/* ==========================================================================
   ProjectManagement — design system
   ========================================================================== */

:root {
  --pm-primary: #4f46e5;
  --pm-primary-dark: #4338ca;
  --pm-primary-light: #eef2ff;
  --pm-primary-ring: rgba(79, 70, 229, 0.25);

  --pm-ink: #1e293b;
  --pm-ink-soft: #334155;
  --pm-muted: #64748b;
  --pm-muted-light: #94a3b8;

  --pm-border: #e2e8f0;
  --pm-border-soft: #eef1f6;
  --pm-bg: #f8fafc;
  --pm-surface: #ffffff;

  --pm-danger: #dc2626;
  --pm-danger-bg: #fee2e2;
  --pm-warning: #b45309;
  --pm-warning-bg: #fef3c7;
  --pm-success: #047857;
  --pm-success-bg: #d1fae5;
  --pm-neutral: #475569;
  --pm-neutral-bg: #f1f5f9;

  --pm-radius-sm: 6px;
  --pm-radius: 10px;
  --pm-radius-lg: 14px;

  --pm-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --pm-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --pm-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  --pm-shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.14);

  --pm-font: "Segoe UI", ui-sans-serif, system-ui, -apple-system, "Inter", Roboto, Helvetica, Arial, sans-serif;
}

html {
  font-size: 15px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

html,
body {
  height: 100%;
}

body {
  font-family: var(--pm-font);
  background-color: var(--pm-bg);
  background-image:
    radial-gradient(ellipse 1100px 500px at 15% -10%, rgba(79, 70, 229, 0.09), transparent 60%),
    radial-gradient(ellipse 900px 500px at 100% 0%, rgba(79, 70, 229, 0.06), transparent 55%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--pm-ink);
  margin-bottom: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

main[role="main"] {
  flex: 1 0 auto;
  padding-top: 0.5rem;
}

body > .container-fluid,
.app-navbar > .container-fluid,
.footer > .container-fluid {
  padding-left: clamp(1rem, 3vw, 3rem);
  padding-right: clamp(1rem, 3vw, 3rem);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--pm-ink);
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-weight: 700; }

.text-muted, small.text-muted, .lead {
  color: var(--pm-muted) !important;
}

a {
  color: var(--pm-primary);
  text-decoration: none;
}

a:hover {
  color: var(--pm-primary-dark);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus,
.form-control:focus, .form-check-input:focus, .form-select:focus {
  box-shadow: 0 0 0 0.2rem var(--pm-primary-ring);
}

/* --------------------------------------------------------------------------
   Icons
   -------------------------------------------------------------------------- */

.icon {
  width: 1.05em;
  height: 1.05em;
  display: inline-block;
  vertical-align: -0.2em;
  flex-shrink: 0;
}

.nav-link .icon,
.btn .icon,
.legend-item .icon {
  margin-right: 0.4rem;
}

.card-title .icon {
  margin-right: 0.5rem;
  color: var(--pm-primary);
}

.btn-sm .icon {
  margin-right: 0.3rem;
}

.icon-trailing {
  margin-right: 0 !important;
  margin-left: 0.4rem;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  font-weight: 500;
  border-radius: var(--pm-radius-sm);
  padding: 0.5rem 1.1rem;
  transition: transform 0.08s ease, box-shadow 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.btn-sm {
  padding: 0.3rem 0.75rem;
  border-radius: var(--pm-radius-sm);
}

.btn-lg {
  padding: 0.7rem 1.5rem;
  border-radius: var(--pm-radius);
}

.btn-primary {
  color: #fff;
  background-color: var(--pm-primary);
  border-color: var(--pm-primary);
  box-shadow: var(--pm-shadow-xs);
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--pm-primary-dark);
  border-color: var(--pm-primary-dark);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-outline-primary {
  color: var(--pm-primary);
  border-color: var(--pm-primary);
}

.btn-outline-primary:hover {
  background-color: var(--pm-primary);
  border-color: var(--pm-primary);
  color: #fff;
}

