@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/plex-0.ttf) format('truetype');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/plex-1.ttf) format('truetype');
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 400;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/plex-2.ttf) format('truetype');
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 500;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/plex-3.ttf) format('truetype');
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 600;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/plex-4.ttf) format('truetype');
}

/* Design system supplied in survey-app-figma. */
:root, [data-theme="light"]{--surface:#f5f6f8;--surface-raised:#ffffff;--surface-sunken:#eceff3;--line:#d8dde4;--line-strong:#7a8494;--ink:#18212e;--ink-muted:#4f5a6a;--brand:#1f4e8c;--brand-hover:#173d6e;--brand-soft:#e5edf7;--on-brand:#ffffff;--link:var(--brand);--nav-bg:#14213a;--nav-ink:#b9c4d4;--nav-active-bg:#24385c;--nav-ink-active:#ffffff;--success:#1c6b3a;--success-soft:#e2f0e6;--warning:#855400;--warning-soft:#f9eed6;--danger:#b3261e;--danger-soft:#fbe6e4;--scrim:#0b111b8c;--shadow-sm:0 1px 2px #18212e14;--shadow-lg:0 8px 24px #18212e29;--focus-ring:0 0 0 2px #ffffff, 0 0 0 4px #1f4e8c;}
[data-theme="dark"]{--surface:#10161f;--surface-raised:#171f2b;--surface-sunken:#1e2835;--line:#2b3646;--line-strong:#6b778a;--ink:#e5eaf1;--ink-muted:#a1acbc;--brand:#7fabe8;--brand-hover:#a3c3ef;--brand-soft:#182a45;--on-brand:#0c1726;--link:var(--brand);--nav-bg:#0a0f17;--nav-ink:#9aa6b8;--nav-active-bg:#1b2b45;--nav-ink-active:#ffffff;--success:#6ccf8e;--success-soft:#11301d;--warning:#e6b450;--warning-soft:#382a0b;--danger:#f28b82;--danger-soft:#3c1512;--scrim:#000000b3;--shadow-sm:0 1px 2px #00000080;--shadow-lg:0 8px 24px #000000b3;--focus-ring:0 0 0 2px #171f2b, 0 0 0 4px #7fabe8;}
:root{--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--radius-sm:3px;--radius-md:4px;--radius-lg:6px;--radius-full:9999px;--control-sm:28px;--control-md:36px;--row-md:40px;--topbar-h:56px;--sidebar-w:232px;--font-sans:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--font-mono:"IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;}

/* Survey App — componentes em CSS puro para templates htmx. Prefixo: sa- */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-family: var(--font-sans); font-size: 14px; line-height: 20px; color: var(--ink); background: var(--surface); }
:focus-visible { outline: 2px solid transparent; box-shadow: var(--focus-ring); }
.sa-link { color: var(--link); text-decoration: underline; text-underline-offset: 2px; }
.sa-num { font-family: var(--font-mono); font-size: 13px; font-variant-numeric: tabular-nums; }
.sa-muted { color: var(--ink-muted); }
.sa-row { display: flex; gap: var(--space-2); align-items: center; flex-wrap: wrap; }
.sa-stack { display: grid; gap: var(--space-4); }
.sa-demo { padding: var(--space-4); }

/* Button */
.sa-btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); height: var(--control-md); padding: 0 var(--space-4); font: inherit; font-weight: 500; border-radius: var(--radius-md); border: 1px solid var(--line-strong); background: var(--surface-raised); color: var(--ink); cursor: pointer; text-decoration: none; white-space: nowrap; }
.sa-btn:hover { background: var(--surface-sunken); }
.sa-btn--primary { background: var(--brand); border-color: var(--brand); color: var(--on-brand); }
.sa-btn--primary:hover { background: var(--brand-hover); border-color: var(--brand-hover); }
.sa-btn--danger { border-color: var(--danger); color: var(--danger); }
.sa-btn--danger:hover { background: var(--danger-soft); }
.sa-btn--danger-solid { background: var(--danger); border-color: var(--danger); color: var(--surface-raised); }
.sa-btn--danger-solid:hover { filter: brightness(.92); }
.sa-btn--ghost { border-color: transparent; background: transparent; color: var(--brand); }
.sa-btn--ghost:hover { background: var(--brand-soft); }
.sa-btn--sm { height: var(--control-sm); padding: 0 var(--space-3); font-size: 13px; }
.sa-btn--block { width: 100%; }
.sa-btn:disabled, .sa-btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
.sa-spinner { display: none; width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: var(--radius-full); animation: sa-spin .8s linear infinite; }
.htmx-request .sa-spinner, .htmx-request.sa-spinner, .is-loading .sa-spinner { display: inline-block; }
.htmx-request.sa-btn, .htmx-request .sa-btn[type="submit"] { opacity: .8; pointer-events: none; }
@keyframes sa-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .sa-spinner { animation-duration: 2.4s; } }

