:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f1f2f8;
  --border: #e3e5ef;
  --text: #171a2b;
  --muted: #646a82;
  --primary: #4f46e5;
  --primary-ink: #ffffff;
  --primary-soft: #eceafe;
  --ok: #0f9d58;
  --ok-soft: #e3f6ec;
  --warn: #b26a00;
  --warn-soft: #fff3dc;
  --err: #d33a3a;
  --err-soft: #fde8e8;
  --shadow: 0 1px 2px rgba(20, 22, 50, .06), 0 6px 24px rgba(20, 22, 50, .06);
  --radius: 14px;
  --font: 'IBM Plex Sans Arabic', 'Segoe UI', Tahoma, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1120; --surface: #171a2e; --surface-2: #1f2338; --border: #2b3050;
    --text: #eceefa; --muted: #9aa0bd; --primary: #8b84ff; --primary-ink: #0f1120;
    --primary-soft: #262457; --ok: #46c983; --ok-soft: #133526; --warn: #f0b04a; --warn-soft: #3a2b10;
    --err: #ff7b7b; --err-soft: #3d1a1d; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 24px rgba(0,0,0,.25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1120; --surface: #171a2e; --surface-2: #1f2338; --border: #2b3050;
  --text: #eceefa; --muted: #9aa0bd; --primary: #8b84ff; --primary-ink: #0f1120;
  --primary-soft: #262457; --ok: #46c983; --ok-soft: #133526; --warn: #f0b04a; --warn-soft: #3a2b10;
  --err: #ff7b7b; --err-soft: #3d1a1d; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 24px rgba(0,0,0,.25);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text); font-family: var(--font);
  font-size: 16px; line-height: 1.65;
}
a { color: var(--primary); text-decoration: none; }
h1, h2, h3 { line-height: 1.35; margin: 0 0 .4em; }
h1 { font-size: 1.7rem; } h2 { font-size: 1.3rem; } h3 { font-size: 1.08rem; }
p { margin: 0 0 .8em; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.container { max-width: 980px; margin: 0 auto; padding: 20px 16px 80px; }
[hidden] { display: none !important; }

/* top bar */
.topbar {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--text); white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: var(--primary); color: var(--primary-ink); }
.nav { display: flex; gap: 4px; margin-inline-start: auto; overflow-x: auto; }
.nav a { padding: 7px 12px; border-radius: 10px; color: var(--muted); font-weight: 500; white-space: nowrap; }
.nav a.active, .nav a:hover { background: var(--primary-soft); color: var(--primary); }
.icon-btn { border: 0; background: transparent; color: var(--muted); width: 38px; height: 38px; border-radius: 10px; cursor: pointer; display: grid; place-items: center; }
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
@media (max-width: 560px) { .brand { font-size: 0; gap: 0; } .nav a { padding: 7px 9px; font-size: .92rem; } }

#banner:empty { display: none; }
#banner { background: var(--warn-soft); color: var(--warn); padding: 10px 16px; text-align: center; font-weight: 500; }

/* cards & layout */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; }
.card + .card, .stack > * + * { margin-top: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 720px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* hero */
.hero { text-align: center; padding: 34px 8px 22px; }
.hero h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); }
.hero p { color: var(--muted); max-width: 560px; margin: 0 auto; }
.choice { display: flex; gap: 14px; align-items: flex-start; padding: 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); color: var(--text); transition: transform .15s, border-color .15s; }
.choice:hover { transform: translateY(-2px); border-color: var(--primary); }
.choice .ico { flex: none; width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.choice h3 { margin-bottom: 2px; }
.choice p { margin: 0; color: var(--muted); font-size: .93rem; }

/* forms */
label.field { display: block; }
label.field > span, .label { display: block; font-weight: 600; font-size: .93rem; margin-bottom: 6px; }
.hint { color: var(--muted); font-size: .84rem; margin-top: 4px; }
input[type=text], input[type=number], input[type=date], textarea, select {
  width: 100%; font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 12px; outline: none; transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; min-height: 90px; line-height: 1.7; }
input:focus, textarea:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.fields { display: grid; gap: 14px; }

.seg { display: inline-flex; background: var(--surface-2); border-radius: 11px; padding: 3px; gap: 2px; flex-wrap: wrap; }
.seg button { border: 0; background: transparent; font: inherit; color: var(--muted); padding: 7px 14px; border-radius: 9px; cursor: pointer; font-weight: 500; }
.seg button.on { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

.stepper { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.stepper button { width: 40px; height: 40px; border: 0; background: var(--surface-2); color: var(--text); font-size: 1.2rem; cursor: pointer; }
.stepper output { min-width: 48px; text-align: center; font-weight: 700; }

