/* ─────────────────────────────────────────
   STROOP TASK — PREMIUM REDESIGN
   Dual-mode (dark/light), one-per-screen
   demographics wizard, card chips,
   RTL slide animations, IG-style progress bar
───────────────────────────────────────── */

/* ── Google Font: Heebo ── */
@import url('https://fonts.googleapis.com/css2?family=Heebo:wght@300;400;500;600;700;800;900&display=swap');

/* ══════════════════════════════════════════
   DESIGN TOKENS — DARK MODE (default)
══════════════════════════════════════════ */
:root {
  /* Backgrounds */
  --bg:         #0d1117;
  --bg-card:    #161b27;
  --bg-card2:   #1d2235;
  --bg-glass:   rgba(22, 27, 39, 0.85);

  /* Borders */
  --border:     rgba(255, 255, 255, 0.07);
  --border-md:  rgba(255, 255, 255, 0.12);

  /* Text */
  --text:       #e9ecf4;
  --text-dim:   #8d93b0;
  --text-muted: rgba(141, 147, 176, 0.55);

  /* Accent — periwinkle blue */
  --accent:         #7c9ef5;
  --accent-dark:    #5a7de0;
  --accent-light:   #a5beff;
  --accent-glow:    rgba(124, 158, 245, 0.22);
  --accent-glow-md: rgba(124, 158, 245, 0.40);

  /* Gradient accent (for progress bar, highlights) */
  --grad-accent: linear-gradient(90deg, #7c9ef5, #a78bfa);
  --grad-btn:    linear-gradient(135deg, #5a7de0 0%, #7c9ef5 100%);

  /* Semantic colors (Stroop task + UI) */
  --red:     #e05252;
  --blue:    #5272e0;
  --green:   #52b46b;
  --yellow:  #e8c000;

  --correct:   #56c479;
  --incorrect: #e05252;

  /* Shape */
  --radius:    20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --radius-xs: 8px;

  /* Shadows */
  --shadow:    0 32px 80px rgba(0, 0, 0, 0.7);
  --shadow-sm: 0 4px 24px rgba(0, 0, 0, 0.35);
  --shadow-accent: 0 8px 32px rgba(124, 158, 245, 0.25);

  /* Typography */
  --font: 'Heebo', 'Arial Hebrew', Arial, sans-serif;

  /* Timing */
  --transition: 0.22s ease;
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ══════════════════════════════════════════
   DESIGN TOKENS — LIGHT MODE
══════════════════════════════════════════ */
@media (prefers-color-scheme: light) {
  :root {
    --bg:         #eef1f9;
    --bg-card:    #ffffff;
    --bg-card2:   #f4f6fd;
    --bg-glass:   rgba(255, 255, 255, 0.9);

    --border:     rgba(0, 0, 0, 0.07);
    --border-md:  rgba(0, 0, 0, 0.12);

    --text:       #1a1d2e;
    --text-dim:   #5c6280;
    --text-muted: rgba(92, 98, 128, 0.55);

    --accent:         #4f6ef7;
    --accent-dark:    #3656d6;
    --accent-light:   #7c9ef5;
    --accent-glow:    rgba(79, 110, 247, 0.15);
    --accent-glow-md: rgba(79, 110, 247, 0.30);

    --grad-accent: linear-gradient(90deg, #4f6ef7, #7c5ef5);
    --grad-btn:    linear-gradient(135deg, #3656d6 0%, #4f6ef7 100%);

    --yellow: #b08800;

    --shadow:    0 32px 80px rgba(0, 0, 0, 0.12);
    --shadow-sm: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-accent: 0 8px 32px rgba(79, 110, 247, 0.20);
  }
}

/* ══════════════════════════════════════════
   RESET & BASE
══════════════════════════════════════════ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  direction: rtl;
  text-align: right;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  user-select: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ══════════════════════════════════════════
   INSTAGRAM-STORIES PROGRESS BAR (Form)
══════════════════════════════════════════ */
.story-bar-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 3px;
  background: var(--border);
  display: none; /* shown only on demographics screen */
}

.story-bar-fill {
  height: 100%;
  background: var(--grad-accent);
  border-radius: 0 99px 99px 0;
  transition: width 0.45s var(--ease-out);
  width: 0%;
}

