/* Volts landing – paleta y estilos alineados con app_theme.dart */

:root {
  --primary: #E85D04;
  --primary-hover: #d15303;
  --secondary: #84CC16;
  --surface: #0a0f1e;
  --surface-container: #121212;
  --surface-container-high: #1C1C1E;
  --on-surface: #F5F5F7;
  --on-surface-variant: #8E8E93;
  --outline: #38383A;
  --font-family: 'Roboto', system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-family);
  background-color: var(--surface);
  color: var(--on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--surface-container);
  border-bottom: 1px solid var(--outline);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0;
}

.header-logo {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.header-logo-link {
  display: block;
  line-height: 0;
  text-decoration: none;
}

.header-brand {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--on-surface);
}

/* Hero */
.hero {
  padding: 3rem 0 4rem;
  text-align: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.hero-icon {
  width: 120px;
  height: 120px;
  border-radius: 26px;
  display: block;
}

.hero-title {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--on-surface);
  letter-spacing: -0.02em;
}

.hero-tagline {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--secondary);
}

.hero-desc {
  margin: 0;
  max-width: 32ch;
  font-size: 1rem;
  color: var(--on-surface-variant);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

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

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

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

.btn-secondary {
  background-color: var(--surface-container-high);
  color: var(--on-surface);
  border: 1px solid var(--outline);
}

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

/* Features */
.features {
  padding: 3rem 0 4rem;
  background-color: var(--surface-container);
}

.features-title {
  margin: 0 0 2rem;
  font-size: 1.75rem;
  font-weight: 600;
  text-align: center;
  color: var(--on-surface);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background-color: var(--surface-container-high);
  border: 1px solid var(--outline);
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.feature-heading {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--on-surface);
}

.feature-text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--on-surface-variant);
}

/* CTA section */
.cta-section {
  padding: 3rem 0 4rem;
  text-align: center;
}

.cta-text {
  margin: 0 0 1.5rem;
  font-size: 1.125rem;
  color: var(--on-surface-variant);
}

.cta-section .hero-ctas {
  margin-top: 0;
}

/* Footer */
.footer {
  padding: 1.5rem 0;
  border-top: 1px solid var(--outline);
  background-color: var(--surface-container);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

@media (min-width: 480px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-copy {
  margin: 0;
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
  justify-content: center;
}
@media (min-width: 480px) {
  .footer-links {
    justify-content: flex-end;
  }
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--secondary);
}