:root {
--space-xs: 0.25rem;
--space-sm: 0.5rem;
--space-md: 1rem;
--space-lg: 1.5rem;
--space-xl: 2rem;
--radius: 0.5rem;
--transition: all 0.3s ease;
--container: 600px;
--font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html { font-size: 16px; }

body {
  min-height: 100vh;
  background: linear-gradient(to right, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  font-family: var(--font);
  color: var(--text-body);
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container);
  width: 100%;
  padding: var(--space-md) var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  opacity: 0;
  animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.card {
  background: var(--card);
  border: 2px solid var(--alpha-20);
  border-radius: var(--radius);
  padding: var(--space-md);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--alpha-40);
  transform: translateY(-0.02rem);
  box-shadow: var(--shadow-lg);
}

header.card {
  background: transparent;
  border: none;
  box-shadow: none;
}

header.card:hover {
  transform: none;
  box-shadow: none;
}

.logo {
  height: 4rem;
  background: url("../images/logo.webp") no-repeat left center;
  background-size: contain;
}

.search {
  display: flex;
  height: 3rem;
  background: var(--surface);
  border: 2px solid var(--alpha-30);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.03rem var(--primary-light);
}

.search__input {
  flex: 1;
  padding: 0 var(--space-md);
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.1rem;
  outline: none;
}

.search__input::placeholder {
  color: var(--text-dim);
}

.btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--text);
  border: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.btn:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  transform: scale(1.02);
}

.btn:active {
  transform: scale(0.98);
}

.btn--search {
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05rem;
}

.btn__icon {
  width: 1.2rem;
  height: 1.2rem;
  filter: invert(0);
}

.title {
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  white-space: nowrap;
}

.title__icon {
  width: 2rem;
  height: 2rem;
  animation: spin 3s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.subtitle {
  color: var(--text-dim);
  font-size: 1.1rem;
  text-align: center;
  margin-top: var(--space-xs);
}

.pwa-install {
  display: flex;
  justify-content: center;
  margin-top: var(--space-md);
}

.btn--install {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--text-primary);
  border: none;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
}

.btn--install:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  transform: translateY(-0.02rem);
  box-shadow: var(--shadow-medium);
  border-color: var(--border-medium);
}

.btn--install:active {
  transform: scale(0.98);
}

.install-icon {
  font-size: 1.2rem;
}

.install-text {
  font-weight: 600;
}

.heading {
  color: var(--text);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.text {
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}

.text:last-child {
  margin-bottom: 0;
}

.text--highlight {
  color: var(--primary-light);
  font-weight: 600;
  font-size: 1.1rem;
}

.link {
  color: var(--primary-light);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.link:hover {
  color: var(--text);
  text-decoration: underline;
}

.list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.list__title {
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--space-md);
}

#domain-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  background: var(--alpha-5);
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--alpha-10), transparent);
  transition: left 0.5s ease;
}

.item:hover {
  background: var(--alpha-10);
  transform: translateY(-0.02rem);
}

.item:hover::before {
  left: 100%;
}

.item__number {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  flex-shrink: 0;
}

.item__text {
  flex: 1;
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item__action {
  flex-shrink: 0;
}

.steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: var(--space-sm) 0;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.step__number {
  width: 1.5rem;
  height: 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.step__content {
  flex: 1;
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.5;
}

.float {
  position: fixed;
  right: var(--space-lg);
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.float:hover {
  transform: scale(1.1);
}

.float--service {
  bottom: 4rem;
  filter: drop-shadow(var(--shadow));
}

.float--telegram {
  bottom: 8.5rem;
  filter: drop-shadow(var(--shadow));
}



.modal {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn 0.3s ease-out;
}

.modal__content {
  background: linear-gradient(135deg, var(--modal-bg-start), var(--modal-bg-end));
  border: 2px solid var(--alpha-20);
  border-radius: var(--radius);
  padding: var(--space-lg);
  max-width: 28rem;
  width: 90%;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(0.3rem) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal__close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 1.5rem;
  height: 1.5rem;
  cursor: pointer;
  opacity: 0.7;
  transition: var(--transition);
  outline: none;
  border: none;
  background: none;
}

.modal__close:hover {
  opacity: 1;
  transform: scale(1.1);
}

.modal__close:focus {
  outline: none;
  opacity: 1;
}

.modal__logo {
  width: 6rem;
  height: auto;
  display: block;
  margin: 0 auto var(--space-md);
}

.modal__text {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.modal__text:first-of-type {
  font-size: 1.3rem;
}

.modal__text:last-of-type {
  font-size: 1rem;
  font-weight: 400;
  margin-bottom: 0;
}

.modal__url {
  background: var(--alpha-10);
  color: var(--text);
  padding: var(--space-sm);
  border-radius: var(--space-sm);
  font-size: 1rem;
  text-align: center;
  margin: var(--space-sm) 0;
  word-break: break-word;
  min-height: 2.5rem;
  border: 1px solid var(--alpha-20);
  transition: var(--transition);
  line-height: 1.4;
}

.modal__url--clickable {
  cursor: pointer;
  position: relative;
}

.modal__url--clickable::after {
  content: '👆 Click to visit';
  position: absolute;
  bottom: -1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.modal__url--clickable:hover {
  background: var(--alpha-20);
  border-color: var(--alpha-40);
}

.modal__url--clickable:hover::after {
  color: var(--text);
}

.success {
  border-color: var(--success);
}

.success .modal__text {
  color: var(--success-text);
}

.success .modal__url {
  background: var(--success-bg);
  border-color: var(--success-border);
}

.error {
  border-color: var(--error);
}

.error .modal__text {
  color: var(--error-text);
}

.error .modal__url {
  background: var(--error-bg);
  border-color: var(--error-border);
}

.error-message {
  background: linear-gradient(135deg, var(--error), var(--error-gradient-end));
  color: var(--text);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  box-shadow: var(--shadow);
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-0.2rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  
  .container {
    padding: var(--space-sm);
  }
  
  .title {
    font-size: 1.3rem;
  }
  
  .float {
    width: 3.5rem;
    height: 3.5rem;
  }
  
  .float--service {
    bottom: 3rem;
  }
  
  .float--telegram {
    bottom: 7rem;
  }
}

*:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn:focus,
.item:focus {
  outline-color: var(--primary-light);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.hidden { display: none; }
.sr-only { 
  position: absolute; 
  width: 1px; 
  height: 1px; 
  padding: 0; 
  margin: -1px; 
  overflow: hidden; 
  clip: rect(0, 0, 0, 0); 
  border: 0; 
}