* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --bg-primary: #121214;
  --bg-card: #1c1c21;
  --bg-pill: #26262e;
  --border-color: #2e2e38;
  --text-main: #f1f1f4;
  --text-muted: #8b8b99;
  --accent-orp: #ff3366;
  --accent-ui: #00d2df;
  --accent-ui-hover: #00b4c0;
  --success-color: #2ecc71;
  --danger-color: #ff4d4f;
  --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Courier New", Courier, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

[data-theme="light"] {
  --bg-primary: #f6f8fa;
  --bg-card: #ffffff;
  --bg-pill: #eaecef;
  --border-color: #d0d7de;
  --text-main: #1f2328;
  --text-muted: #656d76;
  --accent-orp: #d63384;
  --accent-ui: #0969da;
  --accent-ui-hover: #0856b3;
  --success-color: #1a7f37;
  --danger-color: #cf222e;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

input, select, textarea {
  user-select: text;
  -webkit-user-select: text;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

body.drag-over::after {
  content: "📂 Suelta aquí tu archivo (.PDF, .EPUB, .DOCX, .TXT)";
  position: fixed;
  inset: 12px;
  background: rgba(0, 210, 223, 0.15);
  border: 3px dashed var(--accent-ui);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  backdrop-filter: blur(6px);
  z-index: 3000;
  pointer-events: none;
}

.sr-only-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
}

.toast {
  position: fixed;
  top: calc(68px + var(--safe-top));
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(15, 15, 18, 0.94);
  color: #ffffff;
  padding: 9px 18px;
  border-radius: 22px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2500;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
  max-width: 92vw;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

header {
  height: calc(58px + var(--safe-top));
  padding: var(--safe-top) 16px 0 16px;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 50;
}

.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 800;
  font-size: 1.15rem;
}

.brand .bolt { color: var(--accent-orp); }
.brand small {
  background: var(--accent-ui);
  color: #fff;
  font-size: 0.6rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 900;
  letter-spacing: 1px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

button {
  background: var(--bg-pill);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 13px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background-color 0.15s, border-color 0.15s, transform 0.1s;
}

button:active {
  transform: scale(0.96);
}

.btn-primary-outline {
  border-color: var(--accent-orp);
  background-color: rgba(255, 51, 102, 0.14);
}

.btn-highlight {
  background-color: rgba(0, 210, 223, 0.15);
  border-color: var(--accent-ui);
  color: var(--accent-ui);
}

.btn-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  font-size: 1rem;
}

main {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  cursor: pointer;
  touch-action: none;
}

.reading-meta {
  position: absolute;
  top: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 94%;
}

.reading-meta #bookTitleDisplay {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 320px;
  font-weight: 600;
}

.badge {
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  padding: 3px 9px;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  white-space: nowrap;
}

.badge-live {
  border-color: var(--success-color);
  color: var(--success-color);
}

.reticle-box {
  position: relative;
  width: 100%;
  max-width: 720px;
  height: 190px;
  background: var(--bg-card);
  border-radius: 18px;
  border: 2px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.18);
  overflow: hidden;
}

.reticle-guide-top, .reticle-guide-bottom {
  position: absolute;
  left: 38%;
  width: 2px;
  height: 20px;
  background-color: var(--accent-orp);
  opacity: 0.85;
  pointer-events: none;
  z-index: 2;
}
.reticle-guide-top { top: 0; }
.reticle-guide-bottom { bottom: 0; }

.word-stage {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 700;
  display: flex;
  position: absolute;
  left: 38%;
  transform: translateX(-50%);
  transform-origin: left center;
  white-space: nowrap;
  letter-spacing: -0.5px;
  will-change: transform;
  pointer-events: none;
}

.w-left { text-align: right; }
.w-orp { color: var(--accent-orp); text-shadow: 0 0 12px rgba(255, 51, 102, 0.45); }
.w-right { text-align: left; }

.gesture-hint {
  position: absolute;
  bottom: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.65;
  text-align: center;
  pointer-events: none;
}

