/* ============================================================
   ChatGPT Made Simple — Brand Design System
   Version 2.0 | March 28, 2026
   Canonical source of truth for all brand tokens.
   All HTML pages should link to this file.
   ============================================================ */

:root {
  /* ---- Primary Colors ---- */
  --brand-deep-teal:    #14564C;
  --brand-warm-white:   #FDF8F1;
  --brand-ink:          #1F1E1B;
  --brand-charcoal:     #2D2D2D;

  /* ---- Secondary Colors ---- */
  --brand-golden:       #C77B14;
  --brand-golden-bright:#E8A317;
  --brand-soft-sage:    #E4EEE9;
  --brand-light-teal:   #C5E4DC;

  /* ---- Supporting Colors ---- */
  --brand-warm-gray:    #6B6560;
  --brand-light-gray:   #EDE8E2;
  --brand-coral:        #D64A3E;
  --brand-success:      #2E8A4E;
  --brand-paper:        #FFFCF7;

  /* ---- Shadows ---- */
  --shadow-teal:        rgba(20, 86, 76, 0.12);
  --shadow-deep:        rgba(31, 30, 27, 0.08);

  /* ---- Semantic Aliases ---- */
  --color-bg-page:          var(--brand-warm-white);
  --color-bg-section:       var(--brand-soft-sage);
  --color-bg-input:         var(--brand-light-gray);
  --color-bg-card:          #FFFFFF;

  --color-text-primary:     var(--brand-ink);
  --color-text-secondary:   var(--brand-warm-gray);
  --color-text-heading:     var(--brand-deep-teal);
  --color-text-accent:      var(--brand-golden);
  --color-text-on-dark:     var(--brand-paper);
  --color-text-on-teal:     #FFFFFF;
  --color-text-error:       var(--brand-coral);
  --color-text-success:     var(--brand-success);

  --color-border:           #E0DDD8;
  --color-border-focus:     var(--brand-golden-bright);

  --color-btn-primary-bg:   var(--brand-deep-teal);
  --color-btn-primary-text: #FFFFFF;
  --color-btn-primary-hover:#0E3D36;
  --color-btn-secondary-bg: rgba(255, 252, 247, 0.9);
  --color-btn-secondary-border: rgba(20, 86, 76, 0.35);
  --color-btn-secondary-text: var(--brand-deep-teal);

  /* ---- Typography ---- */
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body:    'Atkinson Hyperlegible', Verdana, sans-serif;

  --text-size-xs:   0.875rem;   /* 14px */
  --text-size-sm:   1rem;       /* 16px */
  --text-size-base: 1.1875rem;  /* 19px */
  --text-size-lg:   1.25rem;    /* 20px */
  --text-size-xl:   1.5rem;     /* 24px */
  --text-size-2xl:  1.75rem;    /* 28px */
  --text-size-3xl:  2.25rem;    /* 36px */
  --text-size-4xl:  2.75rem;    /* 44px */

  --line-height-tight:   1.18;
  --line-height-normal:  1.5;
  --line-height-relaxed: 1.68;
  --line-height-loose:   1.8;

  --max-line-width: 72ch;
  --max-content-width: 920px;

  /* ---- Spacing (8px grid) ---- */
  --space-1:  0.25rem;  /* 4px  */
  --space-2:  0.5rem;   /* 8px  */
  --space-3:  0.75rem;  /* 12px */
  --space-4:  1rem;     /* 16px */
  --space-5:  1.5rem;   /* 24px */
  --space-6:  2rem;     /* 32px */
  --space-7:  2.5rem;   /* 40px */
  --space-8:  3rem;     /* 48px */
  --space-9:  4rem;     /* 64px */
  --space-10: 5rem;     /* 80px */
  --space-11: 6rem;     /* 96px */

  /* ---- Border Radius ---- */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  14px;
  --radius-xl:  20px;
  --radius-full:9999px;

  /* ---- Shadows ---- */
  --shadow-sm:   0 1px 4px rgba(0,0,0,0.04);
  --shadow-md:   0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg:   0 4px 16px rgba(0,0,0,0.1);
  --shadow-focus: 0 0 0 3px var(--brand-golden-bright);

