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

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

:root {
  --bg: #0D0D1A;
  --bg-card: #151528;
  --bg-card-hover: #1C1C3A;
  --accent: #C62828;
  --accent-hover: #E53935;
  --green: #0F7B6C;
  --green-light: #14A890;
  --orange: #E6A817;
  --orange-light: #F5C542;
  --red: #C62828;
  --text: #F5F5F5;
  --text-muted: #9E9EB8;
  --text-dim: #6B6B8A;
  --border: #252542;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --transition: 0.2s ease;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Layout */
.app-container {
  max-width: 480px;
  margin: 0 auto;
  padding: 0 16px;
  padding-bottom: 80px;
}

/* Screens */
.screen {
  display: none;
  animation: fadeIn 0.3s ease;
}

.screen.active {
  display: block;
}

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

/* Header */
.header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 0 16px;
}

.header-logo svg {
  width: 40px;
  height: 40px;
}

.header-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.header-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 300;
}

.back-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
  margin: 16px 0 8px -8px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
}

.back-btn:hover { color: var(--accent); }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 12px;
  transition: background var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
}

/* Counter */
.counter-section {
  text-align: center;
  padding: 32px 0;
}

.counter-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.counter-label {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 400;
}

/* Semaphore */
.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.semaphore-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 24px;
}

@media (max-width: 420px) {
  .semaphore-grid {
    grid-template-columns: 1fr;
  }
}

.semaphore-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.semaphore-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.semaphore-dot.red { background: var(--red); box-shadow: 0 0 8px var(--red); }
.semaphore-dot.orange { background: var(--orange); box-shadow: 0 0 8px var(--orange); }
.semaphore-dot.green { background: var(--green); box-shadow: 0 0 8px var(--green); }

.semaphore-name {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.semaphore-ratio {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  width: 100%;
}

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

.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }

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

.btn-secondary:hover { border-color: var(--text-muted); background: var(--bg-card); }

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

.btn-green:hover { background: var(--green-light); }

.btn-sm {
  padding: 10px 18px;
  font-size: 0.85rem;
  width: auto;
}

.btn-row {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.btn-row .btn { flex: 1; }

/* Bill type pills */
.pill-group {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0;
  margin-bottom: 20px;
  -webkit-overflow-scrolling: touch;
}

.pill-group::-webkit-scrollbar { display: none; }

.pill {
  padding: 10px 20px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
}

.pill.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.pill:hover:not(.active) {
  border-color: var(--text-muted);
}

/* Upload area */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 20px;
}

.upload-area:hover, .upload-area.dragover {
  border-color: var(--accent);
  background: rgba(198, 40, 40, 0.05);
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.upload-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.upload-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.upload-preview {
  margin-top: 16px;
  display: none;
}

.upload-preview img {
  max-width: 100%;
  max-height: 200px;
  border-radius: var(--radius-sm);
}

.upload-preview .filename {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Progress */
.progress-section {
  display: none;
  padding: 24px 0;
}

.progress-section.active {
  display: block;
}

.progress-bar-track {
  height: 6px;
  background: var(--bg-card);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 16px;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--orange));
  border-radius: 3px;
  width: 0%;
  transition: width 0.5s ease;
  animation: progressStripe 1s linear infinite;
  background-size: 30px 30px;
  background-image: linear-gradient(
    45deg,
    rgba(255,255,255,0.1) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255,255,255,0.1) 50%,
    rgba(255,255,255,0.1) 75%,
    transparent 75%
  );
}

@keyframes progressStripe {
  from { background-position: 0 0; }
  to { background-position: 30px 0; }
}

.progress-status {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Result */
.result-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.result-provider {
  font-size: 1.3rem;
  font-weight: 700;
}

.result-type {
  font-size: 1.5rem;
}

.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.summary-total {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.summary-breakdown {
  display: flex;
  gap: 16px;
}

.summary-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
}

.summary-stat .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.summary-stat .dot.green { background: var(--green); }
.summary-stat .dot.orange { background: var(--orange); }
.summary-stat .dot.red { background: var(--red); }

.irregular-total {
  background: rgba(198, 40, 40, 0.15);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
  margin-bottom: 20px;
}

.irregular-total-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.irregular-total-amount {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.irregular-total-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* Charge cards */
.charge-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 10px;
  border-left: 4px solid var(--border);
  cursor: pointer;
  transition: background var(--transition);
}

.charge-card:hover { background: var(--bg-card-hover); }

.charge-card.normal { border-left-color: var(--green); }
.charge-card.cuestionable { border-left-color: var(--orange); }
.charge-card.irregular { border-left-color: var(--red); }

