/* FCC School Form Scanner — full-viewport multi-page capture overlay.
   Mobile-first; sits ABOVE the Smart School Form Studio modal (z 9999/10001).
   Visual language matches the wizard (sfs-* tokens reused where available). */

.sfscan-overlay {
  --sfscan-purple: var(--sfs-purple, #7c5cff);
  --sfscan-purple-deep: var(--sfs-purple-deep, #5b3df5);
  --sfscan-ink: var(--sfs-ink, #1e1b3a);
  --sfscan-ink-soft: var(--sfs-ink-soft, #5a5780);
  --sfscan-muted: var(--sfs-muted, #7c799c);
  --sfscan-border: var(--sfs-border, #e7e2f7);
  --sfscan-ok: var(--sfs-ok, #16a34a);
  --sfscan-warn: var(--sfs-warn, #d98a16);
  --sfscan-danger: var(--sfs-danger, #e1463c);
  --sfscan-surface: #ffffff;
  --sfscan-bg: #f5f3fc;
  position: fixed;
  inset: 0;
  z-index: 10100;
  background: var(--sfscan-bg);
  color: var(--sfscan-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.sfscan-open { overflow: hidden; }

.sfscan-hidden-input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

.sfscan-shell {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 720px;
  margin: 0 auto;
  background: var(--sfscan-bg);
}

/* ---------- Topbar ---------- */
.sfscan-topbar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: max(12px, env(safe-area-inset-top)) 14px 12px;
  background: var(--sfscan-surface);
  border-bottom: 1px solid var(--sfscan-border);
}
.sfscan-tb-title { font-size: 17px; font-weight: 700; letter-spacing: -0.01em; text-align: center; flex: 1; }
.sfscan-tb-btn {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--sfscan-border); background: #fff;
  font-size: 18px; line-height: 1; color: var(--sfscan-ink-soft);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
}
.sfscan-tb-link { background: none; border: none; color: var(--sfscan-purple-deep); font-size: 15px; font-weight: 600; cursor: pointer; padding: 8px; }
.sfscan-tb-spacer { width: 38px; }
.sfscan-tb-count {
  min-width: 30px; height: 30px; padding: 0 9px; border-radius: 15px;
  background: var(--sfscan-purple); color: #fff; font-weight: 700; font-size: 14px;
  display: inline-flex; align-items: center; justify-content: center;
}

/* ---------- Capture launcher ---------- */
.sfscan-capture {
  flex: 1 1 auto;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px; padding: 24px;
  background: linear-gradient(180deg, #1c1830 0%, #0f0d1c 100%);
  color: #fff;
}
.sfscan-capture-frame {
  position: relative;
  width: min(80vw, 320px); aspect-ratio: 3 / 4;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  display: flex; align-items: center; justify-content: center;
}
.sfscan-frame-corner { position: absolute; width: 30px; height: 30px; border: 3px solid rgba(255,255,255,0.85); }
.sfscan-frame-corner.tl { top: 10px; left: 10px; border-right: 0; border-bottom: 0; border-radius: 10px 0 0 0; }
.sfscan-frame-corner.tr { top: 10px; right: 10px; border-left: 0; border-bottom: 0; border-radius: 0 10px 0 0; }
.sfscan-frame-corner.bl { bottom: 10px; left: 10px; border-right: 0; border-top: 0; border-radius: 0 0 0 10px; }
.sfscan-frame-corner.br { bottom: 10px; right: 10px; border-left: 0; border-top: 0; border-radius: 0 0 10px 0; }
.sfscan-capture-doc { font-size: 64px; opacity: 0.5; }
.sfscan-capture-hint { max-width: 320px; text-align: center; color: rgba(255,255,255,0.82); font-size: 15px; line-height: 1.4; margin: 0; }
.sfscan-capture-count { color: rgba(255,255,255,0.65); font-size: 13px; margin: 0; }
.sfscan-shutter {
  width: 76px; height: 76px; border-radius: 50%;
  border: 4px solid rgba(255,255,255,0.9); background: transparent;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  margin-top: 6px;
}
.sfscan-shutter-ring { width: 58px; height: 58px; border-radius: 50%; background: #fff; }
.sfscan-shutter:active .sfscan-shutter-ring { transform: scale(0.92); }

