/* ---- PORTAL GLOBAL ---- */
.portal-page {
  background: var(--bg);
  min-height: 100vh;
}

/* ---- NAV ---- */
.portal-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--fg); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 8px; }

.nav-link {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-link:hover { color: var(--fg); background: var(--bg-elevated); }
.nav-link--cta { color: var(--accent); border: 1px solid rgba(200, 162, 255, 0.25); }
.nav-link--cta:hover { background: var(--accent-glow); color: var(--accent-bright); }
.nav-link--logout { color: var(--fg-dim); }

/* ---- PORTAL MAIN ---- */
.portal-main { padding: 40px 0 80px; }

.portal-container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.portal-container--narrow { max-width: 780px; }

/* ---- AUTH ---- */
.auth-page {
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-container {
  width: 100%;
  max-width: 420px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.auth-logo { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--fg); text-decoration: none; margin-bottom: 32px; }

.auth-card {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
}

.auth-card h1 { font-family: var(--font-display); font-size: 1.7rem; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.02em; }
.auth-subtitle { color: var(--fg-muted); font-size: 0.95rem; margin-bottom: 28px; }

.auth-error {
  background: rgba(255, 100, 100, 0.1);
  border: 1px solid rgba(255, 100, 100, 0.3);
  border-radius: 10px;
  padding: 12px 16px;
  color: #ff8080;
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.auth-form { display: flex; flex-direction: column; gap: 20px; }
.auth-switch { text-align: center; font-size: 0.88rem; color: var(--fg-muted); margin-top: 20px; }
.auth-switch a { color: var(--accent); text-decoration: none; }
.auth-switch a:hover { text-decoration: underline; }
.auth-terms { text-align: center; font-size: 0.78rem; color: var(--fg-dim); margin-top: 12px; line-height: 1.5; }

/* ---- FORM ELEMENTS ---- */
.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-group label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: 0.03em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
  box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group select option { background: var(--bg-card); }
.form-group textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---- BUTTONS ---- */
.btn-primary {
  background: var(--accent);
  color: #0a0a0f;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 12px 24px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.15s, transform 0.1s;
}

.btn-primary:hover { background: var(--accent-bright); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-full { width: 100%; text-align: center; box-sizing: border-box; }

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--gold));
  color: #0a0a0f;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 10px 20px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: opacity 0.15s, transform 0.1s;
}

.btn-accent:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--fg-muted);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 20px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: border-color 0.15s, color 0.15s;
}

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

/* ---- COURSE DETAIL ---- */
.course-start-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.course-week-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.week-link {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all 0.15s;
}
.week-link:hover { border-color: var(--accent); color: var(--accent); }
.week-link--active {
  background: var(--accent-glow);
  border-color: rgba(200, 162, 255, 0.25);
  color: var(--accent);
}
.week-link--done { opacity: 0.5; text-decoration: line-through; }

/* ---- RESPONSIVE (auth + nav) ---- */
@media (max-width: 600px) {
  .auth-card { padding: 28px 20px; }
  .nav-links { gap: 2px; }
  .nav-link { padding: 6px 8px; font-size: 0.82rem; }
  .form-row { grid-template-columns: 1fr; }
}