:root {
  --font-size: 16px;
  --background: #fdf7ff;
  --background-gradient-from: #f5e9ff;
  --background-gradient-via: #ffffff;
  --background-gradient-to: #ffe6f0;
  --foreground: #111111;

  --primary: #5b21b6;
  --primary-light: #ec4899;

  --card-bg: #ffffff;
  --card-border: rgba(0, 0, 0, 0.06);

  --border-radius-lg: 1.25rem;

  --shadow-soft: 0 20px 35px rgba(15, 23, 42, 0.08);
  --shadow-soft-hover: 0 24px 45px rgba(15, 23, 42, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: var(--font-size);
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: radial-gradient(
      circle at top left,
      var(--background-gradient-from),
      transparent 50%
    ),
    radial-gradient(
      circle at bottom right,
      var(--background-gradient-to),
      transparent 50%
    ),
    var(--background-gradient-via);
  color: var(--foreground);
}

/* PAGE */

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* HEADER */

.header {
  width: 100%;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo-img {
  height: 40px;
  display: block;
}

.header__tabs {
  display: flex;
  gap: 0.5rem;
}

.tab-button {
  border: none;
  outline: none;
  cursor: pointer;
  padding: 0.5rem 1.5rem;
  border-radius: 0.75rem;
  background: transparent;
  color: #4b5563;
  font-size: 0.95rem;
  transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease,
    transform 0.1s ease;
}

.tab-button:hover {
  color: var(--primary);
}

.tab-button--active {
  background: #ffffff;
  color: var(--primary);
  box-shadow: 0 8px 25px rgba(148, 163, 184, 0.25);
  transform: translateY(-1px);
}

/* MAIN */

.main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
}

.auth-card-wrapper {
  width: 100%;
  max-width: 420px;
}

.auth-card-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-card-logo__img {
  height: 80px;
  display: inline-block;
}

/* CARD */

.auth-card {
  background: var(--card-bg);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--card-border);
}

/* FORM */

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.875rem;
  color: #4b5563;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid #e5e7eb;
  outline: none;
  font-size: 0.95rem;
  transition: box-shadow 0.15s ease, border-color 0.15s ease,
    background-color 0.15s ease;
  background-color: #ffffff;
}

.input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(129, 140, 248, 0.4);
}

/* Телефон */

.input-wrapper--phone .input-prefix {
  position: absolute;
  left: 1rem;
  color: #6b7280;
  font-size: 0.95rem;
  pointer-events: none;
}

.input--phone {
  padding-left: 4rem;
}

/* Пароль / иконка */

.input-wrapper--password {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: none;
  outline: none;
  cursor: pointer;
  color: #9ca3af;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

.password-toggle:hover {
  color: #6b7280;
}

/* SELECT (пункт выдачи) */

.select-wrapper {
  position: relative;
}

.select-button {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid #e5e7eb;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.95rem;
  color: #111827;
}

.select-placeholder {
  color: #9ca3af;
}

.select-arrow {
  font-size: 0.8rem;
  color: #9ca3af;
}

.select-dropdown {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 0.25rem);
  background: #ffffff;
  border-radius: 0.75rem;
  border: 1px solid #e5e7eb;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.15);
  overflow: hidden;
  display: none;
  z-index: 10;
}

.select-dropdown--open {
  display: block;
}

.select-option {
  width: 100%;
  padding: 0.7rem 1rem;
  text-align: left;
  border: none;
  background: #ffffff;
  font-size: 0.95rem;
  cursor: pointer;
}

.select-option:hover {
  background: #f5f3ff;
}

/* BUTTON */

.btn {
  border: none;
  outline: none;
  cursor: pointer;
  font-size: 0.95rem;
  border-radius: 0.9rem;
  padding: 0.8rem 1rem;
  font-weight: 600;
  transition: box-shadow 0.15s ease, transform 0.1s ease,
    background-image 0.2s ease, filter 0.15s ease;
}

