:root {
  --bg: #e9eef5;
  --panel: #edf2f8;
  --text: #273142;
  --muted: #6b7280;
  --accent: #5c7cfa;
  --input: #f8fbff;
  --shadow-dark: #c9d2df;
  --shadow-light: #ffffff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}
header {
  padding: 18px 22px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
h1 { margin: 0; font-size: 22px; }
.tabs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 9px;
  padding: 10px 18px;
}
.tab-button, button {
  border: 0;
  border-radius: 14px;
  background: var(--panel);
  color: var(--text);
  box-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light);
  cursor: pointer;
  transition: 120ms ease;
}
.tab-button {
  min-height: 50px;
  padding: 7px 6px;
  font-size: 12px;
  white-space: pre-line;
}
.tab-button.active, button:hover {
  color: var(--accent);
  box-shadow: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light);
}
button:disabled, button:disabled:hover {
  opacity: .5;
  cursor: not-allowed;
  color: var(--text);
  box-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light);
}
main { padding: 10px 18px 28px; }
.panel {
  display: none;
  background: var(--panel);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 10px 10px 24px var(--shadow-dark), -10px -10px 24px var(--shadow-light);
}
.panel.active { display: block; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  align-items: end;
}
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
input, textarea, select {
  width: 100%;
  border: 0;
  border-radius: 12px;
  background: var(--input);
  color: var(--text);
  padding: 11px 12px;
  outline: none;
  box-shadow: inset 3px 3px 6px #d7dee8, inset -3px -3px 6px #ffffff;
  font: inherit;
}
textarea { min-height: 130px; resize: vertical; }
button {
  padding: 11px 16px;
  font-weight: 600;
  margin-top: 14px;
}
.records { display: grid; gap: 16px; margin-top: 18px; }
.record {
  border-radius: 16px;
  padding: 16px;
  background: var(--panel);
  box-shadow: inset 3px 3px 7px #d7dee8, inset -3px -3px 7px #ffffff;
}
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hint { color: var(--muted); font-size: 13px; }
.stub-notice {
  background: #fff3cd;
  color: #7a5b00;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13px;
  margin-bottom: 16px;
}