/**
 * Nepfy Client Sites — Design Tokens
 * Estruturais (fixos) + adaptáveis (sobrescrever em theme.css do cliente)
 * @see clients/SYSTEM.md
 */

:root {
  /* ── Estruturais ── */
  --max-width: 1200px;
  --header-height: 76px;
  --topbar-height: 0px;
  --section-spacing: clamp(72px, 10vw, 120px);
  --radius-sm: 4px;
  --radius-lg: 12px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  --font-display: "Montserrat", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  /* ── Adaptáveis (defaults neutros — substituir por cliente) ── */
  --color-primary-950: #0a1520;
  --color-primary-900: #161616;
  --color-primary-700: #3d4f5c;
  --color-primary-500: #5a7280;
  --color-accent: #005285;
  --color-accent-bright: #1a7ab8;
  --color-surface: #ffffff;
  --color-background: #f4f7fa;
  --color-text: #161616;
  --color-text-muted: #4a5560;

  /* ── Derivados (calculados a partir dos adaptáveis) ── */
  --color-on-dark: #ffffff;
  --color-on-dark-muted: rgba(255, 255, 255, 0.72);
  --color-on-dark-subtle: rgba(255, 255, 255, 0.55);
  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-strong: color-mix(in srgb, var(--color-primary-950) 12%, transparent);
  --color-border-on-dark: rgba(255, 255, 255, 0.12);

  --color-section-alt: color-mix(in srgb, var(--color-background) 55%, var(--color-primary-500) 4%);
  --color-section-dark: var(--color-primary-950);

  --shadow-btn: 0 16px 40px color-mix(in srgb, var(--color-primary-950) 35%, transparent);
  --shadow-card: 0 24px 60px color-mix(in srgb, var(--color-primary-950) 10%, transparent);
  --shadow-card-hover: 0 28px 72px color-mix(in srgb, var(--color-primary-950) 14%, transparent);

  --grain-opacity: 0.035;

  /* Fotos — definir em theme.css */
  --photo-hero: none;
  --photo-hero-position: center 30%;
  --photo-cta: var(--photo-hero);
  --photo-cta-position: center 35%;

  /* Header scroll: light = fundo claro ao rolar | dark = fundo escuro ao rolar */
  --header-scrolled-mode: light;
  --header-scrolled-bg-light: rgba(255, 255, 255, 0.82);
  --header-scrolled-bg-dark: rgba(0, 0, 0, 0.88);
  --header-scrolled-border: color-mix(in srgb, var(--color-primary-950) 8%, transparent);

  /* WhatsApp (fixo — cor universal) */
  --color-wa: #25d366;
  --color-wa-dark: #128c7e;

  /* Scroll padding (header + topbar) */
  --scroll-offset: calc(var(--topbar-height) + var(--header-height));
}

/* ── Reset mínimo ── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--scroll-offset);
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 0.98;
  margin: 0;
  letter-spacing: -0.02em;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}