/* RZI Survey - Modern Innovative Design inspired by RZI Chennai 2026 */

:root {
  /* RZI Chennai 2026 Color Palette */
  --color-primary: #1e3a8a;        /* Deep blue from the graphic */
  --color-primary-hover: #1e40af;
  --color-primary-light: rgba(30, 58, 138, 0.1);
  --color-secondary: #059669;       /* Green accent */
  --color-accent-orange: #f97316;   /* Orange from RZI logo */
  --color-accent-red: #dc2626;      /* Red from RZI logo */
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-white: #ffffff;
  --color-dark-bg: #0f172a;         /* Dark blue background */
  --color-dark-surface: #1e293b;    /* Dark surface */
  --color-dark-surface-light: #334155;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;
  
  /* Modern Design Tokens */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  
  /* Enhanced Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-glow: 0 0 20px rgba(30, 58, 138, 0.3);
  --shadow-glow-orange: 0 0 20px rgba(249, 115, 22, 0.3);
  
  /* Animation Timing */
  --t-fast: 150ms ease-in-out;
  --t-normal: 300ms ease-in-out;
  --t-slow: 500ms ease-in-out;
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-backdrop: blur(10px);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--color-text-primary);
  background: var(--color-dark-bg);
  overflow-x: hidden;
  position: relative;
}

/* Simplified background pattern for better performance */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 20%, rgba(30, 58, 138, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(5, 150, 105, 0.03) 0%, transparent 40%);
  z-index: -1;
  pointer-events: none;
}

.skip-link { position:absolute; left:-9999px; }
.skip-link:focus { left: 8px; top: 8px; background: var(--color-primary); color:#fff; padding:8px 12px; border-radius:8px; }

.layout {
  display: flex;
  gap: 32px;
  padding: 32px;
  min-height: 100vh;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.sidebar {
  width: 360px;
  background: var(--color-dark-surface);
  border-radius: var(--radius-2xl);
  padding: 32px;
  border: 1px solid var(--color-dark-surface-light);
  box-shadow: var(--shadow-xl);
  height: calc(100vh - 64px);
  overflow: auto;
  position: sticky;
  top: 32px;
  align-self: flex-start;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* Internet Explorer 10+ */
}

.sidebar::-webkit-scrollbar { /* WebKit */
  display: none;
}

.sidebar:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2xl);
}

.sidebar__title { 
  margin: 0 0 20px; 
  font-weight: 700; 
  font-size: 18px;
  color: var(--color-text-primary);
  text-align: center;
  letter-spacing: -0.025em;
}

.question-nav { display: flex; flex-direction: column; gap: 12px; }
.question-nav__item {
  display: flex; 
  gap: 12px; 
  align-items: center;
  padding: 16px 18px; 
  border-radius: var(--radius-lg); 
  text-decoration: none; 
  color: var(--color-text-secondary);
  border: 1px solid var(--color-dark-surface-light); 
  background: rgba(255, 255, 255, 0.02); 
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}

.question-nav__item:hover { 
  background: rgba(255, 255, 255, 0.05); 
  border-color: var(--color-primary);
  color: var(--color-text-primary);
}

.question-nav__item--current { 
  border-color: var(--color-primary); 
  color: var(--color-text-primary); 
  background: rgba(30, 58, 138, 0.15);
  box-shadow: var(--shadow-glow);
}

.question-nav__item--completed { 
  border-color: var(--color-secondary); 
  color: var(--color-secondary); 
  background: rgba(5, 150, 105, 0.1);
}

.question-nav__number { 
  width: 32px; 
  height: 32px; 
  border-radius: 50%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  background: var(--color-dark-surface-light); 
  font-size: 13px; 
  font-weight: 700;
  transition: all var(--t-normal);
  position: relative;
  z-index: 1;
}

.question-nav__item--current .question-nav__number { 
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover)); 
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.question-nav__item--completed .question-nav__number { 
  background: linear-gradient(135deg, var(--color-secondary), #047857); 
  color: #fff;
}

.question-nav__text { 
  flex: 1; 
  font-weight: 500;
  line-height: 1.4;
}

.question-nav__status { 
  font-size: 10px; 
  color: var(--color-text-muted); 
  text-transform: uppercase; 
  font-weight: 600;
  letter-spacing: 0.05em;
}

.main { 
  flex: 1; 
  display: flex; 
  flex-direction: column; 
  gap: 32px; 
  min-height: 0;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* Internet Explorer 10+ */
  /* Ensure consistent main content dimensions */
  box-sizing: border-box;
}

