:root {
  --bg: #0a0a0f;
  --panel: #1a0f2e;
  --panel-deep: #120a22;
  --border: rgba(61, 42, 92, 0.4);
  --accent: #7c3aed;
  --accent-bright: #9f67ff;
  --accent-soft: #a97bff;
  --text: #f5f3f7;
  --muted: #a99ac0;
  --radius: 16px;
}

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

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  line-height: 1.5;
}

::selection {
  background: var(--accent);
  color: #fff;
}

button,
textarea {
  font: inherit;
  color: inherit;
}

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

.site-header {
  text-align: center;
  padding: 28px 16px 10px;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.logo-mark {
  height: 54px;
  width: auto;
  filter: drop-shadow(0 0 10px rgba(124, 58, 237, 0.55));
}

.logo {
  font-size: clamp(2.1rem, 6vw, 3rem);
  font-weight: 800;
  letter-spacing: 0.28em;
  background: linear-gradient(135deg, #b48cff, var(--accent) 55%, #5b21b6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 14px rgba(124, 58, 237, 0.45));
}

.tagline {
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-top: 4px;
}

.layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 60px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stage {
  display: flex;
  flex-direction: column;
}

.camera-box {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.camera-box video,
.camera-box canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
}

.camera-box canvas {
  z-index: 2;
  pointer-events: none;
}

.cam-placeholder {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.85rem;
  background:
    radial-gradient(circle at 50% 45%, rgba(124, 58, 237, 0.08), transparent 60%),
    var(--panel-deep);
}

body.camera-live .cam-placeholder {
  display: none;
}

body.camera-live .camera-box {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(124, 58, 237, 0.35), inset 0 0 14px rgba(124, 58, 237, 0.12);
}

.status-pill {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 3;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(6px);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

body.camera-live .status-pill {
  color: var(--accent-soft);
  border-color: rgba(124, 58, 237, 0.55);
}

.status-pill.alert {
  color: #fff;
  background: rgba(124, 58, 237, 0.55);
}

.status-pill.calibrating {
  color: #e9d5ff;
  border-color: rgba(124, 58, 237, 0.6);
  background: rgba(124, 58, 237, 0.35);
}

/* eye status icon — side of camera */
.eye-indicator {
  position: absolute;
  right: 12px;
  top: 12px;
  z-index: 3;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(6px);
  display: grid;
  place-items: center;
  color: var(--muted);
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.eye-indicator .eye-icn { width: 20px; height: 20px; display: none; }
.eye-indicator.is-open { color: var(--accent-soft); border-color: rgba(124,58,237,0.55); }
.eye-indicator.is-open .eye-open { display: block; }
.eye-indicator.is-closed { color: #fff; background: rgba(124,58,237,0.55); border-color: var(--accent-bright); }
.eye-indicator.is-closed .eye-closed { display: block; }
.eye-indicator.is-noface { color: var(--muted); opacity: 0.7; }
.eye-indicator.is-noface .eye-closed { display: block; }
.eye-indicator.is-calibrating { color: var(--accent-soft); border-color: rgba(124,58,237,0.7); animation: eye-pulse 1.2s ease-in-out infinite; }
.eye-indicator.is-calibrating .eye-open { display: block; }

@keyframes eye-pulse {
  0%,100% { box-shadow: 0 0 8px rgba(124,58,237,0.35); }
  50% { box-shadow: 0 0 18px rgba(124,58,237,0.7); }
}

body:not(.camera-live) .eye-indicator { display: none; }

/* calibration — vertical bar on the side, site colors */
.calib-side {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: 3;
  width: 8px;
  background: rgba(10, 10, 15, 0.45);
  border-left: 1px solid rgba(124, 58, 237, 0.35);
  overflow: hidden;
}

.calib-side-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0%;
  background: linear-gradient(180deg, var(--accent-bright), var(--accent) 55%, #5b21b6);
  box-shadow: 0 0 10px rgba(124,58,237,0.55);
  transition: height 0.15s linear;
}

.calib-label {
  position: absolute;
  left: 50%;
  top: 14px;
  transform: translateX(-50%);
  z-index: 3;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(124,58,237,0.45);
  background: rgba(10, 10, 15, 0.72);
  backdrop-filter: blur(6px);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-soft);
  white-space: nowrap;
}

.btn {
  padding: 0.7rem 1.15rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #221436;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.1s ease;
}

.btn:hover:not(:disabled) {
  border-color: var(--accent);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.btn-primary {
  margin-top: 14px;
  width: 100%;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.95rem;
  padding: 0.85rem 1.15rem;
}

.btn-primary.is-on {
  background: linear-gradient(135deg, var(--accent), #5b21b6);
  border-color: var(--accent-bright);
  animation: pulse-glow 1.8s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%,
  100% {
    box-shadow: 0 0 10px rgba(124, 58, 237, 0.4);
  }
  50% {
    box-shadow: 0 0 28px rgba(124, 58, 237, 0.75);
  }
}

