/* =============================================================
   carolmerlo.com — Main Stylesheet
   Design system: brand colors, typography, layout, components
   ============================================================= */

/* -------------------------------------------------------------
   1. CSS VARIABLES (Design Tokens)
   ------------------------------------------------------------- */
:root {
  /* Brand colors */
  --teal:        #2E8B8B;
  --teal-dark:   #1A5F5F;
  --gold:        #C9A84C;
  --teal-light:  #E8F5F5;
  --cream-dark:  #e8e0d5;

  /* Text */
  --text-dark:   #2C2C2C;
  --text-mid:    #555555;
  --text-soft:   #777777;
  --white:       #FFFFFF;
  --white-soft:  rgba(255, 255, 255, 0.85);

  /* Accessible overrides (WCAG AA — cannot use --gold or --teal on white) */
  --gold-accessible:  #8B6000;  /* 5.5:1 on white/teal-light */
  --teal-darker:      #0F3A3A;  /* hover on --teal-dark buttons */

  /* Typography */
  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body:    Arial, Inter, sans-serif;

  /* Spacing scale */
  --space-xs:    0.5rem;
  --space-sm:    1rem;
  --space-md:    2rem;
  --space-lg:    4rem;
  --space-xl:    8rem;

  /* Layout */
  --max-width:     1100px;
  --border-radius: 4px;
}

/* -------------------------------------------------------------
   2. RESET
   ------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

a {
  color: var(--teal);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

/* -------------------------------------------------------------
   3. TYPOGRAPHY
   ------------------------------------------------------------- */
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-dark);
  background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--teal);
  line-height: 1.25;
  margin-bottom: var(--space-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  color: var(--text-mid);
  margin-bottom: var(--space-sm);
}

p:last-child {
  margin-bottom: 0;
}

/* Tablet */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.625rem; }
  h3 { font-size: 1.25rem; }
}

/* Mobile */
@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.375rem; }
  h3 { font-size: 1.125rem; }
}

/* -------------------------------------------------------------
   4. LAYOUT — Container
   ------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }
}

/* Section spacing */
.section {
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
}

@media (max-width: 768px) {
  .section {
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
  }
}

/* Two-column grid */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  align-items: center;
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* -------------------------------------------------------------
   5. BUTTONS
   ------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  border: 2px solid transparent;
}

/* Primary — teal-dark fill, white text (7.2:1 — passes WCAG AA) */
.btn-primary {
  background-color: var(--teal-dark);
  color: var(--white);
  border-color: var(--teal-dark);
}

.btn-primary:hover {
  background-color: var(--teal-darker);
  border-color: var(--teal-darker);
  text-decoration: none;
  color: var(--white);
}

/* Secondary — gold outline */
.btn-secondary {
  background-color: transparent;
  color: var(--gold);
  border-color: var(--gold);
}

.btn-secondary:hover {
  background-color: var(--gold);
  color: var(--white);
  text-decoration: none;
}

/* Button group */
.btn-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  align-items: center;
}

/* -------------------------------------------------------------
   6. TESTIMONIAL CARD
   ------------------------------------------------------------- */
.testimonial-card {
  background-color: var(--teal-light);
  border-left: 4px solid var(--gold);
  padding: var(--space-md);
  border-radius: var(--border-radius);
}

.testimonial-card blockquote {
  font-family: var(--font-heading);
  font-style: italic;
  color: var(--text-dark);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: var(--space-xs);
}

.testimonial-card cite {
  display: block;
  font-style: normal;
  color: var(--text-mid);
  font-size: 0.9rem;
  font-weight: 600;
}

/* Testimonial grid */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 768px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

/* -------------------------------------------------------------
   7. UTILITY CLASSES
   ------------------------------------------------------------- */

/* Screen-reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Background variants */
.bg-teal-light { background-color: var(--teal-light); }
.bg-teal-dark  { background-color: var(--teal-dark); color: var(--white); }
.bg-teal-dark h1,
.bg-teal-dark h2,
.bg-teal-dark h3 { color: var(--white); }
.bg-teal-dark p  { color: rgba(255,255,255,0.9); }

/* Text alignment */
.text-center { text-align: center; }

/* Gold accent label — WCAG AA compliant alternative to --gold */
.label-gold {
  color: var(--gold-accessible);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}