.main::-webkit-scrollbar { /* WebKit */
  display: none;
}

/* Hidden by default; shown on small screens */
.question-nav--mobile { display: none; }

.header {
  display: flex; 
  align-items: center; 
  gap: 16px;
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-surface-light); 
  border-radius: var(--radius-2xl);
  padding: 24px 32px; 
  box-shadow: var(--shadow-xl);
  transition: transform var(--t-fast), box-shadow var(--t-fast);
  position: relative;
  overflow: hidden;
  /* Ensure consistent header dimensions */
  height: 84px;
  min-height: 84px;
  max-height: 84px;
  flex-shrink: 0;
  box-sizing: border-box;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-orange), var(--color-secondary));
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.header:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2xl);
}

.header__progress { flex: 1; }
/* Split header evenly between progress and logos */
.header__progress { flex-basis: 50%; max-width: 50%; }
.header__logos { flex-basis: 50%; max-width: 50%; display: flex; justify-content: flex-end; align-items: center; }
.progress-bar { 
  width: 100%; 
  height: 12px; 
  background: var(--color-dark-surface-light); 
  border-radius: 999px; 
  overflow: hidden;
  position: relative;
}

.progress-bar__fill { 
  height: 100%; 
  width: 0%; 
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-orange), var(--color-secondary)); 
  transition: width 0.4s ease-out;
  border-radius: 999px;
}

.header__logo { 
  height: auto; 
  max-width: 480px;
  width: 100%;
  filter: brightness(1.1);
  transition: all var(--t-normal);
  object-fit: contain;
  display: block;
}

.header__logo:hover {
  transform: scale(1.05);
  filter: brightness(1.2);
}

.question-container {
  flex: 1; 
  display: flex; 
  flex-direction: column;
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-surface-light); 
  border-radius: var(--radius-2xl);
  padding: 32px; 
  box-shadow: var(--shadow-xl); 
  position: relative; 
  overflow: hidden;
  min-height: 0;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
  box-sizing: border-box;
}

.question-container:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2xl);
}

.question-container::before { 
  content: ''; 
  position: absolute; 
  left: 0; 
  right: 0; 
  top: 0; 
  height: 4px; 
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-orange), var(--color-secondary)); 
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

/* Background fill that fills from bottom to top */
.question-container__background-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0%;
  background: linear-gradient(180deg, 
    rgba(30, 58, 138, 0.1) 0%, 
    rgba(30, 58, 138, 0.2) 30%,
    rgba(249, 115, 22, 0.15) 70%,
    rgba(5, 150, 105, 0.2) 100%
  );
  transition: height 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
  border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
  pointer-events: none;
}

/* Ensure content stays above the background fill */
.question-container > * {
  position: relative;
  z-index: 1;
}

.question { 
  display: flex; 
  flex-direction: column; 
  gap: 12px; 
  min-height: 0;
  flex: 1;
}

.question__header {
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 16px 0;
  position: relative;
  box-sizing: border-box;
  overflow: visible;
  flex-shrink: 0;
  /* Ensure consistent spacing */
  gap: 0;
  /* Isolate from any parent layout changes */
  isolation: isolate;
  contain: layout style;
}

/* Ensure consistent structure for all header elements */
.question__header .question__title {
  order: 1;
}

.question__header .question__subtitle {
  order: 2;
}

.question__header .question__hint {
  order: 3;
}

.question__logos { 
  display: flex; 
  flex-direction: column; 
  align-items: center; 
  gap: 8px; 
  margin-bottom: 0; 
  flex-shrink: 0;
  box-sizing: border-box;
}

.question__logo--rzi { 
  height: 180px; 
  filter: brightness(1.1);
  transition: all var(--t-normal);
}

.question__logo--rzi:hover {
  transform: scale(1.02);
  filter: brightness(1.2);
}

.question__logo--partners { 
  height: 80px; 
  filter: brightness(1.1);
  transition: all var(--t-normal);
}

.question__logo--partners:hover {
  transform: scale(1.05);
  filter: brightness(1.2);
}

.question__title { 
  font-size: 24px; 
  font-weight: 700;
  text-align: center; 
  color: var(--color-text-primary);
  letter-spacing: -0.025em;
  line-height: 1.3;
  margin: 0;
  flex-shrink: 0;
  max-height: none;
  overflow: visible;
  word-wrap: break-word;
  white-space: normal;
}