/* Step label beneath story bar */
.step-label-bar {
  position: fixed;
  top: 10px;
  left: 0;
  right: 0;
  z-index: 99;
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
}

.step-label-bar .step-text {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  text-transform: uppercase;
}

.step-label-bar .step-back-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-dim);
  font-size: 1.1rem;
  padding: 4px 8px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
  font-family: var(--font);
}

.step-label-bar .step-back-btn:hover {
  color: var(--text);
  background: var(--bg-card2);
}

/* ══════════════════════════════════════════
   SCREENS
══════════════════════════════════════════ */
.screen {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}

.screen.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

/* Scrollable info screens */
#screen-intro,
#screen-demographics,
#screen-onboarding,
#screen-transition,
#screen-complete {
  align-items: flex-start;
  overflow-y: auto;
  padding-top: 48px;
}

/* ══════════════════════════════════════════
   CARD — Premium Glass Look
══════════════════════════════════════════ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 48px;
  max-width: 560px;
  width: 100%;
  box-shadow: var(--shadow);
  animation: cardIn 0.45s var(--spring) both;
  margin: auto;
  position: relative;
  overflow: hidden;
}

/* Subtle top-edge shimmer */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-md), transparent);
}

.wide-card {
  max-width: 680px;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── Logo Badge ── */
.logo-badge {
  font-size: 48px;
  text-align: center;
  margin-bottom: 16px;
  filter: drop-shadow(0 4px 16px rgba(124, 158, 245, 0.3));
}

/* ══════════════════════════════════════════
   TYPOGRAPHY
══════════════════════════════════════════ */
h1 {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  letter-spacing: -0.5px;
  color: var(--text);
  line-height: 1.2;
}

h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.subtitle {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.93rem;
  margin-top: 6px;
  margin-bottom: 4px;
  font-weight: 400;
}

p {
  line-height: 1.75;
  color: var(--text-dim);
  font-size: 0.97rem;
}

strong {
  color: var(--text);
  font-weight: 600;
}

/* ══════════════════════════════════════════
   DIVIDER
══════════════════════════════════════════ */
.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
  position: relative;
}

/* ══════════════════════════════════════════
   CONSENT TEXT BLOCK
══════════════════════════════════════════ */
.consent-text-block {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.consent-text-block p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0;
}

/* ══════════════════════════════════════════
   QUESTION CARD (Demographics Wizard)
══════════════════════════════════════════ */
.question-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

.question-label {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1.4;
  display: block;
}

.question-sublabel {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: -12px;
  margin-bottom: 16px;
  font-weight: 400;
}

/* ══════════════════════════════════════════
   CARD CHIPS — Large Tap-Friendly Choice Cards
══════════════════════════════════════════ */
.chip-grid {
  display: grid;
  gap: 10px;
}

.chip-grid.cols-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.chip-grid.cols-2 {
  grid-template-columns: 1fr 1fr;
}

.chip-grid.cols-1 {
  grid-template-columns: 1fr;
}

.card-chip {
  cursor: pointer;
  user-select: none;
}

.card-chip input[type="radio"] {
  display: none;
}

.lang-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
  margin-left: 6px;
}
.bg-hebrew { background-color: var(--blue); }
.bg-arabic { background-color: var(--green); }
.bg-russian { background-color: var(--red); }
.bg-english { background-color: #8b5cf6; } /* purple */
.bg-amharic { background-color: #f59e0b; } /* amber */
.bg-french { background-color: #14b8a6; } /* teal */
.bg-spanish { background-color: #ec4899; } /* pink */
.bg-other { background-color: var(--text-dim); } /* gray */

.card-chip-inner {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-md);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 0.97rem;
  font-weight: 500;
  font-family: var(--font);
  transition:
    background 0.2s var(--ease-out),
    border-color 0.2s var(--ease-out),
    color 0.2s var(--ease-out),
    transform 0.18s var(--spring),
    box-shadow 0.2s ease;
  cursor: pointer;
  text-align: right;
  min-height: 56px;
}

.watermark-code {
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--text-dim);
  opacity: 0.08;
  pointer-events: none;
  font-family: system-ui, sans-serif;
  letter-spacing: -2px;
  line-height: 1;
}

.card-chip-inner .chip-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.card-chip-inner .chip-text {
  flex: 1;
  line-height: 1.3;
}

