/* The Goldmine — Duolingo-inspired design tokens */
:root {
  --duo-green: #58CC02;
  --duo-green-light: #61E002;
  --duo-green-dark: #46A302;
  --duo-green-shadow: #58A700;
  --ink: #3C3C3C;
  --ink-strong: #4B4B4B;
  --muted: #777777;
  --muted-light: #AFAFAF;
  --canvas: #FFFFFF;
  --wash-blue: #DDF4FF;
  --wash-gold: #FFF8E1;
  --surface: #FFFFFF;
  --surface-alt: #F7F7F7;
  --border: #E5E5E5;
  --border-strong: #DADADA;
  --link-blue: #1CB0F6;
  --link-blue-dark: #1B99D6;
  --navy: #042C60;
  --super-navy: #100F3E;
  --warning: #FFC800;
  --warning-dark: #E6B400;
  --streak: #FF9600;
  --error: #FF4B4B;
  --footer-soft: #D7FFB8;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;
  --max-width: 988px;
  --wide-width: 1090px;
  --section-pad: 96px;
  --font-body: "Nunito", "din-round", sans-serif;
  --font-display: "Fredoka", "feather", sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.41;
  color: var(--muted);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--link-blue);
  text-decoration: none;
}

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

:focus-visible {
  outline: 3px solid var(--link-blue);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 1000;
  padding: 12px 20px;
  background: var(--duo-green);
  color: #fff;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-transform: uppercase;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--canvas);
  border-bottom: 2px solid var(--border);
  height: 72px;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--duo-green);
  text-decoration: none;
}

.logo:hover {
  color: var(--duo-green-dark);
}

.logo__icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-cta {
  display: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 0 24px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.1s ease, background-color 0.15s ease, box-shadow 0.1s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--duo-green);
  color: #fff;
  box-shadow: 0 4px 0 var(--duo-green-shadow);
}

.btn--primary:hover {
  background: var(--duo-green-light);
  color: #fff;
}

.btn--primary:active {
  transform: translateY(4px);
  box-shadow: none;
  background: var(--duo-green-dark);
}

.btn--secondary {
  background: var(--surface);
  color: var(--link-blue);
  border: 2px solid var(--border);
  box-shadow: 0 4px 0 var(--border-strong);
}

.btn--secondary:hover {
  background: var(--wash-blue);
  border-color: var(--link-blue);
  color: var(--link-blue-dark);
}

.btn--secondary:active {
  transform: translateY(4px);
  box-shadow: none;
}

.btn--gold {
  background: var(--warning);
  color: var(--ink-strong);
  box-shadow: 0 4px 0 var(--warning-dark);
}

.btn--gold:hover {
  background: #FFD633;
  color: var(--ink-strong);
}

.btn--gold:active {
  transform: translateY(4px);
  box-shadow: none;
}

.btn--wide {
  min-width: 280px;
}

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

/* Hero */
.hero {
  padding: 48px 0 64px;
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.hero__visual {
  order: -1;
  display: flex;
  justify-content: center;
}

.hero__illustration {
  width: 100%;
  max-width: 420px;
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero__content {
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--wash-gold);
  border: 2px solid var(--warning);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  color: var(--streak);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(42px, 8vw, 64px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--duo-green);
  margin-bottom: 16px;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink-strong);
  margin-bottom: 16px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero__desc {
  font-size: 17px;
  line-height: 1.5;
  color: var(--muted);
  max-width: 480px;
  margin: 0 auto 32px;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 2px solid var(--border);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.trust-item svg {
  flex-shrink: 0;
}

/* Chip rail */
.chip-rail {
  border-top: 2px solid var(--border);
  border-bottom: 2px solid var(--border);
  padding: 20px 0;
  background: var(--surface-alt);
}

.chip-rail__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.chip__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.chip__dot--green { background: var(--duo-green); }
.chip__dot--blue { background: var(--link-blue); }
.chip__dot--gold { background: var(--warning); }
.chip__dot--orange { background: var(--streak); }

/* Benefits */
.benefits {
  padding: var(--section-pad) 0;
}

.section-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--link-blue);
  margin-bottom: 12px;
  text-align: center;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--duo-green);
  text-align: center;
  margin-bottom: 16px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-desc {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 48px;
  font-size: 17px;
  line-height: 1.5;
}

.benefits__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.benefit-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: 0 4px 0 var(--border-strong);
  transition: transform 0.15s ease;
}

.benefit-card:hover {
  transform: translateY(-2px);
}

.benefit-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.benefit-card__icon--green { background: #E5F9D4; }
.benefit-card__icon--blue { background: var(--wash-blue); }
.benefit-card__icon--gold { background: var(--wash-gold); }
.benefit-card__icon--orange { background: #FFE8CC; }

.benefit-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-strong);
  margin-bottom: 8px;
}

.benefit-card__text {
  font-size: 15px;
  line-height: 1.5;
  color: var(--muted);
}

/* Feature sections */
.feature {
  padding: var(--section-pad) 0;
}

.feature--alt {
  background: var(--wash-blue);
}

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

.feature__grid--reverse .feature__visual {
  order: -1;
}

.feature__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--duo-green);
  margin-bottom: 16px;
}

.feature__text {
  font-size: 17px;
  line-height: 1.5;
  margin-bottom: 24px;
}

.feature__list {
  list-style: none;
  margin-bottom: 32px;
}

.feature__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 16px;
  color: var(--ink);
}

