/* ════════════════════════════════════════════════════════════════════
   HIKARI — Design system
   Tokens (night/day), base, layout, componentes, navbar, footer e
   camada de wallpaper. Todas as páginas carregam este arquivo primeiro;
   os CSS de página só cuidam da composição específica.

   Temas: <html data-theme="night|day">  (night é o padrão)
   ════════════════════════════════════════════════════════════════════ */

/* ─── 1. Tokens fixos (não mudam com o tema) ───────────────────────── */
:root {
  /* Marca */
  --brand-violet: #6c63ff;
  --brand-lilac: #a78bfa;
  --brand-cyan: #00f2ff;
  --brand-gold: #ffbb33;

  /* Tipografia */
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;

  --fs-2xs: 0.6875rem;  /* 11px — rótulos em caixa alta */
  --fs-xs: 0.75rem;     /* 12px */
  --fs-sm: 0.875rem;    /* 14px */
  --fs-base: 1rem;      /* 16px */
  --fs-md: 1.0625rem;   /* 17px — texto de leitura */
  --fs-lg: 1.25rem;     /* 20px */
  --fs-xl: clamp(1.375rem, 1.2rem + 0.7vw, 1.625rem);
  --fs-2xl: clamp(1.75rem, 1.4rem + 1.5vw, 2.25rem);
  --fs-3xl: clamp(2.125rem, 1.5rem + 2.8vw, 3.25rem);
  --fs-display: clamp(2.5rem, 1.55rem + 4.3vw, 4.25rem);

  --lh-tight: 1.1;
  --lh-snug: 1.3;
  --lh-normal: 1.55;
  --lh-relaxed: 1.7;

  --tracking-tight: -0.025em;
  --tracking-wide: 0.08em;
  --tracking-brand: 0.16em;

  /* Espaçamento (base 4px) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --section-y: clamp(3.5rem, 2.5rem + 4vw, 6rem);
  --gutter: clamp(1rem, 0.6rem + 1.8vw, 2rem);

  /* Larguras */
  --w-page: 1180px;
  --w-content: 960px;
  --w-prose: 720px;

  /* Raios */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-pill: 999px;

  /* Movimento */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-1: 120ms;
  --dur-2: 200ms;
  --dur-3: 320ms;
  --dur-4: 520ms;

  /* Camadas */
  --z-raised: 1;
  --z-fx: 40;
  --z-navbar: 100;
  --z-menu: 110;
  --z-toast: 300;

  --navbar-h: 64px;
}

/* ─── 2. Tema NOITE (padrão) ───────────────────────────────────────── */
:root,
:root[data-theme="night"] {
  color-scheme: dark;

  --bg: #08080f;
  --bg-tint: #0d0c1a;
  --surface: rgba(17, 16, 32, 0.74);        /* painéis sobre o wallpaper */
  --surface-strong: rgba(20, 19, 38, 0.9);
  --surface-solid: #131223;                  /* menus, modais */
  --surface-sunken: rgba(0, 0, 0, 0.28);    /* campos, blocos de código */
  --surface-hover: rgba(255, 255, 255, 0.05);
  --navbar-bg: rgba(9, 9, 18, 0.78);

  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-accent: rgba(124, 116, 255, 0.5);

  --text: #eeeefb;
  --text-2: #b8b9d6;
  --text-3: #8d8eae;
  --text-inverse: #0b0a16;

  --accent: #6c63ff;              /* marca: brilhos, bordas, ícones */
  --accent-fill: #5b52ec;         /* fundo de botões (contraste AA com branco) */
  --accent-fill-hover: #6860f6;
  --accent-text: #aaa4ff;         /* violeta legível como texto */
  --accent-soft: rgba(108, 99, 255, 0.14);
  --accent-soft-strong: rgba(108, 99, 255, 0.24);
  --on-accent: #ffffff;

  --gold: #ffbb33;
  --gold-text: #ffcb5c;
  --gold-soft: rgba(255, 187, 51, 0.12);
  --gold-border: rgba(255, 187, 51, 0.38);

  --cyan: #00f2ff;
  --cyan-text: #5ff6ff;
  --cyan-soft: rgba(0, 242, 255, 0.09);
  --cyan-border: rgba(0, 242, 255, 0.32);

