/* ==========================================================================
   MANAGE - MVP SaaS Core Stylesheet
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --secondary: #64748b;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark: #0f172a;
  --light: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --sidebar-width: 260px;
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--light);
  color: var(--text-main);
  line-height: 1.5;
  font-size: 0.95rem;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--primary-hover);
}

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

.app-sidebar {
  width: var(--sidebar-width);
  background-color: var(--dark);
  color: #fff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-menu {
  list-style: none;
  padding: 1rem 0;
  flex: 1;
  overflow-y: auto;
}

.sidebar-item a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: #94a3b8;
  font-weight: 500;
  transition: all 0.2s ease;
}

.sidebar-item a:hover, .sidebar-item.active a {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.08);
  border-left: 4px solid var(--primary);
}

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: #64748b;
}

.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-navbar {
  height: 64px;
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 900;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.role-superadmin { background-color: #fee2e2; color: #dc2626; }
.role-admin { background-color: #e0e7ff; color: #4338ca; }
.role-affiliate { background-color: #d1fae5; color: #047857; }

.app-content {
  padding: 1.5rem;
  flex: 1;
}

/* Cards & Stats */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background-color: var(--primary-light);
  color: var(--primary);
}

.stat-val {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.2;
}

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

/* Data Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th, .table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
}

.table th {
  background-color: #f8fafc;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
}

.table tbody tr:hover {
  background-color: #f1f5f9;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.btn-secondary { background-color: var(--secondary); color: #fff; }
.btn-secondary:hover { background-color: #475569; }

.btn-success { background-color: var(--success); color: #fff; }
.btn-success:hover { background-color: #059669; }

.btn-danger { background-color: var(--danger); color: #fff; }
.btn-danger:hover { background-color: #dc2626; }

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-icon { padding: 0.4rem 0.6rem; }

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.4rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 90px;
}

/* Kanban Board & Pipeline */
.kanban-board {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  align-items: flex-start;
  min-height: calc(100vh - 200px);
}

.kanban-column {
  width: 320px;
  min-width: 320px;
  background-color: #f1f5f9;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 180px);
}

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

.column-title {
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.column-count {
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  font-weight: 700;
}

.column-body {
  padding: 1rem;
  overflow-y: auto;
  flex: 1;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.task-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  cursor: grab;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  user-select: none;
}

.task-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.task-card:active {
  cursor: grabbing;
}

.sortable-ghost {
  opacity: 0.4;
  background-color: #e2e8f0;
  border: 2px dashed var(--primary);
}

.task-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--dark);
  margin-bottom: 0.4rem;
}

.task-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ref-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  background-color: #fef3c7;
  color: #92400e;
  border-radius: 4px;
  font-weight: 600;
  width: fit-content;
}

/* Modals */
.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(15, 23, 42, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  padding: 1rem;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--surface);
  width: 100%;
  max-width: 550px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

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

.modal-body {
  padding: 1.5rem;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  background-color: #f8fafc;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}