:root {
  --manabi-blue: #4263eb;
  --manabi-cyan: #20bfe3;
  --manabi-green: #35c993;
  --manabi-navy: #172f57;
  --manabi-bg: #f4f8fd;
  --manabi-line: #dce7f2;
}
body {
  font-family: Inter, 'Noto Sans JP', 'Noto Sans SC', Arial, sans-serif;
  background:
    radial-gradient(circle at 8% 5%, #dff5ff, transparent 27%),
    radial-gradient(circle at 92% 90%, #e4fff3, transparent 24%), var(--manabi-bg);
  color: var(--manabi-navy);
}
button,
.primary {
  background: linear-gradient(100deg, var(--manabi-blue), #3478f6);
  color: #fff;
  border-color: transparent;
}
input,
select,
textarea {
  border-color: var(--manabi-line) !important;
}
.logo i,
.brand i:not(.manabi-wordmark i) {
  font-size: 0 !important;
  background: transparent url('/assets/brand/manabi-ai-symbol-v6.svg?v=11') center/contain no-repeat !important;
  border-radius: 0 !important;
}
.logo i {
  width: 40px !important;
  height: 40px !important;
}
.manabi-auth-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  color: var(--manabi-navy);
  margin-bottom: 28px;
}
.manabi-auth-brand img {
  width: 50px;
  height: 50px;
}

.manabi-brand-symbol {
  display: block;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  object-fit: contain;
}

.manabi-brand-logo {
  display: block;
  width: 112px;
  height: 64px;
  flex: 0 0 auto;
  object-fit: contain;
}
.manabi-auth-brand span {
  font-family: 'Arial Rounded MT Bold', 'Avenir Next', 'Trebuchet MS', sans-serif;
  font-size: 24px;
  letter-spacing: -1px;
}
.manabi-auth-brand b {
  font-weight: 900;
}
.manabi-auth-brand i {
  font-style: normal;
  color: var(--manabi-blue);
  font-weight: 900;
}
aside,
header {
  border-color: var(--manabi-line);
}
.stats article,
.course,
.card,
.review-item,
.console-main,
form {
  border-color: var(--manabi-line);
}
body:has(.manabi-auth-brand) main {
  width: min(480px, 92vw);
}
body:has(.manabi-auth-brand) section {
  border: 1px solid #e1ebf4;
  border-radius: 20px;
  box-shadow: 0 28px 75px #1c4a7518;
  padding: 32px;
}
body:has(.manabi-auth-brand) .tabs {
  background: #edf4fa;
}
body:has(.manabi-auth-brand) .tabs .on {
  color: var(--manabi-blue);
  box-shadow: 0 4px 15px #315da715;
}
body:has(.manabi-auth-brand) h1 {
  font-size: 27px;
}
body:has(.manabi-auth-brand) label {
  font-size: 13px;
}
body:has(.manabi-auth-brand) input {
  padding: 13px;
  font-size: 15px;
}
body:has(.manabi-auth-brand) input:focus {
  border-color: var(--manabi-blue) !important;
  box-shadow: 0 0 0 3px #4263eb15;
}
body:has(.manabi-auth-brand) form > a {
  color: var(--manabi-blue);
  font-size: 12px;
}
body:has(.manabi-auth-brand) form > small {
  display: block;
  color: var(--manabi-blue);
  letter-spacing: 1.7px;
  margin-top: 24px;
}

.generated-course-cover {
  position: relative;
  display: flex;
  aspect-ratio: 16 / 9;
  min-height: 150px;
  padding: clamp(18px, 3vw, 32px);
  overflow: hidden;
  flex-direction: column;
  justify-content: space-between;
  color: var(--course-cover-text, #fff);
  background: var(--course-cover-background, #315fe8);
  border-radius: 15px;
}

.generated-course-cover::after {
  position: absolute;
  right: -12%;
  bottom: -45%;
  width: 65%;
  aspect-ratio: 1;
  content: '';
  border: 2px solid currentColor;
  border-radius: 50%;
  opacity: 0.2;
}

.generated-course-cover span {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.8px;
  opacity: 0.82;
}

.generated-course-cover strong {
  z-index: 1;
  max-width: 90%;
  font-size: clamp(20px, 2.4vw, 32px);
  line-height: 1.25;
}

.generated-course-cover > small {
  z-index: 1;
  align-self: flex-end;
  font-size: 13px;
  font-weight: 700;
  opacity: 0.9;
}

.generated-course-cover .course-cover-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  display: block;
  width: auto;
  margin: 0;
  padding: 6px 10px;
  color: inherit;
  font-size: 11px;
  line-height: 1;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

.generated-course-cover > em {
  z-index: 1;
  width: max-content;
  padding: 6px 10px;
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.17);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
}

.generated-cover-editor {
  display: grid;
  grid-template-columns: 1fr 110px 110px;
  gap: 14px;
  padding: 18px;
  border: 1px solid #d8e5f3;
  border-radius: 14px;
}

.generated-cover-editor .cover-preview {
  grid-column: 1 / -1;
  width: min(100%, 520px);
}

.cover-palette-note {
  align-self: center;
  margin: 0;
  color: #667b91;
  font-size: 13px;
  line-height: 1.6;
}