/* ===== Tokens — branco, preto e verde ===== */
:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f7;
  --surface: #ffffff;
  --black: #0a0a0a;
  --black-soft: rgba(10, 10, 10, 0.05);
  --text: var(--black);
  --text-muted: rgba(10, 10, 10, 0.58);
  --text-faint: rgba(10, 10, 10, 0.38);
  --green: #16a34a;
  --green-soft: #ecfdf3;
  --green-hover: #15803d;
  --accent: var(--green);
  --accent-soft: var(--green-soft);
  --accent-hover: var(--green-hover);
  --gradient-brand: linear-gradient(135deg, var(--black) 0%, var(--green) 100%);
  --border: rgba(10, 10, 10, 0.09);
  --border-strong: rgba(10, 10, 10, 0.16);
  --shadow-sm: 0 2px 8px rgba(10, 10, 10, 0.04);
  --shadow-md: 0 16px 40px rgba(10, 10, 10, 0.08);
  --shadow-lg: 0 24px 56px rgba(10, 10, 10, 0.1);
  --font-display: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif;
  --header-h: 72px;
  --max-w: 1120px;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;
  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  max-width: calc(var(--max-w) + 3rem);
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.header--scrolled {
  border-bottom-color: var(--border);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.logo__dot {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav { display: flex; gap: 0.15rem; }

.nav a {
  padding: 0.45rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.nav a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav a.nav__active {
  color: var(--green-hover);
  background: var(--green-soft);
  font-weight: 600;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text);
  border-radius: 1px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  z-index: 99;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-nav[hidden] { display: none; }
.mobile-nav a { font-weight: 500; padding: 0.6rem 0; color: var(--text-muted); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

.btn--sm { padding: 0.45rem 0.9rem; font-size: 0.85rem; }
.btn--full { width: 100%; }

.btn--primary {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.28);
}

.btn--primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 14px rgba(22, 163, 74, 0.35);
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: transparent;
}

.btn--ghost:hover {
  color: var(--text);
  border-color: var(--text-faint);
  background: var(--bg-soft);
}

.btn--dark,
.btn--lime {
  background: var(--accent);
  color: #fff;
}

.btn--dark:hover,
.btn--lime:hover {
  background: var(--accent-hover);
}

.btn--lg { padding: 0.75rem 1.5rem; }

/* ===== Hero ===== */
.hero {
  padding: 3.5rem 1.5rem 3.5rem;
  background: linear-gradient(180deg, var(--green-soft) 0%, var(--bg) 55%);
  border-bottom: 1px solid var(--border);
}

.hero__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr minmax(260px, 300px);
  gap: 3rem;
  align-items: start;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-hover);
  background: var(--accent-soft);
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.15rem, 5vw, 3.15rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.15rem;
  color: var(--text);
}

.hero__title em {
  font-style: normal;
  font-weight: 800;
  color: var(--green);
  transition: opacity 0.25s var(--ease);
}

.hero__title em.is-changing {
  opacity: 0;
}

.hero__subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 440px;
  margin-bottom: 1.75rem;
  line-height: 1.65;
}

/* Search */
.search { margin-bottom: 1.25rem; }

.search__wrap {
  position: relative;
  display: flex;
  max-width: 440px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search__wrap:focus-within {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-soft);
}

.search__input {
  flex: 1;
  min-width: 0;
  padding: 0.85rem 1rem;
  border: none;
  font-size: 0.95rem;
  outline: none;
  background: transparent;
}

.search__input::placeholder { color: transparent; }

.search__placeholder {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-faint);
  pointer-events: none;
  font-size: 0.95rem;
}

.search__input:focus + .search__placeholder,
.search__input:not(:placeholder-shown) + .search__placeholder { opacity: 0; }

.search__btn {
  padding: 0 1.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: var(--green);
  transition: background 0.2s;
}

.search__btn:hover {
  background: var(--green-hover);
}

/* Tags */
.hero__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.hero__tags-label {
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-right: 0.25rem;
}

.tag {
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 100px;
  border: 1px solid transparent;
  transition: transform 0.2s, box-shadow 0.2s;
}

