:root {
  --bg-base: #050505;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(255, 255, 255, 0.2);
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.3);
  --font-main: 'Montserrat', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 2rem;
  transition: var(--transition);
}

.glass-card:hover {
  border-color: var(--border-glow);
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-glass);
  padding: 1rem 0;
}

.nav__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.logo-text {
  font-weight: 400;
  letter-spacing: 1px;
  font-size: 1rem;
}

.logo-text strong {
  font-weight: 700;
  color: var(--text-main);
}

.nav__badge span {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  border: 1px solid var(--border-glass);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  background: linear-gradient(135deg, #0a0a0c 0%, #050505 100%);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.hero__meta {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.badge-client, .badge-project {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: 30px;
}

.badge-client {
  background: var(--accent);
  color: #fff;
}

.badge-project {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
}

.hero__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

.text-accent {
  color: var(--accent);
}

.dot {
  color: var(--accent);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.btn-scroll {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0.8rem 1.5rem;
  border-radius: 30px;
  border: 1px solid var(--border-glass);
  background: var(--bg-card);
  transition: var(--transition);
}

.btn-scroll:hover {
  border-color: var(--accent);
  transform: translateY(2px);
}

/* Sections */
.section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--border-glass);
}

.section-header {
  margin-bottom: 3.5rem;
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.5px;
}

.section-desc {
  color: var(--text-muted);
  margin-top: 0.8rem;
  font-size: 1rem;
}

/* Diagnosis */
.diagnosis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.diagnosis-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.diagnosis-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.diagnosis-card--highlight {
  border-color: rgba(59, 130, 246, 0.3);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, var(--bg-card) 100%);
}

/* Cards Grid (Strategy) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.strategy-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.strategy-card__num {
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.05);
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
}

.strategy-card__icon {
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.strategy-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
}

.strategy-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Configurador / Calculadora */
.services-wrapper {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 2.5rem;
  align-items: start;
}

@media(max-width: 968px) {
  .services-wrapper {
    grid-template-columns: 1fr;
  }
}

.services-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 14px;
  padding: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
}

.service-card--selected {
  border-color: var(--accent);
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.06) 0%, var(--bg-card) 100%);
}

.service-card--fixed {
  cursor: default;
  border-color: rgba(255, 255, 255, 0.15);
}

.service-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.service-card__title {
  font-size: 1.05rem;
  font-weight: 600;
}

.service-card__badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-glass);
}

.service-card__badge--fixed {
  background: var(--accent);
  color: #fff;
  border: none;
}

.service-card__price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.service-card__text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Summary Panel Sticky */
.summary-panel {
  position: sticky;
  top: 6rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.summary-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 1rem;
}

.summary-header h3 {
  font-size: 1.1rem;
}

.summary-badge {
  font-size: 0.7rem;
  color: var(--accent);
  font-weight: 700;
  background: rgba(59, 130, 246, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
}

.summary-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.summary-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 180px;
  overflow-y: auto;
}

.summary-list li {
  font-size: 0.85rem;
  color: var(--text-main);
  padding-left: 1rem;
  position: relative;
}

.summary-list li::before {
  content: "•";
  color: var(--accent);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.summary-footer {
  border-top: 1px solid var(--border-glass);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.total-row span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.total-row strong {
  font-size: 1.25rem;
  color: var(--text-main);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 1rem 2rem;
  border-radius: 12px;
  transition: var(--transition);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

.btn-full {
  width: 100%;
}

.btn-primary--lg {
  font-size: 1rem;
  padding: 1.2rem 2.5rem;
}

/* Accordions */
.accordion-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 850px;
  margin: 0 auto;
}

.accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.accordion-item--hidden {
  display: none;
}

.accordion-header {
  padding: 1.2rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.accordion-header h4 {
  font-size: 1rem;
  font-weight: 600;
}

.accordion-pill {
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
  color: var(--text-muted);
  margin-left: auto;
  margin-right: 1rem;
}

.accordion-icon {
  font-size: 1.2rem;
  font-weight: 300;
  transition: transform 0.3s ease;
}

.accordion-item--active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding: 0 1.5rem;
}

.accordion-content p {
  padding-bottom: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.accordion-item--active .accordion-content {
  max-height: 200px;
}

/* Process Grid (Metodología) */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.process-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.process-step {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1.5px;
}

.process-card h3 {
  font-size: 1.1rem;
}

.process-card p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Timeline Wrapper */
.timeline-wrapper {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 2.5rem;
  align-items: start;
}

@media(max-width: 968px) {
  .timeline-wrapper {
    grid-template-columns: 1fr;
  }
}

.timeline-rows {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.timeline-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.2rem 1.5rem;
}

.timeline-row__time {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--accent);
  padding: 0.8rem;
  border-radius: 10px;
  text-align: center;
  min-width: 90px;
  font-weight: 700;
  font-size: 1.1rem;
}

.timeline-row__time span {
  display: block;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.timeline-row__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.timeline-row__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.timeline-summary {
  position: sticky;
  top: 6rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-summary h3 {
  font-size: 1.1rem;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 1rem;
}

.timeline-total-display {
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 1.5rem;
  border-radius: 12px;
  text-align: center;
}

.timeline-total-display strong {
  display: block;
  font-size: 2rem;
  color: var(--accent);
  letter-spacing: -1px;
}

.timeline-total-display span {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.timeline-breakdown h4 {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

#timeline-breakdown-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 150px;
  overflow-y: auto;
}

#timeline-breakdown-list li {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

#timeline-breakdown-list li strong {
  color: var(--text-main);
}

/* Financial Section */
.financial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media(max-width: 768px) {
  .financial-grid {
    grid-template-columns: 1fr;
  }
}

.financial-card h3 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.investment-display-box {
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

.investment-display-box .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block;
  margin-bottom: 0.4rem;
}

.investment-display-box strong {
  font-size: 1.8rem;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.bank-details h4 {
  font-size: 0.95rem;
  margin-bottom: 0.6rem;
}

.bank-details p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.financial-card-group {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.condition-card h4 {
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

.condition-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

/* Closing Section */
.section--closing {
  background: linear-gradient(135deg, #050505 0%, #0a0a0c 100%);
}

.closing-card {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: 4rem 2rem;
  border-color: rgba(59, 130, 246, 0.3);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.04) 0%, var(--bg-card) 100%);
}

.closing-card h2 {
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.closing-card p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-glass);
}

.footer__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__logo {
  font-size: 0.9rem;
  letter-spacing: 1px;
}

.footer__logo strong {
  color: var(--text-main);
}

.footer__socials {
  display: flex;
  gap: 1.2rem;
}

.footer__socials a {
  color: var(--text-muted);
  transition: var(--transition);
}

.footer__socials a:hover {
  color: var(--accent);
}