:root {
  --bg: #0f0f23;
  --surface: #16213e;
  --surface-hover: #1a1a3e;
  --border: #2a2a4a;
  --text: #e0e0e0;
  --text-muted: #8888aa;
  --accent: #e94560;
  --accent-hover: #d63851;
  --success: #4ade80;
  --error: #e94560;
}

/* ── Reset ── */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Header ── */

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

/* ── Main ── */

.main {
  max-width: 960px;
  margin: 3rem auto;
  padding: 0 2rem;
}

/* ── App Grid ── */

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.app-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: var(--text);
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  cursor: pointer;
}

.app-card:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.app-icon {
  font-size: 3rem;
  line-height: 1;
}

.app-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
}

/* ── Buttons ── */

.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  line-height: 1.4;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--text-muted);
}

.btn-danger {
  background: transparent;
  color: var(--error);
  border: 1px solid var(--error);
}

.btn-danger:hover {
  background: rgba(233, 69, 96, 0.15);
}

.btn-small {
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
}

/* ── Modal ── */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.modal-open {
  display: flex;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 520px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 1.15rem;
  color: #fff;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 0 0.25rem;
}

.modal-close:hover {
  color: var(--text);
}

.modal-body {
  padding: 1.25rem 1.5rem;
}

/* ── User List ── */

.user-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.user-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.75rem;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.user-name {
  font-weight: 500;
  color: var(--text);
}

.user-detail {
  color: var(--text-muted, #888);
  font-size: 0.85rem;
}

.user-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── Role Badges ── */

.role-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.role-admin {
  background: rgba(233, 69, 96, 0.2);
  color: var(--accent);
  border: 1px solid rgba(233, 69, 96, 0.3);
}

.role-user {
  background: rgba(96, 165, 250, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(96, 165, 250, 0.3);
}

/* ── Forms ── */

.form-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.form-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.input {
  padding: 0.5rem 0.65rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
  flex: 1;
  min-width: 100px;
}

.input:focus {
  border-color: var(--accent);
}

.select {
  flex: 0 0 auto;
  min-width: 80px;
  cursor: pointer;
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1rem 0;
}

.error-msg {
  color: var(--error);
  font-size: 0.825rem;
  margin-top: 0.5rem;
  min-height: 1.2em;
}

.text-muted {
  color: var(--text-muted);
  font-size: 0.825rem;
}

/* ── Toast ── */

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 2000;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}

.toast-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast-success {
  background: rgba(74, 222, 128, 0.15);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.3);
}

.toast-error {
  background: rgba(233, 69, 96, 0.15);
  color: var(--error);
  border: 1px solid rgba(233, 69, 96, 0.3);
}

/* ── Responsive ── */

@media (max-width: 600px) {
  .header {
    padding: 0.75rem 1rem;
  }

  .main {
    padding: 0 1rem;
    margin: 1.5rem auto;
  }

  .app-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
  }

  .app-card {
    padding: 1.5rem 1rem;
  }

  .form-row {
    flex-direction: column;
  }

  .form-row .input,
  .form-row .select,
  .form-row .btn {
    width: 100%;
    flex: none;
  }

  .manage-users-btn {
    font-size: 0.8rem;
    padding: 0.4rem 0.65rem;
  }
}