/* ================================================================
   ZLZ Anketa – Frontend (Mobile-First)
================================================================ */

:root {
  --zlz-primary:    #003087;
  --zlz-accent:     #0066cc;
  --zlz-sky:        #e8f4fd;
  --zlz-gold:       #f5a623;
  --zlz-success:    #00b87a;
  --zlz-danger:     #e53e3e;
  --zlz-text:       #1a202c;
  --zlz-muted:      #718096;
  --zlz-border:     #e2e8f0;
  --zlz-card-bg:    #ffffff;
  --zlz-bg:         #f0f5ff;
  --zlz-radius:     16px;
  --zlz-radius-sm:  8px;
  --zlz-shadow:     0 4px 24px rgba(0,48,135,0.10);
  --zlz-shadow-lg:  0 8px 40px rgba(0,48,135,0.16);
  --zlz-transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
  --zlz-font:       -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ── WRAPPER ─────────────────────────────────────────────────── */
.zlz-anketa-wrap {
  font-family: var(--zlz-font);
  background: var(--zlz-bg);
  min-height: 100svh;
  padding: 0;
  margin: 0 auto;
  max-width: 680px;
  color: var(--zlz-text);
  -webkit-font-smoothing: antialiased;
}

/* ── HEADER ─────────────────────────────────────────────────── */
.zlz-header {
  background: linear-gradient(135deg, var(--zlz-primary) 0%, var(--zlz-accent) 100%);
  color: #fff;
  padding: 28px 24px 24px;
  position: relative;
  overflow: hidden;
}
.zlz-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0; right: 0;
  height: 32px;
  background: var(--zlz-bg);
  clip-path: ellipse(55% 100% at 50% 100%);
}
.zlz-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.zlz-logo {
  height: auto;
  width: 50px;
  filter: brightness(0) invert(1);
}
.zlz-logo-placeholder {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}
.zlz-logo-icon {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.zlz-lang-toggle {
  display: flex;
  background: rgba(255,255,255,0.15);
  border-radius: 24px;
  padding: 3px;
  gap: 2px;
  flex-shrink: 0;
}
.zlz-lang-btn {
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.75);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--zlz-transition);
  letter-spacing: 0.05em;
  font-family: var(--zlz-font);
}
.zlz-lang-btn:hover{
  background-color: transparent!important;
}
.zlz-lang-btn.active, .zlz-lang-btn.active:hover {
  background: rgba(255,255,255,0.95)!important;
  color: var(--zlz-primary);
}
.zlz-header-titles {
  margin-top: 20px;
  padding-bottom: 16px;
}
.zlz-header-titles h1 {
  margin: 0 0 6px;
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.2;
}
.zlz-header-titles p {
  margin: 0;
  font-size: 0.9rem;
  opacity: 0.85;
  line-height: 1.5;
}

/* ── PROGRESS BAR ─────────────────────────────────────────────── */
.zlz-progress-wrap {
  background: var(--zlz-bg);
  padding: 20px 24px 0;
}
.zlz-progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.zlz-progress-label {
  font-size: 0.78rem;
  color: var(--zlz-muted);
  font-weight: 500;
}
.zlz-progress-pct {
  font-size: 0.78rem;
  color: var(--zlz-accent);
  font-weight: 700;
}
.zlz-progress-bar {
  height: 6px;
  background: var(--zlz-border);
  border-radius: 3px;
  overflow: hidden;
}
.zlz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--zlz-primary), var(--zlz-accent));
  border-radius: 3px;
  transition: width 0.5s cubic-bezier(0.4,0,0.2,1);
}

/* ── FORM BODY ─────────────────────────────────────────────────── */
.zlz-form-body {
  padding: 20px 16px 32px;
}

/* ── SECTION ─────────────────────────────────────────────────── */
.zlz-section {
  display: none;
  animation: zlzFadeIn 0.35s ease;
}
.zlz-section.active {
  display: block;
}
@keyframes zlzFadeIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.zlz-section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--zlz-accent);
}
.zlz-section-icon {
  width: 32px;
  height: 32px;
  background: var(--zlz-sky);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

/* ── QUESTION CARD ─────────────────────────────────────────────── */
.zlz-card {
  background: var(--zlz-card-bg);
  border-radius: var(--zlz-radius);
  box-shadow: var(--zlz-shadow);
  padding: 22px 20px;
  margin-bottom: 16px;
}
.zlz-q-num {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--zlz-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.zlz-q-text {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--zlz-text);
  margin-bottom: 18px;
}

