/* Page structure — moved from the approved mockup c-horizonte-do-guaiba:
 * container, centered-split header, sheet menu, footer, section rhythm (zigzag).
 * Added for the inner pages (not in the mockup): .page-head, .crumbs, .layout-aside. */

.wrap, .container { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.wrap--text { max-width: calc(var(--max-text) + 2 * var(--gutter)); }

/* ── Header: centered split ──────────────────────────────────────────── */
.hdr { position: sticky; top: 0; z-index: var(--z-header); background: color-mix(in srgb, var(--color-bg) 94%, transparent); backdrop-filter: saturate(1.1) blur(6px); border-bottom: 1px solid var(--color-line); }
.hdr__in { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: var(--space-5); min-height: var(--header-h); }
.nav { display: flex; gap: clamp(1rem, 2.2vw, 2.25rem); align-items: center; }
.nav--r { justify-content: flex-end; }
.nav a { font-size: .9375rem; text-decoration: none; color: var(--color-ink-2); padding: .75rem 0; min-height: 44px; display: inline-flex; align-items: center; background: linear-gradient(var(--color-ink), var(--color-ink)) left calc(100% - 10px) / 0 1px no-repeat; transition: color .25s, background-size .35s var(--ease); }
.nav a:hover, .nav a:focus-visible { color: var(--color-ink); background-size: 100% 1px; }
.nav a[aria-current] { color: var(--color-ink); background-size: 100% 1px; }
.mark { display: flex; flex-direction: column; align-items: center; text-decoration: none; line-height: 1; gap: .35rem; padding: .5rem; }
.mark__a { font-family: var(--font-display); font-size: 1.9rem; letter-spacing: .005em; }
.mark__b { font-size: .6875rem; letter-spacing: .14em; color: var(--color-ink-2); font-weight: 500; }
.btn-menu { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; padding: 0 1rem; border: 1px solid var(--color-line-strong); border-radius: var(--radius-pill); background: transparent; color: var(--color-ink); font: 500 .875rem/1 var(--font-body); cursor: pointer; transition: background .25s, border-color .25s; }
.btn-menu:hover, .btn-menu:focus-visible { background: var(--color-surface); border-color: var(--color-ink); }
.btn-menu .icon { width: 1.125rem; height: 1.125rem; stroke-width: 1.5; }
.hdr__mob { display: none; }

/* ── Sheet menu (overlay from the right) ─────────────────────────────── */
.sheet { position: fixed; inset: 0; z-index: var(--z-sheet); display: grid; grid-template-columns: 1fr min(440px, 100%); }
.sheet__scrim { background: var(--color-scrim); opacity: 0; transition: opacity .3s; border: 0; padding: 0; cursor: pointer; }
.sheet__panel { background: var(--color-surface); border-left: 1px solid var(--color-line); padding: var(--space-5) var(--space-6) var(--space-7); transform: translateX(100%); transition: transform .4s var(--ease); overflow-y: auto; display: flex; flex-direction: column; gap: var(--space-6); }
.sheet.is-open .sheet__scrim { opacity: 1; }
.sheet.is-open .sheet__panel { transform: none; }
.sheet__top { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); }
.sheet__top .mono { font-size: var(--fs-micro); color: var(--color-ink-2); }
.sheet ul { margin: 0; padding: 0; border-top: 1px solid var(--color-line); }
.sheet li a { display: flex; justify-content: space-between; align-items: center; min-height: 52px; border-bottom: 1px solid var(--color-line); text-decoration: none; font-family: var(--font-display); font-size: 1.5rem; transition: color .2s, padding .3s var(--ease); }
.sheet li a:hover, .sheet li a:focus-visible { color: var(--color-brand); padding-left: .5rem; }
.sheet li a[aria-current] { color: var(--color-brand); }
.sheet li a .icon { width: 1.125rem; height: 1.125rem; color: var(--color-ink-2); stroke-width: 1.5; }
.sheet__sub a { font-family: var(--font-body) !important; font-size: 1rem !important; min-height: 46px !important; }
.sheet__note { font-size: var(--fs-small); color: var(--color-ink-2); }

