:root {
  color-scheme: light;
  --ink: #17352b;
  --muted: #66766f;
  --line: #dfe7e2;
  --paper: #ffffff;
  --wash: #f3f7f4;
  --green: #1f6b4d;
  --green-dark: #154d38;
  --danger: #a13933;
  --warning: #8a5a00;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--wash); }
button, input, textarea, select { font: inherit; }
button { border: 0; border-radius: .6rem; padding: .7rem 1rem; color: white; background: var(--green); cursor: pointer; font-weight: 650; }
button:hover { background: var(--green-dark); }
button:disabled { cursor: not-allowed; opacity: .48; }
button.secondary { color: var(--ink); background: #e7eee9; }
button.danger { background: var(--danger); }
input, textarea, select { width: 100%; border: 1px solid #bdcbc3; border-radius: .55rem; padding: .75rem; color: var(--ink); background: white; }
textarea { resize: vertical; line-height: 1.5; }
label { display: block; margin: .75rem 0 .4rem; font-weight: 650; }
h1, h2, h3, h4, p { margin-top: 0; }
pre { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; line-height: 1.5; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.eyebrow { margin-bottom: .2rem; color: var(--green); font-size: .76rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.5rem; color: white; background: var(--ink); }
.topbar h1 { margin-bottom: 0; font-size: 1.35rem; }
.topbar .eyebrow { color: #acd9c2; }
.topbar .muted { color: #cad9d1; }
.demo-banner { display: flex; align-items: center; justify-content: center; gap: .8rem; padding: .85rem 1.2rem; color: #4c2d00; background: #ffd978; border-bottom: 2px solid #d98b00; text-align: center; }
.demo-banner strong { white-space: nowrap; letter-spacing: .04em; }
.demo-composer-notice { padding: .75rem; border: 1px solid #e2aa35; border-radius: .55rem; color: #5f3900; background: #fff4cf; font-weight: 650; }
.demo-mode .composer { border-color: #e2aa35; background: #fffcf2; }
.demo-mode .composer textarea:disabled,
.demo-mode .composer select:disabled { color: #6e746f; background: #f0f1ef; }
.top-actions, .button-row { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.login-card { width: min(28rem, calc(100% - 2rem)); margin: 5rem auto; padding: 2rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--paper); box-shadow: 0 12px 40px rgba(20, 55, 42, .08); }
.login-card button { width: 100%; margin-top: 1rem; }
.workspace { display: grid; grid-template-columns: minmax(18rem, 25rem) minmax(0, 1fr); min-height: calc(100vh - 78px); }
.inbox-panel { padding: 1.2rem; border-right: 1px solid var(--line); background: var(--paper); }
.case-panel { padding: 1.4rem; }
.panel-heading, .case-title-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.notice { padding: .7rem; border-radius: .55rem; color: #4e6158; background: #edf4ef; font-size: .87rem; }
.case-list { display: grid; gap: .55rem; }
.case-item { display: grid; gap: .25rem; width: 100%; padding: .8rem; text-align: left; color: var(--ink); background: var(--wash); border: 1px solid transparent; }
.case-item:hover { border-color: #93b5a2; background: #e8f1eb; }
.case-item span { color: var(--muted); font-size: .82rem; font-weight: 400; }
.empty-state { max-width: 42rem; margin: 8rem auto; text-align: center; color: var(--muted); }
.case-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; margin: 1rem 0; }
.info-card, .composer { padding: 1rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--paper); }
.info-card.wide { grid-column: 1 / -1; }
.info-card h3 { padding-bottom: .55rem; border-bottom: 1px solid var(--line); font-size: 1rem; }
.composer { margin-bottom: 3rem; }
.badge { display: inline-block; max-width: 23rem; padding: .45rem .65rem; border-radius: 999px; font-size: .8rem; font-weight: 750; text-align: center; }
.badge.success { color: #14593d; background: #dcefe4; }
.badge.warning { color: #7a4a00; background: #fff0cc; }
.button-row { margin-top: .8rem; }
.draft-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
.message { min-height: 1.5rem; margin: .8rem 0 0; color: var(--muted); }
.message.success { color: #176341; }
.message.warning { color: var(--warning); }
.message.error { color: var(--danger); }
.confirmation { margin-top: 1rem; padding: 1rem; border: 2px solid #d9a9a5; border-radius: .7rem; background: #fff7f6; }
.confirmation-details { display: grid; grid-template-columns: minmax(7rem, 10rem) 1fr; gap: .4rem .8rem; }
.confirmation-details dt { font-weight: 750; }
.confirmation-details dd { margin: 0; overflow-wrap: anywhere; }
.hash-value { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .82rem; }
.confirmation-body { max-height: 20rem; overflow: auto; padding: .8rem; border: 1px solid #d9a9a5; border-radius: .5rem; background: white; }

@media (max-width: 850px) {
  .workspace { grid-template-columns: 1fr; }
  .inbox-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .case-grid { grid-template-columns: 1fr; }
  .draft-options { grid-template-columns: 1fr; }
  .info-card.wide { grid-column: auto; }
  .topbar { align-items: flex-start; }
  .demo-banner { align-items: flex-start; flex-direction: column; text-align: left; }
}