp(14px,2vw,28px);list-style:none;margin:0;padding:0}
.nav a{display:inline-block;font-size:15px;line-height:22px;font-weight:500;color:var(--text-strong);text-decoration:none;padding:6px 0;white-space:nowrap;border-bottom:2px solid transparent}
.nav a:hover{color:var(--petrol-900)}
.nav a[aria-current]{font-weight:600;color:var(--petrol-900);border-bottom-color:var(--copper-500)}
.menu-btn{display:none;margin-left:auto}
.header-cta{flex-shrink:0}

/* Footer */
.site-footer{background:var(--petrol-950);color:var(--off-white);padding:80px 0 40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-col{display:grid;gap:10px;align-content:start}
.footer-col h2{font-size:13px;line-height:20px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--petrol-200)}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a,.footer-col button.linklike{color:var(--off-white);font-size:15px;line-height:22px;text-decoration:none}
.footer-col a:hover,.footer-col button.linklike:hover{color:var(--copper-200);text-decoration:underline}
button.linklike{background:none;border:0;padding:0;font:inherit;cursor:pointer;text-align:left}
.footer-legal{margin-top:64px;padding-top:24px;border-top:1px solid var(--border-inverse);display:grid;gap:6px;font-size:13px;line-height:20px;color:var(--petrol-200)}
.footer-legal .links{display:flex;flex-wrap:wrap;gap:8px 20px}
.footer-legal a,.footer-legal button.linklike{color:var(--petrol-200);font-size:13px}.footer-legal a:hover,.footer-legal button.linklike:hover{color:var(--off-white)}

/* Hub tabs (navegação entre frentes, links reais) */
.f4-tabs a.f4-tab{text-decoration:none}

/* Method nav (etapa anterior/próxima) */
.step-nav{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.f4-steps a.f4-step{text-decoration:none}

/* Conversar */
.flow-steps{display:flex;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;list-style:none;margin:0;padding:0}
.flow-steps li{flex:1;padding-top:10px;border-top:2px solid var(--border-default);color:var(--text-muted)}
.flow-steps li.is-done{border-top-color:var(--petrol-900);color:var(--petrol-900)}
.flow-steps li[aria-current]{border-top-color:var(--copper-500);color:var(--petrol-900)}
.form-card{padding:40px;gap:24px}
.fields-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.channel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.channel{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;font:inherit;background:var(--white);border:1.5px solid var(--graphite-400);border-radius:var(--radius-md);padding:16px;cursor:pointer;color:var(--text-body);text-decoration:none;min-height:var(--tap-min)}
.channel:hover{border-color:var(--petrol-900);color:var(--text-body)}
.channel b{display:block;color:var(--text-strong)}.channel .f4-icon{color:var(--petrol-900);margin-top:2px}
.calendly-box{min-height:700px;border:1px solid var(--border-subtle);border-radius:var(--radius-lg);overflow:hidden;background:var(--white)}
.req{color:var(--danger-500)}
.form-error{color:var(--danger-500);font-size:14px;line-height:20px}

/* FSiA */
.fsia{position:fixed;right:24px;bottom:24px;z-index:900;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.fsia__launcher{display:inline-flex;align-items:center;gap:10px;height:56px;white-space:nowrap;padding:0 22px 0 18px;border-radius:var(--radius-pill);border:0;background:var(--petrol-900);color:var(--off-white);font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;box-shadow:var(--shadow-2)}
.fsia__launcher:hover{background:var(--petrol-800)}
.fsia__panel{width:380px;height:min(560px,calc(100vh - 112px));background:var(--sand-100);border-radius:var(--radius-xl);box-shadow:var(--shadow-3);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--border-subtle)}
.fsia__panel[hidden]{display:none}
.fsia__head{background:var(--petrol-900);color:var(--off-white);padding:14px 10px 14px 20px;display:flex;align-items:center;gap:12px}
.fsia__head b{font-size:16px}.fsia__head .small{color:var(--petrol-200)}
.fsia__log{flex:1;overflow:auto;padding:20px;display:flex;flex-direction:column;gap:16px;overscroll-behavior:contain}
.fsia__form{padding:12px;border-top:1px solid var(--border-subtle);background:var(--white);display:flex;gap:8px;align-items:center}
.fsia__form .f4-input{min-height:44px;padding:9px 14px}
.fsia__note{padding:6px 14px 10px;background:var(--white);font-size:12px;line-height:18px;color:var(--text-muted)}
.f4-msg__bubble a{color:inherit;font-weight:600}
.f4-msg__opts .f4-chip{min-height:44px}

/* Consentimento */
.consent{position:fixed;left:24px;bottom:24px;z-index:950;max-width:520px;background:var(--white);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-3);padding:24px;display:grid;gap:16px}
.consent[hidden]{display:none}
.consent .row{gap:12px}
.consent .f4-btn{flex:1 1 auto}

