/* PCS InstaSure Demo - Xydus Brand Styling */
/* Light corporate theme matching xydus.digital */

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

/* ================================
   CSS Custom Properties
   ================================ */
:root {
  /* Xydus brand colors */
  --color-navy: #1a2b5f;
  --color-navy-dark: #0f1a3d;
  --color-purple: #8B3A62;
  --color-teal: #0D7377;
  --color-teal-hover: #0a5c5f;
  --color-teal-light: #e8f4f4;

  /* Backgrounds */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-blue-tint: #f0f4ff;
  --color-bg-card: #ffffff;

  /* Status colors */
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-error: #dc2626;
  --color-error-bg: rgba(220, 38, 38, 0.1);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.1);

  /* Text colors */
  --color-text-primary: #1a2b5f;
  --color-text-secondary: #4b5563;
  --color-text-muted: #6b7280;
  --color-text-light: #ffffff;

  /* Borders */
  --color-border: #e5e7eb;
  --color-border-focus: #0D7377;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Typography - Inter geometric sans-serif (similar to National/Metric used by Xydus) */
  --font-display: 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;

  /* Touch target */
  --touch-min: 44px;
}

/* ================================
   Reset & Base
   ================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ================================
   Header
   ================================ */
.header {
  background: var(--color-bg-primary);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.header__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-1);
}

.header__subtitle {
  font-size: var(--text-sm);
  color: var(--color-purple);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ================================
   Navigation
   ================================ */
.nav {
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-3);
}

.nav__list {
  display: flex;
  gap: var(--space-1);
  list-style: none;
  padding: var(--space-1) 0;
  width: 100%;
}

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

.nav__button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: var(--touch-min);
  padding: var(--space-2) var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav__button:hover:not(:disabled) {
  color: var(--color-navy);
  background: var(--color-bg-blue-tint);
}

.nav__button:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 2px;
}

.nav__button--active {
  color: var(--color-text-light);
  background: var(--color-teal);
  border-color: var(--color-teal);
}

.nav__button:disabled {
  color: var(--color-text-muted);
  opacity: 0.5;
  cursor: not-allowed;
}

/* ================================
   Main Content
   ================================ */
.main {
  flex: 1;
  padding: var(--space-4);
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

/* ================================
   Tabs
   ================================ */
.tab {
  display: none;
  animation: fadeIn var(--transition-base) ease-out;
}

.tab--active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ================================
   Card
   ================================ */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  width: 100%;
  box-sizing: border-box;
}

.card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.card__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

/* ================================
   Form Elements
   ================================ */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form__label,
.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-navy);
}

.form__input,
.form-input {
  min-height: var(--touch-min);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.form__input:hover,
.form-input:hover {
  border-color: #d1d5db;
}

.form__input:focus,
.form-input:focus {
  outline: none;
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px rgba(13, 115, 119, 0.15);
}

.form__input--error {
  border-color: var(--color-error);
}

.form__error {
  font-size: var(--text-xs);
  color: var(--color-error);
  min-height: 1rem;
}

.form__hint,
.form-hint {
  font-size: var(--text-xs) !important;
  color: var(--color-text-muted) !important;
  margin-top: var(--space-1) !important;
}

/* ================================
   Alert
   ================================ */
.alert {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  border: 1px solid;
}

.alert--error {
  background: var(--color-error-bg);
  border-color: rgba(220, 38, 38, 0.3);
  color: var(--color-error);
}

.alert--success {
  background: var(--color-success-bg);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--color-success);
}

.alert[hidden] {
  display: none;
}

/* ================================
   Button
   ================================ */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-min);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.button:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 2px;
}

.button--primary {
  color: var(--color-text-light);
  background: var(--color-teal);
}

.button--primary:hover:not(:disabled) {
  background: var(--color-teal-hover);
}

.button--primary:disabled {
  background: #d1d5db;
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.button--secondary {
  color: var(--color-navy);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
}

.button--secondary:hover:not(:disabled) {
  background: var(--color-bg-blue-tint);
  border-color: #d1d5db;
}

.button--secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.button__text {
  position: relative;
  z-index: 1;
}

.button--loading {
  pointer-events: none;
}

.button--loading .button__text {
  visibility: hidden;
}

.button--loading .button__spinner {
  position: absolute;
}

/* ================================
   Spinner
   ================================ */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

.spinner[hidden] {
  display: none;
}

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

/* ================================
   Footer
   ================================ */
.footer {
  background: var(--color-bg-primary);
  padding: var(--space-4);
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer__text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ================================
   Enrollment Module
   ================================ */
.enrollment {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.enrollment__capture {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Camera Container */
.enrollment__camera-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-navy-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.enrollment__video,
.enrollment__canvas,
.enrollment__preview {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.enrollment__canvas {
  display: none;
}