/* ── Section rhythm ──────────────────────────────────────────────────── */
.sec { padding-block: clamp(4rem, 9vw, 8rem); }
.sec--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.sec--top0 { padding-top: 0; }
.zig { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 6vw, 6.5rem); align-items: start; }
.zig--m { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.zig--r { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.divider { margin: 0; }
.divider .horizon { margin-top: 0; }

/* ── Inner pages: head (added — the mockup drew only the home) ───────── */
.page-head { padding-top: clamp(2rem, 4.5vw, 4rem); }
.crumbs { display: flex; flex-wrap: wrap; gap: .35rem .6rem; font-family: var(--font-mono); font-size: var(--fs-micro); color: var(--color-ink-2); }
.crumbs a { text-decoration: none; position: relative; }
.crumbs a:hover, .crumbs a:focus-visible { color: var(--color-ink); text-decoration: underline; }
.crumbs a::after { content: ""; position: absolute; inset: 50% 0 auto 0; translate: 0 -50%; height: 100%; min-height: 24px; }
.crumbs li + li::before { content: "·"; margin-right: .6rem; }
.crumbs ol { display: contents; }
.page-head__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 26rem); gap: var(--space-6) clamp(2rem, 6vw, 6rem); align-items: end; margin-top: var(--space-6); }
.page-head h1 { font-size: var(--fs-h1-page); line-height: .95; letter-spacing: -.02em; }
.page-head h1 em { font-style: italic; color: var(--color-brand); }
.page-head__lead { font-size: var(--fs-lead); font-weight: 300; color: var(--color-ink-2); max-width: 46ch; }
.page-head .horizon { margin-top: clamp(2rem, 4vw, 3.5rem); }

/* two columns: sticky local index + content (legal, guides) */
.layout-aside { display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.toc { position: sticky; top: calc(var(--header-h) + var(--space-5)); }
.toc h2 { font: 400 var(--fs-micro)/1.2 var(--font-mono); color: var(--color-ink-2); margin-bottom: var(--space-3); letter-spacing: .02em; }
.toc ol { border-top: 1px solid var(--color-ink); counter-reset: toc; }
.toc li { border-bottom: 1px solid var(--color-line); counter-increment: toc; }
.toc a { display: flex; gap: .6rem; padding: .6rem 0; min-height: 40px; align-items: baseline; font-size: var(--fs-small); text-decoration: none; color: var(--color-ink-2); transition: color .2s; }
.toc a::before { content: counter(toc, decimal-leading-zero); font-family: var(--font-mono); font-size: var(--fs-micro); }
.toc a:hover, .toc a:focus-visible, .toc a.is-active { color: var(--color-ink); }
.toc a.is-active::before { color: var(--color-accent-text); }

/* ── Footer ──────────────────────────────────────────────────────────── */
.ftr { background: var(--color-surface); border-top: 1px solid var(--color-line); padding-bottom: var(--space-6); margin-top: clamp(3rem, 6vw, 5rem); }
.ftr .horizon { margin-top: 0; height: 28px; transform: translateY(-14px); }
.ftr .horizon__sun { box-shadow: 0 0 0 6px var(--color-surface); }
.ftr__brand { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: var(--space-5) var(--space-7); align-items: end; padding: var(--space-5) 0 var(--space-6); border-bottom: 1px solid var(--color-line); }
.ftr__brand p { margin-top: 0; justify-self: end; }
.ftr__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-7); padding-top: var(--space-6); }
.ftr .mark { align-items: flex-start; padding: 0; }
.ftr p { font-size: var(--fs-small); color: var(--color-ink-2); margin-top: var(--space-4); max-width: 36ch; }
.ftr h2 { font: 400 var(--fs-micro)/1 var(--font-mono); color: var(--color-ink-2); margin: 0 0 var(--space-3); letter-spacing: .02em; }
.ftr li a, .ftr li button { display: inline-flex; min-height: 36px; align-items: center; font-size: .9375rem; text-decoration: none; border: 0; border-bottom: 1px solid transparent; background: none; padding: 0; color: inherit; cursor: pointer; text-align: left; }
.ftr li a:hover, .ftr li a:focus-visible, .ftr li button:hover, .ftr li button:focus-visible { border-bottom-color: currentColor; }
.ftr__data { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: var(--space-4) var(--space-6); margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--color-line); font-size: var(--fs-small); color: var(--color-ink-2); }
.ftr__data > div { display: flex; gap: .6rem; align-items: flex-start; }
.ftr__data .icon { width: 1.125rem; height: 1.125rem; flex: none; margin-top: .15rem; color: var(--color-ink); stroke-width: 1.5; }
.ftr__data b { display: block; font: 400 var(--fs-micro)/1.4 var(--font-mono); color: var(--color-ink-2); margin-bottom: .15rem; }
.ftr__data span { color: var(--color-ink); }
.ftr__data a { color: var(--color-ink); }
.rg { display: flex; align-items: center; gap: var(--space-4); margin-top: var(--space-5); padding: var(--space-4) var(--space-5); border: 1px solid var(--color-ink); border-radius: var(--radius-m); font-size: var(--fs-small); }
.rg b { font-family: var(--font-display); font-size: 1.75rem; font-weight: 400; line-height: 1; }
.rg .tlink { margin-left: auto; white-space: nowrap; }
.ftr__copy { margin-top: var(--space-5); font-size: var(--fs-micro); color: var(--color-ink-2); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2) var(--space-5); }

