/* ============================================================
   Pedro Missawa — Site System
   Design System: V3 Moderna (azul petróleo + prata + verde)
   ============================================================ */

:root {
  /* Cores ativas (V3 Moderna) */
  --color-primary:   oklch(0.32 0.05 238);   /* azul petróleo */
  --color-primary-d: oklch(0.22 0.05 238);   /* azul mais escuro */
  --color-secondary: oklch(0.72 0.01 240);   /* prata (elementos) */
  --color-accent:    oklch(0.62 0.10 160);   /* verde vibrante */
  --color-accent-d:  oklch(0.50 0.10 160);   /* verde escuro p/ texto */

  /* Backgrounds */
  --bg-canvas:    oklch(0.98 0.003 238);
  --bg-surface:   oklch(0.99 0.002 238);
  --bg-raised:    oklch(1.00 0 0);
  --bg-tint:      oklch(0.96 0.005 240);
  --bg-accent-s:  oklch(0.96 0.012 165);

  /* Texto */
  --fg:        oklch(0.18 0.012 240);
  --fg-soft:   oklch(0.35 0.012 240);
  --fg-muted:  oklch(0.55 0.010 240);
  --fg-faint:  oklch(0.72 0.008 240);

  /* Bordas */
  --border:        oklch(0.90 0.006 240);
  --border-strong: oklch(0.82 0.008 240);

  /* Flamengo (override usado APENAS na /flamengo) */
  --flamengo-red:   oklch(0.55 0.22 25);
  --flamengo-red-d: oklch(0.42 0.22 25);
  --flamengo-black: oklch(0.16 0.01 0);

  /* Typography */
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-sans:    'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-serif:   'DM Serif Display', Georgia, serif;
  --font-mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, 'SF Mono', Consolas, monospace;

  /* Escala fluida (clamp para mobile→desktop) */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  clamp(1.375rem, 1.2rem + 0.6vw, 1.625rem);
  --text-3xl:  clamp(1.625rem, 1.4rem + 1vw, 2rem);
  --text-4xl:  clamp(2rem, 1.6rem + 1.6vw, 2.75rem);
  --text-5xl:  clamp(2.5rem, 1.8rem + 3vw, 4rem);
  --text-6xl:  clamp(3rem, 2rem + 5vw, 5.5rem);

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows (sutis — discreto) */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.04);
  --shadow-md: 0 4px 8px -2px rgb(0 0 0 / 0.06), 0 2px 4px -2px rgb(0 0 0 / 0.04);
  --shadow-lg: 0 16px 32px -8px rgb(0 0 0 / 0.08), 0 4px 8px -4px rgb(0 0 0 / 0.04);

  /* Layout */
  --container: 1200px;
  --container-tight: 760px;
  --header-h: 4.5rem;
}

/* ============================================================
   Reset & base
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01', 'cv11';
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  text-wrap: balance;
}

p { text-wrap: pretty; }

::selection {
  background: var(--color-accent);
  color: white;
}

/* ============================================================
   Layout primitives
   ============================================================ */

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.container-tight {
  max-width: var(--container-tight);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.section {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.section-tight {
  padding-block: clamp(2rem, 4vw, 3.5rem);
}

/* ============================================================
   Typography utilities
   ============================================================ */

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-d);
}

.dim { color: var(--fg-soft); }
.faint { color: var(--fg-muted); }

.tabular { font-variant-numeric: tabular-nums; }

/* ============================================================
   Header / Nav (global)
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklch, var(--bg-canvas) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  height: var(--header-h);
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.brand__dot {
  width: 0.45rem;
  height: 0.45rem;
  background: var(--color-accent);
  border-radius: 50%;
  display: inline-block;
  transform: translateY(-1px);
}

.brand small {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-left: 0.4rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.5vw, 1.25rem);
}

.nav__link {
  position: relative;
  padding: 0.45rem 0.65rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--fg-soft);
  border-radius: var(--radius-md);
  transition: color .2s, background .2s;
}

.nav__link:hover {
  color: var(--color-primary);
  background: var(--bg-tint);
}

.nav__link[aria-current="page"] {
  color: var(--color-primary);
  font-weight: 600;
}

.nav__link[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 0.65rem;
  right: 0.65rem;
  bottom: -0.45rem;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.nav__cta {
  padding: 0.5rem 0.95rem;
  background: var(--color-primary);
  color: white;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background .2s, transform .2s;
}

.nav__cta:hover {
  background: var(--color-primary-d);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  border-radius: var(--radius-md);
}

.nav-toggle:hover { background: var(--bg-tint); }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }

  .nav {
    display: none;
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-canvas);
    border-bottom: 1px solid var(--border);
    padding: var(--space-md);
    box-shadow: var(--shadow-lg);
  }

  .nav[data-open="true"] {
    display: flex;
    animation: navSlideDown .22s ease;
  }

  @keyframes navSlideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .nav__link {
    padding: 0.85rem 0.75rem;
    font-size: var(--text-base);
    border-bottom: 1px solid var(--border);
  }

  .nav__link[aria-current="page"]::after { display: none; }
  .nav__link[aria-current="page"] {
    background: var(--bg-tint);
  }

  .nav__cta {
    display: none;
  }
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.25rem;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.005em;
  border-radius: var(--radius-md);
  transition: all .2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--color-primary-d);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--accent {
  background: var(--color-accent-d);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn--accent:hover {
  background: oklch(0.42 0.10 160);
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--color-primary);
  border: 1.5px solid var(--border-strong);
}

.btn--ghost:hover {
  background: var(--bg-tint);
  border-color: var(--color-primary);
}

