/* Redis LangCache demo - Midnight theme, Redis 2026 brand palette */

:root {
  --midnight: #091A23;
  --panel: #0E2530;
  --panel-2: #133140;
  --line: rgba(128, 219, 255, 0.13);
  --line-soft: rgba(128, 219, 255, 0.07);
  --hyper: #FF4438;
  --sky: #80DBFF;
  --yellow: #DCFF1E;
  --violet: #C795E3;
  --green: #3DDC97;
  --amber: #FFC24B;
  --text: #E9F1F5;
  --muted: #8DA6B3;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(255, 68, 56, 0.07), transparent 60%),
    radial-gradient(900px 420px at -10% 0%, rgba(128, 219, 255, 0.06), transparent 55%),
    var(--midnight);
  color: var(--text);
  font: 400 14px/1.55 Inter, system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

h1, h2, h3, .kpi-num, .brand-name { font-family: 'Space Grotesk', Inter, sans-serif; }

/* ============ Top bar ============ */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 28px;
  background: rgba(9, 26, 35, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 14px; }
.redis-logo { height: 24px; width: auto; color: var(--hyper); display: block; }
.brand-divider { width: 1px; height: 22px; background: var(--line); }
.brand-name { font-size: 19px; font-weight: 600; letter-spacing: 0.2px; }
.brand-badge {
  font-size: 10px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--midnight); background: var(--yellow);
  padding: 3px 8px; border-radius: 999px;
}
.topbar-right { display: flex; align-items: center; gap: 10px; }
.status-pill {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; font-weight: 500; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px;
  font-family: var(--mono);
}
.status-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); }
.status-pill.ok .dot { background: var(--green); box-shadow: 0 0 8px rgba(61, 220, 151, 0.7); }
.status-pill.err .dot { background: var(--hyper); }
.top-link {
  color: var(--sky); text-decoration: none; font-size: 12.5px; font-weight: 600;
  padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px;
  transition: all .15s ease;
}
.top-link:hover { background: rgba(128, 219, 255, 0.1); }

/* ============ Layout ============ */
.layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 20px;
  max-width: 1760px; margin: 0 auto; padding: 22px 28px 48px;
}
.main-col { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.rail { display: flex; flex-direction: column; gap: 18px; min-width: 0; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.card-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.card-head h2 { margin: 0; font-size: 15px; font-weight: 600; letter-spacing: 0.2px; }
.card-sub { font-size: 12px; color: var(--muted); }

/* ============ KPIs ============ */
.kpis { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.kpi {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 16px; transition: transform .15s ease;
}
.kpi:hover { transform: translateY(-2px); }
.kpi-num { font-size: 26px; font-weight: 700; line-height: 1.15; color: var(--text); }
.kpi-label { font-size: 10.5px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); margin-top: 5px; }
.kpi-accent { border-color: rgba(255, 68, 56, 0.5); }
.kpi-accent .kpi-num { color: var(--hyper); }

/* ============ Scope selector ============ */
.scope-options { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.scope-opt {
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
  background: var(--panel-2); border: 1.5px solid var(--line); border-radius: 12px;
  padding: 14px 15px; cursor: pointer; text-align: left;
  color: var(--text); font: inherit;
  transition: border-color .15s ease, background .15s ease;
}
.scope-opt:hover { border-color: rgba(128, 219, 255, 0.4); }
.scope-opt.active {
  border-color: var(--hyper);
  background: linear-gradient(180deg, rgba(255, 68, 56, 0.12), rgba(255, 68, 56, 0.04));
}
.scope-icon { font-size: 20px; }
.scope-title { font-family: 'Space Grotesk', sans-serif; font-size: 14.5px; font-weight: 600; }
.scope-opt.active .scope-title { color: var(--hyper); }
.scope-desc { font-size: 12px; color: var(--muted); line-height: 1.45; }
.scope-hint {
  margin-top: 12px; font-family: var(--mono); font-size: 11.5px; color: var(--sky);
  background: rgba(128, 219, 255, 0.06); border: 1px dashed var(--line);
  border-radius: 8px; padding: 8px 12px;
}

