/* ============================================================
   VARIABLES & RESET
   ============================================================ */
:root {
  --accent:        #6C63FF;
  --accent-dark:   #4B44CC;
  --accent-light:  #EEF0FF;
  --star-off:      #DDD;
  --star-on:       #FFD700;
  --star-hover:    #FFC107;
  --bg-gradient:   linear-gradient(145deg, #f0f2ff 0%, #e8f5e9 60%, #fff9e6 100%);
  --card-bg:       #FFFFFF;
  --text:          #1a1a2e;
  --text-sub:      #6066a0;
  --success:       #22C55E;
  --danger:        #EF4444;
  --shadow:        0 12px 40px rgba(108,99,255,0.13);
  --radius:        24px;
  --font:          'Segoe UI', system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background: var(--bg-gradient);
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  color: var(--text);
}

/* ============================================================
   ANIMATED BACKGROUND BLOBS
   ============================================================ */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.page-bg::before,
.page-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  animation: blob-drift 12s ease-in-out infinite alternate;
}
.page-bg::before {
  width: 420px; height: 420px;
  background: radial-gradient(circle, #b3aaff, #7c74e8);
  top: -100px; left: -80px;
}
.page-bg::after {
  width: 320px; height: 320px;
  background: radial-gradient(circle, #a7f3d0, #34d399);
  bottom: -80px; right: -60px;
  animation-delay: -6s;
}
@keyframes blob-drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(40px, 30px) scale(1.08); }
}

/* ============================================================
   CARD
   ============================================================ */
.card-wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 2.5rem 2rem 2rem;
  box-shadow: var(--shadow);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* ============================================================
   SCREENS
   ============================================================ */
.screen {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  width: 100%;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.screen.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   LOADING
   ============================================================ */
.loader-ring {
  width: 52px; height: 52px;
  border: 4px solid var(--accent-light);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-text { color: var(--text-sub); font-size: 0.95rem; }

/* ============================================================
   CLIENT HEADER
   ============================================================ */
.client-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.client-logo {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  background: #f5f5ff;
  padding: 6px;
}

.client-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

/* ============================================================
   HEADINGS & TEXT
   ============================================================ */
h2 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

.subtitle {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.55;
  max-width: 320px;
}

.rating-question {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-sub);
}

.closing-msg {
  font-size: 1rem;
  color: var(--text-sub);
  margin-top: -0.25rem;
}

/* ============================================================
   EMOJI DISPLAY
   ============================================================ */
.emoji-display {
  font-size: 4.5rem;
  line-height: 1;
  display: block;
  user-select: none;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform;
}
.emoji-display.pop {
  transform: scale(1.25);
}

/* ============================================================
   STARS
   ============================================================ */
.stars-container {
  display: flex;
  gap: 0.3rem;
  justify-content: center;
  padding: 0.25rem 0;
}

.star-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 3.5rem;
  line-height: 1;
  padding: 0.15rem 0.1rem;
  color: var(--star-off);
  transition: color 0.15s ease, transform 0.15s cubic-bezier(0.34,1.56,0.64,1);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}
.star-btn.lit     { color: var(--star-on); }
.star-btn.hovered { color: var(--star-hover); transform: scale(1.18); }
.star-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.rating-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  min-height: 1.4em;
  transition: opacity 0.2s;
}

/* ============================================================
   REVIEW TEXTAREA (positive-write)
   ============================================================ */
.review-text-wrap {
  width: 100%;
  text-align: left;
}

.review-label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-sub);
  margin-bottom: 0.4rem;
  font-weight: 500;
}

.textarea-shell {
  position: relative;
}

.review-textarea {
  width: 100%;
  border: 2px solid #e5e7ff;
  border-radius: 14px;
  padding: 0.75rem 2.8rem 0.75rem 0.85rem;
  font-size: 0.92rem;
  font-family: var(--font);
  color: var(--text);
  resize: none;
  line-height: 1.5;
  transition: border-color 0.2s;
  background: #fafbff;
}
.review-textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
}

.ai-badge {
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 0.7rem;
  background: linear-gradient(135deg, #6C63FF, #a78bfa);
  color: white;
  padding: 2px 7px;
  border-radius: 20px;
  white-space: nowrap;
  font-weight: 600;
  pointer-events: none;
}

/* ============================================================
   PHOTO UPLOAD
   ============================================================ */
.photo-upload-wrap {
  width: 100%;
  text-align: left;
}

.photo-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--accent);
  font-weight: 600;
  padding: 0.5rem 0;
  user-select: none;
}
.photo-label:hover { text-decoration: underline; }

.photo-input {
  display: none;
}

.photo-preview {
  position: relative;
  display: inline-block;
  margin-top: 0.4rem;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.photo-preview img {
  display: block;
  max-width: 180px;
  max-height: 140px;
  object-fit: cover;
  border-radius: 12px;
}
.photo-remove {
  position: absolute;
  top: 4px; right: 4px;
  background: rgba(0,0,0,0.55);
  color: white;
  border: none;
  border-radius: 50%;
  width: 22px; height: 22px;
  font-size: 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.photo-remove:hover { background: rgba(0,0,0,0.8); }