.switch { display: flex; gap: 12px; align-items: flex-start; padding: 14px; border: 1px solid var(--border); border-radius: 12px; cursor: pointer; }
.switch input { appearance: none; flex: none; width: 42px; height: 24px; border-radius: 99px; background: var(--border); position: relative; cursor: pointer; transition: background .15s; margin: 2px 0 0; }
.switch input::after { content: ''; position: absolute; top: 3px; inset-inline-start: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: inset-inline-start .15s; }
.switch input:checked { background: var(--primary); }
.switch input:checked::after { inset-inline-start: 21px; }
.switch b { display: block; }

.drop { border: 2px dashed var(--border); border-radius: 12px; padding: 16px; text-align: center; color: var(--muted); cursor: pointer; display: block; }
.drop:hover { border-color: var(--primary); color: var(--primary); }
.drop input { display: none; }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; margin-top: 10px; }
.thumb { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--surface-2); position: relative; }
.thumb img { width: 100%; height: 100px; object-fit: cover; display: block; }
.thumb input { border: 0; border-top: 1px solid var(--border); border-radius: 0; font-size: .82rem; padding: 6px 8px; }
.thumb .x { position: absolute; top: 4px; inset-inline-end: 4px; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: inherit; font-weight: 600; border-radius: 11px; padding: 10px 18px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; text-align: center; transition: filter .15s, background .15s; }
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--err); }
.btn.sm { padding: 6px 12px; font-size: .88rem; border-radius: 9px; }
.btn.big { padding: 14px 26px; font-size: 1.05rem; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.x { width: 26px; height: 26px; border-radius: 50%; border: 0; background: rgba(0,0,0,.55); color: #fff; cursor: pointer; line-height: 1; }

/* wizard */
.steps { display: flex; gap: 6px; margin-bottom: 18px; overflow-x: auto; }
.steps button { flex: 1; min-width: 92px; border: 0; background: transparent; font: inherit; color: var(--muted); padding: 8px 4px 10px; border-bottom: 3px solid var(--border); cursor: pointer; font-weight: 500; white-space: nowrap; }
.steps button.on { color: var(--primary); border-color: var(--primary); }
.steps button.done { color: var(--text); border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); }
.wizard-nav { display: flex; gap: 10px; margin-top: 20px; }

/* templates */
.tpls { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 12px; }
.tpl { border: 2px solid var(--border); border-radius: 12px; overflow: hidden; cursor: pointer; background: var(--surface); padding: 0; font: inherit; color: var(--text); text-align: start; }
.tpl img { display: block; width: 100%; aspect-ratio: 2.07 / 1.42; object-fit: cover; background: var(--surface-2); }
.tpl div { padding: 8px 10px; display: flex; align-items: center; gap: 8px; font-weight: 600; }
.tpl .dots { display: flex; gap: 3px; margin-inline-start: auto; }
.tpl .dots i { width: 12px; height: 12px; border-radius: 50%; display: block; }
.tpl.on { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }

/* progress */
.progress { text-align: center; padding: 34px 18px; }
.spinner { width: 54px; height: 54px; border-radius: 50%; border: 5px solid var(--primary-soft); border-top-color: var(--primary); animation: spin 1s linear infinite; margin: 0 auto 18px; }
@keyframes spin { to { transform: rotate(360deg); } }
.bar { height: 10px; background: var(--surface-2); border-radius: 99px; overflow: hidden; margin: 16px auto 8px; max-width: 460px; }
.bar i { display: block; height: 100%; background: var(--primary); border-radius: 99px; transition: width .6s; }

/* badges */
.badge { display: inline-block; font-size: .78rem; font-weight: 600; padding: 2px 10px; border-radius: 99px; background: var(--surface-2); color: var(--muted); white-space: nowrap; }
.badge.done { background: var(--ok-soft); color: var(--ok); }
.badge.running, .badge.queued { background: var(--primary-soft); color: var(--primary); }
.badge.error, .badge.interrupted { background: var(--err-soft); color: var(--err); }
.alert { padding: 12px 14px; border-radius: 12px; background: var(--warn-soft); color: var(--warn); }
.alert.err { background: var(--err-soft); color: var(--err); }
.alert.ok { background: var(--ok-soft); color: var(--ok); }

/* files list */
.files { list-style: none; margin: 0; padding: 0; }
.files li { display: flex; align-items: center; gap: 12px; padding: 12px 4px; border-bottom: 1px solid var(--border); }
.files li:last-child { border-bottom: 0; }
.files .kind { flex: none; width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.files .kind.slides { background: var(--warn-soft); color: var(--warn); }
.files .meta { flex: 1; min-width: 0; }
.files .meta a { color: var(--text); font-weight: 600; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.empty { text-align: center; color: var(--muted); padding: 30px 10px; }

