/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  color: var(--text-primary);
  background: var(--bg-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Layout Shell ── */
.app-shell {
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

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

.main-wrapper.sidebar-collapsed {
  margin-left: var(--sidebar-collapsed);
}

.main-content {
  flex: 1;
  padding: var(--spacing-xl);
  padding-top: calc(var(--topbar-height) + var(--spacing-xl));
  min-width: 0;
  overflow-x: hidden;
}

/* ── Card ── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.card:hover { box-shadow: var(--shadow-md); }

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.card-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.card-body { padding: var(--spacing-lg); }

/* ── Stat Cards ── */
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--stat-color, var(--color-primary));
  border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

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

.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--border-radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem;
  background: var(--stat-bg, var(--color-primary-light));
  color: var(--stat-color, var(--color-primary));
  margin-bottom: var(--spacing-md);
}

.stat-value {
  font-size: 1.875rem;
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-weight: var(--font-weight-medium);
}

.stat-change {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  margin-top: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-change.up   { color: var(--color-success); }
.stat-change.down { color: var(--color-danger); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--border-radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.5;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-color);
}
.btn-outline:hover {
  background: var(--bg-surface-alt);
  color: var(--text-primary);
  border-color: var(--color-secondary);
}

.btn-success { background: var(--color-success); color: #fff; border-color: var(--color-success); }
.btn-danger  { background: var(--color-danger);  color: #fff; border-color: var(--color-danger); }
.btn-sm { padding: 0.35rem 0.75rem; font-size: var(--font-size-xs); }
.btn-lg { padding: 0.75rem 1.5rem; font-size: var(--font-size-base); }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.2rem 0.6rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: 999px;
  white-space: nowrap;
}

.badge-primary   { background: var(--color-primary-light); color: var(--color-primary); }
.badge-success   { background: #dcfce7; color: var(--color-success); }
.badge-warning   { background: #fef3c7; color: var(--color-warning); }
.badge-danger    { background: #fee2e2; color: var(--color-danger); }
.badge-info      { background: #e0f2fe; color: var(--color-info); }
.badge-muted     { background: #f1f5f9; color: var(--color-muted); }
.badge-accent    { background: #fef3c7; color: var(--color-accent); }

/* ── Table ── */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

table.data-table thead th {
  background: var(--bg-surface-alt);
  color: var(--text-muted);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  text-align: left;
}

table.data-table tbody tr {
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition);
}

table.data-table tbody tr:last-child { border-bottom: none; }
table.data-table tbody tr:hover { background: var(--bg-surface-alt); }

table.data-table tbody td {
  padding: 0.875rem 1rem;
  color: var(--text-primary);
  vertical-align: middle;
}

/* ── Avatar ── */
.avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: #fff;
  flex-shrink: 0;
}

.avatar-sm { width: 28px; height: 28px; font-size: var(--font-size-xs); }
.avatar-lg { width: 48px; height: 48px; font-size: var(--font-size-lg); }

/* ── Forms ── */
.form-group { margin-bottom: var(--spacing-md); }

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.form-control {
  width: 100%;
  padding: 0.5rem 0.875rem;
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.form-control::placeholder { color: var(--text-muted); }

select.form-control { cursor: pointer; }

/* ── Date input dark mode — takvim ikonu rengi ── */
input[type="date"].form-control,
input[type="time"].form-control,
input[type="datetime-local"].form-control {
  color-scheme: light;
}
[data-theme="dark"] input[type="date"].form-control,
[data-theme="dark"] input[type="time"].form-control,
[data-theme="dark"] input[type="datetime-local"].form-control {
  color-scheme: dark;
}

/* ── Page Header ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.page-title {
  font-size: 1.375rem;
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

.page-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── FAB ── */
.fab {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 16px rgba(37,99,235,0.4);
  transition: all var(--transition);
  z-index: 50;
}

.fab:hover {
  background: var(--color-primary-dark);
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(37,99,235,0.5);
}

.fab-hidden {
  transform: translateY(calc(100% + 2rem));
  opacity: 0;
  pointer-events: none;
}

/* ── Toast ── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  background: #1e293b;
  color: #f1f5f9;
  padding: 0.75rem 1.25rem;
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-xl);
  pointer-events: all;
  animation: toastIn 0.25s ease;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.toast-success { border-left: 3px solid var(--color-success); }
.toast-danger  { border-left: 3px solid var(--color-danger); }
.toast-warning { border-left: 3px solid var(--color-warning); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.active, .modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--bg-surface);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(8px);
  transition: transform var(--transition);
}

.modal-overlay.active .modal-box, .modal-overlay.open .modal-box {
  transform: scale(1) translateY(0);
}

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

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.modal-close {
  width: 32px; height: 32px;
  border-radius: var(--border-radius);
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.25rem;
  transition: all var(--transition);
}

.modal-close:hover { background: var(--bg-surface-alt); color: var(--text-primary); }

.modal-body { padding: var(--spacing-lg); }

.modal-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

/* ── Utilities ── */
.text-muted    { color: var(--text-muted) !important; }
.text-primary  { color: var(--color-primary) !important; }
.text-success  { color: var(--color-success) !important; }
.text-danger   { color: var(--color-danger) !important; }
.text-warning  { color: var(--color-warning) !important; }
.fw-semibold   { font-weight: var(--font-weight-semibold); }
.fw-bold       { font-weight: var(--font-weight-bold); }
.fs-sm         { font-size: var(--font-size-sm); }
.fs-xs         { font-size: var(--font-size-xs); }
.d-flex        { display: flex; }
.align-center  { align-items: center; }
.gap-sm        { gap: var(--spacing-sm); }
.gap-md        { gap: var(--spacing-md); }
.mt-md         { margin-top: var(--spacing-md); }
.mb-md         { margin-bottom: var(--spacing-md); }
.mb-lg         { margin-bottom: var(--spacing-lg); }
.w-100         { width: 100%; }