.question__subtitle { 
  text-align: center; 
  color: var(--color-text-secondary); 
  font-size: 13px;
  line-height: 1.4;
  margin: 6px 0 0 0;
  max-width: 480px;
  font-style: italic;
  opacity: 0.9;
  flex-shrink: 0;
  /* Show full subtitle; no truncation */
  max-height: none;
  overflow: visible;
  display: block;
}

/* Ensure long subtitles wrap normally */
.question__subtitle:not(:empty) {
  white-space: normal;
  word-wrap: break-word;
}

/* Ensure full subtitle/hint visibility across all breakpoints */
.question__subtitle,
.question__hint {
  display: block !important;
  overflow: visible !important;
  max-height: none !important;
}

.question__hint { 
  text-align: center; 
  color: var(--color-text-muted); 
  font-size: 13px;
  line-height: 1.4;
  margin: 6px 0 0 0;
  max-width: 480px;
  font-style: italic;
  opacity: 0.9;
  flex-shrink: 0;
  /* Show full hint; no truncation */
  max-height: none;
  overflow: visible;
  display: block;
}

/* Handle empty elements */
.question__subtitle:empty,
.question__hint:empty {
  display: none;
}

.question__required { 
  color: var(--color-accent-orange); 
  margin-left: 6px;
  font-weight: 700;
}

.question__options { 
  display: flex; 
  flex-direction: column; 
  gap: 16px; 
}

.question__options.grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); 
  gap: 16px; 
}

.option { 
  position: relative; 
}

.option__input { 
  position: absolute;
  opacity: 0; 
}

.option__label { 
  display: block; 
  padding: 16px 20px; 
  border: 2px solid var(--color-dark-surface-light); 
  border-radius: var(--radius-lg); 
  background: rgba(255, 255, 255, 0.02); 
  cursor: pointer; 
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast); 
  text-align: center; 
  color: var(--color-text-secondary);
  font-weight: 500;
}

.option__label:hover { 
  border-color: var(--color-primary); 
  background: rgba(30, 58, 138, 0.1); 
  color: var(--color-text-primary);
}

.option__input:checked + .option__label { 
  border-color: var(--color-primary); 
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover)); 
  color: #fff; 
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.text-input, .textarea-input, select {
  width: 100%; 
  padding: 16px 20px; 
  border: 2px solid var(--color-dark-surface-light); 
  border-radius: var(--radius-lg); 
  font: inherit; 
  background: rgba(255, 255, 255, 0.05); 
  color: var(--color-text-primary);
  transition: border-color var(--t-fast), box-shadow var(--t-fast); 
  text-align: center; 
  text-align-last: center;
}

.text-input:focus, .textarea-input:focus, select:focus { 
  outline: none; 
  border-color: var(--color-primary); 
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.text-input::placeholder, .textarea-input::placeholder {
  color: var(--color-text-muted);
}

.textarea-input { 
  min-height: 140px; 
  resize: vertical; 
  text-align: left;
  text-align-last: left;
}

/* Review screen styles */
.review-list { 
  display: flex; 
  flex-direction: column; 
  gap: 16px; 
}

.review-item { 
  display: flex; 
  flex-direction: column; 
  gap: 8px;
  padding: 20px; 
  border: 1px solid var(--color-dark-surface-light); 
  border-radius: var(--radius-lg); 
  background: rgba(255, 255, 255, 0.03); 
  transition: background var(--t-fast);
}

.review-item:hover { 
  background: rgba(255, 255, 255, 0.06); 
}

.review-key { 
  color: var(--color-text-secondary); 
  font-size: 14px; 
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.review-value { 
  color: var(--color-text-primary); 
  font-size: 16px; 
  line-height: 1.5; 
  font-weight: 500;
}

.review-value--textarea {
  white-space: pre-wrap;
  background: var(--color-dark-surface-light);
  border: 1px solid var(--color-dark-surface-light);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-top: 8px;
  font-family: inherit;
  line-height: 1.5;
  min-height: 60px;
  max-height: 200px;
  overflow-y: auto;
  display: block;
  width: 100%;
  box-sizing: border-box;
  word-break: break-word;
}

.footer { 
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-surface-light); 
  border-radius: var(--radius-2xl); 
  padding: 24px 32px; 
  box-shadow: var(--shadow-xl);
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}

.footer:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2xl);
}

.footer__content { 
  display: flex; 
  align-items: center; 
  gap: 16px; 
  justify-content: space-between; 
}

