/* ============================================================
   KAPRICA SERBIA — Design System
   Style: Paradigm.xyz inspired — minimalist, thin lines, mono
   ============================================================ */

/* --- Google Fonts --- */
/* --- Google Fonts loaded from HTML <link> for performance --- */

/* --- CSS Custom Properties --- */
:root {
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  /* Sizing */
  --max-width: 1200px;
  --header-height: 56px;
  --radius: 8px;
  --radius-sm: 4px;

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

/* --- Light Theme (default) --- */
[data-theme="light"] {
  --bg-primary: #FAFAFA;
  --bg-secondary: #F0F0F0;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F8F8F8;
  --bg-input: #F5F5F5;
  --text-primary: #0A0A0A;
  --text-secondary: #6B6B6B;
  --text-tertiary: #999999;
  --border: #E5E5E5;
  --border-strong: #D0D0D0;
  --accent: #00DC82;
  --accent-hover: #00C574;
  --accent-dim: rgba(0, 220, 130, 0.08);
  --accent-text: #00A060;
  --slider-track: #E5E5E5;
  --slider-fill: #0A0A0A;
  --slider-thumb: #0A0A0A;
  --shadow: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-lg: 0 4px 24px rgba(0,0,0,0.06);
  --overlay: rgba(250,250,250,0.8);
  --bg-surface: #F5F5F5;
  --text-muted: #AAAAAA;
  color-scheme: light;
}

/* --- Dark Theme --- */
[data-theme="dark"] {
  --bg-primary: #0A0A0A;
  --bg-secondary: #111111;
  --bg-card: #141414;
  --bg-card-hover: #1A1A1A;
  --bg-input: #1A1A1A;
  --text-primary: #E8E8E8;
  --text-secondary: #888888;
  --text-tertiary: #555555;
  --border: #222222;
  --border-strong: #333333;
  --accent: #00DC82;
  --accent-hover: #00FF96;
  --accent-dim: rgba(0, 220, 130, 0.06);
  --accent-text: #00DC82;
  --slider-track: #2A2A2A;
  --slider-fill: #E8E8E8;
  --slider-thumb: #E8E8E8;
  --shadow: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-lg: 0 4px 24px rgba(0,0,0,0.3);
  --overlay: rgba(10,10,10,0.8);
  --bg-surface: #181818;
  --text-muted: #666666;
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

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

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition);
}

section:last-of-type {
  border-bottom: none;
}

/* --- Typography --- */
.mono {
  font-family: var(--font-mono);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  transition: color var(--transition);
}

.section-title {
  font-family: var(--font-sans);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 600px;
  transition: color var(--transition);
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--overlay);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

.header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  transition: color var(--transition);
}

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

.header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Theme Toggle */
.header__btn {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.header__btn:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.header__wa-btn {
  display: inline-flex;
  align-items: center;
  color: #25D366;
  border-color: rgba(37, 211, 102, 0.3);
}

.header__wa-btn:hover {
  background: #25D366;
  color: #FFFFFF;
  border-color: #25D366;
}

/* Language Select */
.lang-select {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 28px 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: all var(--transition);
}

.lang-select:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.lang-select:focus {
  outline: none;
  border-color: var(--accent);
}

.lang-select option {
  background: var(--bg-card);
  color: var(--text-primary);
}

/* ============================================================
   HERO — Main Broadcast
   ============================================================ */
.broadcast-hero {
  padding-top: 60px;
  padding-bottom: 60px;
}

.broadcast-hero .section-header {
  margin-bottom: 32px;
}

.video-container {
  position: relative;
  width: 100%;
}

.video-poster {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  z-index: 2;
  filter: grayscale(100%) opacity(0.85);
  transition: filter 0.4s ease, opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
  border-radius: var(--radius);
}

.video-container:hover .video-poster {
  filter: grayscale(0%) opacity(1);
}

.video-container.is-active .video-poster,
.video-container.is-locked .video-poster {
  opacity: 0;
  pointer-events: none;
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  filter: grayscale(100%) opacity(0.8);
  transition: filter 0.4s ease, opacity 0.4s ease, border-color 0.3s ease, transform 0.3s ease;
  cursor: pointer;
}

.video-container:hover .video-wrapper,
.video-container.is-active .video-wrapper,
.video-container.is-locked .video-wrapper {
  filter: grayscale(0%) opacity(1);
  border-color: var(--accent);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  pointer-events: auto;
}

.video-wrapper--hero {
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
}



/* Live badge */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
  background: var(--accent-dim);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.live-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

