.support-chat-launcher {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1200;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 18px;
  border: 0;
  border-radius: var(--radius-pill, 999px);
  background: var(--color-primary, #2563eb);
  color: #fff;
  box-shadow: 0 12px 32px rgba(37, 99, 235, .28);
  font: 600 14px/1 Inter, system-ui, sans-serif;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}

.support-chat-launcher:hover {
  background: var(--color-primary-dark, #1d4ed8);
  box-shadow: 0 16px 36px rgba(37, 99, 235, .35);
  transform: translateY(-1px);
}

.support-chat-launcher:active { transform: translateY(1px); }
.support-chat-launcher svg { width: 20px; height: 20px; flex: 0 0 auto; }

.support-chat-unread {
  display: inline-grid;
  min-width: 21px;
  height: 21px;
  padding: 0 6px;
  border-radius: 999px;
  background: #fff;
  color: var(--color-primary, #2563eb);
  font-size: 11px;
  font-weight: 800;
  place-items: center;
}

.support-chat-dialog {
  position: fixed;
  right: 24px;
  bottom: 84px;
  z-index: 1201;
  display: flex;
  flex-direction: column;
  width: min(390px, calc(100vw - 32px));
  max-height: min(650px, calc(100vh - 112px));
  overflow: hidden;
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: var(--radius-lg, 20px);
  background: var(--color-surface, #fff);
  box-shadow: 0 24px 60px rgba(16, 24, 40, .18);
  color: var(--color-text-primary, #101828);
  font: 14px/1.45 Inter, system-ui, sans-serif;
  padding: 0;
}

.support-chat-dialog[hidden] { display: none; }

.support-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 17px 18px;
  border-bottom: 1px solid var(--color-border, #e5e7eb);
  position: static;
  top: auto;
  z-index: auto;
  min-height: 0;
  background: #fff;
  backdrop-filter: none;
}

.support-chat-title { margin: 0; font-size: 17px; font-weight: 700; }
.support-chat-subtitle { margin-top: 2px; color: var(--color-text-secondary, #667085); font-size: 12px; }

.support-chat-close {
  display: grid;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #667085;
  font-size: 26px;
  line-height: 1;
  place-items: center;
  cursor: pointer;
}

.support-chat-close:hover { background: #f2f4f7; color: #101828; }

.support-chat-history {
  min-height: 64px;
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 10px 14px;
  background: #f8faff;
}

.support-chat-welcome {
  margin: 5px 0;
  color: var(--color-text-secondary, #667085);
  font-size: 13px;
  text-align: center;
}

.support-chat-message {
  width: fit-content;
  max-width: 88%;
  margin: 8px 0;
  padding: 10px 12px;
  border-radius: 14px 14px 14px 4px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(16, 24, 40, .06);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.support-chat-message--user {
  margin-left: auto;
  border-radius: 14px 14px 4px 14px;
  background: var(--color-primary, #2563eb);
  color: #fff;
}

.support-chat-form { padding: 14px 16px 16px; border-top: 1px solid #e5e7eb; }
.support-chat-field { display: block; margin-bottom: 11px; }
.support-chat-label { display: block; margin-bottom: 5px; font-size: 12px; font-weight: 600; }

.support-chat-input,
.support-chat-textarea {
  display: block;
  width: 100%;
  border: 1px solid #d0d5dd;
  border-radius: 10px;
  background: #fff;
  color: #101828;
  font: inherit;
}

.support-chat-input { height: 42px; padding: 0 11px; }
.support-chat-textarea { min-height: 78px; max-height: 150px; padding: 10px 11px; resize: vertical; }
.support-chat-input:disabled, .support-chat-textarea:disabled { background: #f2f4f7; cursor: not-allowed; }

.support-chat-meta {
  display: flex;
  min-height: 18px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 6px 1px 9px;
  color: var(--color-text-secondary, #667085);
  font-size: 11px;
}

.support-chat-counter.is-near-limit { color: var(--color-warning, #d97706); font-weight: 600; }
.support-chat-error { min-height: 20px; margin-bottom: 8px; color: var(--color-danger, #dc2626); font-size: 12px; }

.support-chat-send {
  display: inline-flex;
  width: 100%;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 10px;
  background: var(--color-primary, #2563eb);
  color: #fff;
  font: 600 14px/1 Inter, system-ui, sans-serif;
  cursor: pointer;
}

.support-chat-send:hover { background: var(--color-primary-dark, #1d4ed8); }
.support-chat-send:disabled { opacity: .58; cursor: wait; }

@media (max-width: 520px) {
  .support-chat-launcher { right: 14px; bottom: 14px; padding: 0 15px; }
  .support-chat-dialog {
    right: 8px;
    bottom: 72px;
    width: calc(100vw - 16px);
    max-height: calc(100dvh - 88px);
    border-radius: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .support-chat-launcher { transition: none; }
}