:root {
  --color-primary: #4FC3F7;
  --color-primary-dark: #29B6F6;
  --color-bg: #E3F2FD;
  --color-white: #FFFFFF;
  --color-accent: #FFB74D;
  --color-accent-dark: #FFA726;
  --color-success: #81C784;
  --color-text: #37474F;
  --color-muted: #78909C;
  --radius-lg: 1.5rem;
  --radius-md: 1rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 2rem;
  --btn-min-height: 3.5rem;
  --tap-min: 44px;
  --app-max-width: 480px;
  --shadow-soft: 0 4px 20px rgba(79, 195, 247, 0.2);
  --font-rounded: "M PLUS Rounded 1c", "Hiragino Maru Gothic ProN", "Hiragino Sans", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  position: relative;
  min-height: 100%;
  -webkit-text-size-adjust: 100%;
}

body.app-body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  color: var(--color-text);
  font-family: var(--font-rounded);
  font-size: var(--font-size-base);
  line-height: 1.6;
  background:
    radial-gradient(circle at 10% 12%, rgba(255, 255, 255, 0.85) 0, transparent 28%),
    radial-gradient(circle at 90% 8%, rgba(255, 183, 77, 0.22) 0, transparent 26%),
    radial-gradient(circle at 80% 70%, rgba(129, 199, 132, 0.15) 0, transparent 30%),
    linear-gradient(180deg, var(--color-bg) 0%, #BBDEFB 100%);
  background-attachment: fixed;
  padding-bottom: env(safe-area-inset-bottom);
  -webkit-tap-highlight-color: transparent;
}

body.app-body::before,
body.app-body::after {
  content: "";
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

body.app-body::before {
  width: 8rem;
  height: 4rem;
  top: 4rem;
  left: 8%;
  background: rgba(255, 255, 255, 0.7);
  filter: blur(2px);
  animation: floatCloud 12s ease-in-out infinite;
}

body.app-body::after {
  width: 0.7rem;
  height: 0.7rem;
  top: 7rem;
  right: 14%;
  background: #FFF59D;
  box-shadow:
    2rem 1.5rem 0 #FFF59D,
    -1.5rem 3rem 0 #FFE082,
    1rem 4.5rem 0 #FFF59D;
  animation: twinkle 3s ease-in-out infinite;
}

.app-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--app-max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.app-header {
  padding: calc(1rem + env(safe-area-inset-top)) 0 0.5rem;
}

.app-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.app-user-bar {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
  flex-shrink: 0;
}

.app-user-name {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--color-text);
  white-space: nowrap;
}

.logout-form {
  margin: 0;
}

.btn-logout {
  border: none;
  background: transparent;
  padding: 0;
  min-height: var(--tap-min);
  color: var(--color-primary-dark);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
}

.btn-logout:hover,
.btn-logout:focus-visible {
  color: var(--color-text);
}

/* Login */
.login-page {
  padding-top: 2rem;
}

.login-title {
  font-size: clamp(1.35rem, 5vw, 1.75rem);
  margin: 0.5rem 0;
  line-height: 1.4;
}

.login-message {
  color: var(--color-muted);
  font-size: var(--font-size-lg);
  margin-bottom: 1.5rem;
}

.login-form {
  max-width: 100%;
}

.login-error {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: #FFEBEE;
  color: #C62828;
  font-weight: 700;
  text-align: center;
}

.input-kids-wrap-full {
  width: 100%;
}

.input-kids-wrap-full .input-kids {
  width: 100%;
}

.app-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.app-brand:hover,
.app-brand:focus-visible {
  color: var(--color-primary-dark);
}

.app-brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  min-width: var(--tap-min);
  min-height: var(--tap-min);
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-soft);
  font-size: 1.25rem;
}

.app-main {
  flex: 1;
  padding: 1.25rem 0 2.5rem;
}

.app-footer {
  padding: 1rem 0 calc(1.5rem + env(safe-area-inset-bottom));
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-muted);
}

h1, h2, h3 {
  font-family: var(--font-rounded);
  font-weight: 800;
  line-height: 1.3;
}