/* ── CHOICE GRID (transport, frequency) ─────────────────────────── */
.zlz-choices {
  display: grid;
  gap: 10px;
}
.zlz-choices.cols-2 {
  grid-template-columns: 1fr 1fr;
}
.zlz-choice-label {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #f8fafc;
  border: 2px solid var(--zlz-border);
  border-radius: var(--zlz-radius-sm);
  padding: 14px 16px;
  cursor: pointer;
  transition: var(--zlz-transition);
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--zlz-text);
  -webkit-tap-highlight-color: transparent;
}
.zlz-choice-label:hover,
.zlz-choice-label:focus-within {
  border-color: var(--zlz-accent);
  background: var(--zlz-sky);
}
.zlz-choice-label input[type="radio"] {
  display: none;
}
.zlz-choice-label input[type="radio"]:checked ~ .zlz-choice-check {
  background: var(--zlz-accent);
  border-color: var(--zlz-accent);
}
.zlz-choice-label input[type="radio"]:checked ~ .zlz-choice-check::after {
  opacity: 1;
}
.zlz-choice-label:has(input[type="radio"]:checked) {
  border-color: var(--zlz-accent);
  background: var(--zlz-sky);
  color: var(--zlz-primary);
  font-weight: 600;
}
.zlz-choice-check {
  width: 20px;
  height: 20px;
  border: 2px solid var(--zlz-border);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  transition: var(--zlz-transition);
}
.zlz-choice-check::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: #fff;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.zlz-choice-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* ── RATING SCALE ─────────────────────────────────────────────── */
.zlz-rating-wrap {
  margin-bottom: 4px;
}
.zlz-rating-labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}
.zlz-rating-label-text {
  font-size: 0.72rem;
  color: var(--zlz-muted);
  font-weight: 500;
}
.zlz-rating-btns {
  display: flex;
  gap: 8px;
  justify-content: center;
}
.zlz-rating-btn {
  flex: 1;
  aspect-ratio: 1;
  max-width: 60px;
  border: 2px solid var(--zlz-border)!important;
  background: #f8fafc;
  border-radius: 12px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--zlz-transition);
  color: var(--zlz-text)!important;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
  position: relative;
  font-family: var(--zlz-font);
}
.zlz-rating-btn:hover {
  border-color: var(--zlz-accent);
  background: var(--zlz-sky)!important;
  transform: translateY(-2px);
}
.zlz-rating-btn.selected {
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 6px 20px rgba(0,102,204,0.3);
}
.zlz-rating-btn[data-val="1"].selected { background: #fee2e2; border-color: #ef4444; color: #b91c1c; box-shadow: 0 6px 20px rgba(239,68,68,0.25); }
.zlz-rating-btn[data-val="2"].selected { background: #ffedd5; border-color: #f97316; color: #c2410c; box-shadow: 0 6px 20px rgba(249,115,22,0.25); }
.zlz-rating-btn[data-val="3"].selected { background: #fef9c3; border-color: #eab308; color: #854d0e; box-shadow: 0 6px 20px rgba(234,179,8,0.25); }
.zlz-rating-btn[data-val="4"].selected { background: #d1fae5; border-color: #10b981; color: #065f46; box-shadow: 0 6px 20px rgba(16,185,129,0.25); }
.zlz-rating-btn[data-val="5"].selected { background: #dcfce7; border-color: #22c55e; color: #14532d; box-shadow: 0 6px 20px rgba(34,197,94,0.30); }

.zlz-rating-emoji {
  position: absolute;
  top: -24px;
  font-size: 1.1rem;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  transform: translateY(4px);
  pointer-events: none;
}
.zlz-rating-btn.selected .zlz-rating-emoji {
  opacity: 1;
  transform: translateY(0);
}

/* ── LOW RATING COMMENT ─────────────────────────────────────────── */
.zlz-low-comment {
  display: none;
  margin-top: 16px;
  animation: zlzFadeIn 0.25s ease;
}
.zlz-low-comment.visible {
  display: block;
}
.zlz-low-comment label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--zlz-danger);
  margin-bottom: 8px;
}
.zlz-low-comment textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid #feb2b2;
  border-radius: var(--zlz-radius-sm);
  font-size: 0.93rem;
  font-family: var(--zlz-font);
  color: var(--zlz-text);
  background: #fff5f5;
  resize: vertical;
  min-height: 80px;
  transition: var(--zlz-transition);
  box-sizing: border-box;
}
.zlz-low-comment textarea:focus {
  outline: none;
  border-color: var(--zlz-danger);
  box-shadow: 0 0 0 3px rgba(229,62,62,0.12);
}

/* ── TEXTAREA (improvement comment) ─────────────────────────────── */
.zlz-textarea-wrap textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--zlz-border);
  border-radius: var(--zlz-radius-sm);
  font-size: 0.95rem;
  font-family: var(--zlz-font);
  color: var(--zlz-text);
  resize: vertical;
  min-height: 100px;
  transition: var(--zlz-transition);
  box-sizing: border-box;
  background: #f8fafc;
}
.zlz-textarea-wrap textarea:focus {
  outline: none;
  border-color: var(--zlz-accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(0,102,204,0.12);
}

