/* ============================================================
   SPORTSKI KVIZ — Shared Styles
   Zajednički stilovi za sve kviz template fajlove.
   ============================================================ */

/* ── CSS Varijable ─────────────────────────────────────── */
:root {
  /* Boje */
  --c-blue-dark:    #1e3a8a;
  --c-blue:         #1e40af;
  --c-blue-mid:     #2563eb;
  --c-blue-light:   #3b82f6;
  --c-red:          #dc2626;
  --c-red-light:    #ef4444;
  --c-yellow:       #facc15;
  --c-yellow-dark:  #f59e0b;
  --c-green:        #22c55e;
  --c-green-dark:   #16a34a;

  /* Glass efekti */
  --glass-bg:       rgba(255, 255, 255, 0.10);
  --glass-bg-hover: rgba(255, 255, 255, 0.15);
  --glass-border:   rgba(255, 255, 255, 0.20);
  --glass-blur:     blur(12px);

  /* Sjene */
  --shadow-sm:  0 4px 15px rgba(0, 0, 0, 0.20);
  --shadow-md:  0 10px 30px rgba(0, 0, 0, 0.30);
  --shadow-lg:  0 20px 60px rgba(0, 0, 0, 0.40);
  --shadow-xl:  0 30px 80px rgba(0, 0, 0, 0.50);

  /* Prijelazi */
  --t-fast:   0.15s ease;
  --t-base:   0.25s ease;
  --t-slow:   0.40s ease;

  /* Zaobljenja */
  --r-sm:  8px;
  --r-md:  12px;
  --r-lg:  20px;
  --r-xl:  28px;
}

/* ── Tijelo stranice ───────────────────────────────────── */
body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, var(--c-blue-dark) 0%, var(--c-blue) 50%, var(--c-red) 100%);
  min-height: 100vh;
  color: white;
}

/* ── Glass kartice ─────────────────────────────────────── */
.glass-card,
.main-container,
.quiz-container,
.stat-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}

/* ── Feedback za odgovore ──────────────────────────────── */
.correct {
  background-color: var(--c-green) !important;
  border-color:     var(--c-green-dark) !important;
  color: white !important;
  transform: scale(1.02);
}

.incorrect {
  background-color: var(--c-red-light) !important;
  border-color:     var(--c-red) !important;
  color: white !important;
}

/* ── Dugmad za opcije kviza ────────────────────────────── */
.option-btn {
  transition: all var(--t-base);
  background-color: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--glass-border);
  padding: 1rem;
  border-radius: var(--r-sm);
  font-weight: 600;
  color: white;
  width: 100%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60px;
  text-align: center;
}

.option-btn:hover:not(:disabled):not(.correct):not(.incorrect) {
  background-color: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.45);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.option-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}

.option-btn:disabled {
  cursor: not-allowed;
  opacity: 0.75;
}

.option-btn:focus-visible {
  outline: 2px solid var(--c-yellow);
  outline-offset: 2px;
}

/* ── Progress bar ──────────────────────────────────────── */
.progress-bar-inner {
  background-color: var(--c-yellow);
  height: 100%;
  border-radius: 999px;
  transition: width 0.35s ease;
}

/* ── Primarna dugmad ───────────────────────────────────── */
.btn-primary {
  background: linear-gradient(135deg, var(--c-blue-mid), var(--c-blue));
  color: white;
  font-weight: 700;
  border: none;
  border-radius: var(--r-md);
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  transition: all var(--t-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--c-blue-light), var(--c-blue-mid));
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-accent {
  background: var(--c-yellow);
  color: #1e3a8a;
  font-weight: 700;
  border: none;
  border-radius: var(--r-md);
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  transition: all var(--t-base);
}

.btn-accent:hover {
  background: var(--c-yellow-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ── Animacije ─────────────────────────────────────────── */
@keyframes slideInUp {
  from { opacity: 0; transform: translateY(30px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0)    scale(1);    }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes shake {
  0%, 100% { transform: translateX(0);  }
  25%       { transform: translateX(-6px); }
  75%       { transform: translateX(6px);  }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 10px rgba(250, 204, 21, 0.3); }
  50%       { box-shadow: 0 0 28px rgba(250, 204, 21, 0.75); }
}

@keyframes float-up-fade {
  0%   { opacity: 1; transform: translate(-50%, 0);    }
  100% { opacity: 0; transform: translate(-50%, -50px); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar       { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); border-radius: 3px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.40); }

/* ── Focus za pristupačnost ────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--c-yellow);
  outline-offset: 2px;
}

/* ── Flash poruke ──────────────────────────────────────── */
.flash-success { background: rgba(34, 197, 94, 0.20); border: 1px solid var(--c-green); color: #bbf7d0; }
.flash-error   { background: rgba(239, 68, 68, 0.20);  border: 1px solid var(--c-red-light); color: #fecaca; }

/* ── Utility ───────────────────────────────────────────── */
.text-accent   { color: var(--c-yellow); }
.text-muted    { color: rgba(255, 255, 255, 0.55); }
.text-success  { color: var(--c-green); }
.text-danger   { color: var(--c-red-light); }
.animate-slide-in { animation: slideInUp 0.45s ease forwards; }
.animate-fade-in  { animation: fadeIn 0.3s ease forwards; }