/* ==========================================================================
   PROFIT LIGHTS — STYLES
   ==========================================================================
   Organized top to bottom:
   1. Design tokens (CSS variables)
   2. Reset / base
   3. Layout helpers
   4. Header / footer
   5. Buttons
   6. Landing screen
   7. Calculator (questions, progress, options)
   8. Email screen
   9. Results screen (stats, profit lights)
   10. Utilities / accessibility
   ========================================================================== */

/* ---------- 1. DESIGN TOKENS ---------- */
:root {
  /* Color */
  --color-bg: #F5F6EF;          /* soft sage-tinted paper */
  --color-surface: #FFFFFF;
  --color-border: #DEE3D3;
  --color-text: #1E2A22;        /* deep forest charcoal */
  --color-text-muted: #5B6B60;

  --color-primary: #2F6B4F;     /* deep forest green — primary accent / CTA */
  --color-primary-dark: #234F3A;
  --color-primary-tint: #E6EEE7;

  --color-green: #2F6B4F;       /* profit light: green */
  --color-amber: #B8802C;       /* profit light: amber */
  --color-red: #B14A3A;         /* profit light: red */

  --color-error: #B14A3A;
  --color-focus: #2F6B4F;

  /* Type */
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  /* Layout */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --max-width-narrow: 560px;
}

/* ---------- 2. RESET / BASE ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--space-3);
  color: var(--color-text);
}

h1 { font-size: clamp(1.9rem, 6vw, 2.6rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 5vw, 2.1rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 var(--space-4); }

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

button { font-family: inherit; }

img { max-width: 100%; display: block; }

/* Visible keyboard focus everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
.option-card input:focus-visible + * {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---------- 3. LAYOUT HELPERS ---------- */
.container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

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

.screen {
  display: none;
  padding: var(--space-7) 0 var(--space-8);
  min-height: calc(100vh - 140px);
}

.screen.active { display: block; }

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary-dark);
  margin: 0 0 var(--space-3);
}

.lede {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 46ch;
}

/* Signature element: a quiet 3-segment "light strip" — an abstract nod to
   Profit Lights without literal traffic-light bulb imagery. */
.light-strip {
  display: flex;
  gap: var(--space-2);
  width: 84px;
  height: 5px;
  margin-bottom: var(--space-5);
}

.light-strip__segment {
  flex: 1;
  border-radius: var(--radius-pill);
}

.light-strip__segment--green { background: var(--color-green); }
.light-strip__segment--amber { background: var(--color-amber); }
.light-strip__segment--red { background: var(--color-red); }

/* ---------- 4. HEADER / FOOTER ---------- */
.site-header {
  padding: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.logo-mark {
  flex-shrink: 0;
  display: block;
}

.site-header__back {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-2) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
}

.site-header__back:hover,
.site-header__back:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

@media (max-width: 480px) {
  .site-header__back span { display: none; }
}

.site-footer {
  text-align: center;
  padding: var(--space-6) var(--space-5) var(--space-7);
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.site-footer p { margin: 0 0 var(--space-2); }
.site-footer a { color: var(--color-text-muted); }

/* ---------- 5. BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: none;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.5rem;
  cursor: pointer;
  transition: transform 0.12s ease, background-color 0.12s ease, opacity 0.12s ease;
  min-height: 48px; /* touch target */
}

.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover:not(:disabled) { background: var(--color-primary-dark); }

.btn--large {
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 1.05rem;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 0.85rem 1rem;
}
.btn--ghost:hover { color: var(--color-text); }

/* ---------- 6. LANDING ---------- */
.trust-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  padding: 0;
  margin: var(--space-6) 0 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.trust-list li { position: relative; padding-left: var(--space-4); }

.trust-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.explainer {
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.explainer__heading {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.explainer__intro {
  color: var(--color-text-muted);
  max-width: 46ch;
}

.explainer__steps {
  list-style: none;
  display: grid;
  gap: var(--space-5);
  margin: var(--space-5) 0 0;
  padding: 0;
}

.explainer__step {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.explainer__step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary-tint);
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.explainer__step h3 {
  margin: 0 0 var(--space-1);
  font-size: 1.05rem;
}

.explainer__step p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* ---------- 7. CALCULATOR ---------- */
.progress {
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

.progress__bar {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  transition: width 0.25s ease;
  width: 16.6%;
}

.progress__label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.question { display: none; }
.question.active { display: block; }

.question__label {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  padding: 0;
  border: none;
}

.question__hint {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-4);
}

.question__example {
  background: var(--color-primary-tint);
  color: var(--color-primary-dark);
  font-size: 0.85rem;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  margin: 0 0 var(--space-4);
}

.question__fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1.1rem;
  padding: 0.9rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
}

.input:focus { border-color: var(--color-primary); }

.input--select { appearance: auto; }
.input--email { margin-bottom: 0; }

.email-form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  margin-top: var(--space-4);
}
.email-form__label:first-of-type { margin-top: 0; }

.email-form__optional {
  font-weight: 400;
  color: var(--color-text-muted);
}

.input-prefix {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix__symbol {
  position: absolute;
  left: 1rem;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  pointer-events: none;
}

.input-prefix .input--number { padding-left: 2rem; }

.option-cards {
  display: grid;
  gap: var(--space-3);
}

.option-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color 0.12s ease, background-color 0.12s ease;
}

.option-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.option-card__title {
  font-weight: 600;
  font-size: 1rem;
}

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

.option-card:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-tint);
}

/* Fallback for browsers without :has() support: toggled via JS class too */
.option-card.is-checked {
  border-color: var(--color-primary);
  background: var(--color-primary-tint);
}

.question-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-6);
  gap: var(--space-3);
}

.question-nav .btn--primary { flex: 1; }

.form-error {
  color: var(--color-error);
  font-size: 0.9rem;
  margin-top: var(--space-3);
}

/* ---------- 8. EMAIL SCREEN ---------- */
#emailForm {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.fine-print {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}

/* ---------- 9. RESULTS ---------- */
.results-range {
  font-size: clamp(2rem, 8vw, 3rem);
}

.results-industry {
  color: var(--color-text-muted);
  margin-top: calc(-1 * var(--space-2));
}

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

.stat-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.stat-card__label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-1);
}

.stat-card__value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  margin: 0;
}

.lights-heading { margin-top: var(--space-6); }

.lights-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.light-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-left-width: 5px;
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.light-card--green { border-left-color: var(--color-green); }
.light-card--amber { border-left-color: var(--color-amber); }
.light-card--red { border-left-color: var(--color-red); }

.light-card__tag {
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  color: #fff;
  margin-top: 2px;
}

.light-card--green .light-card__tag { background: var(--color-green); }
.light-card--amber .light-card__tag { background: var(--color-amber); }
.light-card--red .light-card__tag { background: var(--color-red); }

.light-card__text { font-size: 0.95rem; margin: 0; }

.disclaimer {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-7);
}

.waitlist-note {
  background: var(--color-primary-tint);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-top: var(--space-5);
  font-size: 0.9rem;
  color: var(--color-primary-dark);
}
.waitlist-note a { font-weight: 600; }

.rerun-note {
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.98rem;
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-5) 0 var(--space-6);
}

#startOverBtn { margin-top: var(--space-4); }

/* ---------- 10. UTILITIES ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Small screens: tighten spacing ---------- */
@media (max-width: 380px) {
  .container { padding: 0 var(--space-4); }
  .screen { padding: var(--space-6) 0 var(--space-7); }
}