:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #667085;
  --primary: #6d5efc;
  --primary-dark: #5647ef;
  --border: #e8eaf2;
  --shadow: 0 10px 30px rgba(41, 47, 76, 0.08);
  --shadow-soft: 0 6px 18px rgba(41, 47, 76, 0.06);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --danger: #dc2626;
  --success-bg: #ecfdf3;
  --success-text: #027a48;
  --error-bg: #fef2f2;
  --error-text: #b42318;
  --info-bg: #eef4ff;
  --info-text: #1d4ed8;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

body {
  min-height: 100vh;
}

button,
input {
  font: inherit;
}

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

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

.auth-hero {
  padding: 24px 18px 18px;
  background:
    radial-gradient(circle at top right, rgba(109, 94, 252, 0.16), transparent 32%),
    linear-gradient(180deg, #ffffff 0%, #f7f8fd 100%);
}

.back-link {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 14px;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.auth-brand__logo {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(109, 94, 252, 0.18);
  flex-shrink: 0;
}

.auth-brand__text {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-badge {
  margin: 0;
  display: inline-block;
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.auth-brand__text h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.08;
}

.auth-brand__text p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
  max-width: 560px;
}

.auth-main {
  flex: 1;
  padding: 18px 16px 28px;
  display: flex;
  justify-content: center;
}

.auth-card {
  width: 100%;
  max-width: 560px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 16px;
  box-shadow: var(--shadow);
}

.auth-mode {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.auth-mode__pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(109, 94, 252, 0.1);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.auth-mode__pill--secondary {
  background: #f2f4f7;
  color: #475467;
}

.invite-notice {
  border-radius: 16px;
  padding: 14px 14px;
  margin-bottom: 16px;
  border: 1px solid transparent;
}

.invite-notice[hidden] {
  display: none !important;
}

.invite-notice strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
}

.invite-notice p {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
}

.invite-notice--info {
  background: var(--info-bg);
  color: var(--info-text);
  border-color: #dbeafe;
}

.invite-notice--error {
  background: var(--error-bg);
  color: var(--error-text);
  border-color: #fecaca;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.form-group[hidden],
.form-options[hidden],
.form-message[hidden] {
  display: none !important;
}

.form-group label {
  font-weight: 700;
  font-size: 14px;
}

.form-group input {
  width: 100%;
  border: 1px solid #d0d5dd;
  border-radius: 14px;
  padding: 14px 14px;
  background: #fff;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(109, 94, 252, 0.12);
}

.password-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.password-wrapper input {
  flex: 1;
}

.toggle-password {
  border: 1px solid #d0d5dd;
  background: #fff;
  border-radius: 12px;
  padding: 12px 14px;
  font-weight: 700;
  color: #475467;
  cursor: pointer;
  white-space: nowrap;
}

.field-error {
  min-height: 18px;
  color: var(--danger);
  font-size: 12px;
  font-weight: 700;
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.checkbox-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #475467;
  font-size: 14px;
}

.checkbox-inline input {
  width: 16px;
  height: 16px;
}

.text-link {
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 14px;
}

.text-link--strong {
  font-size: 15px;
}

.form-message {
  border-radius: 14px;
  padding: 12px 14px;
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
  font-weight: 700;
}

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

.form-message--success {
  background: var(--success-bg);
  color: var(--success-text);
}

.btn-primary {
  width: 100%;
  border: none;
  border-radius: 14px;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 10px 24px rgba(109, 94, 252, 0.28);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

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

.auth-footer {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  text-align: center;
}

.auth-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 520px) {
  .auth-brand {
    align-items: flex-start;
  }

  .auth-brand__logo {
    width: 56px;
    height: 56px;
  }

  .password-wrapper {
    flex-direction: column;
    align-items: stretch;
  }

  .toggle-password {
    width: 100%;
  }
}

@media (min-width: 768px) {
  .auth-shell {
    max-width: 900px;
    margin: 0 auto;
  }

  .auth-hero {
    padding: 36px 28px 22px;
    border-bottom-left-radius: var(--radius-xl);
    border-bottom-right-radius: var(--radius-xl);
  }

  .auth-brand__text h1 {
    font-size: 38px;
  }

  .auth-main {
    padding: 24px 24px 34px;
  }

  .auth-card {
    padding: 26px 22px;
  }
}