/* 
 * Smart City Expo — Global Styles v2
 * Design system: editorial/premium, corporativo-evento
 * ============================================================
 */

/* ── Variables ── */
:root {
  --color-primary:    #8B1A2A;
  --color-secondary:  #E8574A;
  --color-tertiary:   #1C1B1B;
  --bg-surface:       #fcf9f8;
  --bg-surface-low:   #f6f3f2;
  --bg-surface-mid:   #eae7e7;
  --nav-height:       96px;
  --transition-base:  0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card:      0 4px 24px rgba(28,27,27,0.08);
  --shadow-elevated:  0 12px 48px rgba(28,27,27,0.14);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-surface);
  color: var(--color-tertiary);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .font-headline {
  font-family: 'Barlow Condensed', 'Space Grotesk', sans-serif;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
html { scroll-behavior: smooth; }

/* ── NAV / HEADER GLOBAL ── */
.site-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background: #fff;
  box-shadow: 0 1px 0 rgba(139,26,42,0.08), 0 4px 24px rgba(28,27,27,0.05);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  height: var(--nav-height);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

/* Logo */
.nav-logo-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-left: 1rem;
  flex-shrink: 0;
}
.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}
.nav-logo img {
  height: 62px;
  width: auto;
  object-fit: contain;
  display: block;
}
.nav-logo-divider {
  width: 1px;
  height: 40px;
  background: var(--bg-surface-mid);
  flex-shrink: 0;
}
.site-nav.scrolled {
  background: #fff;
  box-shadow: 0 1px 0 rgba(139,26,42,0.08), 0 4px 24px rgba(28,27,27,0.05);
}
.nav-brand {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  text-transform: uppercase;
  transition: opacity var(--transition-base);
}
.nav-brand:hover { opacity: 0.8; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav-links a {
  color: var(--color-primary);
  position: relative;
  transition: color var(--transition-base);
  padding-bottom: 2px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--color-secondary);
  transition: width var(--transition-base);
}
.nav-links a:hover { color: var(--color-secondary); }
.nav-links a:hover::after { width: 100%; }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > a { display: flex; align-items: center; gap: 0.2rem; cursor: pointer; }
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff;
  min-width: 240px;
  box-shadow: var(--shadow-elevated);
  border-top: 3px solid var(--color-secondary);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: 100;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu a {
  display: block;
  padding: 16px 24px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-tertiary);
  border-bottom: 1px solid var(--bg-surface-mid);
  transition: background var(--transition-base), color var(--transition-base), padding-left var(--transition-base);
}
.nav-dropdown-menu a:last-child { border-bottom: none; }
.nav-dropdown-menu a:hover {
  background: var(--bg-surface-low);
  color: var(--color-secondary);
  padding-left: 28px;
}

/* Medellín nav item — verde */
.nav-dropdown-menu a.nav-medellin {
  border-left: 3px solid #17b00b;
}
.nav-dropdown-menu a.nav-medellin:hover {
  color: #17b00b;
}

.nav-utils {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: 1.5rem;
}
.nav-utils span {
  color: var(--color-primary);
  cursor: pointer;
  transition: color var(--transition-base), transform var(--transition-base);
  font-size: 1.2rem;
}
.nav-utils span:hover { color: var(--color-secondary); transform: scale(1.1); }

/* ── FOOTER GLOBAL ── */
.site-footer {
  background: var(--color-primary);
  color: white;
  padding: 3.5rem 3rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}
.footer-logo-area { text-align: center; }
.footer-logo-mark {
  width: 56px; height: 56px;
  background: var(--color-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}
.footer-brand-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.5rem; font-weight: 900;
  letter-spacing: -0.02em; text-transform: uppercase;
  color: #fff; display: block; margin-bottom: 0.25rem;
}
.footer-tagline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.footer-divider {
  width: 100%; max-width: 480px;
  height: 1px; background: rgba(255,255,255,0.15);
}
.footer-links {
  display: flex; flex-wrap: wrap;
  justify-content: center; gap: 1.5rem;
  list-style: none; margin: 0; padding: 0;
}
.footer-links a {
  color: rgba(255,255,255,0.7);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  transition: color var(--transition-base);
}
.footer-links a:hover { color: #fff; }
.footer-social { display: flex; gap: 1rem; align-items: center; }
.footer-social span {
  color: rgba(255,255,255,0.7);
  cursor: pointer; font-size: 1.3rem;
  transition: color var(--transition-base), transform var(--transition-base);
}
.footer-social span:hover { color: var(--color-secondary); transform: translateY(-2px); }
.footer-hashtag {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.1rem; font-weight: 800;
  letter-spacing: 0.1em; color: var(--color-secondary);
}
.footer-bottom {
  width: 100%;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.25rem;
  text-align: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem; color: rgba(255,255,255,0.45);
}

