:root {
  --green: #3d9a3d;
  --green-dark: #2c7a2c;
  --green-soft: #e7f4e4;
  --bg: #f3f7f3;
  --card: #ffffff;
  --text: #1b2a1b;
  --muted: #4d5d4d;
  --line: #d3e0d3;
  --shadow: 0 10px 28px rgba(28, 72, 28, 0.08);
  --radius: 16px;
  --wa: #25d366;
  --danger: #b42318;
  --focus: 0 0 0 3px rgba(61, 154, 61, 0.35);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Vazirmatn", "Tahoma", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}
a { color: var(--green-dark); }
button, input, textarea {
  font: inherit;
}
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}
.app-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}
.brand-logo {
  height: 56px;
  width: auto;
  max-width: min(220px, 42vw);
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 4px 8px;
}
.titles h1 {
  margin: 0;
  font-size: clamp(1.05rem, 2.6vw, 1.45rem);
}
.titles p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.header-actions {
  display: flex;
  gap: 8px;
}
.ghost {
  background: var(--green-soft);
  color: var(--green-dark);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px 140px;
}
.welcome, .bubble, .card, .panel, .compare-bar, .modal-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.welcome {
  padding: 24px 22px;
  border: 1px solid var(--line);
}
.welcome h2 { margin: 0 0 10px; font-size: 1.15rem; }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.chip {
  background: var(--green-soft);
  color: var(--green-dark);
  border: 1px solid #cfe6cf;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  text-align: right;
}
.thread { display: flex; flex-direction: column; gap: 12px; margin: 18px 0; }
.bubble {
  padding: 14px 16px;
  border: 1px solid var(--line);
  max-width: min(100%, 720px);
  white-space: pre-wrap;
}
.bubble.user {
  margin-inline-start: auto;
  background: var(--green-soft);
  border-color: #c5e0c5;
}
.recs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 18px 0;
}
.card {
  border: 1px solid var(--line);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 100%;
}
.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  background: #eef3ee;
}
.badge {
  display: inline-flex;
  align-self: flex-start;
  background: var(--green);
  color: #fff;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.82rem;
}
.card h3 { margin: 0; font-size: 1.05rem; }
.meta, .muted { color: var(--muted); font-size: 0.95rem; }
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
}
.btn {
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: #fff;
}
.btn.primary { background: var(--green); }
.btn.primary:hover { background: var(--green-dark); }
.btn.wa { background: var(--wa); }
.btn.ghost {
  background: #fff;
  color: var(--green-dark);
  border: 1px solid var(--line);
}
.btn[aria-pressed="true"] {
  background: var(--green-dark);
  color: #fff;
}
.disclaimer {
  margin: 12px 0 24px;
  color: var(--muted);
  font-size: 0.9rem;
}
.composer {
  position: sticky;
  bottom: 0;
  z-index: 4;
  background: linear-gradient(180deg, transparent, var(--bg) 28%);
  padding: 12px 16px 18px;
}
.composer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  gap: 8px;
  align-items: flex-end;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 8px;
  box-shadow: var(--shadow);
}
.composer textarea {
  flex: 1;
  min-height: 48px;
  max-height: 140px;
  resize: vertical;
  border: 0;
  padding: 10px 12px;
  background: transparent;
}
.mic, .send {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 0;
  cursor: pointer;
}
.mic { background: var(--green-soft); color: var(--green-dark); }
.mic.listening { background: var(--danger); color: #fff; }
.send { background: var(--green); color: #fff; }
.status, .progress {
  text-align: center;
  color: var(--muted);
  min-height: 1.4em;
}
.bar {
  height: 6px;
  background: var(--line);
  border-radius: 99px;
  overflow: hidden;
  max-width: 1080px;
  margin: 8px auto 0;
}
.bar > span { display: block; height: 100%; width: 0; background: var(--green); }
.list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  gap: 12px;
  box-shadow: var(--shadow);
}
.item .thumb { width: 96px; height: 96px; object-fit: cover; border-radius: 10px; }
.skeleton {
  background: linear-gradient(90deg, #e9efe9 25%, #f7faf7 50%, #e9efe9 75%);
  background-size: 200% 100%;
  animation: shine 1.1s infinite;
  border-radius: 12px;
  min-height: 220px;
}
@keyframes shine { to { background-position: -200% 0; } }
.error, .empty {
  padding: 18px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  text-align: center;
}
.error { border-color: #f0c0bc; color: var(--danger); }
.compare-bar {
  position: sticky;
  bottom: 92px;
  z-index: 4;
  margin: 0 auto 10px;
  max-width: 1080px;
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
}
.modal {
  position: fixed;
  inset: 0;
  background: rgba(20, 40, 20, 0.45);
  display: grid;
  place-items: center;
  padding: 16px;
  z-index: 20;
}
.modal[hidden], [hidden] { display: none !important; }
.modal-card {
  width: min(920px, 100%);
  max-height: min(86vh, 820px);
  overflow: auto;
  padding: 20px;
}
.modal-card h2 { margin-top: 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
th, td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: right;
  vertical-align: top;
}
th { background: var(--green-soft); }
tr.best td { background: #f3fbf3; }
.wa-preview {
  white-space: pre-wrap;
  background: #f6faf6;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
}
@media (max-width: 720px) {
  .list { grid-template-columns: 1fr; }
  .app-header { flex-wrap: wrap; }
  .compare-bar { bottom: 100px; flex-direction: column; align-items: stretch; }
}