/* =========================================================
   Newt AI — design system
   ========================================================= */
:root {
  --grad-1: #6d5efc;
  --grad-2: #a855f7;
  --grad-3: #22d3ee;
  --bg: #0b0d14;
  --bg-elevated: #10121c;
  --panel: #14161f;
  --panel-2: #1a1d29;
  --panel-hover: #1f2333;
  --border: #262a3a;
  --border-soft: #1d2030;
  --text: #eef0f7;
  --text-muted: #8b93ab;
  --text-faint: #5c6480;
  --success: #2fd77b;
  --error: #f16565;
  --warn: #f5a524;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px -8px rgba(0,0,0,0.5);
  --shadow-lg: 0 16px 48px -12px rgba(0,0,0,0.6);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
::selection { background: rgba(109,94,252,0.35); }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(109,94,252,0.10), transparent 60%),
    radial-gradient(1000px 500px at 100% 0%, rgba(34,211,238,0.06), transparent 55%),
    var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a { color: #9c8bff; text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  background: rgba(255,255,255,0.07);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.85em;
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  color: #cdd6f4;
}

pre {
  background: #0d0f18;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  overflow-x: auto;
  font-size: 12.5px;
}
pre code { background: none; padding: 0; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2a2e40; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: #363b52; }

/* ---------- Chat layout ---------- */
.app { display: flex; height: 100vh; overflow: hidden; }

.sidebar {
  width: 288px;
  background: var(--panel);
  border-right: 1px solid var(--border-soft);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  overflow-y: auto;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 44px; height: 44px; border-radius: 13px;
  background: linear-gradient(135deg, var(--grad-1), var(--grad-2) 60%, var(--grad-3));
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.2);
}
.brand-name { font-weight: 750; font-size: 16px; letter-spacing: -0.01em; }
.brand-sub { font-size: 12px; color: var(--text-muted); margin-top: 1px; }

.section-title {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 10px;
  font-weight: 700;
}

.status-list { display: flex; flex-direction: column; gap: 8px; }
.status-row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; background: var(--panel-2); padding: 9px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
}

.pill {
  font-size: 10.5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.pill.connected { background: rgba(47,215,123,0.14); color: var(--success); }
.pill.missing { background: rgba(241,101,101,0.14); color: var(--error); }

.toggle-row {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--panel-2); padding: 10px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft); font-size: 13px;
}
.switch { position: relative; display: inline-block; width: 38px; height: 21px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; cursor: pointer; inset: 0;
  background: #2b2f42; border-radius: 999px; transition: 0.2s;
}
.slider::before {
  content: ""; position: absolute; height: 15px; width: 15px;
  left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}
.switch input:checked + .slider { background: linear-gradient(135deg, var(--grad-1), var(--grad-2)); }
.switch input:checked + .slider::before { transform: translateX(17px); }
.switch input:disabled + .slider { opacity: 0.35; cursor: not-allowed; }

.upload-zone {
  display: block;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 20px 12px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  transition: 0.15s;
  background: var(--panel-2);
}
.upload-zone:hover { border-color: var(--grad-1); color: var(--text); background: var(--panel-hover); }
.upload-zone input[type=file] { display: none; }

.file-list { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.file-chip {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--panel-2); border: 1px solid var(--border-soft); border-radius: var(--radius-sm); padding: 8px 12px; font-size: 12.5px;
}

.admin-link {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  background: linear-gradient(135deg, rgba(109,94,252,0.16), rgba(168,85,247,0.12));
  border: 1px solid rgba(109,94,252,0.25);
  color: #b3a6ff;
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 650;
  text-align: center;
  transition: 0.15s;
}
.admin-link:hover { text-decoration: none; filter: brightness(1.15); transform: translateY(-1px); }

.sidebar-footer { margin-top: auto; display: flex; flex-direction: column; gap: 8px; }
.clear-btn {
  background: var(--panel-2); border: 1px solid var(--border-soft); color: var(--text);
  padding: 10px; border-radius: var(--radius-sm); cursor: pointer; font-size: 13px; font-weight: 550;
  transition: 0.15s;
}
.clear-btn:hover { border-color: var(--error); color: var(--error); }
.logout-link { text-align: center; font-size: 12.5px; color: var(--text-muted); padding: 8px; }
.logout-link:hover { color: var(--text); }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 26px; border-bottom: 1px solid var(--border-soft);
  backdrop-filter: blur(8px);
}
.top h1 { font-size: 17px; margin: 0; font-weight: 700; letter-spacing: -0.01em; }
.top p { font-size: 12px; color: var(--text-muted); margin: 3px 0 0; }
.menu-btn { display: none; background: none; border: none; color: var(--text); font-size: 20px; margin-right: 12px; cursor: pointer; }

