.sec-wrap { max-width: 720px; margin: 0 auto; padding: 96px 16px 48px; color: var(--text-primary); box-sizing: border-box; }
.sec-wrap { --sec-ok: var(--color-success); --sec-warn: var(--color-warning, #f59e0b); --sec-err: var(--color-danger-hover, #f87171); }
:root[data-theme="light"] .sec-wrap { --sec-ok: #15803d; --sec-warn: #b45309; --sec-err: #b91c1c; }
.sec-wrap *, .sec-wrap *::before, .sec-wrap *::after { box-sizing: border-box; }
.sec-wrap [hidden] { display: none !important; }
.sec-intro h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 0 0 8px; }
.sec-intro p { color: var(--text-secondary); margin: 0 0 16px; max-width: 70ch; }
.sec-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px 16px; margin: 16px 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; min-width: 0; }
.sec-card h2 { font-size: 1.2rem; margin: 0; }
.sec-label { font-weight: 600; font-size: 0.95rem; }
.sec-field { width: 100%; max-width: 100%; min-width: 0; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); font: inherit; }
.sec-field:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.sec-textarea { resize: vertical; min-height: 7em; line-height: 1.45; }
.sec-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92rem; }
.sec-count { color: var(--text-secondary); font-size: 0.8rem; margin: -6px 0 0; text-align: right; min-height: 1em; }
.sec-row { display: flex; flex-wrap: wrap; gap: 12px; }
.sec-col { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; min-width: 0; }
.sec-col--grow { flex: 1 1 220px; }
.sec-hint { color: var(--text-secondary); font-size: 0.9rem; margin: 0; overflow-wrap: anywhere; }
.sec-warn { color: var(--sec-warn); font-weight: 600; margin: 0; }
.sec-msg { font-size: 1.1rem; font-weight: 600; margin: 0; }
.sec-error { color: var(--sec-err); min-height: 1em; margin: 0; }
.sec-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.sec-btn { display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border-color); background: transparent; color: var(--text-primary); border-radius: 10px; padding: 9px 16px; cursor: pointer; font: inherit; text-decoration: none; line-height: 1.2; }
.sec-btn:hover { border-color: var(--color-primary); }
.sec-btn--primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; font-weight: 600; }
.sec-btn--primary:hover { background: var(--color-primary-active, #4f46e5); }
.sec-btn:disabled { opacity: 0.55; cursor: progress; }
.sec-btn:focus-visible, .sec-file-btn:focus-within, .sec-chip-x:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.sec-file { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.sec-file-btn { position: relative; }
.sec-sr { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.sec-chip { display: inline-flex; align-items: center; gap: 8px; max-width: 100%; min-width: 0; padding: 4px 6px 4px 12px; border-radius: 999px; border: 1px solid var(--border-color); font-size: 0.9rem; }
.sec-chip-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.sec-chip-size { color: var(--text-secondary); white-space: nowrap; }
.sec-chip-x { border: 0; background: transparent; color: var(--text-primary); cursor: pointer; font-size: 1.1rem; line-height: 1; padding: 2px 6px; border-radius: 999px; }
.sec-chip-x:hover { background: var(--bg-primary); }
.sec-copyrow { display: flex; gap: 8px; min-width: 0; }
.sec-copyrow .sec-field { flex: 1 1 auto; }
.sec-filerow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: 10px; background: var(--bg-primary); min-width: 0; }
.sec-filerow .sec-chip-name { flex: 1 1 140px; font-weight: 600; }
#textWrap { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; }
.img-foot { text-align: center; padding: 24px 16px; font-size: 0.875rem; }
.img-foot a { color: var(--text-secondary); }
@media (max-width: 480px) {
  .sec-copyrow { flex-direction: column; }
  .sec-actions .sec-btn, .sec-copyrow .sec-btn { width: 100%; }
}

.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
[tabindex="-1"]:focus { outline: none; }