/* Crimson Global Academy × Compass brand system */
:root {
  --cga-crimson: #8B0D06;
  --cga-crimson-bright: #a81830;
  --cga-blue: #184890;
  --cga-blue-dark: #10315f;
  --cga-gold: #F0A818;
  --page-bg: #F5F7FB;
  --card-bg: #ffffff;
  --border: #e6eaf0;
  --text: #1f2733;
  --text-muted: #5a6472;
  --input-bg: #fafbfd;
  --track-bg: #eef1f6;
  --btn-disabled-bg: #e7ebf1;
  --btn-disabled-fg: #a9b1bd;
  --focus-ring: rgba(24, 72, 144, 0.1);
  --card-shadow: 0 12px 40px rgba(24, 72, 144, 0.08);
  --font-brand: 'Montserrat', system-ui, sans-serif;
}

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

html,
body,
#root {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: var(--font-brand);
  color: var(--text);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-brand);
  color: var(--cga-blue);
  font-weight: 700;
}

/* Student detail panel: white identity text on dark header only */
#student-detail-title {
  color: #ffffff !important;
}

.student-detail-username {
  color: rgba(255, 255, 255, 0.85) !important;
}

.cga-page {
  min-height: 100vh;
  background: var(--page-bg);
  color: var(--text);
  font-family: var(--font-brand);
}

.cga-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: 68px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.cga-header-inner {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (min-width: 640px) {
  .cga-header-inner { padding: 0 1.5rem; }
}
@media (min-width: 1024px) {
  .cga-header-inner { padding: 0 2rem; }
}

.cga-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.cga-brand img {
  height: 34px;
  width: auto;
  display: block;
}

.cga-brand-divider {
  width: 1px;
  height: 28px;
  background: var(--border);
  flex-shrink: 0;
}

.cga-brand-wordmark {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.06em;
  color: var(--cga-blue);
  text-transform: uppercase;
}

.cga-segment {
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border-radius: 10px;
  background: var(--track-bg);
  gap: 2px;
}

.cga-segment button {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.cga-segment button.is-active {
  background: var(--cga-blue);
  color: #fff;
}

.cga-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--cga-blue);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.cga-icon-btn:hover {
  background: var(--input-bg);
  border-color: #d5dce6;
}

.cga-eyebrow {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cga-gold);
}

.cga-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--card-shadow);
  overflow: hidden;
}

.cga-card-band {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  height: 5px;
}

.cga-card-band span:nth-child(1) { background: var(--cga-crimson); }
.cga-card-band span:nth-child(2) { background: var(--cga-gold); }
.cga-card-band span:nth-child(3) { background: var(--cga-blue); }

.cga-card-body {
  padding: 40px;
}

.cga-label {
  display: block;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cga-blue);
  margin-bottom: 0.5rem;
}

.cga-input {
  width: 100%;
  padding: 0.875rem 1.125rem;
  font-family: var(--font-brand);
  font-weight: 500;
  font-size: 1rem;
  color: var(--text);
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.cga-input:focus {
  border-color: var(--cga-blue);
  box-shadow: 0 0 0 4px var(--focus-ring);
}

.cga-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 1rem 1.25rem;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  background: var(--cga-blue);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.cga-btn-primary:hover:not(:disabled) {
  background: var(--cga-blue-dark);
}

.cga-btn-primary:disabled {
  background: var(--btn-disabled-bg);
  color: var(--btn-disabled-fg);
  cursor: not-allowed;
}

.cga-footer-line {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
}

.cga-footer-line strong {
  color: var(--cga-crimson);
  font-weight: 600;
}

/* Form / selection controls inherit brand focus */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--focus-ring);
}