/* ============================================================
   Opus 5 Chat — tema gelap, responsif
   ============================================================ */

:root {
  --bg: #141413;
  --bg-panel: #1c1c1a;
  --bg-card: #232321;
  --bg-hover: #2a2a27;
  --border: #34342f;
  --text: #ececea;
  --text-muted: #a3a29e;
  --text-faint: #6f6e6a;
  --accent: #d97757;
  --accent-soft: rgba(217, 119, 87, 0.14);
  --accent-border: rgba(217, 119, 87, 0.45);
  --green: #4caf7d;
  --amber: #d9a441;
  --red: #e05d5d;
  --radius: 12px;
  --mono: ui-monospace, SFMono-Regular, "Cascadia Code", Consolas, Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  overflow: hidden;
}

code, pre, .mono { font-family: var(--mono); }

button { font-family: inherit; }

/* ---------- Layout utama ---------- */

.app { display: flex; height: 100vh; }

/* ---------- Sidebar ---------- */

.sidebar {
  width: 304px;
  flex: 0 0 304px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px 16px;
  overflow-y: auto;
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  border-radius: 10px;
  font-size: 20px;
  color: var(--accent);
}

.brand-name { font-weight: 700; letter-spacing: 0.2px; }
.brand-sub { font-size: 12px; color: var(--text-muted); }

.key-status {
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
}

.key-status .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-faint);
  flex: 0 0 8px;
}
.key-status.ok .dot { background: var(--green); }
.key-status.warn .dot { background: var(--amber); }
.key-status.ok { color: #9fd8b5; }
.key-status.warn { color: #e5c78e; }

/* ---------- Kontrol form ---------- */

.settings { display: flex; flex-direction: column; gap: 16px; }

.field { display: flex; flex-direction: column; gap: 6px; }

.field > label, .field > .label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}

input[type="password"], input[type="text"], input[type="number"], textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 9px;
  padding: 9px 11px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

input:focus, textarea:focus { border-color: var(--accent-border); }

textarea { resize: vertical; min-height: 44px; }

.key-row { display: flex; gap: 6px; align-items: stretch; }
.key-row input { flex: 1; }

.check {
  display: flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: var(--text-muted);
  cursor: pointer; user-select: none;
}
.check input { accent-color: var(--accent); }

.hint { margin: 2px 0 0; font-size: 11.5px; color: var(--text-faint); line-height: 1.45; }
.hint code { font-size: 11px; background: var(--bg-card); padding: 1px 4px; border-radius: 4px; }

.field-meta {
  font-size: 12px; color: var(--text-faint);
  border-top: 1px dashed var(--border);
  padding-top: 12px;
}
.field-meta code { color: var(--accent); background: var(--accent-soft); padding: 1px 5px; border-radius: 4px; }

/* Switch */
.switch-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; padding: 7px 0;
  font-size: 14px; cursor: pointer; user-select: none;
}
.switch-row input { display: none; }
.switch {
  position: relative;
  width: 38px; height: 22px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background 0.15s, border-color 0.15s;
  flex: 0 0 38px;
}
.switch::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: transform 0.15s, background 0.15s;
}
.switch-row input:checked + .switch { background: var(--accent-soft); border-color: var(--accent-border); }
.switch-row input:checked + .switch::after { transform: translateX(16px); background: var(--accent); }

/* ---------- Tombol ---------- */

.btn {
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  border-radius: 9px;
  padding: 9px 14px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--bg-hover); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: #e0886a; border-color: #e0886a; }

.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--red); border-color: var(--red); }

.btn-block { width: 100%; }

.btn-icon {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  border-radius: 8px;
  padding: 6px 9px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}
.btn-icon:hover { background: var(--bg-hover); color: var(--text); }

.sidebar-foot { margin-top: auto; }

/* ---------- Area chat ---------- */

.chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.chat-head {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(20, 20, 19, 0.85);
  backdrop-filter: blur(6px);
}

.chat-title { font-weight: 700; display: flex; align-items: center; gap: 8px; }

.pill {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  border-radius: 999px;
  padding: 2px 9px;
}

.head-right { margin-left: auto; }

.state-indicator { font-size: 12.5px; color: var(--accent); }
.state-indicator.busy::after {
  content: "···";
  animation: pulse 1s infinite;
}

@keyframes pulse { 50% { opacity: 0.25; } }

.chat-scroll { flex: 1; overflow-y: auto; scroll-behavior: smooth; }

.chat-list {
  max-width: 860px;
  margin: 0 auto;
  padding: 26px 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ---------- Empty state ---------- */