/* Hover */
.card-chip:hover .card-chip-inner {
  background: var(--bg-card2);
  border-color: var(--accent);
  color: var(--text);
}

/* Selected state */
.card-chip input[type="radio"]:checked + .card-chip-inner {
  background: var(--bg-card);
  border-color: transparent;
  color: var(--text-base);
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
}

.card-chip input[type="radio"]:checked + .card-chip-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px; /* thickness of the gradient border */
  background: linear-gradient(135deg, #a855f7, #f97316); /* Purple to Orange */
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

/* Tap animation */
.card-chip:active .card-chip-inner {
  transform: scale(0.96);
}

/* Pop animation on select */
@keyframes chipPop {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.04); }
  70%  { transform: scale(0.97); }
  100% { transform: scale(1); }
}

.card-chip input[type="radio"]:checked + .card-chip-inner {
  animation: chipPop 0.3s var(--spring) both;
}

/* ══════════════════════════════════════════
   DEMOGRAPHICS WIZARD SLIDE ANIMATION
══════════════════════════════════════════ */
.wizard-slide-host {
  overflow: hidden;
  position: relative;
}

/* Question wrapper that slides in/out */
.q-slide {
  animation-duration: 0.38s;
  animation-fill-mode: both;
  animation-timing-function: var(--ease-out);
}

/* RTL: "next" comes from the left, "prev" comes from the right */
@keyframes slideInFromLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideInFromRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideOutToRight {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(40px); }
}

@keyframes slideOutToLeft {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(-40px); }
}

.q-slide.enter-next  { animation-name: slideInFromLeft; }
.q-slide.enter-prev  { animation-name: slideInFromRight; }

/* ══════════════════════════════════════════
   ACCORDION — Consent Screen
══════════════════════════════════════════ */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.accordion-item {
  border: 1px solid var(--border-md);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.accordion-item.open {
  border-color: var(--accent);
}

.accordion-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  background: var(--bg-card2);
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  text-align: right;
  transition: background 0.2s ease;
  gap: 10px;
}

.accordion-toggle:hover {
  background: var(--bg-card);
}

.accordion-item.open .accordion-toggle {
  background: var(--accent-glow);
  color: var(--accent-light);
}

.accordion-icon {
  font-size: 0.8rem;
  color: var(--text-dim);
  transition: transform 0.3s var(--ease-out);
  flex-shrink: 0;
}

.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
  color: var(--accent);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out);
}

.accordion-item.open .accordion-body {
  max-height: 600px;
}

.accordion-content {
  padding: 16px 18px 20px;
  background: var(--bg-card);
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

.accordion-content p {
  margin-bottom: 10px;
}

.accordion-content p:last-child {
  margin-bottom: 0;
}

/* ══════════════════════════════════════════
   INSTRUCTIONS BLOCK (unchanged, refined)
══════════════════════════════════════════ */
.instructions-block {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ══════════════════════════════════════════
   INFO BOX
══════════════════════════════════════════ */
.info-box {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-dim);
}

.info-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ══════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 32px;
  border-radius: 50px;
  font-family: var(--font);
  font-size: 1.05rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.2px;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--grad-btn);
  color: #fff;
  box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 12px 36px rgba(124, 158, 245, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  filter: brightness(0.95);
  transform: translateY(0) scale(0.98);
  box-shadow: none;
}

.btn-primary:disabled {
  background: var(--bg-card2);
  color: var(--text-muted);
  box-shadow: none;
  cursor: not-allowed;
  filter: none;
  transform: none;
}

.btn-secondary {
  background: transparent;
  color: var(--text-dim);
  border: 1.5px solid var(--border-md);
}

.btn-secondary:hover {
  background: var(--bg-card2);
  color: var(--text);
  border-color: var(--border-md);
}

.btn-arrow {
  font-size: 1rem;
}

.btn-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

/* ══════════════════════════════════════════
   OLD RADIO BUTTON GROUPS (legacy, language blocks)
══════════════════════════════════════════ */
.button-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Frequency scale grid */
.freq-grid {
  display: flex;
  gap: 8px;
}

.btn-radio {
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

.btn-radio input[type="radio"] {
  display: none;
}

.btn-radio span {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  background: var(--bg-card2);
  border: 1.5px solid var(--border-md);
  border-radius: var(--radius-xs);
  color: var(--text-dim);
  transition: all 0.25s var(--spring);
  text-align: center;
  height: 100%;
  font-size: 0.95rem;
  font-family: var(--font);
  min-height: 48px;
}

