/* =========================================================
   Plaza Salon Bellevue — brand.css
   Design Tokens Contract (stable, minimal, reusable)
   ========================================================= */

/* -----------------------------
   Color Tokens (single source)
   ----------------------------- */
:root {
  /* Core palette */
  --brand-green: #2f5d50; /* calm, natural anchor */
  --brand-green-soft: #6f8f86; /* muted secondary */
  --brand-silver: #c9ced3; /* clean, modern neutral */
  --brand-black: #111111; /* soft black, not harsh */
  --brand-white: #ffffff;

  /* Backgrounds */
  --bg-light: var(--brand-white);
  --bg-dark: #0f1a17; /* deep green-black */

  /* Text */
  --text-primary: var(--brand-black);
  --text-secondary: #4a4f4d;
  --text-inverse: var(--brand-white);

  /* Accents & dividers */
  --accent-subtle: var(--brand-silver);
  --accent-quiet: rgba(0, 0, 0, 0.08);
}

/* -----------------------------
   Typography Defaults
   ----------------------------- */
:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  --font-base-size: 16px;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;

  --heading-letter-spacing: 0.04em;
}

html {
  font-size: var(--font-base-size);
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-light);
  font-weight: var(--font-weight-regular);
}

/* Apply subtle brand spacing to headings */
h1,
h2,
h3,
h4,
h5,
h6 {
  letter-spacing: var(--heading-letter-spacing);
}

/* -----------------------------
   Utility Classes (small set)
   ----------------------------- */

/* Brand text color (accents, headings) */
.text-brand {
  color: var(--brand-green);
}

/* Muted secondary text */
.text-muted-brand {
  color: var(--text-secondary);
}

/* Primary brand button */
.btn-brand {
  color: var(--text-inverse);
  background-color: var(--brand-green);
  border: 1px solid var(--brand-green);
  font-weight: var(--font-weight-medium);
}

/* Hover / focus / active (minimal tactile feedback) */
.btn-brand:hover {
  background-color: var(--brand-green-soft);
  border-color: var(--brand-green-soft);
}

.btn-brand:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(47, 93, 80, 0.35);
}

.btn-brand:active {
  transform: translateY(1px);
  box-shadow: none;
}

/* Outline brand button (light sections) */
.btn-brand-outline {
  color: var(--brand-green);
  background-color: transparent;
  border: 1px solid var(--brand-green);
  font-weight: var(--font-weight-medium);
}

.btn-brand-outline:hover {
  background-color: rgba(47, 93, 80, 0.08);
}

.btn-brand-outline:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(47, 93, 80, 0.35);
}

.btn-brand-outline:active {
  transform: translateY(1px);
  box-shadow: none;
}

/* Inverse outline button (for dark sections) */
.btn-brand-inverse {
  color: var(--text-inverse);
  background-color: transparent;
  border: 1px solid var(--brand-silver);
  font-weight: var(--font-weight-medium);
}

.btn-brand-inverse:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.btn-brand-inverse:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(201, 206, 211, 0.45);
}

.btn-brand-inverse:active {
  transform: translateY(1px);
  box-shadow: none;
}

/* Dark, grounded section background */
.bg-brand-dark {
  background-color: var(--bg-dark);
  color: var(--text-inverse);
}

/* Light neutral section background */
.bg-brand-light {
  background-color: var(--bg-light);
}

/* Subtle divider line */
.divider-subtle {
  height: 1px;
  background-color: var(--accent-subtle);
  border: none;
}

/* Quiet surface (cards, panels) */
.surface-quiet {
  background-color: var(--brand-white);
  border: 1px solid var(--accent-quiet);
}