/* Dialog nativo */
dialog.f4-dialog{border:0;padding:40px}
dialog.f4-dialog::backdrop{background:var(--overlay);backdrop-filter:blur(2px)}

/* Responsivo */
@media (max-width:1100px){
  .nav{display:none}
  .menu-btn{display:inline-flex}
  .header-cta{margin-left:0}
  .nav.is-open{display:block;position:fixed;left:0;right:0;top:80px;bottom:0;background:var(--off-white);padding:24px var(--margin-mobile);overflow:auto;z-index:99}
  .nav.is-open ul{flex-direction:column;gap:4px}
  .nav.is-open a{display:block;font-size:20px;line-height:28px;padding:14px 0;border-bottom:1px solid var(--border-subtle)}
  .nav.is-open a[aria-current]{border-bottom-color:var(--copper-500)}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  :root{--h1-size:var(--h1-size-mobile);--h1-lh:var(--h1-lh-mobile);--h2-size:var(--h2-size-mobile);--h2-lh:var(--h2-lh-mobile);--h3-size:26px;--h3-lh:34px;--body-lg-size:18px;--body-lg-lh:28px}
  .container{padding:0 var(--margin-mobile)}
  .section{padding:var(--section-y-mobile) 0}.section--md{padding:44px 0}.section--sm{padding:28px 0}
  .grid-2,.grid-hero,.grid-split,.grid-3{grid-template-columns:1fr;gap:32px}
  .photo--tall{min-height:320px}
  .f4-steps{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:8px}
  .form-card{padding:24px}
  .fields-2,.channel-grid,.cards-2{grid-template-columns:1fr}
  .stat__n{font-size:40px;line-height:46px}
  .header-cta{display:none}
}
@media (max-width:560px){
  .grid-4,.footer-grid{grid-template-columns:1fr}
  .f4-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fsia{right:16px;bottom:16px}
  .fsia__launcher{height:52px;padding:0 18px 0 14px}
  .fsia.is-open .fsia__launcher{display:none}
  .fsia.is-open{left:0;right:0;top:0;bottom:0;gap:0}
  .fsia__panel{position:fixed;left:0;top:0;width:100%;height:var(--fsia-vh,100dvh);border-radius:0;border:0}
  .consent{left:12px;right:12px;bottom:12px;padding:20px}
  .f4-btn--lg{white-space:normal;text-align:center}
  .f4-btn{white-space:normal}
  dialog.f4-dialog{padding:28px 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*:before,*:after{animation-duration:0ms!important;transition-duration:0ms!important;scroll-behavior:auto!important}
}

/* IMPL QA-006: overflow horizontal em 390px — itens de grid/stack herdavam min-width:auto
   e eyebrow/trilha/abas com nowrap empurravam a largura. */
.stack>*,.stack-sm>*,.stack-lg>*,.grid-2>*,.grid-3>*,.grid-4>*,.grid-hero>*,.grid-split>*,.cards-2>*,.footer-grid>*{min-width:0}
.f4-tabs{max-width:100%}
@media (max-width:560px){.f4-eyebrow{white-space:normal;align-items:flex-start}.f4-eyebrow__rule{margin-top:9px;flex-shrink:0}.f4-crumbs li{white-space:normal}}
/* IMPL QA-008: no celular o botão flutuante da FSiA não pode esconder o fim da página. */
@media (max-width:560px){body{padding-bottom:84px}.fsia__launcher{font-size:14px}}
.f4-badge{justify-self:start;align-self:flex-start;width:max-content;max-width:100%}
/* Arte de marca no lugar das fotos (12/10/2026, até haver fotos reais) */
.art{border-radius:var(--radius-lg);overflow:hidden;display:block;width:100%}
.art svg{display:block;width:100%;height:100%}
.art--tall{min-height:520px}
.art--tall svg{min-height:520px}
@media (max-width:900px){.art--tall,.art--tall svg{min-height:320px}}
/* Faixa de prova compacta (12/10/2026) */
.proof-band .cols-proof{align-items:center;gap:24px}
.proof-band .stat{padding-top:8px}
.proof-band .stat__n{font-size:32px;line-height:38px}
.proof-band .stat p{margin:2px 0 0}
@media (max-width:860px){.proof-band .cols-proof{grid-template-columns:1fr 1fr;gap:16px}.proof-band h2{grid-column:1/-1}.proof-band .stat__n{font-size:28px;line-height:34px}}
.proof-band .cols-proof{align-items:start}
.proof-band h2{align-self:center}
.proof-band .stat{display:flex;align-items:center;gap:14px;padding-top:12px}
.proof-band .stat__n{white-space:nowrap}
.proof-band .stat p{margin:0;max-width:22ch}