@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --primary: #ff8000;
  --primary-hover: #e67300;
  --primary-light: #fff3e6;
  --text: #1e1e1e;
  --text-secondary: #6b7280;
  --bg: #f8f9fa;
  --card-bg: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --radius: 16px;
  --radius-sm: 12px;
  --transition: all 0.2s ease;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 16px;
}

#app {
  width: 100%;
  max-width: 900px;
}

.screen {
  display: none;
}

.screen.active {
  display: block;
}

/* Логин */
.login-container {
  max-width: 400px;
  margin: 10vh auto;
  text-align: center;
}

.logo img {
  max-width: 200px;
  margin-bottom: 32px;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.subtitle {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.input-group {
  position: relative;
  margin-bottom: 20px;
  text-align: left;
}

.input-group input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  background: var(--card-bg);
  transition: var(--transition);
  outline: none;
}

.input-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 128, 0, 0.2);
}

.input-group label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  pointer-events: none;
  transition: var(--transition);
  font-size: 1rem;
  background: var(--card-bg);
  padding: 0 4px;
}

.input-group input:focus+label,
.input-group input:not(:placeholder-shown)+label {
  top: 0;
  font-size: 0.8rem;
  color: var(--primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 12px rgba(255, 128, 0, 0.3);
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.icon-btn {
  padding: 8px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
}

.icon-btn:hover {
  color: var(--primary);
}

.full-width {
  width: 100%;
}

.error {
  color: #c62828;
  margin-top: 12px;
  font-weight: 500;
}

/* Главный экран */
.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-left h1 {
  font-size: 1.6rem;
  margin: 0;
}

.intro-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 24px;
  text-align: center;
}

/* Группы */
.group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.group-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.group-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 20px rgba(255, 128, 0, 0.1);
  transform: translateY(-2px);
}

.group-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.group-info {
  flex: 1;
}

.group-name {
  font-weight: 600;
  margin-bottom: 4px;
}

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

/* Контакты */
.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.contact-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(255, 128, 0, 0.15);
}

.contact-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.contact-photo,
.no-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-light);
  flex-shrink: 0;
}

.no-photo {
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
}

.contact-name {
  font-weight: 700;
  font-size: 1.15rem;
}

.contact-position {
  color: var(--primary);
  font-weight: 500;
  font-size: 0.95rem;
}

.contact-questions {
  white-space: pre-line;
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 12px 0;
  line-height: 1.5;
  flex: 1;
}

.contact-phone {
  display: inline-block;
  margin-top: auto;
  background: var(--primary);
  color: white;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 4px 8px rgba(255, 128, 0, 0.2);
}

.contact-phone:hover {
  background: var(--primary-hover);
  box-shadow: 0 6px 14px rgba(255, 128, 0, 0.35);
}

.contact-groups {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Установка */
#install-prompt {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  width: 90%;
  max-width: 400px;
}

.install-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  text-align: center;
}

.install-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

@media (max-width: 600px) {

  .group-grid,
  .contacts-grid {
    grid-template-columns: 1fr;
  }

  .main-header {
    flex-wrap: wrap;
    gap: 10px;
  }
}