/* ============================================================
   GROUNDWORK — Landing Page
   Palette: Warm earth tones (slate-blue accent, warm cream base)
   Fonts: Plus Jakarta Sans (body) + Instrument Serif (display)
   ============================================================ */

/* ── DESIGN TOKENS ── */
:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #F6F4EF;
  --color-surface: #F9F8F4;
  --color-surface-2: #FAFAF7;
  --color-surface-offset: #EEEAE2;
  --color-border: #D6D1C7;
  --color-divider: #E0DBD3;

  /* Text */
  --color-text: #2A2620;
  --color-text-muted: #7A7670;
  --color-text-faint: #B8B5B0;
  --color-text-inverse: #FAF9F6;

  /* Primary — slate blue */
  --color-primary: #2F5380;
  --color-primary-hover: #1F3D61;
  --color-primary-active: #122744;
  --color-primary-highlight: #D0DCE9;

  /* Accent warm — earthy amber */
  --color-accent: #B56A1E;
  --color-accent-highlight: #F0E4D0;

  /* Semantic */
  --color-success: #3A7A22;
  --color-error: #A12C2C;

  /* 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;

  /* 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-hero: clamp(2.5rem, 1rem + 5vw, 5.5rem);

  /* Font families */
  --font-body: 'Plus Jakarta Sans', 'Helvetica Neue', sans-serif;
  --font-display: 'Instrument Serif', Georgia, serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

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

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(42, 38, 32, 0.08);
  --shadow-md: 0 4px 14px rgba(42, 38, 32, 0.10);
  --shadow-lg: 0 12px 36px rgba(42, 38, 32, 0.12);

  /* Content widths */
  --content-narrow: 680px;
  --content-default: 960px;
  --content-wide: 1180px;
}

[data-theme='dark'] {
  --color-bg: #18160F;
  --color-surface: #1D1B14;
  --color-surface-2: #221F18;
  --color-surface-offset: #1A1812;
  --color-border: #393530;
  --color-divider: #2C2921;
  --color-text: #CCC9C2;
  --color-text-muted: #7A7670;
  --color-text-faint: #5A5751;
  --color-text-inverse: #2A2620;
  --color-primary: #6B9CC8;
  --color-primary-hover: #4A7DAF;
  --color-primary-highlight: #1F2E3D;
  --color-accent: #D98A3C;
  --color-accent-highlight: #3D2C18;
  --color-success: #6DAA45;
  --color-error: #DD6666;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #18160F;
    --color-surface: #1D1B14;
    --color-surface-2: #221F18;
    --color-surface-offset: #1A1812;
    --color-border: #393530;
    --color-divider: #2C2921;
    --color-text: #CCC9C2;
    --color-text-muted: #7A7670;
    --color-text-faint: #5A5751;
    --color-text-inverse: #2A2620;
    --color-primary: #6B9CC8;
    --color-primary-hover: #4A7DAF;
    --color-primary-highlight: #1F2E3D;
    --color-accent: #D98A3C;
    --color-accent-highlight: #3D2C18;
    --color-success: #6DAA45;
    --color-error: #DD6666;
  }
}

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

html {
  -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);
  transition: background-color 0.2s, color 0.2s;
}

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

h1, h2, h3, h4 {
  text-wrap: balance;
  line-height: 1.15;
}

p, li { text-wrap: pretty; max-width: 68ch; }

::selection {
  background: color-mix(in srgb, var(--color-primary) 20%, transparent);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-hover); }
.inline-link { text-decoration: underline; text-underline-offset: 3px; font-weight: 500; }

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

/* ── LAYOUT ── */
.container {
  width: min(var(--content-wide), 100% - var(--space-8));
  margin-inline: auto;
}

.container-narrow {
  width: min(var(--content-narrow), 100% - var(--space-8));
  margin-inline: auto;
}

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn-full { width: 100%; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2);
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

