/* ================================================================
   MAGACIN APP — THEME SYSTEM
   Svjetla/tamna tema, mobile-first, modern design
   ================================================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=DM+Mono:wght@400;500&display=swap');

/* ---- CSS varijable — Svjetla tema (default) ---- */
:root {
  /* Primarne boje */
  --accent:        #2563eb;
  --accent-hover:  #1d4ed8;
  --accent-light:  #eff6ff;
  --accent-text:   #1e40af;

  /* Pozadine */
  --bg-body:       #f1f5f9;
  --bg-surface:    #ffffff;
  --bg-surface-2:  #f8fafc;
  --bg-sidebar:    #0f172a;
  --bg-header:     #0f172a;

  /* Tekst */
  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-muted:     #94a3b8;
  --text-on-dark:   #f1f5f9;
  --text-on-dark-2: #94a3b8;

  /* Obrubi */
  --border:         #e2e8f0;
  --border-strong:  #cbd5e1;

  /* Tabele */
  --table-header-bg: #1e293b;
  --table-header-text: #f1f5f9;
  --table-row-odd:  #ffffff;
  --table-row-even: #f8fafc;
  --table-row-hover: #eff6ff;
  --table-border:   #e2e8f0;

  /* Status boje */
  --success:        #16a34a;
  --success-bg:     #f0fdf4;
  --warning:        #d97706;
  --warning-bg:     #fffbeb;
  --danger:         #dc2626;
  --danger-bg:      #fef2f2;
  --info:           #0891b2;
  --info-bg:        #ecfeff;

  /* Sjene */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg:  0 8px 24px rgba(0,0,0,0.12);

  /* Layout */
  --sidebar-width:      240px;
  --sidebar-collapsed:  0px;
  --header-height:      56px;
  --radius-sm:          6px;
  --radius-md:          10px;
  --radius-lg:          14px;

  /* Font */
  --font-main:  'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:  'DM Mono', 'Courier New', monospace;

  /* Tranzicija */
  --transition: 0.2s ease;
}

/* ---- Tamna tema ---- */
[data-theme="dark"] {
  --accent:        #3b82f6;
  --accent-hover:  #60a5fa;
  --accent-light:  #1e3a5f;
  --accent-text:   #93c5fd;

  --bg-body:       #0a0f1e;
  --bg-surface:    #111827;
  --bg-surface-2:  #1e2433;
  --bg-sidebar:    #080d1a;
  --bg-header:     #080d1a;

  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #475569;
  --text-on-dark:   #f1f5f9;
  --text-on-dark-2: #64748b;

  --border:         #1e2a3a;
  --border-strong:  #2d3f55;

  --table-header-bg:   #1e293b;
  --table-header-text: #e2e8f0;
  --table-row-odd:     #111827;
  --table-row-even:    #141c2b;
  --table-row-hover:   #1e3a5f;
  --table-border:      #1e2a3a;

  --success-bg:  #052e16;
  --warning-bg:  #1c1400;
  --danger-bg:   #1c0a0a;
  --info-bg:     #0a1f2e;

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 24px rgba(0,0,0,0.6);
}

/* ================================================================
   RESET & BASE
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

/* ================================================================
   LAYOUT — SIDEBAR + MAIN
   ================================================================ */
#container {
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
#sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 1000;
  transition: transform var(--transition), width var(--transition);
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255,255,255,0.05);
}

#sidebar::-webkit-scrollbar { width: 4px; }
#sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

/* ---- Glavni sadržaj ---- */
#main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition);
}

/* ---- Header ---- */
.app-header {
  height: var(--header-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.app-header .page-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

/* ---- Content area ---- */
.content-area {
  flex: 1;
  padding: 24px;
}

/* ================================================================
   SIDEBAR KOMPONENTE
   ================================================================ */
.sidebar-logo {
  padding: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.sidebar-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.sidebar-logo-placeholder {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: white;
  font-weight: 700;
  flex-shrink: 0;
}

.sidebar-logo-text {
  flex: 1;
  overflow: hidden;
}

.sidebar-logo-text .firm-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-on-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-logo-text .firm-sub {
  font-size: 11px;
  color: var(--text-on-dark-2);
}

/* Nav sekcije */
.sidebar-nav {
  flex: 1;
  padding: 10px 0;
}

.sidebar-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-on-dark-2);
  padding: 16px 16px 6px;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  color: rgba(241,245,249,0.65);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 400;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  position: relative;
}

