/* ============================================
   AIMPL v2 — style2.css — Light mode
   Linear/Vercel energy. Clean, confident, techy.
   ============================================ */

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

:root {
  --bg: #ffffff;
  --bg-subtle: #f7f7f8;
  --bg-dark: #0f0f10;
  --bg-dark2: #1a1a1d;
  --surface: #f0f0f2;
  --border: #e4e4e7;
  --border-strong: #d4d4d8;
  --black: #09090b;
  --near-black: #18181b;
  --grey-700: #3f3f46;
  --grey-500: #71717a;
  --grey-300: #a1a1aa;
  --grey-100: #f4f4f5;
  --white: #ffffff;
  --accent: #2563eb;
  --accent-light: #eff6ff;
  --accent-border: rgba(37,99,235,0.2);
  --sans: 'Inter', -apple-system, system-ui, sans-serif;
  --max: 1080px;
  --tr: 0.15s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--black);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--black);
  text-decoration: none;
  letter-spacing: -0.04em;
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--grey-500);
  text-decoration: none;
  transition: color var(--tr);
}

.nav-link:hover { color: var(--black); }

/* ============================================
   HERO — white, clean
   ============================================ */
.hero {
  background: var(--bg);
  padding: 100px 0 80px;
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-border);
  background: var(--accent-light);
  padding: 5px 12px;
  border-radius: 99px;
  margin-bottom: 24px;
}

.hero-text h1 {
  font-size: clamp(2.75rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.0;
  color: var(--black);
  margin-bottom: 18px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--grey-500);
  line-height: 1.65;
  font-weight: 400;
}

/* ============================================
   QUIZ — on white background, card with border
   ============================================ */
.quiz-wrap {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 40px 40px 36px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.04), 0 12px 40px rgba(0,0,0,0.06);
}

.quiz-heading {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--black);
  margin-bottom: 32px;
}

.quiz-meta,
.quiz-step,
.quiz-track,
.quiz-fill { display: none; }

/* Chips */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--grey-700);
  background: var(--grey-100);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 5px 13px;
  cursor: pointer;
  transition: background var(--tr), border-color var(--tr), color var(--tr);
  user-select: none;
  line-height: 1.4;
}

.chip:hover {
  background: var(--border);
  border-color: var(--border-strong);
  color: var(--black);
}

.chip.selected {
  background: var(--accent-light);
  border-color: var(--accent-border);
  color: var(--accent);
}

.question { display: none; }
.question.active {
  display: block;
  animation: fadeUp 0.25s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.question label {
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 6px;
}

.q-hint {
  font-size: 0.8125rem;
  color: var(--grey-300);
  margin-bottom: 14px;
  line-height: 1.5;
}

.question textarea,
.question input[type="text"],
.question input[type="email"] {
  width: 100%;
  padding: 12px 14px;
  background: var(--grey-100);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--sans);
  font-size: 0.9375rem;
  color: var(--black);
  outline: none;
  resize: vertical;
  transition: border-color var(--tr), background var(--tr);
  line-height: 1.5;
}

.question textarea::placeholder,
.question input::placeholder { color: var(--grey-300); }

.question textarea:focus,
.question input:focus {
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.q-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
}

/* Buttons */
.btn-next {
  display: inline-flex;
  align-items: center;
  background: var(--black);
  color: var(--white);
  font-family: var(--sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background var(--tr), transform var(--tr);
}

.btn-next:hover { background: var(--near-black); transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--grey-500);
  font-family: var(--sans);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--tr), color var(--tr);
}

.btn-ghost:hover { border-color: var(--border-strong); color: var(--black); }

.btn-skip {
  background: none;
  border: none;
  color: var(--grey-300);
  font-family: var(--sans);
  font-size: 0.8125rem;
  cursor: pointer;
  padding: 10px 8px;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--tr);
}

.btn-skip:hover { color: var(--grey-500); }

/* Loading */
.loading-inner {
  text-align: center;
  padding: 48px 0;
}

.loader {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-top-color: var(--black);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto 16px;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-inner p { color: var(--grey-500); font-size: 0.9375rem; margin-bottom: 4px; }
.loading-inner span { font-size: 0.8125rem; color: var(--grey-300); }

/* Output */
.out-label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.out-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.out-sub { font-size: 0.875rem; color: var(--grey-300); margin-bottom: 24px; }

.tool-card {
  background: var(--grey-100);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 16px;
  margin-bottom: 10px;
}

.tool-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.tool-priority {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid var(--accent-border);
  padding: 2px 8px;
  border-radius: 99px;
}

.tool-card h3 { font-size: 0.9375rem; font-weight: 600; color: var(--black); letter-spacing: -0.01em; }
.tool-card p { font-size: 0.875rem; color: var(--grey-500); line-height: 1.6; margin-bottom: 6px; }
.tool-value { font-size: 0.8125rem; color: var(--grey-300); font-style: italic; }

.out-cta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.out-cta p { font-size: 0.9rem; color: var(--grey-500); }

#errorMsg { text-align: center; padding: 32px 0; }
#errorMsg p { color: var(--grey-500); margin-bottom: 16px; font-size: 0.9375rem; }
#errorMsg a { color: var(--accent); }

