/* ==========================================================================
   RESERVAS MACHUPICCHU - DESIGN SYSTEM & CORE STYLES
   Colores de marca:
   --primary: #1e6964 (Verde Andino Profundo)
   --accent: #f69c0f (Dorado Inti / Ámbar)
   --text: #444444 (Gris Carbón)
   --dark: #000000 (Negro Profundo)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css');

:root {
  /* Brand Colors */
  --primary: #1e6964;
  --primary-dark: #144945;
  --primary-light: #28847e;
  --primary-subtle: #e8f3f2;
  --accent: #f69c0f;
  --accent-hover: #e08906;
  --accent-light: #fff5e6;
  
  /* Neutrals */
  --dark: #000000;
  --text-main: #444444;
  --text-muted: #6c757d;
  --text-light: #ffffff;
  --bg-body: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  /* Semantic */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(30, 105, 100, 0.12), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 35px -5px rgba(30, 105, 100, 0.18), 0 8px 10px -6px rgba(0, 0, 0, 0.06);
  --shadow-accent: 0 10px 20px -3px rgba(246, 156, 15, 0.35);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-body);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--dark);
  font-weight: 700;
  line-height: 1.25;
}

h1 { font-size: clamp(2rem, 4vw + 1rem, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 2.5vw + 0.5rem, 2.35rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.25rem, 1.5vw + 0.25rem, 1.65rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

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

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

/* Layout */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.container-narrow {
  max-width: 960px;
}

.section-padding {
  padding: 5rem 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 3.5rem 0;
  }
}

/* Header & Navigation (Ultra-Clean & Modern) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
}

.top-bar {
  background: #0f3936;
  color: #d1eae8;
  font-size: 0.8rem;
  padding: 0.35rem 0;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  white-space: nowrap;
}

.top-bar a {
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.2s ease;
}

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

.nav-bar {
  padding: 0.65rem 0;
}

.nav-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  min-height: 68px;
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo img {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.88rem;
  color: #2d3748;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: var(--primary-subtle);
}

.nav-link .caret {
  font-size: 0.65rem;
  opacity: 0.7;
  transition: transform 0.2s ease;
}

.nav-item:hover .nav-link .caret {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--bg-card);
  min-width: 250px;
  padding: 0.5rem 0;
  border-radius: var(--radius-md);
  box-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.15), 0 5px 15px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
}

.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 24px;
  width: 12px;
  height: 12px;
  background: #ffffff;
  transform: rotate(45deg);
  border-top: 1px solid var(--border-color);
  border-left: 1px solid var(--border-color);
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 1.15rem;
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.dropdown-item:hover {
  background: var(--primary-subtle);
  color: var(--primary);
  padding-left: 1.35rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.65rem;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-accent {
  background: var(--accent);
  color: #000000;
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
  background: var(--accent-hover);
  color: #000000;
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -4px rgba(246, 156, 15, 0.45);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-outline-white {
  border-color: #ffffff;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
}

.btn-outline-white:hover {
  background: #ffffff;
  color: var(--dark);
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 2.2rem;
  font-size: 1.05rem;
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background: var(--primary-subtle);
  color: var(--primary);
}

.badge-accent {
  background: var(--accent-light);
  color: #b46b00;
}

.badge-outline {
  border: 1px solid currentColor;
  background: transparent;
}

/* Cards & UI Elements */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  padding: 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(30, 105, 100, 0.3);
}

.card-accent-border {
  border-top: 4px solid var(--accent);
}

.card-primary-border {
  border-top: 4px solid var(--primary);
}

/* Hero Section */
.hero-wrapper {
  position: relative;
  background: linear-gradient(135deg, rgba(20, 73, 69, 0.92) 0%, rgba(30, 105, 100, 0.85) 100%), url('../img/hero-machupicchu.webp') center/cover no-repeat;
  color: #ffffff;
  padding: 5.5rem 0 6.5rem;
  overflow: hidden;
}

.hero-wrapper::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40px;
  background: linear-gradient(to top, var(--bg-body), transparent);
}

.hero-content {
  max-width: 780px;
}

.hero-title {
  color: #ffffff;
  margin-bottom: 1.25rem;
  font-weight: 800;
}

.hero-title .highlight {
  color: var(--accent);
  position: relative;
  display: inline-block;
}

.hero-description {
  font-size: 1.15rem;
  color: #e2f1f0;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-item h3 {
  color: var(--accent);
  font-size: 1.85rem;
  margin-bottom: 0.15rem;
}

.stat-item p {
  color: #d1eae8;
  font-size: 0.85rem;
  margin: 0;
}

/* Quick Country Selector Bar */
.country-bar {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.75rem;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  margin-top: -2.5rem;
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.country-bar-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--dark);
}

.country-flags-list {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.country-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition-fast);
}

.country-pill:hover, .country-pill.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem;
}

.section-header .section-subtitle {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: inline-block;
}

.section-header .section-title {
  margin-bottom: 1rem;
}

.section-header .section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

/* Tour Card */
.tour-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.tour-card-image {
  position: relative;
  height: 220px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  overflow: hidden;
  margin: -1.75rem -1.75rem 1.25rem;
}

.tour-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.tour-card:hover .tour-card-image img {
  transform: scale(1.06);
}

.tour-card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 2;
}

.tour-card-body {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.tour-card-title {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  color: var(--dark);
}

.tour-features-list {
  list-style: none;
  margin: 1rem 0 1.5rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tour-features-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-main);
}

.tour-features-list li svg,
.tour-features-list li i {
  color: var(--primary);
  flex-shrink: 0;
}

.tour-card-footer {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tour-price-box {
  display: flex;
  flex-direction: column;
}

.tour-price-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.tour-price-val {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: none;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--primary);
  color: #ffffff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  padding: 0 1.5rem;
  color: var(--text-main);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  padding-bottom: 1.25rem;
}

/* Currency & Budget Converter Box */
.calculator-box {
  background: linear-gradient(135deg, var(--bg-card) 0%, #f1f8f7 100%);
  border: 2px solid var(--primary-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.form-select, .form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--dark);
  outline: none;
  transition: var(--transition-fast);
}

.form-select:focus, .form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 105, 100, 0.15);
}

/* Floating WhatsApp & Contact */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  background: #25d366;
  color: #ffffff;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  color: #ffffff;
  box-shadow: 0 15px 30px rgba(37, 211, 102, 0.55);
}

/* Footer */
.site-footer {
  background: #0d2826;
  color: #cbd5e1;
  padding: 5rem 0 2rem;
  border-top: 4px solid var(--accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--accent);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 0.25rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: #64748b;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--dark);
}

@media (max-width: 1080px) {
  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .nav-menu {
    position: fixed;
    top: 68px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 68px);
    background: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.5rem;
    overflow-y: auto;
    transition: left 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-xl);
    z-index: 999;
  }

  .nav-menu.open {
    left: 0;
  }
  
  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    display: none;
  }

  .nav-item.open .nav-dropdown {
    display: block;
  }
}