/* Invoice Maker. Wide screens: the form on the left, the bar (total + Download) and the live
   preview on the right, sticky. Below 900 px: Edit / Preview tabs and a fixed bottom bar. */
.iv-wrap { max-width: 1240px; margin: 0 auto; padding: 96px 16px 48px; color: var(--text-primary); box-sizing: border-box;
  --iv-accent: var(--color-primary, #6366f1); --iv-warn: var(--color-warning, #f59e0b); --iv-ok: #4ade80; --iv-bad: #f43f5e; --iv-info: #60a5fa; }
:root[data-theme="light"] .iv-wrap { --iv-accent: #4f46e5; --iv-warn: #b45309; --iv-ok: #15803d; --iv-bad: #e11d48; --iv-info: #1d4ed8; }
.iv-wrap *, .iv-wrap *::before, .iv-wrap *::after { box-sizing: border-box; }
.iv-wrap [hidden] { display: none !important; }
.iv-intro h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 0 0 8px; }
.iv-intro p { color: var(--text-secondary); margin: 0 0 16px; max-width: 70ch; }
.iv-file { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* top bar: type, document language, conversion */
.iv-top { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: end; margin-bottom: 16px; padding: 12px 16px; border-radius: 12px;
  background: var(--bg-secondary); border: 1px solid var(--border-color); min-width: 0; }
.iv-top .iv-field { flex: 1 1 130px; max-width: 260px; }
.iv-top-msg { flex: 1 1 100%; }

.iv-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); min-width: 0; }
.iv-form { display: grid; gap: 16px; min-width: 0; margin: 0; }
.iv-side { display: grid; gap: 12px; min-width: 0; align-content: start; }

.iv-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 16px; display: grid; gap: 12px; min-width: 0; }
.iv-card h2 { font-size: 1.1rem; margin: 0; }
.iv-field { display: grid; gap: 4px; min-width: 0; }
.iv-label { font-weight: 600; font-size: 0.9rem; color: var(--text-secondary); }
.iv-req { font-weight: 500; font-size: 0.78rem; color: var(--iv-accent); }
.iv-input { width: 100%; max-width: 100%; min-width: 0; padding: 9px 10px; border-radius: 8px; border: 1px solid var(--border-color);
  background: var(--bg-primary); color: var(--text-primary); font: inherit; font-size: 16px; min-height: 44px; }
textarea.iv-input { resize: vertical; line-height: 1.4; }
.iv-input:focus-visible { outline: 2px solid var(--iv-accent); outline-offset: 1px; }
.iv-input.is-bad { border-color: var(--iv-bad); box-shadow: 0 0 0 1px var(--iv-bad); }
.iv-row2 { display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 560px) { .iv-row2 { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.iv-row-name { display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr) 96px; align-items: end; }
.iv-row-name:has(> .iv-hon[hidden]) { grid-template-columns: minmax(0, 1fr); }
.iv-hint { color: var(--text-secondary); font-size: 0.88rem; margin: 0; overflow-wrap: anywhere; }
.iv-hint--info { color: var(--iv-info); }
.iv-msg { margin: 0; font-weight: 600; color: var(--iv-warn); overflow-wrap: anywhere; font-size: 0.92rem; }
.iv-msg--ok { color: var(--iv-ok); }
.iv-msg:empty { display: none; }
.iv-check { display: flex; align-items: center; gap: 8px; font-weight: 600; cursor: pointer; min-height: 44px; }
.iv-check input { width: 20px; height: 20px; accent-color: var(--iv-accent); margin: 0; flex: 0 0 auto; }
.iv-check input:disabled + span { opacity: 0.5; }
.iv-remember { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; border-top: 1px solid var(--border-color); padding-top: 8px; }
.iv-link { background: none; border: 0; padding: 8px 4px; color: var(--iv-accent); font: inherit; font-weight: 600; text-decoration: underline; cursor: pointer; min-height: 44px; }

.iv-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--border-color); background: var(--bg-primary);
  color: var(--text-primary); border-radius: 10px; padding: 9px 16px; cursor: pointer; font: inherit; font-weight: 600; line-height: 1.2; min-height: 44px; }
.iv-btn:hover:not(:disabled) { border-color: var(--iv-accent); }
.iv-btn--primary { background: var(--iv-accent); border-color: var(--iv-accent); color: #fff; }
.iv-btn--primary:hover:not(:disabled) { background: var(--color-primary-active, #4f46e5); }
.iv-btn--quiet { background: transparent; color: var(--text-secondary); }
.iv-btn--small { min-height: 40px; padding: 6px 12px; font-size: 0.92rem; }
.iv-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.iv-btn:focus-visible, .iv-icon:focus-visible, .iv-link:focus-visible { outline: 2px solid var(--iv-accent); outline-offset: 2px; }
#ivAddLine { justify-self: start; }
.iv-reset { display: flex; justify-content: flex-start; }