.footer__content .btn { 
  min-width: 140px; 
}

.btn { 
  display: inline-flex; 
  align-items: center; 
  justify-content: center; 
  gap: 12px; 
  padding: 18px 28px; 
  border-radius: var(--radius-lg); 
  border: 2px solid transparent;
  font-weight: 600; 
  cursor: pointer; 
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast); 
  text-align: center;
  font-size: 15px;
}

.btn:disabled { 
  opacity: 0.5; 
  cursor: not-allowed; 
  transform: none !important;
}

.btn--secondary { 
  background: rgba(255, 255, 255, 0.05); 
  border-color: var(--color-dark-surface-light); 
  color: var(--color-text-secondary);
}

.btn--secondary:hover { 
  background: rgba(255, 255, 255, 0.1); 
  transform: translateY(-1px);
  color: var(--color-text-primary);
}

.btn--primary { 
  background: var(--color-primary); 
  color: #fff; 
  border-color: var(--color-primary);
}

.btn--primary:hover { 
  background: var(--color-primary-hover); 
  transform: translateY(-1px);
}
.btn--success { 
  background: var(--color-secondary); 
  color: #fff; 
  border-color: var(--color-secondary); 
  font-weight: 700;
  font-size: 16px;
  padding: 20px 36px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn--success:hover {
  background: #047857;
  transform: translateY(-1px);
}

/* Submit button loading state */
.btn--success:disabled {
  background: #6b7280;
  border-color: #6b7280;
}

/* Muted button for secondary actions */
.btn--muted {
  background: var(--color-dark-surface-light);
  color: var(--color-text-muted);
  border-color: var(--color-dark-surface-light);
  font-weight: 500;
}

.btn--muted:hover {
  background: var(--color-dark-surface);
  color: var(--color-text-secondary);
  transform: translateY(-1px);
}

/* Call-to-Action button for primary actions */
.btn--cta,
a.btn--cta {
  background: var(--color-primary) !important;
  color: #fff !important;
  border-color: var(--color-primary) !important;
  font-weight: 700;
  font-size: 16px;
  padding: 18px 32px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--t-fast), transform var(--t-fast);
}

.btn--cta:hover,
a.btn--cta:hover {
  background: var(--color-primary-hover) !important;
  transform: translateY(-1px);
  color: #fff !important;
  text-decoration: none !important;
}

/* Outline CTA */
.btn--outline,
a.btn--outline {
  background: transparent !important;
  color: var(--color-white) !important;
  border-color: var(--color-white) !important;
  border-width: 2px;
  font-weight: 700;
  font-size: 16px;
  padding: 18px 32px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  cursor: pointer;
  transition: all var(--t-fast);
}

.btn--outline:hover,
a.btn--outline:hover {
  background: rgba(255,255,255,0.08) !important;
  color: #fff !important;
  border-color: #fff !important;
  transform: translateY(-1px);
}

.hidden { display:none !important; }

/* Modal & Loading */
.modal { 
  position: fixed; 
  inset: 0; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  padding: 16px; 
  z-index: 50; 
}

.modal__backdrop { 
  position: absolute; 
  inset: 0; 
  background: rgba(0, 0, 0, 0.8); 
}

.modal__content { 
  position: relative; 
  background: var(--color-dark-surface); 
  border: 1px solid var(--color-dark-surface-light);
  border-radius: var(--radius-2xl); 
  padding: 40px; 
  width: 100%; 
  max-width: 520px; 
  box-shadow: var(--shadow-2xl); 
  text-align: center; 
  animation: modalEntrance 0.2s ease-out;
}

@keyframes modalEntrance {
  0% {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Success Modal Styles */
.success-content { 
  display: flex; 
  flex-direction: column; 
  align-items: center; 
  gap: 24px; 
}

.success-logos { 
  display: flex; 
  flex-direction: column; 
  align-items: center; 
  gap: 20px; 
}

.success-logo {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.success-logo--rzi { 
  max-height: 140px; 
  filter: brightness(1.1);
  transition: all var(--t-normal);
}

.success-logo--rzi:hover {
  transform: scale(1.02);
  filter: brightness(1.2);
}

.success-logo--partners { 
  max-width: 100%;
  height: auto;
  filter: brightness(1.1);
  transition: all var(--t-normal);
}

.success-logo--partners:hover {
  transform: scale(1.05);
  filter: brightness(1.2);
}

.success-icon { 
  width: 64px; 
  height: 64px; 
  animation: successPulse 0.6s ease-out;
}