.mode-badge {
  background: rgba(109,94,252,0.14); color: #b3a6ff;
  font-size: 11.5px; font-weight: 700; padding: 6px 13px; border-radius: 999px;
  border: 1px solid rgba(109,94,252,0.22);
}

.chat-window { flex: 1; overflow-y: auto; padding: 26px 26px 10px; display: flex; flex-direction: column; gap: 18px; }

.msg-row { display: flex; gap: 10px; align-items: flex-start; animation: msgIn 0.25s ease; max-width: 760px; }
.msg-row.user-row { align-self: flex-end; flex-direction: row-reverse; }
@keyframes msgIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.avatar {
  width: 30px; height: 30px; border-radius: 9px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 15px;
  margin-top: 2px;
}
.avatar.ai { background: linear-gradient(135deg, var(--grad-1), var(--grad-2)); box-shadow: var(--shadow-sm); }
.avatar.user { background: var(--panel-2); border: 1px solid var(--border); }

.msg {
  padding: 13px 16px; border-radius: var(--radius); line-height: 1.6; font-size: 14.5px;
  box-shadow: var(--shadow-sm);
}
.msg.ai { background: var(--panel-2); border: 1px solid var(--border-soft); border-top-left-radius: 4px; }
.msg.user {
  background: linear-gradient(135deg, var(--grad-1), var(--grad-2));
  border-top-right-radius: 4px; color: #fff;
}
.msg p { margin: 0 0 8px; }
.msg p:last-child { margin-bottom: 0; }
.msg ul, .msg ol { margin: 6px 0; padding-left: 20px; }
.msg strong { font-weight: 700; }

.mode-tag {
  font-size: 10px; text-transform: uppercase; color: var(--text-faint);
  letter-spacing: 0.06em; font-weight: 700; display: block; margin-bottom: 4px;
}
.msg.user .mode-tag { color: rgba(255,255,255,0.7); }

.msg-meta { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.copy-btn {
  font-size: 11px; color: var(--text-faint); background: none; border: none; cursor: pointer;
  padding: 2px 4px; border-radius: 4px;
}
.copy-btn:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.msg-time { font-size: 10.5px; color: var(--text-faint); }

.sources { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.source-card {
  background: rgba(255,255,255,0.035); border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm); padding: 9px 11px; font-size: 12px;
}
.source-card a { font-weight: 650; }
.source-card p { margin: 4px 0 0; color: var(--text-muted); }

.typing-row { display: flex; gap: 10px; align-items: center; align-self: flex-start; }
.typing { display: flex; gap: 4px; padding: 13px 16px; background: var(--panel-2); border-radius: var(--radius); border: 1px solid var(--border-soft); }
.typing span {
  width: 6px; height: 6px; border-radius: 50%; background: var(--text-muted);
  animation: bounce 1.2s infinite;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes bounce { 0%, 60%, 100% { transform: translateY(0); } 30% { transform: translateY(-4px); } }

