/* ==========================================================================
   SIMAD — Design System
   Tokens extraídos do Manual de Identidade Visual (auten.design, 2026)
   ========================================================================== */

@font-face {
  font-family: 'Peace Sans';
  src: url('assets/fonts/Peace Sans Webfont.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  /* --- Cor: paleta oficial (seção 3 do manual) --- */
  --color-deep-blue: #1D2042;   /* Azul Profundo — base institucional, textos, fundos densos */
  --color-navy: #203A75;        /* Azul Marinho — cor protagonista, logotipo principal */
  --color-cyan: #7DC7D9;        /* Ciano — clareza e transparência */
  --color-off-white: #ECF0F5;   /* Off White — neutra estrutural, fundo principal */
  --color-light-blue: #769FD4;  /* Azul Claro — respiro, fundos alternativos */

  --color-white: #FFFFFF;

  /* aliases semânticos */
  --bg-page: var(--color-off-white);
  --bg-surface: var(--color-white);
  --text-primary: var(--color-deep-blue);
  --text-muted: #4B5573;
  --accent: var(--color-navy);
  --accent-soft: var(--color-cyan);
  --chip-bg: rgba(32,58,117,0.1);
  --chip-text: var(--color-navy);

  /* --- Tipografia (seção 4 do manual) --- */
  --font-display: 'Peace Sans', 'Segoe UI', sans-serif;
  --font-body: 'Bricolage Grotesque', 'Segoe UI', sans-serif;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.75rem;
  --fs-4xl: 4rem;

  /* --- Espaçamento (respiro visual generoso, conforme diretrizes de uso) --- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;
  --space-7: 6rem;

  /* --- Raio e sombra --- */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(29, 32, 66, 0.08);
  --shadow-md: 0 8px 24px rgba(29, 32, 66, 0.10);
  --shadow-lg: 0 20px 48px rgba(29, 32, 66, 0.16);

  --border-hairline: 1px solid rgba(29, 32, 66, 0.12);
  --input-border: rgba(29, 32, 66, 0.2);
  --alert-info-text: var(--color-deep-blue);
  --container-max: 1180px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #14162E;
    --bg-surface: #1D2042;
    --text-primary: var(--color-off-white);
    --text-muted: #A9B4CE;
    --border-hairline: 1px solid rgba(236, 240, 245, 0.14);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.35);
    --shadow-lg: 0 20px 48px rgba(0,0,0,0.45);
    --accent: var(--color-light-blue);
    --chip-bg: rgba(118,159,212,0.2);
    --chip-text: var(--color-light-blue);
    --input-border: rgba(236, 240, 245, 0.28);
    --alert-info-text: var(--color-off-white);
  }
}

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

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.1;
  margin: 0 0 var(--space-3);
  color: var(--text-primary);
}
p { margin: 0 0 var(--space-3); color: var(--text-muted); }
code {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  background: rgba(29,32,66,0.06);
  padding: 0.15em 0.45em;
  border-radius: 4px;
  font-size: 0.9em;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-2);
}

section.doc-section {
  padding: var(--space-7) 0;
  border-bottom: var(--border-hairline);
}
section.doc-section > .container > .section-head {
  max-width: 640px;
  margin-bottom: var(--space-5);
}
.section-head h2 { font-size: var(--fs-3xl); }
.section-head p { font-size: var(--fs-lg); }

/* ==========================================================================
   Layout shell: top nav
   ========================================================================== */

.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(236, 240, 245, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-hairline);
}
@media (prefers-color-scheme: dark) {
  .topnav { background: rgba(20, 22, 46, 0.85); }
}
.topnav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: var(--space-4);
}
.topnav .brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  font-size: var(--fs-lg);
}
.topnav .brand img { height: 28px; width: auto; }
.topnav nav {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
}
.topnav nav a {
  font-size: var(--fs-sm);
  font-weight: 600;
  text-decoration: none;
  color: var(--text-muted);
  white-space: nowrap;
}
.topnav nav a:hover { color: var(--accent); }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  background: var(--color-deep-blue);
  color: var(--color-off-white);
  padding: var(--space-7) 0 var(--space-6);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('assets/logo/pattern-deep-blue.png');
  background-size: 420px;
  filter: invert(1) brightness(1.4);
  opacity: 0.05;
  pointer-events: none;
}
.hero .container { position: relative; }
.hero .eyebrow { color: var(--color-cyan); }
.hero-logo { width: 84px; margin-bottom: var(--space-4); }
.hero h1 {
  color: var(--color-off-white);
  font-size: var(--fs-4xl);
  max-width: 16ch;
}
.hero p.lede {
  color: rgba(236,240,245,0.78);
  font-size: var(--fs-xl);
  max-width: 46ch;
  margin-bottom: var(--space-5);
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.hero-meta .chip {
  border: 1px solid rgba(236,240,245,0.28);
  color: rgba(236,240,245,0.9);
}