.success-icon__circle { 
  stroke: var(--color-secondary); 
  stroke-width: 3; 
  fill: none;
}

.success-icon__check { 
  stroke: var(--color-secondary); 
  stroke-width: 3; 
  stroke-linecap: round; 
  stroke-linejoin: round;
  fill: none;
}

@keyframes successPulse { 
  0% { 
    transform: scale(0.8);
    opacity: 0.7;
  }
  50% { 
    transform: scale(1.1);
    opacity: 1;
  }
  100% { 
    transform: scale(1);
    opacity: 1;
  }
}

.success-title { 
  font-size: 28px; 
  font-weight: 800; 
  color: var(--color-text-primary); 
  margin: 0; 
  letter-spacing: -0.025em;
}

.success-message { 
  color: var(--color-text-secondary); 
  margin: 0; 
  line-height: 1.6; 
  font-size: 16px;
}
.success-actions { 
  display: flex; 
  gap: 20px; 
  justify-content: center; 
  flex-wrap: wrap; 
  align-items: center;
  margin-top: 8px;
}

.success-actions .btn--muted {
  order: 2;
  flex: 0 0 auto;
  min-width: 160px;
}

.success-actions .btn--cta {
  order: 1;
  flex: 0 0 auto;
  min-width: 200px;
}

.loading-overlay { 
  position: fixed; 
  inset: 0; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  flex-direction: column; 
  gap: 16px; 
  background: rgba(15, 23, 42, 0.95); 
  z-index: 60; 
}

.loading-spinner { 
  width: 48px; 
  height: 48px; 
  border: 4px solid var(--color-dark-surface-light); 
  border-top: 4px solid var(--color-primary); 
  border-radius: 50%; 
  animation: spin 1s linear infinite; 
}

.loading-text {
  color: var(--color-text-primary);
  font-size: 16px;
  font-weight: 500;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 400px;
  pointer-events: none;
}

.toast {
  background: var(--color-dark-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: auto;
  position: relative;
  overflow: hidden;
}

.toast--show {
  opacity: 1;
  transform: translateX(0);
}

.toast--error {
  border-color: var(--color-accent-red);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
}

.toast--success {
  border-color: var(--color-accent-green);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(34, 197, 94, 0.05) 100%);
}

.toast--warning {
  border-color: var(--color-accent-orange);
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.1) 0%, rgba(249, 115, 22, 0.05) 100%);
}

.toast--info {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
}

.toast__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

.toast__icon--error {
  color: var(--color-accent-red);
}

.toast__icon--success {
  color: var(--color-accent-green);
}

.toast__icon--warning {
  color: var(--color-accent-orange);
}

.toast__icon--info {
  color: var(--color-primary);
}

.toast__content {
  flex: 1;
  min-width: 0;
}

.toast__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 4px 0;
  line-height: 1.4;
}

.toast__message {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.4;
}

.toast__close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toast__close:hover {
  color: var(--color-text-primary);
  background: var(--color-dark-bg);
}

.toast__close svg {
  width: 14px;
  height: 14px;
}

/* Toast Progress Bar */
.toast__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--color-primary);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  transition: width linear;
}

.toast--error .toast__progress {
  background: var(--color-accent-red);
}

.toast--success .toast__progress {
  background: var(--color-accent-green);
}

.toast--warning .toast__progress {
  background: var(--color-accent-orange);
}

.toast--info .toast__progress {
  background: var(--color-primary);
}

/* Mobile Toast Adjustments */
@media (max-width: 768px) {
  .toast-container {
    top: 16px;
    right: 16px;
    left: 16px;
    max-width: none;
  }
  
  .toast {
    padding: 14px 16px;
  }
  
  .toast__title {
    font-size: 13px;
  }
  
  .toast__message {
    font-size: 12px;
  }
}

@keyframes spin { 
  to { transform: rotate(360deg); } 
}

/* Large tablets and small desktops */
@media (max-width: 1200px) {
  .layout { max-width: 100%; padding: 20px; }
  .sidebar { width: 280px; }
}

/* Tablets */
@media (max-width: 1024px) {
  .layout { padding: 16px; gap: 16px; }
  .sidebar { width: 260px; }
  .question__logo--rzi { height: 140px; }
  .question__logo--partners { height: 64px; }
  /* Tablets: keep an even split between progress and logos */
  .header__progress { flex-basis: 50%; max-width: 50%; }
  .header__logos { flex-basis: 50%; max-width: 50%; }
}

