/*
 * Smart Home Kits Conversion Landings - Shared Stylesheet
 * Strictly Zero Emojis. All styling uses pure CSS and inline SVG icons.
 */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --color-primary: #0284c7;
  --color-primary-dark: #0369a1;
  --color-primary-light: #e0f2fe;
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;
  --color-bg-light: #f8fafc;
  --color-surface: #ffffff;
  --color-text-main: #0f172a;
  --color-text-muted: #475569;
  --color-border: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --border-radius-base: 0.75rem;
}

/* Theme tokens per campaign line */
body[data-campaign-line="ahorro-energia"] {
  --color-primary: #059669;
  --color-primary-dark: #047857;
  --color-primary-light: #ecfdf5;
  --color-accent: #0284c7;
  --color-accent-hover: #0369a1;
}

body[data-campaign-line="confort-facil"] {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;
}

body[data-campaign-line="accesibilidad-adultos-mayores"] {
  --color-primary: #0f766e;
  --color-primary-dark: #115e59;
  --color-primary-light: #f0fdfa;
  --color-accent: #b45309;
  --color-accent-hover: #92400e;
  font-size: 1.125rem; /* 18px base font size for higher readability */
  line-height: 1.7;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg-light);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

/* Accessibility Focus States */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Typography Utilities */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--border-radius-base);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  text-align: center;
  line-height: 1.25;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

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

.btn-accent {
  background-color: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.btn-accent:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-text-main);
  border-color: var(--color-border);
}

.btn-outline:hover {
  background-color: #f1f5f9;
  border-color: #cbd5e1;
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.125rem;
  font-weight: 700;
}

/* Senior Accessibility Mode Enhancements */
body[data-campaign-line="accesibilidad-adultos-mayores"] .btn {
  padding: 1.125rem 2rem;
  font-size: 1.125rem;
  letter-spacing: 0.01em;
}

/* Header & Navigation */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
}

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

.logo-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-primary-dark);
}

/* Badge */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.875rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  margin-bottom: 1rem;
}

/* Hero Section */
.hero-section {
  padding: 4rem 0 3.5rem;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg-light) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-headline {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-text-main);
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--color-text-muted);
  max-width: 820px;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.hero-trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Card Grids */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
  margin-top: 2.5rem;
}

.cards-grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-base);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

/* Package Card Specifics */
.package-card {
  position: relative;
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-base);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.package-card.featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.package-badge-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
}

.package-price {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin: 0.75rem 0 0.25rem;
}

.package-subprice {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.package-features {
  list-style: none;
  margin: 1.25rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.9375rem;
}

.package-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

/* Step Sequence */
.steps-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.step-item {
  position: relative;
  background: var(--color-surface);
  padding: 1.75rem;
  border-radius: var(--border-radius-base);
  border: 1px solid var(--color-border);
}

.step-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

/* Accordion FAQ */
.faq-accordion {
  max-width: 840px;
  margin: 2.5rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-base);
  background-color: var(--color-surface);
  overflow: hidden;
}

.faq-trigger {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text-main);
  text-align: left;
  cursor: pointer;
}

.faq-content {
  display: none;
  padding: 0 1.5rem 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.faq-item.active .faq-content {
  display: block;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-icon {
  transition: transform 0.2s ease;
}

/* Lead Form Section */
.form-section-wrapper {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 2.5rem;
  max-width: 720px;
  margin: 2.5rem auto;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  text-align: left;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text-main);
  background-color: #ffffff;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-primary);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background-color: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background-color: var(--color-surface);
  border-radius: 1rem;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-xl);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-text-muted);
}

/* Sticky Mobile CTA */
.sticky-mobile-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 30;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-border);
  padding: 0.75rem 1.25rem;
  display: none;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 768px) {
  .sticky-mobile-cta {
    display: flex;
  }
  body {
    padding-bottom: 4.5rem;
  }
  .form-section-wrapper {
    padding: 1.5rem;
  }
}

/* Footer */
.footer {
  margin-top: auto;
  background-color: #0f172a;
  color: #94a3b8;
  padding: 3rem 0 2rem;
  font-size: 0.875rem;
  border-top: 1px solid #1e293b;
}

.footer a:hover {
  color: #ffffff;
}