/* ============================================
   The Referral Multiplier — Style System
   Matches RankRevy aesthetic: warm cream bg,
   bold headlines, clean layout.
   Accent: Teal instead of amber.
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Colors */
  --color-bg: #FAF9F6;
  --color-bg-alt: #F0EFEB;
  --color-text: #1a1a2e;
  --color-text-muted: #6b7280;
  --color-teal: #0D9488;
  --color-teal-dark: #0B7C72;
  --color-teal-light: #CCFBF1;
  --color-teal-bg: #F0FDFA;
  --color-white: #ffffff;
  --color-border: #e5e7eb;

  /* Typography */
  --font-display: 'Plus Jakarta Sans', 'DM Sans', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: var(--color-teal); text-decoration: none; }
a:hover { color: var(--color-teal-dark); }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-teal);
  color: var(--color-white);
  border-color: var(--color-teal);
}
.btn--primary:hover {
  background: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn--lg {
  font-size: 1.0625rem;
  padding: 1rem 2rem;
}

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

.btn--nav {
  background: var(--color-teal);
  color: var(--color-white);
  border-color: var(--color-teal);
  font-size: 0.875rem;
  padding: 0.625rem 1.25rem;
}
.btn--nav:hover {
  background: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  color: var(--color-white);
}

/* --- Section Labels & Titles --- */
.section-label {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-teal);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: var(--space-3xl);
  max-width: 640px;
}

/* --- NAV --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s ease;
}
.nav--scrolled { box-shadow: var(--shadow-sm); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.875rem var(--space-lg);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
  text-decoration: none;
}
.nav__logo:hover { color: var(--color-text); }
.nav__logo-icon { color: var(--color-teal); }

.nav__links {
  display: flex;
  gap: var(--space-xl);
}
.nav__links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}
.nav__links a:hover { color: var(--color-text); }

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.25s ease;
}

.nav__mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0 var(--space-lg) var(--space-lg);
}
.nav__mobile-menu a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.625rem 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
}
.nav__mobile-menu a:last-child { border-bottom: none; }
.nav__mobile-menu.active { display: flex; }

/* --- HERO --- */
.hero {
  padding: clamp(4rem, 10vw, 8rem) 0 clamp(3rem, 6vw, 5rem);
  text-align: center;
}

.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: var(--space-xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero__accent {
  color: var(--color-teal);
}

.hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.1875rem);
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.65;
}

.hero__ctas {
  margin-bottom: var(--space-lg);
}

.hero__sub-cta {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

.hero__checkout-link {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.hero__checkout-link a {
  font-weight: 600;
}

/* --- BADGES --- */
.badges {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.badges__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.badge {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.badge__icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.badge__text {
  font-size: 0.9375rem;
  line-height: 1.4;
  color: var(--color-text);
}

/* --- HOW IT WORKS --- */
.how-it-works {
  padding: var(--space-4xl) 0;
  background: var(--color-white);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.step { text-align: center; }

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-teal);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--space-lg);
}

.step__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.step__desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 320px;
  margin: 0 auto;
}

/* --- PRICING --- */
.pricing {
  padding: var(--space-4xl) 0;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  align-items: start;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.pricing__card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.pricing__card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.pricing__card--featured {
  border: 2px solid var(--color-teal);
  box-shadow: var(--shadow-md);
}

.pricing__card-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-teal);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing__card-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.pricing__plan-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.pricing__price {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-text);
}

.pricing__dollar {
  font-size: 1.5rem;
  vertical-align: super;
  font-weight: 700;
}

.pricing__period {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.pricing__features {
  list-style: none;
  margin-bottom: var(--space-xl);
}
.pricing__features li {
  font-size: 0.9375rem;
  padding: 0.5rem 0;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-bg-alt);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pricing__features li::before {
  content: '✓';
  color: var(--color-teal);
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}
.pricing__features li:last-child { border-bottom: none; }

/* --- GUARANTEE --- */
.guarantee {
  padding: var(--space-3xl) 0;
  background: var(--color-white);
}

.guarantee__box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-3xl);
  background: var(--color-teal-bg);
  border: 2px solid var(--color-teal);
  border-radius: var(--radius-lg);
}

.guarantee__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.guarantee__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.guarantee__text {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --- INDUSTRIES --- */
.industries {
  padding: var(--space-4xl) 0;
  text-align: center;
}

.industries__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.tag {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all 0.15s ease;
}
.tag:hover {
  border-color: var(--color-teal);
  color: var(--color-teal);
}

/* --- FINAL CTA --- */
.final-cta {
  padding: var(--space-4xl) 0;
  text-align: center;
  background: var(--color-teal);
  color: var(--color-white);
}

.final-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.final-cta__sub {
  font-size: 1.0625rem;
  opacity: 0.9;
  max-width: 560px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.6;
}

.final-cta__buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.final-cta .btn--primary {
  background: var(--color-white);
  color: var(--color-teal);
  border-color: var(--color-white);
}
.final-cta .btn--primary:hover {
  background: var(--color-teal-light);
  border-color: var(--color-teal-light);
  color: var(--color-teal-dark);
}

.final-cta .btn--outline {
  color: var(--color-white);
  border-color: var(--color-white);
}
.final-cta .btn--outline:hover {
  background: var(--color-white);
  color: var(--color-teal);
}

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

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}
.footer__logo-icon { color: var(--color-teal); }

.footer__separator { color: var(--color-border); }

.footer__links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}
.footer__links a { font-weight: 500; }

/* --- Scroll Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .btn--nav { display: none; }
  .nav__mobile-toggle { display: flex; }

  .badges__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }

  .section-title {
    margin-bottom: var(--space-2xl);
  }

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

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

@media (max-width: 480px) {
  .hero__headline {
    font-size: 1.75rem;
  }

  .hero {
    padding: 3rem 0 2.5rem;
  }
}