.support-widget {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 999;
  font-family: Inter, Arial, sans-serif;
}

.support-toggle {
  width: 64px;
  height: 64px;
  border: 0;
  border-radius: 50%;
  background: #4d7c3a;
  color: #fff;
  font-size: 26px;
  cursor: pointer;
  box-shadow: 0 12px 35px rgba(45, 74, 45, 0.28);
  transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.support-toggle:hover {
  background: #2d4a2d;
  transform: translateY(-2px);
  box-shadow: 0 16px 42px rgba(45, 74, 45, 0.34);
}

.support-window {
  position: absolute;
  right: 0;
  bottom: 78px;
  width: 360px;
  max-width: calc(100vw - 32px);
  height: 520px;
  max-height: calc(100vh - 120px);
  background: #fff;
  border: 1px solid #dfe8d8;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(45, 74, 45, 0.22);
  overflow: hidden;
  display: none;
  flex-direction: column;
}

.support-window.open {
  display: flex;
}

.support-header {
  padding: 18px;
  background: linear-gradient(135deg, #2d4a2d, #5a8a3c);
  color: #fff;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.support-header b {
  display: block;
  font-size: 16px;
  line-height: 1.25;
}

.support-header span {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  line-height: 1.35;
  opacity: 0.85;
}

.support-close {
  flex: 0 0 auto;
  border: 0;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}

.support-close:hover {
  background: rgba(255, 255, 255, 0.24);
  transform: rotate(90deg);
}

.support-messages {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  background: #f7faf5;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.support-message {
  max-width: 82%;
  padding: 11px 13px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.45;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.support-message.bot,
.support-message.system,
.support-message.operator {
  align-self: flex-start;
  background: #fff;
  border: 1px solid #dfe8d8;
  color: #172017;
}

.support-message.user {
  align-self: flex-end;
  background: #4d7c3a;
  color: #fff;
}

.support-quick {
  padding: 12px 14px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  border-top: 1px solid #dfe8d8;
  background: #fff;
}

.support-quick button {
  flex: 0 0 auto;
  border: 1px solid #dfe8d8;
  background: #f0f5ea;
  color: #2d4a2d;
  padding: 8px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.support-quick button:hover {
  background: #e4eedb;
  border-color: #bdd3b0;
}

.support-form {
  display: flex;
  gap: 8px;
  padding: 14px;
  border-top: 1px solid #dfe8d8;
  background: #fff;
}

.support-form input {
  flex: 1;
  min-width: 0;
  border: 1px solid #dfe8d8;
  border-radius: 999px;
  padding: 0 14px;
  outline: none;
  font-size: 14px;
  color: #101828;
}

.support-form input:focus {
  border-color: #5a8a3c;
  box-shadow: 0 0 0 3px rgba(90, 138, 60, 0.14);
}

.support-form button {
  flex: 0 0 auto;
  border: 0;
  background: #4d7c3a;
  color: #fff;
  border-radius: 999px;
  padding: 11px 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.25s ease, opacity 0.25s ease;
}

.support-form button:hover {
  background: #2d4a2d;
}

.support-form button:disabled,
.support-operator:disabled,
.support-toggle:disabled,
.support-close:disabled,
.support-quick button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.support-operator {
  border: 0;
  background: #fff7ed;
  color: #c2410c;
  font-weight: 800;
  padding: 11px 14px;
  cursor: pointer;
  border-top: 1px solid #fed7aa;
  transition: background 0.25s ease;
}

.support-operator:hover {
  background: #ffedd5;
}

@media (max-width: 480px) {
  .support-widget {
    right: 14px;
    bottom: 14px;
  }

  .support-toggle {
    width: 56px;
    height: 56px;
    font-size: 24px;
  }

  .support-window {
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: 82px;
    width: auto;
    max-width: none;
    height: min(500px, calc(100vh - 110px));
    max-height: calc(100vh - 110px);
    border-radius: 22px;
  }

  .support-header {
    padding: 16px;
  }

  .support-message {
    max-width: 88%;
  }

  .support-form {
    padding: 12px;
  }

  .support-form button {
    padding: 10px 14px;
  }
}

@media (max-width: 360px) {
  .support-window {
    left: 10px;
    right: 10px;
    bottom: 76px;
  }

  .support-form {
    gap: 6px;
  }

  .support-form button {
    padding: 10px 12px;
  }
}