/* Large mobile and small tablets */
@media (max-width: 900px) {
  .layout { 
    flex-direction: column; 
    padding: 16px; 
    gap: 16px; 
  }
  /* Hide desktop sidebar on mobile */
  .sidebar { 
    display: none; 
    position: static;
  }
  /* Show mobile nav block between header and question card */
  .question-nav--mobile { 
    display: flex !important; 
    flex-direction: row; 
    gap: 8px; 
    overflow-x: auto; 
    background: var(--color-dark-surface); 
    border: 1px solid var(--color-dark-surface-light); 
    border-radius: var(--radius-lg); 
    padding: 12px 16px; 
    box-shadow: var(--shadow-xl);
    margin: 0;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* Internet Explorer 10+ */
  }
  
  .question-nav--mobile::-webkit-scrollbar { /* WebKit */
    display: none;
  }
  
  /* Ensure consistent header styling on mobile */
  .header {
    padding: 20px 24px;
  }
  /* Use 70% for logos and 30% for progress on small tablets/large mobiles */
  .header__progress { flex-basis: 30%; max-width: 30%; }
  .header__logos { flex-basis: 70%; max-width: 70%; justify-content: flex-end; }
  .sidebar__title { 
    display: none; 
  }
  .question-nav { 
    flex-direction: row; 
    gap: 8px; 
    overflow-x: auto; 
    padding-bottom: 8px;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* Internet Explorer 10+ */
  }
  .question-nav::-webkit-scrollbar { /* WebKit */
    display: none;
  }
  .question-nav__item {
    flex-shrink: 0;
    min-width: 80px;
    padding: 12px 8px;
    flex-direction: column;
    text-align: center;
    gap: 6px;
    border: 1px solid var(--color-dark-surface-light);
    background: var(--color-dark-surface);
    border-radius: var(--radius-lg);
    transition: all var(--t-fast);
    box-shadow: var(--shadow-sm);
  }
  
  .question-nav__item:hover {
    background: var(--color-dark-surface-light);
    border-color: var(--color-primary);
    color: var(--color-text-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
  }
  
  .question-nav__item--current {
    border-color: var(--color-primary);
    background: rgba(30, 58, 138, 0.15);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
  }
  
  .question-nav__item--completed {
    border-color: var(--color-secondary);
    background: rgba(5, 150, 105, 0.1);
    color: var(--color-secondary);
  }
  
  .question-nav__text {
    font-size: 11px;
    line-height: 1.2;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--color-text-secondary);
    font-weight: 500;
  }
  
  .question-nav__status {
    font-size: 9px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-weight: 600;
  }
  
  .question-nav__number {
    width: 28px;
    height: 28px;
    font-size: 12px;
    background: var(--color-dark-surface-light);
    color: var(--color-text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    transition: all var(--t-normal);
  }
  
  .question-nav__item--current .question-nav__number {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
    color: #fff;
    box-shadow: var(--shadow-glow);
  }
  
  .question-nav__item--completed .question-nav__number {
    background: linear-gradient(135deg, var(--color-secondary), #047857);
    color: #fff;
  }
  .main {
    order: 2;
    gap: 16px;
    max-height: none;
    overflow-y: visible;
  }
  .question__logo--rzi { height: 120px; }
  .question__logo--partners { height: 56px; }
  .header__progress { flex: 1; }
  .progress-bar { width: 100%; }
}

/* Mobile landscape */
@media (max-width: 768px) {
  .layout { padding: 12px; gap: 12px; }
  .question-container { padding: 20px; }
  .question__title { font-size: 22px; line-height: 1.4; }
  .question__logo--rzi { height: 100px; }
  .question__logo--partners { height: 48px; }
  .header__progress { flex: 1; }
  /* Tablets (≤768px): enforce 50/50 split */
  .header__progress { flex-basis: 50%; max-width: 50%; }
  .header__logos { flex-basis: 50%; max-width: 50%; }
  .progress-bar { width: 100%; }
  .header__logo { height: auto; width: 100%; max-width: 340px; }
  .header { padding: 18px 20px; }
  .main { 
    gap: 12px; 
    max-height: none; 
    overflow-y: visible; 
  }
  
