/* =========================================================
   INNOVATIVE ACADEMY — Worksite Partner Sign-Up
   Brand: coral/salmon accent, warm off-white, charcoal-navy text
   ========================================================= */

/* ---------- Base reset (per design-tokens.md) ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: 5.5rem;
}

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: 1.15; }
p, li, figcaption { text-wrap: pretty; }

::selection { background: color-mix(in oklab, var(--color-primary) 25%, transparent); color: var(--color-text); }

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

@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; }
table { border-collapse: collapse; width: 100%; }

a, button, [role='button'], input, textarea, select {
  transition: color 180ms cubic-bezier(0.16,1,0.3,1),
              background 180ms cubic-bezier(0.16,1,0.3,1),
              border-color 180ms cubic-bezier(0.16,1,0.3,1),
              box-shadow 180ms cubic-bezier(0.16,1,0.3,1),
              transform 180ms cubic-bezier(0.16,1,0.3,1);
}

.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;
}

/* ---------- Design tokens ---------- */
:root {
  /* 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, 3.25rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);

  /* Spacing (4px system) */
  --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;

  /* Brand colors — coral/salmon accent, warm off-white, charcoal-navy text */
  --color-bg: #FFF9F6;
  --color-surface: #FFFFFF;
  --color-surface-2: #FDF6F3;
  --color-surface-offset: #FBEDE7;
  --color-divider: #F0DED6;
  --color-border: #E9D2C8;

  --color-text: #1F2A37;
  --color-text-muted: #5B6572;
  --color-text-faint: #93999F;
  --color-text-inverse: #FFFFFF;

  /* Primary accent — sampled from IA logo */
  --color-primary: #FA8072;
  --color-primary-hover: #E96C5D;
  --color-primary-active: #D6594B;
  --color-primary-highlight: #FDE3DD;

  --color-success: #3F8A5C;
  --color-success-highlight: #DFF0E5;
  --color-error: #C0392B;
  --color-error-highlight: #FBE4E1;

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(31, 42, 55, 0.06);
  --shadow-md: 0 8px 24px rgba(250, 128, 114, 0.12), 0 2px 6px rgba(31, 42, 55, 0.05);
  --shadow-lg: 0 20px 48px rgba(250, 128, 114, 0.16), 0 4px 12px rgba(31, 42, 55, 0.07);

  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1200px;

  --font-display: 'Quicksand', 'Nunito Sans', sans-serif;
  --font-body: 'Nunito Sans', 'Segoe UI', sans-serif;
}

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);
}

.wrap {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: 999;
}
.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  min-height: 44px;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(250, 128, 114, 0.35);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(250, 128, 114, 0.42);
}
.btn-primary:active { background: var(--color-primary-active); transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn-sm { padding: var(--space-2) var(--space-5); font-size: var(--text-xs); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
button.btn[hidden],
a.btn[hidden] { display: none !important; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-3);
}
.logo-badge {
  display: inline-flex;
  align-items: center;
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-4);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-divider);
}
.logo-img { height: 40px; width: auto; display: block; }
.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.header-nav a:not(.btn) {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}
.header-nav a:not(.btn):hover { color: var(--color-primary); }

/* ---------- Eyebrow / section titles ---------- */
.eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.eyebrow.center { text-align: center; }
.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.section-title.center { text-align: center; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  text-align: center;
  margin-inline: auto;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-3xl);
  color: var(--color-text);
  margin-bottom: var(--space-5);
}
.hero-title .highlight { color: var(--color-primary); }
.hero-subtitle {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero-copy {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 62ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}
.hero-cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.hero-blob {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 720px;
  max-height: 720px;
  background: radial-gradient(circle, var(--color-primary-highlight) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
}

/* ---------- Benefits ---------- */
.benefits { padding-block: clamp(var(--space-12), 8vw, var(--space-24)); }
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  max-width: var(--content-default);
  margin-inline: auto;
}
.benefit-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}
.benefit-icon { width: 56px; height: 56px; margin-bottom: var(--space-5); }
.benefit-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}
.benefit-card p { color: var(--color-text-muted); }

/* ---------- How it works ---------- */
.how-it-works {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  background: var(--color-surface-2);
  border-block: 1px solid var(--color-divider);
}
.steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  max-width: var(--content-default);
  margin-inline: auto;
  list-style: none;
  padding: 0;
}
.step-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6) var(--space-6);
  text-align: center;
  border: 1px solid var(--color-divider);
}
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}
.step-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}
.step-card p { color: var(--color-text-muted); font-size: var(--text-sm); }
.how-it-works-cta { display: flex; justify-content: center; margin-top: var(--space-12); }

/* ---------- Signup section ---------- */
.signup-section { padding-block: clamp(var(--space-16), 10vw, var(--space-32)); }
.signup-wrap { max-width: var(--content-default); }
.signup-intro {
  color: var(--color-text-muted);
  max-width: 56ch;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.form-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-divider);
  padding: clamp(var(--space-6), 4vw, var(--space-12));
  max-width: 760px;
  margin-inline: auto;
  position: relative;
}

