:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --accent: #2eb8b8;         
  --accent-2: #1f8f8f;       
  --muted: #6b7280;
  --success: #16a34a;
  --danger: #dc2626;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

html, body {
  height: 100%;
  margin: 0;
  background: linear-gradient(180deg, #eafafc 0%, var(--bg) 100%);
  color: #0f172a;
}

/* ===== HEADER ===== */
header {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--card);
  box-shadow: 0 6px 18px rgba(12, 24, 60, 0.08);
  z-index: 50;
  gap: 12px;
}
header .left { display: flex; align-items: center; gap: 12px; }
header img { height: 100px; width: 220px; object-fit: contain; border-radius: 6px; }
header h1 { font-size: 18px; margin: 0; letter-spacing: 0.4px; }
header .timer {
  font-weight: 700;
  color: var(--accent);
  background: linear-gradient(90deg, rgba(46,184,184,0.1), transparent);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
}

.spacer { height: 92px; }

/* ===== MAIN CONTAINER ===== */
.container {
  max-width: 980px;
  margin: 18px auto;
  padding: 20px;
  background: transparent;
}

.card {
  background: var(--card);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(12, 24, 60, 0.06);
  margin-bottom: 18px;
}

/* ===== PROGRESS BAR ===== */
.progress-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.progress {
  flex: 1;
  height: 10px;
  background: #e0f7f7;
  border-radius: 12px;
  overflow: hidden;
  margin-right: 12px;
}
.progress > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  width: 0%;
}
.page-info { min-width: 120px; text-align: right; color: var(--muted); font-size: 13px; }




/* ===== QUESTIONS ===== */
.questions-list { display: grid; gap: 14px; }
.question {
  border-radius: 10px;
  padding: 12px;
  background: linear-gradient(180deg, rgba(240,255,255,0.9), #fff);
  border: 1px solid rgba(15,23,42,0.04);
}
.question p { margin: 0 0 8px 0; font-weight: 700; }
.passage {
  font-size: 14px;
  margin-bottom: 8px;
  color: #111827;
  background: #f0fcfc;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(2,6,23,0.03);
}

.options label {
  display: block;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 6px;
  border: 1px solid transparent;
}
.options input[type="radio"] { margin-right: 8px; }
.options label:hover {
  background: #f1fcfc;
  border-color: rgba(46,184,184,0.2);
}
.options label.selected {
  background: linear-gradient(90deg, rgba(46,184,184,0.08), transparent);
  border: 1px solid rgba(46,184,184,0.25);
}
/* certain level */
.certainty {
  margin-top: 10px;
}

.certainty label {
  display: inline-block;       
  padding: 8px 12px;
  margin-right: 8px;           
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.certainty label:hover {
  background: #f1fcfc;
  border-color: rgba(46,184,184,0.2);
}

.certainty label.selected {
  background: linear-gradient(90deg, rgba(46,184,184,0.08), transparent);
  border: 1px solid rgba(46,184,184,0.25);
}





/* ===== FEEDBACK ===== */
.feedback { margin-top: 8px; font-weight: 700; }
.feedback.correct { color: var(--success); }
.feedback.wrong { color: var(--danger); font-weight: 700; }

/* ===== CONTROLS ===== */
.controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}
.controls .left, .controls .right {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ===== BUTTONS ===== */
button.btn {
  padding: 10px 14px;
  border-radius: 10px;
  border: 0;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(12, 24, 60, 0.06);
  transition: all 0.3s ease;
}

/* Ghost Button (Clean Final Version) */
button.btn.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid rgba(15,23,42,0.10);
  transition: all 0.3s ease;
}

button.btn.ghost:hover {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: white !important;
  transform: scale(1.05);
  border-color: var(--accent-2);
  box-shadow: 0 0 12px rgba(46,184,184,0.6);
}


/* Warn Button (Submit / Auto-submit) */
button.btn.warn {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: white;
}

button.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.page-nav { display: flex; gap: 8px; align-items: center; }

/* ===== SUMMARY ===== */
.summary {
  padding: 14px;
  border-radius: 10px;
  background: #e8fdfd;
  border: 1px solid rgba(46,184,184,0.25);
  color: #047c7c;
  font-weight: 700;
}


/* ===== RESULT AREA (Circular Chart) ===== */
.result-area {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}

.circle-wrap {
  width: 160px;
  height: 160px;
  display: grid;
  place-items: center;
  position: relative;
}

.circle-percent {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: var(--accent, #2563eb);
}

.chart-desc {
  font-size: 14px;
  color: var(--muted, #666);
  max-width: 560px;
}

/* Ensure both cards are visually identical */
#resultBox.card, 
#levelResultBox.card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

/* Equal circle alignment fix */
#resultBox .circle-wrap svg,
#levelResultBox .circle-wrap svg {
  width: 160px;
  height: 160px;
}

/* Optional color tweak for CEFR */
#levelResultBox .circle-percent {
  color: #2563eb;
}


/* ===== DOWNLOAD BUTTON ===== */
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;

  padding: 12px 26px;

  background: var(--accent, #2eb8b8);
  color: #fff;

  border: none;
  border-radius: 12px;
  
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;

  box-shadow: 0 3px 10px rgba(0,0,0,0.08);
  transition: all 0.25s ease;
}

/* Hover effect: darker tone + slight lift */
.download-btn:hover {
  background: var(--accent-2, #1f8f8f);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.12);
}

/* Click effect */
.download-btn:active {
  transform: translateY(0px);
  box-shadow: 0 3px 10px rgba(0,0,0,0.09);
}

/* Optional: Download icon style */
.download-btn svg {
  width: 18px;
  height: 18px;
  stroke: #fff;
}


/* ===== MODAL (Responsive for Minimize Alert) ===== */
.modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background: rgba(0, 0, 0, 0.6);
  justify-content: center;
  align-items: center;
}

.modal-content {
  width: 90%;
  max-width: 420px;
  margin: 0 auto;
  background: white;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.modal-content h3 {
  margin-bottom: 8px;
  color: var(--accent);
  font-weight: 700;
}
.modal-content p { color: #555; margin-bottom: 16px; }

.modal-content div[style*="display:flex"] {
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
}
.result-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 15px;
}



@media (min-width: 480px) {
  .modal-content div[style*="display:flex"] {
    flex-direction: row;
    justify-content: flex-end;
  }
}

/* ===== RESPONSIVE FIX ===== */
@media (max-width: 720px) {
  header { height: 80px; padding: 12px; }
  .container { padding: 12px; }
  .controls { flex-direction: column; align-items: stretch; }
  .progress-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  header h1 { font-size: 16px; }
  .result-area { justify-content: center; }
}