/* images */
.iv-img { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; min-height: 44px; }
.iv-thumb { width: 56px; height: 56px; object-fit: contain; border-radius: 8px; border: 1px solid var(--border-color);
  background: repeating-conic-gradient(#d9dce3 0% 25%, #f4f5f8 0% 50%) 50% / 12px 12px; }

/* line items */
.iv-lines { display: grid; gap: 12px; min-width: 0; border-radius: 10px; }
.iv-lines.is-bad { outline: 2px solid var(--iv-bad); outline-offset: 4px; }
.iv-line { display: grid; gap: 8px; padding: 12px; border-radius: 10px; border: 1px solid var(--border-color); background: var(--bg-primary); min-width: 0; }
.iv-line-head { display: flex; align-items: center; gap: 8px; min-width: 0; }
.iv-line-title { font-weight: 700; font-size: 0.9rem; }
.iv-amt { margin-left: auto; font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.iv-line-acts { display: inline-flex; gap: 4px; flex: 0 0 auto; }
.iv-icon { width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-secondary); color: var(--text-primary);
  font: 700 18px/1 system-ui, sans-serif; cursor: pointer; display: inline-grid; place-items: center; padding: 0; }
.iv-icon:disabled { opacity: 0.35; cursor: not-allowed; }
.iv-icon[data-act="del"]:hover:not(:disabled) { border-color: var(--iv-bad); color: var(--iv-bad); }
.iv-line-grid { display: grid; gap: 8px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
@media (min-width: 560px) { .iv-line-grid { grid-template-columns: minmax(0, 0.8fr) minmax(0, 0.9fr) minmax(0, 1.3fr) minmax(0, 1fr); } }

.iv-stamp { display: grid; gap: 4px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--iv-warn);
  background: color-mix(in srgb, var(--iv-warn) 10%, var(--bg-secondary)); }
.iv-stamp p { margin: 0; font-weight: 600; }
.iv-with { display: grid; gap: 2px; }

/* bar: total + Download */
.iv-bar { display: grid; gap: 6px; padding: 12px 16px; border-radius: 12px; background: var(--bg-secondary); border: 1px solid var(--border-color);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18); min-width: 0; }
.iv-bar-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; min-width: 0; }
.iv-sum { display: grid; min-width: 0; flex: 1 1 auto; }
.iv-sum-label { font-size: 0.8rem; color: var(--text-secondary); font-weight: 600; }
.iv-sum-amt { font-size: 1.25rem; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.iv-bar .iv-btn--primary, .iv-bar #ivSendSign { flex: 0 0 auto; }

/* preview */
.iv-preview { display: grid; gap: 8px; min-width: 0; }
.iv-preview-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.iv-preview-head h2 { font-size: 1rem; margin: 0; color: var(--text-secondary); }
.iv-pagesel { width: auto; min-height: 40px; }
.iv-sheet { position: relative; min-width: 0; display: grid; justify-items: center; }
#ivCanvas { display: block; max-width: 100%; background: #fff; box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3); border-radius: 2px; }
#ivCanvas[width="300"][height="150"] { width: 100%; aspect-ratio: 1 / 1.414; height: auto; }
.iv-badge { position: absolute; top: 8px; right: 8px; padding: 4px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 600;
  background: rgba(15, 23, 42, 0.75); color: #fff; pointer-events: none; }

/* tabs (phone only) */
.iv-tabs { display: none; }

@media (min-width: 900px) {
  .iv-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
  .iv-side { position: sticky; top: 80px; }
}
@media (max-width: 899px) {
  .iv-wrap { padding-bottom: 160px; }
  .iv-tabs { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--border-color); border-radius: 10px; overflow: hidden;
    background: var(--bg-secondary); margin-bottom: 12px; position: sticky; top: 68px; z-index: 4; }
  .iv-tabs button { border: 0; background: transparent; color: var(--text-primary); font: inherit; font-weight: 600; padding: 8px 6px; cursor: pointer; min-height: 44px; }
  .iv-tabs button + button { border-left: 1px solid var(--border-color); }
  .iv-tabs button[aria-selected="true"] { background: var(--iv-accent); color: #fff; }
  .iv-wrap[data-view="edit"] .iv-preview { display: none; }
  .iv-wrap[data-view="preview"] .iv-form { display: none; }
  .iv-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; border-radius: 12px 12px 0 0; border-bottom: 0;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); max-height: 50vh; overflow-y: auto; }
}

.img-foot { text-align: center; padding: 24px 16px; font-size: 0.875rem; }
.img-foot a { color: var(--text-secondary); }
.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; }
@media (max-width: 899px) { .img-foot { padding-bottom: 150px; } .iv-wrap { padding-bottom: 24px; } }
@media print { .nav, .img-foot, .iv-bar, .iv-tabs { display: none; } }