/* ── KarenTang Quiz v1 – Frontend Styles ─────────────────────── */

:root {
  --ktq-primary: #2563eb;
  --ktq-accent:  #f59e0b;
  --ktq-bg:      #ffffff;
  --ktq-text:    #1a1a2e;
  --ktq-muted:   #6b7280;
  --ktq-border:  #e5e7eb;
  --ktq-radius:  14px;
  --ktq-shadow:  0 8px 40px rgba(0,0,0,0.10);
}

/* ── Wrapper ───────────────────────────────────────────────── */
.ktq-wrapper {
  position: relative;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  background: var(--ktq-bg);
  border-radius: var(--ktq-radius);
  box-shadow: var(--ktq-shadow);
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 480px;
}

/* ── Progress ──────────────────────────────────────────────── */
.ktq-progress-bar {
  height: 5px;
  background: var(--ktq-border);
  width: 100%;
}
.ktq-progress-fill {
  height: 100%;
  background: var(--ktq-primary);
  transition: width 0.5s cubic-bezier(.4,0,.2,1);
}
.ktq-progress-label {
  font-size: 12px;
  color: var(--ktq-muted);
  padding: 10px 32px 0;
  letter-spacing: 0.04em;
}

/* ── Slides ────────────────────────────────────────────────── */
.ktq-slides {
  position: relative;
  overflow: hidden;
}
.ktq-slide {
  display: none;
  padding: 36px 40px 32px;
  animation: ktq-fade-in 0.4s ease;
}
.ktq-slide.ktq-active {
  display: block;
}
@keyframes ktq-fade-in {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes ktq-slide-left {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes ktq-slide-right {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}
.ktq-slide.ktq-enter-left  { animation: ktq-slide-left  0.35s ease; }
.ktq-slide.ktq-enter-right { animation: ktq-slide-right 0.35s ease; }

/* ── Question Image ────────────────────────────────────────── */
.ktq-q-image {
  margin-bottom: 20px;
  border-radius: 10px;
  overflow: hidden;
  max-height: 260px;
}
.ktq-q-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── Question Text ─────────────────────────────────────────── */
.ktq-q-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--ktq-text);
  line-height: 1.4;
  margin: 0 0 24px;
}

/* ── Options ───────────────────────────────────────────────── */
.ktq-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}
.ktq-options input[type="radio"],
.ktq-options input[type="checkbox"] {
  display: none;
}
.ktq-option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 2px solid var(--ktq-border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  position: relative;
  background: #fff;
}
.ktq-option:hover {
  border-color: var(--ktq-primary);
  background: #f0f4ff;
  transform: translateY(-1px);
}
.ktq-option.ktq-selected {
  border-color: var(--ktq-primary);
  background: #eff6ff;
}
.ktq-opt-check {
  display: none;
  margin-left: auto;
  color: var(--ktq-primary);
  font-size: 16px;
  font-weight: 700;
}
.ktq-option.ktq-selected .ktq-opt-check {
  display: block;
}
.ktq-opt-label {
  font-size: 15px;
  font-weight: 500;
  color: var(--ktq-text);
  flex: 1;
}

/* ── Image Choice Layout ───────────────────────────────────── */
.ktq-type-image .ktq-options {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}
.ktq-type-image .ktq-option {
  flex-direction: column;
  align-items: stretch;
  padding: 0;
  border-radius: 10px;
  overflow: hidden;
}
.ktq-opt-img-wrap {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.ktq-opt-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s;
}
.ktq-option:hover .ktq-opt-img-wrap img {
  transform: scale(1.04);
}
.ktq-type-image .ktq-opt-label {
  padding: 10px 12px;
  font-size: 13px;
  text-align: center;
}
.ktq-type-image .ktq-opt-check {
  position: absolute;
  top: 8px; right: 8px;
  background: var(--ktq-primary);
  color: #fff;
  width: 24px; height: 24px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}
.ktq-type-image .ktq-option.ktq-selected .ktq-opt-check {
  display: flex;
}

