/* ====== BODY ====== */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: url('../images/bg.png') no-repeat center center fixed;
  background-size: cover;
  color: #fff;
  overflow-x: hidden;
}

/* ====== HEADER ====== */
header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  background-color: rgba(20, 20, 30, 0.85);
  padding: 15px 30px;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
}

.left-side {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-logo img {
  width: 40px;
  height: 40px;
}

.site-name {
  font-size: 20px;
  font-weight: bold;
}

.nav-buttons {
  display: flex;
  gap: 20px;
}

.nav-button {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-button:hover {
  background: linear-gradient(90deg, #ff1a1a, #ff4d4d, #cc0000, #ff1a1a);
  background-size: 300%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: redPulse 2.5s linear infinite;
}

.nav-button-pro {
  background: linear-gradient(90deg, #ff1a1a, #ff4d4d, #cc0000, #ff1a1a);
  background-size: 300%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: redPulse 2.5s linear infinite;
}

@keyframes redPulse {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.language-select {
  display: flex;
  align-items: center;
  gap: 10px;
}

#lang-selector-top {
  background-color: rgba(30,30,40,0.9);
  border: 1px solid #ff1a1a;
  color: #fff;
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 14px;
  cursor: pointer;
}

#lang-selector-top option {
  background-color: #20202a;
  color: #fff;
}

#lang-selector-top:focus {
  outline: none;
}

.center-copy {
  display: flex;
  justify-content: center;
  pointer-events: none;
}

.center-copy .copyright {
  font-size: 14px;
  color: #ccc;
  pointer-events: auto;
}

/* ====== MAIN WRAPPER ====== */
.main-wrapper {
  display: flex;
  justify-content: center;
  align-items: flex-start;  
  gap: 20px;
  padding: 40px 20px;
}

/* ====== QUAD SECTION ====== */
.quad-wrapper {
  width: 83.33vw;
  width: 100%;
  margin: 0 auto;
}

.quad-section {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.7777vh 1.5625vw;
}

.info-card {
  position: relative;
  background-size: cover;
  background-position: center;
  border-radius: 20px;
  overflow: hidden;
  height: 40vh;
  display: flex;
  align-items: flex-end;
  transition: transform 0.3s ease, filter 0.3s ease;
  box-shadow: 0 0 20px rgba(0, 0, 0, 1);
  filter: brightness(1.2) contrast(1.1);
}

.info-card:hover {
  transform: scale(1.02);
  filter: brightness(1.35) contrast(1.15);
}

/* ====== INFO ICON ====== */
.info-icon {
  position: absolute;
  bottom: 25px;
  right: 25px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-image: url('../logo/info.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  cursor: pointer;
  opacity: 0.9;
  z-index: 10;
  transition: all 0.25s ease;
}

.info-icon:hover {
  transform: scale(1.1);
}

/* ====== OVERLAY & CONTENT ====== */
.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.card-content {
  position: relative;
  z-index: 2;
  padding: 25px;
  color: #fff;
}

.card-content h3 {
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.card-content p {
  font-size: 1rem;
  opacity: 0.9;
  padding-right: 50px;
}

.info-card-link {
  text-decoration: none;
  color: inherit;
}

/* ====== PRO TITLE ====== */
.info-card.pro h3 {
  background: linear-gradient(90deg, #ff1a1a, #ff4d4d, #cc0000, #ff1a1a);
  background-size: 300%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: redPulse 2.5s linear infinite;
}

/* ====== ADAPTIVE ====== */
@media (max-width: 1600px) {
  .quad-section { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1200px) {
  .quad-section { grid-template-columns: repeat(2, 1fr); }
}

/* ===== МОБІЛЬНА ОПТИМІЗАЦІЯ ===== */
@media (max-width: 830px) {
  html, body { width: 100%; max-width: 100%; overflow-x: hidden; }
  body {
    padding-bottom: 75px !important;
    box-sizing: border-box;
    display: block !important;
    text-align: left !important;
  }

  .main-wrapper {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 14px 40px 14px !important;
    margin: 0 auto !important;
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 16px !important;
  }

  .quad-wrapper {
    width: 100% !important;
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 16px !important;
  }

  .quad-section {
    display: flex !important;
    flex-direction: column !important;
    grid-template-columns: 1fr !important;
    gap: 16px !important;
    padding: 0 !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Completely hide desktop bilateral ad sidebars on mobile */
  .sidebar.left-ads,
  .sidebar.right-ads {
    display: none !important;
  }

  .info-card-link {
    width: 100%;
    max-width: 100%;
    display: block;
    box-sizing: border-box;
    text-decoration: none;
  }

  .info-card {
    width: 100%;
    min-height: 200px;
    height: auto;
    margin-bottom: 0;
    padding: 20px;
    box-sizing: border-box;
    border-radius: 16px;
  }

  .info-card img {
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
  }

  /* Ховаємо зайві елементи */
  .center-copy, .language-select, .site-logo { display: none !important; }

  

  

  header {
    width: 100% !important;
    max-width: 100% !important;
    min-height: 52px !important;
    padding: 8px 10px !important;
    background-color: rgba(15, 17, 26, 0.95) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 1000 !important;
  }

  .left-side {
    width: 100% !important;
    max-width: 100% !important;
    display: flex !important;
    align-items: center !important;
    gap: 0 !important;
    overflow: hidden !important;
  }

  .nav-buttons {
    display: flex !important;
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    white-space: nowrap !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
    gap: 8px !important;
    padding: 2px 4px !important;
    box-sizing: border-box !important;
  }

  .nav-buttons::-webkit-scrollbar {
    display: none;
  }

  .nav-button {
    flex: 0 0 auto !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 7px 12px !important;
    border-radius: 9px !important;
    background: rgba(255, 26, 26, 0.08) !important;
    border: 1px solid rgba(255, 26, 26, 0.22) !important;
    font-size: 13px !important;
    color: #fff !important;
    white-space: nowrap !important;
    text-decoration: none !important;
    box-sizing: border-box !important;
    touch-action: manipulation !important;
  }

  .nav-button:hover, .nav-button:active {
    background: rgba(255, 26, 26, 0.22) !important;
    border-color: #ff1a1a !important;
  }

}

.bottom-panel {
  display: none; /* ❌ ховаємо на десктопі */
  width: 100%; max-width: 100%;
  min-height: 60px;
  background-color: rgba(20, 20, 30, 0.95);
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: 1000;
  padding: 0 10px;
  color: #fff;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.5);
  font-size: clamp(12px, 3vw, 16px);

  /* display: flex; <-- забираємо тут */
  justify-content: center;
  align-items: center;
}

.bottom-panel .panel-content {
  display: flex;
  justify-content: center;     
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  gap: 10px;
}

.bottom-panel .panel-content .center-copy,
.bottom-panel .panel-content .language-select {
  display: flex;
  align-items: center;
  color: #fff;
}

.bottom-panel .language-select select {
  background-color: rgba(30,30,40,0.9);
  border: 1px solid #ff1a1a;
  color: #fff;
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.bottom-panel .language-select select:hover {
  background-color: rgba(50,50,60,0.95);
}

.bottom-panel .language-select select:focus {
  outline: none;
}

.bottom-panel .language-select select option {
  background-color: #20202a;
  color: #fff;
}

/* Мобільна версія */
@media (max-width: 830px) {
  .bottom-panel {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 8px 14px;
    min-height: 56px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    left: 0;
    right: 0;
  }

  .bottom-panel .panel-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 100%;
    gap: 12px;
    padding: 0 4px;
    box-sizing: border-box;
  }
}