.enrollment__preview {
  z-index: 1;
}

.enrollment__preview[hidden] {
  display: none;
}

.enrollment__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.5);
  z-index: 0;
}

.enrollment__placeholder[hidden] {
  display: none;
}

.enrollment__placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

.enrollment__placeholder-text {
  font-size: var(--text-sm);
}

/* Camera Controls */
.enrollment__camera-controls {
  display: flex;
  gap: var(--space-2);
}

.enrollment__camera-controls .button {
  flex: 1;
}

.enrollment__camera-controls .button[hidden] {
  display: none;
}

/* Upload Area */
.enrollment__upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.enrollment__upload-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.enrollment__upload-divider::before,
.enrollment__upload-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.enrollment__upload-status {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
}

/* Enrollment Form */
.enrollment__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  width: 100%;
  max-width: 100%;
}

.enrollment__controls {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--color-bg-blue-tint);
  margin: 0;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.enrollment__legend {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy);
  padding: 0 var(--space-1);
}

/* Toggle Switch */
.enrollment__toggle-group {
  display: flex;
  align-items: center;
}

.enrollment__toggle {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
}

.enrollment__toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.enrollment__toggle-slider {
  position: relative;
  width: 44px;
  height: 24px;
  background: #d1d5db;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.enrollment__toggle-slider::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.enrollment__toggle input:checked + .enrollment__toggle-slider {
  background: var(--color-teal);
}

.enrollment__toggle input:checked + .enrollment__toggle-slider::before {
  transform: translateX(20px);
}

.enrollment__toggle input:focus-visible + .enrollment__toggle-slider {
  outline: 2px solid var(--color-teal);
  outline-offset: 2px;
}

.enrollment__toggle-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Slider Group */
.enrollment__slider-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.enrollment__slider-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.enrollment__slider {
  flex: 1;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: #d1d5db;
  border-radius: var(--radius-full);
  outline: none;
}

.enrollment__slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--color-teal);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.enrollment__slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--color-teal);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
}

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

.enrollment__slider:disabled {
  opacity: 0.4;
}

.enrollment__slider-value {
  min-width: 40px;
  text-align: right;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-teal);
}

/* Mode Select */
.enrollment__mode-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.enrollment__mode-select {
  cursor: pointer;
  background: var(--color-bg-primary);
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.enrollment__mode-select:disabled {
  opacity: 0.4;
}

/* Disabled controls state */
.enrollment__controls--disabled .enrollment__slider-group,
.enrollment__controls--disabled .enrollment__mode-group {
  opacity: 0.4;
  pointer-events: none;
}

/* Result Display */
.enrollment__result {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  margin-top: var(--space-4);
  border: 1px solid;
}

.enrollment__result[hidden] {
  display: none;
}

.enrollment__result--success {
  background: var(--color-success-bg);
  border-color: rgba(16, 185, 129, 0.3);
}

.enrollment__result--success .enrollment__result-title {
  color: var(--color-success);
}

.enrollment__result--warning {
  background: var(--color-warning-bg);
  border-color: rgba(245, 158, 11, 0.3);
}

.enrollment__result--warning .enrollment__result-title {
  color: var(--color-warning);
}

.enrollment__result--error {
  background: var(--color-error-bg);
  border-color: rgba(220, 38, 38, 0.3);
}

.enrollment__result--error .enrollment__result-title {
  color: var(--color-error);
}

.enrollment__result-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  margin-bottom: var(--space-2);
}

.enrollment__result-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

/* Match Card */
.enrollment__match {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-top: var(--space-3);
}

.enrollment__match-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.enrollment__match-detail {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) 0;
}

.enrollment__match-detail:not(:last-child) {
  border-bottom: 1px solid var(--color-border);
}

.enrollment__match-separator {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-3) 0;
}

/* Warning Message */
.enrollment__warning-message {
  background: var(--color-warning-bg);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin: var(--space-3) 0;
  color: var(--color-text-primary);
  font-size: var(--text-sm);
}

.enrollment__warning-message strong {
  color: var(--color-warning);
  font-weight: 600;
}

/* ================================
   Duplicate Check Module
   ================================ */
.duplicate-check {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.duplicate-check__capture {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.duplicate-check__camera-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-navy-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.duplicate-check__video,
.duplicate-check__canvas,
.duplicate-check__preview {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.duplicate-check__canvas {
  display: none;
}

.duplicate-check__preview {
  z-index: 1;
}

.duplicate-check__preview[hidden] {
  display: none;
}

.duplicate-check__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.5);
  z-index: 0;
}

.duplicate-check__placeholder[hidden] {
  display: none;
}

.duplicate-check__placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

.duplicate-check__placeholder-text {
  font-size: var(--text-sm);
}

.duplicate-check__camera-controls {
  display: flex;
  gap: var(--space-2);
}

.duplicate-check__camera-controls .button {
  flex: 1;
}

.duplicate-check__camera-controls .button[hidden] {
  display: none;
}

.duplicate-check__upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.duplicate-check__upload-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.duplicate-check__upload-divider::before,
.duplicate-check__upload-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.duplicate-check__upload-status {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
}

