:root {
  --eclips: #0b0b1a;
  --lavendel: #1a1a3e;
  --amethyste: #2d2d6b;
  --cornflower: #6c7aff;
  --shore: #a4b0ff;
  --birch: #e8e4f0;
  --pine: #1a3a2a;
  --poppy: #ff6b6b;
  --tulip: #ff8fab;
  --oat: #f5f0e8;
  --bg: #0b0b1a;
  --card-bg: #12122a;
  --surface: #1a1a3e;
  --border: #2a2a5a;
  --text: #e8e4f0;
  --text-muted: #8888aa;
  --accent: #6c7aff;
  --accent-hover: #5a68e8;
  --danger: #ff6b6b;
  --success: #4ade80;
  --warning: #fbbf24;
  --radius: 10px;
  --radius-sm: 6px;
  --sidebar-w: 220px;
  --font: 'Inter', -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); background: var(--bg); color: var(--text); height: 100vh; overflow: hidden; }

/* SCREENS */
.screen { display: none; height: 100vh; }
.screen.active { display: flex; }

/* ===== AUTH ===== */
.auth-container {
  max-width: 420px; margin: auto; padding: 40px 24px;
  display: flex; flex-direction: column; align-items: center; gap: 24px;
}
.auth-header { text-align: center; }
.auth-logo { height: 32px; margin-bottom: 16px; }
.auth-header h1 { font-size: 28px; font-weight: 600; color: var(--text); }
.auth-subtitle { color: var(--text-muted); font-size: 14px; margin-top: 4px; }
.auth-form { width: 100%; display: flex; flex-direction: column; gap: 16px; }
.auth-error { color: var(--danger); font-size: 14px; text-align: center; padding: 8px; background: rgba(255,107,107,0.1); border-radius: var(--radius-sm); }
.auth-hint { color: var(--text-muted); font-size: 12px; text-align: center; margin-top: 8px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 500; color: var(--text-muted); }
.input-field {
  padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--card-bg); color: var(--text); font-size: 14px; font-family: var(--font);
  transition: border-color 0.2s;
}
.input-field:focus { outline: none; border-color: var(--accent); }
.input-field::placeholder { color: var(--text-muted); opacity: 0.5; }

.btn-primary {
  padding: 10px 20px; border-radius: var(--radius-sm); border: none;
  background: var(--accent); color: white; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: background 0.2s; font-family: var(--font);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-sm {
  padding: 6px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: transparent; color: var(--text-muted); font-size: 12px; font-weight: 500;
  cursor: pointer; transition: all 0.2s; font-family: var(--font);
}
.btn-sm:hover { border-color: var(--accent); color: var(--text); }
.btn-primary-sm {
  background: var(--accent); color: white; border-color: var(--accent);
}
.btn-primary-sm:hover { background: var(--accent-hover); color: white; }
.btn-danger-sm { border-color: var(--danger); color: var(--danger); }
.btn-danger-sm:hover { background: rgba(255,107,107,0.1); }

/* ===== APP LAYOUT ===== */
.app-layout { display: flex; height: 100vh; width: 100%; }

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w); background: var(--card-bg);
  border-right: 1px solid var(--border); display: flex;
  flex-direction: column; flex-shrink: 0;
}
.sidebar-header { padding: 20px 16px; border-bottom: 1px solid var(--border); }
.sidebar-logo { display: flex; align-items: center; gap: 10px; }
.sidebar-logomark { height: 24px; }
.sidebar-title { font-size: 16px; font-weight: 600; color: var(--text); }
.sidebar-nav { flex: 1; padding: 8px; display: flex; flex-direction: column; gap: 2px; }
.sidebar-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: var(--radius-sm); border: none; background: transparent;
  color: var(--text-muted); font-size: 14px; cursor: pointer; font-family: var(--font);
  transition: all 0.15s; text-align: left; width: 100%;
}
.sidebar-item i { width: 18px; text-align: center; font-size: 14px; }
.sidebar-item:hover { background: rgba(108,122,255,0.08); color: var(--text); }
.sidebar-item.active { background: rgba(108,122,255,0.15); color: var(--accent); font-weight: 500; }
.sidebar-footer {
  padding: 12px 16px; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.sidebar-user { font-size: 13px; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; }
.sidebar-logout { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 4px; }
.sidebar-logout:hover { color: var(--danger); }

