:root {
  --primary: #70fff9;
  --primary-dark: #4ae8e3;
  --ocean-deep: #0a1628;
  --ocean-mid: #0d2137;
  --ocean-light: #133052;
  --ocean-glow: rgba(112, 255, 249, 0.15);
  --white: #e8f4f8;
  --text-secondary: #8bb8cc;
  --section-bg: rgba(10, 22, 40, 0.85);
  --card-bg: linear-gradient(135deg, rgba(13, 33, 55, 0.9), rgba(19, 48, 82, 0.7));
  --nav-bg: rgba(10, 22, 40, 0.5);
  --nav-scrolled: rgba(10, 22, 40, 0.9);
}

body.v-day-mode {
  --primary: #007bb5;
  --primary-dark: #005a87;
  --ocean-deep: #e8f4f8;
  --ocean-mid: #d1e8f0;
  --ocean-light: #b0d4e3;
  --ocean-glow: rgba(0, 123, 181, 0.15);
  --white: #0a1628;
  --text-secondary: #3a506b;
  --section-bg: rgba(232, 244, 248, 0.85);
  --card-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(232, 244, 248, 0.7));
  --nav-bg: rgba(232, 244, 248, 0.7);
  --nav-scrolled: rgba(232, 244, 248, 0.95);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--ocean-deep);
  color: var(--white);
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* ФОН */
.hero-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('bg.png');
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--nav-bg) 0%, transparent 40%, var(--nav-scrolled) 100%);
}

/* НАВИГАЦИЯ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s ease;
  backdrop-filter: blur(10px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--ocean-glow);
}

nav.scrolled {
  background: var(--nav-scrolled);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  text-shadow: 0 0 20px var(--ocean-glow);
  letter-spacing: 2px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-links a:hover::after {
  width: 100%;
}

/* КНОПКА ТЕМЫ И МЕНЮ */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.v-mode-btn {
  background: var(--ocean-glow);
  border: 1px solid var(--primary);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
  box-shadow: 0 0 10px transparent;
}

.v-mode-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--ocean-glow);
  background: rgba(112, 255, 249, 0.2);
}

body.v-day-mode .v-mode-btn {
  border-color: var(--primary-dark);
}

body.v-day-mode .v-mode-btn:hover {
  background: rgba(0, 123, 181, 0.2);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 5px;
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background: var(--primary);
  transition: 0.3s;
}

/* ГЛАВНЫЙ ЭКРАН */
.hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
}

.hero-logo-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease;
}

.custom-logo {
  max-width: 500px;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 20px var(--ocean-glow));
  animation: fadeInUp 1s ease;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  animation: fadeInUp 1.2s ease;
  text-shadow: 0 2px 10px rgba(88, 167, 219, 0.801);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 1.4s ease;
}

.btn-primary {
  padding: 0.9rem 2.5rem;
  background: var(--primary);
  color: var(--ocean-deep);
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px var(--ocean-glow);
}

.btn-secondary {
  padding: 0.9rem 2.5rem;
  background: var(--ocean-glow);
  color: var(--primary);
  border: 2px solid var(--primary);
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  backdrop-filter: blur(5px);
}

.btn-secondary:hover {
  background: var(--ocean-glow);
  transform: translateY(-3px);
}

/* БЛОК С IP */
.server-ip {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: var(--ocean-glow);
  border: 1px solid var(--primary);
  border-radius: 12px;
  padding: 0.8rem 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  animation: fadeInUp 1.6s ease;
  backdrop-filter: blur(10px);
}

.server-ip:hover {
  transform: scale(1.02);
}

.server-ip code {
  font-size: 1.1rem;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 1px;
}

.copy-icon {
  width: 20px;
  height: 20px;
  fill: var(--primary);
  opacity: 0.7;
}

.copy-tooltip {
  font-size: 0.8rem;
  color: var(--primary);
  opacity: 0;
  transition: opacity 0.3s;
}

.server-ip.copied .copy-tooltip {
  opacity: 1;
}

/* ПУЗЫРЬКИ */
.bubbles-container {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: hidden;
}

.bubble {
  position: absolute;
  bottom: -20px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--primary), transparent);
  border: 1px solid var(--ocean-glow);
  animation: bubbleRise linear infinite;
  opacity: 0.2;
}

@keyframes bubbleRise {
  0% {
    transform: translateY(0) scale(1);
    opacity: 0.4;
  }

  100% {
    transform: translateY(-100vh) scale(0.5);
    opacity: 0;
  }
}

/* ОСНОВНЫЕ СЕКЦИИ */
section {
  position: relative;
  z-index: 2;
  padding: 5rem 2rem;
}