.btn-radio span:active {
  transform: scale(0.94);
}

.btn-radio input[type="radio"]:checked + span {
  background: var(--bg-card);
  border-color: transparent;
  color: var(--text-base);
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
}

.btn-radio input[type="radio"]:checked + span::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(135deg, #a855f7, #f97316);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

.btn-radio span:hover {
  background: var(--bg-card);
  color: var(--text);
}

.btn-radio input[type="radio"]:checked + span:hover {
  background: var(--accent-glow);
}

/* ══════════════════════════════════════════
   FORM INPUTS
══════════════════════════════════════════ */
input[type="text"],
input[type="email"],
select {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-md);
  background: var(--bg-card);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.25s var(--ease-out);
  outline: none;
  direction: rtl;
  -webkit-appearance: none;
  appearance: none;
}

input[type="text"]::placeholder {
  color: var(--text-muted);
}

input[type="text"]:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: var(--bg-card2);
}

select option {
  background: var(--bg-card2);
  color: var(--text);
}

/* ══════════════════════════════════════════
   RANGE SLIDERS
══════════════════════════════════════════ */
.styled-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  background: transparent;
  margin: 14px 0;
  cursor: pointer;
}

.styled-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 6px;
  cursor: pointer;
  background: var(--border-md);
  border-radius: 99px;
  transition: background 0.3s ease;
}

.styled-slider:hover::-webkit-slider-runnable-track {
  background: rgba(124, 158, 245, 0.25);
}

.styled-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 28px;
  width: 28px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  margin-top: -11px;
  box-shadow: 0 0 16px var(--accent-glow-md);
  border: 2.5px solid var(--bg-card);
  transition: transform 0.2s var(--spring);
}

.styled-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.styled-slider::-webkit-slider-thumb:active {
  transform: scale(0.92);
}

.styled-slider:focus {
  outline: none;
}

/* Slider value display */
.slider-value-display {
  color: var(--accent);
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--bg-card2);
  padding: 4px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-md);
  min-width: 64px;
  text-align: center;
}

/* ══════════════════════════════════════════
   PRIVACY NOTICE CHIP
══════════════════════════════════════════ */
.privacy-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 5px 12px;
  margin: 0 auto 20px;
}

/* ══════════════════════════════════════════
   FLOW NOTE
══════════════════════════════════════════ */
.flow-note {
  font-size: 0.9rem;
  color: var(--text-dim);
  text-align: center;
  line-height: 1.6;
}

/* ══════════════════════════════════════════
   FORM SLIDE-IN ANIMATION
══════════════════════════════════════════ */
@keyframes slideUpFadeIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════
   STROOP COLOR RESPONSE BUTTONS
══════════════════════════════════════════ */
.color-btn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
}

.preview-grid {
  max-width: 340px;
  margin: 0 auto;
  gap: 10px;
}

.color-btn {
  font-family: var(--font);
  font-size: 1.25rem;
  font-weight: 800;
  padding: 20px 12px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  background: var(--bg-card2);
  cursor: pointer;
  transition:
    transform 0.13s ease,
    box-shadow 0.13s ease,
    background 0.13s ease,
    border-color 0.13s ease;
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
}

/* Per-color theming */
.color-btn[data-color="אדום"] { color: var(--red);    border-color: rgba(224, 82, 82, 0.25);  }
.color-btn[data-color="כחול"] { color: var(--blue);   border-color: rgba(82, 114, 224, 0.25); }
.color-btn[data-color="ירוק"] { color: var(--green);  border-color: rgba(82, 180, 107, 0.25); }
.color-btn[data-color="צהוב"] { color: var(--yellow); border-color: rgba(201, 176, 32, 0.25); }

/* Hover states */
.color-btn[data-color="אדום"]:hover { background: rgba(224, 82, 82, 0.1);   border-color: rgba(224, 82, 82, 0.5);  }
.color-btn[data-color="כחול"]:hover { background: rgba(82, 114, 224, 0.1);  border-color: rgba(82, 114, 224, 0.5); }
.color-btn[data-color="ירוק"]:hover { background: rgba(82, 180, 107, 0.1);  border-color: rgba(82, 180, 107, 0.5); }
.color-btn[data-color="צהוב"]:hover { background: rgba(201, 176, 32, 0.1);  border-color: rgba(201, 176, 32, 0.5); }