.btn-secondary {
  color: #fff;
  background-color: var(--pm-ink-soft);
  border-color: var(--pm-ink-soft);
}

.btn-secondary:hover {
  background-color: var(--pm-ink);
  border-color: var(--pm-ink);
}

.btn-outline-secondary {
  color: var(--pm-neutral);
  border-color: var(--pm-border);
  background-color: var(--pm-surface);
}

.btn-outline-secondary:hover {
  background-color: var(--pm-neutral-bg);
  border-color: var(--pm-muted-light);
  color: var(--pm-ink);
}

.btn-outline-danger {
  color: var(--pm-danger);
  border-color: var(--pm-danger);
}

.btn-outline-danger:hover {
  background-color: var(--pm-danger);
  border-color: var(--pm-danger);
}

.btn-link {
  color: var(--pm-muted);
  font-weight: 500;
}

.btn-link:hover {
  color: var(--pm-ink);
}

.btn-link.text-danger {
  color: var(--pm-danger) !important;
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */

.form-label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--pm-ink-soft);
  margin-bottom: 0.35rem;
}

.form-control, .form-select {
  border-radius: var(--pm-radius-sm);
  border-color: var(--pm-border);
  padding: 0.5rem 0.75rem;
}

.form-select {
  padding-right: 2.25rem;
}

.form-select-sm {
  padding-right: 2rem;
}

.form-control:focus, .form-select:focus {
  border-color: var(--pm-primary);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* --------------------------------------------------------------------------
   Surfaces: navbar, cards, tables, footer
   -------------------------------------------------------------------------- */

.app-navbar {
  background-color: var(--pm-surface) !important;
  border-bottom: 1px solid var(--pm-border);
  box-shadow: var(--pm-shadow-xs);
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.brand-logo {
  height: 32px;
  width: auto;
  flex-shrink: 0;
}

.navbar-brand {
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--pm-ink) !important;
  white-space: normal;
  text-align: center;
  word-break: break-all;
}

.app-navbar .nav-link {
  color: var(--pm-ink-soft) !important;
  font-weight: 500;
  border-radius: var(--pm-radius-sm);
  padding: 0.4rem 0.7rem;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.app-navbar .nav-link:hover {
  background-color: var(--pm-neutral-bg);
  color: var(--pm-ink) !important;
}

.app-navbar .nav-item form .btn-link {
  color: var(--pm-ink-soft);
}

.border-top {
  border-top: 1px solid var(--pm-border);
}
.border-bottom {
  border-bottom: 1px solid var(--pm-border);
}

.box-shadow {
  box-shadow: var(--pm-shadow-xs);
}

.card {
  border: 1px solid var(--pm-border);
  border-radius: var(--pm-radius);
  box-shadow: var(--pm-shadow-xs);
}

.card-header {
  background-color: var(--pm-surface);
  border-bottom: 1px solid var(--pm-border-soft);
  font-weight: 600;
}

.card-footer {
  background-color: transparent;
  border-top: 1px solid var(--pm-border-soft);
}

a.card-project {
  transition: transform 0.12s ease, box-shadow 0.15s ease;
}

.card-project:hover {
  box-shadow: var(--pm-shadow);
  transform: translateY(-2px);
  border-color: var(--pm-muted-light);
}

.card-title {
  font-weight: 600;
}

.surface-card {
  background-color: var(--pm-surface);
  border: 1px solid var(--pm-border);
  border-radius: var(--pm-radius-lg);
  box-shadow: var(--pm-shadow-sm);
  padding: 2rem;
}

.surface-card-tight {
  background-color: var(--pm-surface);
  border: 1px solid var(--pm-border);
  border-radius: var(--pm-radius);
  box-shadow: var(--pm-shadow-xs);
}

.list-group-item {
  border-color: var(--pm-border-soft);
}

.table {
  --bs-table-hover-bg: var(--pm-neutral-bg);
}

.table thead th {
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--pm-muted);
  font-weight: 700;
  border-bottom-width: 1px;
  border-color: var(--pm-border);
  background-color: var(--pm-bg);
}

