* { box-sizing: border-box; }

/* Poarta de parolă acoperă tot ecranul; cât timp body e .locked, restul e ascuns. */
body.locked .app { display: none; }
#gate {
  position: fixed;
  inset: 0;
  background: #1c1c1a;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.gate-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 300px;
  padding: 28px;
  border: 1px solid #444441;
  border-radius: 12px;
  background: #181816;
}
.gate-box h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
}
#gate-msg {
  margin: 0;
  font-size: 13px;
  min-height: 16px;
  color: #888780;
}
body {
  font-family: -apple-system, "Segoe UI", Arial, sans-serif;
  background: #1c1c1a;
  color: #ECEAE3;
  margin: 0;
  padding: 20px 32px;
  display: flex;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
}
.app {
  width: 100%;
  max-width: 960px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
h1 {
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 4px;
}
.key-bar {
  display: flex;
  gap: 8px;
  align-items: center;
}
input, textarea, select {
  font-family: inherit;
  font-size: 15px;
  background: #2A2A27;
  color: #ECEAE3;
  border: 1px solid #444441;
  border-radius: 8px;
  padding: 8px 12px;
}
input::placeholder, textarea::placeholder { color: #888780; }
button {
  font-family: inherit;
  font-size: 14px;
  background: transparent;
  color: #ECEAE3;
  border: 1px solid #5F5E5A;
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
}
button:hover { background: #2A2A27; }
button:active { transform: scale(0.98); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
#key-status {
  font-size: 13px;
  color: #888780;
  margin: 0;
}
#model-select {
  font-size: 13px;
  padding: 6px 10px;
}
#messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  border: 1px solid #444441;
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #181816;
}
.placeholder {
  margin: auto;
  color: #888780;
  font-size: 14px;
  text-align: center;
}
.row { display: flex; flex-direction: column; }
.row.user { align-items: flex-end; }
.row.assistant { align-items: flex-start; }
.msg { display: flex; align-items: flex-end; gap: 6px; max-width: 88%; }
.row.user .msg { flex-direction: row-reverse; }
.copy-btn {
  flex: none;
  width: 26px;
  height: 26px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 6px;
  color: #888780;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
}
.row:hover .copy-btn { opacity: 1; }
.copy-btn:hover { background: #2A2A27; color: #ECEAE3; }
.copy-btn svg { width: 15px; height: 15px; }
.copy-btn.copied { color: #5DCAA5; opacity: 1; }
.bubble {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 15px;
  line-height: 1.6;
}
.row.user .bubble { background: #0C447C; color: #E6F1FB; white-space: pre-wrap; }
.row.assistant .bubble { background: #2A2A27; color: #ECEAE3; }
.bubble.error { color: #F09595; white-space: pre-wrap; }
.bubble.pending { color: #888780; white-space: pre-wrap; }
.text-part { white-space: pre-wrap; margin: 0 0 10px; }
.text-part:last-child { margin-bottom: 0; }
.code-block {
  position: relative;
  margin: 4px 0 10px;
  background: #111110;
  border: 1px solid #534AB7;
  border-radius: 8px;
  overflow: hidden;
}
.code-block:last-child { margin-bottom: 0; }
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: #18171F;
  border-bottom: 1px solid #534AB7;
  font-size: 12px;
  color: #AFA9EC;
  font-family: "SF Mono", Consolas, Monaco, monospace;
}
.code-block-copy {
  flex: none;
  width: 24px;
  height: 24px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 6px;
  color: #AFA9EC;
}
.code-block-copy:hover { background: #26215C; color: #ECEAE3; }
.code-block-copy svg { width: 14px; height: 14px; }
.code-block-copy.copied { color: #5DCAA5; }
.code-block pre {
  margin: 0;
  padding: 12px;
  overflow-x: auto;
  font-family: "SF Mono", Consolas, Monaco, monospace;
  font-size: 13px;
  line-height: 1.55;
  color: #ECEAE3;
  white-space: pre;
}
.input-row { display: flex; gap: 8px; }
#user-input { flex: 1; resize: none; }
footer { font-size: 12px; color: #5F5E5A; text-align: center; margin-top: 4px; }