/* back to top — in the language of the mockup: a pill like .btn-menu */
.to-top { position: fixed; right: var(--space-5); bottom: var(--space-5); z-index: var(--z-header); width: 48px; height: 48px; border: 1px solid var(--color-line-strong); border-radius: 50%; background: var(--color-surface); color: var(--color-ink); cursor: pointer; display: grid; place-items: center; box-shadow: 0 6px 20px rgba(26, 29, 36, .08); transition: border-color .25s, transform .25s var(--ease); }
.to-top:hover, .to-top:focus-visible { border-color: var(--color-ink); transform: translateY(-2px); }
.to-top .icon { width: 1.25rem; height: 1.25rem; stroke-width: 1.5; }

/* ── responsive (breakpoints of the mockup) ──────────────────────────── */
@media (max-width: 1080px) {
  :root { --header-h: 68px; }
  .nav { display: none; }
  .hdr__in { grid-template-columns: 1fr auto 1fr; }
  span.hdr__mob { display: block; }
  .btn-menu.hdr__mob { display: inline-flex; justify-self: end; }
  .mark__a { font-size: 1.6rem; }
  .zig, .zig--m, .zig--r { grid-template-columns: 1fr; }
  .page-head__grid { grid-template-columns: 1fr; align-items: start; }
  .layout-aside { grid-template-columns: 1fr; }
  .toc { position: static; }
  .ftr__brand { grid-template-columns: 1fr; }
  .ftr__brand p { justify-self: start; }
}
@media (max-width: 640px) {
  .hdr__in .mark__b { font-size: .625rem; letter-spacing: .1em; }
  .btn-menu.hdr__mob { padding: 0 .85rem; }
  .ftr__grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
  .ftr__grid > div:last-child { grid-column: 1 / -1; }
  .rg { flex-wrap: wrap; }
  .rg .tlink { margin-left: 0; }
  .toc { display: none; }
}
@media (max-width: 389px) {
  .hdr__in .btn-menu.hdr__mob span { display: none; }
}

/* calibration fixes (S5): container rules that leaked into components */
.ftr .ftr__data p, .ftr .ftr__copy { margin-top: 0; max-width: none; }
.ftr .ftr__copy { margin-top: var(--space-5); }
/* the toc title must beat `.sec h2` of components.css (loaded later, same specificity) */
.toc .toc__t, .sec .toc h2 { font: 400 var(--fs-micro)/1.2 var(--font-mono); color: var(--color-ink-2); margin: 0 0 var(--space-3); letter-spacing: .02em; }
/* data band: 4 → 2 → 1, never 3 + 1 */
.ftr__data { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1080px) { .ftr__data { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .ftr__data { grid-template-columns: 1fr; } }

/* Logo (logo__1: wordmark + sun on the horizon line) replaces the CSS lettering of the mockup */
.mark__img { display: block; height: 52px; width: auto; }
.mark__img--ftr { height: 56px; }
@media (max-width: 1080px) { .hdr .mark__img { height: 42px; } }
@media (max-width: 640px) { .hdr .mark__img { height: 36px; } }