/* MAIN CONTENT */
.main-content { flex: 1; overflow-y: auto; padding: 0; }
.tab-panel { display: none; padding: 24px; }
.tab-panel.active { display: block; }

.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; gap: 12px;
}
.panel-header h2 {
  font-size: 18px; font-weight: 600; display: flex; align-items: center; gap: 8px;
}
.panel-header h2 i { color: var(--accent); font-size: 16px; }
.panel-actions { display: flex; gap: 8px; align-items: center; }

/* ===== TEST LAYOUT ===== */
.test-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; height: calc(100vh - 100px); }

/* Prompt editor */
.test-editor { display: flex; flex-direction: column; }
.prompt-editor {
  flex: 1; padding: 16px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--card-bg); color: var(--text); font-size: 13px; font-family: 'SF Mono', 'Fira Code', monospace;
  line-height: 1.6; resize: none; min-height: 200px;
  transition: border-color 0.2s;
}
.prompt-editor:focus { outline: none; border-color: var(--accent); }
.editor-footer {
  display: flex; justify-content: space-between; padding: 8px 4px;
  font-size: 12px; color: var(--text-muted);
}
.stats-badge, .version-badge {
  background: var(--surface); padding: 3px 8px; border-radius: 4px;
}

/* Chat test */
.test-chat { display: flex; flex-direction: column; }
.model-bar {
  display: flex; gap: 12px; align-items: flex-end; margin-bottom: 8px;
  flex-wrap: wrap;
}
.model-select-group { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 180px; }
.model-select-group label, .model-param-group label {
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted);
}
.select-field {
  padding: 8px 10px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--card-bg); color: var(--text); font-size: 13px; font-family: var(--font);
}
.select-field:focus { outline: none; border-color: var(--accent); }
.model-param-group { display: flex; flex-direction: column; gap: 4px; min-width: 80px; }
.model-param-group.narrow { min-width: 100px; }
.range-slider {
  width: 100%; accent-color: var(--accent);
}
.input-sm {
  padding: 8px 10px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--card-bg); color: var(--text); font-size: 13px; width: 100%;
}

.fixture-bar {
  display: flex; gap: 10px; align-items: center; margin-bottom: 8px;
  padding: 8px 12px; background: var(--surface); border-radius: var(--radius-sm);
}
.fixture-bar label { font-size: 12px; color: var(--text-muted); white-space: nowrap; }
.fixture-bar .select-field { flex: 1; }
.fixture-context { font-size: 11px; color: var(--text-muted); max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.chat-messages {
  flex: 1; overflow-y: auto; margin-bottom: 8px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--card-bg); padding: 12px;
  display: flex; flex-direction: column; gap: 8px;
  min-height: 150px;
}
.chat-empty {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: var(--text-muted); gap: 8px; opacity: 0.5;
}
.chat-empty i { font-size: 32px; }
.chat-empty p { font-size: 13px; }

.chat-msg { padding: 10px 14px; border-radius: var(--radius); max-width: 90%; }
.chat-msg.user { align-self: flex-end; background: var(--accent); color: white; }
.chat-msg.assistant { align-self: flex-start; background: var(--surface); color: var(--text); }
.chat-msg.system { align-self: center; background: rgba(255,107,107,0.1); color: var(--danger); font-size: 12px; text-align: center; max-width: 100%; padding: 6px 12px; }
.chat-msg .msg-label { font-size: 11px; font-weight: 600; margin-bottom: 4px; opacity: 0.7; }
.chat-msg .msg-text { font-size: 13px; line-height: 1.5; white-space: pre-wrap; word-break: break-word; }
.chat-msg .msg-text.streaming { opacity: 0.8; }

.chat-input-area {
  display: flex; gap: 8px; align-items: flex-end;
}
.chat-input {
  flex: 1; padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--card-bg); color: var(--text); font-size: 13px; font-family: var(--font);
  resize: none; line-height: 1.4;
}
.chat-input:focus { outline: none; border-color: var(--accent); }
.btn-send {
  width: 40px; height: 40px; border-radius: 50%; border: none;
  background: var(--accent); color: white; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s;
}
.btn-send:hover { background: var(--accent-hover); }
.btn-send:disabled { opacity: 0.5; cursor: not-allowed; }