/* ============================================================
   CITY CAROUSELS — Grouped by City (Beograd, Novi Pazar, Novi Sad, Niš)
   ============================================================ */
.city-carousels-container {
  display: flex;
  flex-direction: column;
  gap: 36px;
  margin-top: 32px;
}

.city-carousel-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.city-carousel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.city-carousel-title-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.city-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.city-count {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 4px;
}

.city-carousel-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.carousel-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  transition: all var(--transition);
  user-select: none;
}

.carousel-btn:hover {
  background: var(--accent);
  color: #0A0A0A;
  border-color: var(--accent);
}

.city-carousel-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding: 4px 2px;
}

.city-carousel-track::-webkit-scrollbar {
  display: none;
}

.city-carousel-track .city-card {
  flex: 0 0 calc(25% - 15px);
  min-width: 250px;
  scroll-snap-align: start;
}

@media (max-width: 1024px) {
  .city-carousel-track .city-card {
    flex: 0 0 calc(50% - 10px);
  }
}

@media (max-width: 600px) {
  .city-carousel-track .city-card {
    flex: 0 0 85%;
  }
}

.city-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  background: var(--bg-card);
}

.city-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.city-card .video-wrapper {
  border: none;
  border-radius: 0;
  border-bottom: 1px solid var(--border);
}

.city-card__info {
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.city-card__name {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.city-card__status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.city-card__status::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.city-card__details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.city-card__venue {
  font-size: 11px;
  color: var(--text-secondary);
}

/* ============================================================
   MAP — Interactive Map of Serbia
   ============================================================ */
.map-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  margin-top: 40px;
  transition: all var(--transition);
}

.map-container:hover {
  border-color: var(--border-strong);
}

.map-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.map-header__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-text);
  display: block;
  margin-bottom: 4px;
}

.map-header__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.map-legend {
  display: flex;
  align-items: center;
  gap: 20px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.legend-dot--active {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.legend-dot--planned {
  background: var(--text-muted);
  border: 1px solid var(--border);
}

.map-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.map-leaflet-wrapper {
  width: 100%;
  height: 480px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

#serbia-leaflet-map {
  width: 100%;
  height: 100%;
  background: var(--bg-surface);
  z-index: 1;
}

/* Custom Leaflet Marker Styling */
.custom-leaflet-marker {
  display: flex;
  align-items: center;
  gap: 8px;
}

.marker-pin-active {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-card);
  box-shadow: 0 0 12px var(--accent);
  position: relative;
  flex-shrink: 0;
}

.marker-pin-active::after {
  content: '';
  position: absolute;
  top: -6px;
  left: -6px;
  right: -6px;
  bottom: -6px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  animation: leaflet-pulse 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes leaflet-pulse {
  0% {
    transform: scale(0.5);
    opacity: 1;
  }
  100% {
    transform: scale(2.2);
    opacity: 0;
  }
}

.marker-label-active {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  box-shadow: var(--shadow);
}

.marker-pin-planned {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.marker-label-planned {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0.85;
}

/* Custom Leaflet Popup */
.leaflet-popup-content-wrapper {
  background: var(--bg-card) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-strong) !important;
  border-radius: 8px !important;
  box-shadow: var(--shadow) !important;
  font-family: var(--font-sans) !important;
  padding: 4px !important;
}

.leaflet-popup-tip {
  background: var(--bg-card) !important;
  border: 1px solid var(--border-strong) !important;
}

.leaflet-container a.leaflet-popup-close-button {
  color: var(--text-secondary) !important;
  padding: 6px 8px !important;
}

.leaflet-container a.leaflet-popup-close-button:hover {
  color: var(--accent-text) !important;
}

.leaflet-popup-content {
  margin: 10px 14px !important;
  line-height: 1.5 !important;
}

.popup-title {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.popup-address {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.popup-badge {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--accent-text);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 220, 130, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
  display: inline-block;
}

/* Sidebar Venue Cards */
.map-sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 480px;
  overflow-y: auto;
  padding-right: 6px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) var(--bg-card);
}

.map-sidebar::-webkit-scrollbar {
  width: 4px;
}

.map-sidebar::-webkit-scrollbar-track {
  background: var(--bg-card);
  border-radius: 4px;
}

.map-sidebar::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 4px;
}

.map-sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

.map-sidebar__header {
  position: sticky;
  top: 0;
  background: var(--bg-card);
  padding: 4px 0 8px 0;
  z-index: 2;
  margin-bottom: 2px;
}

.venue-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  transition: all var(--transition);
  cursor: pointer;
}

.venue-card:hover {
  border-color: var(--border-strong);
  transform: translateX(3px);
}

.venue-card.is-active-venue {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 16px rgba(0, 220, 130, 0.15);
  transform: translateX(4px);
}