.table td {
  border-color: var(--pm-border-soft);
  vertical-align: middle;
}

.alert {
  border-radius: var(--pm-radius);
  border: none;
}

.alert-danger {
  background-color: var(--pm-danger-bg);
  color: var(--pm-danger);
}

.alert-success {
  background-color: var(--pm-success-bg);
  color: var(--pm-success);
}

/* --------------------------------------------------------------------------
   Badges / priority chips
   -------------------------------------------------------------------------- */

.badge {
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.38em 0.65em;
  border-radius: 999px;
  font-size: 0.7rem;
  text-transform: uppercase;
}

.badge.bg-danger {
  background-color: var(--pm-danger-bg) !important;
  color: var(--pm-danger) !important;
}

.badge.bg-warning {
  background-color: var(--pm-warning-bg) !important;
  color: var(--pm-warning) !important;
}

.badge.bg-secondary {
  background-color: var(--pm-neutral-bg) !important;
  color: var(--pm-neutral) !important;
}

.badge.bg-success {
  background-color: var(--pm-success-bg) !important;
  color: var(--pm-success) !important;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer {
  flex-shrink: 0;
  background-color: var(--pm-surface);
  border-top: 1px solid var(--pm-border);
  color: var(--pm-muted);
  font-size: 0.85rem;
  line-height: 1;
  padding: 1.25rem 0;
}

button.accept-policy {
  font-size: 1rem;
  line-height: inherit;
}

/* --------------------------------------------------------------------------
   Home hero
   -------------------------------------------------------------------------- */

.hero-panel {
  background: linear-gradient(180deg, var(--pm-primary-light) 0%, rgba(238, 242, 255, 0) 100%);
  border-radius: var(--pm-radius-lg);
  padding: 4rem 2rem;
}

.hero-panel h1 {
  font-size: 2.5rem;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--pm-ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
}

.hero-feature .icon {
  width: 1.3em;
  height: 1.3em;
  color: var(--pm-primary);
}

/* --------------------------------------------------------------------------
   Kanban board
   -------------------------------------------------------------------------- */

.kanban-board {
  padding-bottom: 0.5rem;
}

.kanban-column {
  flex: 0 0 300px;
  width: 300px;
  background-color: var(--pm-bg);
  display: flex;
  flex-direction: column;
}

.kanban-column .card-header {
  background-color: var(--pm-surface);
  border-radius: var(--pm-radius) var(--pm-radius) 0 0;
}

.kanban-column-body {
  min-height: 220px;
  padding: 0.75rem !important;
  flex: 1 1 auto;
  transition: background-color 0.12s ease;
  border-radius: 0;
}

.kanban-column-body.drag-over {
  background-color: var(--pm-primary-light);
}

.kanban-card {
  border: 1px solid var(--pm-border);
  border-left: 3px solid var(--pm-muted-light);
  border-radius: var(--pm-radius-sm);
  background-color: var(--pm-surface);
  box-shadow: var(--pm-shadow-xs);
  cursor: grab;
  transition: box-shadow 0.15s ease, transform 0.1s ease, opacity 0.1s ease;
}

.kanban-card:hover {
  box-shadow: var(--pm-shadow-sm);
}

.kanban-card.dragging {
  opacity: 0.45;
}

.kanban-card:has(.badge.bg-danger) {
  border-left-color: var(--pm-danger);
}

.kanban-card:has(.badge.bg-warning) {
  border-left-color: var(--pm-warning);
}

.task-list-card {
  border: 1px solid var(--pm-border);
  border-left: 3px solid var(--pm-muted-light);
  border-radius: var(--pm-radius-sm);
  background-color: var(--pm-surface);
  box-shadow: var(--pm-shadow-xs);
  transition: box-shadow 0.15s ease;
}

