:root {
  --f-bg: #0b0b0d;
  --f-card: rgba(255, 255, 255, 0.06);
  --f-text: rgba(255, 255, 255, 0.92);
  --f-muted: rgba(255, 255, 255, 0.72);
  --f-border: rgba(255, 255, 255, 0.14);
  --f-accent: #8b0000;
  --f-accent-2: #ffcc00;
  --f-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  --f-radius: 16px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1000px 500px at 20% 0%, rgba(139, 0, 0, 0.35), transparent 60%),
    radial-gradient(800px 500px at 80% 10%, rgba(255, 204, 0, 0.18), transparent 65%),
    var(--f-bg);
  color: var(--f-text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, sans-serif;
  line-height: 1.45;
}

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

.container {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(10, 10, 12, 0.72);
  border-bottom: 1px solid var(--f-border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  letter-spacing: 0.4px;
}

.brand-title {
  font-weight: 800;
  font-size: 18px;
}

.brand-tag {
  font-size: 12px;
  color: var(--f-muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--f-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--f-text);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
  user-select: none;
}

.btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn-primary {
  border-color: rgba(139, 0, 0, 0.55);
  background: linear-gradient(180deg, rgba(139, 0, 0, 0.65), rgba(139, 0, 0, 0.35));
}

.btn-primary:hover {
  background: linear-gradient(180deg, rgba(139, 0, 0, 0.78), rgba(139, 0, 0, 0.45));
  border-color: rgba(255, 204, 0, 0.45);
}

.btn-inscrito {
  cursor: default;
  border-color: rgba(22, 101, 52, 0.65);
  background: linear-gradient(180deg, rgba(22, 101, 52, 0.92), rgba(21, 128, 61, 0.75));
  color: #ecfdf5;
  font-weight: 700;
}

.btn-inscrito:hover {
  transform: none;
  background: linear-gradient(180deg, rgba(22, 101, 52, 0.92), rgba(21, 128, 61, 0.75));
}

.course-actions {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.meus-cursos-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.meus-cursos-item {
  padding: 14px 16px;
  border: 1px solid var(--f-border);
  border-radius: var(--f-radius);
  background: rgba(255, 255, 255, 0.04);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--f-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--f-muted);
  font-size: 13px;
}

.aviso-construcao {
  padding: 28px 16px 8px;
  text-align: center;
}

.aviso-construcao-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  max-width: 480px;
  margin: 0 auto;
  padding: 22px 20px;
  border: 1px dashed var(--f-border);
  border-radius: var(--f-radius);
  background: rgba(255, 204, 0, 0.08);
}

.aviso-construcao-icone {
  font-size: 2.75rem;
  color: var(--f-accent-2);
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.35));
}

.aviso-construcao-texto {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--f-text);
}

.hero {
  padding: 46px 0 24px;
}

.hero h1 {
  margin: 0 0 10px 0;
  font-size: clamp(28px, 5vw, 44px);
  letter-spacing: -0.6px;
}

.hero p {
  margin: 0;
  max-width: 60ch;
  color: var(--f-muted);
  font-size: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  padding: 18px 0 60px;
}

.card {
  grid-column: span 12;
  background: var(--f-card);
  border: 1px solid var(--f-border);
  border-radius: var(--f-radius);
  box-shadow: var(--f-shadow);
  padding: 18px;
}

.card h2 {
  margin: 0 0 8px 0;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--f-muted);
}

.courses {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.course {
  grid-column: span 12;
  border: 1px solid var(--f-border);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.18);
  padding: 14px;
}

.course-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.course-title {
  font-weight: 800;
  margin: 0;
  font-size: 16px;
}

.course-meta {
  color: var(--f-muted);
  font-size: 13px;
  margin-top: 6px;
}

.topics {
  margin: 10px 0 0 0;
  padding-left: 18px;
  color: var(--f-muted);
}

.topics li {
  margin: 4px 0;
}

.empty {
  padding: 14px;
  border: 1px dashed rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  color: var(--f-muted);
}

.form {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  font-size: 13px;
  color: var(--f-muted);
}

.field input,
.field textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.22);
  color: var(--f-text);
  outline: none;
}

.field textarea {
  min-height: 110px;
  resize: vertical;
}

.helper {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.status {
  font-size: 13px;
  color: var(--f-muted);
}

@media (min-width: 720px) {
  .course {
    grid-column: span 6;
  }
}

@media (min-width: 980px) {
  .course {
    grid-column: span 4;
  }
}