:root {
  --bg: #0f1218;
  --bg-elevated: #161b24;
  --bg-card: #1a202c;
  --border: #2d3748;
  --text: #e8ecf4;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-dim: rgba(56, 189, 248, 0.15);
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --blocked: #a78bfa;
  --radius: 10px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

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

/* Auth */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(56, 189, 248, 0.12), transparent),
    var(--bg);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.auth-card h1 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 600;
}

.auth-card .subtitle {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font: inherit;
}

textarea {
  min-height: 80px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(180deg, #0ea5e9, #0284c7);
  color: #fff;
  border-color: #0369a1;
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(1.05);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
}

.btn-danger {
  background: rgba(248, 113, 113, 0.15);
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.35);
}

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

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

.auth-footer {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}

/* Layout */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  padding: 1.25rem 0;
  display: flex;
  flex-direction: column;
}

.sidebar-brand {
  padding: 0 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.75rem;
}

.sidebar-brand h1 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.sidebar-brand .tag {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.sidebar-nav {
  flex: 1;
  padding: 0 0.5rem;
}

.nav-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.55rem 0.75rem;
  margin-bottom: 0.2rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.nav-item:hover {
  background: rgba(56, 189, 248, 0.08);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.sidebar-footer {
  padding: 1rem 1.25rem 0;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.user-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.main {
  flex: 1;
  min-width: 0;
  padding: 1.5rem 2rem 2rem;
}

.top-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.top-bar h2 {
  margin: 0;
  font-size: 1.35rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
}

.stat-card .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.stat-card .value {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 0.2rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: flex-end;
  margin-bottom: 1.25rem;
}

.filters .field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 120px;
}

.filters .field label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.filters input[type="search"] {
  min-width: 180px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  transition: border-color 0.15s;
}

.project-card.blocked-project {
  border-color: rgba(167, 139, 250, 0.45);
  box-shadow: inset 0 0 0 1px rgba(167, 139, 250, 0.08);
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.project-card-header h3 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.3;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.badge {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
}

.badge.status-active {
  border-color: rgba(52, 211, 153, 0.4);
  color: var(--success);
}

.badge.status-blocked {
  border-color: rgba(167, 139, 250, 0.45);
  color: var(--blocked);
}

.badge.status-done {
  border-color: rgba(56, 189, 248, 0.4);
  color: var(--accent);
}

.badge.status-paused {
  color: var(--text-muted);
}

.badge.status-idea {
  color: #f472b6;
  border-color: rgba(244, 114, 182, 0.35);
}

.badge.priority-critical {
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.4);
}

.badge.priority-high {
  color: var(--warning);
}

.badge.next-missing {
  background: rgba(251, 191, 36, 0.12);
  border-color: rgba(251, 191, 36, 0.45);
  color: var(--warning);
}

.meta-row {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.meta-row strong {
  color: var(--text);
  font-weight: 500;
}

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

.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--bg);
  border-radius: 99px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.progress-bar > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #0ea5e9, #34d399);
  border-radius: inherit;
}

.score-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.score-row span strong {
  color: var(--accent);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
}

.modal.modal-sm {
  max-width: 400px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.15rem;
}

.modal-body .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

@media (max-width: 520px) {
  .modal-body .form-row {
    grid-template-columns: 1fr;
  }
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  padding: 0.2rem;
}

.icon-btn:hover {
  color: var(--text);
}

/* Toast */
#toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: min(360px, calc(100vw - 2rem));
}

.toast {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 0.9rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  animation: toast-in 0.25s ease;
}

.toast.success {
  border-color: rgba(52, 211, 153, 0.35);
}

.toast.error {
  border-color: rgba(248, 113, 113, 0.45);
  color: #fecaca;
}

@keyframes toast-in {
  from {
    transform: translateY(8px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.empty-state p {
  margin: 0 0 1rem;
}

@media (max-width: 900px) {
  .app-shell {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    padding: 0.75rem 1rem;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .sidebar-brand {
    border: none;
    margin: 0;
    padding: 0 0.5rem 0 0;
  }

  .sidebar-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0;
  }

  .nav-item {
    margin: 0;
    font-size: 0.85rem;
  }

  .sidebar-footer {
    border: none;
    margin: 0;
    padding: 0;
    padding-left: 0.5rem;
  }
}