/* ==========================================================================
   Color swatches
   ========================================================================== */

.color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
}
.swatch {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--bg-surface);
  border: var(--border-hairline);
}
.swatch-color { height: 140px; box-shadow: inset 0 -1px 0 rgba(128,128,128,0.35); }
.swatch-body { padding: var(--space-4); }
.swatch-name { font-weight: 700; font-size: var(--fs-lg); margin-bottom: var(--space-1); color: var(--text-primary); }
.swatch-role { font-size: var(--fs-sm); color: var(--accent); font-weight: 600; margin-bottom: var(--space-2); }
.swatch-codes { display: flex; flex-direction: column; gap: 2px; font-size: var(--fs-xs); font-family: 'Consolas', monospace; color: var(--text-muted); margin-bottom: var(--space-2); }
.swatch-desc { font-size: var(--fs-sm); margin: 0; }

/* ==========================================================================
   Typography specimens
   ========================================================================== */

.type-specimen {
  background: var(--bg-surface);
  border: var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-4);
}
.type-specimen header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-hairline);
}
.type-specimen h3 { font-size: var(--fs-xl); margin: 0; }
.type-specimen .meta { font-size: var(--fs-sm); color: var(--text-muted); font-family: var(--font-body); text-transform: none; letter-spacing: normal; }
.type-specimen .sample-display {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-3);
  word-break: break-word;
}
.type-specimen .sample-body {
  font-family: var(--font-body);
  font-size: var(--fs-lg);
  color: var(--text-primary);
  text-transform: none;
  letter-spacing: normal;
}
.type-scale-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  padding: var(--space-2) 0;
  border-bottom: 1px dashed rgba(29,32,66,0.12);
}
.type-scale-row:last-child { border-bottom: none; }
.type-scale-row .label { font-family: var(--font-body); font-size: var(--fs-xs); color: var(--text-muted); width: 90px; flex-shrink: 0; text-transform: uppercase; letter-spacing: 0.06em; }
.type-scale-row .sample { font-family: var(--font-body); color: var(--text-primary); }

.font-note {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  background: rgba(125,199,217,0.14);
  border: 1px solid rgba(125,199,217,0.4);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
}
.font-note strong { color: var(--text-primary); }

/* ==========================================================================
   Logo showcase
   ========================================================================== */

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
}
.logo-card {
  border-radius: var(--radius-lg);
  border: var(--border-hairline);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.logo-card .stage {
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}
.logo-card .stage img { max-height: 100%; width: auto; object-fit: contain; }
.logo-card .stage.on-light { background: var(--color-off-white); }
.logo-card .stage.on-dark { background: var(--color-deep-blue); }
.logo-card .stage.on-navy { background: var(--color-navy); }
.logo-card .caption {
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface);
  font-size: var(--fs-sm);
}
.logo-card .caption strong { display: block; color: var(--text-primary); font-size: var(--fs-base); }

.clearspace-demo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-cyan);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  background: var(--color-off-white);
}
.clearspace-demo img { width: 100px; }

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-5);
}
.rules-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.rules-list li { display: flex; gap: var(--space-2); font-size: var(--fs-sm); color: var(--text-muted); }
.rules-list .mark { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; margin-top: 2px; }
.rules-list.do .mark { background: rgba(125,199,217,0.25); color: var(--color-navy); }
.rules-list.dont .mark { background: rgba(29,32,66,0.08); color: var(--color-deep-blue); }
.rules-title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--space-3); display: flex; align-items: center; gap: var(--space-2); }

/* ==========================================================================
   Concept / archetype cards
   ========================================================================== */

.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
}
.concept-card {
  background: var(--bg-surface);
  border: var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
}
.concept-card .num { font-family: var(--font-display); font-size: var(--fs-sm); color: var(--accent-soft); background: var(--color-deep-blue); display: inline-flex; align-items:center; justify-content:center; width: 32px; height: 32px; border-radius: 50%; margin-bottom: var(--space-3); }
.concept-card h4 { font-size: var(--fs-base); margin-bottom: var(--space-2); }
.concept-card p { font-size: var(--fs-sm); margin: 0; }