.page-heading {
  margin-bottom: 1.5rem;
}

.page-heading h1 {
  font-size: var(--font-size-xl);
  margin-bottom: 0.5rem;
}

.page-subtext {
  color: var(--color-muted);
  margin: 0;
}

/* Buttons */
.btn-kids,
.btn-action-kids {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  min-height: var(--btn-min-height);
  min-width: var(--tap-min);
  padding: 0.85rem 1.5rem;
  border: none;
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: var(--color-white);
  font-family: inherit;
  font-size: var(--font-size-lg);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 6px 0 var(--color-primary-dark);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
  cursor: pointer;
  user-select: none;
}

.btn-kids:hover,
.btn-action-kids:hover {
  color: var(--color-white);
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 0 var(--color-primary-dark);
}

.btn-kids:active,
.btn-action-kids:active,
.tap-scale:active {
  transform: scale(0.95) translateY(3px);
  box-shadow: 0 2px 0 var(--color-primary-dark);
}

.btn-kids:focus-visible,
.btn-action-kids:focus-visible,
.patient-card:focus-visible,
.chip-selectable:focus-within {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.btn-kids-accent {
  background: var(--color-accent);
  box-shadow: 0 6px 0 var(--color-accent-dark);
}

.btn-kids-accent:hover {
  background: var(--color-accent-dark);
  box-shadow: 0 8px 0 var(--color-accent-dark);
}

.btn-kids-accent:active {
  box-shadow: 0 2px 0 var(--color-accent-dark);
}

.btn-link-kids {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: var(--tap-min);
  color: var(--color-primary-dark);
  font-weight: 700;
  text-decoration: none;
}

.btn-link-kids:hover,
.btn-link-kids:focus-visible {
  color: var(--color-text);
}

.btn-pulse {
  animation: pulseGlow 2s ease-in-out infinite;
}

/* Cards */
.card-kids {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  border: 3px solid rgba(79, 195, 247, 0.35);
}

/* Doctor setup */
.doctor-setup-form {
  text-align: left;
}

.input-kids-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 800;
  font-size: var(--font-size-lg);
  margin-bottom: 0.75rem;
}

.input-kids-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-bg);
  border: 3px solid rgba(79, 195, 247, 0.55);
  border-radius: var(--radius-lg);
  padding: 0.35rem 0.75rem;
}

.input-kids {
  flex: 1;
  min-width: 0;
  min-height: var(--tap-min);
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-text);
  outline: none;
}

.input-kids::placeholder {
  color: #90A4AE;
  font-weight: 700;
  font-size: 1.1rem;
}

.input-kids-suffix {
  flex-shrink: 0;
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-primary-dark);
}

.input-kids-error {
  display: block;
  margin-top: 0.5rem;
  color: #E57373;
  font-weight: 700;
}

.input-kids-wrap:focus-within {
  border-color: var(--color-primary-dark);
  box-shadow: 0 0 0 4px rgba(79, 195, 247, 0.25);
}

/* Home */
.home-page {
  padding-top: 1rem;
}

.home-hero {
  margin-bottom: 2rem;
}

.home-hero-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 5rem;
  height: 5rem;
  margin-bottom: 0.75rem;
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-primary-dark);
  font-size: 2.25rem;
  box-shadow: var(--shadow-soft);
}

.home-emoji {
  font-size: 2.5rem;
  margin: 0;
}

.home-title {
  font-size: clamp(1.75rem, 6vw, 2.25rem);
  margin: 0.5rem 0;
}

.home-subtitle {
  color: var(--color-muted);
  font-size: var(--font-size-lg);
}

/* Patient select */
.patient-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.patient-card-form {
  margin: 0;
}

.patient-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  width: 100%;
  min-height: 100px;
  padding: 1.25rem 1rem;
  background: var(--color-white);
  border: 3px solid rgba(79, 195, 247, 0.35);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  color: var(--color-text);
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.patient-card:hover {
  transform: translateY(-2px);
}

.patient-emoji {
  font-size: 2rem;
  line-height: 1;
}

.patient-emoji-lg {
  font-size: 3.5rem;
}

.patient-icon {
  color: var(--color-primary-dark);
  font-size: 1.25rem;
}

.patient-name {
  font-size: var(--font-size-lg);
  font-weight: 800;
}

/* Consultation */
.consultation-patient {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-xl);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.consult-section {
  margin-bottom: 1.25rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: 1.1rem;
  margin: 0;
}

