/* =========================================================
   ========= DESIGN TOKENS / VARIJABLE ======================
   ========================================================= */

:root {

  /* Boje */
  --color-bg: #f6f7fb;
  --surface: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --ring: rgba(37, 99, 235, 0.35);

  --success: #16a34a;
  --success-100: #dcfce7;
  --danger: #dc2626;
  --danger-100: #fee2e2;
  --warning: #d97706;
  --warning-100: #fef3c7;
  --info: #0891b2;
  --info-100: #cffafe;

  /* Radius & sjene */
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);

  /* Razmaci */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
}


/* ========= DARK MODE VARIJANTE ========= */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f1524;
    --surface: #121a2b;
    --text: #e5e7eb;
    --muted: #9aa3b2;
    --border: #22304a;

    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --ring: rgba(59,130,246,0.45);

    --success-100: rgba(22,163,74,0.15);
    --danger-100: rgba(220,38,38,0.15);
    --warning-100: rgba(217,119,6,0.18);
    --info-100: rgba(8,145,178,0.18);

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
    --shadow-md: 0 12px 32px rgba(0,0,0,0.5);
  }
}


/* =========================================================
   ========= RESET / TIPOGRAFIJA =============================
   ========================================================= */

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3 {
  margin: 0 0 var(--sp-4);
  line-height: 1.2;
}
h1 { font-size: 28px; font-weight: 700; }
h2 { font-size: 22px; font-weight: 700; }
h3 { font-size: 18px; font-weight: 700; }

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}


/* =========================================================
   ========= LAYOUT I NAVIGACIJA =============================
   ========================================================= */

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
  background: linear-gradient(180deg, #0b1220, #111827);
  color: #fff;
  padding: var(--sp-6);
  border-right: 1px solid rgba(255,255,255,0.06);
}
.sidebar h3 {
  margin: 0 0 var(--sp-5);
  font-size: 16px;
  opacity: .9;
}
.sidebar a {
  color: #e5e7eb;
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  font-weight: 500;
  transition: background .15s ease, color .15s ease;
}
.sidebar a:hover {
  background: rgba(255,255,255,0.06);
  color: #fff;
}
.sidebar a.active {
  background: rgba(59,130,246,.18);
  color: #fff;
}
.sidebar hr {
  border: none;
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: var(--sp-5) 0;
}

/* --- Glavni sadržaj --- */
.content {
  padding: var(--sp-8);
}

/* --- Hamburger gumb --- */
.menu-toggle {
  display: none;
  font-size: 26px;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
}

/* --- Top-bar --- */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: var(--radius);
  margin-bottom: var(--sp-6);
  box-shadow: var(--shadow-xs);
  backdrop-filter: blur(6px);
}
.top-bar .left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.top-bar strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}


/* =========================================================
   ========= KARTICE / KPI GRID ==============================
   ========================================================= */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-6);
  margin-bottom: var(--sp-8);
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-6);
  box-shadow: var(--shadow-sm);
}
.card h4 {
  margin: 0 0 var(--sp-3);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
}
.card-value {
  font-size: 26px;
  font-weight: 700;
}
.card.warning {
  background: var(--warning-100);
  border-color: transparent;
}
.card.danger {
  background: var(--danger-100);
  border-color: transparent;
}


/* =========================================================
   ========= TABLICE (scroll na mobitelu) ===================
   ========================================================= */

.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.table-standard {
  width: 100%;
  min-width: 720px;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.table-standard th,
.table-standard td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  white-space: nowrap;
}
.table-standard th {
  background: rgba(0,0,0,0.02);
  color: var(--muted);
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 1;
  backdrop-filter: blur(4px);
}
.table-standard tbody tr:nth-child(even) {
  background: rgba(0,0,0,0.015);
}
.table-standard tbody tr:hover {
  background: rgba(37,99,235,0.06);
}


/* =========================================================
   ========= STATUS BADGEOVI ================================
   ========================================================= */

.badge {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid transparent;
}
.status-neispravno { background: var(--danger-100); color: var(--danger); }
.status-na-popravku { background: var(--warning-100); color: var(--warning); }
.status-u_tijeku { background: var(--info-100); color: var(--info); }
.status-zavrseno { background: var(--success-100); color: var(--success); }

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
}
.status-in-progress { background: #fef3c7; color: #92400e; }
.status-done { background: #dcfce7; color: #166534; }


/* =========================================================
   ========= FORME I GUMBI =================================
   ========================================================= */

.form-zaduzenje {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-6);
  max-width: 680px;
  box-shadow: var(--shadow-sm);
}
.form-zaduzenje label {
  display: block;
  margin-bottom: var(--sp-2);
  font-weight: 600;
  color: var(--text);
}
.form-zaduzenje input,
.form-zaduzenje textarea,
.form-zaduzenje select {
  width: 100%;
  padding: 10px 12px;
  font-size: 15px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.form-zaduzenje textarea { min-height: 110px; }

/* --- Gumbi --- */
.btn, a.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
  transition: background .15s ease, box-shadow .15s ease, transform .02s ease;
}
.btn:hover, a.btn:hover { background: var(--primary-hover); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.btn-success { background: var(--success); }
.btn-danger { background: var(--danger); }
.btn-warning { background: var(--warning); color: #111; }
.btn-info { background: var(--info); }


/* =========================================================
   ========= QR SCANNER / STATUS MSG ========================
   ========================================================= */