/* editor */
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; position: sticky; top: 58px; z-index: 10; background: var(--bg); padding: 10px 0; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin: 8px 0 16px; overflow-x: auto; }
.tabs button { border: 0; background: transparent; font: inherit; padding: 9px 14px; color: var(--muted); border-bottom: 2px solid transparent; cursor: pointer; font-weight: 600; white-space: nowrap; }
.tabs button.on { color: var(--primary); border-color: var(--primary); }
.section { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.section + .section { margin-top: 12px; }
.section-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.section-head h3 { margin: 0; font-size: 1rem; color: var(--muted); }
.section textarea { min-height: 140px; }
.section .qtitle { font-weight: 700; margin-bottom: 8px; }
.dirty-note { color: var(--warn); font-weight: 600; font-size: .9rem; }
.pages { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.pages img { width: 100%; border-radius: 6px; border: 1px solid var(--border); box-shadow: var(--shadow); background: #fff; }
.sources { margin: 0; padding-inline-start: 20px; font-size: .9rem; }

/* dialog */
dialog { border: 0; border-radius: var(--radius); padding: 0; background: var(--surface); color: var(--text); width: min(560px, calc(100vw - 32px)); box-shadow: 0 20px 60px rgba(0,0,0,.3); }
dialog::backdrop { background: rgba(10, 12, 30, .5); }
dialog form { padding: 20px; }
dialog h3 { margin-bottom: 12px; }

/* toast */
#toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(120px); background: var(--text); color: var(--bg); padding: 11px 18px; border-radius: 12px; font-weight: 500; transition: transform .25s; z-index: 50; max-width: calc(100vw - 32px); text-align: center; }
#toast.show { transform: translateX(-50%) translateY(0); }
#toast.err { background: var(--err); color: #fff; }

.slide-card .points { display: grid; gap: 8px; margin-top: 8px; }
.slide-card .point { display: grid; grid-template-columns: 1fr 2fr auto; gap: 8px; }
@media (max-width: 640px) { .slide-card .point { grid-template-columns: 1fr; } }

.upload-tpl { border: 1px dashed var(--primary); background: var(--primary-soft); border-radius: 12px; padding: 14px; margin-bottom: 16px; }
.upload-tpl .hint { display: block; }
.tpl { display: block; }
.tpl .btn.sm { margin-inline-start: auto; padding: 3px 9px; }
.tpl .noprev { aspect-ratio: 2.07 / 1.42; display: grid; place-items: center; color: var(--muted); background: var(--surface-2); font-size: .85rem; }

/* saved subjects */
.subjects { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin-top: 10px; }
.subject { display: block; border: 2px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--surface); color: var(--text); padding: 0; font: inherit; cursor: pointer; text-align: start; }
.subject img, .subject .noprev { display: block; width: 100%; height: 92px; object-fit: cover; object-position: top; background: var(--surface-2); }
.subject b { display: block; padding: 7px 10px; font-size: .92rem; }
.subject:hover, .subject.on { border-color: var(--primary); }
.sub-thumb { width: 64px; height: 44px; object-fit: cover; object-position: top; border-radius: 6px; border: 1px solid var(--border); flex: none; }

/* section list in the wizard */
.sec-row { border: 1px solid var(--border); border-radius: 12px; padding: 10px; display: grid; gap: 8px; background: var(--surface); }
.sec-row + .sec-row { margin-top: 8px; }
.sec-row.off { opacity: .55; }
.sec-row input[data-k="instruction"] { font-size: .9rem; padding: 7px 10px; }
.sec-n { width: 26px; height: 26px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-weight: 700; font-size: .85rem; flex: none; }
.icon-btn.danger { color: var(--err); }

/* editor */
.section-head .sec-title { font-weight: 700; flex: 1; min-width: 120px; }
.section textarea + * { margin-top: 8px; }
.qa { border-top: 1px dashed var(--border); padding-top: 10px; margin-top: 10px; display: grid; gap: 6px; }
.qa [data-q] { font-weight: 700; }
.tbl-ed { overflow-x: auto; margin-top: 8px; }
.tbl-ed table { border-collapse: collapse; min-width: 100%; }
.tbl-ed th, .tbl-ed td { border: 1px solid var(--border); padding: 0; }
.tbl-ed th { background: var(--primary-soft); }
.tbl-ed input { border: 0; border-radius: 0; padding: 7px 8px; min-width: 90px; background: transparent; }
.tbl-ed th input { font-weight: 700; }
.pages.single { grid-template-columns: minmax(0, 640px); justify-content: center; }
dialog .fields { display: grid; gap: 10px; }