/* ============================================
   Citas Trans Mexico — Main Stylesheet
   Design: Warm Modern & Discreet Social
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Primary palette — blue-violet / indigo */
  --color-primary: #5B4FC7;
  --color-primary-dark: #4A3FB0;
  --color-primary-light: #7B6FE0;
  --color-primary-bg: #EDE9FF;

  /* CTA — warm orange / coral */
  --color-cta: #F27A3A;
  --color-cta-hover: #E0651F;
  --color-cta-light: #FFF0E8;

  /* Neutrals */
  --color-bg: #F8F9FC;
  --color-bg-alt: #F0F1F6;
  --color-white: #FFFFFF;
  --color-text: #2D2D3A;
  --color-text-light: #5A5A72;
  --color-text-muted: #8E8EA0;
  --color-border: #E2E3EB;
  --color-shadow: rgba(91, 79, 199, 0.08);

  /* City accent overrides (applied via body class) */
  --city-accent: var(--color-primary);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --section-padding: 5rem 0;
  --container-max: 1140px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-sm: 8px;

  /* Transitions */
  --transition: 0.25s ease;
}

/* --- City-specific accent overrides --- */
body.page-cdmx {
  --city-accent: #4A3FB0;
}
body.page-guadalajara {
  --city-accent: #6B5FD6;
}
body.page-monterrey {
  --city-accent: #3D35A0;
}
body.page-puebla {
  --city-accent: #7B6FE0;
}
body.page-chat {
  --city-accent: #5B4FC7;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

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

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--color-cta);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(242, 122, 58, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-cta-hover);
  color: var(--color-white);
  box-shadow: 0 6px 20px rgba(242, 122, 58, 0.4);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 2px 20px var(--color-shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
}

.brand:hover {
  color: var(--color-primary-dark);
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* Desktop nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.main-nav a {
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-light);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
  background-color: var(--color-primary-bg);
}

.header-cta {
  margin-left: 1rem;
}

.header-cta .btn {
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.hamburger:hover {
  background-color: var(--color-bg-alt);
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 999;
  padding: 2rem 1.5rem;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  display: block;
  padding: 0.875rem 1rem;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--color-primary);
  background-color: var(--color-primary-bg);
}

.mobile-nav .btn {
  margin-top: 1rem;
  text-align: center;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  padding: 4rem 0 3.5rem;
  background: linear-gradient(135deg, var(--color-white) 0%, var(--color-primary-bg) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(91, 79, 199, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.hero h1 span {
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: 1.75rem;
  max-width: 480px;
  line-height: 1.6;
}

.hero-visual {
  position: relative;
  z-index: 1;
}

.hero-image-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, rgba(91, 79, 199, 0.12) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.hero-image-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.hero-image-placeholder .placeholder-icon {
  color: var(--color-primary-light);
  opacity: 0.3;
  font-size: 3rem;
}

/* City-specific hero accents */
body.page-cdmx .hero {
  background: linear-gradient(135deg, var(--color-white) 0%, #E8E5FF 100%);
}

body.page-guadalajara .hero {
  background: linear-gradient(135deg, var(--color-white) 0%, #EDE9FF 50%, #FFF5F0 100%);
}

body.page-monterrey .hero {
  background: linear-gradient(135deg, var(--color-white) 0%, #E5E3F5 100%);
}

body.page-puebla .hero {
  background: linear-gradient(135deg, var(--color-white) 0%, #F0EDFF 50%, #F8F7FF 100%);
}

body.page-chat .hero {
  background: linear-gradient(135deg, var(--color-white) 0%, #EBE8FF 100%);
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */
.section {
  padding: var(--section-padding);
}

.section-alt {
  background-color: var(--color-white);
}

.section-light {
  background-color: var(--color-bg);
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  max-width: 640px;
}

/* Content block — standard text section */
.content-block {
  max-width: 780px;
}

.content-block h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

.content-block p {
  margin-bottom: 1.25rem;
  color: var(--color-text-light);
  font-size: 1rem;
  line-height: 1.75;
}