  /* Footer button adjustments */
  .footer__content .btn { min-width: 100px; }
  
  /* Horizontal navigation adjustments */
  .sidebar { 
    max-height: 100px; 
    padding: 12px;
  }
  .question-nav--mobile {
    padding: 10px 14px;
  }
  .question-nav__item {
    min-width: 70px;
    padding: 10px 6px;
    border: 1px solid var(--color-dark-surface-light);
    background: var(--color-dark-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
  }
  .question-nav__text {
    font-size: 10px;
    color: var(--color-text-secondary);
    font-weight: 500;
  }
  .question-nav__number {
    width: 24px;
    height: 24px;
    font-size: 11px;
    background: var(--color-dark-surface-light);
    color: var(--color-text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
  }
  
  /* Success modal tablet styles */
  .success-actions { 
    flex-direction: column; 
    gap: 16px;
  }
  .success-actions .btn { 
    width: 100%; 
    min-width: auto;
  }
  .modal__content {
    padding: 32px 24px;
  }
  .success-title {
    font-size: 24px;
  }
  .success-logo--rzi {
    max-height: 120px;
  }
  .success-logo--partners {
    max-width: 100%;
    height: auto;
  }
}

/* Mobile portrait */
@media (max-width: 520px) {
  .layout { padding: 8px; gap: 8px; }
  .header { padding: 12px 14px; }
  /* On mobile portrait, give logos 70% of header width */
  .header__progress { flex-basis: 30%; max-width: 30%; }
  .header__logos { flex-basis: 70%; max-width: 70%; justify-content: flex-end; }
  .footer { padding: 12px 14px; }
  .main { 
    gap: 8px; 
    max-height: none; 
    overflow-y: visible; 
  }
  .question-container { padding: 14px; }
  .question__title { font-size: 20px; line-height: 1.4; }
  .question__logo--rzi { height: 80px; }
  .question__logo--partners { height: 40px; }
  .header__logo { height: auto; width: 100%; max-width: 300px; }
  .header__progress { flex: 1; }
  .progress-bar { width: 100%; }
  .btn { padding: 10px 14px; font-size: 14px; }
  .option__label { padding: 12px 14px; }
  .text-input, .textarea-input, select { padding: 10px 12px; }
  .review-item { padding: 12px; }
  .review-value--textarea { 
    padding: 10px 12px; 
    min-height: 50px; 
    max-height: 150px; 
  }
  
  /* Footer button adjustments for mobile */
  .footer__content .btn { min-width: 80px; }
  
  /* Horizontal navigation for small mobile */
  .sidebar { 
    max-height: 90px; 
    padding: 10px;
  }
  .question-nav--mobile {
    padding: 8px 12px;
  }
  .question-nav__item {
    min-width: 65px;
    padding: 8px 5px;
    border: 1px solid var(--color-dark-surface-light);
    background: var(--color-dark-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
  }
  .question-nav__text {
    font-size: 9px;
    color: var(--color-text-secondary);
    font-weight: 500;
  }
  .question-nav__number {
    width: 22px;
    height: 22px;
    font-size: 10px;
    background: var(--color-dark-surface-light);
    color: var(--color-text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
  }
}

/* Very small mobile */
@media (max-width: 375px) {
  .layout { padding: 6px; gap: 6px; }
  .main { 
    gap: 6px; 
    max-height: none; 
    overflow-y: visible; 
  }
  /* Very small phones: emphasize logos more */
  .header__progress { flex-basis: 20%; max-width: 20%; }
  .header__logos { flex-basis: 80%; max-width: 80%; }
  .question-container { padding: 12px; }
  .question__title { font-size: 18px; line-height: 1.4; }
  .question__logo--rzi { height: 70px; }
  .question__logo--partners { height: 36px; }
  .header__progress { flex: 1; }
  .progress-bar { width: 100%; }
  .btn { padding: 8px 12px; font-size: 13px; }
  .option__label { padding: 10px 12px; }
  .text-input, .textarea-input, select { padding: 8px 10px; }
  .review-item { padding: 10px; }
  .review-value--textarea { 
    padding: 8px 10px; 
    min-height: 40px; 
    max-height: 120px; 
  }
  
  /* Footer button adjustments for very small mobile */
  .footer__content .btn { min-width: 70px; }
  
  /* Horizontal navigation for very small mobile */
  .sidebar { 
    max-height: 80px; 
    padding: 8px;
  }
  .question-nav--mobile {
    padding: 6px 10px;
  }
  .question-nav__item {
    min-width: 60px;
    padding: 6px 4px;
    border: 1px solid var(--color-dark-surface-light);
    background: var(--color-dark-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
  }
  .question-nav__text {
    font-size: 8px;
    color: var(--color-text-secondary);
    font-weight: 500;
  }
  .question-nav__number {
    width: 20px;
    height: 20px;
    font-size: 9px;
    background: var(--color-dark-surface-light);
    color: var(--color-text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
  }
  