.sidebar-item i {
  font-size: 17px;
  width: 20px;
  flex-shrink: 0;
  opacity: 0.7;
}

.sidebar-item:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-on-dark);
}

.sidebar-item:hover i { opacity: 1; }

.sidebar-item.active {
  background: rgba(37,99,235,0.2);
  color: #93c5fd;
  font-weight: 500;
}

.sidebar-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

.sidebar-item.active i { opacity: 1; color: #93c5fd; }

.sidebar-item.add-action {
  color: rgba(134,239,172,0.8);
}

.sidebar-item.add-action:hover {
  background: rgba(22,163,74,0.15);
  color: #86efac;
}

.sidebar-item.danger-action {
  color: rgba(252,165,165,0.8);
}

.sidebar-item.danger-action:hover {
  background: rgba(220,38,38,0.15);
  color: #fca5a5;
}

/* Sidebar footer */
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(37,99,235,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: #93c5fd;
  flex-shrink: 0;
}

.sidebar-user-info {
  flex: 1;
  overflow: hidden;
}

.sidebar-user-info .username {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-on-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-info .user-role {
  font-size: 11px;
  color: var(--text-on-dark-2);
}

/* ================================================================
   HAMBURGER + MOBILE OVERLAY
   ================================================================ */
.hamburger {
  width: 36px;
  height: 36px;
  border: none;
  background: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 20px;
  transition: background var(--transition);
  flex-shrink: 0;
}

.hamburger:hover { background: var(--bg-surface-2); }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  backdrop-filter: blur(2px);
}

/* ================================================================
   THEME TOGGLE DUGME
   ================================================================ */
.theme-toggle {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  background: var(--bg-surface-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 18px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ================================================================
   KARTICE
   ================================================================ */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-header h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.card-body {
  padding: 20px;
}

/* Statistika kartice na home */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.stat-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.stat-card-icon.blue  { background: var(--accent-light); color: var(--accent); }
.stat-card-icon.green { background: var(--success-bg);   color: var(--success); }
.stat-card-icon.amber { background: var(--warning-bg);   color: var(--warning); }
.stat-card-icon.red   { background: var(--danger-bg);    color: var(--danger); }

.stat-card-info { flex: 1; }
.stat-card-label { font-size: 12px; color: var(--text-muted); font-weight: 500; margin-bottom: 4px; }
.stat-card-value { font-size: 24px; font-weight: 600; color: var(--text-primary); line-height: 1.2; }

/* ================================================================
   TABELE
   ================================================================ */
.table-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 200px;
  max-width: 380px;
  height: 38px;
  padding: 0 12px 0 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-surface-2);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 10px center;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
  background-color: var(--bg-surface);
}

.search-input::placeholder { color: var(--text-muted); }

.table-count {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  padding: 0 4px;
}

/* Tabela stilovi */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table thead th {
  background: var(--table-header-bg);
  color: var(--table-header-text);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 10px 14px;
  text-align: left;
  white-space: nowrap;
  border: none;
}

.data-table thead th:first-child { border-radius: var(--radius-sm) 0 0 0; }
.data-table thead th:last-child  { border-radius: 0 var(--radius-sm) 0 0; }

.data-table tbody tr:nth-child(odd)  { background: var(--table-row-odd); }
.data-table tbody tr:nth-child(even) { background: var(--table-row-even); }

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

.data-table tbody tr:hover { background: var(--table-row-hover); }

.data-table tbody td {
  padding: 10px 14px;
  color: var(--text-primary);
  vertical-align: middle;
  border: none;
}

.data-table tbody td.muted { color: var(--text-secondary); }
.data-table tbody td.mono  { font-family: var(--font-mono); font-size: 12px; }
.data-table tbody td.center { text-align: center; }

/* Responsive tabela wrapper */
.table-responsive {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.table-responsive .data-table thead th:first-child,
.table-responsive .data-table thead th:last-child { border-radius: 0; }

/* ================================================================
   PAGINACIJA
   ================================================================ */
.pagination-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px 0 4px;
}

.pagination-wrapper .page-item .page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
}

.pagination-wrapper .page-item .page-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.pagination-wrapper .page-item.active .page-link {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.pagination-wrapper .page-item.disabled .page-link {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ================================================================
   DUGMAD
   ================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  height: 36px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

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

.btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text-secondary);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.btn-success {
  background: var(--success);
  color: white;
  border-color: var(--success);
}
.btn-success:hover { filter: brightness(0.9); }

.btn-danger {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}
.btn-danger:hover { filter: brightness(0.9); }

