/* PDF Crusher — web interface styles (RTL-first, no external assets) */

:root {
  color-scheme: light dark;

  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f2f4f8;
  --text: #1b2230;
  --muted: #586174;
  --line: #dde1ea;
  --line-strong: #bfc7d6;

  --brand: #2b49c7;
  --brand-hover: #243da8;
  --on-brand: #ffffff;
  --brand-soft: rgba(43, 73, 199, 0.07);

  --ok: #157a3d;
  --ok-soft: #e8f5ed;
  --warn-bg: #fff6df;
  --warn-text: #6a4300;
  --warn-line: #efd79b;
  --err-bg: #fdeceb;
  --err-text: #9b1c12;
  --err-line: #f1bdb8;

  --focus: #2b49c7;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 8px 24px rgba(16, 24, 40, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d111a;
    --surface: #151b27;
    --surface-2: #1b2231;
    --text: #e9edf5;
    --muted: #a0aabd;
    --line: #273044;
    --line-strong: #3a455d;

    --brand: #7f9bff;
    --brand-hover: #9bb1ff;
    --on-brand: #0b1020;
    --brand-soft: rgba(127, 155, 255, 0.1);

    --ok: #5fd18b;
    --ok-soft: #14261c;
    --warn-bg: #2a2111;
    --warn-text: #f2c76b;
    --warn-line: #4a3a18;
    --err-bg: #2c1614;
    --err-text: #ff9b92;
    --err-line: #522724;

    --focus: #9bb1ff;
    --shadow: none;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, "Segoe UI", "Noto Sans Arabic", Tahoma, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
}

[hidden] {
  display: none !important;
}

svg {
  display: block;
  flex: none;
}

/* ---------- Layout ---------- */

.page {
  flex: 1;
  width: min(100% - 32px, 560px);
  margin-inline: auto;
  padding-block: 40px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.intro {
  text-align: center;
  margin-block-end: 24px;
}

.intro h1 {
  margin: 0 0 6px;
  font-size: clamp(1.35rem, 1.15rem + 0.9vw, 1.65rem);
  font-weight: 700;
  line-height: 1.4;
}

.intro p {
  margin: 0;
  color: var(--muted);
  font-size: 0.975rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

/* ---------- Focus ---------- */

:where(a, button):focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.state:focus {
  outline: none; /* programmatic focus target only */
}

/* ---------- Upload area ---------- */

.drop {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 32px 20px 28px;
  text-align: center;
  cursor: pointer;
  color: var(--muted);
  background: var(--surface-2);
  border: 1.5px dashed var(--line-strong);
  border-radius: 12px;
  transition: border-color 0.15s, background-color 0.15s;
}

.drop:hover,
.drop.over {
  border-color: var(--brand);
  background: var(--brand-soft);
}

/* The native input stays focusable but visually hidden */
.drop input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.drop:focus-within {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* Hide the ring for mouse users where :has() is supported; otherwise the ring above stays */
.drop:focus-within:not(:has(input:focus-visible)) {
  outline: none;
}

.drop-icon {
  inline-size: 40px;
  block-size: 40px;
  color: var(--brand);
  margin-block-end: 6px;
}

.drop-title {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.drop-hint {
  font-size: 0.925rem;
}

.drop-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 46px;
  margin-block-start: 14px;
  padding-inline: 26px;
  border-radius: 10px;
  background: var(--brand);
  color: var(--on-brand);
  font-weight: 600;
  font-size: 1rem;
  transition: background-color 0.15s;
}

.drop:hover .drop-cta {
  background: var(--brand-hover);
}

.drop-limits {
  margin-block-start: 12px;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---------- Shared state blocks ---------- */

