:root {
  --color-bg: #0a0a0f;
  --color-bg-card: rgba(255, 255, 255, 0.04);
  --color-bg-card-hover: rgba(255, 255, 255, 0.07);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-active: rgba(0, 212, 255, 0.5);
  --color-surface: rgba(255, 255, 255, 0.06);
  --color-text: #e8e8ed;
  --color-text-secondary: #a8a8b5;
  --color-text-muted: #8a8a95;
  --color-accent: #00d4ff;
  --color-accent-green: #00ff87;
  --color-accent-red: #ff4d6a;
  --color-accent-glow: rgba(0, 212, 255, 0.15);
  --color-white: #ffffff;
  --color-input-bg: rgba(255, 255, 255, 0.03);

  --font-poppins: 'Poppins', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Space Mono', 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --text-caption: 11px;
  --text-body: 14px;
  --text-body-lg: 16px;
  --text-subheading: 20px;
  --text-heading-sm: 24px;
  --text-heading: 36px;
  --text-heading-lg: 44px;
  --text-display: 64px;
  --text-display-xl: 80px;

  --spacing-8: 8px;
  --spacing-10: 10px;
  --spacing-12: 12px;
  --spacing-15: 15px;
  --spacing-16: 16px;
  --spacing-20: 20px;
  --spacing-26: 26px;
  --spacing-30: 30px;
  --spacing-35: 35px;
  --spacing-40: 40px;
  --spacing-60: 60px;
  --spacing-80: 80px;
  --spacing-100: 100px;

  --page-max-width: 1200px;
  --card-padding: 32px;
  --element-gap: 20px;

  --radius-sm: 6px;
  --radius-lg: 12px;
  --radius-full: 100px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-poppins);
  background: var(--color-bg);
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.container {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-20);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  text-decoration: none;
  cursor: pointer;
  border: none;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  padding: var(--spacing-16) var(--spacing-26);
  font-weight: 700;
}

.btn-primary:hover {
  background: var(--color-accent-green);
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  padding: var(--spacing-15) var(--spacing-20);
}

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

.hero {
  background: linear-gradient(160deg, #0a0a0f 0%, #0d1520 50%, #0a0f18 100%);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-40) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-60);
  width: 100%;
}

.hero-text {
  text-align: center;
  max-width: 700px;
}

.hero-title {
  font-size: var(--text-display);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -1px;
  color: var(--color-text);
  margin: 0 0 var(--spacing-20);
}

.grad {
  font-family: var(--font-mono);
  font-weight: 700;
  background: linear-gradient(120deg, #00d4ff 0%, #00ff87 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: var(--text-body-lg);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 auto var(--spacing-30);
  max-width: 520px;
}

.trust {
  display: flex;
  gap: var(--spacing-20);
  flex-wrap: wrap;
  justify-content: center;
}

.trust-item {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-secondary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.check {
  color: var(--color-accent-green);
}

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--spacing-20);
  width: 100%;
  max-width: 520px;
}

.quiz-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-40);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.quiz-head {
  display: flex;
  align-items: center;
  gap: var(--spacing-20);
  margin-bottom: var(--spacing-40);
}

.quiz-progress {
  flex: 1;
  height: 3px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

#progress-fill {
  display: block;
  height: 100%;
  width: 10%;
  background: linear-gradient(90deg, #00d4ff, #00ff87);
  transition: width 0.3s ease;
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
}

.quiz-count {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-secondary);
  white-space: nowrap;
  letter-spacing: 1px;
}

.slide { display: none; }

.slide.active {
  display: block;
  animation: fade 0.25s ease;
}

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

.q-title {
  font-size: var(--text-heading-sm);
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 var(--spacing-30);
}

.q-input {
  font-family: var(--font-mono);
  font-size: var(--text-subheading);
  color: var(--color-text);
  padding: var(--spacing-20) var(--spacing-26);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-input-bg);
  width: 100%;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.q-input::placeholder {
  color: var(--color-text-muted);
}

.q-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.1);
}

select.q-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%237a7a85' d='M6 8 0 0h12z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 24px center;
  cursor: pointer;
}

select.q-input option {
  background: #1a1a25;
  color: var(--color-text);
}

.options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
}

.option {
  display: block;
  width: 100%;
  text-align: left;
  font-family: var(--font-poppins);
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text-secondary);
  padding: var(--spacing-20) var(--spacing-26);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-input-bg);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.option:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
  background: var(--color-bg-card-hover);
}

.option.selected {
  border-color: var(--color-accent);
  background: var(--color-accent-glow);
  color: var(--color-accent);
}

.quiz-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-15);
  margin-top: var(--spacing-40);
}

.result {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--card-padding);
  text-align: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.result-score {
  font-family: var(--font-mono);
  font-size: var(--text-display-xl);
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
}

.result-title {
  font-size: var(--text-heading-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-top: var(--spacing-15);
}

.result-desc {
  font-size: var(--text-body-lg);
  color: var(--color-text-secondary);
  margin: var(--spacing-15) 0 var(--spacing-30);
  line-height: 1.6;
}

.cta-block {
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--spacing-30);
  color: var(--color-text);
}

.cta-block h3 {
  font-size: var(--text-subheading);
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 var(--spacing-8);
}

.cta-block p {
  font-size: var(--text-body);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-20);
}

.lead-form {
  display: flex;
  gap: var(--spacing-12);
  justify-content: center;
  flex-wrap: wrap;
}

.lead-form input {
  font-family: var(--font-mono);
  font-size: var(--text-body);
  padding: var(--spacing-15) var(--spacing-20);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  min-width: 260px;
  outline: none;
  background: var(--color-input-bg);
  color: var(--color-text);
}

.lead-form input:focus {
  border-color: var(--color-accent);
}

.lead-success {
  margin-top: var(--spacing-15);
  color: var(--color-accent-green);
  font-weight: 500;
  font-size: var(--text-body);
}

.hidden { display: none; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-title { animation: fadeUp 0.7s ease both; }
.hero-sub { animation: fadeUp 0.7s ease 0.15s both; }
.trust { animation: fadeUp 0.7s ease 0.3s both; }
.hero-visual { animation: fadeUp 0.7s ease 0.35s both; }

#result:not(.hidden) {
  animation: fadeUp 0.5s ease both;
}

@media (max-width: 900px) {
  .hero-title { font-size: var(--text-heading-lg); }
  .hero-visual { max-width: 100%; }
}