/* === Глобальные настройки === */
body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: radial-gradient(circle at 40% 30%, #1a1f2d, #0d0f15 70%);
  color: #e4e6eb;
  overflow: hidden;
}

.screen {
  width: 100%;
  height: 100vh;
  display: none;
}

.screen-visible {
  display: block;
}

/* === Центрирование === */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

/* === Карточка авторизации === */
.auth-card {
  display: flex;
  background: rgba(15, 17, 25, 0.7);
  backdrop-filter: blur(20px);
  border-radius: 22px;
  padding: 40px;
  max-width: 900px;
  width: 100%;
  border: 1px solid rgba(255,255,255,0.05);
}

.auth-left {
  width: 40%;
  padding-right: 30px;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.auth-right {
  width: 60%;
  padding-left: 30px;
}

/* === Логотип === */
.logo-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f5bfe, #9d4bff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: bold;
  margin-bottom: 10px;
}

.logo-title {
  font-size: 32px;
  font-weight: 600;
}

.logo-subtitle {
  margin-bottom: 25px;
  opacity: 0.7;
}

/* === Почему === */
.why-title {
  font-size: 17px;
  margin-bottom: 10px;
  font-weight: 500;
}

.why-list {
  margin: 0;
  padding-left: 18px;
  opacity: 0.8;
}

.note-tag {
  margin-top: 20px;
  font-size: 12px;
  opacity: 0.5;
}

/* === Поля ввода === */
.field-label {
  font-size: 14px;
  margin-bottom: 6px;
  opacity: 0.7;
}

.field-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.05);
  color: white;
  outline: none;
  margin-bottom: 10px;
}

.step-title {
  font-size: 26px;
  margin-bottom: 10px;
}

.step-desc {
  opacity: 0.7;
  margin-bottom: 20px;
}

.btn-primary {
  background: linear-gradient(135deg, #5468ff, #933cff);
  color: white;
  border: none;
  padding: 12px 18px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 15px;
  transition: 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  padding: 10px 18px;
  border-radius: 12px;
  cursor: pointer;
  color: white;
}

/* === MAIN === */
.layout-main {
  display: flex;
  height: 100vh;
}

/* === Сайдбар === */
.sidebar {
  width: 300px;
  background: rgba(10,11,17,0.8);
  backdrop-filter: blur(15px);
  padding: 20px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255,255,255,0.08);
}

.sidebar-logo {
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, #4f5bfe, #9d4bff);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 20px;
}

.sidebar-title {
  font-size: 20px;
  font-weight: 600;
}

.sidebar-profile {
  margin-top: 25px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.sidebar-chats {
  margin-top: 20px;
  flex-grow: 1;
  overflow-y: auto;
}

.dialog {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

/* Диалог пустой */
.dialog-empty {
  margin: auto;
  opacity: 0.5;
  font-size: 18px;
}

/* Ввод сообщения */
.message-input-row {
  padding: 15px;
  display: flex;
  gap: 10px;
  background: rgba(15,17,25,0.6);
  border-top: 1px solid rgba(255,255,255,0.08);
}