.empty {
  text-align: center;
  padding: 60px 12px 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.empty-logo {
  font-size: 44px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  width: 84px; height: 84px;
  display: grid; place-items: center;
  border-radius: 22px;
}
.empty h1 { margin: 14px 0 0; font-size: 24px; }
.empty p { margin: 0; color: var(--text-muted); font-size: 14px; max-width: 460px; }
.suggestions {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 10px;
  width: 100%;
  max-width: 760px;
}
.suggestion {
  text-align: left;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 13px 15px;
  color: var(--text);
  font-size: 13.5px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.suggestion:hover { border-color: var(--accent-border); background: var(--bg-hover); }
.suggestion .s-tag { display: block; font-size: 11px; color: var(--accent); font-weight: 700; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.5px; }

/* ---------- Pesan ---------- */

.msg { display: flex; gap: 12px; }
.msg.user { justify-content: flex-end; }

.avatar {
  width: 34px; height: 34px;
  flex: 0 0 34px;
  display: grid; place-items: center;
  border-radius: 10px;
  font-size: 17px;
  margin-top: 2px;
}
.msg.assistant .avatar { background: var(--accent-soft); border: 1px solid var(--accent-border); color: var(--accent); }

.bubble {
  max-width: 86%;
  border-radius: var(--radius);
  padding: 12px 16px;
  overflow-wrap: break-word;
  min-width: 0;
}

.msg.user .bubble {
  background: linear-gradient(135deg, #3a2a22, #463026);
  border: 1px solid rgba(217, 119, 87, 0.35);
  white-space: pre-wrap;
}

.msg.assistant .bubble {
  background: var(--bg-card);
  border: 1px solid var(--border);
  flex: 1;
  max-width: none;
}

.msg.user.failed .bubble { border-color: var(--red); background: #3a2222; }

.msg-error {
  margin-top: 10px;
  background: rgba(224, 93, 93, 0.12);
  border: 1px solid rgba(224, 93, 93, 0.45);
  color: #f0b3b3;
  border-radius: 9px;
  padding: 9px 12px;
  font-size: 13px;
  display: flex; align-items: center; gap: 8px;
}
.msg-error .retry {
  margin-left: auto;
  flex-shrink: 0;
  background: transparent;
  border: 1px solid rgba(224, 93, 93, 0.55);
  color: #f0b3b3;
  border-radius: 7px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}
.msg-error .retry:hover { background: rgba(224, 93, 93, 0.2); }

.msg-note {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-faint);
  font-style: italic;
}

/* Markdown di dalam bubble */
.bubble .text > *:first-child { margin-top: 0; }
.bubble .text > *:last-child { margin-bottom: 0; }
.bubble .text p { margin: 8px 0; }
.bubble .text h1, .bubble .text h2, .bubble .text h3,
.bubble .text h4, .bubble .text h5, .bubble .text h6 { margin: 14px 0 7px; line-height: 1.3; }
.bubble .text h1 { font-size: 1.35em; } .bubble .text h2 { font-size: 1.22em; }
.bubble .text h3 { font-size: 1.12em; } .bubble .text h4, .bubble .text h5, .bubble .text h6 { font-size: 1em; }
.bubble .text ul, .bubble .text ol { margin: 8px 0; padding-left: 22px; }
.bubble .text blockquote {
  margin: 8px 0; padding: 4px 12px;
  border-left: 3px solid var(--accent-border);
  color: var(--text-muted);
  background: rgba(217, 119, 87, 0.06);
  border-radius: 0 8px 8px 0;
}
.bubble .text hr { border: none; border-top: 1px solid var(--border); margin: 14px 0; }
.bubble .text a { color: var(--accent); }

.inline-code {
  background: #191918;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 0.88em;
}

.codeblock {
  margin: 10px 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: #111110;
}
.codeblock-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 12px;
  background: #1b1b19;
  border-bottom: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--text-muted);
  font-family: var(--mono);
}
.copy-code {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 11px;
  border-radius: 6px;
  padding: 2px 9px;
  cursor: pointer;
  font-family: var(--sans);
}
.copy-code:hover { color: var(--accent); border-color: var(--accent-border); }
.codeblock pre { margin: 0; padding: 12px 14px; overflow-x: auto; font-size: 13px; line-height: 1.5; }
.codeblock code { background: none; padding: 0; border: none; }

/* Kursor streaming */
.cursor {
  display: inline-block;
  width: 8px; height: 15px;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.9s steps(1) infinite;
  border-radius: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

