*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface2: #f0efe9;
  --border: rgba(0,0,0,0.1);
  --border-med: rgba(0,0,0,0.18);
  --border-strong: rgba(0,0,0,0.3);
  --text: #1a1a18;
  --text2: #6b6b67;
  --text3: #999994;
  --btn-bg: #1a1a18;
  --btn-text: #f7f6f2;
  --btn-hover: #333330;
  --badge-wait-bg: #f0efe9;  --badge-wait-text: #888882;
  --badge-proc-bg: #eaf3de;  --badge-proc-text: #3b6d11;
  --badge-done-bg: #e1f5ee;  --badge-done-text: #0f6e56;
  --badge-err-bg:  #fcebeb;  --badge-err-text:  #a32d2d;
  --link: #185fa5;
  --toggle-bg: #e4e3dd;
  --toggle-knob: #ffffff;
  --progress-track: #e4e3dd;
  --ad-bg: #f2f1ed;
  --ad-border: rgba(0,0,0,0.08);
  --ad-text: #c0bfba;
}

[data-theme="dark"] {
  --bg: #111110;
  --surface: #1c1c1a;
  --surface2: #242422;
  --border: rgba(255,255,255,0.09);
  --border-med: rgba(255,255,255,0.16);
  --border-strong: rgba(255,255,255,0.28);
  --text: #f0ece4;
  --text2: #888880;
  --text3: #555552;
  --btn-bg: #f0ece4;
  --btn-text: #111110;
  --btn-hover: #d8d4cc;
  --badge-wait-bg: #242422;  --badge-wait-text: #666662;
  --badge-proc-bg: #1a2e10;  --badge-proc-text: #7db85a;
  --badge-done-bg: #0d2b22;  --badge-done-text: #3dc49a;
  --badge-err-bg:  #2b1010;  --badge-err-text:  #e07070;
  --link: #85b7eb;
  --toggle-bg: #333330;
  --toggle-knob: #f0ece4;
  --progress-track: #2a2a28;
  --ad-bg: #191918;
  --ad-border: rgba(255,255,255,0.06);
  --ad-text: #333330;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Instrument Sans', sans-serif;
  min-height: 100vh;
  transition: background .2s, color .2s;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1rem 4rem;
}

/* ── Theme toggle ── */
.theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 7px;
  z-index: 100;
  background: var(--surface);
  border: 1px solid var(--border-med);
  border-radius: 20px;
  padding: 5px 10px 5px 8px;
  cursor: pointer;
}
.theme-label { font-size: 11px; color: var(--text2); user-select: none; }
.toggle-track {
  width: 36px; height: 20px; border-radius: 10px;
  background: var(--toggle-bg); border: 1px solid var(--border-med);
  cursor: pointer; position: relative; transition: background .2s; flex-shrink: 0;
}
.toggle-knob {
  position: absolute; top: 3px; left: 3px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--toggle-knob);
  transition: transform .2s; box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
[data-theme="dark"] .toggle-knob { transform: translateX(16px); }

/* ── Outer 3-col layout ── */
.layout {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 24px;
  width: 100%;
  max-width: 1160px;
}

/* ── Ad sidebars ── */
.ad-sidebar {
  width: 160px;
  flex-shrink: 0;
  position: sticky;
  top: 2rem;
}
.ad-slot {
  width: 160px;
  min-height: 600px;
  border: 1px dashed var(--ad-border);
  border-radius: 12px;
  background: var(--ad-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  overflow: hidden;
  transition: background .2s, border-color .2s;
}
.ad-slot-icon { opacity: .28; }
.ad-slot-icon svg { width: 24px; height: 24px; stroke: var(--text); display: block; }
.ad-slot-label {
  font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ad-text); font-weight: 500; text-align: center; line-height: 1.6;
  user-select: none;
}

/* hide ads below 940px */
@media (max-width: 940px) { .ad-sidebar { display: none; } }

/* ── Main content ── */
.page {
  width: 100%;
  max-width: 500px;
  flex-shrink: 0;
  padding-top: 3rem;
}

