:root {
  --bg: #0f1220;
  --card: #191d2f;
  --card-2: #212640;
  --text: #e7e9f3;
  --muted: #9aa0bd;
  --accent: #6d8bff;
  --accent-2: #4f6bff;
  --danger: #ff5d6c;
  --ok: #3ddc97;
  --border: #2a3050;
  --radius: 12px;
  font-family:
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 70% -10%, #1b2140, var(--bg));
  color: var(--text);
  min-height: 100vh;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}

.app-header h1 {
  font-size: 20px;
  margin: 0;
  letter-spacing: 0.3px;
}
.app-header h1 span {
  color: var(--accent);
}

.status {
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--card-2);
  border: 1px solid var(--border);
}
.status[data-state="ok"] {
  color: var(--ok);
  border-color: color-mix(in oklab, var(--ok) 40%, var(--border));
}
.status[data-state="error"] {
  color: var(--danger);
  border-color: color-mix(in oklab, var(--danger) 40%, var(--border));
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card h2 {
  margin: 0 0 14px;
  font-size: 16px;
}
.card h3 {
  font-size: 14px;
  margin: 16px 0 8px;
}

.row {
  display: flex;
  gap: 16px;
  align-items: stretch;
  flex-wrap: wrap;
}
fieldset {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  flex: 1;
  min-width: 240px;
}
legend {
  color: var(--muted);
  font-size: 12px;
  padding: 0 6px;
}
.or {
  align-self: center;
  color: var(--muted);
}
.inline {
  margin-right: 12px;
  font-size: 14px;
}

button,
.file-btn {
  background: var(--card-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 14px;
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s;
}
button:hover,
.file-btn:hover {
  border-color: var(--accent);
}
button.primary {
  background: var(--accent-2);
  border-color: var(--accent-2);
}
button.primary:hover {
  background: var(--accent);
}
button.danger {
  border-color: color-mix(in oklab, var(--danger) 50%, var(--border));
  color: var(--danger);
}
button.small {
  padding: 6px 10px;
  font-size: 12px;
}
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

input[type="text"],
textarea {
  width: 100%;
  background: #12162a;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  margin-bottom: 10px;
  font-family: inherit;
}
textarea {
  resize: vertical;
}

.pair-result {
  display: flex;
  gap: 20px;
  margin-top: 18px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.qr {
  background: #fff;
  border-radius: 10px;
  padding: 10px;
  line-height: 0;
  width: fit-content;
}
.qr svg {
  display: block;
  width: 200px;
  height: 200px;
}
.pair-meta {
  flex: 1;
  min-width: 240px;
}
.token-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}
.token {
  background: #12162a;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px;
  word-break: break-all;
  flex: 1;
}
.sas {
  font-size: 30px;
  letter-spacing: 8px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.session-status {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.pill {
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--card-2);
  border: 1px solid var(--border);
  color: var(--muted);
}
.sas-pill {
  color: var(--accent);
  letter-spacing: 2px;
}

.send-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.dropzone {
  border: 1.5px dashed var(--border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  transition:
    border-color 0.15s,
    background 0.15s;
}
.dropzone.drag {
  border-color: var(--accent);
  background: color-mix(in oklab, var(--accent) 12%, transparent);
}

.incoming-box {
  background: #12162a;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  min-height: 60px;
  word-break: break-word;
}
.incoming-box img {
  max-width: 100%;
  max-height: 320px;
  border-radius: 8px;
}

.log {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
  max-height: 220px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.log .err {
  color: var(--danger);
}
.log .ok {
  color: var(--ok);
}

.app-footer {
  text-align: center;
  padding: 20px;
  font-size: 12px;
}
.muted {
  color: var(--muted);
}
.hidden {
  display: none !important;
}