:root {
  --burgundy: #5b1422;
  --burgundy-dark: #2f0e15;
  --vine: #56724b;
  --cream: #f7ebd8;
  --cream-strong: #efe0bc;
  --white: #ffffff;
  --text: #2e221d;
  --shadow: 0 18px 45px rgba(47, 14, 21, 0.12);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Georgia", "Times New Roman", serif;
  color: var(--text);
  background: linear-gradient(135deg, #fdf8ee 0%, #f4e6ce 100%);
}

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

.page-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.2rem 0 2.5rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.2rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(91, 20, 34, 0.12);
  border-radius: 999px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  margin-bottom: 1.4rem;
}

.brand {
  font-weight: 700;
  color: var(--burgundy);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.topnav a {
  text-decoration: none;
  color: var(--text);
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.topnav a:hover,
.topnav a:focus-visible {
  background: var(--burgundy);
  color: var(--white);
  outline: none;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 1.4rem;
  padding: 2rem;
  background: linear-gradient(120deg, rgba(91, 20, 34, 0.94) 0%, rgba(86, 114, 75, 0.95) 100%);
  border-radius: 32px;
  color: var(--cream);
  box-shadow: var(--shadow);
  margin-bottom: 1.4rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin: 0.2rem 0 0.3rem;
}

.hero h2 {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  margin: 0 0 0.8rem;
  color: var(--cream-strong);
}

.hero p {
  line-height: 1.7;
  margin: 0 0 1rem;
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--cream-strong);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1rem;
}

.button {
  display: inline-block;
  padding: 0.8rem 1.1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.button.primary {
  background: var(--cream);
  color: var(--burgundy-dark);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-card {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 24px;
  padding: 1.2rem;
  align-self: center;
}

.hero-card h3 {
  margin-top: 0;
  margin-bottom: 0.8rem;
}

.hero-card ul {
  margin: 0;
  padding-left: 1rem;
  line-height: 1.8;
}

.section {
  padding: 1.4rem 0 0.4rem;
}

.section-heading {
  margin-bottom: 1rem;
}

.section-heading .eyebrow {
  color: var(--vine);
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.info-card,
.module-card,
.timeline-item,
.calculator-card,
.assistant-panel {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(91, 20, 34, 0.1);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.info-card,
.module-card {
  padding: 1.2rem;
}

.icon {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.info-card h3,
.module-card h3,
.timeline-item h3 {
  margin: 0.2rem 0 0.45rem;
  color: var(--burgundy);
}

.info-card p,
.module-card p,
.timeline-item p {
  margin: 0;
  line-height: 1.6;
  color: #4b3d37;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.timeline-item {
  padding: 1rem;
  position: relative;
}

.timeline-item span {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--vine);
  letter-spacing: 0.14em;
}

.calculator-card {
  padding: 1.2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

form {
  display: grid;
  gap: 0.8rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-weight: 600;
  color: var(--burgundy-dark);
}

input {
  border: 1px solid rgba(91, 20, 34, 0.16);
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
  font: inherit;
  background: var(--cream);
}

button {
  border: none;
  border-radius: 999px;
  padding: 0.8rem 1rem;
  font: inherit;
  font-weight: 700;
  background: var(--burgundy);
  color: var(--white);
  cursor: pointer;
}

.result-box {
  background: linear-gradient(135deg, rgba(91, 20, 34, 0.08), rgba(86, 114, 75, 0.12));
  border-radius: 18px;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  text-align: center;
  color: var(--burgundy-dark);
}

.assistant-panel {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
  padding: 1.2rem;
}

.assistant-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.assistant-preview {
  background: linear-gradient(135deg, rgba(91, 20, 34, 0.08), rgba(86, 114, 75, 0.12));
  border-radius: 18px;
  padding: 1rem;
}

.assistant-preview h3 {
  margin-top: 0;
  color: var(--burgundy);
}

.assistant-preview ul {
  margin: 0;
  padding-left: 1rem;
  line-height: 1.8;
}

.footer {
  text-align: center;
  padding: 1.8rem 0 0.4rem;
  color: #5b4a41;
  font-weight: 600;
}

/* Ajustes responsive */
@media (max-width: 900px) {
  .hero,
  .assistant-panel,
  .calculator-card {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 1rem, 1180px);
  }

  .topbar {
    border-radius: 24px;
    flex-direction: column;
    gap: 0.7rem;
  }

  .hero,
  .info-card,
  .module-card,
  .timeline-item,
  .calculator-card,
  .assistant-panel {
    padding: 1rem;
  }

  .card-grid,
  .timeline,
  .assistant-form {
    grid-template-columns: 1fr;
  }
}