@media (max-width: 600px) {
  body { padding: 1rem 1rem 3.5rem; }
  .page { padding-top: 3.5rem; }
}

/* eyebrow */
.eyebrow { display: flex; align-items: center; gap: 8px; margin-bottom: 1.25rem; }
.eyebrow-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--text3); flex-shrink: 0; }
.eyebrow-text { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--text2); font-weight: 500; }

/* heading */
h1 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(30px, 6vw, 42px);
  font-weight: 400; line-height: 1.08;
  color: var(--text); margin-bottom: .5rem;
}
h1 em { font-style: italic; color: var(--text2); }
.sub { font-size: 14px; color: var(--text2); margin-bottom: 2rem; line-height: 1.6; }

/* ── Drop zone ── */
.drop-zone {
  border: 1px dashed var(--border-med);
  border-radius: 16px;
  padding: 2.5rem 1.25rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  background: var(--surface);
  -webkit-tap-highlight-color: transparent;
}
.drop-zone:hover, .drop-zone.drag {
  border-color: var(--border-strong);
  background: var(--surface2);
}
.upload-icon-wrap {
  width: 52px; height: 52px; margin: 0 auto 1.1rem;
  border: 1px solid var(--border-med); border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface2);
}
.upload-icon-wrap svg { width: 22px; height: 22px; stroke: var(--text2); }
.drop-title { font-size: 15px; font-weight: 500; color: var(--text); margin-bottom: .35rem; }
.drop-hint { font-size: 13px; color: var(--text2); line-height: 1.5; }
.drop-hint strong {
  color: var(--text); font-weight: 500;
  border-bottom: 1px solid var(--border-strong);
  cursor: pointer; padding-bottom: 1px;
}
.drop-hint .desktop-txt { display: inline; }
.drop-hint .mobile-txt  { display: none; }
@media (hover: none) and (pointer: coarse) {
  .drop-hint .desktop-txt { display: none; }
  .drop-hint .mobile-txt  { display: inline; }
}

.drop-formats { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px; margin-top: .9rem; }
.pill {
  font-size: 11px; padding: 3px 10px; border-radius: 20px;
  border: 1px solid var(--border); color: var(--text3);
  background: var(--surface2); letter-spacing: .04em;
}

/* ── Format cards ── */
.section-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: .12em;
  color: var(--text2); font-weight: 500; margin: 1.6rem 0 .65rem;
}
.fmt-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.fmt-card {
  border: 1px solid var(--border); border-radius: 12px;
  padding: .85rem 1rem; cursor: pointer;
  transition: border-color .15s, background .15s;
  background: var(--surface2); user-select: none;
  -webkit-tap-highlight-color: transparent;
  min-min-height: 50px;
}
.fmt-card:hover { border-color: var(--border-med); }
.fmt-card.active { border-color: var(--border-strong); background: var(--surface); }
.fmt-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: .25rem; }
.fmt-name { font-size: 14px; font-weight: 500; color: var(--text); }
.fmt-check {
  width: 18px; height: 18px; border-radius: 50%;
  border: 1px solid var(--border-med);
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, border-color .15s; flex-shrink: 0;
}
.fmt-card.active .fmt-check { background: var(--btn-bg); border-color: var(--btn-bg); }
.fmt-check-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--btn-text); display: none; }
.fmt-card.active .fmt-check-dot { display: block; }
.fmt-desc { font-size: 12px; color: var(--text2); line-height: 1.4; }

/* ── Progress ── */
.prog-wrap { margin-top: 1.25rem; display: none; }
.prog-wrap.show { display: block; }
.prog-label { font-size: 12px; color: var(--text2); margin-bottom: .4rem; }
.prog-track { height: 2px; background: var(--progress-track); border-radius: 2px; overflow: hidden; }
.prog-fill { height: 100%; background: var(--text); transition: width .25s; border-radius: 2px; }