.feature__list li svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.feature__visual {
  display: flex;
  justify-content: center;
}

.feature__card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: 0 6px 0 var(--border-strong);
  width: 100%;
  max-width: 440px;
}

/* How it works */
.how-it-works {
  padding: var(--section-pad) 0;
  background: var(--surface-alt);
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  counter-reset: step;
}

.step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: 0 4px 0 var(--border-strong);
}

.step__number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--duo-green);
  color: #fff;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 0 var(--duo-green-shadow);
}

.step__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-strong);
  margin-bottom: 6px;
}

.step__text {
  font-size: 15px;
  line-height: 1.5;
}

/* Social proof */
.proof {
  padding: var(--section-pad) 0;
}

.proof__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.proof-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
}

.proof-card::before {
  content: "\201C";
  font-family: var(--font-display);
  font-size: 64px;
  color: var(--duo-green);
  line-height: 1;
  position: absolute;
  top: 12px;
  left: 20px;
  opacity: 0.3;
}

.proof-card__text {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  margin-bottom: 16px;
  padding-top: 24px;
  font-style: italic;
}

.proof-card__author {
  font-size: 14px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.stat {
  text-align: center;
  padding: 24px 16px;
  background: var(--wash-blue);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
}

.stat__value {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--link-blue);
  line-height: 1;
  margin-bottom: 6px;
}

.stat__label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* Dark promo block */
.promo-dark {
  background: var(--super-navy);
  padding: var(--section-pad) 0;
  color: #fff;
  text-align: center;
}

.promo-dark .section-label {
  color: var(--footer-soft);
}

.promo-dark .section-title {
  color: #fff;
}

.promo-dark .section-desc {
  color: rgba(255, 255, 255, 0.75);
}

.promo-dark__values {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 40px 0 48px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.value-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  text-align: left;
}

.value-pill svg {
  flex-shrink: 0;
}

/* Final CTA */
.final-cta {
  padding: var(--section-pad) 0 64px;
  text-align: center;
  background: linear-gradient(180deg, var(--canvas) 0%, #E8FCD4 100%);
}

.final-cta__box {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  box-shadow: 0 6px 0 var(--duo-green-shadow);
  max-width: 640px;
  margin: 0 auto;
}

.final-cta__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--duo-green);
  margin-bottom: 12px;
}

.final-cta__text {
  font-size: 17px;
  margin-bottom: 32px;
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta__note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--muted-light);
}

/* Footer */
.site-footer {
  background: var(--duo-green);
  color: #fff;
  padding: 48px 0 32px;
}

.site-footer a {
  color: var(--footer-soft);
}

.site-footer a:hover {
  color: #fff;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.footer__tagline {
  font-size: 15px;
  color: var(--footer-soft);
  max-width: 280px;
}

.footer__heading {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  margin-bottom: 12px;
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: 8px;
}

.footer__links a {
  font-size: 15px;
  font-weight: 600;
}

.footer__bottom {
  border-top: 2px solid rgba(255, 255, 255, 0.2);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13px;
  color: var(--footer-soft);
}

.footer__disclaimer {
  font-size: 12px;
  line-height: 1.5;
  max-width: 720px;
}

/* Mock UI inside feature cards */
.mock-alert {
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 12px;
}

.mock-alert__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.mock-alert__tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--duo-green);
  color: #fff;
}

.mock-alert__time {
  font-size: 12px;
  color: var(--muted-light);
}

.mock-alert__pair {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink-strong);
  margin-bottom: 12px;
}

.mock-levels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.mock-level {
  text-align: center;
  padding: 10px 6px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 2px solid var(--border);
}

.mock-level__label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--muted-light);
  margin-bottom: 4px;
}

.mock-level__value {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.mock-level--entry .mock-level__value { color: var(--duo-green); }
.mock-level--stop .mock-level__value { color: var(--error); }
.mock-level--target .mock-level__value { color: var(--link-blue); }

.mock-discord {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mock-msg {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.mock-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.mock-avatar--1 { background: var(--link-blue); }
.mock-avatar--2 { background: var(--streak); }
.mock-avatar--3 { background: var(--duo-green); }

.mock-msg__body {
  flex: 1;
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.mock-msg__name {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-strong);
  margin-bottom: 2px;
}

.mock-msg__text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.4;
}

/* Responsive */
@media (min-width: 640px) {
  .benefits__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-bar {
    grid-template-columns: repeat(4, 1fr);
  }

  .promo-dark__values {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (min-width: 768px) {
  .nav-cta {
    display: inline-flex;
  }

  .hero__grid {
    grid-template-columns: 424px 1fr;
    gap: 48px;
  }

  .hero__visual {
    order: 0;
  }

  .hero__content {
    text-align: left;
  }

  .hero__subtitle,
  .hero__desc {
    margin-left: 0;
    margin-right: 0;
  }

  .hero__actions {
    flex-direction: row;
    align-items: flex-start;
  }

  .hero__trust {
    justify-content: flex-start;
  }

  .benefits__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .feature__grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }

  .feature__grid--reverse .feature__visual {
    order: 0;
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .benefits__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero__illustration {
    animation: none;
  }

  .btn, .benefit-card {
    transition: none;
  }
}