/* ============================================
   Libro de Clientes — Public Site Styles
   Based on designPublic.md tokens
   ============================================ */

/* --- Tokens --- */
:root {
  /* Colors */
  --color-sprout-orange: #ff4800;
  --color-canvas-cream: #fcfcfa;
  --color-warm-parchment: #f8f5ee;
  --color-ink: #1f1f1f;
  --color-pure-black: #000000;
  --color-graphite: #60605f;
  --color-mist: #cacac8;
  --color-peach-wash: #fcded2;
  --color-deep-teal: #042729;

  /* Typography */
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-serif: 'Source Serif 4', ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;

  /* Type Scale */
  --text-caption: 0.75rem;
  --text-body-sm: 0.875rem;
  --text-body: 1rem;
  --text-subheading: 1.125rem;
  --text-heading-sm: 1.375rem;
  --text-heading: 1.5rem;
  --text-heading-lg: 2.5rem;
  --text-heading-xl: 3rem;
  --text-display: 5rem;

  /* Spacing */
  --spacing-4: 4px;
  --spacing-8: 8px;
  --spacing-12: 12px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-28: 28px;
  --spacing-32: 32px;
  --spacing-40: 40px;
  --spacing-48: 48px;
  --spacing-56: 56px;
  --spacing-64: 64px;
  --spacing-80: 80px;

  /* Layout */
  --page-max-width: 1200px;

  /* Radius */
  --radius-nav: 8px;
  --radius-cards: 16px;
  --radius-badges: 4px;
  --radius-images: 16px;
  --radius-buttons: 8px;

  /* Surfaces */
  --surface-page-canvas: #fcfcfa;
  --surface-parchment-band: #f8f5ee;
  --surface-peach-wash: #fcded2;
  --surface-card-surface: #fcfcfa;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: 1.56;
  color: var(--color-ink);
  background-color: var(--color-canvas-cream);
  overflow-x: hidden;
}

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

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

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-24);
}

.section {
  padding: var(--spacing-80) 0;
}

.section--parchment {
  background-color: var(--color-warm-parchment);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--color-ink);
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.5rem, 5vw, var(--text-heading-xl));
  line-height: 1.1;
}

h2 {
  font-size: clamp(1.75rem, 3vw, var(--text-heading-lg));
  line-height: 1.15;
}

h3 {
  font-size: var(--text-heading);
  line-height: 1.25;
}

p {
  max-width: 65ch;
}

.text-muted {
  color: var(--color-graphite);
}

/* --- Navigation --- */
.nav {
  background-color: var(--color-canvas-cream);
  padding: var(--spacing-16) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-24);
}

.nav__logo {
  flex-shrink: 0;
}

.nav__logo img {
  height: 36px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-24);
  list-style: none;
}

.nav__link {
  font-size: var(--text-body-sm);
  font-weight: 400;
  color: var(--color-ink);
  white-space: nowrap;
  transition: color 0.2s;
}

.nav__link:hover {
  color: var(--color-sprout-orange);
}

.nav__link--login {
  font-weight: 500;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-8);
  background-color: var(--color-sprout-orange);
  color: #fff;
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 500;
  padding: var(--spacing-8) var(--spacing-16);
  border-radius: var(--radius-buttons);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.2s;
  text-decoration: none;
}

.nav__cta:hover {
  background-color: #e63e00;
}

/* Hamburger */
.nav__hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-ink);
  padding: var(--spacing-4);
}

/* --- Hero --- */
.hero {
  background-color: var(--color-warm-parchment);
  padding: var(--spacing-80) 0;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-64);
  align-items: center;
}

.hero__eyebrow {
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-sprout-orange);
  margin-bottom: var(--spacing-16);
}

.hero__title {
  margin-bottom: var(--spacing-24);
}

.hero__title span {
  color: var(--color-sprout-orange);
}

.hero__text {
  font-size: var(--text-subheading);
  color: var(--color-graphite);
  line-height: 1.67;
  margin-bottom: var(--spacing-32);
  max-width: 480px;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-16);
  flex-wrap: wrap;
}

.hero__secondary {
  font-size: var(--text-body-sm);
  color: var(--color-graphite);
  margin-top: var(--spacing-16);
}

.hero__secondary a {
  color: var(--color-sprout-orange);
  font-weight: 500;
}

.hero__secondary a:hover {
  text-decoration: underline;
}

/* Hero image grid */
.hero__images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
}

.hero__image-card {
  position: relative;
  border-radius: var(--radius-images);
  overflow: hidden;
  aspect-ratio: 16/9;
}

.hero__image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero__image-label {
  position: absolute;
  bottom: var(--spacing-12);
  left: var(--spacing-12);
  background-color: rgba(252, 252, 250, 0.92);
  font-size: var(--text-caption);
  font-weight: 500;
  padding: var(--spacing-4) var(--spacing-12);
  border-radius: var(--radius-badges);
  color: var(--color-ink);
}

/* --- Cards Grid --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-24);
}

.card {
  background-color: var(--surface-card-surface);
  border: 1px solid rgba(31, 31, 31, 0.1);
  border-radius: var(--radius-cards);
  padding: var(--spacing-32);
  transition: border-color 0.2s;
}