/* ── File queue ── */
.queue { display: flex; flex-direction: column; gap: 8px; margin-top: 1.4rem; }
.item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: .75rem .9rem;
  display: flex; align-items: center; gap: 10px;
}
.item-thumb {
  width: 36px; height: 36px; border-radius: 6px;
  object-fit: cover; border: 1px solid var(--border); flex-shrink: 0;
}
.item-ph {
  width: 36px; height: 36px; border-radius: 6px;
  background: var(--surface2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 8px; font-weight: 500; color: var(--text2);
  letter-spacing: .05em; flex-shrink: 0;
}
.item-info { flex: 1; min-width: 0; }
.item-name {
  font-size: 13px; font-weight: 500; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.item-meta { font-size: 11px; color: var(--text2); margin-top: 2px; }
.item-right { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; flex-shrink: 0; }

/* ── Badges ── */
.badge { font-size: 11px; padding: 3px 9px; border-radius: 20px; font-weight: 500; white-space: nowrap; }
.badge-wait { background: var(--badge-wait-bg); color: var(--badge-wait-text); }
.badge-proc { background: var(--badge-proc-bg); color: var(--badge-proc-text); }
.badge-done { background: var(--badge-done-bg); color: var(--badge-done-text); }
.badge-err  { background: var(--badge-err-bg);  color: var(--badge-err-text); }

.dl-link {
  font-size: 12px; color: var(--link); text-decoration: none;
  font-weight: 500; border-bottom: 1px solid; padding-bottom: 1px;
}
.dl-link:hover { opacity: .75; }

/* ── CTA buttons ── */
.cta-row { display: flex; gap: 8px; margin-top: 1.6rem; }
.btn-main {
  flex: 1; padding: .9rem 1.5rem;
  background: var(--btn-bg); color: var(--btn-text);
  border: none; border-radius: 10px;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 15px; font-weight: 500; cursor: pointer;
  transition: background .15s, transform .1s, opacity .15s;
  letter-spacing: .01em;
  min-height: 52px;
  -webkit-tap-highlight-color: transparent;
}
.btn-main:hover:not(:disabled) { background: var(--btn-hover); }
.btn-main:active:not(:disabled) { transform: scale(.99); }
.btn-main:disabled { opacity: .28; cursor: not-allowed; }

.btn-ghost {
  padding: .9rem 1.2rem; background: transparent;
  color: var(--text2); border: 1px solid var(--border-med);
  border-radius: 10px; font-family: 'Instrument Sans', sans-serif;
  font-size: 14px; font-weight: 400; cursor: pointer;
  transition: border-color .15s, color .15s;
  min-height: 52px;
  -webkit-tap-highlight-color: transparent;
}
.btn-ghost:hover { border-color: var(--border-strong); color: var(--text); }

/* ── Privacy note ── */
.privacy-note {
  font-size: 12px; color: var(--text3);
  text-align: center; margin-top: 1.4rem;
  display: flex; align-items: center; justify-content: center;
  gap: 5px; flex-wrap: wrap; line-height: 1.7;
}
.privacy-note svg { width: 12px; height: 12px; stroke: var(--text3); flex-shrink: 0; }

.info-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; border-radius: 50%;
  border: 1px solid var(--border-med); background: transparent;
  color: var(--text3); font-size: 10px; font-weight: 500;
  font-family: 'Instrument Sans', sans-serif; cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
  line-height: 1; flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}
.info-btn:hover { border-color: var(--border-strong); color: var(--text2); background: var(--surface2); }