.io {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.field label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.textarea-wrap {
  position: relative;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #221436;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.copy-inside {
  position: absolute;
  left: 8px;
  bottom: 8px;
  z-index: 1;
  padding: 4px 10px;
  font-size: 0.66rem;
  background: rgba(34, 20, 54, 0.92);
  backdrop-filter: blur(4px);
}

.copy-btn:hover { border-color: var(--accent); color: var(--accent-soft); }
.copy-btn:active { transform: translateY(1px); }
.copy-btn.copied { border-color: var(--accent-bright); color: #fff; background: rgba(124,58,237,0.45); }

.voice-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(34, 20, 54, 0.92);
  backdrop-filter: blur(4px);
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.voice-inside {
  position: absolute;
  right: 8px;
  bottom: 8px;
  z-index: 1;
}

.voice-btn:hover { border-color: var(--accent); color: var(--accent-soft); }
.voice-btn:active { transform: translateY(1px); }
.voice-btn.listening {
  color: #fff;
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.9);
  box-shadow: 0 0 14px rgba(239,68,68,0.55);
  animation: voice-pulse 1.1s ease-in-out infinite;
}
.voice-btn.listening .mic-icn { animation: mic-bounce 1.1s ease-in-out infinite; }

.sound-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(34, 20, 54, 0.92);
  backdrop-filter: blur(4px);
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.sound-inside {
  position: absolute;
  right: 8px;
  bottom: 8px;
  z-index: 1;
}
.sound-btn:hover { border-color: var(--accent); color: var(--accent-soft); }
.sound-btn:active { transform: translateY(1px); }
.sound-btn[aria-pressed="true"] { color: var(--muted); opacity: 0.65; border-color: var(--border); }
.sound-btn[aria-pressed="true"] .wave { opacity: 0 !important; }
.sound-btn[aria-pressed="true"] .mute-slash { opacity: 1 !important; }
.sound-btn[aria-pressed="false"] .mute-slash { opacity: 0 !important; }

@keyframes voice-pulse {
  0%,100% { box-shadow: 0 0 10px rgba(239,68,68,0.45); }
  50% { box-shadow: 0 0 22px rgba(239,68,68,0.85); }
}
@keyframes mic-bounce {
  0%,100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}

#morseBox,
#textBox {
  width: 100%;
  min-height: 96px;
  resize: vertical;
  background: var(--panel-deep);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px 36px;
  color: var(--text);
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

#morseBox {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
  font-size: 1.05rem;
  letter-spacing: 0.2em;
  line-height: 1.7;
}

#textBox {
  font-size: 1rem;
  line-height: 1.55;
}

#morseBox.locked,
#textBox.locked {
  cursor: not-allowed;
}

#morseBox.glow-active {
  border-color: var(--accent-bright);
  box-shadow: 0 0 18px rgba(124, 58, 237, 0.55);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn-reset {
  border-color: rgba(124, 58, 237, 0.55);
}

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

.table-wrap {
  margin-top: 14px;
  padding: 10px 12px;
}

.table-wrap h2 {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 4px;
}

.table-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  background: none;
  border: none;
  padding: 0;
  margin: 10px 0 6px;
  cursor: pointer;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: left;
}

.table-toggle:hover { color: var(--accent-soft); }

.toggle-arrow {
  flex-shrink: 0;
  color: var(--muted);
  transition: transform 0.2s ease;
}

.table-toggle[aria-expanded="false"] .toggle-arrow {
  transform: rotate(-90deg);
}

.table-toggle[aria-expanded="false"] + .morse-grid {
  display: none;
}

#tableWrap {
  grid-column: 1 / -1;
}

.table-columns {
  display: grid;
  grid-template-columns: 2.2fr 1fr;
  gap: 16px;
}

.table-col-punct {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

.table-col-punct .morse-grid {
  grid-template-columns: repeat(auto-fill, minmax(68px, 1fr));
}

.table-col:last-child:not(.table-col-punct) {
  border-left: 1px solid var(--border);
  padding-left: 16px;
}

#morseGridDigits {
  grid-template-columns: repeat(auto-fill, minmax(58px, 1fr));
}

@media (max-width: 700px) {
  .table-columns {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .table-col:last-child:not(.table-col-punct) {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--border);
    padding-top: 10px;
  }
}

.morse-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(68px, 1fr));
  gap: 5px;
}

.cell {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 6px;
  padding: 4px 7px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel-deep);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.76rem;
  white-space: nowrap;
  flex-wrap: nowrap;
  overflow: hidden;
}

.ltr {
  font-weight: 700;
  color: var(--accent-soft);
  white-space: nowrap;
  flex-shrink: 0;
}

.code {
  letter-spacing: 0.12em;
  color: var(--text);
  white-space: nowrap;
  flex-shrink: 0;
}