.duplicate-check__submit {
  width: 100%;
}

.duplicate-check__result {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  margin-top: var(--space-4);
  border: 1px solid;
}

.duplicate-check__result[hidden] {
  display: none;
}

.duplicate-check__result--success {
  background: var(--color-success-bg);
  border-color: rgba(16, 185, 129, 0.3);
}

.duplicate-check__result--success .duplicate-check__result-title {
  color: var(--color-success);
}

.duplicate-check__result--warning {
  background: var(--color-warning-bg);
  border-color: rgba(245, 158, 11, 0.3);
}

.duplicate-check__result--warning .duplicate-check__result-title {
  color: var(--color-warning);
}

.duplicate-check__result--error {
  background: var(--color-error-bg);
  border-color: rgba(220, 38, 38, 0.3);
}

.duplicate-check__result--error .duplicate-check__result-title {
  color: var(--color-error);
}

.duplicate-check__result-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  margin-bottom: var(--space-2);
}

.duplicate-check__result-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.duplicate-check__hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}

.duplicate-check__matches {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.duplicate-check__match {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.duplicate-check__match-ref {
  font-size: var(--text-sm);
  color: var(--color-navy);
  font-weight: 500;
  word-break: break-all;
}

.duplicate-check__match-score {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-warning);
  white-space: nowrap;
  margin-left: var(--space-4);
}

.duplicate-check__match-count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* ================================
   Authentication Module
   ================================ */
.authenticate {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.authenticate__capture {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.authenticate__camera-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-navy-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.authenticate__video,
.authenticate__canvas,
.authenticate__preview {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.authenticate__canvas {
  display: none;
}

.authenticate__preview {
  z-index: 1;
}

.authenticate__preview[hidden] {
  display: none;
}

.authenticate__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.5);
  z-index: 0;
}

.authenticate__placeholder[hidden] {
  display: none;
}

.authenticate__placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

.authenticate__placeholder-text {
  font-size: var(--text-sm);
}

.authenticate__camera-controls {
  display: flex;
  gap: var(--space-2);
}

.authenticate__camera-controls .button {
  flex: 1;
}

.authenticate__camera-controls .button[hidden] {
  display: none;
}

.authenticate__upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.authenticate__upload-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.authenticate__upload-divider::before,
.authenticate__upload-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.authenticate__upload-status {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
}

.authenticate__submit {
  width: 100%;
}

.authenticate__result {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  margin-top: var(--space-4);
  border: 1px solid;
}

.authenticate__result[hidden] {
  display: none;
}

.authenticate__result--success {
  background: var(--color-success-bg);
  border-color: rgba(16, 185, 129, 0.3);
}

.authenticate__result--success .authenticate__result-title {
  color: var(--color-success);
}

.authenticate__result--error {
  background: var(--color-error-bg);
  border-color: rgba(220, 38, 38, 0.3);
}

.authenticate__result--error .authenticate__result-title {
  color: var(--color-error);
}

.authenticate__result-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  margin-bottom: var(--space-2);
}

.authenticate__result-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.authenticate__retry-btn {
  margin-top: var(--space-4);
}

/* ================================
   Utility Classes
   ================================ */
label.button {
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

label.button[hidden] {
  display: none;
}

.button[hidden] {
  display: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ================================
   Tablet+ Responsive (480px+)
   ================================ */
@media (min-width: 480px) {
  .header {
    padding: var(--space-8) var(--space-6);
  }

  .header__title {
    font-size: var(--text-2xl);
  }

  .nav {
    padding: var(--space-3) var(--space-4);
  }

  .main {
    padding: var(--space-6);
    max-width: 540px;
  }

  .card {
    padding: var(--space-8);
  }

  .card__title {
    font-size: var(--text-2xl);
  }
}

/* ================================
   Desktop Responsive (768px+)
   ================================ */
@media (min-width: 768px) {
  .header__title {
    font-size: var(--text-3xl);
  }

  .nav__button {
    padding: var(--space-3) var(--space-6);
  }

  .main {
    padding: var(--space-8);
    max-width: 600px;
  }
}

/* ================================
   Safe Area Support (iOS)
   ================================ */
@supports (padding: max(0px)) {
  .header {
    padding-top: max(var(--space-6), env(safe-area-inset-top));
  }

  .footer {
    padding-bottom: max(var(--space-4), env(safe-area-inset-bottom));
  }

  .main {
    padding-left: max(var(--space-4), env(safe-area-inset-left));
    padding-right: max(var(--space-4), env(safe-area-inset-right));
  }
}