:root {
  --paper: #fbf8f1;
  --ink: #17201d;
  --muted: #4a5c55;
  --accent: #b44f2d;
  --accent-2: #2f6f62;
  --line: #d8d0bf;
  --panel: rgba(255, 252, 245, 0.88);
  --shadow: 0 20px 40px rgba(36, 37, 32, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Outfit", "PingFang SC", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 15% 20%, #ffe8cf 0, transparent 35%),
    radial-gradient(circle at 85% 0%, #d4eee6 0, transparent 40%),
    var(--paper);
  min-height: 100vh;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(66, 84, 77, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66, 84, 77, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 20%, transparent 90%);
}

.app {
  width: min(1080px, 92vw);
  margin: 2rem auto 3rem;
  position: relative;
  display: grid;
  gap: 1.2rem;
}

.hero {
  animation: rise 650ms ease-out both;
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--accent-2);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

h1 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.2;
}

.subtitle {
  margin-top: 0.55rem;
  color: var(--muted);
  max-width: 70ch;
}

.panel {
  background: var(--panel);
  backdrop-filter: blur(4px);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 1rem;
  animation: rise 750ms ease-out both;
}

.setup-panel {
  display: grid;
  gap: 0.8rem;
}

.stage-box {
  display: grid;
  gap: 0.45rem;
}

.stage-label {
  margin: 0;
  color: #2f6f62;
  font-weight: 700;
}

.stage-timeline {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.38rem;
}

.stage-timeline li {
  color: #5b665f;
}

.stage-timeline li.active {
  color: #1d3e38;
  font-weight: 700;
}

.stage-timeline li.done {
  color: #2f6f62;
}

.setup-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.actions button {
  min-width: 7.6rem;
}

label {
  font-weight: 600;
}

select,
textarea,
button {
  font: inherit;
}

select,
textarea {
  border: 1px solid #c8beab;
  border-radius: 10px;
  padding: 0.56rem 0.7rem;
  background: #fffdf7;
  color: var(--ink);
}

textarea {
  width: 100%;
  resize: vertical;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.56rem 1rem;
  background: linear-gradient(135deg, #b44f2d, #cb7b34);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  filter: brightness(1.05);
}

button.ghost {
  background: #f2ead8;
  color: #2a3b35;
}

.status {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

details summary {
  cursor: pointer;
  color: #244e45;
}

.chat {
  min-height: 330px;
  max-height: 58vh;
  overflow: auto;
  padding: 0.25rem;
}

.stage-evidence {
  border: 1px dashed #c9bea8;
  border-radius: 12px;
  padding: 0.8rem;
  background: #fffdf7;
}

.stage-evidence h2 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}

.stage-media {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 0.5rem 0;
}

.case-text {
  margin-top: 0.45rem;
  display: grid;
  gap: 0.4rem;
}

.case-text p {
  margin: 0;
  line-height: 1.65;
  color: #21332d;
}

.stage-media figure {
  margin: 0;
  border: 1px solid #e7dac3;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
}

.stage-media img {
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: contain;
  display: block;
  background: #faf7ef;
  cursor: zoom-in;
}

.stage-media figcaption {
  padding: 0.45rem 0.55rem;
  font-size: 0.85rem;
  color: #4d5954;
}

.stage-checklist {
  margin: 0.2rem 0 0;
  padding-left: 1.15rem;
  color: #34463f;
}

.stage-task-panel {
  margin-top: 0.7rem;
  border: 1px solid #e2d5be;
  border-radius: 10px;
  padding: 0.7rem;
  background: #fffaf1;
}

.task-title {
  margin: 0 0 0.4rem;
  font-weight: 700;
  color: #1e3f39;
}

.vote-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
}

.vote-stats {
  font-size: 0.9rem;
  color: #556560;
}

.task-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.45rem;
}

.task-table th,
.task-table td {
  border: 1px solid #e7d8bf;
  padding: 0.45rem;
  font-size: 0.9rem;
  vertical-align: top;
}

.task-table textarea {
  min-height: 62px;
}


.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(20, 20, 20, 0.82);
  display: none;
  z-index: 60;
  padding: 1rem;
}

.lightbox.open {
  display: grid;
  place-items: center;
}

.lightbox-figure {
  margin: 0;
  max-width: min(96vw, 1200px);
}

.lightbox img {
  max-width: 100%;
  max-height: 84vh;
  display: block;
  border-radius: 10px;
  background: #fff;
}

.lightbox figcaption {
  margin-top: 0.5rem;
  color: #f5f2e9;
  font-size: 0.95rem;
}

.lightbox-close {
  position: fixed;
  top: 1rem;
  right: 1rem;
  border-radius: 999px;
  border: 1px solid #ddccac;
  background: #fef4e2;
  color: #533221;
}

.msg {
  padding: 0.7rem 0.84rem;
  border-radius: 12px;
  margin: 0.45rem 0;
  line-height: 1.5;
  white-space: pre-wrap;
}

.msg.user {
  background: #eef6f2;
  border: 1px solid #c8dfd5;
}

.msg.assistant {
  background: #fff8ef;
  border: 1px solid #edd6b5;
}

.chat-form {
  margin-top: 0.8rem;
  display: grid;
  gap: 0.7rem;
}

.chat-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

#modelBadge {
  font-size: 0.88rem;
  color: #3e5a53;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .app {
    width: 95vw;
    margin-top: 1rem;
  }

  .chat {
    min-height: 280px;
  }
}