:root {
  --verde: #2E7D32;
  --verde-claro: #4CAF50;
  --verde-alpha10: rgba(46,125,50,0.1);
  --verde-alpha20: rgba(46,125,50,0.2);
  --fondo: #F5F7FA;
  --fondo-card: #FFFFFF;
  --texto: #1A2E40;
  --texto-alpha60: rgba(26,46,64,0.6);
  --texto-alpha70: rgba(26,46,64,0.7);
  --error: #D32F2F;
  --radio: 16px;
  --radio-sm: 12px;
  --espacio-xs: 4px;
  --espacio-sm: 8px;
  --espacio-md: 16px;
  --espacio-lg: 24px;
  --espacio-xl: 32px;
  --espacio-xxl: 48px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.dark {
  --fondo: #121212;
  --fondo-card: #1E1E1E;
  --texto: #E0E0E0;
  --texto-alpha60: rgba(224,224,224,0.6);
  --texto-alpha70: rgba(224,224,224,0.7);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--fondo);
  color: var(--texto);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

#app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* Login */
.login-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--espacio-xl);
  min-height: 100vh;
  min-height: 100dvh;
}

.login-screen .logo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--espacio-md);
}

.login-screen .login-logo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--espacio-md);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.login-screen h1 {
  color: var(--verde);
  font-size: 1.8rem;
  margin-bottom: var(--espacio-xs);
}

.login-screen .subtitle {
  color: var(--texto-alpha70);
  margin-bottom: var(--espacio-xxl);
}

.form-group {
  width: 100%;
  max-width: 400px;
  margin-bottom: var(--espacio-md);
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--verde-alpha20);
  border-radius: var(--radio);
  font-size: 1rem;
  background: var(--fondo-card);
  color: var(--texto);
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus {
  border-color: var(--verde);
}

.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--verde-alpha20);
  border-radius: var(--radio);
  font-size: 1rem;
  background: var(--fondo-card);
  color: var(--texto);
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}

.form-group select:focus {
  border-color: var(--verde);
}

.btn {
  width: 100%;
  max-width: 400px;
  padding: 14px;
  border: none;
  border-radius: var(--radio);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:active:not(:disabled) { opacity: 0.8; }

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

.btn-outline {
  background: transparent;
  color: var(--verde);
  border: 2px solid var(--verde);
}

.btn-text {
  background: none;
  border: none;
  color: var(--verde);
  font-weight: 600;
  font-size: 0.9rem;
}

.btn-danger {
  background: none;
  border: none;
  color: var(--error);
  font-weight: 600;
  font-size: 0.9rem;
}

.error-msg {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: var(--espacio-xs);
}

/* Shell */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

.topbar {
  background: var(--fondo);
  padding: var(--espacio-md);
  padding-top: env(safe-area-inset-top, var(--espacio-md));
  display: flex;
  align-items: center;
  gap: var(--espacio-sm);
}

.topbar h1 {
  color: var(--verde);
  font-size: 1.2rem;
}

.topbar-spacer { flex: 1; }

.topbar button {
  background: none;
  border: none;
  color: var(--verde);
  font-size: 1.4rem;
  cursor: pointer;
  padding: var(--espacio-xs);
}

.content {
  flex: 1;
  padding: var(--espacio-md);
  padding-bottom: 80px;
  overflow-y: auto;
}

/* Bottom Nav */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--verde);
  display: flex;
  justify-content: space-around;
  padding: var(--espacio-sm) 0;
  padding-bottom: calc(var(--espacio-sm) + env(safe-area-inset-bottom, 0px));
  z-index: 100;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: none;
  border: none;
  color: rgba(255,255,255,0.7);
  font-size: 0.65rem;
  cursor: pointer;
  padding: var(--espacio-xs) var(--espacio-sm);
  transition: color 0.2s;
}

.nav-item.active {
  color: white;
  font-weight: 700;
}

.nav-item .icon {
  font-size: 1.3rem;
}

/* Cards */
.card {
  background: var(--fondo-card);
  border-radius: var(--radio);
  box-shadow: var(--shadow);
  margin-bottom: var(--espacio-md);
  overflow: hidden;
}

.card-body {
  padding: var(--espacio-lg);
}

.card-header {
  padding: var(--espacio-md) var(--espacio-lg);
  border-bottom: 1px solid var(--verde-alpha10);
}

.card-title {
  color: var(--verde);
  font-weight: 700;
  font-size: 1.1rem;
}

.card-label {
  font-size: 0.85rem;
  color: var(--texto-alpha70);
  margin-bottom: var(--espacio-xs);
}

.card-value {
  font-size: 1rem;
  color: var(--texto);
}

.card-divider {
  height: 1px;
  background: var(--verde-alpha10);
  margin: var(--espacio-md) 0;
}

/* Shimmer */
.shimmer {
  background: linear-gradient(90deg, var(--fondo-card) 25%, var(--verde-alpha10) 50%, var(--fondo-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radio);
  margin-bottom: var(--espacio-md);
}

.shimmer-card {
  height: 160px;
}

.shimmer-short {
  height: 80px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--espacio-xxl) var(--espacio-lg);
  color: var(--verde);
}