.response-stats {
  display: flex; gap: 16px; padding: 8px 12px;
  background: var(--surface); border-radius: var(--radius-sm);
  font-size: 11px; color: var(--text-muted); flex-wrap: wrap;
}

/* ===== COMPARE ===== */
.compare-layout { display: flex; flex-direction: column; gap: 16px; }
.compare-input {
  display: flex; gap: 16px; align-items: flex-end;
  padding: 16px; background: var(--surface); border-radius: var(--radius);
}
.compare-input .form-group { flex: 1; }
.compare-columns {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}
.compare-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--card-bg); display: flex; flex-direction: column;
}
.compare-card-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
}
.compare-card-header strong { font-size: 14px; }
.checkbox-label { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--text-muted); cursor: pointer; }
.compare-card-body {
  flex: 1; padding: 14px; font-size: 13px; line-height: 1.5;
  white-space: pre-wrap; overflow-y: auto; max-height: 400px; min-height: 100px;
}
.compare-placeholder { color: var(--text-muted); opacity: 0.5; font-style: italic; }
.compare-card-footer {
  padding: 8px 14px; border-top: 1px solid var(--border);
  font-size: 11px; color: var(--text-muted);
}

/* ===== VERSIONS ===== */
.versions-toolbar { display: flex; gap: 12px; margin-bottom: 16px; }
.versions-toolbar .search-field { flex: 1; max-width: 300px; }
.versions-list { display: flex; flex-direction: column; gap: 8px; }

.version-card {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); cursor: pointer; transition: border-color 0.15s;
}
.version-card:hover { border-color: var(--accent); }
.version-card .version-info { display: flex; flex-direction: column; gap: 2px; }
.version-card .version-name { font-size: 14px; font-weight: 500; }
.version-card .version-meta { font-size: 11px; color: var(--text-muted); display: flex; gap: 8px; }
.version-card .version-actions { display: flex; gap: 6px; }
.tag {
  display: inline-block; padding: 2px 6px; border-radius: 3px;
  font-size: 10px; font-weight: 600; text-transform: uppercase;
}
.tag-live { background: rgba(74,222,128,0.15); color: var(--success); }
.tag-candidate { background: rgba(108,122,255,0.15); color: var(--accent); }
.tag-test { background: rgba(251,191,36,0.15); color: var(--warning); }
.tag-rejected { background: rgba(255,107,107,0.15); color: var(--danger); }

/* ===== FIXTURES ===== */
.fixtures-list { display: grid; gap: 12px; }
.fixture-card {
  padding: 16px; background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); display: flex; justify-content: space-between; align-items: flex-start;
}
.fixture-card .fixture-info { flex: 1; }
.fixture-card .fixture-name { font-size: 15px; font-weight: 500; }
.fixture-card .fixture-detail { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.fixture-card .fixture-actions { display: flex; gap: 6px; }

/* ===== RESULTS ===== */
.results-toolbar { display: flex; gap: 12px; margin-bottom: 16px; }
.results-table-wrapper { overflow-x: auto; }
.results-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.results-table th {
  text-align: left; padding: 10px 12px; background: var(--surface);
  color: var(--text-muted); font-weight: 500; font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.5px; border-bottom: 1px solid var(--border);
}
.results-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.results-table tr:hover { background: rgba(108,122,255,0.03); }
.results-table .truncate { max-width: 250px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.6); z-index: 1000;
  display: flex; align-items: center; justify-content: center;
}
.modal-content {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); max-width: 640px; width: 90%;
  max-height: 80vh; overflow-y: auto;
}
.modal-body { padding: 24px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }
.modal-title { font-size: 18px; font-weight: 600; margin-bottom: 16px; }

/* ===== FORM IN MODAL ===== */
.modal-form { display: flex; flex-direction: column; gap: 14px; }
.modal-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal-form textarea { min-height: 80px; resize: vertical; }

/* ===== LIST EMPTY ===== */
.list-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 60px 20px; color: var(--text-muted); opacity: 0.5; gap: 12px;
}
.list-empty i { font-size: 40px; }
.list-empty p { font-size: 14px; }

/* ===== LOADING SPINNER ===== */
.spinner {
  display: inline-block; width: 20px; height: 20px;
  border: 2px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--amethyste); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .test-layout { grid-template-columns: 1fr; height: auto; }
  .test-editor { min-height: 300px; }
  .test-chat { min-height: 500px; }
  .compare-columns { grid-template-columns: 1fr; }
}