:root {
  /* Colors */
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);
  --color-select-caret: rgba(19, 52, 59, 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

 

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}



/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

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

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

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


/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}


/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

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

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://www.perplexity.ai/fonts/FKGroteskNeue.woff2')
    format('woff2');
}



/* Introduction section */
.intro-section {
  padding: var(--space-32) 0;
  background-color: var(--color-background);
}

.intro-content {
  max-width: 800px;
  margin: 0 auto;
}

.intro-card {
  border-left: 4px solid var(--color-primary);
}

.intro-title {
  color: var(--color-primary);
  margin-bottom: var(--space-16);
  font-size: var(--font-size-2xl);
}

.intro-description {
  font-size: var(--font-size-lg);
  line-height: 1.7;
  margin-bottom: var(--space-24);
  color: var(--color-text);
}

.target-audience,
.partner-hospitals {
  margin-bottom: var(--space-24);
}

.target-audience h4,
.partner-hospitals h4 {
  color: var(--color-earth-brown);
  margin-bottom: var(--space-12);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.target-audience ul,
.hospital-list {
  list-style: none;
  padding: 0;
}

.target-audience li,
.hospital-list li {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  padding-left: var(--space-20);
}

.target-audience li:before,
.hospital-list li:before {
  content: "•";
  color: var(--color-primary);
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* LINE promotion section */
.line-promotion {
  padding: var(--space-32) 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.line-promo-card {
  border: 2px solid var(--color-accent-green);
  background: white;
}

.line-promo-content {
  display: grid;
  gap: var(--space-24);
}

@media (min-width: 768px) {
  .line-promo-content {
    grid-template-columns: 2fr 1fr;
    align-items: center;
  }
}

.line-promo-title {
  color: var(--color-accent-green);
  margin-bottom: var(--space-12);
  font-size: var(--font-size-2xl);
}

.line-promo-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-20);
}

.line-services h4 {
  color: var(--color-text);
  margin-bottom: var(--space-12);
  font-size: var(--font-size-lg);
}

.line-services-list {
  list-style: none;
  padding: 0;
}

.line-services-list li {
  padding: var(--space-6) 0;
  padding-left: var(--space-20);
  position: relative;
  font-size: var(--font-size-md);
}

.line-services-list li:before {
  content: "✓";
  color: var(--color-accent-green);
  font-weight: bold;
  position: absolute;
  left: 0;
}

.line-promo-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-16);
}

.qr-placeholder {
  width: 120px;
  height: 120px;
}

.qr-box {
  width: 100%;
  height: 100%;
  border: 2px dashed var(--color-accent-green);
  border-radius: var(--radius-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
}

.qr-text {
  font-size: var(--font-size-sm);
  color: var(--color-accent-green);
  font-weight: var(--font-weight-medium);
}

.qr-description {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-align: center;
  margin: var(--space-4) 0 0 0;
}

/* LINE button styles */
.btn--line {
  background-color: var(--color-accent-green);
  color: white;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  font-weight: var(--font-weight-medium);
  transition: all var(--duration-normal) var(--ease-standard);
}

.btn--line:hover {
  background-color: var(--color-accent-green-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(6, 199, 85, 0.3);
}

.btn--line:active {
  background-color: var(--color-accent-green-active);
  transform: translateY(0);
}

.line-icon {
  font-size: var(--font-size-lg);
}


/* Modal styles */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  animation: fadeIn var(--duration-normal) var(--ease-standard);
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
}

.modal-content {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 100%;
  animation: slideUp var(--duration-normal) var(--ease-standard);
}

.modal-header {
  padding: var(--space-24) var(--space-24) var(--space-16) var(--space-24);
  text-align: center;
}

.modal-header h3 {
  color: var(--color-success);
  margin: 0;
  font-size: var(--font-size-xl);
}

.modal-body {
  padding: 0 var(--space-24) var(--space-16) var(--space-24);
}

.modal-body p {
  margin-bottom: var(--space-20);
  text-align: center;
}

.line-promotion-modal {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  text-align: center;
  border: 1px solid var(--color-accent-green);
}

.line-promotion-modal h4 {
  color: var(--color-accent-green);
  margin: 0 0 var(--space-8) 0;
  font-size: var(--font-size-lg);
}

.line-promotion-modal p {
  margin-bottom: var(--space-16);
  font-size: var(--font-size-sm);
}

.modal-footer {
  padding: var(--space-16) var(--space-24) var(--space-24) var(--space-24);
  display: flex;
  justify-content: center;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(30px); 
  }
  to { 
    opacity: 1;
    transform: translateY(0); 
  }
}


/* Responsive adjustments */
@media (max-width: 767px) {
  .header {
    padding: var(--space-24) 0;
  }
  
  .logo-text {
    font-size: var(--font-size-3xl);
  }
  
  .header__title {
    font-size: var(--font-size-2xl);
  }
  
  .header__subtitle {
    font-size: var(--font-size-lg);
  }
  
  .intro-section,
  .line-promotion,
  .form-section {
    padding: var(--space-24) 0;
  }
  
  .line-promo-action {
    margin-top: var(--space-16);
  }
}