:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --border: #d8deea;
  --text: #1f2d3d;
  --muted: #506070;
  --accent: #1b6dc1;
  --accent-strong: #0d4f90;
  --shadow: 0 8px 30px rgba(15, 38, 70, 0.08);
  --success-bg: #e9f7ef;
  --success-text: #1e6b3b;
  --warning-bg: #eef5ff;
  --warning-text: #1b5ca8;
  --error-bg: #fff0ed;
  --error-text: #9a3627;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Verdana", "Segoe UI", Tahoma, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 20%, rgba(27, 109, 193, 0.08), transparent 25%),
    radial-gradient(circle at 80% 0%, rgba(15, 38, 70, 0.08), transparent 22%),
    var(--bg);
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
input,
select {
  font-family: inherit;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 18px;
  padding: 18px 16px 24px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  flex: 1 0 auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 16px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 17px;
  letter-spacing: 0.4px;
  color: var(--accent-strong);
}

.control-group {
  margin-bottom: 14px;
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
}

select,
input[type="text"] {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #f7f9fd;
  color: var(--text);
}

.button-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 10px;
}

.button-row input[type="button"],
.button-row button {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, #ffffff, #f3f6fb);
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
}

.button-row input[type="button"]:hover,
.button-row button:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 10px rgba(27, 109, 193, 0.15);
}

.button-row button[hidden] {
  display: none;
}

.button-row button.inline-nav {
  min-width: 50px;
}

.status-banner {
  min-height: 44px;
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: #f7f9fd;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.status-banner[data-tone="loading"] {
  background: var(--warning-bg);
  border-color: rgba(27, 92, 168, 0.18);
  color: var(--warning-text);
}

.status-banner[data-tone="ready"] {
  background: var(--success-bg);
  border-color: rgba(30, 107, 59, 0.16);
  color: var(--success-text);
}

.status-banner[data-tone="error"] {
  background: var(--error-bg);
  border-color: rgba(154, 54, 39, 0.16);
  color: var(--error-text);
}

.viewer {
  text-align: center;
}

#pays {
  margin: 6px 0 12px;
  font-size: 22px;
  color: var(--accent-strong);
}

.image-stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 10px;
  justify-items: center;
}

.image-stack img {
  width: 100%;
  max-width: 100%;
  max-height: calc(100vh - 260px);
  object-fit: contain;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.08);
  background: #ffffff;
}

.viewer-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 12px;
}

.viewer-actions a {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #f7f9fd;
}

.viewer-actions a[hidden] {
  display: none;
}

.graphic-path {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
}

.hidden {
  visibility: hidden;
  display: none;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
}