/* ==========================================================================
   ODISSEU ENGENHARIA E PROJETOS: Design System
   Fonte da verdade visual do site. Baseado no manual de identidade (2024).
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Cores da marca (manual, seção "Code Color") */
  --delfit-blue:      #2C3B5E;  /* Pantone 533 U: cor principal */
  --blue-ncs:         #657981;  /* Pantone 444 C: apoio */
  --anti-flash-white: #EFF0F1;  /* Pantone Cool Gray 1 C: superfícies */
  --bright-white:     #FFFFFF;

  /* Derivadas (tints/shades para UI) */
  --delfit-blue-dark:  #1E2A45; /* fundos hero / navbar sobre foto */
  --delfit-blue-deep:  #16203A; /* quase-preto da marca */
  --delfit-blue-soft:  #E4E8F0; /* tint p/ fundos sutis */
  --blue-ncs-light:    #8B9BA3;
  --blue-ncs-soft:     #DEE4E6;

  /* Papéis semânticos */
  --color-bg:            var(--bright-white);
  --color-surface:       var(--anti-flash-white);
  --color-ink:           var(--delfit-blue-deep);   /* texto principal */
  --color-ink-muted:     #5A6472;                   /* texto secundário */
  --color-ink-inverse:   var(--bright-white);
  --color-brand:         var(--delfit-blue);
  --color-brand-hover:   #38497A;
  --color-accent:        var(--blue-ncs);
  --color-line:          #D8DCE0;                   /* bordas e réguas */

  /* Tipografia
     Original da marca: BC Novatica CYR SemiBold (títulos).
     Substituta web: Bricolage Grotesque. Serif itálica de apoio (slogans): Lora. */
  --font-display: "Bricolage Grotesque", "BC Novatica CYR", system-ui, sans-serif;
  --font-body:    "Bricolage Grotesque", system-ui, sans-serif;
  --font-accent:  "Lora", Georgia, serif;

  --text-display: clamp(2.5rem, 5vw, 3.75rem);  /* 40–60px */
  --text-h1:      clamp(2rem, 4vw, 2.75rem);    /* 32–44px */
  --text-h2:      clamp(1.5rem, 3vw, 2rem);     /* 24–32px */
  --text-h3:      1.375rem;                     /* 22px */
  --text-lead:    1.125rem;                     /* 18px */
  --text-body:    1rem;                         /* 16px */
  --text-small:   0.875rem;                     /* 14px */
  --text-overline: 0.75rem;                     /* 12px, caps */

  /* Espaçamento (base 4px) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Forma brutalista: cantos vivos, sombras duras, bordas francas */
  --radius-sm: 0;
  --radius-md: 0;
  --radius-pill: 0;
  --border-strong: 2px solid var(--delfit-blue);
  --shadow-card: 8px 8px 0 var(--delfit-blue);      /* sombra dura, sem blur */
  --shadow-card-soft: 8px 8px 0 var(--delfit-blue-soft);
  --shadow-soft: 4px 4px 0 var(--delfit-blue-soft);

  /* Motivos da marca: cortes diagonais e chanfros triangulares */
  --cut-diagonal: polygon(0 0, 100% 0, 100% 70%, 0 100%);
  --chamfer: 3rem; /* tamanho do canto cortado */
  --cut-corner-tr: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, 0 100%);
  --cut-corner-bl: polygon(0 0, 100% 0, 100% 100%, var(--chamfer) 100%, 0 calc(100% - var(--chamfer)));

  --container: 72rem; /* 1152px */
}

/* --------------------------------------------------------------------------
   2. BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-brand);
  margin: 0 0 var(--space-4);
  letter-spacing: -0.01em;
}
h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }

p { margin: 0 0 var(--space-4); }

a {
  color: var(--color-brand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
a:hover { border-bottom-color: currentColor; }

img { max-width: 100%; display: block; }

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* --------------------------------------------------------------------------
   3. UTILITÁRIOS DE MARCA
   -------------------------------------------------------------------------- */

/* Rótulo em caixa alta (usado como "Apresentação", categorias etc.) */
.overline {
  font-size: var(--text-overline);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* Slogan / destaque serifado itálico: "Semper Paratus" */
.accent-serif {
  font-family: var(--font-accent);
  font-style: italic;
  font-weight: 500;
}

