.page { max-width: 1180px; margin: 0 auto; padding: 32px 20px 72px; }

/* ---------- Hero ---------- */
.brand { display: inline-block; font-weight: 600; font-size: 14px; color: var(--muted); text-decoration: none; margin-bottom: 32px; }
.brand:hover { color: var(--ink); }
.hero h1 {
  margin: 0; max-width: 16em;
  font-size: clamp(32px, 5.4vw, 60px); line-height: 1.02;
  font-weight: 800; letter-spacing: -.035em;
  font-variation-settings: "opsz" 96;
}
.lead { margin: 16px 0 0; max-width: 34em; font-size: 17px; color: var(--muted); }

.demo {
  display: flex; align-items: center; flex-wrap: wrap; gap: 14px;
  margin-top: 32px;
  font: 500 clamp(15px, 2.4vw, 22px)/1.2 var(--font-file);
}
.demo-old { color: var(--muted); text-decoration: line-through; text-decoration-thickness: 2px; }
.demo-arrow { width: 56px; height: 2px; background: var(--ink); position: relative; }
.demo-arrow::after {
  content: ""; position: absolute; right: 0; top: -4px;
  width: 8px; height: 8px; border: solid var(--ink); border-width: 2px 2px 0 0; transform: rotate(45deg);
}
mark { background: var(--mark); color: var(--mark-ink); border-radius: 2px; padding: 0 1px; }

/* Tek seferlik açılış: eski ad çizilir, ok uzar, yeni ad belirir */
@media (prefers-reduced-motion: no-preference) {
  .demo-old { animation: strike .5s .3s both; background: linear-gradient(currentColor, currentColor) 0 55% / 0 2px no-repeat; text-decoration: none; }
  .demo-arrow { transform-origin: left; animation: grow .4s .8s both; }
  .demo-new { animation: reveal .5s 1.1s both; }
}
@keyframes strike { to { background-size: 100% 2px; } }
@keyframes grow { from { transform: scaleX(0); } }
@keyframes reveal { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }

/* ---------- Workspace ---------- */
.workspace { margin-top: 44px; display: grid; gap: 24px; grid-template-columns: minmax(0, 1fr); }
.workspace.has-files { grid-template-columns: 320px minmax(0, 1fr); align-items: start; }
body:has(.workspace.has-files) .hero .demo { display: none; }
body:has(.workspace.has-files) .hero h1 { font-size: clamp(24px, 3vw, 32px); }
body:has(.workspace.has-files) .lead { display: none; }
body:has(.workspace.has-files) .brand { margin-bottom: 12px; }

@media (max-width: 860px) {
  .workspace.has-files { grid-template-columns: minmax(0, 1fr); }
  .workspace.has-files .main { order: -1; }
}

/* ---------- Kurallar paneli ---------- */
.rules-panel {
  position: sticky; top: 16px;
  max-height: calc(100vh - 32px); overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 6px 18px 10px;
}
@media (max-width: 860px) { .rules-panel { position: static; max-height: none; } }
.rules-panel h2 { margin: 14px 0 6px; font-size: 20px; letter-spacing: -.02em; }
details { border-top: 1px solid var(--line); }
details:first-of-type { border-top: 0; }
summary {
  cursor: pointer; list-style: none; padding: 12px 0; font-weight: 600;
  display: flex; align-items: center; justify-content: space-between;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: ""; width: 7px; height: 7px; margin-right: 3px;
  border: solid var(--muted); border-width: 0 2px 2px 0; transform: rotate(45deg); transition: transform .15s;
}
details[open] > summary::after { transform: rotate(-135deg); }
.group { display: grid; gap: 12px; padding: 0 0 16px; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.group label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; font-weight: 500; }
.group small { color: var(--muted); font-weight: 400; font-size: 12.5px; }
.group label.check { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
.group input[type="checkbox"], .unzip input { width: 16px; height: 16px; margin: 0; accent-color: var(--signal); flex: none; }
.group input:not([type="checkbox"]), .group select {
  width: 100%; padding: 8px 10px; font: 400 14px var(--font-ui); color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 6px;
}
.group input:not([type="checkbox"]):focus, .group select:focus { outline: 2px solid var(--signal); outline-offset: -1px; border-color: transparent; }
#numBase, #findText, #replaceText, #prefix, #suffix, #extFrom, #extTo, #numSep { font-family: var(--font-file); font-size: 13.5px; }

