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

:root {
  --color-bg: #0a0a0f;
  --color-bg-alt: #111118;
  --color-bg-card: #16161f;
  --color-bg-card-hover: #1c1c28;
  --color-surface: #1e1e2a;
  --color-border: #2a2a3a;
  --color-text: #e8e8ef;
  --color-text-muted: #8888a0;
  --color-primary: #6c5ce7;
  --color-primary-light: #a29bfe;
  --color-primary-dark: #5a4bd1;
  --color-accent: #00e676;
  --color-accent-dim: #00c864;
  --color-warning: #ffc107;
  --color-profit: #00e676;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --nav-height: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,.3);
  --shadow-lg: 0 8px 48px rgba(0,0,0,.5);
  --transition: .2s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(108, 92, 231, .4);
}

.btn--outline {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.btn--lg {
  font-size: 17px;
  padding: 16px 36px;
  border-radius: var(--radius);
}

.btn--full {
  width: 100%;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(10, 10, 15, .85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -.02em;
}

.nav__logo-icon {
  font-size: 22px;
}

.nav__tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-primary-light);
  background: rgba(108, 92, 231, .12);
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid rgba(108, 92, 231, .25);
}

.nav__cta {
  font-size: 14px;
  padding: 8px 20px;
}

/* ===== HERO ===== */
.hero {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(108, 92, 231, .08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__headline {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: 24px;
}

.hero__headline-accent {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: 18px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero__sub strong {
  color: var(--color-text);
}

/* ===== TERMINAL ===== */
.terminal {
  background: #0d0d14;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #151520;
  border-bottom: 1px solid var(--color-border);
}

.terminal__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.terminal__dot--red { background: #ff5f56; }
.terminal__dot--yellow { background: #ffbd2e; }
.terminal__dot--green { background: #27c93f; }

.terminal__title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
  margin-left: auto;
  margin-right: auto;
}

.terminal__body {
  padding: 20px;
  min-height: 280px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
}

.terminal__line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  opacity: 0;
  animation: fadeIn .3s ease forwards;
}

.terminal__line--prompt .terminal__prompt {
  color: var(--color-accent);
  font-weight: 500;
}

.terminal__line--output {
  color: var(--color-text-muted);
  padding-left: 20px;
}

.terminal__line--success {
  color: var(--color-accent);
  padding-left: 20px;
}

.terminal__line--timer {
  color: var(--color-warning);
  padding-left: 20px;
}

.terminal__cursor {
  color: var(--color-accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* ===== STATS BAR ===== */
.stats {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 40px 0;
}

.stats__grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.stats__item {
  text-align: center;
}

.stats__number {
  display: block;
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -.02em;
  background: linear-gradient(135deg, var(--color-text), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stats__label {
  font-size: 14px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 500;
}

.stats__divider {
  width: 1px;
  height: 48px;
  background: var(--color-border);
}

/* ===== SECTION TITLES ===== */
.section-title {
  font-size: 36px;
  font-weight: 800;
  text-align: center;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}

.section-sub {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 17px;
  margin-bottom: 48px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== CALCULATOR ===== */
.calculator {
  padding: 96px 0;
}

.calc__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.calc__sliders {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.calc__slider-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.calc__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.calc__value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-primary-light);
  background: rgba(108, 92, 231, .1);
  padding: 2px 10px;
  border-radius: 4px;
}

.calc__range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--color-surface);
  outline: none;
  cursor: pointer;
}

.calc__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
  cursor: pointer;
  transition: all var(--transition);
}
.calc__range::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 0 2px var(--color-primary), 0 0 16px rgba(108, 92, 231, .4);
}

.calc__range::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
  cursor: pointer;
}

.calc__results {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.calc__results-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--color-text);
}

.calc__result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}
.calc__result-row:last-of-type {
  border-bottom: none;
}

.calc__result-label {
  font-size: 15px;
  color: var(--color-text-muted);
}

.calc__result-number {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.calc__result-number--highlight {
  color: var(--color-primary-light);
}

.calc__result-number--profit {
  font-size: 24px;
  color: var(--color-profit);
}

.calc__result-row--total {
  margin-top: 8px;
  padding-top: 20px;
  border-top: 2px solid var(--color-border);
  border-bottom: none;
}

.calc__disclaimer {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 16px;
  font-style: italic;
}

/* ===== HOW IT WORKS ===== */
.how {
  padding: 96px 0;
  background: var(--color-bg-alt);
}

.how__grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 24px;
}

.how__step {
  flex: 1;
  max-width: 300px;
  text-align: center;
  padding: 32px 24px;
}

.how__number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}

.how__step-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.how__step-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.how__arrow {
  font-size: 28px;
  color: var(--color-border);
  margin-top: 56px;
  flex-shrink: 0;
}

/* ===== FEATURES ===== */
.features {
  padding: 96px 0;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
}
.feature-card:hover {
  background: var(--color-bg-card-hover);
  border-color: rgba(108, 92, 231, .3);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.feature-card__icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===== PRICING ===== */
.pricing {
  padding: 96px 0;
  background: var(--color-bg-alt);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: all var(--transition);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 40px rgba(108, 92, 231, .15);
  transform: scale(1.03);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.pricing-card__lock {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-surface);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  text-align: center;
}

.pricing-card__name {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-card__price {
  margin-bottom: 24px;
}

.pricing-card__amount {
  font-size: 44px;
  font-weight: 900;
  letter-spacing: -.03em;
}

.pricing-card__period {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-left: 4px;
}

.pricing-card__features {
  list-style: none;
  margin-bottom: 28px;
}

.pricing-card__features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pricing-card__features li::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: 700;
  font-size: 14px;
}

.pricing-card--locked {
  opacity: .75;
}
.pricing-card--locked .pricing-card__features li::before {
  color: var(--color-text-muted);
}

/* ===== FINAL CTA ===== */
.cta {
  padding: 96px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(108, 92, 231, .1) 0%, transparent 70%);
  pointer-events: none;
}

.cta__title {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}

.cta__sub {
  font-size: 18px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

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

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 18px;
}

.footer__copy {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero__headline {
    font-size: 36px;
  }

  .calc__grid {
    grid-template-columns: 1fr;
  }

  .features__grid {
    grid-template-columns: 1fr 1fr;
  }

  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .pricing-card--featured {
    transform: none;
  }

  .how__grid {
    flex-direction: column;
    align-items: center;
  }

  .how__arrow {
    transform: rotate(90deg);
    margin-top: 0;
  }

  .stats__divider {
    display: none;
  }

  .stats__grid {
    gap: 32px;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 120px 0 60px;
  }

  .hero__headline {
    font-size: 28px;
  }

  .section-title {
    font-size: 28px;
  }

  .cta__title {
    font-size: 28px;
  }

  .features__grid {
    grid-template-columns: 1fr;
  }

  .stats__grid {
    flex-direction: column;
    gap: 20px;
  }

  .nav__tag {
    display: none;
  }

  .footer__inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}