/* =========================================
   MAIN STREET STACK — style.css
   Palette: Warm parchment + terracotta accent
   Fonts: Instrument Serif (display) + General Sans (body)
   ========================================= */

/* ---- TOKENS ---- */
:root,
[data-theme='light'] {
  /* Surfaces — warm parchment */
  --color-bg:              #f2ede6;
  --color-surface:         #f6f2eb;
  --color-surface-2:       #faf8f4;
  --color-surface-offset:  #ece7de;
  --color-divider:         #ddd7cc;
  --color-border:          #d4cdc3;

  /* Text */
  --color-text:            #1e1b17;
  --color-text-muted:      #6b6460;
  --color-text-faint:      #b0a89f;
  --color-text-inverse:    #faf8f4;

  /* Accent — terracotta */
  --color-primary:         #b84c2a;
  --color-primary-hover:   #983d20;
  --color-primary-active:  #7a2f18;
  --color-primary-highlight: #f0ddd6;

  /* Radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(30,27,23,0.06);
  --shadow-md: 0 4px 12px rgba(30,27,23,0.09);
  --shadow-lg: 0 12px 32px rgba(30,27,23,0.13);

  /* Content widths */
  --content-narrow:  640px;
  --content-default: 960px;
  --content-wide:    1200px;

  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     1rem    + 6vw,    7rem);

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem;    --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem;    --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;   --space-20: 5rem;   --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body:    'General Sans', 'Helvetica Neue', sans-serif;
}

[data-theme='dark'] {
  --color-bg:             #1a1712;
  --color-surface:        #201d19;
  --color-surface-2:      #26231e;
  --color-surface-offset: #1d1a16;
  --color-divider:        #2e2a25;
  --color-border:         #3a3630;
  --color-text:           #d4cfc8;
  --color-text-muted:     #7a736c;
  --color-text-faint:     #534d47;
  --color-text-inverse:   #201d19;
  --color-primary:        #e07050;
  --color-primary-hover:  #c85c3c;
  --color-primary-active: #a84830;
  --color-primary-highlight: #3d2a22;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #1a1712;
    --color-surface:        #201d19;
    --color-surface-2:      #26231e;
    --color-surface-offset: #1d1a16;
    --color-divider:        #2e2a25;
    --color-border:         #3a3630;
    --color-text:           #d4cfc8;
    --color-text-muted:     #7a736c;
    --color-text-faint:     #534d47;
    --color-text-inverse:   #201d19;
    --color-primary:        #e07050;
    --color-primary-hover:  #c85c3c;
    --color-primary-active: #a84830;
    --color-primary-highlight: #3d2a22;
  }
}

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'], ol[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1,h2,h3,h4,h5,h6 { text-wrap: balance; line-height: 1.12; }
p, li, figcaption { text-wrap: pretty; max-width: 68ch; }

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection { background: var(--color-primary-highlight); color: var(--color-text); }

a, button, [role='button'] {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    opacity var(--transition-interactive);
}

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

button { cursor: pointer; background: none; border: none; }

.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;
}

/* ---- LAYOUT ---- */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 5vw, var(--space-12));
}

.container--wide { max-width: var(--content-wide); }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: none;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-primary:active { background: var(--color-primary-active); }

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}
.btn-full { width: 100%; justify-content: center; }

/* ---- NAV ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.site-header.scrolled {
  border-bottom-color: var(--color-divider);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  height: 36px;
  width: 36px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-links a:not(.btn) {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}
.nav-links a:not(.btn):hover { color: var(--color-text); }

/* ---- EYEBROW ---- */
.eyebrow, .section-eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

/* ---- HERO ---- */
.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
  background: var(--color-bg);
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  max-width: 800px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  line-height: 1.1;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.hero-headline .accent-italic {
  font-style: italic;
  color: var(--color-primary);
}

.map-pack-explainer {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-primary);
  padding-left: var(--space-4);
  max-width: 52ch;
  line-height: 1.6;
  margin-top: calc(-1 * var(--space-2));
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 58ch;
  line-height: 1.65;
}

/* ---- PAIN STRIP ---- */
.pain-strip {
  background: var(--color-surface-offset);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  padding-block: clamp(var(--space-10), 5vw, var(--space-16));
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.pain-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  font-weight: 400;
  color: var(--color-primary);
  line-height: 1.1;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: 26ch;
}

/* ---- HOW IT WORKS ---- */
.how-it-works {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--color-bg);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  max-width: 24ch;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
  line-height: 1.2;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
}

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
  align-items: start;
}
.step:last-child { border-bottom: 1px solid var(--color-divider); }

.step-number {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text-faint);
  font-weight: 400;
  padding-top: 0.1em;
  line-height: 1;
}

.step-title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.step-body p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 54ch;
}

/* ---- WHAT WE AUDIT ---- */
.what-we-audit {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
}

.audit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: 0;
}

.audit-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.audit-icon {
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.audit-item h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

.audit-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---- AUDIT FORM ---- */
.audit-form-section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--color-bg);
  border-top: 1px solid var(--color-divider);
}

.form-container {
  max-width: 600px;
}

.form-sub {
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  margin-top: calc(-1 * var(--space-2));
}

.audit-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.label-hint {
  font-weight: 400;
  color: var(--color-text-muted);
}

.form-group input {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
  width: 100%;
}
.form-group input::placeholder { color: var(--color-text-faint); }
.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}
.form-group input:focus-visible {
  outline: none;
}

.field-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.field-hint a { color: var(--color-primary); text-decoration: underline; }

.form-disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: calc(-1 * var(--space-2));
}

/* Form Success */
.form-success {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-top: var(--space-6);
}
.form-success[hidden] { display: none; }
.success-icon { color: var(--color-primary); }
.form-success h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
}
.form-success p { color: var(--color-text-muted); }

/* ---- FOOTER CTA STRIP ---- */
.footer-cta {
  background: var(--color-surface-offset);
  border-top: 1px solid var(--color-divider);
  padding-block: clamp(var(--space-12), 6vw, var(--space-24));
}

.footer-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-6);
}

.footer-cta-headline {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.15;
  max-width: 22ch;
}
.footer-cta-headline em {
  font-style: italic;
  color: var(--color-primary);
}

/* ---- FOOTER ---- */
.site-footer {
  background: var(--color-text);
  color: var(--color-text-inverse);
  padding-block: var(--space-8);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.logo-footer { color: var(--color-text-inverse); }
.logo-footer .logo-text { color: var(--color-text-inverse); }

.footer-copy {
  font-size: var(--text-xs);
  color: rgba(250,248,244,0.5);
}
.footer-copy a {
  color: rgba(250,248,244,0.6);
  text-decoration: none;
}
.footer-copy a:hover {
  color: rgba(250,248,244,0.9);
  text-decoration: underline;
}
.footer-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  text-align: right;
}
@media (max-width: 768px) {
  .footer-details { text-align: left; }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .nav-links a:not(.btn) { display: none; }

  .pain-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .audit-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .hero-headline { font-size: clamp(2rem, 8vw, 3rem); }

  .step {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .step-number { font-size: var(--text-base); }

  .audit-grid { grid-template-columns: 1fr; }
}