/* ── Nav ───────────────────────────────────────────────────── */
.ktq-nav {
  display: flex;
  gap: 12px;
  align-items: center;
}
.ktq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  letter-spacing: 0.01em;
}
.ktq-btn-next,
.ktq-btn-submit,
.ktq-btn-lead-submit {
  background: var(--ktq-primary);
  color: #fff;
}
.ktq-btn-next:hover:not(:disabled),
.ktq-btn-submit:hover:not(:disabled),
.ktq-btn-lead-submit:hover {
  background: color-mix(in srgb, var(--ktq-primary) 85%, #000);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(37,99,235,0.35);
}
.ktq-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
}
.ktq-btn-back {
  background: transparent;
  color: var(--ktq-muted);
  border: 1px solid var(--ktq-border);
}
.ktq-btn-back:hover {
  border-color: var(--ktq-primary);
  color: var(--ktq-primary);
}
.ktq-btn-restart {
  background: transparent;
  color: var(--ktq-primary);
  border: 2px solid var(--ktq-primary);
  margin-top: 20px;
}
.ktq-btn-restart:hover {
  background: var(--ktq-primary);
  color: #fff;
}

/* ── Lead Form ─────────────────────────────────────────────── */
.ktq-lead-sub {
  color: var(--ktq-muted);
  font-size: 15px;
  margin: 0 0 24px;
}
.ktq-lead-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 460px;
}
.ktq-input-wrap { position: relative; }
.ktq-input {
  width: 100%;
  padding: 14px 16px;
  font-size: 15px;
  border: 2px solid var(--ktq-border);
  border-radius: 9px;
  outline: none;
  transition: border-color 0.2s;
  background: #fafafa;
  box-sizing: border-box;
  font-family: inherit;
  color: var(--ktq-text);
}
.ktq-input:focus {
  border-color: var(--ktq-primary);
  background: #fff;
}
.ktq-input.ktq-invalid {
  border-color: #ef4444;
}
.ktq-privacy {
  font-size: 12px;
  color: var(--ktq-muted);
  margin: 0;
}
.ktq-error-msg {
  color: #ef4444;
  font-size: 13px;
  font-weight: 500;
  padding: 10px 14px;
  background: #fef2f2;
  border-radius: 7px;
  border: 1px solid #fecaca;
}

/* ── Results ───────────────────────────────────────────────── */
.ktq-results-inner {
  text-align: center;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ktq-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--ktq-muted);
}
.ktq-spinner {
  width: 44px; height: 44px;
  border: 4px solid var(--ktq-border);
  border-top-color: var(--ktq-primary);
  border-radius: 50%;
  animation: ktq-spin 0.8s linear infinite;
}
@keyframes ktq-spin {
  to { transform: rotate(360deg); }
}
.ktq-result-content {
  width: 100%;
  animation: ktq-fade-in 0.5s ease;
}
.ktq-success-msg {
  font-size: 14px;
  color: #16a34a;
  font-weight: 600;
  background: #f0fdf4;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid #bbf7d0;
  margin-bottom: 24px;
  display: inline-block;
}
.ktq-result-card {
  background: linear-gradient(135deg, #f8faff 0%, #eff6ff 100%);
  border: 2px solid var(--ktq-border);
  border-radius: 14px;
  padding: 32px 28px;
  text-align: left;
}
.ktq-result-img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 18px;
}
.ktq-result-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--ktq-text);
  margin: 0 0 12px;
}
.ktq-result-desc {
  font-size: 15px;
  color: var(--ktq-muted);
  line-height: 1.65;
  margin: 0;
}

/* ── Mobile ────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .ktq-slide { padding: 24px 20px 22px; }
  .ktq-q-text { font-size: 18px; }
  .ktq-type-image .ktq-options { grid-template-columns: 1fr 1fr; }
  .ktq-btn { padding: 12px 20px; font-size: 14px; }
}