/* AutoECP — Brand Design System */
/* assets/brand.md tokens expressed as CSS custom properties */
/* All values derive from the brand spec — nothing invented */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Source+Sans+3:wght@300;400;600;700&family=IBM+Plex+Mono:wght@400;600&display=swap');

/* === Token declarations === */
:root {
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', 'Cascadia Code', monospace;
  --radius: 2px;
  --space: 8px;

  /* Light theme (default) */
  --color-primary: #1f4a3a;
  --color-primary-hover: #163829;
  --color-primary-text: #ffffff;
  --color-accent: #b84a3a;
  --color-accent-hover: #a03a2a;
  --color-bg: #f7f5f0;
  --color-surface: #ffffff;
  --color-text: #2a2826;
  --color-text-muted: #7a7570;
  --color-border: #e0dcd4;
  --color-focus-ring: rgba(31, 74, 58, 0.25);
  --logo-filter: none;
}

/* Dark theme */
[data-theme="dark"] {
  --color-primary: #4a9a7a;
  --color-primary-hover: #5aac8a;
  --color-primary-text: #1a1816;
  --color-accent: #d46a5a;
  --color-accent-hover: #e47a6a;
  --color-bg: #1a1816;
  --color-surface: #2a2826;
  --color-text: #e8e4de;
  --color-text-muted: #9a9590;
  --color-border: #3a3836;
  --color-focus-ring: rgba(74, 154, 122, 0.3);
  --logo-filter: invert(0.85) hue-rotate(155deg) saturate(0.5);
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: auto; /* brand motion rule: native scroll only */
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
}

h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 1.75rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; }

a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color 150ms ease-out;
}
a:hover { color: var(--color-primary-hover); }

/* === Mono utility class === */
.mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* === Section eyebrow / section number === */
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  display: block;
}

/* === Nav === */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--space) * 2) calc(var(--space) * 4);
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.site-nav .nav-logo {
  display: flex;
  align-items: center;
  gap: calc(var(--space) * 1);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}

.site-nav .nav-logo:hover { color: var(--color-primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: calc(var(--space) * 3);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 150ms ease-out;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

/* === Theme toggle === */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 0.5) calc(var(--space) * 1);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  transition: background 150ms ease-out, color 150ms ease-out;
  line-height: 1;
}

.theme-toggle:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

/* === Buttons === */
.btn-primary, .btn-secondary, .btn-outline, .btn-ghost {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 150ms ease-out, color 150ms ease-out, border-color 150ms ease-out;
  line-height: 1.4;
  display: inline-flex;
  align-items: center;
  gap: calc(var(--space) * 0.5);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-text);
  border: 1px solid var(--color-primary);
  padding: calc(var(--space) * 1) calc(var(--space) * 3);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: calc(var(--space) * 1) calc(var(--space) * 2);
}

.btn-secondary:hover {
  border-color: var(--color-text-muted);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  padding: calc(var(--space) * 1) calc(var(--space) * 2);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-surface);
}

.btn-ghost {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  padding: calc(var(--space) * 0.5);
  font-size: 0.85rem;
  font-weight: 400;
  text-decoration: underline;
}

.btn-ghost:hover {
  color: var(--color-text);
}

.btn-danger {
  background: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
  padding: calc(var(--space) * 0.5) calc(var(--space) * 1.5);
  font-family: var(--font-body);
  font-size: 0.9rem;
  border-radius: var(--radius);
  cursor: pointer;
}

.btn-danger:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

/* === Layout utilities === */
.wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 calc(var(--space) * 4);
}

.wrapper-narrow {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 calc(var(--space) * 4);
}

.section {
  padding: calc(var(--space) * 8) 0;
}

/* === Hero === */
.hero {
  background: var(--color-bg);
  padding: calc(var(--space) * 12) 0 calc(var(--space) * 8);
  position: relative;
}

.hero .wrapper {
  max-width: 680px;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: calc(var(--space) * 2);
  line-height: 1.15;
}