  --success: #3ddc84;
  --success-soft: rgba(61, 220, 132, 0.12);
  --success-border: rgba(61, 220, 132, 0.35);
  --danger: #ff7b7b;
  --danger-soft: rgba(255, 92, 92, 0.12);
  --danger-border: rgba(255, 92, 92, 0.36);
  --warning: #ffcb5c;
  --warning-soft: rgba(255, 187, 51, 0.12);
  --warning-border: rgba(255, 187, 51, 0.38);

  --focus: #b3adff;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.35), 0 1px 1px rgba(0, 0, 0, 0.2);
  --shadow-2: 0 10px 30px -12px rgba(0, 0, 0, 0.65), 0 2px 6px rgba(0, 0, 0, 0.3);
  --shadow-3: 0 28px 60px -20px rgba(0, 0, 0, 0.75), 0 6px 16px rgba(0, 0, 0, 0.35);
  --shadow-accent: 0 10px 28px -10px rgba(108, 99, 255, 0.65);
  --highlight: inset 0 1px 0 rgba(255, 255, 255, 0.06);

  --backdrop-fallback:
    radial-gradient(1100px 620px at 12% -8%, rgba(108, 99, 255, 0.30), transparent 62%),
    radial-gradient(900px 560px at 92% 8%, rgba(167, 139, 250, 0.18), transparent 60%),
    radial-gradient(800px 600px at 50% 110%, rgba(0, 242, 255, 0.07), transparent 60%),
    linear-gradient(180deg, #0c0b19 0%, #08080f 100%);
  --scrim:
    linear-gradient(180deg, rgba(8, 8, 15, 0.52) 0%, rgba(8, 8, 15, 0.70) 38%, rgba(8, 8, 15, 0.90) 72%, rgba(8, 8, 15, 0.96) 100%);
  --scrim-solid: rgba(8, 8, 15, 0.86);
  --wallpaper-filter: saturate(1.05);

  --scrollbar-thumb: rgba(170, 164, 255, 0.28);
  --scrollbar-thumb-hover: rgba(170, 164, 255, 0.45);
}

/* ─── 3. Tema DIA ──────────────────────────────────────────────────── */
:root[data-theme="day"] {
  color-scheme: light;

  --bg: #f5f3fc;
  --bg-tint: #ece9fb;
  --surface: rgba(255, 255, 255, 0.8);
  --surface-strong: rgba(255, 255, 255, 0.93);
  --surface-solid: #ffffff;
  --surface-sunken: rgba(36, 30, 92, 0.05);
  --surface-hover: rgba(36, 30, 92, 0.05);
  --navbar-bg: rgba(250, 249, 255, 0.82);

  --border: rgba(30, 24, 82, 0.11);
  --border-strong: rgba(30, 24, 82, 0.2);
  --border-accent: rgba(91, 82, 236, 0.45);

  --text: #17152e;
  --text-2: #484666;
  --text-3: #66648a;
  --text-inverse: #ffffff;

  --accent: #6c63ff;
  --accent-fill: #5b52ec;
  --accent-fill-hover: #4c43dd;
  --accent-text: #4a41d4;
  --accent-soft: rgba(91, 82, 236, 0.1);
  --accent-soft-strong: rgba(91, 82, 236, 0.18);
  --on-accent: #ffffff;

  --gold: #e6a01a;
  --gold-text: #8f5a00;
  --gold-soft: rgba(230, 160, 26, 0.12);
  --gold-border: rgba(190, 126, 0, 0.38);

  --cyan: #06b6d4;
  --cyan-text: #0e6f86;
  --cyan-soft: rgba(6, 182, 212, 0.1);
  --cyan-border: rgba(8, 145, 178, 0.35);

  --success: #15803d;
  --success-soft: rgba(21, 128, 61, 0.1);
  --success-border: rgba(21, 128, 61, 0.32);
  --danger: #c22a2a;
  --danger-soft: rgba(194, 42, 42, 0.08);
  --danger-border: rgba(194, 42, 42, 0.3);
  --warning: #8f5a00;
  --warning-soft: rgba(230, 160, 26, 0.12);
  --warning-border: rgba(190, 126, 0, 0.38);

  --focus: #5b52ec;