.section-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.75rem;
  height: 1.75rem;
  padding: 0 0.4rem;
  border-radius: 999px;
  background: var(--color-bg);
  color: var(--color-primary-dark);
  font-size: 0.875rem;
  font-weight: 800;
}

.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.chip-selectable {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: var(--tap-min);
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  border: 3px solid var(--color-primary);
  background: var(--color-white);
  color: var(--color-text);
  font-weight: 700;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.chip-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.chip-check {
  display: none;
  color: var(--color-white);
}

.chip-selected {
  background: var(--color-primary);
  color: var(--color-white);
  animation: chipPop 0.28s ease;
}

.chip-selected .chip-check {
  display: inline-flex;
  animation: fadeIn 0.2s ease;
}

.sticky-action {
  position: sticky;
  bottom: calc(0.75rem + env(safe-area-inset-bottom));
  z-index: 10;
  padding: 0.75rem 0 0.25rem;
  background: linear-gradient(180deg, transparent, rgba(227, 242, 253, 0.92) 30%);
}

/* Result */
.result-card {
  margin-bottom: 1.5rem;
}

.result-patient h1 {
  margin: 0.5rem 0 1rem;
  font-size: var(--font-size-xxl);
}

.result-section {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 2px dashed rgba(79, 195, 247, 0.45);
}

.result-section h2 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.result-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.result-list li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: var(--color-bg);
  font-weight: 700;
}

.empty-state {
  color: var(--color-muted);
  margin: 0;
}

.odaijini {
  text-align: center;
  font-size: clamp(1.75rem, 7vw, 2.5rem);
  font-weight: 800;
  color: var(--color-accent-dark);
  margin: 0.5rem 0 1.5rem;
}

.action-stack {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  align-items: stretch;
}

/* Certificate */
.certificate-page {
  padding-bottom: 1rem;
}

.certificate-body {
  background: var(--color-white);
  color: #222;
  border: 4px double rgba(79, 195, 247, 0.55);
}

.certificate-header {
  text-align: center;
  margin-bottom: 1rem;
}

.certificate-hospital {
  font-size: var(--font-size-lg);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.certificate-title {
  font-size: 1.75rem;
  letter-spacing: 0.35em;
  margin: 0;
}

.certificate-patient {
  font-size: var(--font-size-lg);
  font-weight: 800;
}

.certificate-divider {
  border: none;
  border-top: 2px solid rgba(55, 71, 79, 0.2);
  margin: 1rem 0;
}

.certificate-section h2,
.certificate-section h3 {
  font-size: 1.05rem;
  margin: 0.75rem 0 0.35rem;
}

.certificate-section ul {
  list-style: none;
  padding: 0;
  margin: 0 0 0.5rem;
}

.certificate-message {
  white-space: pre-line;
  font-size: var(--font-size-lg);
  font-weight: 700;
  line-height: 1.7;
}

.certificate-footer {
  margin-top: 1.5rem;
  text-align: right;
  font-weight: 700;
}

.certificate-date {
  color: var(--color-muted);
  font-weight: 600;
}

/* Animations */
.page-enter {
  animation: fadeInUp 0.4s ease-out;
}

.bounce-in {
  animation: bounceIn 0.8s ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes chipPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes bounceIn {
  0% { opacity: 0; transform: scale(0.6); }
  60% { opacity: 1; transform: scale(1.12); }
  100% { transform: scale(1); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 6px 0 var(--color-primary-dark); }
  50% { box-shadow: 0 6px 0 var(--color-primary-dark), 0 0 0 8px rgba(79, 195, 247, 0.25); }
}

@keyframes floatCloud {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(18px); }
}

@keyframes twinkle {
  0%, 100% { opacity: 0.25; }
  50% { opacity: 0.7; }
}

.anim-pop {
  animation: chipPop 0.28s ease;
}

/* Responsive */
@media (min-width: 376px) {
  .patient-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 769px) {
  .patient-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .home-title {
    font-size: 2.25rem;
  }
}

@media (max-width: 375px) {
  .app-container {
    padding-inline: 1rem;
  }

  .chip-selectable {
    font-size: 0.95rem;
  }
}

.btn:focus,
.btn:active:focus,
.form-control:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--color-primary);
}