.state {
  display: block;
}

.file-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: start;
}

.file-icon {
  inline-size: 28px;
  block-size: 28px;
  color: var(--brand);
}

.file-meta {
  min-inline-size: 0;
  flex: 1;
}

.name {
  font-weight: 600;
  line-height: 1.5;
  unicode-bidi: plaintext;      /* Latin or Arabic file names each render in their own direction */
  text-align: right;            /* the page is RTL; match-parent keeps it aligned to the parent's start */
  text-align: match-parent;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-size {
  font-size: 0.875rem;
  color: var(--muted);
}

/* ---------- Progress ---------- */

.bar {
  block-size: 8px;
  margin-block: 18px 12px;
  border-radius: 99px;
  background: var(--line);
  overflow: hidden;
}

.bar > i {
  display: block;
  block-size: 100%;
  inline-size: 0;
  border-radius: inherit;
  background: var(--brand);
  transition: inline-size 0.2s;
}

.bar.busy > i {
  inline-size: 38%;
  animation: slide 1.3s ease-in-out infinite alternate;
}

@keyframes slide {
  from { margin-inline-start: 0; }
  to { margin-inline-start: 62%; }
}

@media (prefers-reduced-motion: reduce) {
  .bar.busy > i {
    animation: none;
    inline-size: 100%;
    opacity: 0.45;
  }
  .bar > i,
  .drop,
  .drop-cta,
  .btn {
    transition: none;
  }
}

.msg {
  margin: 0;
  text-align: center;
  font-size: 0.975rem;
}

/* ---------- Result ---------- */

.result-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-block-end: 14px;
}

.result-icon {
  inline-size: 28px;
  block-size: 28px;
}

.result-icon.ok { color: var(--ok); }
.result-icon.attn { color: var(--warn-text); display: none; }
.is-warn .result-icon.ok { display: none; }
.is-warn .result-icon.attn { display: block; }

.result-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
}

.result .name {
  margin-block-end: 14px;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.925rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 14px 0 18px;
}

.stat {
  padding: 12px 10px;
  text-align: center;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.stat dt {
  font-size: 0.8rem;
  color: var(--muted);
}

.stat dd {
  margin: 2px 0 0;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.5;
}

.stat.after dd {
  color: var(--ok);
}

/* ---------- Messages ---------- */

.box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: 12px;
  text-align: start;
  line-height: 1.8;
  font-size: 0.95rem;
}

.box svg {
  inline-size: 22px;
  block-size: 22px;
  margin-block-start: 3px;
}

.box.warn {
  background: var(--warn-bg);
  border-color: var(--warn-line);
  color: var(--warn-text);
}

.box.err {
  background: var(--err-bg);
  border-color: var(--err-line);
  color: var(--err-text);
}

/* ---------- Buttons ---------- */

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-block-size: 46px;
  padding: 10px 24px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--brand);
  color: var(--on-brand);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s;
}

.btn svg {
  inline-size: 20px;
  block-size: 20px;
}

.btn:hover {
  background: var(--brand-hover);
}

.btn.ghost {
  background: transparent;
  color: var(--brand);
  border-color: var(--line-strong);
}

.btn.ghost:hover {
  background: var(--brand-soft);
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 16px 16px 22px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: inherit;
  text-underline-offset: 3px;
}

.site-footer a:hover {
  color: var(--text);
}

/* ---------- Small screens ---------- */

@media (max-width: 480px) {
  .page {
    width: min(100% - 24px, 560px);
    padding-block: 24px 16px;
    justify-content: flex-start;
  }
  .card { padding: 14px; }
  .drop { padding: 26px 14px 22px; }
  .actions { flex-direction: column; }
  .actions .btn { inline-size: 100%; }
}

@media (max-width: 400px) {
  .stats { grid-template-columns: 1fr; gap: 8px; }
  .stat {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
  }
  .stat dd { margin: 0; }
}

/* Windows high contrast / forced colors */
@media (forced-colors: active) {
  .drop,
  .card,
  .stat,
  .box { border-color: CanvasText; }
  .bar > i { background: Highlight; }
}