.btn-warning {
  background: var(--warning);
  color: white;
  border-color: var(--warning);
}
.btn-warning:hover { filter: brightness(0.9); }

.btn-sm {
  height: 30px;
  padding: 0 10px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

.btn i { font-size: 16px; }

/* Akcija dugme u tabeli */
.btn-action {
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-surface-2);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-action:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

/* ================================================================
   FORME
   ================================================================ */
.form-section {
  margin-bottom: 24px;
}

.form-section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-group.full { grid-column: 1 / -1; }

.form-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-label .required { color: var(--danger); margin-left: 2px; }

.form-control {
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-surface-2);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
  background: var(--bg-surface);
}

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

textarea.form-control {
  height: auto;
  padding: 10px 12px;
  resize: vertical;
}

select.form-control {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
  appearance: none;
}

.form-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Toggle switch */
.toggle-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.toggle-group:last-child { border-bottom: none; }

.toggle-info .toggle-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.toggle-info .toggle-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.toggle-switch {
  position: relative;
  width: 42px;
  height: 24px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border-strong);
  border-radius: 24px;
  cursor: pointer;
  transition: background var(--transition);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ================================================================
   MODALI
   ================================================================ */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 16px;
  backdrop-filter: blur(3px);
}

.modal-backdrop.active { display: flex; }

.modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 620px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-surface);
  z-index: 1;
}

.modal-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  width: 30px;
  height: 30px;
  border: none;
  background: var(--bg-surface-2);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.modal-close:hover { background: var(--danger-bg); color: var(--danger); }

.modal-body { padding: 20px; }

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ================================================================
   BADGE / STATUS
   ================================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger); }
.badge-info    { background: var(--info-bg);    color: var(--info); }
.badge-muted   { background: var(--bg-surface-2); color: var(--text-muted); border: 1px solid var(--border); }

/* ================================================================
   ALERT PORUKE
   ================================================================ */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  margin-bottom: 16px;
}

.alert i { font-size: 17px; flex-shrink: 0; margin-top: 1px; }
.alert-danger  { background: var(--danger-bg);  color: var(--danger);  border: 1px solid rgba(220,38,38,0.2);  }
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(22,163,74,0.2); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(217,119,6,0.2); }
.alert-info    { background: var(--info-bg);    color: var(--info);    border: 1px solid rgba(8,145,178,0.2);  }

/* ================================================================
   FOOTER
   ================================================================ */
.app-footer {
  padding: 12px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
}

/* ================================================================
   UTILITY KLASE
   ================================================================ */
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 12px; }
.font-mono { font-family: var(--font-mono); }
.separator { height: 1px; background: var(--border); margin: 20px 0; }

/* ================================================================
   RESPONSIVNOST — MOBILNI
   ================================================================ */
@media (max-width: 768px) {

  /* Sidebar se sakriva */
  #sidebar {
    transform: translateX(-100%);
    box-shadow: none;
  }

  #sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .sidebar-overlay.active { display: block; }

  /* Hamburger se prikazuje */
  .hamburger { display: flex; }

  /* Main content zauzima cijeli ekran */
  #main-content { margin-left: 0; }

  /* Content padding manji */
  .content-area { padding: 14px; }

  /* Tabele — horizontalni scroll */
  .data-table { min-width: 600px; }

  /* Toolbar stack */
  .table-toolbar { flex-direction: column; align-items: stretch; }
  .search-input { max-width: 100%; }

  /* Modal full screen na mobile */
  .modal-backdrop { padding: 0; align-items: flex-end; }
  .modal-box { max-width: 100%; border-radius: var(--radius-lg) var(--radius-lg) 0 0; max-height: 92vh; }

  /* Form grid single column */
  .form-grid { grid-template-columns: 1fr; }

  /* Stat cards 2 kolone */
  .stat-cards { grid-template-columns: repeat(2, 1fr); }

  /* Header title skraćen */
  .app-header .page-title { font-size: 14px; }
}

@media (max-width: 400px) {
  .stat-cards { grid-template-columns: 1fr; }
}

/* ================================================================
   PRINT STILOVI (za otpremnice)
   ================================================================ */
@media print {
  #sidebar, .app-header, .app-footer, .btn, .no-print { display: none !important; }
  #main-content { margin-left: 0; }
  .content-area { padding: 0; }
}

/* ================================================================
   TRANSITION za theme switch
   ================================================================ */
body, #sidebar, .app-header, .card, .modal-box,
.data-table tbody tr, .form-control, .btn {
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}