  /* Success modal mobile styles */
  .modal__content { 
    padding: 24px 20px; 
    margin: 16px; 
  }
  .success-logo--rzi { 
    max-height: 100px; 
  }
  .success-logo--partners { 
    max-width: 100%;
    height: auto; 
  }
  .success-title { 
    font-size: 22px; 
  }
  .success-message { 
    font-size: 15px; 
  }
  .success-actions { 
    flex-direction: column; 
    gap: 12px;
  }
  .success-actions .btn { 
    width: 100%; 
    min-width: auto;
    padding: 16px 24px;
  }
}

/* Coming Soon (root landing) */
.site-header {
  background: transparent;
  position: relative;
  z-index: 1;
}
.site-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-header__logo {
  height: 40px;
  width: auto;
}

.coming-soon {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: 24px;
}

.coming-soon__hero {
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 60% at 50% 10%, rgba(30,58,138,0.35) 0%, rgba(30,58,138,0.05) 60%, transparent 100%),
              radial-gradient(40% 40% at 90% 80%, rgba(249,115,22,0.25) 0%, transparent 70%),
              radial-gradient(35% 35% at 15% 85%, rgba(5,150,105,0.25) 0%, transparent 65%);
  filter: blur(0.5px);
  z-index: 0;
}

.coming-soon__content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  width: 100%;
  padding: 0 16px;
}

.coming-soon__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.coming-soon__logo img {
  height: clamp(96px, 20vw, 200px);
  width: auto;
  max-width: 80vw;
  filter: brightness(1.1);
  transition: transform var(--t-normal), filter var(--t-normal);
}
.coming-soon__logo img:hover {
  transform: scale(1.02);
  filter: brightness(1.2);
}

.coming-soon__partners {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.coming-soon__partners img {
  height: clamp(28px, 6vw, 56px);
  width: auto;
  max-width: 90vw;
  opacity: 0.95;
}

.coming-soon__title {
  margin: 0 0 8px 0;
  font-size: clamp(22px, 5vw, 40px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.coming-soon__subtitle {
  margin: 0 0 16px 0;
  color: var(--color-text-secondary);
  font-weight: 600;
}
.coming-soon__text { 
  margin: 0 0 20px 0; 
  color: var(--color-text-secondary);
}
.coming-soon__actions { 
  margin-top: 16px; 
  display: flex; 
  gap: 12px; 
  flex-wrap: wrap; 
  justify-content: center;
}

.site-footer {
  margin-top: 24px;
  border-top: 1px solid var(--color-dark-surface-light);
  background: transparent;
}
.site-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-footer__nav { display: flex; gap: 16px; }
.site-footer__link { color: var(--color-text-secondary); text-decoration: none; }
.site-footer__link:hover { color: var(--color-text-primary); text-decoration: underline; }
.site-footer__copy { color: var(--color-text-muted); margin: 0; }

@media (max-width: 640px) {
  .coming-soon { padding: 16px; }
  .coming-soon__text { font-size: 14px; }
}

.btn--cta svg { width: 18px; height: 18px; }
.btn--outline svg { width: 18px; height: 18px; }

/* Registration Widget */
.registration-widget {
  max-width: 300px;
  width: 100%;
  margin: 0 auto 16px auto;
  text-align: center;
}

.registration-widget iframe {
  width: 100%;
  border: none;
  border-radius: var(--radius-lg);
}

/* KonfHub widget styling */
.registration-widget .kh-widget {
  width: 100% !important;
  max-width: 100% !important;
}

.registration-widget .kh-widget button {
  width: 100% !important;
  background: var(--color-primary) !important;
  color: white !important;
  border: none !important;
  border-radius: var(--radius-lg) !important;
  padding: 16px 32px !important;
  font-weight: 700 !important;
  font-size: 16px !important;
  text-transform: uppercase !important;
  letter-spacing: 0.5px !important;
  transition: all var(--t-fast) !important;
  cursor: pointer !important;
  box-shadow: var(--shadow-lg) !important;
}

.registration-widget .kh-widget button:hover {
  background: var(--color-primary-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-glow) !important;
}

/* Success Modal Registration Widget */
.success-actions .registration-widget {
  max-width: 280px;
  margin: 16px auto 0 auto;
}

.success-actions .registration-widget .kh-widget button {
  padding: 14px 28px !important;
  font-size: 15px !important;
}