/* ==========================================================================
   MAIN CORE CSS & GLASSMORPHISM DESIGN SYSTEM
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  /* Light Mode Color System */
  --bg-color: #f4f6fc;
  --bg-gradient: radial-gradient(circle at 50% -20%, #e0e7ff 0%, #f4f6fc 70%);
  --surface-glass: rgba(255, 255, 255, 0.78);
  --surface-glass-border: rgba(255, 255, 255, 0.6);
  --card-shadow: 0 12px 32px rgba(31, 38, 135, 0.08), 0 2px 6px rgba(0, 0, 0, 0.03);
  
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  --input-bg: rgba(255, 255, 255, 0.85);
  --input-border: #e2e8f0;
  --input-focus-border: #4f46e5;
  --input-focus-glow: rgba(79, 70, 229, 0.2);

  --primary-accent: #4f46e5;
  --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
  --primary-hover: #4338ca;

  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  
  --pill-bg: rgba(226, 232, 240, 0.6);
  --pill-active-bg: #4f46e5;
  --pill-active-text: #ffffff;

  --toast-bg: rgba(255, 255, 255, 0.95);
  --toast-text: #1e293b;

  --badge-bg: rgba(79, 70, 229, 0.1);
  --badge-text: #4f46e5;

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --radius-pill: 9999px;
  
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Reset & Global Elements */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  min-height: 100vh;
  font-family: var(--font-body);
  background: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.5;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

/* Glassmorphism Card Container */
.glass-card {
  background: var(--surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--surface-glass-border);
  box-shadow: var(--card-shadow);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s ease;
}

/* Top Sticky Navigation Bar */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--input-border);
  transition: all 0.3s ease;
}

.app-header-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.nss-brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
}

.nss-brand-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.icon-btn {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s ease;
}

.icon-btn:hover {
  transform: scale(1.05);
  border-color: var(--primary-accent);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

/* Main Container Layout */
.main-app-container {
  max-width: 900px;
  margin: 1.5rem auto 4rem auto;
  padding: 0 1.25rem;
}

/* Sticky Wizard Navigation & Progress Bar */
.wizard-header-sticky {
  position: sticky;
  top: 61px;
  z-index: 95;
  background: var(--surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--surface-glass-border);
  box-shadow: var(--card-shadow);
}

.wizard-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.wizard-step-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.step-badge-pill {
  background: var(--badge-bg);
  color: var(--badge-text);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
}

/* Segmented Progress Bar */
.wizard-progress-track {
  width: 100%;
  height: 6px;
  background: var(--input-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-bottom: 0.85rem;
}

.wizard-progress-fill {
  height: 100%;
  width: 14.28%;
  background: var(--primary-gradient);
  border-radius: var(--radius-pill);
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Step Pills Scroll Bar */
.step-pills-scroll {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scrollbar-width: none;
}

.step-pills-scroll::-webkit-scrollbar {
  display: none;
}

.step-pill {
  background: var(--pill-bg);
  border: 1px solid transparent;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.step-pill.active {
  background: var(--pill-active-bg);
  color: var(--pill-active-text);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.step-pill.completed {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success-color);
}

/* Form Section Headers */
.form-section-header {
  margin-bottom: 1.5rem;
}

.form-section-header h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.form-section-header p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Form Grids */
.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
  position: relative;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.label-required {
  color: var(--danger-color);
  margin-left: 0.2rem;
}

.char-counter {
  font-size: 0.75rem;
  color: var(--text-subtle);
  font-weight: 400;
}

.char-counter.counter-limit {
  color: var(--danger-color);
  font-weight: 600;
}

/* iOS Floating Style Controls */
.input-control {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-main);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all 0.25s ease;
  appearance: none;
  -webkit-appearance: none;
}

textarea.input-control {
  min-height: 90px;
  resize: vertical;
}

.input-control:focus {
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3.5px var(--input-focus-glow);
  background: var(--surface-glass);
}

.input-control.input-valid {
  border-color: var(--success-color);
}

.input-control.input-invalid {
  border-color: var(--danger-color);
  box-shadow: 0 0 0 3.5px rgba(239, 68, 68, 0.2);
}

.error-msg {
  font-size: 0.78rem;
  color: var(--danger-color);
  font-weight: 500;
  margin-top: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.hidden {
  display: none !important;
}

.hidden-field {
  display: none !important;
}

/* Age Live Badge */
.age-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(16, 185, 129, 0.12);
  color: var(--success-color);
  font-weight: 600;
  font-size: 0.82rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-top: 0.35rem;
  width: fit-content;
}

/* Radio Pills Grid (Gender) */
.gender-pills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.radio-pill-card {
  position: relative;
  cursor: pointer;
}

.radio-pill-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.pill-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  transition: all 0.25s ease;
}

.radio-pill-card input[type="radio"]:checked + .pill-content {
  background: var(--primary-accent);
  color: #ffffff;
  border-color: var(--primary-accent);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}



/* Chips Checkbox Grid */
.chips-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.chip-checkbox {
  cursor: pointer;
}

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

.chip-label {
  display: inline-block;
  padding: 0.55rem 1rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  transition: all 0.25s ease;
}

.chip-checkbox input[type="checkbox"]:checked + .chip-label {
  background: var(--primary-accent);
  color: #fff;
  border-color: var(--primary-accent);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

/* Footer Wizard Controls */
.wizard-footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--input-border);
}

.wizard-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-secondary {
  background: var(--input-bg);
  color: var(--text-main);
  border: 1px solid var(--input-border);
}

.btn-secondary:hover {
  background: var(--pill-bg);
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.45);
}

.btn-icon {
  width: 18px;
  height: 18px;
}

.hidden-btn {
  display: none !important;
}

.btn-text {
  background: transparent;
  border: none;
  color: var(--primary-accent);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
}

/* Review Summary Cards */
.review-summary-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.review-section-card {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--input-border);
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--input-border);
}

.review-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.review-step-tag {
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  background: var(--badge-bg);
  color: var(--badge-text);
  border-radius: var(--radius-sm);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

.review-item {
  display: flex;
  flex-direction: column;
}

.review-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.review-val {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  word-break: break-word;
}

/* Toast Container & Notification Item */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 380px;
  width: calc(100% - 48px);
}

.toast-item {
  background: var(--toast-bg);
  color: var(--toast-text);
  border: 1px solid var(--input-border);
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.88rem;
  font-weight: 500;
}

.toast-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.toast-info .toast-icon { color: var(--primary-accent); }
.toast-success .toast-icon { color: var(--success-color); }
.toast-warning .toast-icon { color: var(--warning-color); }

.toast-message {
  flex-grow: 1;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-subtle);
  font-size: 1.2rem;
  cursor: pointer;
}

/* Success Overlay Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(11, 15, 25, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

#confetti-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 301;
}

.success-modal-card {
  position: relative;
  z-index: 302;
  background: var(--surface-glass);
  border: 1px solid var(--surface-glass-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  max-width: 520px;
  width: 100%;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.checkmark-badge-wrapper {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.25rem auto;
}

.success-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.success-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.success-receipt-box {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.75rem;
  text-align: left;
}

.receipt-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}

.receipt-row:last-child {
  margin-bottom: 0;
}

.receipt-label {
  color: var(--text-muted);
}

.receipt-val {
  font-weight: 600;
}

.success-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}