.venue-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.venue-card__city {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-text);
  font-weight: 600;
}

.venue-card__badge {
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent-text);
  border: 1px solid rgba(0, 220, 130, 0.2);
}

.venue-card__badge--soon {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}

.venue-card__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.venue-card__address {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 10px;
}

.venue-card__footer {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}

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

@media (max-width: 800px) {
  .map-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* ============================================================
   PACKAGE — Indoor TV Broadcast Package
   ============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 36px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.feature-card__icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 220, 130, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent-text);
  transition: all var(--transition);
}

.feature-card:hover .feature-card__icon-box {
  background: var(--accent);
  color: #0A0A0A;
  border-color: var(--accent);
}

.feature-card__title {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 10px;
  transition: color var(--transition);
}

.feature-card__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  transition: color var(--transition);
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* ============================================================
   CALCULATORS — Shared Styles
   ============================================================ */
.calc-section {
  padding: 80px 0;
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}

.calc-card:hover {
  box-shadow: var(--shadow-lg);
}

.calc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.calc-header__label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.calc-header__badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-text);
}

/* Big Price Display */
.calc-price {
  text-align: center;
  padding: 32px 0 16px;
}

.calc-price__value {
  font-family: var(--font-mono);
  font-size: 56px;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--text-primary);
  transition: color var(--transition);
}

.calc-price__currency {
  color: var(--accent-text);
  font-size: 36px;
  font-weight: 400;
}

.calc-price__desc {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 12px;
  line-height: 1.5;
  transition: color var(--transition);
}

/* Slider Group */
.calc-slider-group {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  transition: border-color var(--transition);
}

.calc-slider-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.calc-slider-label__text {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.calc-slider-label__value {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  min-width: 60px;
  text-align: center;
  transition: all var(--transition);
}

/* Custom Range Slider */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 3px;
  border-radius: 2px;
  background: var(--slider-track);
  outline: none;
  cursor: pointer;
  transition: background var(--transition);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--slider-thumb);
  border: 2px solid var(--bg-card);
  box-shadow: 0 0 0 1px var(--border);
  cursor: pointer;
  transition: all var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 1px var(--accent);
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--slider-thumb);
  border: 2px solid var(--bg-card);
  box-shadow: 0 0 0 1px var(--border);
  cursor: pointer;
  transition: all var(--transition);
}

input[type="range"]:focus {
  outline: none;
}

/* Results Grid */
.calc-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 32px;
  transition: all var(--transition);
}

.calc-result-item {
  background: var(--bg-card);
  padding: 20px;
  text-align: center;
  transition: background var(--transition);
}

.calc-result-item:hover {
  background: var(--bg-card-hover);
}

.calc-result-item__label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  transition: color var(--transition);
}

.calc-result-item__value {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--transition);
}

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

.calc-result-item__unit {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-left: 2px;
}

/* Info Box */
.calc-info {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 20px;
  margin-top: 24px;
  background: var(--accent-dim);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-text);
  line-height: 1.5;
}

.calc-info::before {
  content: '⟡';
  flex-shrink: 0;
  font-size: 14px;
}

/* Plans Row */
.calc-plans {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.calc-plan {
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.calc-plan:hover {
  border-color: var(--accent);
}

.calc-plan__label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

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

.calc-plan__value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-plan__arrow {
  color: var(--text-tertiary);
  font-size: 12px;
}

/* CTA Button */
.calc-btn {
  display: block;
  width: 100%;
  padding: 16px;
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-align: center;
  color: var(--bg-primary);
  background: var(--text-primary);
  border: 1px solid var(--text-primary);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}

.calc-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0A0A0A;
  transform: translateY(-1px);
}

.calc-btn:active {
  transform: translateY(0);
}

/* Calc Footer */
.calc-footer {
  text-align: center;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* ============================================================
   TRAFFIC CALCULATOR — special items
   ============================================================ */
.traffic-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 24px;
  margin-top: 24px;
  background: var(--accent-dim);
  border-radius: var(--radius);
}

.traffic-bar {
  flex: 1;
  height: 8px;
  background: var(--slider-track);
  border-radius: 4px;
  overflow: hidden;
  max-width: 300px;
}

.traffic-bar__fill {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.5s ease;
}

.traffic-recommendation {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
}

.traffic-recommendation strong {
  color: var(--accent-text);
  font-weight: 600;
}

/* ============================================================
   CONTACT — Connection Request Form
   ============================================================ */
.contact-section {
  padding: 80px 0;
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 28px;
  margin-top: 36px;
  align-items: start;
}

