:root {
  --clr-bg: #f8f9fa;
  --clr-bg-alt: #ffffff;
  --clr-fg: #4a4a4a;
  --clr-fg-alt: #2d2d2d;
  --clr-primary: #6b9fc9;
  --clr-accent: #c4a57b;
  --clr-muted: #a8b8c4;
  --clr-tag-bg: #f0f4f7;
  --clr-tag-text: #6a8ba6;
  --shadow: rgba(107, 159, 201, 0.08) 0 4px 16px, rgba(0, 0, 0, 0.04) 0 2px 8px;
  --shadow-hover: rgba(107, 159, 201, 0.12) 0 8px 24px, rgba(0, 0, 0, 0.06) 0 4px 12px;
}

body.dark {
  --clr-bg: #1a2332;
  --clr-bg-alt: #243142;
  --clr-fg: #d4dce6;
  --clr-fg-alt: #e8f0f7;
  --clr-primary: #7ba8d4;
  --clr-accent: #d4a574;
  --clr-muted: #6b8199;
  --clr-tag-bg: #2d3a4d;
  --clr-tag-text: #8fa8c4;
  --shadow: rgba(0, 0, 0, 0.3) 0 4px 16px, rgba(0, 0, 0, 0.2) 0 2px 8px;
  --shadow-hover: rgba(0, 0, 0, 0.4) 0 8px 24px, rgba(0, 0, 0, 0.3) 0 4px 12px;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--clr-fg);
  background: var(--clr-bg);
  font-family: "DM Sans", sans-serif;
  line-height: 1.5;
}

.chat-page {
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.chat-shell {
  width: min(760px, 100%);
  height: min(760px, calc(100vh - 3rem));
  min-height: 520px;
}

button,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  width: min(1100px, 92%);
  min-height: 6rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  color: var(--clr-primary);
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.preview-label {
  color: var(--clr-tag-text);
  font-size: 0.8rem;
}

.clear-button,
.more-button {
  border: 0;
  color: var(--clr-fg);
  background: transparent;
}

.clear-button {
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--clr-tag-bg);
  border-radius: 6px;
  color: var(--clr-tag-text);
  font-size: 0.8rem;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.clear-button:hover,
.clear-button:focus-visible {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

.page {
  width: min(780px, 92%);
  margin: 2.5rem auto 4rem;
}

.intro {
  max-width: 580px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--clr-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--clr-fg-alt);
  font-family: "Nunito", sans-serif;
  font-size: clamp(2.5rem, 7vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.intro > p:last-child {
  margin: 1rem 0 0;
  font-size: 1.05rem;
}

.chat-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--clr-bg-alt);
  border: 1px solid rgba(107, 159, 201, 0.12);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.chat-topbar {
  min-height: 4.25rem;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--clr-tag-bg);
}

.window-actions {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.portfolio-link {
  flex-shrink: 0;
  margin-left: 0.75rem;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  color: var(--clr-fg);
  font-size: 0.8rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.portfolio-link:hover {
  color: var(--clr-fg-alt);
  background: var(--clr-tag-bg);
}

.portfolio-link:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 2px;
}

.is-embedded .portfolio-link {
  display: none;
}

.window-actions button {
  width: 2rem;
  height: 2rem;
  padding: 0;
  display: grid;
  place-items: center;
  color: var(--clr-muted);
  background: transparent;
  border: 0;
  border-radius: 6px;
  font-size: 1.15rem;
  line-height: 1;
}

.window-actions button:hover,
.window-actions button:focus-visible {
  color: var(--clr-primary);
  background: var(--clr-tag-bg);
}

.assistant-identity {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.message-avatar {
  width: 2.45rem;
  height: 2.45rem;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: #fff;
  background: var(--clr-primary);
  border-radius: 50%;
  font-family: "Nunito", sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
}

.assistant-name,
.assistant-status,
.message-label,
.message-time,
.suggestions > p,
.disclaimer {
  margin: 0;
}

.assistant-name {
  color: var(--clr-fg-alt);
  font-size: small;
  font-weight: 500;
}

.assistant-status {
  color: var(--clr-muted);
  font-size: 0.75rem;
}

.assistant-status span {
  width: 0.42rem;
  height: 0.42rem;
  display: inline-block;
  margin-right: 0.25rem;
  background: #7ab68a;
  border-radius: 50%;
}

.more-button {
  padding: 0.35rem;
  color: var(--clr-muted);
  letter-spacing: 0.1em;
}

.messages {
  flex: 1;
  min-height: 0;
  max-height: none;
  padding: 1.5rem 1.25rem;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.message {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.4rem;
}

.message--user {
  justify-content: flex-end;
}

.message--user .message-content {
  align-items: flex-end;
}

.message-content {
  min-width: 0;
  max-width: min(84%, 550px);
  display: flex;
  flex-direction: column;
}

.message-label {
  margin: 0 0 0.35rem;
  color: var(--clr-tag-text);
  font-size: 0.72rem;
  font-weight: 700;
}

