:root {
  --vop-bg: #0f172a;
  --vop-card: #ffffff;
  --vop-card-soft: #f8fafc;
  --vop-text: #0f172a;
  --vop-muted: #64748b;
  --vop-border: #e2e8f0;
  --vop-shadow: 0 24px 80px rgba(15, 23, 42, 0.25);
  --vop-radius: 24px;
  --vop-topbar-height: 72px;
  --vop-main-max: 1120px;
  --vop-main-top: 26px;
  --vop-main-bottom: 42px;
  --vop-project-gap: 20px;
  --vop-chat-radius: 24px;
  --vop-chat-header-y: 24px;
  --vop-chat-header-x: 28px;
  --vop-history-min: 132px;
  --vop-history-max: 26vh;
  --vop-composer-gap: 14px;
  --vop-composer-y: 18px;
  --vop-composer-x: 24px;
  --vop-textarea-min: 150px;
}

.vop-shell,
.vop-login-landing {
  min-height: 100vh;
  background: radial-gradient(circle at top left, #334155 0, #0f172a 42%, #020617 100%);
  color: var(--vop-text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.vop-topbar {
  min-height: var(--vop-topbar-height);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 18px;
  color: #fff;
}

.vop-brand,
.vop-user-menu,
.vop-topbar-right,
.vop-topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.vop-topbar-right {
  margin-left: auto;
}

.vop-topbar-nav {
  min-width: 0;
}

.vop-menu {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.vop-topbar-nav .vop-menu a,
.vop-builder-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 8px 14px;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 800;
}

.vop-builder-button.is-ghost,
.vop-topbar-nav .vop-menu a {
  background: rgba(255, 255, 255, 0.08);
}

.vop-builder-button.is-secondary {
  background: rgba(226, 232, 240, 0.92);
  color: #0f172a;
}

.vop-builder-button.is-primary {
  background: #fff;
  color: #0f172a;
}

.vop-topbar-nav .vop-menu a:hover,
.vop-builder-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.vop-brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: #fff;
  color: #0f172a;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.vop-brand-mark.large {
  width: 64px;
  height: 64px;
  border-radius: 22px;
  margin: 0 auto 20px;
  font-size: 28px;
}

.vop-user-menu {
  position: relative;
}

.vop-user-button {
  min-width: 72px;
  height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}

.vop-user-icon {
  font-size: 14px;
  line-height: 1;
}

.vop-user-dropdown {
  position: absolute;
  top: 54px;
  right: 0;
  width: 260px;
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--vop-shadow);
  padding: 12px;
  z-index: 40;
}

.vop-user-identity {
  padding: 10px 10px 14px;
  border-bottom: 1px solid var(--vop-border);
  margin-bottom: 8px;
}

.vop-user-identity strong,
.vop-user-identity small {
  display: block;
}

.vop-user-identity small {
  color: var(--vop-muted);
  word-break: break-word;
}

.vop-dropdown-action {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 12px 10px;
  color: var(--vop-text);
  border-radius: 12px;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
}

.vop-dropdown-action:hover {
  background: var(--vop-card-soft);
}

.vop-logout {
  color: #b91c1c;
}

.vop-main {
  width: min(var(--vop-main-max), calc(100% - 36px));
  margin: 0 auto;
  padding: var(--vop-main-top) 0 var(--vop-main-bottom);
}

.vop-project-center {
  width: min(640px, 100%);
  margin: 0 auto var(--vop-project-gap);
  text-align: center;
  color: #fff;
}

.vop-project-copy {
  display: grid;
  gap: 4px;
  margin-bottom: 12px;
}

.vop-project-copy span {
  display: inline-flex;
  justify-self: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 4px 10px;
  color: #cbd5e1;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.vop-project-copy h2 {
  margin: 0;
  color: #fff;
  font-size: 22px;
  line-height: 1.2;
}

.vop-project-copy p {
  margin: 0;
  color: #cbd5e1;
  font-size: 15px;
}

.vop-project-center select {
  width: 100%;
  border: 2px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  padding: 18px 24px;
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
  cursor: pointer;
  outline: none;
  box-shadow:
    0 0 0 6px rgba(59, 130, 246, 0.18),
    0 0 34px rgba(96, 165, 250, 0.55),
    var(--vop-shadow);
  transition: box-shadow 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.vop-project-center select:hover,
.vop-project-center select:focus {
  transform: translateY(-1px);
  border-color: #bfdbfe;
  box-shadow:
    0 0 0 8px rgba(96, 165, 250, 0.28),
    0 0 46px rgba(147, 197, 253, 0.72),
    var(--vop-shadow);
}

.vop-project-center.has-project select {
  border-color: #86efac;
  box-shadow:
    0 0 0 6px rgba(34, 197, 94, 0.18),
    0 0 34px rgba(74, 222, 128, 0.48),
    var(--vop-shadow);
}

.vop-chat-card {
  background: var(--vop-card);
  border-radius: var(--vop-chat-radius);
  box-shadow: var(--vop-shadow);
  overflow: hidden;
}

.vop-chat-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: var(--vop-chat-header-y) var(--vop-chat-header-x);
  border-bottom: 1px solid var(--vop-border);
}

.vop-chat-header h1 {
  margin: 0 0 6px;
  font-size: 26px;
}

.vop-chat-header p {
  margin: 0;
  color: var(--vop-muted);
}

.vop-chat-tools {
  padding: 12px var(--vop-chat-header-x);
  border-bottom: 1px solid var(--vop-border);
  background: #fff;
}

