/* Mojave OS Dashboard — Shell Layout */

/* ── Auth Gate ──────────────────────────────────── */

.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--charcoal);
  padding: 24px;
}

.auth-card {
  background: var(--offwhite);
  border-radius: var(--radius-lg);
  padding: 48px 40px 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
}

.auth-logo-mark {
  width: 40px;
  height: 40px;
  background: var(--orange);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
}

.auth-logo-text {
  font-size: 17px;
  font-weight: 600;
  color: var(--charcoal);
  letter-spacing: -0.2px;
}

.auth-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 6px;
  letter-spacing: -0.4px;
}

.auth-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.auth-field {
  position: relative;
  margin-bottom: 16px;
}

.auth-field input {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  background: white;
  color: var(--charcoal);
  transition: border-color var(--transition);
  outline: none;
}

.auth-field input:focus {
  border-color: var(--teal);
}

.auth-field input.error {
  border-color: #c0392b;
  animation: shake 0.35s ease;
}

.auth-error {
  font-size: 13px;
  color: #c0392b;
  margin-top: -10px;
  margin-bottom: 14px;
  min-height: 18px;
  text-align: left;
}

.auth-submit {
  width: 100%;
  padding: 13px;
  background: var(--orange);
  color: white;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
  letter-spacing: 0.1px;
}

.auth-submit:hover {
  background: var(--orange-dim);
}

.auth-submit:active {
  transform: scale(0.98);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-6px); }
  40%       { transform: translateX(6px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}

/* ── Top Navigation ─────────────────────────────── */

.top-nav {
  height: 56px;
  background: var(--charcoal);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}

.nav-logo-mark {
  width: 30px;
  height: 30px;
  background: var(--orange);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 14px;
}

.nav-logo-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--offwhite);
  letter-spacing: -0.1px;
}

.nav-spacer { flex: 1; }

.client-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--sand);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
}

.client-switcher:hover {
  background: rgba(255,255,255,0.07);
}

.client-switcher-caret {
  font-size: 10px;
  opacity: 0.6;
}

.nav-signout {
  padding: 6px 10px;
  border-radius: var(--radius);
  color: rgba(245, 237, 224, 0.5);
  font-size: 12px;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}

.nav-signout:hover {
  color: var(--sand);
  background: rgba(255,255,255,0.07);
}

/* ── Tab Bar ────────────────────────────────────── */

.tab-bar {
  background: white;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  overflow-x: auto;
  scrollbar-width: none;
  position: sticky;
  top: 56px;
  z-index: 90;
}

.tab-bar::-webkit-scrollbar { display: none; }

.tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 16px 13px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  flex-shrink: 0;
}

.tab:hover {
  color: var(--charcoal);
}

.tab.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.tab-icon {
  font-size: 15px;
  line-height: 1;
}

/* ── Main Content ───────────────────────────────── */

.main-content {
  padding: 28px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* ── Placeholder Panels ─────────────────────────── */

.placeholder-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1.5px dashed var(--border);
  padding: 64px 32px;
  text-align: center;
}

.placeholder-card h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.placeholder-card p {
  font-size: 14px;
  color: var(--text-secondary);
}

.placeholder-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--sand);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 16px;
}

/* ── Command Center (Section 1 shell) ───────────── */

.cc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 768px) {
  .cc-grid { grid-template-columns: 1fr; }
  .tab { padding: 12px 12px 11px; font-size: 13px; }
  .main-content { padding: 20px 16px; }
  .auth-card { padding: 36px 24px 28px; }
}