.bubble {
  padding: 0.85rem 1rem;
  border-radius: 4px 14px 14px;
  color: var(--clr-fg);
  background: var(--clr-tag-bg);
  font-size: 0.94rem;
}

.bubble p,
.bubble ul,
.bubble ol,
.bubble h3 {
  margin: 0 0 0.65rem;
  overflow-wrap: anywhere;
}

.bubble > :last-child {
  margin-bottom: 0;
}

.bubble ul,
.bubble ol {
  padding-left: 1.25rem;
}

.bubble li + li {
  margin-top: 0.45rem;
}

.bubble h3 {
  color: var(--clr-fg-alt);
  font-family: "Nunito", sans-serif;
  font-size: 1rem;
}

.bubble strong {
  color: var(--clr-fg-alt);
  font-weight: 700;
}

.bubble code {
  padding: 0.08rem 0.3rem;
  background: var(--clr-bg-alt);
  border-radius: 4px;
  font-size: 0.88em;
}

.bubble a {
  color: var(--clr-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

.message--user .bubble {
  border-radius: 14px 4px 14px 14px;
  color: #fff;
  background: var(--clr-primary);
}

.typing-indicator {
  min-width: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
}

.typing-indicator span {
  width: 0.38rem;
  height: 0.38rem;
  background: var(--clr-muted);
  border-radius: 50%;
  animation: typing-pulse 1.2s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.15s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes typing-pulse {
  0%,
  60%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }

  30% {
    opacity: 1;
    transform: translateY(-0.2rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .typing-indicator span {
    animation: none;
    opacity: 0.7;
  }
}

.message-time {
  margin-top: 0.35rem;
  color: var(--clr-muted);
  font-size: 0.7rem;
}

.suggestions {
  padding: 0 1.25rem 1.25rem;
}

.suggestions[hidden] {
  display: none;
}

.chat-page.is-embedded {
  display: block;
  padding: 0;
}

.is-embedded .chat-shell {
  width: 100%;
  height: 100vh;
  min-height: 0;
}

.is-embedded .chat-card {
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.is-embedded .window-actions {
  display: flex;
}

.suggestions > p {
  margin-bottom: 0.6rem;
  color: var(--clr-muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.suggestion-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.suggestion-list button {
  padding: 0.45rem 0.65rem;
  color: var(--clr-tag-text);
  background: transparent;
  border: 1px solid var(--clr-tag-bg);
  border-radius: 999px;
  font-size: 0.78rem;
  text-align: left;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.suggestion-list button:hover,
.suggestion-list button:focus-visible {
  color: var(--clr-primary);
  border-color: var(--clr-primary);
  transform: translateY(-1px);
}

.composer {
  flex-shrink: 0;
  margin: 0 1.25rem;
  padding: 0.4rem 0.45rem 0.4rem 1rem;
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  background: var(--clr-bg);
  border: 1px solid var(--clr-tag-bg);
  border-radius: 12px;
}

.composer:focus-within {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(107, 159, 201, 0.12);
}

.composer textarea {
  width: 100%;
  max-height: 140px;
  padding: 0.4rem 0;
  resize: none;
  color: var(--clr-fg-alt);
  background: transparent;
  border: 0;
  outline: 0;
  font-size: small;
}

.composer textarea::placeholder {
  color: var(--clr-muted);
}

.send-button {
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: #fff;
  background: var(--clr-primary);
  border: 0;
  border-radius: 8px;
  font-size: 1.25rem;
  line-height: 1;
  transition: transform 0.2s ease, background 0.2s ease;
}

.send-button:hover,
.send-button:focus-visible {
  background: #578cb9;
  transform: translateY(-1px);
}

.disclaimer {
  padding: 0.85rem 1.25rem 1.25rem;
  color: var(--clr-muted);
  font-size: 0.72rem;
  text-align: center;
}

.privacy-notice {
  flex: 0 0 auto;
  max-height: 30%;
  margin: 0.65rem 1.25rem 0.9rem;
  overflow-y: auto;
  color: var(--clr-fg);
  font-size: 0.72rem;
  line-height: 1.5;
}

.privacy-notice summary {
  cursor: pointer;
}

.privacy-notice summary:hover {
  color: var(--clr-fg-alt);
}

.privacy-notice summary:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: -2px;
  border-radius: 3px;
}

.privacy-notice p {
  margin: 0.6rem 0 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 600px) {
  .chat-page {
    display: block;
    padding: 0;
  }

  .chat-shell {
    width: 100%;
    height: 100dvh;
    min-height: 0;
  }

  .chat-card {
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .site-header {
    min-height: 5rem;
  }

  .page {
    width: min(94%, 780px);
    margin-top: 1.5rem;
  }

  .intro {
    margin-bottom: 1.75rem;
  }

  .intro > p:last-child {
    font-size: 0.98rem;
  }

  .chat-card {
    border-radius: 12px;
  }

  .chat-topbar,
  .messages,
  .suggestions {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .composer {
    margin: 5px 1rem;
  }

  .disclaimer {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .privacy-notice {
    margin-left: 1rem;
    margin-right: 1rem;
  }

  .preview-label {
    display: none;
  }
}