  --shadow-1: 0 1px 2px rgba(30, 24, 82, 0.08), 0 1px 1px rgba(30, 24, 82, 0.04);
  --shadow-2: 0 12px 30px -14px rgba(30, 24, 82, 0.28), 0 2px 6px rgba(30, 24, 82, 0.06);
  --shadow-3: 0 30px 60px -24px rgba(30, 24, 82, 0.35), 0 6px 16px rgba(30, 24, 82, 0.08);
  --shadow-accent: 0 10px 26px -10px rgba(91, 82, 236, 0.55);
  --highlight: inset 0 1px 0 rgba(255, 255, 255, 0.7);

  --backdrop-fallback:
    radial-gradient(1000px 600px at 10% -10%, rgba(167, 139, 250, 0.35), transparent 60%),
    radial-gradient(900px 560px at 95% 0%, rgba(255, 187, 51, 0.18), transparent 60%),
    radial-gradient(900px 640px at 50% 115%, rgba(0, 242, 255, 0.12), transparent 60%),
    linear-gradient(180deg, #f7f5ff 0%, #f1eefb 100%);
  --scrim:
    linear-gradient(180deg, rgba(245, 243, 252, 0.40) 0%, rgba(245, 243, 252, 0.66) 36%, rgba(245, 243, 252, 0.90) 70%, rgba(245, 243, 252, 0.96) 100%);
  --scrim-solid: rgba(245, 243, 252, 0.88);
  --wallpaper-filter: saturate(1.02) brightness(1.02);

  --scrollbar-thumb: rgba(74, 65, 212, 0.25);
  --scrollbar-thumb-hover: rgba(74, 65, 212, 0.42);
}

/* ─── 4. Base ──────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background-color: var(--bg);
  scroll-padding-top: calc(var(--navbar-h) + var(--space-4));
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  /* o fundo fica no <html>: assim a camada .hk-backdrop (z-index -1) aparece */
  background: transparent;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

main { flex: 1 0 auto; display: block; }

img,
svg,
video { display: block; max-width: 100%; }
img { height: auto; }

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  color: var(--text);
  font-weight: 750;
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; }

a {
  color: var(--accent-text);
  text-decoration: none;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 0.08em;
}
a:hover { text-decoration: underline; }

button,
input,
select,
textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

code, kbd, samp { font-family: var(--font-mono); font-size: 0.92em; }

::selection { background: var(--accent-soft-strong); color: var(--text); }

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

/* Scrollbars */
* { scrollbar-width: thin; scrollbar-color: var(--scrollbar-thumb) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: var(--radius-pill);
  border: 3px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background-color: var(--scrollbar-thumb-hover); }

[hidden] { display: none !important; }

/* Transição suave entre temas (aplicada só durante a troca) */
html.theme-switching,
html.theme-switching *,
html.theme-switching *::before,
html.theme-switching *::after {
  transition: background-color var(--dur-3) var(--ease-in-out),
              border-color var(--dur-3) var(--ease-in-out),
              color var(--dur-3) var(--ease-in-out),
              fill var(--dur-3) var(--ease-in-out),
              box-shadow var(--dur-3) var(--ease-in-out) !important;
}

::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 380ms;
  animation-timing-function: var(--ease-in-out);
}

/* ─── 5. Utilitários ───────────────────────────────────────────────── */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: calc(var(--z-menu) + 10);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--accent-fill);
  color: var(--on-accent);
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform var(--dur-2) var(--ease-out);
}
.skip-link:focus-visible { transform: none; text-decoration: none; }

.container {
  width: 100%;
  max-width: calc(var(--w-page) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--content { max-width: calc(var(--w-content) + var(--gutter) * 2); }
.container--prose { max-width: calc(var(--w-prose) + var(--gutter) * 2); }

.section { padding-block: var(--section-y); }

.stack > * + * { margin-top: var(--stack-gap, var(--space-4)); }

.text-muted { color: var(--text-2); }
.text-danger { color: var(--danger); }
.link-button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}
.link-button:hover { color: var(--text); }
.text-subtle { color: var(--text-3); }
.mono { font-family: var(--font-mono); }

/* ─── 6. Tipografia de interface ───────────────────────────────────── */

/* Rótulo de seção com a estrela de quatro pontas (presilha da Hikari) */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--accent-text);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 0.75em;
  height: 0.75em;
  flex: none;
  background: currentColor;
  clip-path: polygon(50% 0, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0 50%, 39% 39%);
}
.eyebrow--gold { color: var(--gold-text); }
.eyebrow--cyan { color: var(--cyan-text); }

