/* ===== ДИЗАЙН-СИСТЕМА: СВЕТЛЫЕ ТОНА ===== */

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

:root {
  /* Основные цвета (светлая тема) */
  --primary: #0088cc;
  --primary-dark: #006699;
  --primary-light: #00c6ff;
  --secondary: #4CAF50;
  --accent: #FF9800;
  
  /* Градиенты */
  --gradient-primary: linear-gradient(135deg, #0088cc 0%, #00c6ff 100%);
  --gradient-secondary: linear-gradient(135deg, #4CAF50 0%, #8BC34A 100%);
  --gradient-accent: linear-gradient(135deg, #FF9800 0%, #FFC107 100%);
  
  /* Фоны */
  --bg-main: #f8fafc;
  --bg-white: #ffffff;
  --bg-gray: #f1f5f9;
  --bg-dark: #1e293b;
  
  /* Текст */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;
  
  /* Границы */
  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-dark: #94a3b8;
  
  /* Тени */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
  --shadow-colored: 0 8px 24px rgba(0, 136, 204, 0.25);
  
  /* Радиусы */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Переходы */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-main);
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== HEADER ===== */
.header {
  background: rgba(255, 255, 255, 0.98);
  padding: 20px 0;
  box-shadow: var(--shadow-sm);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.header.scrolled {
  padding: 12px 0;
  box-shadow: var(--shadow-md);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo i {
  -webkit-text-fill-color: var(--primary);
}

.nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav a {
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-normal);
}

.nav a:hover {
  color: var(--primary);
  transform: translateY(-2px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
  transition: var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--bg-white);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  padding: 24px;
  opacity: 0;
  transform: translateY(-20px);
  transition: var(--transition-normal);
}

.mobile-menu.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav a {
  padding: 12px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition-normal);
}

.mobile-nav a:hover {
  background: var(--bg-gray);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: var(--transition-normal);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: var(--shadow-colored);
  border-radius: var(--radius-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 136, 204, 0.4);
}

/* Специальный стиль для кнопки "Каталог" */
.btn-catalog {
  background: linear-gradient(135deg, #0088cc 0%, #00c6ff 50%, #0088cc 100%);
  background-size: 200% 100%;
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(0, 136, 204, 0.35);
  border-radius: var(--radius-full);
  font-weight: 700;
  padding: 14px 32px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-catalog::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.btn-catalog:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 16px 40px rgba(0, 136, 204, 0.5);
  background-position: 100% 0;
}

.btn-catalog:hover::before {
  left: 100%;
}

.btn-catalog:active {
  transform: translateY(-2px) scale(1.02);
}

.btn-secondary {
  background: var(--bg-white);
  color: var(--primary);
  border-color: var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-gray);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.btn-admin {
  background: rgba(0, 136, 204, 0.1);
  color: var(--primary);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: var(--transition-normal);
  border: 2px solid transparent;
}

.btn-admin:hover {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
  box-shadow: var(--shadow-colored);
}

.btn-admin-mobile {
  background: rgba(0, 136, 204, 0.1);
  color: var(--primary);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition-normal);
  border: 2px solid transparent;
  width: 100%;
  justify-content: center;
  font-weight: 600;
}

.btn-admin-mobile:hover {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-colored);
}

/* ===== SECTIONS ===== */
.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.2rem;
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: 60px 0 24px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 48px;
  margin-bottom: 48px;
}

.footer-section h4 {
  font-size: 1.2rem;
  margin-bottom: 16px;
  color: var(--primary-light);
}

.footer-description {
  color: var(--text-muted);
  margin: 16px 0;
  line-height: 1.7;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: var(--transition-normal);
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-muted);
  transition: var(--transition-normal);
}

.footer-links a:hover {
  color: var(--primary-light);
  padding-left: 5px;
}

.footer-contacts {
  list-style: none;
}

.footer-contacts li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--text-muted);
}

.footer-contacts i {
  color: var(--primary-light);
}

.footer-contacts a {
  color: var(--text-muted);
  transition: var(--transition-normal);
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: var(--text-muted);
}

.footer-disclaimer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--accent);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .section-subtitle {
    font-size: 1rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ===== MODAL ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  padding: 20px;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 32px;
  max-width: 600px;
  width: 100%;
  position: relative;
  transform: scale(0.9);
  transition: var(--transition-normal);
}

.modal.active .modal-content {
  transform: scale(1);
}

.modal-small {
  max-width: 450px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--bg-gray);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-normal);
  color: var(--text-secondary);
}

.modal-close:hover {
  background: var(--primary);
  color: white;
  transform: rotate(90deg);
}

.modal-header {
  text-align: center;
  margin-bottom: 24px;
}

.modal-header h2 {
  margin-top: 12px;
  color: var(--text-primary);
}

/* ===== FORM ===== */
.admin-login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-control {
  padding: 14px 16px;
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition-normal);
  background: var(--bg-white);
  color: var(--text-primary);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.1);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-alert {
  padding: 12px 16px;
  background: rgba(239, 68, 68, 0.1);
  border: 2px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md);
  color: #dc2626;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  animation: shake 0.3s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

/* Избранное */
.favorites-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.favorites-counter {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  background: linear-gradient(135deg, #ec4899 0%, #f472b6 100%);
  color: white;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0 6px;
}

.mobile-nav .favorites-counter {
  margin-left: 8px;
}

/* Уведомления */
.notification-toast {
  position: fixed;
  top: 100px;
  right: 24px;
  background: white;
  padding: 16px 24px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  z-index: 9999;
  opacity: 0;
  transform: translateX(400px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.notification-toast.show {
  opacity: 1;
  transform: translateX(0);
}

.notification-toast i {
  font-size: 1.5rem;
}

.notification-success {
  border-left: 4px solid #10b981;
}

.notification-success i {
  color: #10b981;
}

.notification-info {
  border-left: 4px solid #3b82f6;
}

.notification-info i {
  color: #3b82f6;
}

@media (max-width: 768px) {
  .notification-toast {
    right: 16px;
    left: 16px;
    max-width: calc(100% - 32px);
  }
}

/* Адаптивность для кнопки каталога */
@media (max-width: 968px) {
  .btn-catalog {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 16px 24px;
    font-size: 1rem;
  }
  
  .mobile-nav .btn-catalog {
    margin-top: 8px;
  }
}

@media (max-width: 480px) {
  .btn-catalog {
    padding: 14px 20px;
    font-size: 0.95rem;
  }
}