.tag:nth-child(odd) { color: var(--green-hover); background: var(--green-soft); border-color: rgba(26, 157, 98, 0.25); }
.tag:nth-child(even) { color: var(--black); background: var(--black-soft); border-color: var(--border); }

.tag:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Hero card */
.hero__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 4px solid var(--green);
  border-radius: var(--radius-lg);
  padding: 1.65rem;
  box-shadow: var(--shadow-lg);
}

.hero__card-label {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-hover);
  background: #fff;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.hero__card-region {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 1rem;
}

.hero__card-word {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 0.65rem;
  color: var(--black);
}

.hero__card-meaning {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  min-height: 4.2em;
  margin-bottom: 1.25rem;
}

.hero__card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.hero__card-action {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.hero__card-action:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.hero__card-counter {
  font-size: 0.8rem;
  color: var(--text-faint);
}

.hero__card.is-flipping .hero__card-word,
.hero__card.is-flipping .hero__card-meaning {
  animation: fadeUp 0.3s var(--ease);
}

@keyframes fadeUp {
  50% { opacity: 0; transform: translateY(4px); }
}

/* Stats */
.stats {
  padding: 0 1.5rem 3.5rem;
}

.stats__bar {
  max-width: var(--max-w);
  margin: -1.75rem auto 0;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.stat {
  text-align: center;
  padding: 1.5rem 1rem;
  border-right: 1px solid var(--border);
  background: var(--surface);
}

.stat:last-child { border-right: none; }

.stat__number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--green-hover);
}

.stat:nth-child(even) .stat__number { color: var(--black); }

.stat__label {
  font-size: 0.8rem;
  color: var(--text-faint);
  font-weight: 500;
}

/* Sections */
.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}

.section--soft {
  max-width: none;
  background: var(--green-soft);
  border-top: 1px solid rgba(22, 163, 74, 0.12);
  border-bottom: 1px solid rgba(22, 163, 74, 0.12);
}

.section--soft .section__head,
.section--soft .girias-grid {
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
}

.section--alt {
  max-width: none;
  background: var(--bg);
}

.section--alt .section__head,
.section--alt .girias-grid,
.section--alt .regions,
.section--alt .region-preview {
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
}

.section__head { margin-bottom: 2rem; }

.section__tag {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.45rem;
  line-height: 1.2;
}

.section__desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.section__header { margin-bottom: 2rem; }
.section__title--sm { font-size: 1.1rem; margin-bottom: 0.75rem; }

/* Regions */
.regions,
.regions-bento {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.regions-bento {
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: none;
}

.region-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  padding: 1.35rem;
  min-height: 132px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
  position: relative;
}

.region-card::after {
  content: "→";
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  font-size: 1rem;
  color: var(--text-faint);
  transition: color 0.2s, transform 0.2s;
}

.region-card:hover {
  border-color: rgba(22, 163, 74, 0.35);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.region-card:hover::after {
  color: var(--green);
  transform: translateX(3px);
}

.region-card[data-region="sudeste"],
.region-card[data-region="sul"],
.region-card[data-region="centro-oeste"] {
  border-top: 4px solid var(--green);
}

.region-card[data-region="nordeste"],
.region-card[data-region="norte"] {
  border-top: 4px solid var(--black);
}

.region-card--active,
.region-card--featured {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.region-card--featured { grid-column: auto; grid-row: auto; }

.region-card__emoji {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  font-size: 1.35rem;
  background: var(--green-soft);
  border-radius: 12px;
  margin-bottom: 0.5rem;
}

.region-card[data-region="nordeste"] .region-card__emoji,
.region-card[data-region="norte"] .region-card__emoji {
  background: var(--black-soft);
}

.region-card__name { font-weight: 700; font-size: 1rem; letter-spacing: -0.02em; }
.region-card__count { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }
.region-card__cta { display: none; }

.region-preview {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  background: var(--green-soft);
  border: 1px solid rgba(26, 157, 98, 0.15);
  border-radius: var(--radius);
}

.region-preview.is-updating { opacity: 0.5; }

.region-preview__quote {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-muted);
}

.region-preview__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
}

.region-preview__link:hover { text-decoration: underline; }

/* Gírias grid */
.girias-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.giria-card {
  padding: 1.4rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.girias-grid .giria-card:nth-child(odd) { border-left-color: var(--green); }
.girias-grid .giria-card:nth-child(even) { border-left-color: var(--black); }