.content-block p:last-child {
  margin-bottom: 0;
}

/* Two-column content */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.two-col .content-block {
  max-width: none;
}

/* ============================================
   CITY CARDS
   ============================================ */
.city-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.city-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 2px 12px var(--color-shadow);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  text-decoration: none;
  display: block;
}

.city-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(91, 79, 199, 0.12);
  border-color: var(--color-primary-light);
}

.city-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--color-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.4rem;
}

.city-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.city-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.city-card .card-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.city-card:hover .card-link {
  color: var(--color-primary-dark);
}

.card-link-arrow {
  transition: transform var(--transition);
}

.city-card:hover .card-link-arrow {
  transform: translateX(3px);
}

/* ============================================
   STEPS / HOW-TO
   ============================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.step-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 2px 12px var(--color-shadow);
  border: 1px solid var(--color-border);
  position: relative;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.step-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.step-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

/* ============================================
   FAQ ACCORDION
   ============================================ */
.faq-section {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  background: var(--color-white);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.faq-item:hover {
  box-shadow: 0 2px 12px var(--color-shadow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  gap: 1rem;
  transition: color var(--transition);
}

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

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  font-size: 0.85rem;
  color: var(--color-primary);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

/* ============================================
   FINAL CTA BAND
   ============================================ */
.cta-band {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-band h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  color: var(--color-white);
  margin-bottom: 1.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-band .btn-primary {
  background-color: var(--color-cta);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta-band .btn-primary:hover {
  background-color: var(--color-cta-hover);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}

/* ============================================
   EXPLORE CITIES SECTION (on city pages)
   ============================================ */
.explore-cities {
  padding: var(--section-padding);
  background-color: var(--color-bg);
}

/* ============================================
   LEGAL / POLICY PAGES
   ============================================ */
.page-banner {
  padding: 3rem 0 2.5rem;
  background: linear-gradient(135deg, var(--color-white) 0%, var(--color-primary-bg) 100%);
  border-bottom: 1px solid var(--color-border);
}

.page-banner h1 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  margin-bottom: 0.5rem;
}

.page-banner p {
  color: var(--color-text-light);
  font-size: 1rem;
}

.legal-content {
  padding: 3.5rem 0 5rem;
}

.legal-content .container {
  max-width: 780px;
}

.legal-content h2 {
  font-size: 1.35rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-text);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary-bg);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  margin-bottom: 1.15rem;
  color: var(--color-text-light);
  font-size: 0.98rem;
  line-height: 1.8;
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.legal-content a:hover {
  color: var(--color-primary-dark);
}

/* ============================================
   CHAT PAGE — speech bubble accents
   ============================================ */
body.page-chat .content-block {
  position: relative;
}

.chat-accent {
  display: inline-block;
  background: var(--color-primary-bg);
  border-radius: var(--radius) var(--radius) var(--radius) 4px;
  padding: 0.75rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  position: relative;
}

.chat-accent::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 16px;
  width: 12px;
  height: 12px;
  background: var(--color-primary-bg);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background-color: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: 3.5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.65;
  max-width: 320px;
}

.footer-heading {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.footer-bottom-links a:hover {
  color: var(--color-white);
}

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-visual {
    max-width: 480px;
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .main-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

/* Mobile */
@media (max-width: 640px) {
  :root {
    --section-padding: 3.5rem 0;
  }

  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero h1 {
    font-size: 1.65rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .section-header h2 {
    font-size: 1.4rem;
  }

  .content-block h2 {
    font-size: 1.3rem;
  }

  .cta-band {
    padding: 3rem 0;
  }

  .cta-band h2 {
    font-size: 1.2rem;
  }

  .page-banner {
    padding: 2rem 0;
  }

  .btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
  }
}

/* Small mobile */
@media (max-width: 380px) {
  .brand {
    font-size: 1rem;
  }

  .hero h1 {
    font-size: 1.45rem;
  }
}