/* ConsultaDentária.pt — Base Layer v1.0
   Tokens (:root), reset, body, skip-link, top-note.
   Load this first on every page. */

/* ── DESIGN TOKENS ──────────────────────────── */
:root {
  /* Fonts */
  --font-heading: "Montserrat", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body:    "Open Sans",  system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Backgrounds */
  --color-bg:          #f5f8fb;
  --color-bg-soft:     #eef7fb;
  --color-surface:     #ffffff;
  --color-surface-alt: #f8fbfd;

  /* Brand */
  --color-primary:       #1479bd;
  --color-primary-hover: #0d6098;
  --color-primary-soft:  #e7f3fb;
  --color-secondary:     #0f8f94;
  --color-secondary-soft:#e5f7f6;

  /* Semantic */
  --color-accent:      #f5b85f;
  --color-accent-soft: #fff4df;
  --color-danger:      #c2413b;
  --color-danger-soft: #fff1f0;
  --color-success:     #2f855a;

  /* Text */
  --color-text:        #152033;
  --color-text-strong: #0f172a;
  --color-text-muted:  #5f6f82;

  /* Borders */
  --color-border-subtle: #dce7ef;
  --color-border-strong: #b9cfdd;

  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-xxl: 64px;

  /* Border radius */
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-xl: 34px;

  /* Shadows */
  --shadow-xs:      0 4px  14px rgba(15,23,42,.05);
  --shadow-sm:      0 12px 28px rgba(15,23,42,.07);
  --shadow-md:      0 18px 45px rgba(15,23,42,.09);
  --shadow-primary: 0 14px 32px rgba(20,121,189,.24);
}

/* ── RESET ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

/* ── SKIP LINK ──────────────────────────────── */
.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--color-surface);
  color: var(--color-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  z-index: 999;
  box-shadow: var(--shadow-sm);
}
.skip-link:focus { left: 8px; }

/* ── TOP NOTE ───────────────────────────────── */
.top-note {
  background: linear-gradient(90deg, var(--color-primary-soft), #fff);
  border-bottom: 1px solid var(--color-border-subtle);
  color: #1d4f63;
  text-align: center;
  padding: 10px 18px;
  font-size: 14px;
}
.top-note strong { font-weight: 700; }