/* Thinking */
.thinking-wrap { margin-bottom: 8px; }
.thinking-wrap details {
  border: 1px dashed var(--border);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 13px;
}
.thinking-wrap summary {
  cursor: pointer;
  padding: 7px 12px;
  color: var(--text-muted);
  user-select: none;
  list-style: none;
}
.thinking-wrap summary::before { content: "💡 "; }
.thinking-wrap summary::-webkit-details-marker { display: none; }
.thinking-wrap summary::after { content: " ▸"; float: right; color: var(--text-faint); }
.thinking-wrap details[open] summary::after { content: " ▾"; }
.thinking-body {
  padding: 2px 14px 12px;
  color: var(--text-muted);
  white-space: pre-wrap;
  max-height: 260px;
  overflow-y: auto;
  border-top: 1px dashed var(--border);
  padding-top: 10px;
  margin: 0 2px;
}

/* Kartu tool */
.tools { display: flex; flex-direction: column; gap: 8px; margin: 10px 0; }
.tool {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 9px;
  background: #1c1c1a;
  overflow: hidden;
}
.tool-head {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px;
  font-size: 13px;
}
.tool-head .t-ico { font-size: 14px; }
.tool-head code { font-size: 12.5px; color: var(--accent); }
.tool-status { margin-left: auto; font-size: 11.5px; color: var(--text-faint); display: flex; align-items: center; gap: 6px; }
.tool-status .spin {
  width: 11px; height: 11px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: rot 0.7s linear infinite;
}
@keyframes rot { to { transform: rotate(360deg); } }
.tool-status.ok { color: var(--green); }
.tool-status.err { color: var(--red); }
.tool details { border-top: 1px solid var(--border); }
.tool summary {
  cursor: pointer; user-select: none;
  font-size: 11.5px; color: var(--text-faint);
  padding: 5px 12px;
  list-style: none;
}
.tool summary::before { content: "▸ "; }
.tool details[open] summary::before { content: "▾ "; }
.tool pre {
  margin: 0; padding: 8px 12px 10px;
  font-size: 12px;
  overflow-x: auto;
  color: var(--text-muted);
  border-top: 1px dashed var(--border);
}

/* Meta footer pesan */
.meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  margin-top: 10px;
  font-size: 11.5px;
  color: var(--text-faint);
}
.meta .m-sep::before { content: "·"; }
.copy-msg {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 11px;
  border-radius: 6px;
  padding: 2px 9px;
  cursor: pointer;
}
.copy-msg:hover { color: var(--accent); border-color: var(--accent-border); }

.timestamp { font-size: 11px; color: var(--text-faint); align-self: flex-end; padding: 0 4px 2px; flex: 0 0 auto; }

/* ---------- Composer ---------- */

.composer { border-top: 1px solid var(--border); background: var(--bg-panel); padding: 14px 20px 12px; }
.composer-inner {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  gap: 10px;
  align-items: flex-end;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px 12px;
  transition: border-color 0.15s;
}
.composer-inner:focus-within { border-color: var(--accent-border); }

#composerInput {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  resize: none;
  max-height: 200px;
  padding: 6px 4px;
  outline: none;
  line-height: 1.5;
}

.btn-send, .btn-stop {
  flex: 0 0 40px;
  height: 40px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-size: 15px;
  display: grid;
  place-items: center;
  transition: background 0.15s, opacity 0.15s;
}
.btn-send { background: var(--accent); color: #fff; }
.btn-send:hover { background: #e0886a; }
.btn-send:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-stop { background: var(--red); color: #fff; }
.btn-stop:hover { background: #ea7a7a; }

.composer-hint {
  max-width: 860px;
  margin: 8px auto 0;
  text-align: center;
  font-size: 11px;
  color: var(--text-faint);
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 13.5px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  z-index: 60;
  animation: toast-in 0.2s ease-out;
}
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 8px); } }

/* ---------- Scrollbar ---------- */

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #48473f; }

/* ---------- Responsif ---------- */

.backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 40;
}
.btn-icon.menu { display: none; }

@media (max-width: 920px) {
  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 50;
    transform: translateX(-105%);
    transition: transform 0.22s ease-out;
    box-shadow: 8px 0 30px rgba(0, 0, 0, 0.4);
  }
  body.sidebar-open .sidebar { transform: translateX(0); }
  .btn-icon.menu { display: inline-block; }
  .bubble { max-width: 94%; }
  .chat-list { padding: 18px 12px 14px; }
}