.vop-chat-tools .vop-menu a,
.vop-portal-footer-menu .vop-menu a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  border: 1px solid var(--vop-border);
  border-radius: 999px;
  padding: 7px 12px;
  color: #0f172a;
  background: #fff;
  text-decoration: none;
  font-weight: 800;
  font-size: 14px;
}

.vop-chat-tools .vop-menu a:hover,
.vop-portal-footer-menu .vop-menu a:hover {
  border-color: #bfdbfe;
  background: #eff6ff;
}

.vop-portal-footer-menu {
  margin-top: 16px;
  color: #fff;
}

.vop-portal-footer-menu .vop-menu {
  justify-content: center;
}

.vop-chat-history {
  min-height: var(--vop-history-min);
  max-height: var(--vop-history-max);
  overflow: auto;
  background: var(--vop-card-soft);
  padding: 18px 24px;
}

.vop-bubble {
  max-width: 80%;
  padding: 14px 16px;
  border-radius: 18px;
  margin-bottom: 14px;
  white-space: pre-wrap;
}

.vop-bubble strong {
  display: block;
  margin-bottom: 6px;
}

.vop-bubble.is-user {
  margin-left: auto;
  background: #0f172a;
  color: #fff;
}

.vop-bubble.is-agent {
  margin-right: auto;
  background: #fff;
  border: 1px solid var(--vop-border);
}

.vop-chat-input-wrap {
  display: grid;
  gap: var(--vop-composer-gap);
  padding: var(--vop-composer-y) var(--vop-composer-x) calc(var(--vop-composer-y) + 4px);
}

.vop-chat-input-wrap textarea {
  width: 100%;
  min-height: var(--vop-textarea-min);
  resize: vertical;
  border: 1px solid var(--vop-border);
  border-radius: 18px;
  padding: 16px 18px;
  font: inherit;
}

.vop-primary-button,
.vop-secondary-button {
  border: 0;
  border-radius: 999px;
  padding: 12px 20px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.vop-primary-button {
  background: #0f172a;
  color: #fff;
}

.vop-secondary-button {
  background: #e2e8f0;
  color: #0f172a;
}

.vop-attachment-panel {
  display: grid;
  gap: 8px;
}

.vop-attachment-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  border: 1px dashed #94a3b8;
  border-radius: 999px;
  padding: 10px 16px;
  color: #0f172a;
  background: #f8fafc;
  font-weight: 800;
  cursor: pointer;
}

.vop-attachment-button:hover {
  border-color: #2563eb;
  background: #eff6ff;
}

.vop-attachment-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.vop-attachment-panel small {
  color: var(--vop-muted);
}

.vop-attachment-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.vop-attachment-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--vop-border);
  border-radius: 999px;
  padding: 6px 8px 6px 12px;
  background: #fff;
  color: var(--vop-text);
  font-size: 13px;
}

.vop-attachment-list button {
  border: 0;
  border-radius: 999px;
  padding: 4px 8px;
  background: #e2e8f0;
  color: #0f172a;
  cursor: pointer;
  font-weight: 800;
}

.vop-composer-actions {
  display: flex;
  justify-content: flex-end;
}

.vop-modal {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.68);
  display: grid;
  place-items: center;
  padding: 24px;
  z-index: 90;
}

.vop-modal-card {
  width: min(720px, 100%);
  max-height: 90vh;
  overflow: auto;
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--vop-shadow);
  padding: 24px;
}

.vop-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.vop-modal-header h2 {
  margin: 0;
}

.vop-modal-header button {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 999px;
  background: var(--vop-card-soft);
  font-size: 28px;
  cursor: pointer;
}

.vop-form-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 22px;
}

.vop-form-grid label {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

.vop-form-grid input,
.vop-form-grid textarea,
.vop-form-grid select {
  width: 100%;
  border: 1px solid var(--vop-border);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
}

.vop-list {
  display: grid;
  gap: 10px;
}

.vop-list-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border: 1px solid var(--vop-border);
  border-radius: 16px;
  padding: 14px;
}

.vop-list-row small {
  display: block;
  color: var(--vop-muted);
}

.vop-list-actions {
  display: flex;
  gap: 8px;
}

.vop-list-actions button {
  border: 1px solid var(--vop-border);
  border-radius: 999px;
  background: #fff;
  padding: 8px 12px;
  cursor: pointer;
}

.vop-muted {
  color: var(--vop-muted);
}

.vop-login-landing {
  display: grid;
  place-items: center;
  padding: 24px;
}

.vop-login-card {
  width: min(460px, 100%);
  background: #fff;
  border-radius: 28px;
  box-shadow: var(--vop-shadow);
  padding: 38px;
  text-align: center;
}

.vop-login-card h1 {
  margin: 0 0 12px;
}

.vop-login-card p {
  color: var(--vop-muted);
  margin-bottom: 22px;
}

.vop-login-card small {
  display: block;
  margin-top: 18px;
  color: var(--vop-muted);
}

[hidden] {
  display: none !important;
}

@media (max-width: 700px) {
  .vop-topbar {
    padding: 0 16px;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    height: auto;
    padding-top: 16px;
    padding-bottom: 16px;
  }
  .vop-topbar-right {
    width: 100%;
    justify-content: space-between;
    margin-left: 0;
  }
  .vop-topbar-nav,
  .vop-topbar-actions {
    width: 100%;
  }
  .vop-topbar-actions {
    flex-wrap: wrap;
  }
  .vop-chat-header {
    flex-direction: column;
  }
  .vop-chat-input-wrap textarea {
    padding-right: 18px;
  }
  .vop-composer-actions .vop-primary-button,
  .vop-attachment-button {
    width: 100%;
  }
  .vop-bubble {
    max-width: 100%;
  }
}