/* ============================================================
   INSTRUCTION BOX (positive-open)
   ============================================================ */
.instruction-box {
  background: #f5f5ff;
  border: 2px solid var(--accent-light);
  border-radius: 16px;
  padding: 1.1rem 1.3rem;
  line-height: 1.65;
  font-size: 0.95rem;
  text-align: left;
  width: 100%;
}
.instruction-box strong { color: var(--text); }
.instruction-hint {
  font-size: 0.8rem;
  color: var(--text-sub);
  margin-top: 0.3rem;
}

/* ============================================================
   FORM FIELDS (negative)
   ============================================================ */
.field-group {
  width: 100%;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-sub);
}

.field-group input,
.field-group textarea {
  width: 100%;
  border: 2px solid #e5e7ff;
  border-radius: 12px;
  padding: 0.7rem 0.85rem;
  font-size: 0.92rem;
  font-family: var(--font);
  color: var(--text);
  transition: border-color 0.2s, background 0.2s;
  background: #fafbff;
  resize: none;
}
.field-group input:focus,
.field-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
}
.field-group input.invalid,
.field-group textarea.invalid {
  border-color: var(--danger);
}

#feedback-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  width: 100%;
}

.form-error {
  background: #fff0f0;
  color: var(--danger);
  border: 1px solid #fcc;
  border-radius: 10px;
  padding: 0.6rem 0.9rem;
  font-size: 0.85rem;
  text-align: left;
}

/* ============================================================
   COUPON / INCENTIVE
   ============================================================ */
.coupon-box {
  width: 100%;
  border: 2.5px dashed var(--accent);
  border-radius: 20px;
  padding: 1.5rem 1rem;
  background: var(--accent-light);
  position: relative;
  overflow: hidden;
}
.coupon-box::before,
.coupon-box::after {
  content: '';
  position: absolute;
  width: 24px; height: 24px;
  background: #fff;
  border-radius: 50%;
  top: 50%; transform: translateY(-50%);
}
.coupon-box::before { left: -12px; }
.coupon-box::after  { right: -12px; }

.coupon-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.incentive-logo {
  width: 52px; height: 52px;
  object-fit: contain;
  border-radius: 10px;
  background: white;
  padding: 4px;
}

.incentive-text {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
}

.incentive-hint {
  font-size: 0.8rem;
  color: var(--text-sub);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  width: 100%;
  max-width: 320px;
  padding: 0.9rem 1.5rem;
  border-radius: 50px;
  font-size: 0.97rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  font-family: var(--font);
  letter-spacing: 0.01em;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.btn:active   { transform: scale(0.96); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  box-shadow: 0 6px 20px rgba(108,99,255,0.35);
}
.btn-primary:hover:not(:disabled) {
  box-shadow: 0 8px 26px rgba(108,99,255,0.48);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, #22C55E, #16A34A);
  color: white;
  box-shadow: 0 6px 20px rgba(34,197,94,0.32);
}
.btn-success:hover:not(:disabled) { transform: translateY(-1px); }

.btn-outline {
  background: white;
  color: var(--accent);
  border: 2.5px solid var(--accent);
  box-shadow: none;
}
.btn-outline:hover { background: var(--accent-light); }

.btn-ai {
  background: linear-gradient(135deg, #7C3AED, #4F46E5);
  color: white;
  box-shadow: 0 6px 20px rgba(124,58,237,0.35);
}
.btn-ai:hover:not(:disabled) {
  box-shadow: 0 8px 26px rgba(124,58,237,0.48);
  transform: translateY(-1px);
}

.optional-tag {
  font-size: 0.75rem;
  color: var(--text-sub);
  font-weight: 400;
  margin-left: 4px;
}

#pw-no-text { display: flex; flex-direction: column; gap: 0.75rem; width: 100%; }
#pw-with-text { flex-direction: column; gap: 1rem; width: 100%; }
#pw-loading-ai { flex-direction: column; align-items: center; gap: 0.75rem; }

/* ============================================================
   SKIP LINK
   ============================================================ */
.skip-link {
  font-size: 0.82rem;
  color: var(--text-sub);
  text-decoration: none;
  margin-top: -0.25rem;
  padding: 0.25rem 0;
}
.skip-link:hover { color: var(--accent); text-decoration: underline; }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes pop-in {
  0%   { transform: scale(0.3); opacity: 0; }
  70%  { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes bounce-y {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}

.animated-pop    { animation: pop-in 0.5s cubic-bezier(0.34,1.56,0.64,1) both; }
.animated-bounce { animation: bounce-y 1.4s ease-in-out infinite; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 400px) {
  .card { padding: 2rem 1.3rem 1.75rem; }
  .star-btn { font-size: 2.9rem; }
  h2 { font-size: 1.3rem; }
  .emoji-display { font-size: 3.8rem; }
}

@media (min-height: 700px) {
  .card { padding: 3rem 2.25rem 2.25rem; }
}