.glass-section {
  background: var(--section-bg);
  backdrop-filter: blur(5px);
  transition: background-color 0.4s ease;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--white);
}

.section-title span {
  color: var(--primary);
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ИСПРАВЛЕННАЯ СЕТКА КАРТОЧКЕЙ ОСОБЕННОСТЕЙ (2х2 Строго по центру) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--ocean-glow);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(5px);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1), 0 0 30px var(--ocean-glow);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--ocean-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  font-size: 1.8rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--white);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

/* О СЕРВЕРЕ И СЕТКА КЛИКАБЕЛЬНЫХ МОДОВ (ПО ЦЕНТРУ 2х2) */
.about-content {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.about-text p span {
  color: var(--primary);
  font-weight: 700;
}

.about-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.stat-card {
  flex: 1 1 180px;
  max-width: 210px;
  background: var(--card-bg);
  border: 1px solid var(--ocean-glow);
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
  text-decoration: none;
  color: var(--white);
  display: block;
}

.stat-card:hover {
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--ocean-glow);
  transform: translateY(-5px);
}

.mod-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 0.3rem;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  line-height: 1.4;
}

/* ПРАВИЛА И СПИСКИ ПРАВИЛ */
.rules-container {
  max-width: 800px;
  margin: 0 auto;
}

.rules-preamble {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--ocean-glow);
  border-radius: 16px;
  backdrop-filter: blur(5px);
  font-size: 0.95rem;
  line-height: 1.6;
}

.rules-preamble strong {
  color: var(--primary);
  font-size: 1.2rem;
  display: block;
  margin-bottom: 0.5rem;
  letter-spacing: 1px;
}

.rule-item {
  background: var(--card-bg);
  border: 1px solid var(--ocean-glow);
  border-radius: 16px;
  margin-bottom: 1rem;
  overflow: hidden;
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
}

.rule-item:hover {
  border-color: var(--primary);
}

.rule-header {
  padding: 1.2rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.rule-header h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.rule-number {
  background: var(--ocean-glow);
  color: var(--primary);
  width: 38px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
}

.rule-toggle {
  width: 24px;
  height: 24px;
  fill: var(--primary);
  transition: transform 0.3s ease;
  opacity: 0.6;
}

.rule-item.active .rule-toggle {
  transform: rotate(180deg);
}

.rule-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.rule-content-inner {
  padding: 0 1.5rem 1.2rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.rule-item.active .rule-content {
  max-height: 1000px;
}

.rule-list {
  list-style: none;
  padding-left: 0;
}

.rule-list li {
  margin-bottom: 0.8rem;
  padding-left: 1.8rem;
  text-indent: -1.8rem;
}

.rule-list b {
  color: var(--primary);
  margin-right: 0.4rem;
}

/* КАК НАЧАТЬ ИГРАТЬ */
.join-steps {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.join-step {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--ocean-glow);
  border-radius: 16px;
  padding: 1.5rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
}

.join-step:hover {
  border-color: var(--primary);
  transform: translateX(5px);
}

.step-number {
  min-width: 50px;
  height: 50px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
}

.step-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--white);
}

.step-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* ПОДВАЛ С ЛОГОТИПОМ */
footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--ocean-glow);
  padding: 3rem 2rem;
  text-align: center;
  background: var(--nav-scrolled);
  backdrop-filter: blur(10px);
}

.footer-logo-img {
  max-width: 250px;
  height: auto;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 0 15px var(--ocean-glow));
}

.footer-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

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

/* ВОЛНЫ */
.wave-divider {
  position: relative;
  z-index: 2;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.wave-divider svg {
  width: 100%;
  height: 80px;
}

/* АНИМАЦИИ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--nav-scrolled);
    padding: 1.5rem 2rem;
    gap: 1rem;
    border-bottom: 1px solid var(--ocean-glow);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  /* Делаем сетку особенностей в 1 столбик на телефонах */
  .features-grid {
    grid-template-columns: 1fr;
  }
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--ocean-deep);
}

::-webkit-scrollbar-thumb {
  background: var(--ocean-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* Делаем все ссылки внутри карточек модов красивыми */
.stat-card {
    text-decoration: none;
    /* Убираем подчеркивание */
    color: var(--white);
    /* Основной цвет текста */
    transition: all 0.3s ease;
}

/* При наведении меняем цвет текста на яркий голубой */
.stat-card:hover .stat-label {
    color: #70fff9;
    /* Твой фирменный голубой цвет */
}

/* Если нужно покрасить сам текст в ссылках, которые просто в тексте (например, в правилах) */
a {
    color: #70fff9;
    /* Яркий голубой для всех ссылок на сайте */
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #ffffff;
    /* Белый при наведении */
    text-decoration: underline;
}