.page-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  line-height: var(--lh-tight);
}

.section-title {
  font-size: var(--fs-2xl);
  font-weight: 780;
  line-height: 1.2;
}

.lead {
  color: var(--text-2);
  font-size: clamp(1.0625rem, 1rem + 0.35vw, 1.1875rem);
  line-height: var(--lh-relaxed);
  max-width: 62ch;
}

.section-header {
  display: grid;
  gap: var(--space-3);
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-12));
  max-width: 680px;
}
.section-header--center { margin-inline: auto; text-align: center; justify-items: center; }

.text-accent { color: var(--accent-text); }

/* Wordmark da marca */
.wordmark {
  font-weight: 800;
  letter-spacing: var(--tracking-brand);
  text-transform: uppercase;
}

/* ─── 7. Botões ────────────────────────────────────────────────────── */
.btn {
  --btn-bg: var(--surface-strong);
  --btn-fg: var(--text);
  --btn-border: var(--border-strong);
  --btn-bg-hover: var(--surface-solid);
  --btn-border-hover: var(--border-accent);

  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-5);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-md);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--fs-sm);
  font-weight: 650;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background-color var(--dur-2) var(--ease-out),
              border-color var(--dur-2) var(--ease-out),
              color var(--dur-2) var(--ease-out),
              box-shadow var(--dur-2) var(--ease-out),
              transform var(--dur-1) var(--ease-out);
}
.btn:hover {
  background: var(--btn-bg-hover);
  border-color: var(--btn-border-hover);
  color: var(--btn-fg);
  text-decoration: none;
}
.btn:active { transform: translateY(1px) scale(0.985); }
.btn:focus-visible { outline-offset: 3px; border-radius: var(--radius-md); }
.btn i { font-size: 0.95em; }

.btn--primary {
  --btn-bg: var(--accent-fill);
  --btn-fg: var(--on-accent);
  --btn-border: transparent;
  --btn-bg-hover: var(--accent-fill-hover);
  --btn-border-hover: transparent;
  box-shadow: var(--shadow-accent), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-border: transparent;
  --btn-bg-hover: var(--surface-hover);
  --btn-border-hover: transparent;
  --btn-fg: var(--text-2);
}
.btn--ghost:hover { --btn-fg: var(--text); }

.btn--danger {
  --btn-bg: var(--danger-soft);
  --btn-fg: var(--danger);
  --btn-border: var(--danger-border);
  --btn-bg-hover: var(--danger-soft);
  --btn-border-hover: var(--danger);
}

.btn--gold {
  --btn-bg: var(--gold-soft);
  --btn-fg: var(--gold-text);
  --btn-border: var(--gold-border);
  --btn-bg-hover: var(--gold-soft);
  --btn-border-hover: var(--gold);
}

.btn--ai {
  --btn-bg: var(--cyan);
  --btn-fg: #04161a;
  --btn-border: transparent;
  --btn-bg-hover: var(--cyan);
  --btn-border-hover: transparent;
  box-shadow: 0 10px 26px -12px rgba(0, 242, 255, 0.6);
}
.btn--ai:hover { filter: brightness(1.06); }

.btn--sm { min-height: 36px; padding: 0 var(--space-3); font-size: var(--fs-xs); border-radius: var(--radius-sm); }
.btn--lg { min-height: 52px; padding: 0 var(--space-6); font-size: var(--fs-base); border-radius: var(--radius-lg); }
.btn--block { width: 100%; }

.btn-icon {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text-2);
  -webkit-tap-highlight-color: transparent;
  transition: background-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out);
}
.btn-icon:hover { background: var(--surface-hover); color: var(--text); border-color: var(--border-strong); }

.btn[disabled],
.btn[aria-disabled="true"],
.btn-icon[disabled] {
  opacity: 0.5;
  pointer-events: none;
  box-shadow: none;
}

.btn.is-loading { color: transparent !important; pointer-events: none; }
.btn.is-loading::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--btn-fg);
  border-right-color: transparent;
  animation: hk-spin 0.7s linear infinite;
}

/* ─── 8. Superfícies ───────────────────────────────────────────────── */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2), var(--highlight);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  backdrop-filter: blur(16px) saturate(1.2);
}
.card--pad { padding: clamp(var(--space-5), 3vw, var(--space-8)); }
.card--solid { background: var(--surface-strong); }

