:root {
  --bg: #fff;
  --card: #fff;
  --soft: #f3f7ff;
  --text: #0b1b3a;
  --muted: #51618a;
  --pri: #1f5bff;
  --pri2: #00b4ff;
  --line: #dce6fb;
  --error: #ff4757;
  color-scheme: light;
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: env(safe-area-inset-top, 0px);
}

body {
  margin: 0;
  background: linear-gradient(135deg, rgba(31, 91, 255, 0.08), rgba(0, 180, 255, 0.08)), var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Контейнер */
.container {
  position: relative;
  width: 100%;
  max-width: 480px;
}

/* Коробка авторизации */
.auth-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 48px 32px;
  box-shadow: 0 20px 60px rgba(31, 91, 255, 0.15);
  position: relative;
  z-index: 1;
}

/* Логотип */
.logo-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 32px;
  gap: 12px;
}

.logo {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  display: block;
}

.logo-wrapper h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 0;
  background: linear-gradient(135deg, var(--pri), var(--pri2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Заголовок */
.auth-box h2 {
  font-size: 32px;
  letter-spacing: -1px;
  margin: 0 0 8px;
  text-align: center;
  color: var(--text);
}

.subtitle {
  text-align: center;
  color: var(--muted);
  margin: 0 0 32px;
  font-size: 15px;
}

/* Форма */
form {
  display: grid;
  gap: 16px;
}

.form-group {
  display: grid;
  gap: 8px;
}

label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--text);
  font: inherit;
  font-size: 15px;
  transition: all 0.2s;
}

input:focus {
  outline: none;
  border-color: var(--pri);
  box-shadow: 0 0 0 3px rgba(31, 91, 255, 0.1);
}

input::placeholder {
  color: var(--muted);
}

/* Кнопка отправки */
.btn-submit {
  width: 100%;
  padding: 14px 26px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--pri), var(--pri2));
  color: #fff;
  font-weight: 600;
  border: 0;
  cursor: pointer;
  font-size: 15px;
  box-shadow: 0 8px 24px rgba(31, 91, 255, 0.3);
  transition: all 0.2s;
  margin-top: 8px;
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(31, 91, 255, 0.4);
}

.btn-submit:active:not(:disabled) {
  transform: translateY(0);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Сообщения формы */
.form-message {
  min-height: 24px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  margin-top: 12px;
}

.form-message.success {
  color: #2ecc71;
}

.form-message.error {
  color: var(--error);
}

/* Ссылка */
.link {
  color: var(--pri);
  font-weight: 600;
  transition: color 0.2s;
}

.link:hover {
  color: var(--pri2);
}

/* Текст подвала */
.footer-text {
  text-align: center;
  margin-top: 24px;
  font-size: 14px;
  color: var(--muted);
}

.footer-text p {
  margin: 0;
}

/* Декоративные круги */
.decoration {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
}

.circle-1 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--pri), var(--pri2));
  top: -100px;
  right: -100px;
  filter: blur(40px);
}

.circle-2 {
  width: 250px;
  height: 250px;
  background: linear-gradient(135deg, var(--pri2), var(--pri));
  bottom: -80px;
  left: -80px;
  filter: blur(40px);
}

/* Адаптив */
@media (max-width: 600px) {
  .auth-box {
    padding: 32px 24px;
  }

  .logo-wrapper h1 {
    font-size: 24px;
  }

  .auth-box h2 {
    font-size: 24px;
  }

  input {
    font-size: 16px;
  }
}

@media (max-width: 400px) {
  .auth-box {
    padding: 24px 16px;
  }

  .logo {
    width: 48px;
    height: 48px;
  }

  .auth-box h2 {
    font-size: 20px;
  }

  .subtitle {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  input,
  .btn-submit {
    transition: none;
  }
}