.btn--link {
  padding: 0;
  font-weight: 600;
  color: var(--color-accent-d);
}

.btn--link::after {
  content: '→';
  display: inline-block;
  margin-left: 0.25rem;
  transition: transform .2s;
}

.btn--link:hover::after { transform: translateX(3px); }

/* ============================================================
   Cards & surfaces
   ============================================================ */

.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}

.card--hover:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ============================================================
   Footer
   ============================================================ */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
  padding-block: var(--space-2xl) var(--space-xl);
  margin-top: var(--space-4xl);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-2xl);
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.site-footer h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 0.4rem; }
.site-footer a {
  color: var(--fg-soft);
  font-size: var(--text-sm);
  transition: color .2s;
}
.site-footer a:hover { color: var(--color-accent-d); }

.site-footer__bottom {
  max-width: var(--container);
  margin-inline: auto;
  margin-top: var(--space-2xl);
  padding: var(--space-md) clamp(1.25rem, 4vw, 2.5rem) 0;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--text-xs);
  color: var(--fg-muted);
}

.site-footer__sig {
  font-family: var(--font-mono);
}

@media (max-width: 720px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* ============================================================
   Tag chips
   ============================================================ */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.7rem;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--fg-soft);
  background: var(--bg-tint);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
}

.tag--accent {
  color: var(--color-accent-d);
  background: var(--bg-accent-s);
  border-color: color-mix(in oklch, var(--color-accent) 25%, transparent);
}

/* ============================================================
   Decorative grid background (subtle)
   ============================================================ */

.bg-grid {
  background-image:
    linear-gradient(to right, color-mix(in oklch, var(--color-primary) 5%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklch, var(--color-primary) 5%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
}

/* ============================================================
   Helpers
   ============================================================ */

.flow > * + * { margin-top: var(--flow, 1rem); }
.stack { display: flex; flex-direction: column; }
.row { display: flex; align-items: center; gap: var(--gap, 1rem); flex-wrap: wrap; }

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



/* ============================================================
   FLAMENGO — variáveis compartilhadas e tema gated.
   Ativado quando <html class="theme-flamengo">. Usado por
   flamengo.html (sempre) e post.html (quando tag=flamengo).
   ============================================================ */

:root {
  --flam-red:    oklch(0.55 0.22 25);
  --flam-red-d:  oklch(0.42 0.22 25);
  --flam-red-l:  oklch(0.65 0.20 25);
  --flam-black:  oklch(0.14 0.012 25);
  --flam-jet:    oklch(0.08 0.008 25);
  --flam-cream:  oklch(0.96 0.012 80);
  --flam-grey:   oklch(0.62 0.008 25);
}

html.theme-flamengo body {
  background: var(--flam-black);
  color: var(--flam-cream);
}

html.theme-flamengo ::selection {
  background: var(--flam-red);
  color: var(--flam-cream);
}

html.theme-flamengo h1,
html.theme-flamengo h2,
html.theme-flamengo h3,
html.theme-flamengo h4,
html.theme-flamengo h5,
html.theme-flamengo h6 {
  color: var(--flam-cream);
}

html.theme-flamengo .site-header {
  background: color-mix(in oklch, var(--flam-jet) 92%, transparent);
  border-bottom: 1px solid color-mix(in oklch, var(--flam-red) 30%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
}

html.theme-flamengo .brand { color: var(--flam-cream); }
html.theme-flamengo .brand__dot { background: var(--flam-red); }

html.theme-flamengo .nav__link { color: color-mix(in oklch, var(--flam-cream) 70%, transparent); }
html.theme-flamengo .nav__link:hover {
  color: var(--flam-cream);
  background: color-mix(in oklch, var(--flam-red) 18%, transparent);
}

html.theme-flamengo .nav__link[aria-current="page"] {
  color: var(--flam-cream);
}

html.theme-flamengo .nav__link[aria-current="page"]::after {
  background: var(--flam-red);
}

html.theme-flamengo .nav__cta {
  background: var(--flam-red);
  color: var(--flam-cream);
}

html.theme-flamengo .nav__cta:hover { background: var(--flam-red-d); }

html.theme-flamengo .nav-toggle { color: var(--flam-cream); }
html.theme-flamengo .nav-toggle:hover { background: color-mix(in oklch, var(--flam-red) 18%, transparent); }

@media (max-width: 880px) {
  html.theme-flamengo .nav {
    background: var(--flam-jet);
    border-bottom: 1px solid color-mix(in oklch, var(--flam-red) 30%, transparent);
  }
  html.theme-flamengo .nav__link {
    border-color: color-mix(in oklch, var(--flam-cream) 12%, transparent);
  }
  html.theme-flamengo .nav__link[aria-current="page"] {
    background: color-mix(in oklch, var(--flam-red) 18%, transparent);
  }
}

html.theme-flamengo .site-footer {
  background: var(--flam-jet);
  border-top: 1px solid color-mix(in oklch, var(--flam-red) 30%, transparent);
  color: color-mix(in oklch, var(--flam-cream) 75%, transparent);
}

html.theme-flamengo .site-footer h4 { color: color-mix(in oklch, var(--flam-cream) 55%, transparent); }
html.theme-flamengo .site-footer a { color: color-mix(in oklch, var(--flam-cream) 70%, transparent); }
html.theme-flamengo .site-footer a:hover { color: var(--flam-red); }

html.theme-flamengo .site-footer__bottom {
  border-color: color-mix(in oklch, var(--flam-cream) 10%, transparent);
  color: color-mix(in oklch, var(--flam-cream) 55%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}