.scanner-box {
  margin-top: var(--sp-6);
  padding: var(--sp-5);
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  max-width: 720px;
  margin-inline: auto;
  box-shadow: var(--shadow-sm);
}
#reader {
  width: 100%;
  min-height: 320px;
  aspect-ratio: 4/3;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
#reader.flash-success { animation: flash-green .35s; border-color: var(--success); }
#reader.flash-error { animation: flash-red .35s; border-color: var(--danger); }

@keyframes flash-green {
  0% { box-shadow: 0 0 0 0 rgba(22,163,74,.4); }
  70% { box-shadow: 0 0 24px 10px rgba(22,163,74,.35); }
  100% { box-shadow: 0 0 0 0 transparent; }
}
@keyframes flash-red {
  0% { box-shadow: 0 0 0 0 rgba(220,38,38,.4); }
  70% { box-shadow: 0 0 24px 10px rgba(220,38,38,.35); }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* --- Status poruke --- */
.status-msg {
  font-weight: 700;
  margin-top: var(--sp-4);
  padding: 10px 12px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
}
.status-msg.success { background: var(--success-100); color: var(--success); }
.status-msg.error { background: var(--danger-100); color: var(--danger); }
.status-msg.loading { background: rgba(37,99,235,0.08); color: var(--primary); }
.status-msg.loading::after {
  content: "";
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 999px;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }


/* =========================================================
   ========= MODAL ==========================================
   ========================================================= */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(2,6,23,0.55);
  backdrop-filter: blur(2px);
}
.modal-content {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius);
  width: min(420px, 92vw);
  max-height: 85vh;
  overflow: auto;
  padding: var(--sp-6);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.modal-buttons {
  display: flex;
  justify-content: center;
  gap: var(--sp-4);
  margin-top: var(--sp-5);
}
.btn-confirm { background: var(--success); color: #fff; }
.btn-cancel { background: var(--danger); color: #fff; }


/* =========================================================
   ========= UTIL I RESPONSIVE ==============================
   ========================================================= */

.mt-10 { margin-top: var(--sp-3); }
.mt-20 { margin-top: var(--sp-5); }
.mt-40 { margin-top: var(--sp-8); }

/* --- Responsive layout --- */
@media (max-width: 1024px) {
  .layout { grid-template-columns: 72px 1fr; }
  .sidebar { padding: var(--sp-4); }
  .sidebar h3 { display: none; }
  .sidebar a { padding: 10px; text-align: center; border-radius: 12px; }
}

@media (max-width: 768px) {
  .menu-toggle { display: inline-block; }
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    inset: 0;
    width: 260px;
    transform: translateX(-100%);
    transition: transform .3s ease;
    z-index: 1000;
  }
  .sidebar.show { transform: translateX(0); }
  .content { padding: var(--sp-5); }
  .grid { gap: var(--sp-4); grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .grid { grid-template-columns: 1fr; }
  .card { padding: var(--sp-5); }
  h1 { font-size: 22px; }
  h2 { font-size: 18px; }
}

/* --- Tablice na mobitelu: scroll, ne stack --- */
@media (max-width: 768px) {
  .table-standard {
    font-size: 13px;
  }
  .table-standard th,
  .table-standard td {
    white-space: nowrap;
    padding: 10px 12px;
  }
  .table-responsive {
    overflow-x: auto;
  }
}

/* --- Motion preference --- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* =========================================================
   UNIVERZALNO STILIZIRANJE GUMBA ZA CIJELU APLIKACIJU
   ========================================================= */

/* osnovni izgled i poravnanje */
button,
input[type="submit"],
.btn,
a.btn {
  display: inline-flex;
  align-items: center;            /* vertikalno centriranje */
  justify-content: center;        /* horizontalno centriranje */
  gap: 8px;                       /* razmak između ikone i teksta */
  height: 40px;
  padding: 0 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-family: 'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;                 /* točno centriranje teksta */
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
  transition: background .15s ease, box-shadow .15s ease, transform .02s ease;
}

/* osnovni izgled (neutralni bijeli gumb) */
button,
input[type="submit"],
.btn,
a.btn {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}
button:hover,
.btn:hover,
a.btn:hover,
input[type="submit"]:hover {
  background: #f9fafb;
}

/* aktivni efekt klik */
button:active,
.btn:active,
a.btn:active,
input[type="submit"]:active {
  transform: translateY(1px);
}

/* onemogućeni gumbi */
button:disabled,
input[type="submit"]:disabled,
.btn:disabled {
  opacity: .55;
  cursor: not-allowed;
}

/* ===== VARIJANTE BOJA ===== */

/* primarni (plavi) */
.btn-primary,
button.btn-primary,
input[type="submit"].btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover,
button.btn-primary:hover,
input[type="submit"].btn-primary:hover {
  background: var(--primary-hover);
}

/* uspjeh (zeleni) */
.btn-success { background: var(--success); color: #fff; border:none; }
.btn-success:hover { background: #15803d; }

/* opasnost (crveni) */
.btn-danger { background: var(--danger); color: #fff; border:none; }
.btn-danger:hover { background: #b91c1c; }

/* upozorenje (žuti) */
.btn-warning { background: var(--warning); color: #111; border:none; }
.btn-warning:hover { background: #fbbf24; }

/* informacija (cijan) */
.btn-info { background: var(--info); color: #fff; border:none; }
.btn-info:hover { background: #0e7490; }

/* male i okrugle varijante */
.btn-small { height: 32px; font-size: 13px; padding: 0 10px; border-radius: 8px; }
.btn-round { border-radius: 999px; }

/* stretch varijanta (npr. unutar formi 100%) */
.btn-block { display: flex; width: 100%; }

/* ikonice u gumbu (ako koristiš SVG ili emoji) */
.btn i, .btn span.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}