.empty-state .emoji {
  font-size: 3rem;
  margin-bottom: var(--espacio-md);
}

.empty-state p {
  color: var(--texto-alpha60);
  margin-top: var(--espacio-sm);
}

/* FAB */
.fab {
  position: fixed;
  bottom: calc(70px + env(safe-area-inset-bottom, 0px));
  right: var(--espacio-md);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--verde);
  color: white;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Profile */
.profile-card .field {
  margin-bottom: var(--espacio-md);
}

.profile-card .label {
  font-size: 0.85rem;
  color: var(--texto-alpha70);
}

.profile-card .value {
  font-size: 1.05rem;
  font-weight: 500;
}

.profile-card .value-highlight {
  color: var(--verde);
  font-weight: 700;
}

/* Dark mode toggle */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--espacio-lg);
  background: var(--verde-alpha10);
  border-radius: var(--radio);
  margin-bottom: var(--espacio-md);
}

.toggle-row .label {
  display: flex;
  align-items: center;
  gap: var(--espacio-sm);
  font-size: 1rem;
}

.toggle {
  position: relative;
  width: 52px;
  height: 28px;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle .slider {
  position: absolute;
  inset: 0;
  background: var(--verde-alpha20);
  border-radius: 28px;
  cursor: pointer;
  transition: 0.3s;
}

.toggle .slider::before {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: 0.3s;
}

.toggle input:checked + .slider {
  background: var(--verde);
}

.toggle input:checked + .slider::before {
  transform: translateX(24px);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.modal-content {
  background: var(--fondo-card);
  border-radius: var(--radio) var(--radio) 0 0;
  width: 100%;
  max-width: 500px;
  max-height: 85vh;
  overflow-y: auto;
  padding: var(--espacio-lg);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.modal-content h2 {
  color: var(--verde);
  margin-bottom: var(--espacio-md);
}

/* Toast */
.toast {
  position: fixed;
  bottom: calc(80px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  background: var(--texto);
  color: var(--fondo);
  padding: var(--espacio-sm) var(--espacio-lg);
  border-radius: var(--radio-sm);
  font-size: 0.9rem;
  z-index: 300;
  animation: fadeInOut 3s ease;
}

@keyframes fadeInOut {
  0% { opacity: 0; transform: translateX(-50%) translateY(20px); }
  10% { opacity: 1; transform: translateX(-50%) translateY(0); }
  80% { opacity: 1; }
  100% { opacity: 0; }
}

/* Tabs */
.tabs {
  display: flex;
  background: var(--verde);
  border-radius: var(--radio) var(--radio) 0 0;
  overflow: hidden;
}

.tab {
  flex: 1;
  padding: var(--espacio-md);
  text-align: center;
  font-weight: 600;
  font-size: 0.85rem;
  background: none;
  border: none;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
}

.tab.active {
  color: white;
  background: rgba(255,255,255,0.15);
}

/* Activity card extras */
.activity-date {
  color: var(--verde);
  font-weight: 600;
  font-size: 0.9rem;
}

.activity-location {
  color: var(--texto-alpha60);
  font-size: 0.85rem;
  margin-top: var(--espacio-xs);
}

/* Photo grid */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--espacio-sm);
  padding: var(--espacio-md);
}

.photo-grid img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radio-sm);
  cursor: pointer;
  display: block;
  max-height: 180px;
}

/* Spinner */
.spinner {
  width: 36px;
  height: 36px;
  border: 4px solid var(--verde-alpha20);
  border-top: 4px solid var(--verde);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}

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

/* Calendar date badge */
.date-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--verde);
  color: white;
  border-radius: var(--radio-sm);
  padding: var(--espacio-sm) var(--espacio-md);
  min-width: 52px;
}

.date-badge .day {
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1;
}

.date-badge .month {
  font-size: 0.7rem;
  text-transform: uppercase;
}

/* Confirm button */
.confirm-btn {
  padding: var(--espacio-xs) var(--espacio-md);
  border-radius: var(--radio-sm);
  font-size: 0.85rem;
  font-weight: 600;
  border: 2px solid var(--verde);
  background: transparent;
  color: var(--verde);
  cursor: pointer;
  transition: 0.2s;
}

.confirm-btn.active {
  background: var(--verde);
  color: white;
}

/* Progress dots for lobato */
.progress-dots {
  display: flex;
  gap: var(--espacio-md);
  justify-content: space-between;
  padding: var(--espacio-md) 0;
}

.progress-dot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--espacio-xs);
}

.progress-dot .dot {
  font-size: 1.5rem;
}

.progress-dot .dot.active {
  color: var(--verde);
}

.progress-dot .dot.inactive {
  color: var(--texto-alpha60);
  opacity: 0.3;
}

.progress-dot .label {
  font-size: 0.6rem;
  color: var(--texto-alpha60);
  text-align: center;
}

/* Link icon */
.link-icon {
  background: none;
  border: none;
  padding: 4px;
  color: var(--verde);
  font-size: 1rem;
  cursor: pointer;
}

/* Progresion - dropdown reemplazo a los tabs */