/* Field */
.sa-field { display: flex; flex-direction: column; gap: var(--space-1); min-width: 0; }
.sa-label { font-size: 13px; line-height: 18px; font-weight: 500; color: var(--ink); }
.sa-label .sa-req { color: var(--danger); margin-left: 2px; }
.sa-hint { font-size: 12px; line-height: 16px; color: var(--ink-muted); }
.sa-error { font-size: 12px; line-height: 16px; color: var(--danger); font-weight: 500; }
.sa-input, .sa-select { height: var(--control-md); width: 100%; padding: 0 var(--space-3); font: inherit; color: var(--ink); background: var(--surface-raised); border: 1px solid var(--line-strong); border-radius: var(--radius-md); }
.sa-input::placeholder { color: var(--ink-muted); }
.sa-input:disabled, .sa-select:disabled { background: var(--surface-sunken); color: var(--ink-muted); }
.sa-field--error .sa-input, .sa-field--error .sa-select, .sa-input[aria-invalid="true"] { border-color: var(--danger); }
.sa-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
.sa-form-grid .sa-span-2 { grid-column: span 2; }

/* Badge */
.sa-badge { display: inline-flex; align-items: center; gap: 6px; height: 22px; padding: 0 var(--space-2); font-size: 12px; line-height: 16px; font-weight: 500; border-radius: var(--radius-sm); background: var(--surface-sunken); color: var(--ink); border: 1px solid var(--line); white-space: nowrap; }
.sa-badge--dot::before { content: ""; width: 6px; height: 6px; border-radius: var(--radius-full); background: currentColor; }
.sa-badge--success { background: var(--success-soft); color: var(--success); border-color: transparent; }
.sa-badge--warning { background: var(--warning-soft); color: var(--warning); border-color: transparent; }
.sa-badge--danger { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.sa-badge--brand { background: var(--brand-soft); color: var(--brand); border-color: transparent; }

/* Alert */
.sa-alert { display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-3) var(--space-4); border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface-raised); color: var(--ink); }
.sa-alert__body { flex: 1; min-width: 0; }
.sa-alert__title { font-weight: 600; }
.sa-alert__tag { font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.sa-alert--success { background: var(--success-soft); border-color: var(--success); }
.sa-alert--success .sa-alert__tag { color: var(--success); }
.sa-alert--warning { background: var(--warning-soft); border-color: var(--warning); }
.sa-alert--warning .sa-alert__tag { color: var(--warning); }
.sa-alert--danger { background: var(--danger-soft); border-color: var(--danger); }
.sa-alert--danger .sa-alert__tag { color: var(--danger); }
.sa-toasts { position: fixed; right: var(--space-6); bottom: var(--space-6); display: grid; gap: var(--space-2); width: 360px; z-index: 50; }
.sa-toasts .sa-alert { box-shadow: var(--shadow-lg); }

/* Table */
.sa-table-wrap { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface-raised); overflow: auto; }
.sa-table { width: 100%; border-collapse: collapse; }
.sa-table th { position: sticky; top: 0; background: var(--surface-sunken); text-align: left; font-size: 12px; line-height: 16px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-muted); padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--line); white-space: nowrap; }
.sa-table th a { color: inherit; text-decoration: none; }
.sa-table th[aria-sort="ascending"] a::after { content: " ↑"; }
.sa-table th[aria-sort="descending"] a::after { content: " ↓"; }
.sa-table td { height: var(--row-md); padding: 0 var(--space-3); border-bottom: 1px solid var(--line); white-space: nowrap; }
.sa-table tbody tr:last-child td { border-bottom: 0; }
.sa-table tbody tr:hover td { background: var(--surface); }
.sa-table tr.is-selected td { background: var(--brand-soft); }
.sa-table .is-num { text-align: right; font-family: var(--font-mono); font-size: 13px; font-variant-numeric: tabular-nums; }
.sa-table .is-mono { font-family: var(--font-mono); font-size: 13px; }
.sa-table .is-actions { text-align: right; width: 1%; }
.sa-table .is-name { font-weight: 600; }
.sa-empty { padding: var(--space-8) var(--space-4); text-align: center; color: var(--ink-muted); }
.sa-empty strong { display: block; color: var(--ink); font-size: 15px; margin-bottom: var(--space-1); }

/* Pager (cursor) */
.sa-pager { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-2) var(--space-3); border-top: 1px solid var(--line); background: var(--surface-raised); font-size: 13px; color: var(--ink-muted); }
.sa-pager .sa-select { width: auto; height: var(--control-sm); }

/* FilterBar */
.sa-filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-3); padding: var(--space-3) var(--space-4); background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.sa-filters .sa-field { width: 176px; }
.sa-filters .sa-field--wide { width: 240px; }
.sa-filters__actions { margin-left: auto; display: flex; gap: var(--space-2); }