.card-title {
  font-size: var(--fs-lg);
  font-weight: 720;
}

.icon-tile {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent-text);
  border: 1px solid var(--border);
  font-size: 1rem;
}
.icon-tile--gold { background: var(--gold-soft); color: var(--gold-text); }
.icon-tile--cyan { background: var(--cyan-soft); color: var(--cyan-text); }

.divider {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--border);
}

/* ─── 9. Badges e chips ────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.28em 0.7em;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: var(--surface-hover);
  color: var(--text-2);
  font-size: var(--fs-xs);
  font-weight: 650;
  line-height: 1.2;
  white-space: nowrap;
}
.badge--accent { background: var(--accent-soft); border-color: var(--border-accent); color: var(--accent-text); }
.badge--gold { background: var(--gold-soft); border-color: var(--gold-border); color: var(--gold-text); }
.badge--cyan { background: var(--cyan-soft); border-color: var(--cyan-border); color: var(--cyan-text); }
.badge--success { background: var(--success-soft); border-color: var(--success-border); color: var(--success); }
.badge--danger { background: var(--danger-soft); border-color: var(--danger-border); color: var(--danger); }

.dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: currentColor;
}
.dot--live { box-shadow: 0 0 0 0 currentColor; animation: hk-pulse 2.2s var(--ease-out) infinite; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 36px;
  padding: 0 var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--surface);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.chip i { color: var(--accent-text); font-size: 0.9em; }

/* Chips clicáveis (filtros) */
button.chip {
  cursor: pointer;
  transition: background-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out);
}
button.chip:hover { color: var(--text); border-color: var(--border-strong); }
button.chip[aria-pressed="true"] {
  background: var(--accent-soft-strong);
  border-color: var(--border-accent);
  color: var(--text);
}
.chip .chip-count {
  min-width: 1.6em;
  padding: 0 0.4em;
  border-radius: var(--radius-pill);
  background: var(--surface-hover);
  color: var(--text-3);
  font-size: var(--fs-2xs);
  font-weight: 700;
  text-align: center;
  line-height: 1.6;
}

.kbd {
  display: inline-grid;
  place-items: center;
  min-width: 1.6em;
  height: 1.6em;
  padding: 0 0.35em;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: var(--radius-xs);
  background: var(--surface-sunken);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  line-height: 1;
}

/* ─── 10. Formulários ──────────────────────────────────────────────── */
.field { display: grid; gap: var(--space-2); }
.field + .field { margin-top: var(--space-5); }

.label {
  color: var(--text);
  font-size: var(--fs-sm);
  font-weight: 650;
}
.hint { color: var(--text-3); font-size: var(--fs-xs); line-height: var(--lh-normal); }

.input,
.select {
  width: 100%;
  min-height: 46px;
  padding: 0 var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface-sunken);
  color: var(--text);
  font-size: 1rem; /* 16px evita zoom automático no iOS */
  transition: border-color var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out), background-color var(--dur-2) var(--ease-out);
}
.input::placeholder { color: var(--text-3); opacity: 1; }
.input:hover,
.select:hover { border-color: var(--border-accent); }
.input:focus-visible,
.select:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft-strong);
}
.input[disabled],
.select[disabled] { opacity: 0.55; cursor: not-allowed; }

.select {
  appearance: none;
  padding-right: var(--space-10);
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-2) 50%),
    linear-gradient(135deg, var(--text-2) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.select option { background: var(--surface-solid); color: var(--text); }