.input-bar { display: flex; gap: 12px; padding: 16px 26px 22px; border-top: 1px solid var(--border-soft); align-items: flex-end; }
.input-bar textarea {
  flex: 1; resize: none; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 13px 15px; color: var(--text); font-size: 14.5px; max-height: 140px;
  font-family: var(--font); transition: 0.15s;
}
.input-bar textarea:focus { outline: none; border-color: var(--grad-1); box-shadow: 0 0 0 3px rgba(109,94,252,0.15); }
.send-btn {
  background: linear-gradient(135deg, var(--grad-1), var(--grad-2)); border: none; color: white;
  padding: 0 24px; height: 46px; border-radius: var(--radius); font-weight: 650; cursor: pointer;
  box-shadow: var(--shadow-md); transition: 0.15s;
}
.send-btn:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Auth pages ---------- */
.auth-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.auth-card {
  background: var(--panel); border: 1px solid var(--border-soft); border-radius: var(--radius-lg);
  padding: 36px; width: 100%; max-width: 390px; text-align: center; box-shadow: var(--shadow-lg);
}
.auth-title { margin: 0 0 4px; font-size: 21px; font-weight: 750; letter-spacing: -0.01em; }
.auth-sub { color: var(--text-muted); font-size: 13px; margin: 0 0 22px; }
.auth-form { display: flex; flex-direction: column; gap: 6px; text-align: left; }
.auth-form label { font-size: 12px; color: var(--text-muted); margin-top: 10px; font-weight: 600; }
.auth-form input {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 11px 13px; color: var(--text); font-size: 14px; font-family: var(--font); transition: 0.15s;
}
.auth-form input:focus { outline: none; border-color: var(--grad-1); box-shadow: 0 0 0 3px rgba(109,94,252,0.15); }
.auth-btn {
  margin-top: 18px; background: linear-gradient(135deg, var(--grad-1), var(--grad-2));
  border: none; color: white; padding: 12px; border-radius: var(--radius-sm); font-weight: 650; cursor: pointer; font-size: 14px;
  box-shadow: var(--shadow-md); transition: 0.15s;
}
.auth-btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
.auth-hint { font-size: 11.5px; color: var(--text-faint); margin-top: 20px; line-height: 1.5; }

.alert { padding: 11px 15px; border-radius: var(--radius-sm); font-size: 13px; margin-bottom: 16px; text-align: left; border: 1px solid transparent; }
.alert-error { background: rgba(241,101,101,0.1); color: #fca5a5; border-color: rgba(241,101,101,0.2); }
.alert-success { background: rgba(47,215,123,0.1); color: #86efac; border-color: rgba(47,215,123,0.2); }
.alert-warn { background: rgba(245,165,36,0.1); color: #fcd34d; border-color: rgba(245,165,36,0.2); }

/* ---------- Admin panel ---------- */
.admin-shell { display: flex; min-height: 100vh; }
.admin-nav {
  width: 246px; background: var(--panel); border-right: 1px solid var(--border-soft);
  padding: 22px 16px; display: flex; flex-direction: column; flex-shrink: 0;
}
.admin-links { display: flex; flex-direction: column; gap: 3px; }
.admin-links a {
  padding: 10px 13px; border-radius: var(--radius-sm); color: var(--text-muted); font-size: 13.5px; font-weight: 550;
  transition: 0.15s;
}
.admin-links a:hover { background: var(--panel-2); text-decoration: none; color: var(--text); }
.admin-links a.active { background: rgba(109,94,252,0.14); text-decoration: none; color: #b3a6ff; }
.admin-nav-footer { margin-top: auto; display: flex; flex-direction: column; gap: 3px; padding-top: 14px; border-top: 1px solid var(--border-soft); }
.admin-nav-footer a { padding: 10px 13px; font-size: 13px; color: var(--text-muted); border-radius: var(--radius-sm); }
.admin-nav-footer a:hover { background: var(--panel-2); text-decoration: none; color: var(--text); }

.admin-main { flex: 1; min-width: 0; }
.admin-topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 34px; border-bottom: 1px solid var(--border-soft);
}
.admin-topbar h1 { font-size: 21px; margin: 0; font-weight: 750; letter-spacing: -0.01em; }
.admin-user { font-size: 13px; color: var(--text-muted); }
.admin-content { padding: 30px 34px; max-width: 1120px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 26px; }
.stat-card {
  background: var(--panel); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 20px;
  transition: 0.15s;
}
.stat-card:hover { border-color: var(--border); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.stat-num { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; background: linear-gradient(135deg, #fff, #b3a6ff); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; font-weight: 550; }

