:root {
  --support-ink: #071426;
  --support-navy: #10284d;
  --support-blue: #1677d2;
  --support-cyan: #65e5df;
  --support-gold: #ffc21c;
  --support-line: rgba(30, 64, 111, 0.18);
  --support-shadow: 0 28px 80px rgba(7, 20, 38, 0.24);
}

.support-widget {
  position: fixed;
  right: clamp(16px, 2vw, 28px);
  bottom: clamp(16px, 2vw, 28px);
  width: max-content;
  max-width: calc(100vw - 24px);
  z-index: 240;
  font-family: "Noto Sans SC", "Inter", "Segoe UI", sans-serif;
}

.support-widget.is-positioned {
  right: auto;
  bottom: auto;
}

.support-widget * {
  box-sizing: border-box;
}

.support-widget .support-launcher {
  position: relative;
  min-height: 56px;
  padding: 0 18px 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  color: #ffffff;
  background:
    radial-gradient(circle at 24% 18%, rgba(255, 194, 28, 0.36), transparent 28%),
    linear-gradient(135deg, var(--support-ink), var(--support-navy) 56%, var(--support-blue));
  box-shadow: var(--support-shadow), 0 16px 34px rgba(22, 119, 210, 0.22);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: -0.01em;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.support-widget:not(.is-dragging) .support-launcher:hover {
  transform: translateY(-2px);
  box-shadow: 0 34px 90px rgba(7, 20, 38, 0.3), 0 18px 38px rgba(22, 119, 210, 0.26);
}

.support-widget.is-dragging .support-launcher {
  cursor: grabbing;
  transform: scale(0.98);
}

.support-widget .support-launcher-mark {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--support-gold), #ffad0d);
  color: var(--support-ink);
  font-size: 13px;
  box-shadow: 0 12px 26px rgba(255, 194, 28, 0.28);
}

.support-widget .support-launcher-mark svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.support-widget .support-launcher-text {
  display: grid;
  gap: 1px;
  text-align: left;
}

.support-widget .support-launcher-text strong {
  font-size: 14px;
  line-height: 1.1;
}

.support-widget .support-launcher-text span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 11px;
  font-weight: 700;
}

.support-widget .support-launcher::after {
  content: "";
  position: absolute;
  top: 8px;
  right: 12px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--support-ink);
  border-radius: 50%;
  background: var(--support-cyan);
}

.support-widget .support-panel {
  position: absolute;
  right: 0;
  bottom: 72px;
  width: min(430px, calc(100vw - 28px));
  max-height: min(760px, calc(100vh - 116px));
  overflow: hidden;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  background:
    radial-gradient(circle at 18% 0%, rgba(22, 119, 210, 0.2), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(238, 247, 255, 0.96));
  box-shadow: 0 36px 94px rgba(7, 20, 38, 0.28);
  color: #14213d;
  transform-origin: right bottom;
  animation: supportPanelIn 0.2s ease-out;
  display: grid;
  grid-template-rows: auto auto minmax(160px, 1fr) auto;
}

.support-widget.is-panel-left .support-panel {
  left: 0;
  right: auto;
  transform-origin: left bottom;
}

.support-widget.is-panel-below .support-panel {
  top: 72px;
  bottom: auto;
  transform-origin: right top;
}

.support-widget.is-panel-left.is-panel-below .support-panel {
  transform-origin: left top;
}

.support-widget .support-panel[hidden] {
  display: none;
}

@keyframes supportPanelIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.support-widget .support-panel-head {
  position: relative;
  overflow: hidden;
  min-height: 150px;
  padding: 22px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  background:
    radial-gradient(circle at 86% 18%, rgba(255, 194, 28, 0.22), transparent 26%),
    linear-gradient(135deg, var(--support-ink), var(--support-navy) 54%, var(--support-blue));
  color: #ffffff;
}

.support-widget .support-panel-kicker {
  margin: 0 0 8px;
  color: var(--support-gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.support-widget .support-panel-title {
  margin: 0;
  color: #ffffff;
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.support-widget .support-panel-copy {
  max-width: 30ch;
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.7;
}

.support-widget .support-close {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 22px;
  line-height: 1;
}

.support-widget .support-topic-row {
  display: flex;
  gap: 8px;
  padding: 14px 16px 2px;
  overflow-x: auto;
  scrollbar-width: none;
}

.support-widget .support-topic-row::-webkit-scrollbar {
  display: none;
}

.support-widget .support-topic {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 0 13px;
  border: 1px solid rgba(22, 119, 210, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  color: #536b88;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 850;
}