  /* ---- Transitions ---- */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  /* ---- Touch Targets ---- */
  --touch-target-min: 48px;
}

/* ---- Base Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---- Base Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  color: var(--brand-deep-teal);
  line-height: var(--line-height-tight);
  font-weight: 700;
}

h1 { font-size: var(--text-size-4xl); margin-bottom: 1rem; letter-spacing: -0.03em; }
h2 { font-size: var(--text-size-3xl); margin-bottom: 1rem; letter-spacing: -0.02em; }
h3 { font-size: var(--text-size-xl);  font-weight: 600; margin-bottom: 0.65rem; }
h4 { font-size: var(--text-size-lg);  font-weight: 600; margin-bottom: 0.65rem; }

p {
  max-width: var(--max-line-width);
  margin-bottom: 1rem;
}

a {
  color: var(--brand-deep-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--color-btn-primary-hover);
}

img {
  max-width: 100%;
  height: auto;
}

/* ---- Brand Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  padding: 0.9rem 2rem;
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.15;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), background 0.2s, border-color 0.2s;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px var(--brand-paper), 0 0 0 6px var(--brand-golden-bright);
  outline: none;
}

.btn-primary {
  background: linear-gradient(165deg, var(--brand-deep-teal), #0E3D36);
  color: white;
  border-color: transparent;
  box-shadow: 0 6px 22px var(--shadow-teal);
}

.btn-primary:hover {
  background: linear-gradient(165deg, #1A6B5F, #0C3530);
  color: white;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--shadow-teal);
}

.btn-golden {
  background: linear-gradient(165deg, var(--brand-golden-bright), var(--brand-golden));
  color: #1A1204;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(199, 123, 20, 0.28);
}

.btn-golden:hover {
  filter: brightness(1.05);
  color: #1A1204;
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--color-btn-secondary-bg);
  color: var(--color-btn-secondary-text);
  border-color: var(--color-btn-secondary-border);
  box-shadow: 0 2px 10px var(--shadow-deep);
}

.btn-secondary:hover {
  background: white;
  border-color: var(--brand-deep-teal);
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-large {
  font-size: 1.2rem;
  padding: 1.05rem 2.35rem;
}

/* ---- Brand Card ---- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

/* ---- Prompt Box (for ChatGPT prompts) ---- */
.prompt-box {
  background: var(--brand-soft-sage);
  border-left: 4px solid var(--brand-deep-teal);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-size-lg);
  color: var(--brand-ink);
  line-height: var(--line-height-relaxed);
}

.prompt-box::before {
  content: "Prompt to copy:";
  display: block;
  font-weight: 700;
  font-size: var(--text-size-sm);
  color: var(--brand-deep-teal);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---- Step Indicator ---- */
.step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-deep-teal);
  color: white;
  font-family: var(--font-display);
  font-size: var(--text-size-xl);
  font-weight: 700;
  border-radius: var(--radius-full);
}

.step-content {
  flex: 1;
  padding-top: var(--space-2);
}

.step-content h4 {
  margin-bottom: var(--space-1);
}

/* ---- Alert Boxes ---- */
.alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  font-size: var(--text-size-base);
}

.alert-success {
  background: #E8F5EC;
  border-color: var(--brand-success);
  color: #1B5E34;
}

.alert-warning {
  background: #FEF3E2;
  border-color: var(--brand-golden);
  color: #7A5B1A;
}

.alert-error {
  background: #FDE8E5;
  border-color: var(--brand-coral);
  color: #8B2E1F;
}

.alert-info {
  background: var(--brand-soft-sage);
  border-color: var(--brand-deep-teal);
  color: var(--brand-ink);
}

/* ---- Skip Link ---- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 20000;
  padding: 0.75rem 1.25rem;
  background: var(--brand-deep-teal);
  color: white;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 10px 0;
  font-family: var(--font-body);
}

.skip-link:focus {
  left: 0;
  outline: 3px solid var(--brand-golden-bright);
}

/* ---- Print Styles ---- */
@media print {
  body {
    background: white;
    color: black;
    font-size: 12pt;
    line-height: 1.5;
  }

  .btn {
    border: 2px solid black;
    color: black;
  }

  .no-print {
    display: none !important;
  }
}