/* Progress bar */
.progress-wrap { margin-bottom: var(--space-8); }
.progress-track {
  width: 100%;
  height: 8px;
  background: var(--color-surface-offset);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-2);
}
.progress-fill {
  height: 100%;
  width: 16.6667%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-hover));
  border-radius: var(--radius-full);
  transition: width 400ms cubic-bezier(0.16,1,0.3,1);
}
.progress-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Form steps */
.form-step { border: none; }
.step-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-2);
  padding: 0;
}
.step-subheading {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
}

.field { margin-bottom: var(--space-5); }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
.field label,
.field legend {
  display: block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.req { color: var(--color-primary); }
.optional { color: var(--color-text-faint); font-weight: 500; text-transform: none; }

.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="number"],
.field textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-size: var(--text-base);
  color: var(--color-text);
  min-height: 44px;
}
.field textarea { min-height: 96px; resize: vertical; }
.field input:focus,
.field textarea:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 4px var(--color-primary-highlight);
}
.field input.input-error,
.field textarea.input-error {
  border-color: var(--color-error);
}
.field input.input-error:focus,
.field textarea.input-error:focus {
  box-shadow: 0 0 0 4px var(--color-error-highlight);
}

.field-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-2);
  min-height: 1em;
  display: none;
}
.field-error.visible { display: block; }

/* Radio / checkbox groups */
.radio-group, .checkbox-group {
  border: none;
  padding: 0;
  margin: 0 0 var(--space-5) 0;
}
.radio-group legend, .checkbox-group legend {
  margin-bottom: var(--space-3);
}
.radio-option, .checkbox-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  cursor: pointer;
  font-weight: 500;
  font-size: var(--text-sm);
}
.radio-option:hover, .checkbox-option:hover { border-color: var(--color-primary); }
.radio-option input, .checkbox-option input {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}
.radio-option:has(input:checked),
.checkbox-option:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-highlight);
}

.days-group {
  display: block;
}
.days-group .checkbox-option {
  display: inline-flex;
  width: auto;
  margin-right: var(--space-2);
  padding: var(--space-2) var(--space-4);
}
.days-group-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.conditional-field {
  padding: var(--space-4);
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  border: 1px dashed var(--color-border);
}

/* Review summary */
.review-summary { display: flex; flex-direction: column; gap: var(--space-5); }
.review-group {
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  border: 1px solid var(--color-divider);
}
.review-group h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-3);
}
.review-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-2);
  border-bottom: 1px solid var(--color-divider);
  font-size: var(--text-sm);
}
.review-row:last-child { border-bottom: none; }
.review-row dt { color: var(--color-text-muted); flex-shrink: 0; }
.review-row dd { color: var(--color-text); text-align: right; font-weight: 600; }
.review-empty { color: var(--color-text-faint); font-style: italic; }

/* Form nav */
.form-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.form-nav .btn-ghost { margin-right: auto; }

/* Confirmation screen */
.confirmation-screen {
  text-align: center;
  padding-block: var(--space-8);
}
.confirmation-icon { width: 80px; height: 80px; margin-inline: auto; margin-bottom: var(--space-6); }
.confirmation-screen h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  max-width: 44ch;
  margin-inline: auto;
}
.confirmation-screen p {
  color: var(--color-text-muted);
  max-width: 48ch;
  margin-inline: auto;
  font-size: var(--text-base);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-text);
  color: #fff;
  padding-block: var(--space-12);
}
.footer-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.footer-logo {
  height: 32px;
  width: auto;
  margin-bottom: var(--space-2);
  /* script logo is coral; sits fine on dark bg, add subtle brightness lift */
  filter: brightness(1.15);
}
.footer-tagline {
  color: rgba(255,255,255,0.75);
  max-width: 56ch;
  font-size: var(--text-sm);
}
.footer-contact {
  color: rgba(255,255,255,0.9);
  font-weight: 600;
  font-size: var(--text-sm);
}
.footer-copyright {
  color: rgba(255,255,255,0.5);
  font-size: var(--text-xs);
  margin-top: var(--space-4);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .benefit-grid { grid-template-columns: 1fr; }
  .steps-row { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .header-nav { gap: var(--space-3); }
  .header-nav a:not(.btn) { display: none; }
  .logo-img { height: 32px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .hero-title { font-size: var(--text-2xl); }
  .form-card { padding: var(--space-5); border-radius: var(--radius-lg); }
  .form-nav { flex-wrap: wrap; }
  .form-nav .btn-ghost { margin-right: 0; order: 2; }
  .form-nav #btn-next, .form-nav #btn-submit { order: 1; width: 100%; }
  .review-row { flex-direction: column; gap: var(--space-1); }
  .review-row dd { text-align: left; }
}