.color-btn:active {
  transform: translateY(1px) scale(0.97);
  box-shadow: none;
}

.color-btn:disabled {
  cursor: default;
  opacity: 0.45;
  pointer-events: none;
  font-size: 1rem;
  padding: 12px 8px;
}

.color-btn-grid.locked .color-btn {
  pointer-events: none;
  opacity: 0.35;
  transition: opacity 0.15s;
}

/* ══════════════════════════════════════════
   TRIAL SCREEN
══════════════════════════════════════════ */
#screen-trial {
  flex-direction: column;
  gap: 0;
}

/* ── Header ── */
.trial-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 16px 28px 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  background: linear-gradient(to bottom, var(--bg) 60%, transparent);
  z-index: 10;
}

.phase-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.7px;
  text-transform: uppercase;
  color: var(--text-dim);
  white-space: nowrap;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 50px;
}

.trial-counter {
  font-size: 0.83rem;
  color: var(--text-dim);
  white-space: nowrap;
  font-weight: 500;
}

.progress-bar-wrap {
  flex: 1;
  height: 3px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--grad-accent);
  border-radius: 99px;
  width: 0%;
  transition: width 0.3s var(--ease-out);
}

/* ── Fixation ── */
.fixation {
  font-size: 3.2rem;
  font-weight: 300;
  color: var(--text-dim);
  animation: fadeInScale 0.12s ease;
  letter-spacing: 0;
  margin-bottom: clamp(160px, 28vh, 240px);
}

/* ── Stimulus ── */
.stimulus {
  font-size: clamp(2.8rem, 7vw, 4.9rem);
  font-weight: 800;
  letter-spacing: -1px;
  animation: stimulusIn 0.12s ease both;
  line-height: 1;
  margin-bottom: clamp(160px, 28vh, 240px);
}

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

/* ── Feedback ── */
.feedback {
  position: fixed;
  bottom: 220px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.4rem;
  font-weight: 800;
  padding: 10px 28px;
  border-radius: 50px;
  animation: feedbackPop 0.22s var(--spring) both;
  white-space: nowrap;
  z-index: 20;
}

.feedback.correct {
  color: var(--correct);
  background: rgba(86, 196, 121, 0.12);
  border: 1px solid rgba(86, 196, 121, 0.3);
}

.feedback.incorrect {
  color: var(--incorrect);
  background: rgba(224, 82, 82, 0.12);
  border: 1px solid rgba(224, 82, 82, 0.3);
}

.feedback.timeout {
  color: #1a1a00;
  background: rgba(255, 240, 0, 0.85);
  border: 1px solid rgba(255, 240, 0, 1);
}

@keyframes feedbackPop {
  from { opacity: 0; transform: translateX(-50%) translateY(6px) scale(0.9); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
}

/* ── Response Grid (fixed to bottom) ── */
.response-grid {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(480px, calc(100vw - 32px));
  padding: 20px 16px 28px;
  background: linear-gradient(to top, var(--bg) 60%, transparent);
  z-index: 15;
}

/* ── Countdown bar ── */
.countdown-bar-wrap {
  position: fixed;
  bottom: 185px;
  left: 50%;
  transform: translateX(-50%);
  width: min(480px, calc(100vw - 32px));
  height: 2px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  z-index: 14;
}

.countdown-bar {
  height: 100%;
  width: 100%;
  background: var(--grad-accent);
  border-radius: 99px;
  transform-origin: right center;
  animation: countdownShrink 3s linear forwards;
  animation-play-state: paused;
  opacity: 0.6;
}

.countdown-bar.running {
  animation-play-state: running;
}

@keyframes countdownShrink {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* ══════════════════════════════════════════
   COMPLETION STATS
══════════════════════════════════════════ */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px;
  text-align: center;
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 4px;
  font-weight: 500;
}

/* ── Session ID note ── */
.session-id-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 16px;
  font-family: 'Courier New', monospace;
  direction: ltr;
}

/* ══════════════════════════════════════════
   LANGUAGE BLOCKS
══════════════════════════════════════════ */
.lang-block {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: var(--radius-sm);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: slideUpFadeIn 0.4s var(--spring) both;
}