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

.btn-ghost-dark {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition);
}

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

/* ── HEADER ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  transition: background var(--transition), border-color var(--transition);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  max-width: var(--content-wide);
  margin-inline: auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 400;
  transition: opacity var(--transition);
}

.logo:hover { opacity: 0.8; color: var(--color-text); }
.logo-sm { font-size: 1rem; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ── HERO ── */
.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
  border-bottom: 1px solid var(--color-divider);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
  max-width: var(--content-wide);
  margin-inline: auto;
}

@media (min-width: 800px) {
  .hero-inner {
    grid-template-columns: 1fr 360px;
    gap: var(--space-16);
  }
}

.hero-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--color-accent-highlight);
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 400;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

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

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-8);
  max-width: 54ch;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.hero-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* Hero visual cards */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.visual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.visual-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.visual-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-icon { font-size: 1.5rem; }

/* ── SECTION SHARED STYLES ── */
.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.section-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

/* ── PROBLEM SECTION ── */
.problem {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  border-bottom: 1px solid var(--color-divider);
}

.problem .section-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}

/* ── HOW IT WORKS ── */
.how-it-works {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-divider);
}

.how-it-works .section-title {
  margin-bottom: var(--space-10);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

.step-card {
  padding: var(--space-6);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition), transform var(--transition);
}

.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-primary);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: var(--space-4);
}

.step-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.step-body {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ── WHO IT'S FOR ── */
.who-for {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  border-bottom: 1px solid var(--color-divider);
}

.checklist {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--color-text);
}

.check-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  margin-top: 2px;
}

.not-for {
  padding: var(--space-5);
  background: var(--color-surface-offset);
  border-left: 3px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.not-for strong { color: var(--color-text); }

/* ── BUSINESS TYPES ── */
.business-types {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-divider);
}

.business-types .section-title {
  margin-bottom: var(--space-10);
}

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-5);
}

.type-card {
  padding: var(--space-6);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition), transform var(--transition);
}

.type-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.type-icon {
  font-size: 2rem;
  margin-bottom: var(--space-3);
}

.type-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

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

/* ── SIGNUP SECTION ── */
.signup {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  border-bottom: 1px solid var(--color-divider);
}

.signup-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  box-shadow: var(--shadow-lg);
}

.signup-card .section-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

/* ── FORM ── */
.signup-form {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.form-row-2 > .form-group { flex: 1; min-width: 180px; }

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

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

.label-optional {
  font-weight: 400;
  color: var(--color-text-faint);
}

input, select, textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  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), box-shadow var(--transition);
  appearance: none;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 15%, transparent);
}

input::placeholder, textarea::placeholder { color: var(--color-text-faint); }

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237A7670' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

textarea { resize: vertical; min-height: 90px; }

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

/* ── TALLY EMBED ── */
.tally-embed-wrap {
  margin-top: var(--space-8);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.tally-embed-wrap iframe {
  display: block;
  width: 100%;
  border: none;
}

/* ── FORM SUCCESS STATE ── */
.form-success {
  text-align: center;
  padding: var(--space-12) var(--space-8);
}

.success-icon {
  width: 56px;
  height: 56px;
  background: var(--color-success);
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto var(--space-5);
}

.form-success h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  margin-bottom: var(--space-3);
}

.form-success p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  margin-inline: auto;
}

/* ── ABOUT ── */
.about {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  border-bottom: 1px solid var(--color-divider);
}

.about-cta {
  margin-top: var(--space-8);
}

/* ── FOOTER ── */
.site-footer {
  padding-block: var(--space-10);
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 100%;
}

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .nav-inner { padding: var(--space-3) var(--space-4); }
  .hero-cta-group { flex-direction: column; align-items: flex-start; }
  .btn-primary.btn-lg { width: 100%; justify-content: center; }
  .visual-grid { grid-template-columns: 1fr; }
  .form-row-2 { flex-direction: column; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}