/* ---------------------------------------------------------------------------
   Tentaishi — site styles
   Every rule here is a direct translation of the approved design. Inline
   styles and the `style-hover` attribute from the design source have been
   promoted to real classes so the pages stay small, cacheable and CSP-safe
   (no `unsafe-inline` needed).
--------------------------------------------------------------------------- */

/* ------------------------------- base ---------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--foreground);
}

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ------------------------- language switching -------------------------- */
/* Both languages ship in the markup; the active one is chosen with a single
   attribute on <html>, so switching costs no request and no layout flash. */

[data-l="en"] {
  display: none;
}

html[data-lang="en"] [data-l="en"] {
  display: revert;
}

html[data-lang="en"] [data-l="pt"] {
  display: none;
}

/* --------------------------- skip link ---------------------------------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 18px;
  background: var(--primary);
  color: var(--primary-foreground);
  border-radius: 0 0 var(--radius) 0;
  font-size: 14px;
}

.skip-link:focus {
  left: 0;
  color: var(--primary-foreground);
}

/* ----------------------------- layout ----------------------------------- */

.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--background);
  color: var(--foreground);
}

.shell--home {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}

/* ----------------------------- header ----------------------------------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 56px;
  border-bottom: 1px solid var(--border);
}

.site-header--home {
  border-bottom: none;
}

.site-header__brand {
  display: flex;
  align-items: center;
}

.site-header__logo {
  height: 34px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
}

.site-nav--home {
  gap: 26px;
}

.nav-link {
  color: var(--muted-foreground);
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link[aria-current="page"] {
  color: var(--foreground);
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 16px;
  color: var(--foreground);
  font-weight: 500;
}

.btn-back:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--muted);
}

.btn-back__arrow {
  font-size: 15px;
  line-height: 1;
}

.btn-lang {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted-foreground);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 12px;
  font-family: inherit;
  letter-spacing: 0.12em;
  cursor: pointer;
}

.btn-lang:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ------------------------------- hero ----------------------------------- */

.hero {
  /* Grows so the home page footer stays pinned to the bottom on tall
     viewports, the way .page-main and .notfound do on the other pages. */
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  padding: 80px 56px 96px;
  text-align: center;
  background: radial-gradient(
    90% 70% at 50% 30%,
    color-mix(in oklab, var(--primary) 10%, transparent) 0%,
    transparent 65%
  );
}

.hero__logo {
  width: 420px;
  height: auto;
}

.hero__tagline {
  margin: 0;
  max-width: 560px;
  font-size: 19px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--muted-foreground);
  text-wrap: pretty;
}

.hero__contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

/* ---------------------------- home cards -------------------------------- */

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 0 56px 72px;
}

.card-link {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  color: var(--card-foreground);
}

.card-link:hover {
  border-color: var(--primary);
  color: var(--card-foreground);
}

.card-link__index {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--primary);
}

.card-link__title {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card-link__desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted-foreground);
}

.card-link__cta {
  font-size: 14px;
  color: var(--primary);
  margin-top: 4px;
}

/* ---------------------------- inner pages ------------------------------- */

.page-main {
  flex: 1;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
  padding: 72px 56px 96px;
}

.page-title {
  margin: 0 0 16px;
  font-size: 46px;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.page-intro {
  margin: 0 0 48px;
  max-width: 620px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--muted-foreground);
  text-wrap: pretty;
}

/* --------------------------- entry cards -------------------------------- */

.entry {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  overflow: hidden;
}

.entry + .entry {
  margin-top: 24px;
}

.entry__split {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  padding: 40px;
}

.entry__body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.entry__kicker {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--primary);
}

.entry__title {
  margin: 0;
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.entry__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--muted-foreground);
  text-wrap: pretty;
}

.entry__aside {
  border-left: 1px solid var(--border);
  padding-left: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.entry__aside p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
}

.aside__label {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}

.aside__link {
  font-size: 15px;
  font-weight: 600;
  word-break: break-word;
}

.aside__link--muted {
  font-size: 14px;
  font-weight: 400;
  color: var(--muted-foreground);
}

.aside__link--muted:hover {
  color: var(--primary);
}

/* ------------------------------ tags ------------------------------------ */

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.tag {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--muted-foreground);
}

/* ---------------------- intellectual property --------------------------- */

.section {
  margin-bottom: 48px;
}

.section:last-of-type {
  margin-bottom: 0;
}

.section__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}

.section__title {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted-foreground);
}

.section__count {
  font-size: 12px;
  color: var(--muted-foreground);
}

.badge {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 6px 14px;
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  color: var(--primary);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 8px 0 0;
}

.fact__label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  margin-bottom: 4px;
}

.fact__value {
  font-size: 15px;
  margin: 0;
}

.empty-state {
  margin: 0;
  border: 1px dashed var(--border);
  border-radius: 16px;
  padding: 32px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted-foreground);
}

/* ----------------------------- contact ---------------------------------- */

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}

.contact {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mail-link {
  font-size: 24px;
  letter-spacing: -0.01em;
}

.mail-link--hero {
  font-size: 26px;
}

/* ------------------------------ footer ---------------------------------- */

.site-footer {
  padding: 22px 56px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted-foreground);
  letter-spacing: 0.04em;
}

.footer-link {
  color: var(--muted-foreground);
}

.footer-link:hover {
  color: var(--primary);
}

/* ---------------------------- 404 page ---------------------------------- */

.notfound {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 96px 56px;
  text-align: center;
}

.notfound__code {
  font-size: 13px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--primary);
}

.notfound__title {
  margin: 0;
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.025em;
}

/* ---------------------------- responsive -------------------------------- */

@media (max-width: 860px) {
  .site-header {
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px 20px;
  }

  .hero {
    padding: 48px 20px 56px;
    gap: 28px;
  }

  .hero__logo {
    width: min(74vw, 300px);
  }

  .page-main {
    padding: 40px 20px 64px;
  }

  .cards {
    grid-template-columns: 1fr;
    padding: 0 20px 48px;
  }

  .entry__split {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px 20px;
  }

  .entry__aside {
    border-left: none;
    border-top: 1px solid var(--border);
    padding-left: 0;
    padding-top: 20px;
  }

  .facts {
    grid-template-columns: 1fr;
  }

  .page-title,
  .notfound__title {
    font-size: 32px;
  }

  .entry__title {
    font-size: 24px;
  }

  .mail-link,
  .mail-link--hero {
    font-size: 18px;
    word-break: break-word;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 18px 20px;
  }
}

@media print {
  .site-header,
  .site-footer,
  .skip-link {
    display: none;
  }
}
