:root {
  color-scheme: light;
  --bg: #f4f6f5;
  --surface: #ffffff;
  --surface-2: #edf7f2;
  --ink: #17211d;
  --muted: #5a6862;
  --line: #d8e1dc;
  --accent: #007a5a;
  --accent-strong: #005f46;
  --blue: #1b5f9e;
  --danger: #be3a34;
  --warn: #a66300;
  --shadow: 0 22px 70px rgba(30, 46, 39, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(0, 122, 90, 0.08), transparent 34%),
    linear-gradient(315deg, rgba(27, 95, 158, 0.08), transparent 35%),
    var(--bg);
  font-family: Arial, "Noto Sans Thai", Tahoma, sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  padding: 0 16px;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
  transition: transform 140ms ease, background-color 140ms ease, opacity 140ms ease;
}

button:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

button:disabled {
  cursor: wait;
  opacity: 0.64;
  transform: none;
}

button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  flex: 0 0 auto;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
  display: grid;
  grid-template-columns: minmax(310px, 0.95fr) minmax(420px, 1.35fr);
  gap: 18px;
  align-items: start;
}

.panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.control-panel,
.print-panel,
.log-panel {
  padding: 18px;
}

.brand-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}

.brand-mark {
  width: 52px;
  aspect-ratio: 1;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--surface-2);
}

.brand-mark svg {
  width: 34px;
  height: 34px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  line-height: 1.15;
}

h2 {
  font-size: 18px;
  line-height: 1.2;
}

.brand-row p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
}

.status-pill {
  min-width: 118px;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  color: var(--muted);
  background: #eef2f0;
  border: 1px solid var(--line);
  font-size: 13px;
  white-space: nowrap;
}

.status-pill span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: currentColor;
}

.status-pill[data-state="checking"] {
  color: var(--warn);
  background: #fff7e8;
}

.status-pill[data-state="online"] {
  color: var(--accent);
  background: #eaf8f2;
}

.status-pill[data-state="offline"] {
  color: var(--danger);
  background: #fff0ef;
}

.settings-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr 112px;
  gap: 12px;
}

.system-field {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.2;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: var(--surface);
  outline: none;
}

input,
select {
  min-height: 42px;
  padding: 0 11px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 90, 0.14);
}

input:disabled {
  color: #7a8580;
  background: #f2f5f3;
  cursor: not-allowed;
}

.toolbar,
.print-actions {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
}

.toolbar button {
  flex: 1 1 120px;
}

.secondary {
  color: var(--ink);
  background: #e9eeeb;
}

.secondary:hover {
  background: #dfe7e2;
}

.print-panel {
  min-height: 532px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}

.inline-options {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.select-wrap {
  min-width: 112px;
}

.check-wrap {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: var(--surface);
}

.check-wrap input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

textarea {
  min-height: 344px;
  resize: vertical;
  padding: 14px;
  line-height: 1.5;
  font-family: Consolas, "Courier New", "Noto Sans Thai", monospace;
  font-size: 15px;
}

.file-tools {
  margin-top: 12px;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.file-picker {
  min-width: 0;
}

input[type="file"] {
  padding: 8px;
  line-height: 1.3;
}

#fileStatus {
  min-height: 42px;
  display: flex;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.file-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.file-actions button {
  min-width: 118px;
}

.print-actions {
  justify-content: space-between;
}

.print-actions label {
  width: 118px;
}

.primary {
  min-width: 150px;
  background: var(--blue);
}

.primary:hover {
  background: #134d80;
}

.log-panel {
  grid-column: 1 / -1;
}

.icon-button {
  width: 38px;
  min-height: 38px;
  padding: 0;
  color: var(--muted);
  background: #eef2f0;
}

.icon-button:hover {
  color: var(--danger);
  background: #fff0ef;
}

ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

li {
  min-height: 42px;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) minmax(120px, auto);
  gap: 10px;
  align-items: center;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}

li time {
  color: var(--muted);
  font-size: 13px;
}

li span,
li small {
  overflow-wrap: anywhere;
}

li small {
  color: var(--muted);
}

li[data-type="ok"] {
  border-color: rgba(0, 122, 90, 0.28);
}

li[data-type="error"] {
  border-color: rgba(190, 58, 52, 0.32);
  background: #fffafa;
}

@media (max-width: 820px) {
  .shell {
    width: min(100% - 20px, 620px);
    grid-template-columns: 1fr;
    padding: 10px 0;
    gap: 10px;
  }

  .brand-row {
    grid-template-columns: 46px minmax(0, 1fr);
  }

  .brand-mark {
    width: 46px;
  }

  .status-pill {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .settings-grid {
    grid-template-columns: 1fr 1fr;
  }

  .section-head {
    align-items: start;
    flex-direction: column;
  }

  .inline-options {
    width: 100%;
    justify-content: stretch;
  }

  .select-wrap,
  .check-wrap {
    flex: 1 1 150px;
  }

  textarea {
    min-height: 300px;
  }

  .file-tools {
    grid-template-columns: 1fr;
  }

  .file-actions {
    width: 100%;
  }

  .file-actions button {
    flex: 1 1 50%;
  }

  li {
    grid-template-columns: 72px 1fr;
  }

  li small {
    grid-column: 2;
  }
}

@media (max-width: 440px) {
  .control-panel,
  .print-panel,
  .log-panel {
    padding: 14px;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .toolbar button,
  .file-actions button,
  .print-actions button,
  .print-actions label {
    width: 100%;
    flex: 1 1 100%;
  }

  .file-actions {
    flex-wrap: wrap;
  }

  h1 {
    font-size: 21px;
  }
}