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

body {
  min-height: 100vh;
  padding: 32px 16px 48px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  background: #202124;
  color: #e8eaed;
  font-family: "Google Sans", Roboto, Arial, sans-serif;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
}

.app-shell {
  width: 100%;
  max-width: 860px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gf-card,
.playback-bar {
  width: 100%;
  min-width: 0;
  background: #2d2f31;
  border-radius: 12px;
}

.gf-card {
  position: relative;
  overflow: hidden;
  padding: 22px 26px 0;
}

.gf-top {
  display: grid;
  grid-template-columns: minmax(250px, 290px) minmax(0, 1fr);
  align-items: flex-start;
  gap: 30px;
}

.gf-left {
  min-width: 0;
}

.gf-subtitle {
  margin-bottom: 4px;
  color: #9aa0a6;
  font-size: 13px;
}

.gf-big-value {
  margin-bottom: 12px;
  color: #e8eaed;
  font-size: 31px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.gf-meta {
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  color: #9aa0a6;
  font-size: 12px;
}

.gf-meta .dot {
  color: #5f6368;
}

.gf-inputs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.gf-input-row {
  height: 44px;
  min-width: 0;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #2d2f31;
  border: 1px solid #5f6368;
  border-radius: 4px;
}

.gf-input-row:focus-within {
  border-color: #8ab4f8;
}

.gf-input-num {
  flex: 0 0 96px;
  min-width: 0;
  height: 100%;
  padding: 0 12px;
  background: transparent;
  border: 0;
  border-right: 1px solid #5f6368;
  outline: 0;
  color: #e8eaed;
  font-size: 14px;
}

.gf-select-wrap {
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
}

.gf-select-label {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  color: #e8eaed;
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.gf-chevron {
  flex-shrink: 0;
  color: #9aa0a6;
  font-size: 12px;
}

.gf-right {
  min-width: 0;
  padding-top: 38px;
}

.gf-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 6px;
  margin-bottom: 14px;
}

.gf-tab {
  min-width: 48px;
  flex: 0 0 auto;
  padding: 6px 12px;
  background: transparent;
  border-radius: 100px;
  color: #9aa0a6;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: background 0.15s, color 0.15s;
}

.gf-tab:hover {
  background: rgba(255, 255, 255, 0.06);
}

.gf-tab.active {
  background: #394457;
  color: #8ab4f8;
}

.gf-chart-wrap {
  position: relative;
  width: 100%;
  min-width: 0;
  height: 180px;
}

.gf-yaxis {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 20px;
  z-index: 2;
  width: 42px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
  pointer-events: none;
}

.gf-ylabel,
.gf-xlabel {
  color: #9aa0a6;
  font-size: 11px;
}

#specCanvas.spec-canvas {
  position: absolute;
  top: 0;
  left: 0;
  margin-left: 11px;
  margin-right: 11px;
  cursor: crosshair;
}

.gf-live-dot {
  position: absolute;
  top: 0;
  right: 52px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  color: #e8eaed;
  font-size: 11px;
  text-align: right;
  pointer-events: none;
}

.gf-live-val {
  color: #e8eaed;
  font-size: 12px;
  font-weight: 500;
}

.gf-live-date {
  color: #9aa0a6;
  font-size: 11px;
}

.gf-crosshair {
  position: absolute;
  top: 0;
  bottom: 20px;
  z-index: 6;
  width: 1px;
  display: none;
  background: rgba(232, 234, 237, 0.28);
  pointer-events: none;
}

.gf-crosshair-dot {
  position: absolute;
  left: 50%;
  width: 9px;
  height: 9px;
  background: #81c995;
  border: 2px solid #2d2f31;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.gf-crosshair-box {
  position: absolute;
  top: -5px;
  left: 10px;
  min-width: 116px;
  padding: 6px 8px;
  background: #3c4043;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
  white-space: nowrap;
}

.gf-crosshair-box.flip {
  right: 10px;
  left: auto;
}

.gf-crosshair-val {
  color: #e8eaed;
  font-size: 12px;
  font-weight: 500;
}

.gf-crosshair-lbl {
  margin-top: 2px;
  color: #9aa0a6;
  font-size: 10.5px;
}

.gf-xaxis {
  position: absolute;
  right: 62px;
  bottom: 0;
  left: 0;
  height: 20px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.gf-detail-link {
  margin: 20px -26px 0;
  padding: 14px 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-top: 1px solid #3c4043;
  border-radius: 0 0 12px 12px;
  color: #e8eaed;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1px;
  text-decoration: none;
  transition: background 0.15s;
}

.gf-detail-link:hover {
  background: rgba(255, 255, 255, 0.04);
}

.gf-detail-link .arrow {
  color: #9aa0a6;
  font-size: 16px;
}

.gf-actions {
  position: absolute;
  top: 18px;
  right: 24px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 8px;
}

.gf-btn-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border-radius: 50%;
  color: #9aa0a6;
  cursor: pointer;
  transition: background 0.15s;
}

.gf-btn-icon:hover {
  background: rgba(255, 255, 255, 0.08);
}

.gf-btn-follow {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 15px;
  background: #394457;
  border-radius: 100px;
  color: #8ab4f8;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.15s;
}

.gf-btn-follow:hover {
  background: #44546d;
}

.gf-btn-follow .check {
  font-size: 14px;
}

.playback-bar {
  overflow: hidden;
}

.src-menu-btn {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border-radius: 50%;
  color: #9aa0a6;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.src-menu-btn:hover,
.src-menu-btn.active {
  background: rgba(255, 255, 255, 0.08);
  color: #8ab4f8;
}

/* Drawer styles */
.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 999;
}

.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.src-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 320px;
  max-width: 85%;
  background: #2d2f31;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  display: flex;
  flex-direction: column;
}