.card:hover {
  border-color: var(--color-sprout-orange);
}

.card__icon {
  width: 40px;
  height: 40px;
  background-color: var(--color-sprout-orange);
  border-radius: var(--radius-buttons);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-20);
  color: #fff;
  font-size: 1.25rem;
}

.card__title {
  font-family: var(--font-sans);
  font-size: var(--text-heading-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-12);
}

.card__text {
  color: var(--color-graphite);
  line-height: 1.6;
}

/* --- Section Header --- */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-56);
}

.section-header h2 {
  margin-bottom: var(--spacing-16);
}

.section-header p {
  color: var(--color-graphite);
  font-size: var(--text-subheading);
  line-height: 1.67;
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-8);
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 500;
  padding: var(--spacing-12) var(--spacing-24);
  border-radius: var(--radius-buttons);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-sprout-orange);
  color: #fff;
}

.btn--primary:hover {
  background-color: #e63e00;
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-sprout-orange);
  border: 1.5px solid var(--color-sprout-orange);
}

.btn--ghost:hover {
  background-color: var(--color-sprout-orange);
  color: #fff;
}

/* --- Testimonials (hidden placeholder) --- */
.testimonials {
  display: none;
}

/* --- Footer CTA --- */
.footer-cta {
  background-color: var(--color-deep-teal);
  color: #fff;
  padding: var(--spacing-80) 0;
  text-align: center;
}

.footer-cta h2 {
  color: #fff;
  margin-bottom: var(--spacing-16);
}

.footer-cta p {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-subheading);
  margin: 0 auto var(--spacing-32);
  max-width: 500px;
}

.footer-cta .btn--primary {
  background-color: var(--color-sprout-orange);
  color: #fff;
}

.footer-cta .btn--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}

.footer-cta .btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

.footer-cta__note {
  margin-top: var(--spacing-24);
  font-size: var(--text-body-sm);
  color: rgba(255, 255, 255, 0.5);
}

/* --- Footer --- */
.footer {
  background-color: var(--color-canvas-cream);
  border-top: 1px solid rgba(31, 31, 31, 0.08);
  padding: var(--spacing-48) 0 var(--spacing-32);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--spacing-48);
  margin-bottom: var(--spacing-40);
}

.footer__brand p {
  color: var(--color-graphite);
  font-size: var(--text-body-sm);
  line-height: 1.6;
  margin-top: var(--spacing-16);
  max-width: 280px;
}

.footer__col-title {
  font-family: var(--font-sans);
  font-size: var(--text-caption);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-ink);
  margin-bottom: var(--spacing-16);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
}

.footer__links a {
  font-size: var(--text-body-sm);
  color: var(--color-graphite);
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--color-sprout-orange);
}

.footer__bottom {
  border-top: 1px solid rgba(31, 31, 31, 0.08);
  padding-top: var(--spacing-24);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__copy {
  font-size: var(--text-caption);
  color: var(--color-graphite);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-canvas-cream);
    flex-direction: column;
    padding: var(--spacing-24);
    border-bottom: 1px solid rgba(31, 31, 31, 0.08);
    gap: var(--spacing-16);
  }

  .nav__links.is-active {
    display: flex;
  }

  .nav__hamburger {
    display: block;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-40);
  }

  .hero__images {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
  }

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

  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-32);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-12);
    text-align: center;
  }
}

@media (max-width: 600px) {
  .hero__images {
    grid-template-columns: 1fr;
  }

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

/* --- request-demo --- */
.rd-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--spacing-32);
  align-items: start;
}

.rd-card {
  border: 1px solid rgba(31, 31, 31, 0.1);
  border-radius: var(--radius-cards);
  background: var(--surface-card-surface);
  padding: var(--spacing-32);
  min-width: 0;
}

.rd-field {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-16);
}

.rd-field label {
  font-size: var(--text-body-sm);
  font-weight: 600;
  color: var(--color-ink);
}

.rd-field input,
.rd-field select {
  padding: 10px 12px;
  border: 1px solid rgba(31, 31, 31, 0.12);
  border-radius: var(--radius-buttons);
  background: var(--color-canvas-cream);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  color: var(--color-ink);
}

.rd-field input:focus,
.rd-field select:focus {
  outline: 2px solid var(--color-sprout-orange);
  outline-offset: 1px;
  border-color: var(--color-sprout-orange);
}

.rd-hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

.rd-submit {
  width: 100%;
  margin-top: var(--spacing-8);
  font-size: var(--text-body);
  padding: var(--spacing-12) var(--spacing-24);
}

/* WhatsApp card */
.rd-cta-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.rd-cta-card p {
  max-width: 100%;
}

.rd-wa-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-8);
  font-size: var(--text-body);
  padding: 12px 24px;
  white-space: nowrap;
}

/* Toast */
.rd-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  padding: 12px 20px;
  border-radius: var(--radius-buttons);
  font-size: var(--text-body);
  font-weight: 500;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.rd-toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.rd-toast--success {
  background: var(--color-ink);
  color: var(--color-canvas-cream);
}

.rd-toast--error {
  background: var(--color-sprout-orange);
  color: #fff;
}

@media (max-width: 840px) {
  .rd-grid {
    grid-template-columns: 1fr;
  }

  .rd-cta-card {
    order: -1;
  }
}