.pillar-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
}
.pillar {
  border-left: 3px solid var(--color-cyan);
  padding: var(--space-2) var(--space-3);
  background: rgba(125,199,217,0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.pillar strong { display: block; color: var(--text-primary); font-size: var(--fs-sm); margin-bottom: 2px; }
.pillar span { font-size: var(--fs-xs); color: var(--text-muted); }

blockquote.slogan {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: var(--fs-2xl);
  color: var(--accent);
  border: none;
  margin: var(--space-4) 0;
  padding: 0;
}
blockquote.slogan cite { display: block; font-family: var(--font-body); text-transform: none; font-style: normal; font-size: var(--fs-xs); color: var(--text-muted); letter-spacing: normal; margin-top: var(--space-2); }

/* ==========================================================================
   Pattern showcase
   ========================================================================== */

.pattern-strip {
  height: 180px;
  border-radius: var(--radius-lg);
  background-image: url('assets/logo/pattern-deep-blue.png');
  background-size: 260px;
  background-repeat: repeat;
  border: var(--border-hairline);
  box-shadow: var(--shadow-sm);
}
.pattern-strip.inverted {
  background-color: var(--color-deep-blue);
  filter: invert(1) hue-rotate(180deg);
}

/* ==========================================================================
   Components: buttons, chips, forms, cards, alerts
   ========================================================================== */

.component-block {
  background: var(--bg-surface);
  border: var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-sm);
}
.component-block > .label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: var(--space-3);
}
.row-wrap { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }

.btn {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-sm);
  border-radius: 999px;
  padding: 0.75em 1.6em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--color-navy); color: var(--color-off-white); }
.btn-primary:hover { background: var(--color-deep-blue); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--color-cyan); color: var(--color-deep-blue); }
.btn-accent:hover { box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; border-color: var(--accent); color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: var(--color-off-white); }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-ghost:hover { background: rgba(32,58,117,0.08); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn-sm { padding: 0.5em 1.1em; font-size: var(--fs-xs); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-size: var(--fs-xs);
  font-weight: 700;
  padding: 0.4em 0.9em;
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--chip-text);
}
.chip.cyan { background: rgba(125,199,217,0.25); color: var(--color-deep-blue); }
.chip.outline { background: transparent; border: 1px solid currentColor; }
.chip.solid-dark { background: var(--color-deep-blue); color: var(--color-off-white); }

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4em;
  max-width: 320px;
}
.field label { font-size: var(--fs-xs); font-weight: 700; color: var(--text-primary); text-transform: uppercase; letter-spacing: 0.04em; }
.field input, .field select, .field textarea {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  padding: 0.7em 0.9em;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--input-border);
  background: var(--bg-page);
  color: var(--text-primary);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(125,199,217,0.35);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
}
.ui-card {
  border-radius: var(--radius-md);
  border: var(--border-hairline);
  overflow: hidden;
  background: var(--bg-page);
}
.ui-card .banner { height: 8px; background: var(--color-cyan); }
.ui-card .content { padding: var(--space-3); }
.ui-card h4 { font-size: var(--fs-base); text-transform: none; letter-spacing: normal; font-family: var(--font-body); font-weight: 700; margin-bottom: var(--space-1); }
.ui-card p { font-size: var(--fs-sm); margin-bottom: var(--space-2); }
.ui-card .meta-row { display: flex; justify-content: space-between; align-items: center; font-size: var(--fs-xs); color: var(--text-muted); }

.alert {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-2);
}
.alert.info { background: rgba(125,199,217,0.16); color: var(--alert-info-text); border: 1px solid rgba(125,199,217,0.5); }
.alert.dark { background: var(--color-deep-blue); color: var(--color-off-white); }
.alert strong { display: block; }

table.token-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
table.token-table th, table.token-table td { text-align: left; padding: var(--space-2) var(--space-3); border-bottom: var(--border-hairline); }
table.token-table th { text-transform: uppercase; font-size: var(--fs-xs); letter-spacing: 0.06em; color: var(--text-muted); }
table.token-table td code { white-space: nowrap; }
.swatch-dot { display: inline-block; width: 14px; height: 14px; border-radius: 4px; margin-right: 8px; vertical-align: middle; box-shadow: 0 0 0 1px rgba(128,128,128,0.4); }

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

footer.site-footer {
  background: var(--color-deep-blue);
  color: rgba(236,240,245,0.7);
  padding: var(--space-5) 0;
  font-size: var(--fs-sm);
}
footer.site-footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-2); }
footer.site-footer strong { color: var(--color-off-white); }
.brand-mark {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

@media (max-width: 720px) {
  .hero h1 { font-size: var(--fs-3xl); }
  .type-specimen .sample-display { font-size: var(--fs-3xl); }
  section.doc-section { padding: var(--space-6) 0; }
}