.btn--primary {
  width: 100%;
  color: #ffffff;
  background-image: linear-gradient(
    90deg,
    var(--primary),
    var(--primary-light)
  );
  box-shadow: 0 14px 30px rgba(236, 72, 153, 0.35);
}

.btn--primary:hover {
  filter: brightness(1.03);
  box-shadow: var(--shadow-soft-hover);
  transform: translateY(-1px);
}

/* LINKS / TEXT */

.auth-links {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.auth-link {
  border: none;
  outline: none;
  background: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  font-size: 0.85rem;
  color: #6b7280;
  transition: color 0.15s ease;
}

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

.auth-link-text {
  font-size: 0.85rem;
  color: #6b7280;
}

.auth-link--accent {
  color: var(--primary);
  font-weight: 500;
}

.auth-info {
  margin-top: 1.75rem;
  text-align: center;
  font-size: 0.85rem;
  color: #9ca3af;
}

.helper-text {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  color: #9ca3af;
}

/* FOOTER */

.footer {
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: 0.8rem;
  color: #9ca3af;
}

/* Адаптив */

@media (max-width: 640px) {
  .header {
    padding-inline: 1rem;
  }

  .auth-card {
    padding: 1.5rem;
  }

  .auth-card-logo__img {
    height: 64px;
  }
}

/* ===== ТЕМНАЯ / СВЕТЛАЯ ТЕМА ДЛЯ AUTH ===== */

/* Кнопка переключения темы в шапке */
.theme-toggle {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1.4rem;
  padding: 0.25rem;
  border-radius: 999px;
  color: #6b7280;
  margin-left: 0.75rem;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.theme-toggle:hover {
  background: #f3f4f6;
  color: #111827;
}

/* Светлая тема (по умолчанию) */
body.theme-light {
  background: var(
    --bg-light,
    radial-gradient(circle at top left, var(--background-gradient-from), transparent 50%),
    radial-gradient(circle at bottom right, var(--background-gradient-to), transparent 50%),
    var(--background-gradient-via)
  );
  color: var(--foreground);
}

/* Тёмная тема */
body.theme-dark {
  background: var(--bg-dark, #020617);
  color: #e5e7eb;
}

/* Карточка авторизации */
body.theme-dark .auth-card {
  background: rgba(15, 23, 42, 0.98);
  border-color: #1f2937;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
}

/* Текст/лейблы */
body.theme-dark .form-label {
  color: #e5e7eb;
}

body.theme-dark .auth-link-text,
body.theme-dark .auth-info {
  color: #9ca3af;
}

/* Инпуты */
body.theme-dark .input {
  background-color: #020617;
  color: #e5e7eb;
  border-color: #1f2937;
}

body.theme-dark .input::placeholder {
  color: #64748b;
}

body.theme-dark .input:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.55);
}

/* Селект (пункт выдачи) */
body.theme-dark .select-button {
  background: #020617;
  border-color: #1f2937;
  color: #e5e7eb;
}

body.theme-dark .select-placeholder {
  color: #64748b;
}

body.theme-dark .select-dropdown {
  background: #020617;
  border-color: #1f2937;
}

body.theme-dark .select-option {
  background: #020617;
  color: #e5e7eb;
}

body.theme-dark .select-option:hover {
  background: #111827;
}

/* Табы в шапке */
body.theme-dark .tab-button {
  color: #9ca3af;
}

body.theme-dark .tab-button--active {
  background: #020617;
  color: #c4b5fd;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
}

/* Кнопка "Забыли пароль" и ссылки */
body.theme-dark .auth-link {
  color: #9ca3af;
}

body.theme-dark .auth-link:hover {
  color: #c4b5fd;
}

body.theme-dark .auth-link--accent {
  color: #c4b5fd;
}

/* Ошибки/хелпер */
body.theme-dark .helper-text {
  color: #6b7280;
}

/* Футер */
body.theme-dark .footer {
  color: #6b7280;
}