/* ── CONTENT OFFSET ── */
.page-content { padding-top: var(--nav-height); }

/* ── ANIMATIONS & UTILITIES ── */
.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.45s; }

.hover-scale { transition: transform var(--transition-base), box-shadow var(--transition-base); }
.hover-scale:hover { transform: scale(1.025) translateY(-2px); box-shadow: var(--shadow-elevated); }
.hover-lift { transition: transform var(--transition-base), box-shadow var(--transition-base); }
.hover-lift:hover { transform: translateY(-6px); box-shadow: var(--shadow-elevated); }

.text-gradient {
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.underline-accent { position: relative; display: inline-block; }
.underline-accent::after {
  content: ''; position: absolute;
  bottom: -6px; left: 0; width: 60px; height: 4px;
  background: var(--color-secondary);
}

@keyframes pulse-dot {
  0%   { box-shadow: 0 0 0 0 rgba(232,87,74,0.6); }
  70%  { box-shadow: 0 0 0 10px rgba(232,87,74,0); }
  100% { box-shadow: 0 0 0 0 rgba(232,87,74,0); }
}
.map-dot {
  width: 12px; height: 12px; border-radius: 50%;
  position: absolute; cursor: pointer; transition: all 0.3s ease;
}
.map-dot:hover { transform: scale(1.6); z-index: 10; }
.map-dot.active-red   { background: #E8574A; animation: pulse-dot 2s infinite; }
.map-dot.active-blue  { background: #0ea5e9; }
.map-dot.active-green { background: #10b981; }
.map-dot.active-purple{ background: #8b5cf6; }
.map-dot.active-yellow{ background: #eab308; }
.map-dot.active-black { background: #1f2937; }

.map-tooltip {
  position: absolute; background: white;
  border: 2px solid var(--color-primary);
  padding: 15px; width: max-content; max-width: 250px;
  box-shadow: var(--shadow-card); pointer-events: none;
  z-index: 50; opacity: 0; transition: opacity 0.3s ease;
}
.map-dot:hover + .map-tooltip { opacity: 1; }

/* Buttons */
.btn-primary {
  display: inline-block;
  background: var(--color-secondary);
  color: white;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1rem; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.9rem 2.4rem;
  border: none; cursor: pointer;
  position: relative; overflow: hidden;
  transition: background var(--transition-base), transform var(--transition-base);
}
.btn-primary::before {
  content: ''; position: absolute; inset: 0;
  background: var(--color-primary);
  transform: translateX(-100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
  z-index: 0;
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-primary:hover::before { transform: translateX(0); }
.btn-primary span { position: relative; z-index: 1; }

.btn-outline {
  display: inline-block; background: transparent;
  color: var(--color-primary); border: 2px solid var(--color-primary);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1rem; font-weight: 800;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.85rem 2.2rem; cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}
.btn-outline:hover { background: var(--color-primary); color: white; transform: translateY(-2px); }

.section-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-secondary); display: block; margin-bottom: 0.75rem;
}

.stat-counter {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 5rem; font-weight: 900;
  color: var(--color-primary); line-height: 1;
}

/* ── HERO SECTION ── */
.hero-split {
  display: flex;
  min-height: clamp(500px, 70vh, 800px);
  overflow: hidden;
  background: var(--bg-surface);
}
.hero-left {
  flex: 0 0 55%;
  display: flex; flex-direction: column; justify-content: center;
  padding: 5rem 4rem 5rem 5rem;
  background: var(--bg-surface);
  position: relative; z-index: 2;
}
.hero-right {
  flex: 0 0 45%;
  position: relative; overflow: hidden;
  align-self: stretch; background: transparent;
}
.hero-right img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center center;
  transform: scale(1.8);
  transition: transform 6s ease;
  filter: brightness(0.65);
}
.hero-split:hover .hero-right img { transform: scale(1.84); }