/* Campo com ícone (busca) */
.input-wrap { position: relative; display: flex; align-items: center; }
.input-wrap > i {
  position: absolute;
  left: var(--space-4);
  color: var(--text-3);
  pointer-events: none;
}
.input-wrap .input { padding-left: calc(var(--space-4) * 2 + 0.9rem); }
.input-wrap .input-addon {
  position: absolute;
  right: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Switch (checkbox nativo, acessível) */
.switch {
  position: relative;
  display: inline-flex;
  flex: none;
  width: 48px;
  height: 28px;
}
.switch input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 1;
}
.switch .switch-track {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-pill);
  background: var(--surface-sunken);
  border: 1px solid var(--border-strong);
  transition: background-color var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out);
}
.switch .switch-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--text-3);
  box-shadow: var(--shadow-1);
  transition: transform var(--dur-3) var(--ease-out), background-color var(--dur-2) var(--ease-out);
}
.switch input:checked + .switch-track { background: var(--accent-fill); border-color: transparent; }
.switch input:checked + .switch-track::after { transform: translateX(20px); background: #fff; }
.switch input:focus-visible + .switch-track { outline: 2px solid var(--focus); outline-offset: 2px; }
.switch input:disabled { cursor: not-allowed; }
.switch input:disabled + .switch-track { opacity: 0.5; }
.switch--ai input:checked + .switch-track { background: var(--cyan); }
.switch--ai input:checked + .switch-track::after { background: #04161a; }

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-sunken);
}
.toggle-row .toggle-title { font-weight: 650; }
.toggle-row .toggle-desc { color: var(--text-3); font-size: var(--fs-sm); margin-top: 2px; }

/* ─── 11. Alertas e estados ────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  color: var(--text);
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
}
.alert > i { margin-top: 0.2em; flex: none; }
.alert strong { display: block; margin-bottom: 2px; }
.alert--success { background: var(--success-soft); border-color: var(--success-border); }
.alert--success > i { color: var(--success); }
.alert--danger { background: var(--danger-soft); border-color: var(--danger-border); }
.alert--danger > i { color: var(--danger); }
.alert--warning { background: var(--warning-soft); border-color: var(--warning-border); }
.alert--warning > i { color: var(--warning); }
.alert--info { background: var(--accent-soft); border-color: var(--border-accent); }
.alert--info > i { color: var(--accent-text); }

.empty-state {
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  padding: clamp(var(--space-10), 6vw, var(--space-16)) var(--space-5);
  text-align: center;
  color: var(--text-2);
}
.empty-state .empty-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--surface-hover);
  border: 1px solid var(--border);
  color: var(--text-3);
  font-size: 1.35rem;
  margin-bottom: var(--space-1);
}
.empty-state h2,
.empty-state h3 { font-size: var(--fs-lg); }
.empty-state p { max-width: 46ch; font-size: var(--fs-sm); }
.empty-state .empty-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-2); margin-top: var(--space-2); }

.skeleton {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--surface-hover);
}
.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
  animation: hk-shimmer 1.4s ease-in-out infinite;
}
:root[data-theme="day"] .skeleton::after { background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.7), transparent); }

.spinner {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  animation: hk-spin 0.7s linear infinite;
}

/* ─── 12. Modal (elemento <dialog> nativo) ─────────────────────────── */
.dialog {
  width: min(440px, calc(100vw - 2 * var(--space-4)));
  max-height: calc(100dvh - 2 * var(--space-4));
  overflow: auto;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  background: var(--surface-solid);
  color: var(--text);
  box-shadow: var(--shadow-3);
}
.dialog::backdrop {
  background: rgba(5, 5, 12, 0.6);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.dialog[open] { animation: hk-dialog-in var(--dur-3) var(--ease-out); }
.dialog[open]::backdrop { animation: hk-fade-in var(--dur-3) var(--ease-out); }
.dialog-body {
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  padding: var(--space-8) var(--space-6) var(--space-6);
  text-align: center;
}
.dialog-body h2 { font-size: var(--fs-xl); }
.dialog-body p { color: var(--text-2); font-size: var(--fs-sm); line-height: var(--lh-relaxed); }
.dialog-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-6) var(--space-6);
}
.dialog-actions .btn { flex: 1 1 160px; }

/* ─── 13. Toasts ───────────────────────────────────────────────────── */
.toast-region {
  position: fixed;
  left: 50%;
  bottom: max(var(--space-5), env(safe-area-inset-bottom));
  z-index: var(--z-toast);
  display: grid;
  gap: var(--space-2);
  width: max-content;
  max-width: calc(100vw - 2 * var(--space-4));
  transform: translateX(-50%);
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface-solid);
  color: var(--text);
  box-shadow: var(--shadow-3);
  font-size: var(--fs-sm);
  font-weight: 600;
  pointer-events: auto;
  animation: hk-toast-in var(--dur-3) var(--ease-out);
}
.toast i { color: var(--accent-text); }
.toast--success i { color: var(--success); }
.toast--error i { color: var(--danger); }
.toast.is-leaving { animation: hk-toast-out var(--dur-2) var(--ease-in-out) forwards; }