.charge-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
}

.charge-desc {
  font-size: 0.9rem;
  font-weight: 500;
  flex: 1;
}

.charge-amount {
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge.normal { background: rgba(15, 123, 108, 0.2); color: var(--green-light); }
.badge.cuestionable { background: rgba(230, 168, 23, 0.2); color: var(--orange-light); }
.badge.irregular { background: rgba(198, 40, 40, 0.2); color: var(--accent-hover); }

.charge-explanation {
  display: none;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.charge-card.expanded .charge-explanation {
  display: block;
}

/* Causa noble */
.charge-card.causa-noble { border-left-color: #7C3AED; }
.badge.causa-noble { background: rgba(124, 58, 237, 0.2); color: #A78BFA; }

.btn-causa-noble {
  display: inline-block;
  margin-top: 10px;
  padding: 6px 14px;
  background: transparent;
  border: 1px solid rgba(124, 58, 237, 0.4);
  border-radius: 16px;
  color: #A78BFA;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-causa-noble:hover {
  background: rgba(124, 58, 237, 0.15);
}

.btn-causa-noble.active {
  background: rgba(124, 58, 237, 0.2);
  border-color: #7C3AED;
}

/* Reclamo */
.complaint-letter {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  font-size: 0.9rem;
  line-height: 1.7;
  white-space: pre-wrap;
  color: var(--text);
}

.authority-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 10px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.channel-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  vertical-align: middle;
  margin-left: 4px;
}

.channel-badge.online {
  background: rgba(15, 123, 108, 0.2);
  color: var(--green-light);
}

.channel-badge.presencial {
  background: rgba(230, 168, 23, 0.2);
  color: var(--orange-light);
}

.authority-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 40px;
  text-align: center;
}

.authority-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.authority-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.authority-contact {
  font-size: 0.8rem;
  color: var(--green-light);
}

/* History */
.history-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 20px;
}

.history-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
}

.history-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.history-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.history-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: background var(--transition);
}

.history-card:hover { background: var(--bg-card-hover); }

.history-card-icon { font-size: 1.5rem; }

.history-card-info { flex: 1; }

.history-card-provider {
  font-weight: 600;
  font-size: 0.95rem;
}

.history-card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.history-card-badge {
  background: rgba(198, 40, 40, 0.2);
  color: var(--accent-hover);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Auth screen */
.auth-container {
  padding-top: 60px;
  text-align: center;
}

.auth-logo {
  margin-bottom: 32px;
}

.auth-logo svg {
  width: 64px;
  height: 64px;
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.auth-toggle {
  display: flex;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  overflow: hidden;
}

.auth-toggle-btn {
  flex: 1;
  padding: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.auth-toggle-btn.active {
  background: var(--accent);
  color: white;
}

.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  transition: border-color var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
}

.form-input::placeholder {
  color: var(--text-dim);
}

.auth-skip {
  display: inline-block;
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: underline;
  background: none;
  border: none;
  font-family: 'Outfit', sans-serif;
}

.auth-skip:hover { color: var(--text); }

.auth-error {
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 12px;
  display: none;
}

/* PWA Install Banner */
.install-banner {
  position: fixed;
  bottom: 80px;
  left: 12px;
  right: 12px;
  background: #151528;
  border: 1px solid #252540;
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  z-index: 9999;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.4);
}

.install-banner-content {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.install-banner-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  flex-shrink: 0;
}

.install-banner-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.install-banner-text strong {
  font-size: 0.9rem;
  color: var(--text);
}

.install-banner-text span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.install-banner-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.install-banner-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

/* Bottom nav */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(13, 13, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
  padding: 8px 0;
  padding-bottom: max(8px, env(safe-area-inset-bottom));
  z-index: 100;
}

.bottom-nav-inner {
  display: flex;
  max-width: 480px;
  width: 100%;
  justify-content: space-around;
}

.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: 'Outfit', sans-serif;
  font-size: 0.7rem;
  cursor: pointer;
  transition: color var(--transition);
}

.nav-btn.active { color: var(--accent); }
.nav-btn:hover { color: var(--text); }

.nav-btn svg {
  width: 24px;
  height: 24px;
}

.nav-btn.scan-btn {
  margin-top: -20px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(198, 40, 40, 0.4);
}

.nav-btn.scan-btn svg { width: 28px; height: 28px; }
.nav-btn.scan-btn:hover { background: var(--accent-hover); }

/* Toast */
.toast-container {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 440px;
  width: calc(100% - 32px);
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  box-shadow: var(--shadow);
}

.toast.success { background: var(--green); color: white; }
.toast.error { background: var(--accent); color: white; }
.toast.info { background: var(--bg-card); color: var(--text); border: 1px solid var(--border); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateY(-16px); }
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--border) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

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

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state-icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state-text { font-size: 0.95rem; }

/* Screen title */
.screen-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-top: 8px;
}

/* Summary text */
.result-summary {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.result-summary:empty {
  display: none;
}