/* ============ Chats ============ */
.chats { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.chat-card {
  display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  min-height: 520px; overflow: hidden;
}
.chat-head {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; border-bottom: 1px solid var(--line-soft);
  background: var(--panel-2);
}
.avatar {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  position: relative; overflow: hidden;
  display: grid; place-items: center;
  font-family: 'Space Grotesk', sans-serif; font-size: 18px; font-weight: 700; color: var(--midnight);
}
.avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.avatar-a { background: linear-gradient(135deg, var(--sky), #4BAFDB); }
.avatar-b { background: linear-gradient(135deg, var(--yellow), #A8C716); }
.persona { flex: 1; min-width: 0; }
.persona input {
  background: transparent; border: none; color: var(--text); font: inherit;
  border-bottom: 1px dashed transparent; padding: 0 2px; outline: none;
}
.persona input:hover, .persona input:focus { border-bottom-color: var(--sky); }
.p-name { font-family: 'Space Grotesk', sans-serif; font-size: 16px; font-weight: 600; width: 140px; }
.p-meta { display: flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--muted); }
.p-meta input { font-size: 11.5px; color: var(--muted); font-family: var(--mono); }
.p-company { width: 90px; }
.p-bu { width: 190px; }
.icon-btn {
  background: transparent; border: 1px solid var(--line); border-radius: 9px;
  color: var(--muted); font-size: 14px; padding: 7px 10px; cursor: pointer;
  transition: all .15s ease;
}
.icon-btn:hover { color: var(--hyper); border-color: rgba(255, 68, 56, 0.5); }

.thread {
  flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px;
  scroll-behavior: smooth;
}
.thread:empty::before {
  content: attr(data-empty);
  display: block; margin: auto; max-width: 260px; text-align: center;
  color: var(--muted); font-size: 12.5px; opacity: 0.75;
}

.msg { max-width: 88%; display: flex; flex-direction: column; gap: 5px; }
.msg-user { align-self: flex-end; align-items: flex-end; }
.msg-bot { align-self: flex-start; align-items: flex-start; }
.bubble {
  padding: 10px 14px; border-radius: 14px; font-size: 13.5px; line-height: 1.5;
  white-space: pre-wrap; word-break: break-word;
}
.msg-user .bubble {
  background: var(--panel-2); border: 1px solid var(--line);
  border-bottom-right-radius: 4px; color: var(--text);
}
.msg-bot .bubble {
  background: rgba(128, 219, 255, 0.05); border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
}
.msg-bot.src-cache .bubble { border-left: 3px solid var(--green); }
.msg-bot.src-llm .bubble { border-left: 3px solid var(--amber); }
.msg-bot.src-stored .bubble { border-left: 3px solid var(--sky); }
.msg-bot.src-direct .bubble { border-left: 3px solid var(--violet); }
.msg-bot.src-error .bubble { border-left: 3px solid var(--hyper); color: #FFB4AE; }

.msg-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 11px; color: var(--muted); }
.badge {
  font-family: var(--mono); font-size: 10px; font-weight: 600; letter-spacing: 0.6px;
  padding: 2.5px 8px; border-radius: 999px; text-transform: uppercase;
}
.badge-cache { background: rgba(61, 220, 151, 0.15); color: var(--green); }
.badge-llm { background: rgba(255, 194, 75, 0.14); color: var(--amber); }
.badge-stored { background: rgba(128, 219, 255, 0.14); color: var(--sky); }
.badge-direct { background: rgba(199, 149, 227, 0.15); color: var(--violet); }
.badge-speed { background: rgba(255, 68, 56, 0.13); color: var(--hyper); }
.sim-meter {
  display: inline-flex; align-items: center; gap: 6px;
}
.sim-meter .sim-track {
  width: 54px; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, 0.09); overflow: hidden;
}
.sim-meter .sim-fill { height: 100%; background: var(--green); border-radius: 4px; }
.how-it-works {
  margin: 10px 0 2px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 12.5px;
  color: var(--muted);
}
.how-it-works summary {
  cursor: pointer; padding: 9px 14px;
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  letter-spacing: 0.6px; text-transform: uppercase; color: var(--sky);
  user-select: none;
}
.how-it-works[open] summary { border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.how-it-works ul { margin: 0; padding: 10px 16px 12px 30px; display: grid; gap: 6px; }
.how-it-works strong { color: var(--text, #e8ecf4); }
.how-it-works em { color: var(--sky); font-style: normal; }

