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

:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-bg: #ffffff;
  --color-text: #1f2937;
  --color-text-secondary: #6b7280;
  --color-section-alt: #f9fafb;
  --color-border: #e5e7eb;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Buttons === */
.btn {
  display: inline-block;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: background-color 0.2s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  padding: 14px 32px;
  font-size: 1.05rem;
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

/* === Hero === */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}

.hero__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.hero__logo {
  width: 36px;
  height: 36px;
  display: inline-flex;
}

.hero__logo svg {
  width: 100%;
  height: 100%;
  display: block;
}

.hero__badge {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-primary);
}

.hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 580px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

/* === Problem === */
.problem {
  padding: 72px 0;
  background: var(--color-section-alt);
}

.problem h2 {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 36px;
}

.problem__list {
  list-style: none;
  max-width: 600px;
  margin: 0 auto;
}

.problem__list li {
  position: relative;
  padding: 12px 0 12px 32px;
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.problem__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* === Solution === */
.solution {
  padding: 72px 0;
}

.solution h2 {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 48px;
}

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.feature {
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
}

.feature__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.feature__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature__desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* === How It Works === */
.how-it-works {
  padding: 72px 0;
  background: var(--color-section-alt);
}

.how-it-works h2 {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 48px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.step__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step__desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* === Pricing === */
.pricing {
  padding: 72px 0;
}

.pricing h2 {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 48px;
}

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

.pricing-card {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  background: var(--color-bg);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card__features {
  flex: 1;
}

.pricing-card--featured {
  border-color: var(--color-primary);
  border-width: 2px;
  box-shadow: 0 4px 24px rgba(37, 99, 235, 0.1);
}

.pricing-card__name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.pricing-card__price {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: 4px;
}

.pricing-card__period {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

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

.pricing-card__features li {
  padding: 6px 0;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  position: relative;
  padding-left: 20px;
}

.pricing-card__features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.pricing-card .btn {
  width: 100%;
}

.pricing-card .btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 12px 24px;
}

.pricing-card .btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.pricing-card--featured .btn--primary {
  padding: 12px 24px;
}

/* === Final CTA === */
.final-cta {
  padding: 80px 0;
  text-align: center;
}

.final-cta h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.final-cta__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.2s;
}

.modal-overlay:not([hidden]) {
  opacity: 1;
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  background: var(--color-bg);
  border-radius: 16px;
  padding: 40px;
  max-width: 440px;
  width: 90%;
  position: relative;
  text-align: center;
}

.modal__close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--color-text-secondary);
  line-height: 1;
}

.modal__close:hover {
  color: var(--color-text);
}

.modal__title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.modal__subtitle {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

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

.modal__input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 1rem;
  outline: none;
}

.modal__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.modal__consent {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: 8px;
}

.modal__consent a {
  color: var(--color-text-secondary);
  text-decoration: underline;
}

.modal__consent a:hover {
  color: var(--color-text);
}

.modal__message {
  margin-top: 20px;
  font-size: 1rem;
  font-weight: 500;
}

.modal__message--success {
  color: #059669;
}

.modal__message--error {
  color: #dc2626;
}

/* === Footer === */
.footer {
  padding: 32px 0;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

/* === Responsive === */
@media (max-width: 768px) {
  .hero {
    padding: 64px 0 56px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

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

  .steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .pricing__cards {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .modal__form {
    gap: 10px;
  }

  .problem,
  .solution,
  .how-it-works,
  .final-cta {
    padding: 56px 0;
  }
}