/* style.css — clean-minimal theme. Neutral surround so visuals don't bias likeability. */

:root {
  --bg: #F7F6F3;
  --card: #FFFFFF;
  --text: #2A2A2A;
  --muted: #6B7280;
  --faint: #9A9A9A;
  --btn: #3A3A3A;
  --btn-hover: #555555;
  --border: #E6E4DF;
  --accent: #4F5B66;
  --img-px: 300px;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

/* jsPsych mounts content here; give it a calm, centered card. */
.jspsych-display-element { display: flex; align-items: center; justify-content: center; }

.jspsych-content-wrapper { display: flex; align-items: center; justify-content: center; }

.jspsych-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 48px;
  animation: fadeIn 0.16s ease;
}

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

/* Readable instruction prose (left-aligned within centered card). */
.instr { text-align: left; }
.instr h1, .instr h2 { font-weight: 600; letter-spacing: -0.01em; }
.instr p { margin: 0.8em 0; }
.instr .key { font-weight: 600; color: var(--accent); white-space: nowrap; }
.lead { color: var(--muted); }

/* Stimulus image, centered, with neutral surround. */
.stim-wrap { position: relative; display: inline-block; width: var(--img-px); height: var(--img-px); }
.stim-img {
  width: var(--img-px); height: var(--img-px);
  object-fit: contain; display: block;
  border-radius: 6px;
}

/* Gray cover dot overlaid on a stimulus. */
.cover-dot {
  position: absolute;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #7d7d7d;
  pointer-events: none;
}

/* Reward / no-reward outcome icon. */
.outcome-wrap { display: flex; align-items: center; justify-content: center; min-height: var(--img-px); }
.outcome-img { width: 180px; height: 180px; object-fit: contain; }

/* Fixation cross. */
.fixation {
  font-size: 40px; color: var(--faint); font-weight: 400;
  display: flex; align-items: center; justify-content: center; min-height: var(--img-px);
}

.too-slow { color: #cc3333; font-size: 28px; font-weight: 700; min-height: var(--img-px);
  display: flex; align-items: center; justify-content: center; }

/* Cloudflare Turnstile bot check. */
.turnstile-page { text-align: center; padding: 40px 0; }
.turnstile-widget, #turnstile-container { display: flex; justify-content: center; margin-bottom: 16px; }
.turnstile-status { font-size: 15px; min-height: 22px; color: var(--muted); }
.turnstile-success { color: #3a7d4f; }
.turnstile-fail { color: #b04a4a; }

/* ---- buttons ---- */
.jspsych-btn {
  background: var(--btn);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 22px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s ease, opacity 0.12s ease;
  margin: 6px;
}
.jspsych-btn:hover { background: var(--btn-hover); }
.jspsych-btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ---- decision 2AFC ---- */
.dec-prompt {
  font-size: 22px; font-weight: 600; margin-bottom: 8px;
  transition: color 0.15s ease, opacity 0.15s ease;
}
.dec-prompt.locked { color: var(--faint); opacity: 0.7; }
.dec-sub { color: var(--muted); font-size: 15px; margin-bottom: 28px; min-height: 1.2em; }

/* jsPsych renders the choice buttons inside .jspsych-html-button-response-btngroup */
#jspsych-html-button-response-btngroup,
.jspsych-html-button-response-btngroup {
  display: flex; justify-content: center; gap: 64px; flex-wrap: nowrap;
}
.choice-btn {
  background: var(--card) !important;
  border: 2px solid var(--border) !important;
  border-radius: 12px !important;
  padding: 14px !important;
  margin: 0 !important;
  transition: border-color 0.12s ease, transform 0.08s ease, box-shadow 0.12s ease;
}
.choice-btn:not(:disabled):hover {
  border-color: var(--accent) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}
.choice-btn:disabled { opacity: 0.92 !important; cursor: default; }
.choice-img { width: 240px; height: 240px; object-fit: contain; display: block; border-radius: 6px; }

/* non-interactive preview row (matches the clickable choice layout) */
.dec-row { display: flex; justify-content: center; gap: 64px; }
.dec-frame { border: 2px solid transparent; border-radius: 12px; padding: 14px; }

/* ---- rating slider ---- */
.rate-img { width: var(--img-px); height: var(--img-px); object-fit: contain; display: block; margin: 0 auto 22px; border-radius: 6px; }
.rate-q { font-size: 19px; font-weight: 500; margin-bottom: 8px; }

/* Continuous range slider — visible on the light card (dark track, blue marker, like the lab). */
.jspsych-content input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  height: 8px;
  border-radius: 4px;
  background: #6B7280;            /* medium-dark track, clearly visible on #FFF card */
  outline: none;
  cursor: pointer;
  margin: 18px 0 8px;
}
.jspsych-content input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: #3b5bdb;            /* blue marker (in-lab marker color) */
  border: 2px solid #FFFFFF;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  margin-top: -8px;              /* center 24px thumb on 8px track */
}
.jspsych-content input[type=range]::-moz-range-track {
  height: 8px; border-radius: 4px; background: #6B7280;
}
.jspsych-content input[type=range]::-moz-range-thumb {
  width: 24px; height: 24px; border-radius: 50%;
  background: #3b5bdb; border: 2px solid #FFFFFF;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.3); cursor: pointer;
}
/* slider anchor labels rendered by jsPsych */
.jspsych-slider-label { color: var(--muted); font-size: 14px; }

/* ---- progress bar (subtle) ---- */
#jspsych-progressbar-container {
  background: transparent;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  padding: 8px 0;
}
#jspsych-progressbar-inner { background: var(--accent); }

/* ---- comprehension feedback ---- */
.comp-q { font-size: 19px; font-weight: 500; text-align: left; margin-bottom: 18px; }
.comp-retry { color: #b04a4a; margin-bottom: 14px; }

/* continue hint */
.continue-hint { color: var(--muted); font-size: 14px; margin-top: 26px; }