.scope-chip {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.3px;
  padding: 2.5px 8px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.06); color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.closest {
  font-family: var(--mono); font-size: 10px; font-weight: 600; letter-spacing: 0.3px;
  padding: 2.5px 8px; border-radius: 999px;
  background: rgba(255, 194, 75, 0.10); color: var(--amber);
  border: 1px dashed rgba(255, 194, 75, 0.35);
}
.msg-trace {
  font-family: var(--mono); font-size: 10.5px; color: var(--muted); opacity: 0.85;
}
.msg-trace .t-hit { color: var(--green); }
.msg-trace .t-miss { color: var(--amber); }
.msg-trace .t-stored { color: var(--sky); }

.typing { display: inline-flex; gap: 4px; padding: 12px 14px; }
.typing i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--muted);
  animation: blink 1.2s infinite;
}
.typing i:nth-child(2) { animation-delay: 0.18s; }
.typing i:nth-child(3) { animation-delay: 0.36s; }
@keyframes blink { 0%, 70%, 100% { opacity: 0.25; } 35% { opacity: 1; } }

.composer {
  display: flex; gap: 10px; padding: 12px 14px; border-top: 1px solid var(--line-soft);
  background: var(--panel-2);
}
.composer input {
  flex: 1; background: var(--midnight); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); font: inherit; padding: 11px 14px; outline: none;
  transition: border-color .15s ease;
}
.composer input:focus { border-color: var(--sky); }
.composer button {
  background: var(--hyper); border: none; border-radius: 10px; color: #fff;
  font-size: 16px; padding: 0 18px; cursor: pointer;
  transition: filter .15s ease;
}
.composer button:hover { filter: brightness(1.12); }
.composer button:disabled { opacity: 0.5; cursor: wait; }

/* ============ Advanced ============ */
.advanced summary {
  display: flex; align-items: baseline; gap: 12px; cursor: pointer;
  font-family: 'Space Grotesk', sans-serif; font-size: 15px; font-weight: 600;
  list-style: none;
}
.advanced summary::-webkit-details-marker { display: none; }
.advanced summary::before { content: '▸'; color: var(--muted); margin-right: 2px; transition: transform .15s ease; display: inline-block; }
.advanced[open] summary::before { transform: rotate(90deg); }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px 24px; margin-top: 18px; }
.adv-field { display: flex; flex-direction: column; gap: 7px; font-size: 12.5px; color: var(--muted); }
.adv-field b { color: var(--sky); font-family: var(--mono); font-weight: 600; }
.adv-field input[type="number"] {
  background: var(--midnight); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); font: inherit; padding: 8px 10px; outline: none; width: 130px;
}
.adv-field input[type="range"] { accent-color: var(--hyper); }
.adv-check { flex-direction: row; align-items: center; gap: 10px; }
.adv-check input { accent-color: var(--hyper); width: 16px; height: 16px; }
.adv-footer { display: flex; align-items: center; gap: 14px; margin-top: 18px; flex-wrap: wrap; }
.ghost-btn {
  background: transparent; border: 1px solid rgba(255, 68, 56, 0.45); border-radius: 9px;
  color: var(--hyper); font: 600 12.5px Inter, sans-serif; padding: 9px 14px; cursor: pointer;
  transition: background .15s ease;
}
.ghost-btn:hover { background: rgba(255, 68, 56, 0.1); }