.lang-block h4 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lang-remove-btn {
  background: transparent;
  border: none;
  color: var(--red);
  cursor: pointer;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.2s ease;
  font-size: 0.85rem;
  font-family: var(--font);
}

.lang-remove-btn:hover {
  background: rgba(224, 82, 82, 0.1);
}

.add-lang-btn {
  background: var(--bg-card2);
  color: var(--text-dim);
  border: 1.5px dashed var(--border-md);
  font-size: 0.95rem;
  padding: 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font);
  font-weight: 500;
  transition: all 0.2s ease;
  width: 100%;
  text-align: center;
}

.add-lang-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* ══════════════════════════════════════════
   KBD
══════════════════════════════════════════ */
kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  background: var(--bg-card2);
  border: 1px solid var(--border-md);
  border-bottom: 3px solid var(--border);
  border-radius: 6px;
  font-family: var(--font);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

/* ══════════════════════════════════════════
   UTILITIES
══════════════════════════════════════════ */
.hidden { display: none !important; }

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.6); }
  to   { opacity: 1; transform: scale(1); }
}

/* ══════════════════════════════════════════
   RESPONSIVE — TABLET (max 768px)
══════════════════════════════════════════ */
@media (max-width: 768px) {
  .card, .wide-card {
    max-width: 100%;
    margin: 20px auto;
    padding: 32px 24px;
  }

  .instructions-block {
    padding: 18px 20px;
    gap: 14px;
  }

  .preview-grid {
    max-width: 100%;
  }

  .response-grid {
    width: calc(100vw - 24px);
  }
}

/* ══════════════════════════════════════════
   RESPONSIVE — MOBILE (max 480px)
══════════════════════════════════════════ */
@media (max-width: 480px) {
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1rem; }
  p, .info-box { font-size: 0.88rem; }

  .card, .wide-card {
    padding: 24px 16px;
    border-radius: var(--radius-md);
  }

  .logo-badge { font-size: 40px; margin-bottom: 12px; }
  .divider { margin: 18px 0; }

  .instructions-block { padding: 14px 16px; gap: 12px; }
  .preview-grid { gap: 8px; }
  .color-btn:disabled { padding: 10px 6px; font-size: 0.9rem; }

  .btn { padding: 14px 20px; font-size: 1rem; }

  .trial-header {
    padding: 10px 14px 8px;
    gap: 10px;
  }

  .phase-label { font-size: 0.68rem; }
  .trial-counter { font-size: 0.78rem; }

  .stimulus {
    font-size: clamp(2.4rem, 11vw, 3.6rem);
    margin-bottom: clamp(140px, 30vh, 200px);
  }

  .fixation {
    font-size: 2.6rem;
    margin-bottom: clamp(140px, 30vh, 200px);
  }

  .feedback {
    bottom: 200px;
    font-size: 1.2rem;
    padding: 8px 20px;
  }

  .response-grid {
    width: 100vw;
    padding: 14px 12px 20px;
  }

  .color-btn-grid { gap: 8px; }

  .color-btn {
    font-size: 1.05rem;
    padding: 16px 8px;
    border-radius: var(--radius-sm);
  }

  .session-id-note { font-size: 0.68rem; }

  .chip-grid.cols-2 {
    grid-template-columns: 1fr;
  }

  .question-label { font-size: 1.05rem; }
}

/* ══════════════════════════════════════════
   RESPONSIVE — SHORT SCREENS (max-height 700px)
══════════════════════════════════════════ */
@media (max-height: 700px) {
  .card, .wide-card { margin: 28px auto; }

  .stimulus, .fixation {
    margin-bottom: clamp(120px, 22vh, 170px);
  }

  .response-grid { padding: 12px 16px 16px; }
  .color-btn { padding: 12px 8px; }
  .feedback { bottom: 170px; }
}

@media (max-height: 480px) {
  .stimulus { font-size: clamp(2rem, 9vw, 3rem); }
  .fixation { font-size: 2.2rem; }
  .stimulus, .fixation { margin-bottom: 120px; }
  .color-btn { padding: 10px 6px; font-size: 0.9rem; }
  .response-grid { padding: 8px 12px 12px; }
  .feedback { bottom: 140px; font-size: 1.1rem; }
  .trial-header { padding: 8px 14px 6px; }
}