.hero h1 .accent-word {
  color: var(--color-primary);
}

.hero .subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 4);
  line-height: 1.5;
  max-width: 520px;
}

/* === Hero two-column layout === */
.hero-inner {
  display: flex;
  gap: calc(var(--space) * 6);
  align-items: flex-start;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 calc(var(--space) * 4);
}

.hero-text {
  flex: 0 0 42%;
  max-width: 42%;
}

.hero-visual {
  flex: 1 1 50%;
  max-width: 50%;
  min-width: 0;
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* === Figure / Product diagram === */
.product-figure {
  margin: calc(var(--space) * 6) 0 calc(var(--space) * 4);
  width: 100%;
  max-width: 680px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  padding: calc(var(--space) * 3);
}

.product-figure svg {
  display: block;
  width: 100%;
  height: auto;
}

/* === Feature/proof items === */
.feature-item {
  margin-bottom: calc(var(--space) * 6);
}

.feature-item:last-child {
  margin-bottom: 0;
}

.feature-item h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: calc(var(--space) * 1);
}

.feature-item p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  max-width: 520px;
}

/* === How it works steps === */
.steps-row {
  display: flex;
  gap: calc(var(--space) * 6);
  max-width: 680px;
}

.step {
  flex: 1;
}

.step .step-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary);
  display: block;
  margin-bottom: calc(var(--space) * 1);
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: calc(var(--space) * 1);
}

.step p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* === Limits / Cannot-do list === */
.limit-item {
  padding: calc(var(--space) * 2) 0;
  border-bottom: 1px solid var(--color-border);
}

.limit-item:last-child {
  border-bottom: none;
}

.limit-item .limit-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: calc(var(--space) * 0.5);
}

.limit-item p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* === Objection / answer === */
.objection {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 3);
  background: var(--color-surface);
  margin-bottom: calc(var(--space) * 3);
}

.objection:last-child {
  margin-bottom: 0;
}

.objection .objection-q {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: calc(var(--space) * 1);
  color: var(--color-text);
}

.objection .objection-a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* === Footer === */
.site-footer {
  padding: calc(var(--space) * 6) calc(var(--space) * 4);
  border-top: 1px solid var(--color-border);
  max-width: 1200px;
  margin: 0 auto;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: calc(var(--space) * 2);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: calc(var(--space) * 3);
  font-size: 0.85rem;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

/* === Legal pages (privacy, terms) === */
.legal-section {
  margin-bottom: calc(var(--space) * 5);
}

.legal-section h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: calc(var(--space) * 1);
  color: var(--color-text);
}

.legal-section p {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.legal-section ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-section ul li {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0.35rem;
}

/* === Screens (app) === */
.screen {
  max-width: 680px;
  margin: 0 auto;
  padding: calc(var(--space) * 2) calc(var(--space) * 4);
}

.auth-card {
  text-align: center;
  margin-top: calc(var(--space) * 8);
  padding: calc(var(--space) * 6) calc(var(--space) * 4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.auth-card h1 {
  font-size: 1.8rem;
  margin-bottom: calc(var(--space) * 1);
}

.tagline {
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 4);
  font-size: 1rem;
}

/* === Editor (app) === */
.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: calc(var(--space) * 1);
  padding: calc(var(--space) * 2) 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: calc(var(--space) * 2);
}

.editor-header h1 {
  font-size: 1.4rem;
  margin: 0;
}

.header-right {
  display: flex;
  gap: calc(var(--space) * 1);
  align-items: center;
}

.header-left {
  display: flex;
  align-items: center;
  gap: calc(var(--space) * 1.5);
}

.save-indicator {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary);
  padding: calc(var(--space) * 0.5) 0;
  min-height: 1.5rem;
  transition: opacity 200ms ease-out;
  opacity: 0;
}

.save-indicator.visible { opacity: 1; }

.editor-body {
  padding-bottom: calc(var(--space) * 6);
}

.plan-title-section {
  margin-bottom: calc(var(--space) * 3);
}

.plan-title-section label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: calc(var(--space) * 0.5);
  color: var(--color-text-muted);
}