/* ============ Rail: roteiro ============ */
.steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; counter-reset: step; }
.step { border-radius: 10px; padding: 10px 12px; transition: background .15s ease; }
.step:hover { background: var(--panel-2); }
.step-head { display: flex; align-items: center; gap: 10px; cursor: default; }
.step-num {
  counter-increment: step; flex-shrink: 0;
  width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--panel-2); border: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; font-weight: 600; color: var(--sky);
}
.step-num::before { content: counter(step); }
.step-title { font-size: 13px; font-weight: 600; }
.step-note { font-size: 11.5px; color: var(--muted); margin: 4px 0 8px 32px; line-height: 1.45; }
.step-chips { display: flex; flex-direction: column; gap: 6px; margin-left: 32px; }
.chip {
  display: flex; align-items: center; gap: 8px; text-align: left;
  background: var(--midnight); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); font: 400 12px Inter, sans-serif; padding: 7px 10px; cursor: pointer;
  transition: border-color .15s ease;
}
.chip:hover { border-color: var(--sky); }
.chip .chip-side {
  flex-shrink: 0; font-family: var(--mono); font-size: 9.5px; font-weight: 700;
  padding: 2px 6px; border-radius: 5px;
}
.chip .side-A { background: rgba(128, 219, 255, 0.16); color: var(--sky); }
.chip .side-B { background: rgba(220, 255, 30, 0.14); color: var(--yellow); }
.chip.chip-action { border-style: dashed; color: var(--violet); }
.chip.chip-action:hover { border-color: var(--violet); }
.chip.done { opacity: 0.45; }

/* ============ Rail: observability ============ */
.obs-latency { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.lat-row { display: grid; grid-template-columns: 78px 1fr 70px; align-items: center; gap: 10px; }
.lat-label { font-family: var(--mono); font-size: 11px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lat-bar { height: 8px; border-radius: 6px; background: rgba(255, 255, 255, 0.07); overflow: hidden; }
.lat-fill { height: 100%; border-radius: 6px; width: 0; transition: width .5s ease; }
.lat-cache { background: linear-gradient(90deg, #2AAd77, var(--green)); }
.lat-llm { background: linear-gradient(90deg, #C98A2B, var(--amber)); }
.lat-val { font-family: var(--mono); font-size: 11.5px; color: var(--text); text-align: right; }
.lat-note { font-size: 11.5px; color: var(--muted); }
.lat-note b { color: var(--green); font-family: var(--mono); }

.obs-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.obs-table td { padding: 6px 0; border-bottom: 1px solid var(--line-soft); }
.obs-table td:first-child { color: var(--muted); }
.obs-table td:last-child { text-align: right; font-family: var(--mono); font-size: 12px; }
.obs-sep { height: 14px; }

.obs-debug { margin-top: 14px; }
.obs-debug summary { font-size: 12px; color: var(--muted); cursor: pointer; }
.obs-debug pre {
  margin: 10px 0 0; padding: 12px; max-height: 320px; overflow: auto;
  background: var(--midnight); border: 1px solid var(--line-soft); border-radius: 8px;
  font-family: var(--mono); font-size: 10.5px; line-height: 1.5; color: var(--sky);
  white-space: pre-wrap; word-break: break-word;
}

/* ============ Login ============ */
#login-overlay {
  position: fixed; inset: 0; z-index: 100;
  display: grid; place-items: center;
  background:
    radial-gradient(900px 400px at 70% 20%, rgba(255, 68, 56, 0.1), transparent 60%),
    var(--midnight);
}
#login-overlay.hidden { display: none; }
.login-card {
  width: 360px; text-align: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 18px;
  padding: 40px 36px;
}
.login-logo { height: 30px; margin: 0 auto 18px; }
.login-card h1 { margin: 0 0 6px; font-size: 26px; }
.login-card p { margin: 0 0 24px; color: var(--muted); font-size: 13px; }
.login-card input {
  width: 100%; background: var(--midnight); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); font: inherit; padding: 12px 14px; outline: none; margin-bottom: 12px;
  text-align: center;
}
.login-card input:focus { border-color: var(--sky); }
.login-card button {
  width: 100%; background: var(--hyper); border: none; border-radius: 10px;
  color: #fff; font: 600 14px Inter, sans-serif; padding: 12px; cursor: pointer;
}
.login-card button:hover { filter: brightness(1.1); }
#login-error { color: var(--hyper); font-size: 12.5px; margin-top: 10px; min-height: 16px; }

/* ============ Responsive ============ */
@media (max-width: 1420px) {
  .kpis { grid-template-columns: repeat(3, 1fr); }
  .scope-options { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1180px) {
  .layout { grid-template-columns: 1fr; }
  .rail { flex-direction: row; flex-wrap: wrap; }
  .rail .card { flex: 1 1 380px; }
}
@media (max-width: 860px) {
  .chats { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; }
  .layout { padding: 16px; }
}