.giria-card:hover {
  border-color: rgba(26, 157, 98, 0.2);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.giria-card__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.giria-card__word {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.giria-card__trend {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.giria-card__trend--hot {
  background: var(--black);
  color: #fff;
}

.giria-card__trend--new {
  background: var(--accent-soft);
  color: var(--accent);
}

.giria-card__meaning {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 0.75rem;
}

.giria-card__example {
  font-size: 0.85rem;
  color: var(--text-faint);
  font-style: italic;
  margin-bottom: 0.75rem;
}

.giria-card__meta { font-size: 0.75rem; color: var(--text-faint); font-weight: 500; }

/* About */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about__text {
  color: var(--text-muted);
  margin: 0.75rem 0 1.25rem;
  line-height: 1.65;
}

.about__list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.about__list li {
  position: relative;
  padding: 0.3rem 0 0.3rem 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.about__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.about__aside {
  padding: 2rem 1.75rem;
  background: var(--black);
  color: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius-lg);
  border: none;
  box-shadow: var(--shadow-md);
}

.about__aside .about__sample { color: rgba(255, 255, 255, 0.9); }
.about__aside .about__sample span { color: var(--green); }
.about__aside .about__sample--muted { color: rgba(255, 255, 255, 0.55); }

.about__sample {
  font-size: 1.05rem;
  font-weight: 500;
  padding: 0.5rem 0;
  color: var(--text);
}

.about__sample span { color: var(--accent); font-weight: 600; }

.about__sample--muted {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-muted);
  padding-left: 1rem;
}

.about__card,
.about__chat { display: none; }

/* CTA */
.cta {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.cta__inner,
.cta__box {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--green);
  border: none;
  border-radius: var(--radius-lg);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.cta__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}

.cta__text {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 1.35rem;
}

.cta__inner .btn--primary,
.cta__box .btn--primary {
  background: var(--black);
  box-shadow: none;
}

.cta__inner .btn--primary:hover,
.cta__box .btn--primary:hover {
  background: #222;
}

.cta__form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  max-width: 420px;
  margin: 0 auto;
}

.cta__input {
  flex: 1;
  min-width: 180px;
  padding: 0.75rem 1.1rem;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  background: #fff;
  outline: none;
  transition: box-shadow 0.2s;
}

.cta__input:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.35);
}

/* Footer */
.footer {
  max-width: none;
  margin: 0;
  padding: 2.75rem 1.5rem 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  background: var(--black);
  color: rgba(255, 255, 255, 0.7);
}

.footer .logo {
  font-size: 1.05rem;
  color: #fff;
}

.footer .logo__dot {
  background: var(--green);
  -webkit-text-fill-color: var(--green);
}

.footer__nav {
  display: flex;
  gap: 1.5rem;
  margin-left: auto;
}

.footer__nav a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  font-weight: 500;
}

.footer__nav a:hover { color: #fff; }

.footer__copy {
  width: 100%;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.38);
  margin-top: 0.5rem;
}

.footer__top { display: contents; }

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(60px);
  z-index: 200;
  padding: 0.75rem 1.15rem;
  background: var(--text);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  transition: transform 0.35s var(--ease);
}

.toast.is-visible { transform: translateX(-50%) translateY(0); }
.toast[hidden] { display: block; visibility: hidden; }
.toast.is-visible[hidden] { visibility: visible; }

.states-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
}

.states-list__item {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-soft);
  border-radius: 6px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .stats__bar {
    grid-template-columns: repeat(3, 1fr);
    margin-top: -1rem;
  }

  .regions,
  .regions-bento {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about__aside { order: -1; }
}

@media (max-width: 640px) {
  .nav,
  .header .btn--ghost:not(.menu-toggle) { display: none; }

  .menu-toggle { display: flex; }

  .regions,
  .regions-bento { grid-template-columns: 1fr; }

  .stats__bar { grid-template-columns: 1fr; }
  .stat {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .stat:last-child { border-bottom: none; }

  .footer__nav { margin-left: 0; width: 100%; }

  .search__wrap { max-width: none; }
}