.hero-tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: #ff0c00;
  margin-bottom: 1.25rem;
  display: flex; align-items: center; gap: 0.5rem;
  animation: fadeInUp 0.8s ease both;
}
.hero-tag::before {
  content: ''; display: inline-block;
  width: 28px; height: 2px; background: #ff0c00;
}

.hero-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(4rem, 8vw, 8rem);
  font-weight: 900; line-height: 0.88;
  letter-spacing: -0.02em; text-transform: uppercase;
  color: var(--color-tertiary);
  margin: 0 0 1.5rem;
  animation: fadeInUp 0.9s 0.1s ease both;
}
.hero-title em { font-style: normal; color: #ff0c00; }

.hero-subtitle {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem; font-weight: 500;
  color: rgba(28,27,27,0.6); max-width: 440px;
  line-height: 1.7; margin-bottom: 2.5rem;
  animation: fadeInUp 1s 0.2s ease both;
}
.hero-actions {
  display: flex; gap: 1rem; flex-wrap: wrap;
  animation: fadeInUp 1s 0.3s ease both;
}
.hero-badge {
  position: absolute; bottom: 2.5rem; right: -1.5rem;
  background: white; padding: 1rem 1.5rem;
  box-shadow: var(--shadow-elevated);
  border-left: 4px solid var(--color-secondary);
  z-index: 10;
  animation: slideInRight 1s 0.4s ease both;
}
.hero-badge strong {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 2rem; font-weight: 900;
  color: #ff0c00; display: block; line-height: 1;
}
.hero-badge span {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(28,27,27,0.5);
}

/* ── GALLERY ── */
.gallery-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
}
.gallery-item {
  aspect-ratio: 1; overflow: hidden;
  position: relative; background: var(--bg-surface-mid);
}
.gallery-item img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.6s ease, transform 0.5s ease;
}
.gallery-item:hover img { filter: grayscale(0%); transform: scale(1.06); }
.gallery-item-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(139,26,42,0.7) 0%, transparent 50%);
  opacity: 0; transition: opacity 0.4s ease;
  display: flex; align-items: flex-end; padding: 1rem;
}
.gallery-item:hover .gallery-item-overlay { opacity: 1; }
.gallery-item-overlay p {
  color: white; font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; margin: 0;
}

/* ── CARDS ── */
.expo-card {
  background: var(--bg-surface-low); padding: 2.5rem;
  transition: background var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  position: relative; overflow: hidden;
}
.expo-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 0; height: 3px; background: var(--color-secondary);
  transition: width 0.4s ease;
}
.expo-card:hover { background: white; transform: translateY(-4px); box-shadow: var(--shadow-elevated); }
.expo-card:hover::before { width: 100%; }

/* ── PAGE HERO ── */
.page-hero {
  width: 100%; height: clamp(280px, 40vh, 440px);
  position: relative; display: flex; align-items: flex-end; overflow: hidden;
}
.page-hero img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; transition: transform 0.8s ease;
}
.page-hero:hover img { transform: scale(1.03); }
.page-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(139,26,42,0.85) 0%, rgba(28,27,27,0.3) 60%, transparent 100%);
}
.page-hero-content {
  position: relative; z-index: 2;
  padding: 2.5rem 3rem; color: white;
}
.page-hero-content h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 900; letter-spacing: -0.02em;
  text-transform: uppercase; margin: 0 0 0.5rem; line-height: 0.9;
}
.page-hero-content p {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem; font-weight: 500;
  letter-spacing: 0.06em; color: rgba(255,255,255,0.8); margin: 0;
}

/* ── KEYFRAMES ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(32px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes shimmer {
  from { background-position: -200% center; }
  to   { background-position: 200% center; }
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero-split { flex-direction: column; }
  .hero-left  { flex: none; padding: 3rem 1.5rem; }
  .hero-right { flex: none; height: 320px; position: relative; }
  .hero-badge { right: 1rem; bottom: 1rem; }
  .site-nav   { padding: 0 1rem; }
  .nav-links  { gap: 1rem; font-size: 0.7rem; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer { padding: 2.5rem 1.5rem 1.5rem; }
}