:root {
  color-scheme: dark light;
  --bg: #111318;
  --bg-soft: #171b22;
  --panel: rgba(255, 255, 255, 0.07);
  --panel-strong: rgba(255, 255, 255, 0.11);
  --text: #f4f7fb;
  --muted: #aeb8c8;
  --line: rgba(255, 255, 255, 0.13);
  --green: #42d69a;
  --blue: #79a8ff;
  --amber: #f3c969;
  --rose: #ff7896;
  --violet: #b99cff;
  --cyan: #6fd4e8;
  --danger: #ff6b80;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.32);
  --radius: 8px;
  font-family: Tahoma, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(145deg, rgba(66, 214, 154, 0.12), transparent 34%),
    linear-gradient(315deg, rgba(121, 168, 255, 0.13), transparent 38%),
    var(--bg);
}

button, input, textarea, select { font: inherit; }
button { white-space: nowrap; }
a { color: inherit; text-decoration: none; }
code { direction: ltr; unicode-bidi: plaintext; }

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px;
  background: rgba(10, 12, 16, 0.78);
  border-left: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  color: #0d1117;
  font-weight: 900;
  background: linear-gradient(135deg, var(--green), var(--blue));
}

.brand strong { display: block; font-size: 16px; }
.brand small { color: var(--muted); }

.nav {
  display: grid;
  gap: 6px;
  margin: 22px 0;
}

.nav a {
  padding: 11px 12px;
  border-radius: var(--radius);
  color: var(--muted);
  transition: background 0.18s ease, color 0.18s ease;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
  background: var(--panel-strong);
}

.connection-card {
  padding: 14px;
  border: 1px solid rgba(66, 214, 154, 0.28);
  border-radius: var(--radius);
  background: rgba(66, 214, 154, 0.08);
}

.connection-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}

.connection-card strong { color: var(--green); }

.main {
  width: 100%;
  max-width: 1500px;
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  min-height: 210px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--green);
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 4.8vw, 54px);
  line-height: 1.2;
}

h2 {
  margin: 0;
  font-size: 22px;
}

p {
  color: var(--muted);
  line-height: 1.85;
}

.top-actions,
.action-row,
.table-toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.stat-card,
.panel-section {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.stat-card {
  min-height: 116px;
  padding: 18px;
}

.stat-card span {
  color: var(--muted);
  font-size: 14px;
}

.stat-card strong {
  display: block;
  margin-top: 16px;
  font-size: 34px;
}

.tone-green { border-color: rgba(66, 214, 154, 0.28); }
.tone-blue { border-color: rgba(121, 168, 255, 0.28); }
.tone-amber { border-color: rgba(243, 201, 105, 0.30); }
.tone-rose { border-color: rgba(255, 120, 150, 0.30); }
.tone-violet { border-color: rgba(185, 156, 255, 0.30); }
.tone-cyan { border-color: rgba(111, 212, 232, 0.30); }

.panel-section {
  padding: 22px;
  margin-bottom: 18px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  margin-bottom: 16px;
}

.section-head p { margin: 6px 0 0; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.form-grid.faq-form {
  grid-template-columns: 1fr 1fr 150px;
  align-items: end;
}

.form-grid.order-form {
  grid-template-columns: 180px 170px 1fr 150px;
  align-items: end;
}

.form-stack {
  display: grid;
  gap: 12px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(280px, 410px) 1fr;
  gap: 14px;
  align-items: stretch;
}

.full { grid-column: 1 / -1; }

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(8, 10, 14, 0.62);
  color: var(--text);
  padding: 12px 13px;
  outline: none;
  min-height: 44px;
}

textarea {
  min-height: 112px;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  border-color: rgba(66, 214, 154, 0.7);
  box-shadow: 0 0 0 3px rgba(66, 214, 154, 0.12);
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: left 16px center, left 10px center;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.btn {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 15px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, opacity 0.18s ease;
}

.btn:hover { transform: translateY(-1px); background: rgba(255, 255, 255, 0.13); }
.btn:disabled { cursor: wait; opacity: 0.62; transform: none; }
.btn.primary {
  color: #0b1117;
  border-color: transparent;
  background: linear-gradient(135deg, var(--green), var(--blue));
  font-weight: 900;
}
.btn.secondary {
  border-color: rgba(66, 214, 154, 0.32);
  background: rgba(66, 214, 154, 0.12);
}
.btn.danger {
  border-color: rgba(255, 107, 128, 0.42);
  color: #ffd8de;
  background: rgba(255, 107, 128, 0.12);
}