/* Tabs */
.sa-tabs { display: flex; gap: var(--space-1); border-bottom: 1px solid var(--line); }
.sa-tab { display: inline-flex; align-items: center; gap: var(--space-2); height: 40px; padding: 0 var(--space-3); margin-bottom: -1px; font: inherit; font-weight: 500; color: var(--ink-muted); background: none; border: 0; border-bottom: 2px solid transparent; cursor: pointer; text-decoration: none; }
.sa-tab:hover { color: var(--ink); }
.sa-tab[aria-selected="true"] { color: var(--brand); border-bottom-color: var(--brand); }
.sa-tab .sa-count { font-family: var(--font-mono); font-size: 12px; color: var(--ink-muted); }

/* StatCard */
.sa-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-4); }
.sa-stat { padding: var(--space-4); background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.sa-stat__label { font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-muted); }
.sa-stat__value { margin-top: var(--space-1); font-family: var(--font-mono); font-size: 28px; line-height: 36px; font-weight: 500; font-variant-numeric: tabular-nums; }
.sa-stat__meta { font-size: 12px; line-height: 16px; color: var(--ink-muted); }

/* Card */
.sa-card { background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.sa-card__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--line); }
.sa-card__title { margin: 0; font-size: 18px; line-height: 26px; font-weight: 600; }
.sa-card__body { padding: var(--space-4); }

/* Modal */
.sa-modal-backdrop { position: fixed; inset: 0; z-index: 40; display: grid; place-items: center; padding: var(--space-4); background: var(--scrim); }
.sa-modal-backdrop.is-inline { position: relative; inset: auto; min-height: 100%; }
.sa-modal { width: 100%; max-width: 520px; background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.sa-modal--sm { max-width: 400px; }
.sa-modal__head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4); border-bottom: 1px solid var(--line); }
.sa-modal__title { margin: 0; font-size: 18px; line-height: 26px; font-weight: 600; }
.sa-modal__body { padding: var(--space-4); display: grid; gap: var(--space-4); }
.sa-modal__foot { display: flex; justify-content: flex-end; gap: var(--space-2); padding: var(--space-3) var(--space-4); border-top: 1px solid var(--line); background: var(--surface-sunken); border-radius: 0 0 var(--radius-lg) var(--radius-lg); }

/* AppShell */
.sa-shell { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr); min-height: 100vh; }
.sa-nav { display: flex; flex-direction: column; gap: 2px; padding: var(--space-4) var(--space-3); background: var(--nav-bg); color: var(--nav-ink); }
.sa-nav__brand { padding: var(--space-1) var(--space-3) var(--space-4); color: var(--nav-ink-active); font-size: 16px; line-height: 24px; font-weight: 600; }
.sa-nav__brand small { display: block; color: var(--nav-ink); font-size: 12px; line-height: 16px; font-weight: 400; }
.sa-nav__section { padding: var(--space-4) var(--space-3) var(--space-1); font-size: 11px; line-height: 16px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--nav-ink); }
.sa-nav__link { display: flex; align-items: center; justify-content: space-between; height: 36px; padding: 0 var(--space-3); border-radius: var(--radius-md); color: var(--nav-ink); text-decoration: none; }
.sa-nav__link:hover { background: var(--nav-active-bg); color: var(--nav-ink-active); }
.sa-nav__link[aria-current="page"] { background: var(--nav-active-bg); color: var(--nav-ink-active); font-weight: 500; }
.sa-nav__foot { margin-top: auto; padding: var(--space-3); border-top: 1px solid var(--nav-active-bg); font-size: 13px; }
.sa-nav__foot strong { display: block; color: var(--nav-ink-active); font-weight: 500; }
.sa-main { display: flex; flex-direction: column; min-width: 0; }
.sa-topbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); height: var(--topbar-h); padding: 0 var(--space-6); background: var(--surface-raised); border-bottom: 1px solid var(--line); }
.sa-breadcrumb { display: flex; gap: var(--space-2); font-size: 13px; color: var(--ink-muted); }
.sa-breadcrumb a { color: var(--link); text-decoration: none; }
.sa-content { display: grid; align-content: start; gap: var(--space-4); padding: var(--space-6); }
.sa-page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-4); }
.sa-page-title { margin: 0; font-size: 24px; line-height: 32px; font-weight: 600; }
.sa-page-sub { margin: 2px 0 0; color: var(--ink-muted); }
.sa-split { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: var(--space-4); align-items: start; }
.sa-dl { display: grid; grid-template-columns: auto 1fr; gap: var(--space-2) var(--space-4); margin: 0; }
.sa-dl dt { color: var(--ink-muted); }
.sa-dl dd { margin: 0; }

/* Login */
.sa-auth { min-height: 100vh; display: grid; place-items: center; padding: var(--space-6); background: var(--surface); }
.sa-auth__card { width: 100%; max-width: 380px; padding: var(--space-8); background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); display: grid; gap: var(--space-4); }
.sa-auth__brand { font-size: 20px; line-height: 28px; font-weight: 600; margin: 0; }