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.section-tag {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section h2 {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--black);
  margin-bottom: 64px;
}

/* ============================================
   RESULTS — full width
   ============================================ */
.results-hero {
  background: var(--bg-dark);
  padding: 80px 0 64px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.results-hero .out-label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.results-hero .out-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 16px;
}

.results-hero .out-sub {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.4);
  font-weight: 300;
}

.results-body {
  background: var(--bg-subtle);
  padding: 64px 0 96px;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 64px;
}

.tool-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: box-shadow var(--tr);
}

.tool-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.tool-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.tool-priority {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid var(--accent-border);
  padding: 3px 10px;
  border-radius: 99px;
}

.tool-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.02em;
}

.tool-card p {
  font-size: 0.9375rem;
  color: var(--grey-500);
  line-height: 1.65;
  margin-bottom: 10px;
}

.tool-value {
  font-size: 0.875rem;
  color: var(--grey-300);
  font-style: italic;
}

.results-cta {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.results-cta h3 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--black);
  margin-bottom: 10px;
}

.results-cta p {
  font-size: 1rem;
  color: var(--grey-500);
  margin-bottom: 24px;
  line-height: 1.6;
}

/* ============================================
   OPPORTUNITY — light grey bg
   ============================================ */
.opp-section { background: var(--bg-subtle); }

.opp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.opp-item {
  background: var(--white);
  padding: 40px 36px;
  transition: background var(--tr);
}

.opp-item:hover { background: var(--bg-subtle); }

.opp-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 18px;
  color: var(--accent);
}

.opp-icon svg { width: 100%; height: 100%; }

.opp-item h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.opp-item p { font-size: 0.9rem; color: var(--grey-500); line-height: 1.65; }

/* ============================================
   SHIFT — cleaner contrast
   ============================================ */
.shift-section {
  background: #0f0f10;
  border-top: none;
}

.shift-section .section-tag { color: rgba(255,255,255,0.3); }
.shift-section h2 { color: var(--white); }

.shift-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.shift-col {
  padding: 40px 36px;
  border-radius: 12px;
}

.before-col {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
}

.after-col {
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.2);
}

.col-label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 28px;
  display: block;
}

.before-col .col-label { color: rgba(255,255,255,0.3); }
.after-col  .col-label { color: var(--accent); }

.shift-col ul { list-style: none; }

.shift-col li {
  font-size: 0.9375rem;
  line-height: 1.6;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.shift-col li:last-child { border-bottom: none; }

.before-col li { color: rgba(255,255,255,0.45); }
.after-col  li { color: rgba(255,255,255,0.9); font-weight: 500; }

.li-icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 3px;
}

.before-col .li-icon { color: rgba(255,255,255,0.2); }
.after-col  .li-icon { color: var(--accent); }

/* ============================================
   WHAT WE BUILD — white
   ============================================ */
.builds-section { background: var(--bg); }

.builds-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.build-item {
  background: var(--white);
  padding: 36px 32px;
  transition: background var(--tr);
}

.build-item:hover { background: var(--bg-subtle); }

.build-n {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--grey-300);
  margin-bottom: 12px;
}

.build-item h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 8px;
}

.build-item p { font-size: 0.875rem; color: var(--grey-500); line-height: 1.6; }

/* ============================================
   HOW IT WORKS — subtle bg
   ============================================ */
.how-section { background: var(--bg-subtle); }

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.how-item::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 20px;
  border-radius: 99px;
}

.how-n {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--grey-300);
  margin-bottom: 10px;
}

.how-item h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--black);
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.how-item p { font-size: 0.9rem; color: var(--grey-500); line-height: 1.65; }

/* ============================================
   CONTACT — white
   ============================================ */
.contact-section { background: var(--bg); }

.contact-form {
  max-width: 540px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-field { display: flex; flex-direction: column; gap: 6px; }

.form-field label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--grey-700);
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--grey-100);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--sans);
  font-size: 0.9375rem;
  color: var(--black);
  outline: none;
  resize: vertical;
  transition: border-color var(--tr), background var(--tr);
}

.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--grey-300); }

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-ok  { color: #16a34a; font-size: 0.9rem; padding: 8px 0; }
.form-err { color: #dc2626; font-size: 0.9rem; padding: 8px 0; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer .logo { font-size: 1rem; }
.footer-tag  { font-size: 0.8125rem; color: var(--grey-300); }
.footer-copy { font-size: 0.75rem; color: var(--grey-300); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding: 72px 0 56px; }
  .opp-grid, .builds-grid { grid-template-columns: repeat(2, 1fr); }
  .how-grid { grid-template-columns: 1fr; gap: 32px; }
  .shift-grid { grid-template-columns: 1fr; }
  .container, .nav-inner, .hero-inner { padding-left: 24px; padding-right: 24px; }
}

@media (max-width: 600px) {
  .section { padding: 80px 0; }
  .section h2 { margin-bottom: 44px; }
  .opp-grid, .builds-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .quiz-wrap { padding: 24px 20px; border-radius: 12px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}