.task-list-card:hover {
  box-shadow: var(--pm-shadow-sm);
}

.task-list-card:has(.badge.bg-danger) {
  border-left-color: var(--pm-danger);
}

.task-list-card:has(.badge.bg-warning) {
  border-left-color: var(--pm-warning);
}

/* --------------------------------------------------------------------------
   Calendar
   -------------------------------------------------------------------------- */

.calendar-header-row,
.calendar-body-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.calendar-header-row {
  margin-bottom: 6px;
}

.calendar-header-cell {
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--pm-muted);
  text-align: center;
  padding: 4px;
}

.calendar-cell {
  min-height: 100px;
  background-color: var(--pm-surface);
  border: 1px solid var(--pm-border);
  border-radius: var(--pm-radius-sm);
  padding: 6px;
  transition: box-shadow 0.12s ease;
}

.calendar-cell:not(.empty):hover {
  box-shadow: var(--pm-shadow-xs);
}

.calendar-cell.empty {
  border: none;
  background-color: transparent;
}

.calendar-cell.today {
  background-color: var(--pm-primary-light);
  border-color: var(--pm-primary);
}

.calendar-day-number {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--pm-muted);
  margin-bottom: 4px;
}

.calendar-cell.today .calendar-day-number {
  color: var(--pm-primary-dark);
}

.calendar-task {
  font-size: 0.68rem;
}

.calendar-task-middle {
  height: 6px;
  min-height: 6px;
  padding: 0;
  border-radius: 3px;
}

.calendar-task-chip,
.calendar-task-chip:hover {
  background-color: var(--task-color, var(--pm-muted-light));
  border: 1px solid var(--task-color, var(--pm-muted-light));
  border-radius: var(--pm-radius-sm);
  color: #fff;
  padding: 0.15rem 0.4rem;
  text-transform: none;
  font-weight: 500;
  letter-spacing: normal;
}

.calendar-task-bar {
  height: 6px;
  min-height: 6px;
  border-radius: 3px;
  background-color: var(--task-color, var(--pm-muted-light));
}

/* --------------------------------------------------------------------------
   Project quick-links (calendar)
   -------------------------------------------------------------------------- */

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--pm-ink-soft);
  border: 1px solid var(--pm-border);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  background-color: var(--pm-surface);
}

.legend-item:hover {
  color: var(--pm-ink);
  border-color: var(--pm-muted-light);
  background-color: var(--pm-neutral-bg);
}

/* --------------------------------------------------------------------------
   Task comments
   -------------------------------------------------------------------------- */

.comment-thread {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.comment {
  border: 1px solid var(--pm-border-soft);
  border-radius: var(--pm-radius);
  background-color: var(--pm-bg);
  padding: 0.85rem 1rem;
}

.comment-author {
  font-weight: 600;
  color: var(--pm-ink);
  font-size: 0.9rem;
}

.comment-time {
  color: var(--pm-muted);
  font-size: 0.8rem;
  margin-left: 0.5rem;
}

.comment-body {
  white-space: pre-wrap;
  color: var(--pm-ink-soft);
  margin-bottom: 0;
}

.attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--pm-ink-soft);
  background-color: var(--pm-surface);
  border: 1px solid var(--pm-border);
  border-radius: var(--pm-radius-sm);
  padding: 0.3rem 0.6rem;
  max-width: 100%;
}

.attachment-chip-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 220px;
}

.attachment-chip:hover {
  color: var(--pm-primary);
  border-color: var(--pm-primary);
  background-color: var(--pm-primary-light);
}

.attachment-chip-error {
  color: var(--pm-danger) !important;
  border-color: var(--pm-danger) !important;
  background-color: var(--pm-danger-bg) !important;
}

.attachment-chip .icon {
  color: var(--pm-muted);
}

.attachment-thumb {
  width: 28px;
  height: 28px;
  object-fit: cover;
  border-radius: var(--pm-radius-sm);
  border: 1px solid var(--pm-border);
}

.attachment-size {
  color: var(--pm-muted);
  font-weight: 400;
}