/* ─── 14. Navbar ───────────────────────────────────────────────────── */
.hk-navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-navbar);
  height: var(--navbar-h);
  background: var(--navbar-bg);
  border-bottom: 1px solid var(--border);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
}
.hk-navbar__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: 100%;
  max-width: calc(var(--w-page) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.hk-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex: none;
  min-height: 44px;
  margin-right: var(--space-4);
  color: var(--text);
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: var(--tracking-brand);
  text-transform: uppercase;
  white-space: nowrap;
}
.hk-brand:hover { color: var(--text); text-decoration: none; }
.hk-brand img,
.hk-brand .hk-brand-mark {
  width: 32px;
  height: 32px;
  flex: none;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--border-strong), 0 4px 14px -4px rgba(108, 99, 255, 0.7);
}
.hk-brand .hk-brand-mark {
  display: none;
  place-items: center;
  background: linear-gradient(135deg, var(--accent-fill), var(--brand-lilac));
  color: #fff;
  font-size: 0.95rem;
  letter-spacing: 0;
}
.hk-brand img.img-failed { display: none; }
/* Imagem quebrada sem substituto: esconde o texto alternativo e mostra um bloco neutro */
img.img-failed:not(.hk-brand img) {
  color: transparent;
  font-size: 0;
  background: linear-gradient(135deg, var(--accent-soft-strong), var(--surface-hover));
}
.hk-brand img.img-failed + .hk-brand-mark { display: grid; }
.hk-brand .hk-brand-plus { color: var(--gold-text); }

.hk-menu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex: 1;
  min-width: 0;
}

.hk-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}
.hk-nav a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 40px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
  transition: color var(--dur-2) var(--ease-out), background-color var(--dur-2) var(--ease-out);
}
.hk-nav a i { font-size: 0.85em; opacity: 0.7; }
.hk-nav a:hover { color: var(--text); background: var(--surface-hover); text-decoration: none; }
.hk-nav a[aria-current="page"] {
  color: var(--text);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--border-accent);
}
.hk-nav a[aria-current="page"] i { color: var(--accent-text); opacity: 1; }

.hk-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
}

.hk-user {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 40px;
  min-width: 0;
  padding: 0 var(--space-3) 0 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--surface);
  color: var(--text);
  font-size: var(--fs-sm);
  font-weight: 600;
}
.hk-user:hover { text-decoration: none; border-color: var(--border-strong); background: var(--surface-hover); }
.hk-user img {
  width: 30px;
  height: 30px;
  flex: none;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-hover);
}
.hk-user span {
  max-width: 14ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hk-tools { display: flex; align-items: center; gap: var(--space-2); flex: none; }

.hk-theme-toggle .hk-theme-icon { transition: transform var(--dur-4) var(--ease-out); }
.hk-theme-toggle .fa-sun { display: none; }
:root[data-theme="day"] .hk-theme-toggle .fa-sun { display: inline-block; }
:root[data-theme="day"] .hk-theme-toggle .fa-moon { display: none; }
.hk-theme-toggle.is-spinning .hk-theme-icon { transform: rotate(360deg); }

.hk-burger { display: none; }

@media (max-width: 960px) {
  .hk-burger { display: inline-grid; }
  .hk-brand { margin-right: auto; }

  .hk-menu {
    position: fixed;
    top: var(--navbar-h);
    left: 0;
    right: 0;
    z-index: var(--z-menu);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: var(--space-4);
    max-height: calc(100dvh - var(--navbar-h));
    padding: var(--space-4) var(--gutter) var(--space-6);
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--surface-solid);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-3);

    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out), visibility 0s linear var(--dur-2);
  }
  .hk-navbar[data-open] .hk-menu {
    visibility: visible;
    opacity: 1;
    transform: none;
    transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out), visibility 0s;
  }

  .hk-nav { flex-direction: column; align-items: stretch; gap: 2px; }
  .hk-nav a { min-height: 48px; padding: 0 var(--space-4); font-size: var(--fs-base); }

  .hk-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
  }
  .hk-actions .btn { min-height: 48px; }
  .hk-user { min-height: 48px; border-radius: var(--radius-md); padding-left: var(--space-2); }
  .hk-user span { max-width: none; }