/* ---------- Dosya bırakma alanı ---------- */
.dropzone {
  display: flex; align-items: center; gap: 20px;
  padding: 44px 32px;
  background: var(--surface);
  border: 2px dashed var(--line);
  border-radius: 22px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.dz-icon { width: 52px; height: 52px; flex: none; color: var(--signal); }
.dz-text { display: flex; flex-direction: column; }
.dz-text strong { font-size: 24px; letter-spacing: -.02em; line-height: 1.2; }
.dz-text span { color: var(--muted); }
.dropzone:hover, .dropzone.dragover { border-color: var(--signal); border-style: solid; }
.dropzone.dragover { background: color-mix(in srgb, var(--signal) 8%, var(--surface)); }

.has-files .dropzone { padding: 16px 20px; border-radius: 12px; }
.has-files .dz-icon { width: 30px; height: 30px; }
.has-files .dz-text { flex-direction: row; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.has-files .dz-text strong { font-size: 16px; }

.unzip { display: flex; align-items: center; gap: 8px; margin-top: 12px; color: var(--muted); font-size: 14px; }
.load-msg { margin: 6px 0 0; min-height: 1.4em; font-size: 14px; color: var(--muted); }
.load-msg.error { color: var(--danger); }

/* ---------- Liste ---------- */
.list { margin-top: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; overflow: clip; }
.list-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 12px 16px; }
.list-head h2 { margin: 0; font-size: 20px; letter-spacing: -.02em; display: flex; align-items: center; gap: 8px; }
.badge { font: 600 13px var(--font-ui); padding: 1px 9px; border-radius: 99px; background: var(--ink); color: var(--paper); }
.head-actions { display: flex; gap: 2px; flex-wrap: wrap; }
.btn-ghost { border: 0; background: none; color: var(--muted); font: 500 14px var(--font-ui); cursor: pointer; padding: 5px 10px; border-radius: 6px; }
.btn-ghost:hover { color: var(--ink); background: var(--paper); }
#clearBtn:hover { color: var(--danger); }
.hint { margin: 0; padding: 0 16px 12px; font-size: 13.5px; color: var(--muted); max-width: 60em; }

.table-wrap { overflow-x: auto; border-top: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 14px; text-align: left; white-space: nowrap; }
th { font-size: 13px; font-weight: 600; color: var(--muted); background: var(--paper); }
tbody tr + tr td { border-top: 1px solid var(--line); }
td.num, td.size { color: var(--muted); font-size: 13px; }
td.num { cursor: grab; width: 1%; }
td.name, td.new { font: 400 13.5px var(--font-file); max-width: 300px; overflow: hidden; text-overflow: ellipsis; }
td.name { color: var(--muted); }
td.new.same { color: var(--muted); }
td.new.err { color: var(--danger); }
td.new.err small { font: 500 12.5px var(--font-ui); }
.dir { color: var(--muted); }
tr.dragging { opacity: .4; }
tr.drop-before td { box-shadow: inset 0 2px 0 var(--signal); }
tr.drop-after td { box-shadow: inset 0 -2px 0 var(--signal); }
.remove { border: 0; background: none; color: var(--muted); cursor: pointer; font-size: 18px; line-height: 1; padding: 2px 8px; border-radius: 6px; }
.remove:hover { color: var(--danger); background: var(--paper); }

.actions {
  position: sticky; bottom: 0;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 14px 16px; background: var(--surface); border-top: 1px solid var(--line);
}
.status { color: var(--muted); font-size: 14px; }
.status.error { color: var(--danger); }
.btn-primary {
  border: 0; border-radius: 10px; padding: 11px 22px;
  background: var(--signal); color: var(--signal-ink); font: 700 15px var(--font-ui); cursor: pointer;
}
.btn-primary:hover:not(:disabled) { filter: brightness(1.1); }
.btn-primary:disabled { opacity: .4; cursor: not-allowed; }

@media (max-width: 560px) {
  .dropzone { padding: 28px 18px; flex-direction: column; text-align: center; }
  .dz-text strong { font-size: 20px; }
  .btn-primary { width: 100%; }
}

/* Aramaya yönelik içerik: nasıl kullanılır, SSS, ilgili araçlar */
.seo { max-width: 46em; margin-top: 56px; }
.seo h2 { margin: 32px 0 10px; font-size: 20px; letter-spacing: -.01em; }
.seo ol { margin: 0; padding-left: 22px; color: var(--muted); }
.seo ol li { margin: 6px 0; padding-left: 4px; }
.faq { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); padding: 0 18px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:first-child { border-top: 0; }
.faq summary { padding: 14px 0; }
.faq p { margin: 0 0 16px; color: var(--muted); }
.related { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.related a {
  display: inline-block; padding: 6px 14px; border: 1px solid var(--line); border-radius: 99px;
  background: var(--surface); text-decoration: none; font-size: 14px; font-weight: 500;
}
.related a:hover { border-color: var(--signal); }