.support-widget .support-topic.is-active {
  color: #073140;
  background: linear-gradient(135deg, rgba(101, 229, 223, 0.9), rgba(97, 196, 255, 0.9));
  border-color: transparent;
  box-shadow: 0 10px 20px rgba(22, 119, 210, 0.12);
}

.support-widget .support-thread {
  display: grid;
  gap: 10px;
  min-height: 0;
  overflow-y: auto;
  padding: 16px;
  scrollbar-width: thin;
  scrollbar-color: rgba(22, 119, 210, 0.42) transparent;
}

.support-widget .support-thread::-webkit-scrollbar {
  width: 8px;
}

.support-widget .support-thread::-webkit-scrollbar-track {
  background: transparent;
}

.support-widget .support-thread::-webkit-scrollbar-thumb {
  border: 2px solid rgba(238, 247, 255, 0.96);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--support-blue), var(--support-gold));
}

.support-widget .support-message {
  position: relative;
  max-width: 88%;
  padding: 12px 14px;
  border-radius: 18px;
  white-space: pre-wrap;
  line-height: 1.65;
  font-size: 14px;
  box-shadow: 0 10px 22px rgba(8, 28, 58, 0.08);
}

.support-widget .support-message.is-assistant {
  justify-self: start;
  color: #24364f;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(22, 119, 210, 0.12);
  border-bottom-left-radius: 7px;
}

.support-widget .support-message.is-user {
  justify-self: end;
  color: #071426;
  background: linear-gradient(135deg, var(--support-gold), #ffad0d);
  border-bottom-right-radius: 7px;
}

.support-widget .support-message.is-system {
  justify-self: center;
  max-width: 100%;
  padding: 8px 12px;
  color: #64748b;
  background: rgba(22, 119, 210, 0.08);
  border: 1px dashed rgba(22, 119, 210, 0.18);
  box-shadow: none;
  font-size: 12px;
  text-align: center;
}

.support-widget .support-composer {
  display: grid;
  gap: 10px;
  padding: 14px 16px 16px;
  border-top: 1px solid rgba(22, 119, 210, 0.12);
  background: rgba(255, 255, 255, 0.72);
}

.support-widget .support-input {
  width: 100%;
  min-height: 88px;
  resize: none;
  border: 1px solid rgba(16, 40, 77, 0.13);
  border-radius: 18px;
  padding: 13px 14px;
  outline: none;
  color: #14213d;
  background: #f8fbff;
  font: inherit;
  line-height: 1.55;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.support-widget .support-input::placeholder {
  color: #8292ad;
}

.support-widget .support-input:focus {
  border-color: rgba(22, 119, 210, 0.45);
  box-shadow: 0 0 0 4px rgba(22, 119, 210, 0.12);
}

.support-widget .support-action-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.support-widget .support-action {
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(22, 119, 210, 0.18);
  background: rgba(255, 255, 255, 0.86);
  color: #14345f;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
}

.support-widget .support-action-primary {
  border: 0;
  color: #14213d;
  background: linear-gradient(135deg, var(--support-gold), #ffad0d);
  box-shadow: 0 14px 26px rgba(255, 194, 28, 0.24);
}

.support-widget .support-action:disabled {
  opacity: 0.58;
  cursor: wait;
}

@media (prefers-color-scheme: dark) {
  .support-widget .support-panel {
    border-color: rgba(100, 143, 217, 0.28);
    background:
      radial-gradient(circle at 18% 0%, rgba(22, 119, 210, 0.22), transparent 36%),
      linear-gradient(180deg, rgba(8, 18, 35, 0.98), rgba(6, 14, 29, 0.98));
    color: #eef6ff;
  }

  .support-widget .support-topic,
  .support-widget .support-composer,
  .support-widget .support-message.is-assistant,
  .support-widget .support-input,
  .support-widget .support-action {
    background: rgba(14, 30, 56, 0.86);
    color: #dce9ff;
    border-color: rgba(100, 143, 217, 0.2);
  }

  .support-widget .support-input::placeholder {
    color: rgba(220, 233, 255, 0.48);
  }
}

@media (max-width: 560px) {
  .support-widget {
    right: 12px;
    left: auto;
    bottom: 12px;
  }

  .support-widget .support-launcher {
    margin-left: auto;
  }

  .support-widget .support-panel {
    right: 0;
    width: min(430px, calc(100vw - 24px));
    max-height: calc(100vh - 92px);
  }

  .support-widget .support-panel-head {
    min-height: 132px;
  }

  .support-widget .support-panel-title {
    font-size: 24px;
  }
}