.contact-methods-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

/* Email & WhatsApp Display Cards */
.contact-email-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  transition: all var(--transition);
}

.contact-email-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

.contact-whatsapp-card:hover {
  border-color: #25D366;
}

.contact-email-card__icon-box {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 220, 130, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-text);
  transition: all var(--transition);
}

.contact-email-card:hover .contact-email-card__icon-box {
  background: var(--accent);
  color: #0A0A0A;
  border-color: var(--accent);
  transform: scale(1.05);
}

.contact-email-card__content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-email-card__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
}

.contact-email-card__address {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent-text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid rgba(0, 220, 130, 0.2);
  border-radius: var(--radius);
  background: var(--accent-dim);
  transition: all var(--transition);
  word-break: break-all;
}

.contact-email-card__address:hover {
  background: var(--accent);
  color: #0A0A0A;
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 220, 130, 0.3);
}

.contact-whatsapp-card__icon-box {
  background: rgba(37, 211, 102, 0.08);
  border-color: rgba(37, 211, 102, 0.2);
  color: #25D366;
}

.contact-whatsapp-card:hover .contact-whatsapp-card__icon-box {
  background: #25D366;
  border-color: #25D366;
  color: #FFFFFF;
}

.contact-whatsapp-card__address {
  color: #25D366;
  border-color: rgba(37, 211, 102, 0.25);
  background: rgba(37, 211, 102, 0.08);
}

.contact-whatsapp-card__address:hover {
  background: #25D366;
  color: #FFFFFF;
  border-color: #25D366;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
}

.contact-email-card__address:hover .contact-email-card__send-icon {
  transform: translate(3px, -3px);
}

.contact-email-card__send-icon {
  flex-shrink: 0;
  transition: transform var(--transition);
}

.contact-email-card__hint {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 4px;
}

/* Form Card */
.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}

.contact-form-card:hover {
  box-shadow: var(--shadow-lg);
}

.contact-form {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-form__label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.contact-form__input {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  outline: none;
  transition: all var(--transition);
  width: 100%;
}

.contact-form__input::placeholder {
  color: var(--text-tertiary);
  font-size: 13px;
}

.contact-form__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.contact-form__input:hover:not(:focus) {
  border-color: var(--border-strong);
}

.contact-form__textarea {
  resize: vertical;
  min-height: 80px;
  max-height: 200px;
  line-height: 1.5;
}

.contact-form__submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-top: 4px;
}

.contact-form__note {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-tertiary);
  text-align: center;
  letter-spacing: 0.04em;
}

/* Contact form validation states */
.contact-form__input.is-invalid {
  border-color: #ff4444;
  box-shadow: 0 0 0 3px rgba(255, 68, 68, 0.1);
}

.contact-form__submit.is-sent {
  background: var(--accent);
  border-color: var(--accent);
  color: #0A0A0A;
  pointer-events: none;
}

@media (max-width: 800px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-email-card {
    position: static;
  }

  .contact-form__row {
    grid-template-columns: 1fr;
  }

  .contact-form-card {
    padding: 24px;
  }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  transition: border-color var(--transition);
}

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

.footer__copy {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  transition: color var(--transition);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__link {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--text-primary);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .cities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-results {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-title {
    font-size: 28px;
  }

  .calc-price__value {
    font-size: 48px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  section {
    padding: 48px 0;
  }

  .broadcast-hero {
    padding-top: 32px;
    padding-bottom: 32px;
  }

  .cities-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .calc-card {
    padding: 24px;
  }

  .calc-results {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-price__value {
    font-size: 40px;
  }

  .calc-price__currency {
    font-size: 28px;
  }

  .section-title {
    font-size: 24px;
  }

  .calc-plans {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .header__logo {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .cities-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .calc-results {
    grid-template-columns: 1fr;
  }

  .calc-price__value {
    font-size: 36px;
  }

  .header__actions {
    gap: 4px;
  }

  .header__btn {
    padding: 4px 8px;
    font-size: 12px;
  }

  .lang-select {
    font-size: 12px;
    padding: 4px 24px 4px 8px;
  }
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }
.fade-in:nth-child(4) { animation-delay: 0.4s; }

/* Smooth number transition */
.calc-result-item__value,
.calc-price__value {
  transition: color var(--transition);
}

/* Selection */
::selection {
  background: var(--accent);
  color: #0A0A0A;
}

/* ============================================================
   SCREEN-READER ONLY (for accessible H1)
   ============================================================ */
.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;
}

/* ============================================================
   PERFORMANCE — content-visibility for heavy sections
   ============================================================ */
.cities-section,
.package-section,
.calc-section {
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
}