.upload-panel {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 18px;
  border: 1px dashed rgba(66, 214, 154, 0.34);
  border-radius: var(--radius);
  background: rgba(66, 214, 154, 0.06);
}

.file-control input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
}

.file-control span {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 13px;
  background: rgba(8, 10, 14, 0.62);
  color: var(--text);
  cursor: pointer;
}

.result-box,
.answer-box {
  margin: 0;
  min-height: 96px;
  white-space: pre-wrap;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.24);
  padding: 13px;
  color: #dffbf1;
  line-height: 1.8;
}

.table-toolbar {
  margin-top: 16px;
}

.table-toolbar input {
  max-width: 360px;
}

.table-wrap {
  margin-top: 14px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

table {
  width: 100%;
  min-width: 800px;
  border-collapse: collapse;
}

th,
td {
  padding: 13px;
  border-bottom: 1px solid var(--line);
  color: #e7edf7;
  text-align: right;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: rgba(255, 255, 255, 0.10);
  color: #ffffff;
  font-weight: 900;
}

tbody tr:hover td {
  background: rgba(255, 255, 255, 0.04);
}

.empty-row td {
  text-align: center;
  color: var(--muted);
  padding: 26px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid rgba(66, 214, 154, 0.28);
  color: #c9f8e5;
  background: rgba(66, 214, 154, 0.10);
}

.badge.warn {
  color: #ffe9b5;
  border-color: rgba(243, 201, 105, 0.30);
  background: rgba(243, 201, 105, 0.10);
}

.badge.danger {
  color: #ffd8de;
  border-color: rgba(255, 107, 128, 0.32);
  background: rgba(255, 107, 128, 0.10);
}

.row-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.ai-box {
  display: grid;
  gap: 12px;
}

.guide code {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.25);
}

.guide li {
  margin-bottom: 10px;
  color: #e5edf7;
  line-height: 1.8;
}

.toast {
  position: fixed;
  left: 22px;
  bottom: 22px;
  max-width: min(420px, calc(100vw - 44px));
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #161b23;
  box-shadow: var(--shadow);
  color: var(--text);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.ok { border-color: rgba(66, 214, 154, 0.48); }
.toast.error { border-color: rgba(255, 107, 128, 0.52); color: #ffdbe1; }

@media (prefers-color-scheme: light) {
  :root {
    --bg: #eef2f6;
    --bg-soft: #ffffff;
    --panel: rgba(255, 255, 255, 0.78);
    --panel-strong: rgba(255, 255, 255, 0.96);
    --text: #111827;
    --muted: #5f6b7a;
    --line: rgba(17, 24, 39, 0.12);
    --shadow: 0 18px 45px rgba(27, 39, 58, 0.12);
  }

  body {
    background:
      linear-gradient(145deg, rgba(66, 214, 154, 0.16), transparent 34%),
      linear-gradient(315deg, rgba(121, 168, 255, 0.16), transparent 38%),
      var(--bg);
  }

  .sidebar { background: rgba(255, 255, 255, 0.76); }
  input, textarea, select, .file-control span { background: rgba(255, 255, 255, 0.72); }
  .result-box, .answer-box { background: rgba(17, 24, 39, 0.05); color: #14372b; }
  th, td { color: #1f2937; }
  th { background: rgba(17, 24, 39, 0.06); color: #111827; }
  .toast { background: #ffffff; }
}

@media (max-width: 1120px) {
  .stats-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .two-column,
  .form-grid,
  .form-grid.faq-form,
  .form-grid.order-form { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: relative;
    height: auto;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }
  .nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .topbar { flex-direction: column; align-items: stretch; }
}

@media (max-width: 560px) {
  .main,
  .sidebar { padding: 14px; }
  .stats-grid { grid-template-columns: 1fr; }
  .panel-section,
  .topbar { padding: 16px; }
  h1 { font-size: 30px; }
  .nav { grid-template-columns: 1fr; }
  .top-actions,
  .action-row,
  .table-toolbar { align-items: stretch; }
  .top-actions > *,
  .action-row > *,
  .table-toolbar > * { width: 100%; }
  .table-toolbar input { max-width: none; }
}