.mobile-hint { display: none; }

footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 10px 18px calc(12px + var(--safe-bottom)) 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 40;
}

.timeline-container {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.progress-hitbox {
  padding: 8px 0;
  cursor: pointer;
  touch-action: none;
}

.progress-track {
  width: 100%;
  height: 8px;
  background: var(--bg-pill);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: var(--accent-ui);
  transition: width 0.06s linear;
}

.timeline-metrics {
  display: flex;
  justify-content: space-between;
  font-size: 0.74rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.playback-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-nav {
  padding: 8px 12px;
  font-size: 0.8rem;
}

.btn-play {
  background: var(--accent-orp);
  color: #ffffff;
  border: none;
  min-width: 135px;
  padding: 10px 18px;
  font-size: 0.95rem;
  border-radius: 10px;
}

.btn-play:hover {
  filter: brightness(1.1);
}

.quick-settings {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pill-control {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pill-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.pill-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  min-width: 68px;
  text-align: center;
}

.btn-pill {
  padding: 5px 10px;
  font-size: 0.78rem;
  border-radius: 6px;
}

.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-backdrop.active {
  display: flex;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  animation: modalEnter 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalEnter {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 { font-size: 1rem; }
.modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 6px;
}

.modal-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.btn-tabs {
  display: flex;
  background: var(--bg-primary);
  padding: 3px;
  border-radius: 8px;
  gap: 3px;
  margin-top: 6px;
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  font-size: 0.76rem;
  padding: 7px 0;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--text-main);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.14);
}

.goto-input-wrapper {
  display: flex;
  gap: 8px;
}

.goto-input-wrapper input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
  outline: none;
}

.goto-input-wrapper input:focus {
  border-color: var(--accent-ui);
}

.btn-primary {
  background: var(--accent-ui);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}

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

.quick-jump-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip {
  background: var(--bg-pill);
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  padding: 5px 10px;
  border-radius: 12px;
  cursor: pointer;
}

.context-preview {
  background: var(--bg-primary);
  padding: 10px 12px;
  border-radius: 8px;
  border-left: 3px solid var(--accent-ui);
}

.context-preview small { color: var(--text-muted); font-size: 0.7rem; }
.context-preview p {
  font-size: 0.82rem;
  font-style: italic;
  margin-top: 4px;
  color: var(--text-main);
  word-break: break-word;
  line-height: 1.4;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.setting-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.setting-text strong { display: block; font-size: 0.85rem; }
.setting-text small { color: var(--text-muted); font-size: 0.73rem; line-height: 1.35; display: block; margin-top: 2px; }

.setting-select {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
}

.setting-toggle {
  width: 22px;
  height: 22px;
  accent-color: var(--accent-ui);
  cursor: pointer;
  flex-shrink: 0;
}

.btn-danger-outline {
  border-color: var(--danger-color);
  color: var(--danger-color);
  background: transparent;
  font-size: 0.78rem;
  cursor: pointer;
}

.loader-card { text-align: center; padding: 24px; max-width: 340px; }
.spinner {
  width: 38px;
  height: 38px;
  border: 3px solid var(--bg-pill);
  border-top-color: var(--accent-ui);
  border-radius: 50%;
  margin: 0 auto 14px auto;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader-progress-bar {
  width: 100%;
  height: 7px;
  background: var(--bg-pill);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 14px;
}
.loader-progress-fill {
  width: 0%;
  height: 100%;
  background: var(--accent-orp);
  transition: width 0.1s linear;
}

@media (max-width: 650px) {
  header { padding: var(--safe-top) 10px 0 10px; }
  .header-actions button span { display: none; }
  .reading-meta #bookTitleDisplay { max-width: 180px; }
  .reticle-box { height: 150px; border-radius: 14px; }
  .desktop-hint { display: none; }
  .mobile-hint { display: inline; }
  .playback-bar { gap: 5px; }
  .btn-nav { padding: 7px 9px; font-size: 0.75rem; }
  .btn-play { min-width: 105px; padding: 9px 14px; }
  .quick-settings { gap: 8px; }
  .pill-label { display: none; }
}