/* ── Modal ── */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.5); z-index: 200;
  align-items: center; justify-content: center;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface); border: 1px solid var(--border-med);
  border-radius: 20px; padding: 1.75rem;
  max-width: 420px; width: 100%;
  position: relative;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--surface2);
  color: var(--text2); font-size: 16px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, border-color .15s;
  -webkit-tap-highlight-color: transparent;
}
.modal-close:hover { border-color: var(--border-med); color: var(--text); }
.modal-icon {
  width: 42px; height: 42px; border-radius: 11px;
  border: 1px solid var(--border-med); background: var(--surface2);
  display: flex; align-items: center; justify-content: center; margin-bottom: 1.1rem;
}
.modal-icon svg { width: 18px; height: 18px; stroke: var(--text2); }
.modal h2 {
  font-family: 'Instrument Serif', serif; font-size: 20px; font-weight: 400;
  color: var(--text); margin-bottom: .4rem; line-height: 1.2;
}
.modal-steps { margin-top: 1.1rem; display: flex; flex-direction: column; gap: 12px; }
.modal-step { display: flex; gap: 12px; align-items: flex-start; }
.step-num {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--surface2); border: 1px solid var(--border);
  font-size: 11px; font-weight: 500; color: var(--text2);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 1px;
}
.step-text { font-size: 13px; color: var(--text2); line-height: 1.55; }
.step-text strong { color: var(--text); font-weight: 500; }
.modal-divider { height: 1px; background: var(--border); margin: 1.1rem 0; }
.modal-footer { font-size: 12px; color: var(--text3); line-height: 1.6; display: flex; gap: 8px; align-items: flex-start; }
.modal-footer svg { width: 13px; height: 13px; stroke: var(--text3); flex-shrink: 0; margin-top: 2px; }

/* ── Mobile-specific tweaks ── */
@media (max-width: 480px) {
  h1 { font-size: 28px; }
  .sub { font-size: 13px; margin-bottom: 1.5rem; }
  .drop-zone { padding: 2rem 1rem; }
  .upload-icon-wrap { width: 44px; height: 44px; border-radius: 11px; margin-bottom: .9rem; }
  .upload-icon-wrap svg { width: 18px; height: 18px; }
  .drop-title { font-size: 14px; }
  .section-label { margin-top: 1.4rem; }
  .fmt-card { padding: .75rem .85rem; }
  .fmt-desc { font-size: 11px; }
  .cta-row { flex-direction: column; }
  .btn-ghost { order: 2; }
  .btn-main { order: 1; }
  .item { padding: .65rem .75rem; }
  .item-name { font-size: 12px; }
  .modal { border-radius: 16px; padding: 1.4rem; }
}

/* ── Footer ── */
.site-footer {
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  width: 100%;
  max-width: 500px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.footer-text {
  font-size: 11px;
  color: var(--text3);
  letter-spacing: .04em;
}
.footer-links {
  display: flex;
  gap: 14px;
}
.footer-links a {
  font-size: 12px;
  color: var(--text2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color .15s, border-color .15s;
}
.footer-links a:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

/* ── Horizontal banner ad (tablets & mobile only) ── */
.ad-banner-wrap {
  display: none;
  width: 100%;
  margin: 1.6rem 0 0;
}

/* Always show banner ads */
.ad-banner-wrap { display: block; }

.ad-banner-slot {
  width: 100%;
  min-height: 50px;
  border: 1px dashed var(--ad-border);
  border-radius: 10px;
  background: var(--ad-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  overflow: hidden;
  transition: background .2s, border-color .2s;
}

/* Slightly shorter on small phones */
@media (max-width: 480px) {
  .ad-banner-slot { min-height: 50px; }
}

.ad-banner-icon {
  opacity: .28;
  flex-shrink: 0;
}
.ad-banner-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--text);
  display: block;
}
.ad-banner-label {
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ad-text);
  font-weight: 500;
  user-select: none;
}

/* ── Content section (SEO / AdSense compliance) ── */
.content-section {
  margin-top: 2.5rem;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.content-block h2 {
  font-family: 'Instrument Serif', serif;
  font-size: 20px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: .6rem;
  line-height: 1.2;
}

.content-block p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.75;
}

.content-block strong {
  color: var(--text);
  font-weight: 500;
}

.faq-item {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.faq-item:first-of-type {
  margin-top: .5rem;
}

.faq-q {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: .35rem;
}

.faq-a {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
}

.ad-banner-slot { width:100%; min-height:50px; display:block; overflow:hidden; border:none; background:transparent; }