.panel-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
@media (max-width: 800px) { .panel-grid { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 22px;
  margin-bottom: 18px;
}
.panel-title { font-weight: 700; margin-bottom: 14px; font-size: 15px; letter-spacing: -0.005em; }
.muted { color: var(--text-muted); font-size: 13px; line-height: 1.6; }
.muted.small, .small { font-size: 11.5px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th, .data-table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border-soft); }
.data-table th { color: var(--text-faint); font-weight: 700; font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.04em; }
.data-table tr:hover td { background: rgba(255,255,255,0.015); }
.data-table .truncate { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.badge { font-size: 10.5px; padding: 4px 10px; border-radius: 999px; font-weight: 700; display: inline-block; }
.badge-indexed, .badge-success, .badge-assistant { background: rgba(47,215,123,0.14); color: var(--success); }
.badge-pending, .badge-processing, .badge-user { background: rgba(109,94,252,0.14); color: #b3a6ff; }
.badge-failed, .badge-error { background: rgba(241,101,101,0.14); color: var(--error); }
.badge-deleted { background: rgba(139,147,171,0.14); color: var(--text-muted); }

.row-actions { display: flex; gap: 6px; align-items: flex-start; }
.btn-small {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 6px 11px; border-radius: 7px; font-size: 12px; cursor: pointer; font-weight: 550;
  transition: 0.15s;
}
.btn-small:hover { border-color: var(--grad-1); color: #b3a6ff; }
.btn-danger:hover { border-color: var(--error); color: var(--error); }

.upload-form { display: flex; flex-direction: column; gap: 12px; max-width: 480px; }
.upload-form input[type=text] {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 13px; color: var(--text); font-size: 14px; font-family: var(--font);
}

.settings-form { display: flex; flex-direction: column; gap: 4px; max-width: 560px; }
.form-row { display: flex; flex-direction: column; gap: 5px; margin-bottom: 15px; }
.form-row label { font-size: 12px; color: var(--text-muted); font-weight: 650; }
.form-row input, .form-row select, .form-row textarea {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 13px; color: var(--text); font-size: 14px; font-family: var(--font); transition: 0.15s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--grad-1); box-shadow: 0 0 0 3px rgba(109,94,252,0.15);
}
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .form-grid-2 { grid-template-columns: 1fr; } }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); font-weight: 600; }
.checkbox-row input { width: 16px; height: 16px; }

.provider-chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.provider-chip {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel-2); border: 1px solid var(--border-soft); border-radius: 999px;
  padding: 7px 14px 7px 7px; font-size: 13px; font-weight: 600;
}
.chip-num {
  width: 20px; height: 20px; border-radius: 50%;
  background: linear-gradient(135deg, var(--grad-1), var(--grad-2));
  color: white; font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

details summary { list-style: none; }
details summary::-webkit-details-marker { display: none; }
details[open] summary.btn-small { border-color: var(--grad-1); }

@media (max-width: 820px) {
  .sidebar { position: fixed; z-index: 20; height: 100%; left: -300px; transition: 0.2s; }
  .sidebar.open { left: 0; box-shadow: var(--shadow-lg); }
  .menu-btn { display: inline-block; }
  .admin-nav { display: none; }
  .admin-content { padding: 22px 18px; }
  .admin-topbar { padding: 18px 20px; }
}

/* ---------- Chunk preview/edit (admin/chunks.php) ---------- */
.chunk-card {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; margin-bottom: 10px;
}
.chunk-card summary { cursor: pointer; font-size: 13px; font-weight: 600; }
.chunk-card summary::-webkit-details-marker { display: none; }

/* ---------- Log filter active state ---------- */
.active-filter { border-color: var(--grad-1) !important; color: #b3a6ff !important; }

/* ---------- Cookie consent banner ---------- */
.cookie-banner {
  position: fixed; left: 20px; right: 20px; bottom: 20px; z-index: 50;
  max-width: 640px; margin: 0 auto;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  box-shadow: var(--shadow-md, 0 8px 24px rgba(0,0,0,0.35));
  font-size: 13px;
}
.cookie-banner p { margin: 0; color: var(--text-muted); }
.cookie-banner a { color: var(--grad-1); }
@media (max-width: 560px) { .cookie-banner { flex-direction: column; align-items: flex-start; } }

/* ---------- Public legal pages (terms.php / privacy.php) ---------- */
.legal-page {
  max-width: 760px; margin: 0 auto; padding: 48px 24px 80px;
  line-height: 1.7;
}
.legal-page h1 { font-size: 26px; margin-bottom: 6px; }
.legal-page h2 { font-size: 17px; margin-top: 28px; color: var(--grad-1); }
.legal-page ul { padding-left: 20px; }
.legal-page li { margin-bottom: 6px; }