.lead { font-size: var(--text-lead); color: var(--color-ink-muted); }

.text-muted { color: var(--color-ink-muted); }

/* Seções escuras (hero, faixas institucionais) */
.section-dark {
  background: var(--delfit-blue-dark);
  color: var(--color-ink-inverse);
}
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--bright-white); }
.section-dark .overline { color: var(--blue-ncs-light); }
.section-dark a { color: var(--bright-white); }

.section-surface { background: var(--color-surface); }

/* Duotone azul sobre fotos (linguagem dos materiais impressos) */
.img-duotone {
  position: relative;
  overflow: hidden;
}
.img-duotone img { filter: grayscale(1) contrast(1.05); }
.img-duotone::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--delfit-blue);
  mix-blend-mode: multiply;
  opacity: 0.82;
}

/* Cortes triangulares: assinatura visual (o símbolo termina em triângulo) */
.cut-bottom { clip-path: var(--cut-diagonal); }
.cut-corner-tr { clip-path: var(--cut-corner-tr); }
.cut-corner-bl { clip-path: var(--cut-corner-bl); }

/* Marcador triangular para listas e títulos de seção */
.tri-marker::before {
  content: "";
  display: inline-block;
  width: 0.65em;
  height: 0.65em;
  margin-right: 0.6em;
  background: currentColor;
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

/* --------------------------------------------------------------------------
   4. COMPONENTES
   -------------------------------------------------------------------------- */

/* Botões: retos, caixa alta, sombra dura que "assenta" no hover */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-small);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 1.75rem;
  border-radius: 0;
  border: 2px solid var(--color-brand);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease, color 0.12s ease;
}
.btn-primary {
  background: var(--color-brand);
  color: var(--bright-white);
  box-shadow: 5px 5px 0 var(--delfit-blue-soft);
}
.btn-primary:hover {
  transform: translate(3px, 3px);
  box-shadow: 2px 2px 0 var(--delfit-blue-soft);
  border-bottom-color: var(--color-brand);
}

.btn-outline {
  background: transparent;
  color: var(--color-brand);
}
.btn-outline:hover {
  background: var(--color-brand);
  color: var(--bright-white);
  border-bottom-color: var(--color-brand);
}

.section-dark .btn-outline { color: var(--bright-white); border-color: var(--bright-white); }
.section-dark .btn-outline:hover { background: var(--bright-white); color: var(--color-brand); }

/* Link com traço (padrão "Fale com a gente ▸") */
.link-action {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-small);
  letter-spacing: 0.06em;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.35rem;
}

/* Cards: moldura franca + sombra dura; variante com chanfro triangular */
.card {
  background: var(--bright-white);
  border: var(--border-strong);
  box-shadow: var(--shadow-card);
  padding: var(--space-8);
}
.card-flat {
  background: var(--color-surface);
  border: var(--border-strong);
  padding: var(--space-8);
}
.card-chamfer {
  background: var(--bright-white);
  clip-path: var(--cut-corner-tr);
  border-top: 4px solid var(--color-brand);
  padding: var(--space-8);
}

/* Formulários */
.field { display: grid; gap: var(--space-2); }
.field label {
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--color-ink);
}
.field input,
.field textarea,
.field select {
  font: inherit;
  color: var(--color-ink);
  background: var(--bright-white);
  border: 2px solid var(--color-ink);
  border-radius: 0;
  padding: 0.7rem 0.9rem;
  transition: box-shadow 0.12s ease, border-color 0.12s ease;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 4px 4px 0 var(--delfit-blue-soft);
}

/* Régua fina: linhas de apoio usadas no manual */
.rule {
  border: 0;
  border-top: 1px solid var(--color-line);
  margin: var(--space-12) 0;
}

/* Scrollbar nas cores da marca: reta e sem raio, como o resto do sistema */
html {
  scrollbar-color: var(--delfit-blue) var(--anti-flash-white); /* Firefox */
}
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--anti-flash-white); }
::-webkit-scrollbar-thumb {
  background: var(--delfit-blue);
  border: 2px solid var(--anti-flash-white);
  border-radius: 0;
}
::-webkit-scrollbar-thumb:hover { background: var(--delfit-blue-deep); }