.src-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #3c4043;
}

.drawer-header h3 {
  font-size: 15px;
  font-weight: 500;
  color: #e8eaed;
  margin: 0;
}

.drawer-close {
  background: transparent;
  border: 0;
  color: #9aa0a6;
  font-size: 22px;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  transition: color 0.15s;
}

.drawer-close:hover {
  color: #e8eaed;
}

.drawer-body {
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.menu-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.menu-title {
  font-size: 12px;
  font-weight: 500;
  color: #9aa0a6;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
}

.menu-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  color: #e8eaed;
  font-size: 13px;
}

.menu-checkbox input {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: #8ab4f8;
}

.drawer-divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: #9aa0a6;
  font-size: 12px;
  margin: 8px 0;
}

.drawer-divider::before,
.drawer-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid #3c4043;
}

.drawer-divider:not(:empty)::before {
  margin-right: 12px;
}

.drawer-divider:not(:empty)::after {
  margin-left: 12px;
}

.url-input-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.url-label {
  color: #9aa0a6;
  font-size: 12px;
  font-weight: 500;
  text-align: left;
}

.url-row {
  display: flex;
  gap: 8px;
}

.url-input {
  flex: 1;
  min-width: 0;
  padding: 8px 12px;
  background: #202124;
  border: 1px solid #5f6368;
  border-radius: 4px;
  outline: 0;
  color: #e8eaed;
  font-size: 13px;
  transition: border-color 0.15s;
}

.url-input:focus {
  border-color: #8ab4f8;
}

.gf-load-btn {
  padding: 8px 16px;
  background: #394457;
  border-radius: 4px;
  color: #8ab4f8;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s;
}

.gf-load-btn:hover {
  background: #44546d;
}

.gf-load-btn:disabled {
  background: #2a313d;
  color: #5f6368;
  cursor: not-allowed;
}

.upload-zone {
  position: relative;
  padding: 26px 20px;
  border: 1px dashed #5f6368;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}

.upload-zone:hover,
.upload-zone.drag {
  background: rgba(138, 180, 248, 0.05);
  border-color: #8ab4f8;
}

.upload-zone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.upload-icon {
  margin-bottom: 8px;
  color: #8ab4f8;
  font-size: 28px;
}

.upload-main {
  margin-bottom: 4px;
  color: #e8eaed;
  font-size: 14px;
  font-weight: 500;
}

.upload-sub {
  color: #9aa0a6;
  font-size: 12px;
}

.url-status {
  padding: 10px 12px;
  background: #25272a;
  border: 1px solid #3c4043;
  border-radius: 6px;
  color: #9aa0a6;
  font-size: 12px;
  line-height: 1.45;
}

.url-status.ok {
  border-color: rgba(129, 201, 149, 0.55);
  color: #c4e7cd;
}

.url-status.warn {
  border-color: rgba(251, 188, 5, 0.55);
  color: #f6d98b;
}

.url-status.error {
  border-color: rgba(242, 139, 130, 0.55);
  color: #f2b8b5;
}

.playback-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-top: 1px solid #3c4043;
}

.play-btn {
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #394457;
  border-radius: 50%;
  color: #8ab4f8;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.15s;
}

.play-btn:hover {
  background: #44546d;
}

.progress-area {
  min-width: 0;
  flex: 1;
}

.progress-track {
  width: 100%;
  height: 3px;
  margin-bottom: 5px;
  overflow: hidden;
  background: #3c4043;
  border-radius: 3px;
  cursor: pointer;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: #81c995;
  border-radius: 3px;
  transition: width 0.1s linear;
}

.time-row {
  display: flex;
  justify-content: space-between;
  color: #9aa0a6;
  font-size: 11px;
}

.vol-row {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #9aa0a6;
  font-size: 12px;
}

input[type="range"] {
  width: 72px;
  height: 3px;
  background: #3c4043;
  border-radius: 3px;
  outline: 0;
  cursor: pointer;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  width: 12px;
  height: 12px;
  background: #9aa0a6;
  border-radius: 50%;
  cursor: pointer;
  -webkit-appearance: none;
}

audio {
  display: none;
}

.drawer-watermark {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid #3c4043;
  font-size: 10px;
  color: #9aa0a6;
  display: flex;
  align-items: center;
  gap: 3px;
  flex-wrap: wrap;
}

.wm-label {
  font-weight: 500;
}

.wm-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #c4e7cd;
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.15s;
}

.wm-link:hover {
  opacity: 0.8;
}

.wm-link span {
  color: #c4e7cd;
}

.wm-icon {
  width: 10px;
  height: 10px;
  color: #c4e7cd;
  flex-shrink: 0;
}

.wm-separator {
  opacity: 0.6;
}

@media (max-width: 780px) {
  body {
    padding: 12px;
  }

  .gf-card {
    padding: 18px 18px 0;
  }

  .gf-actions {
    position: static;
    justify-content: flex-end;
    margin-bottom: 12px;
  }

  .gf-top {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .gf-right {
    padding-top: 0;
  }

  .gf-big-value {
    font-size: 30px;
  }

  .gf-detail-link {
    margin-right: -18px;
    margin-left: -18px;
    padding-right: 18px;
    padding-left: 18px;
  }

  .preset-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .gf-card {
    padding-right: 14px;
    padding-left: 14px;
  }

  .gf-big-value {
    font-size: 26px;
  }

  .gf-chart-wrap {
    height: 170px;
  }

  .playback-row {
    flex-wrap: wrap;
    align-items: stretch;
  }

  .progress-area {
    flex: 1 1 180px;
  }

  .vol-row {
    width: 100%;
    justify-content: flex-end;
  }

  input[type="range"] {
    width: 120px;
  }
}