  /* Fundo escurecido atrás do menu aberto */
  .hk-navbar[data-open]::after {
    content: "";
    position: fixed;
    inset: var(--navbar-h) 0 0;
    z-index: calc(var(--z-menu) - 1);
    background: rgba(5, 5, 12, 0.45);
  }
}

@media (max-width: 380px) {
  .hk-brand { font-size: 0.95rem; letter-spacing: 0.12em; gap: var(--space-2); }
}

/* ─── 15. Rodapé ───────────────────────────────────────────────────── */
.hk-footer {
  margin-top: auto;
  padding: var(--space-8) var(--gutter) max(var(--space-8), env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: var(--scrim-solid);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  text-align: center;
}
.hk-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-1) var(--space-2);
  margin: 0 auto var(--space-4);
  max-width: var(--w-page);
  list-style: none;
}
.hk-footer-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 36px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 550;
}
.hk-footer-links a i { font-size: 0.85em; opacity: 0.75; }
.hk-footer-links a:hover { color: var(--text); background: var(--surface-hover); text-decoration: none; }
.hk-footer-copy {
  color: var(--text-3);
  font-size: var(--fs-xs);
  line-height: var(--lh-relaxed);
}
.hk-footer-copy strong { color: var(--text-2); font-weight: 650; }

/* ─── 16. Fundo / wallpaper ────────────────────────────────────────── */
.hk-backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: var(--backdrop-fallback);
  pointer-events: none;
}
.hk-backdrop__layer {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  filter: var(--wallpaper-filter);
  opacity: 1;
  transition: opacity var(--dur-4) var(--ease-in-out);
}
.hk-backdrop__layer[data-initial] { background-image: var(--hk-wallpaper, none); }
.hk-backdrop__layer.is-entering { opacity: 0; }
.hk-backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--scrim);
}
/* Variante "plain": páginas de leitura (termos, privacidade, 404) */
.hk-backdrop--plain::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--border-strong) 1px, transparent 1.2px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 70%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 70%);
  opacity: 0.6;
}
.hk-backdrop--plain::after { background: none; }

/* ─── 17. Efeitos decorativos ──────────────────────────────────────── */
.hk-fx-canvas {
  position: fixed;
  inset: 0;
  z-index: var(--z-fx);
  pointer-events: none;
}
.hk-neon-ball {
  position: fixed;
  top: -40px;
  z-index: var(--z-fx);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  animation: hk-neon-fall linear forwards;
  will-change: transform, opacity;
}

/* Revelação ao rolar: só ativa quando o JS marca a página (sem JS, tudo visível) */
.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur-4) var(--ease-out), transform var(--dur-4) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.js-reveal [data-reveal].is-visible { opacity: 1; transform: none; }

/* ─── 18. Keyframes ────────────────────────────────────────────────── */
@keyframes hk-spin { to { transform: rotate(360deg); } }
@keyframes hk-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes hk-dialog-in { from { opacity: 0; transform: translateY(8px) scale(0.97); } to { opacity: 1; transform: none; } }
@keyframes hk-toast-in { from { opacity: 0; transform: translateY(10px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes hk-toast-out { to { opacity: 0; transform: translateY(6px) scale(0.98); } }
@keyframes hk-shimmer { to { transform: translateX(100%); } }
@keyframes hk-pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, currentColor 55%, transparent); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
@keyframes hk-neon-fall {
  0% { opacity: 0; transform: translate3d(0, 0, 0) scale(0.4); }
  10% { opacity: 0.9; }
  85% { opacity: 0.7; }
  100% { opacity: 0; transform: translate3d(var(--drift, 0px), 110vh, 0) scale(0.9); }
}

/* ─── 19. Movimento reduzido ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .js-reveal [data-reveal] { opacity: 1; transform: none; }
  .skeleton::after { display: none; }
  .hk-neon-ball,
  .hk-fx-canvas { display: none !important; }
}

/* ─── 20. Impressão (termos e privacidade) ─────────────────────────── */
@media print {
  .hk-navbar,
  .hk-footer,
  .hk-backdrop,
  .toast-region,
  .hk-fx-canvas { display: none !important; }
  body { background: #fff; color: #000; }
  .card { box-shadow: none; border-color: #ccc; background: #fff; backdrop-filter: none; }
}