/* Shared platform shell — dashboard / academy (Phase 1 baseline) */

:root {
  --bg: #0f1419;
  --surface: #1a222d;
  --text: #e8eef4;
  --muted: #8b9aab;
  --accent: #3d9eff;
  --border: #2a3544;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
}

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

body.app {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.app-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.app-header__auth {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-left: auto;
}

.app-header__email {
  font-size: 0.85rem;
  color: var(--muted);
  max-width: 14rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-header__link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.app-header__link:hover {
  color: var(--accent);
}

.app-header__logout {
  margin: 0;
}

.app-header__brand a {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.app-header__brand a:hover {
  color: var(--accent);
}

.app-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.app-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.app-nav a:hover,
.app-nav a.is-active {
  color: var(--accent);
}

.app-nav a.is-active {
  font-weight: 600;
}

.app-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

.panel h1 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
}

.panel p {
  margin: 0;
  color: var(--text);
}

.panel p.muted {
  color: var(--muted);
}

.panel p + p {
  margin-top: 1rem;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.auth-panel {
  max-width: 26rem;
}

.auth-form label {
  display: block;
  margin-top: 0.85rem;
  font-size: 0.9rem;
}

.auth-form input {
  width: 100%;
  max-width: 24rem;
  padding: 0.5rem 0.65rem;
  margin-top: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}

.form-error {
  color: #f07178;
  margin: 0 0 0.75rem;
}

.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
  cursor: pointer;
  font-family: inherit;
}

.btn--primary {
  background: var(--accent);
  border-color: transparent;
  color: #0a0e12;
  font-weight: 600;
}

.btn--primary:hover {
  filter: brightness(1.08);
}

.btn--ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}

.btn--ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.panel a {
  color: var(--accent);
}