.plan-title-section input {
  width: 100%;
  padding: calc(var(--space) * 1) calc(var(--space) * 1.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 1.2rem;
  background: var(--color-surface);
  color: var(--color-text);
}

.plan-title-section input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

/* === Section card (editor) === */
.section-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: calc(var(--space) * 2);
  padding: calc(var(--space) * 2);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: calc(var(--space) * 1.5);
}

.section-name-input {
  flex: 1;
  padding: calc(var(--space) * 0.75) calc(var(--space) * 1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  margin-right: calc(var(--space) * 1);
  background: var(--color-bg);
  color: var(--color-text);
}

.section-name-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.section-actions {
  display: flex;
  gap: calc(var(--space) * 0.5);
}

/* === Contact row (editor) === */
.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space) * 1);
  padding: calc(var(--space) * 1) 0;
  border-top: 1px solid var(--color-border);
  align-items: center;
}

.contact-row:first-of-type { border-top: none; }

.contact-row input {
  padding: calc(var(--space) * 0.75) calc(var(--space) * 1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  background: var(--color-bg);
  color: var(--color-text);
}

.contact-row input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.contact-name { flex: 2; min-width: 120px; }
.contact-role { flex: 1; min-width: 80px; }
.contact-phone { flex: 1; min-width: 100px; }
.contact-notes { flex: 2; min-width: 120px; }

.add-contact-btn {
  margin-top: calc(var(--space) * 1);
  padding: calc(var(--space) * 0.5) calc(var(--space) * 1.5);
  background: transparent;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.85rem;
  transition: border-color 150ms ease-out, color 150ms ease-out;
}

.add-contact-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

#add-section-btn {
  margin-top: calc(var(--space) * 1);
  width: 100%;
}

/* === Print-only preview === */
.print-only { display: none; }

/* === Print styles === */
@media print {
  body { background: #fff; }
  .site-nav { display: none; }
  .editor-header { display: none; }
  .theme-toggle { display: none; }
  #save-indicator { display: none; }
  #add-section-btn { display: none; }
  .section-actions .btn-danger, .section-actions .btn-ghost { display: none; }
  .add-contact-btn { display: none; }
  input, textarea {
    border: none !important;
    padding: 0;
    background: transparent;
    color: #000;
    font-size: 0.9rem;
  }
  .section-card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
  .contact-row {
    border-top: 1px solid #ddd;
  }
  .plan-title-section input {
    font-size: 1.3rem;
    font-weight: 700;
    border: none;
    font-family: 'Playfair Display', Georgia, serif;
  }
  @page { margin: 0.75in; }
}

/* === Responsive === */
@media (max-width: 768px) {
  .site-nav {
    padding: calc(var(--space) * 2);
    flex-wrap: wrap;
    gap: calc(var(--space) * 1);
  }
  .nav-links {
    gap: calc(var(--space) * 2);
  }
  .hero h1 { font-size: 1.8rem; }
  .steps-row { flex-direction: column; gap: calc(var(--space) * 4); }
  .wrapper, .wrapper-narrow { padding: 0 calc(var(--space) * 2); }
  .section { padding: calc(var(--space) * 4) 0; }
  .hero { padding: calc(var(--space) * 6) 0 calc(var(--space) * 4); }
  .hero-inner { flex-direction: column; gap: calc(var(--space) * 4); }
  .hero-text, .hero-visual { flex: 0 0 100%; max-width: 100%; }
  .editor-header { flex-direction: column; align-items: stretch; }
  .header-right { justify-content: center; }
  .contact-row { flex-direction: column; }
  .contact-row input { width: 100%; }
  .site-footer { padding: calc(var(--space) * 4) calc(var(--space) * 2); }
  .footer-links { flex-direction: column; gap: calc(var(--space) * 1); }
}

@media (max-width: 480px) {
  .site-nav .nav-links { flex-wrap: wrap; gap: calc(var(--space) * 1); }
  .hero h1 { font-size: 1.5rem; }
}