/* ── NAV BUTTONS ─────────────────────────────────────────────────── */
.zlz-nav {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  align-items: center;
}
.zlz-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 28px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: none!important;
  color: #fff!important;
  transition: var(--zlz-transition);
  font-family: var(--zlz-font);
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
}
.zlz-btn-primary {
  background: linear-gradient(135deg, var(--zlz-primary), var(--zlz-accent));
  color: #fff;
  flex: 1;
  box-shadow: 0 4px 16px rgba(0,48,135,0.3);
}
.zlz-btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,48,135,0.4);
}
.zlz-btn-primary:active {
  transform: translateY(0);
}
.zlz-btn-back{
  color: var(--zlz-primary)!important;
}
.zlz-btn-back:hover, .zlz-btn-back:focus{
  background-color: rgba(0,0,0,0)!important;
}
.zlz-btn-secondary {
  background: var(--zlz-card-bg);
  color: var(--zlz-primary);
  border: 2px solid var(--zlz-border);
  padding: 13px 20px;
}
.zlz-btn-secondary:hover {
  border-color: var(--zlz-accent);
  background: var(--zlz-sky);
}
.zlz-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ── ERROR STATE ─────────────────────────────────────────────────── */
.zlz-card.has-error {
  border: 2px solid var(--zlz-danger);
  box-shadow: 0 0 0 3px rgba(229,62,62,0.1);
}
.zlz-error-msg {
  font-size: 0.8rem;
  color: var(--zlz-danger);
  font-weight: 600;
  margin-top: 10px;
  display: none;
}
.zlz-card.has-error .zlz-error-msg {
  display: block;
}

/* ── THANK YOU SCREEN ─────────────────────────────────────────────── */
.zlz-thankyou {
  display: none;
  text-align: center;
  padding: 48px 24px;
  animation: zlzFadeIn 0.5s ease;
}
.zlz-thankyou.visible {
  display: block;
}
.zlz-ty-icon {
  width: 88px;
  height: 88px;
  background: linear-gradient(135deg, var(--zlz-success), #00d68f);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto 24px;
  box-shadow: 0 8px 32px rgba(0,184,122,0.35);
  animation: zlzBounce 0.6s 0.2s both;
}
@keyframes zlzBounce {
  0%   { transform: scale(0.3); opacity: 0; }
  60%  { transform: scale(1.15); }
  80%  { transform: scale(0.95); }
  100% { transform: scale(1); opacity: 1; }
}
.zlz-ty-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--zlz-primary);
  margin: 0 0 12px;
}
.zlz-ty-subtitle {
  font-size: 1rem;
  color: var(--zlz-muted);
  margin: 0 0 32px;
  line-height: 1.6;
}
.zlz-ty-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--zlz-sky);
  border: 1px solid rgba(0,102,204,0.2);
  color: var(--zlz-primary);
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 0.88rem;
  font-weight: 600;
}

/* ── SUBMIT LOADING ─────────────────────────────────────────────── */
.zlz-spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: zlzSpin 0.7s linear infinite;
  display: none;
}
.zlz-btn-primary.loading .zlz-spinner { display: block; }
.zlz-btn-primary.loading .zlz-btn-text { display: none; }
@keyframes zlzSpin {
  to { transform: rotate(360deg); }
}

/* ── VALIDATION ALERT ─────────────────────────────────────────────── */
.zlz-alert {
  background: #fff5f5;
  border: 1px solid #fed7d7;
  border-radius: var(--zlz-radius-sm);
  padding: 12px 16px;
  font-size: 0.875rem;
  color: var(--zlz-danger);
  margin-bottom: 16px;
  display: none;
}
.zlz-alert.visible {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── OPTIONAL TAG ─────────────────────────────────────────────────── */
.zlz-optional {
  font-size: 0.7rem;
  color: var(--zlz-muted);
  font-weight: 400;
  background: var(--zlz-border);
  padding: 2px 8px;
  border-radius: 20px;
  margin-left: 8px;
  vertical-align: middle;
}

/* ── RESPONSIVE ─────────────────────────────────────────────────── */
@media (max-width: 400px) {
  .zlz-choices.cols-2 { grid-template-columns: 1fr; }
  .zlz-rating-btns { gap: 5px; }
  .zlz-rating-btn { border-radius: 10px; font-size: 1.1rem; }
  .zlz-btn { padding: 14px 20px; font-size: 0.95rem; }
  .zlz-header-titles h1 { font-size: 1.2rem; }
}
@media (min-width: 600px) {
  .zlz-form-body { padding: 24px 28px 40px; }
  .zlz-header { padding: 32px 32px 28px; }
  .zlz-progress-wrap { padding: 24px 32px 0; }
  .zlz-rating-btn { font-size: 1.3rem; max-width: 72px; }
}