/* ═══════════════════════════════════════════════════════════════════════════
   Portfolio Chatbot — style.css
   Design: Clean, professionell, recruiter-safe. Indigo-Akzent (#4f46e5).
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --accent:        #4f46e5;
  --accent-hover:  #4338ca;
  --accent-light:  #eef2ff;
  --bg:            #f3f4f6;
  --surface:       #ffffff;
  --border:        #e5e7eb;
  --text:          #111827;
  --text-muted:    #6b7280;
  --bubble-user:   #4f46e5;
  --bubble-bot:    #f3f4f6;
  --radius-lg:     14px;
  --radius-pill:   999px;
  --shadow:        0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
}

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

/* ── Layout-Container ────────────────────────────────────────────────────── */
.page-wrapper {
  width: 100%;
  max-width: 740px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1rem 1.25rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.header-text h1 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.1rem;
}

.github-link {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s;
}

.github-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ── Suggestion Chips ────────────────────────────────────────────────────── */
.suggestions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.suggestions-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  padding-left: 0.25rem;
}

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

.chip {
  padding: 0.45rem 0.9rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-family: inherit;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
  line-height: 1.4;
}

.chip:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.chip:active {
  transform: translateY(0);
}

/* ── Chat-Fenster ────────────────────────────────────────────────────────── */
.chat-window {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  height: 440px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  scroll-behavior: smooth;
}

/* Scrollbar (Webkit) */
.chat-window::-webkit-scrollbar        { width: 5px; }
.chat-window::-webkit-scrollbar-track  { background: transparent; }
.chat-window::-webkit-scrollbar-thumb  { background: #d1d5db; border-radius: 99px; }

/* ── Nachrichten ─────────────────────────────────────────────────────────── */
.message {
  display: flex;
  max-width: 100%;
}

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

.bubble {
  max-width: 78%;
  padding: 0.7rem 1rem;
  border-radius: 18px;
  font-size: 0.9rem;
  line-height: 1.6;
  word-break: break-word;
}

.message.user .bubble {
  background: var(--bubble-user);
  color: #ffffff;
  border-bottom-right-radius: 4px;
}

.message.assistant .bubble {
  background: var(--bubble-bot);
  color: var(--text);
  border-bottom-left-radius: 4px;
}

/* Markdown-Inhalte in Bot-Bubbles */
.message.assistant .bubble p { margin-bottom: 0.5em; }
.message.assistant .bubble p:last-child { margin-bottom: 0; }

.message.assistant .bubble ul,
.message.assistant .bubble ol {
  padding-left: 1.4em;
  margin-bottom: 0.5em;
}

.message.assistant .bubble li { margin-bottom: 0.2em; }

.message.assistant .bubble strong { font-weight: 700; }

.message.assistant .bubble code {
  background: #e5e7eb;
  border-radius: 4px;
  padding: 0.1em 0.35em;
  font-size: 0.84em;
  font-family: "Fira Code", "Cascadia Code", "Courier New", monospace;
}

.message.assistant .bubble a {
  color: var(--accent);
  text-decoration: underline;
}

/* ── Typing-Indikator ────────────────────────────────────────────────────── */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.75rem 1rem !important;
}

.typing-indicator span {
  display: block;
  width: 8px;
  height: 8px;
  background: #9ca3af;
  border-radius: 50%;
  animation: typing-bounce 1.3s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
  0%, 60%, 100% { transform: translateY(0);    opacity: 0.5; }
  30%            { transform: translateY(-7px); opacity: 1;   }
}

/* ── Eingabeleiste ───────────────────────────────────────────────────────── */
.input-bar {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 0.75rem 0.9rem;
  border: 1.5px solid transparent;
  transition: border-color 0.2s;
}

.input-bar:focus-within {
  border-color: var(--accent);
}

#inputField {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.5;
  resize: none;
  max-height: 130px;
  overflow-y: auto;
}

#inputField::placeholder {
  color: var(--text-muted);
}

#sendBtn {
  flex-shrink: 0;
  padding: 0.55rem 1.2rem;
  background: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: 9px;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  line-height: 1;
}

#sendBtn:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

#sendBtn:active:not(:disabled) {
  transform: translateY(0);
}

#sendBtn:disabled {
  background: #d1d5db;
  cursor: default;
  transform: none;
}

/* ── Branding-Hinweis ────────────────────────────────────────────────────── */
.branding-note {
  text-align: center;
  font-size: 0.7rem;
  color: #9ca3af;
  line-height: 1.5;
}

/* ── Responsiv (Mobile) ──────────────────────────────────────────────────── */
@media (max-width: 520px) {
  body { padding: 0.75rem; align-items: flex-start; }
  .page-wrapper { gap: 0.6rem; }
  .site-header { flex-direction: column; align-items: flex-start; gap: 0.6rem; padding: 0.9rem 1rem; }
  .chat-window { height: 340px; padding: 1rem; }
  .bubble      { max-width: 90%; font-size: 0.875rem; }
  .chip        { font-size: 0.77rem; padding: 0.4rem 0.8rem; }
  #sendBtn     { padding: 0.55rem 0.9rem; font-size: 0.84rem; }
}