.modal {
  width: min(580px, 92vw);
  max-height: 84vh;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 0;
  box-shadow: 0 0 40px rgba(124, 58, 237, 0.35);
}

.modal::backdrop {
  background: rgba(5, 4, 10, 0.72);
  backdrop-filter: blur(4px);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
}

.modal-head h2 {
  font-size: 1.15rem;
  letter-spacing: 0.08em;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
}

.icon-btn:hover {
  color: var(--text);
  background: rgba(124, 58, 237, 0.15);
}

.modal-body {
  padding: 18px 22px 24px;
  overflow-y: auto;
  color: var(--muted);
  font-size: 0.95rem;
  scrollbar-width: thin;
  scrollbar-color: #7c3aed #120a22;
}

.modal-body::-webkit-scrollbar { width: 8px; height: 8px; }
.modal-body::-webkit-scrollbar-track { background: #120a22; border-radius: 999px; }
.modal-body::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #9f67ff, #7c3aed 55%, #5b21b6);
  border-radius: 999px;
  border: 2px solid #120a22;
}
.modal-body::-webkit-scrollbar-thumb:hover { background: #9f67ff; }
.modal-body::-webkit-scrollbar-button { display: none; width: 0; height: 0; }
.modal-body::-webkit-scrollbar-corner { background: #120a22; }

/* site-wide + dialog fallback — hide white default everywhere */
html { scrollbar-width: thin; scrollbar-color: #7c3aed #0a0a0f; }
html::-webkit-scrollbar, .modal::-webkit-scrollbar { width: 10px; }
html::-webkit-scrollbar-track, .modal::-webkit-scrollbar-track { background: #0a0a0f; }
html::-webkit-scrollbar-thumb, .modal::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #9f67ff, #7c3aed);
  border-radius: 999px;
  border: 2px solid #0a0a0f;
}
html::-webkit-scrollbar-button, .modal::-webkit-scrollbar-button { display: none; }

.modal-body h3 {
  color: var(--accent-soft);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 18px 0 8px;
}

.modal-body strong {
  color: var(--text);
}

.modal-body code {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
  font-size: 0.85em;
  color: var(--accent-soft);
  background: var(--panel-deep);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 6px;
}

.modal-body ol,
.modal-body ul {
  padding-left: 1.3rem;
  display: grid;
  gap: 6px;
}

.credit-links {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
}

.modal-body a {
  color: var(--accent-soft);
  text-decoration: none;
  border-bottom: 1px dashed rgba(124, 58, 237, 0.6);
}

.modal-body a:hover {
  color: #fff;
  border-bottom-style: solid;
}

.about-fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  border-color: rgba(124, 58, 237, 0.55);
  box-shadow: 0 0 16px rgba(124, 58, 237, 0.35);
}

#toast {
  position: fixed;
  left: auto;
  right: 20px;
  top: 58px;
  bottom: auto;
  transform: translateX(10px);
  z-index: 100;
  max-width: min(90vw, 320px);
  padding: 10px 18px;
  border-radius: 999px;
  background: #241639;
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 0.88rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5), 0 0 20px rgba(124, 58, 237, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease, transform 0.32s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#toast.show {
  opacity: 1;
  transform: translateX(0);
}

.quick-start {
  position: fixed;
  left: auto;
  right: 20px;
  top: 58px;
  bottom: auto;
  transform: translateX(10px);
  z-index: 99;
  width: min(92vw, 520px);
  padding: 14px 40px 14px 16px;
  border-radius: 14px;
  background: #1a0f2e;
  border: 1px solid rgba(124,58,237,0.55);
  box-shadow: 0 8px 28px rgba(0,0,0,0.55), 0 0 20px rgba(124,58,237,0.35);
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.5;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.32s cubic-bezier(0.34,1.56,0.64,1);
}
.quick-start.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}
.quick-start[hidden] { display: none; }
.quick-title { color: var(--accent-soft); display: block; margin-bottom: 6px; font-size: 0.88rem; }
.quick-start ol { margin: 0 0 0 18px; display: grid; gap: 3px; color: var(--muted); }
.quick-start ol strong { color: var(--text); }
.quick-start code { font-size: 0.82em; color: var(--accent-soft); background: var(--panel-deep); border: 1px solid var(--border); border-radius: 5px; padding: 1px 5px; }
.quick-close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(34,20,54,0.9);
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.quick-start:hover .quick-close,
.quick-close:focus-visible { opacity: 1; pointer-events: auto; }
.quick-close:hover { border-color: var(--accent); color: #fff; }

@media (min-width: 940px) {
  .layout {
    grid-template-columns: minmax(330px, 440px) 1fr;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary.is-on {
    animation: none;
    box-shadow: 0 0 18px rgba(124, 58, 237, 0.55);
  }
  * {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}