/* ---------- Review & crop ---------- */
.sfscan-review {
  flex: 1 1 auto;
  display: flex; flex-direction: column; gap: 12px;
  padding: 14px; overflow: hidden;
}
.sfscan-warn {
  background: #fff7ec; border: 1px solid #f3d6a0; color: #8a5a12;
  border-radius: 12px; padding: 10px 12px; font-size: 13px; line-height: 1.35;
}
.sfscan-crop-stage {
  flex: 1 1 auto;
  display: flex; align-items: center; justify-content: center;
  background: #15121f; border-radius: 16px; overflow: hidden; min-height: 0;
  padding: 10px;
}
.sfscan-crop-wrap { position: relative; display: inline-block; max-width: 100%; max-height: 100%; line-height: 0; }
.sfscan-crop-img { display: block; max-width: 100%; max-height: 62vh; -webkit-user-select: none; user-select: none; }
.sfscan-crop-box {
  position: absolute;
  border: 2px solid var(--sfscan-purple);
  box-shadow: 0 0 0 9999px rgba(10,8,20,0.45);
  cursor: move; touch-action: none;
}
.sfscan-handle {
  position: absolute; width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--sfscan-purple); touch-action: none;
}
.sfscan-handle.nw { top: -11px; left: -11px; cursor: nwse-resize; }
.sfscan-handle.ne { top: -11px; right: -11px; cursor: nesw-resize; }
.sfscan-handle.sw { bottom: -11px; left: -11px; cursor: nesw-resize; }
.sfscan-handle.se { bottom: -11px; right: -11px; cursor: nwse-resize; }
.sfscan-tools { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.sfscan-tool {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 10px 2px; border-radius: 12px; border: 1px solid var(--sfscan-border);
  background: #fff; color: var(--sfscan-ink-soft); font-size: 11px; font-weight: 600; cursor: pointer;
  text-align: center;
}
.sfscan-tool-ico { font-size: 18px; line-height: 1; }
.sfscan-tool:active { background: #f2eefc; }

/* ---------- Detection banner + four-corner quad overlay ---------- */
.sfscan-detect { border-radius: 12px; padding: 9px 12px; font-size: 13px; line-height: 1.35; font-weight: 600; }
.sfscan-detect.ok { background: #e9f9ef; border: 1px solid #b6e6c6; color: #157a3a; }
.sfscan-detect.warnbar { background: #fff7ec; border: 1px solid #f3d6a0; color: #8a5a12; }
.sfscan-crop-wrap.is-quad { touch-action: none; }
.sfscan-quad-svg { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.sfscan-corner {
  position: absolute; width: 30px; height: 30px; margin: -15px 0 0 -15px;
  border-radius: 50%; background: rgba(255,255,255,0.95); border: 3px solid var(--sfscan-purple);
  box-shadow: 0 2px 8px rgba(20,12,50,0.35); touch-action: none; cursor: grab; z-index: 3;
}
.sfscan-corner:active { cursor: grabbing; transform: scale(1.08); }
.sfscan-flatprev {
  display: flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--sfscan-border); border-radius: 12px; padding: 8px 10px;
}
.sfscan-flatprev-label { font-size: 12px; font-weight: 700; color: var(--sfscan-ink-soft); }
.sfscan-flatprev-img {
  height: 64px; width: auto; max-width: 90px; object-fit: contain;
  border-radius: 6px; border: 1px solid var(--sfscan-border); background: #f7f5ff; margin-left: auto;
}

/* ---------- Confirm (page saved) ---------- */
.sfscan-confirm {
  flex: 1 1 auto;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; padding: 28px 24px; text-align: center;
}
.sfscan-confirm-check {
  width: 76px; height: 76px; border-radius: 50%; background: #e9f9ef; color: var(--sfscan-ok);
  display: flex; align-items: center; justify-content: center; font-size: 40px; margin-bottom: 6px;
}
.sfscan-confirm-title { font-size: 22px; font-weight: 800; margin: 0; }
.sfscan-confirm-sub { color: var(--sfscan-muted); margin: 0 0 6px; }
.sfscan-confirm-count { color: var(--sfscan-ink-soft); font-weight: 600; font-size: 14px; margin: 6px 0 0; }
.sfscan-confirm-note { color: var(--sfscan-muted); font-size: 13px; margin: 0; }
.sfscan-block { width: 100%; max-width: 360px; }

/* ---------- Page list ---------- */
.sfscan-pagelist { flex: 1 1 auto; overflow-y: auto; padding: 16px 16px 24px; }
.sfscan-pagelist-hint { text-align: center; color: var(--sfscan-muted); font-size: 14px; margin: 0 0 14px; }
.sfscan-pagelist-order { text-align: center; color: var(--sfscan-muted); font-size: 12px; margin: 14px 0 0; }
.sfscan-thumbs {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px;
}
.sfscan-thumb {
  background: #fff; border: 1px solid var(--sfscan-border); border-radius: 16px;
  padding: 10px; box-shadow: var(--sfs-card-shadow, 0 10px 30px rgba(74,58,140,0.08));
  display: flex; flex-direction: column; gap: 8px;
}
.sfscan-thumb-imgwrap {
  position: relative; aspect-ratio: 3 / 4; border-radius: 10px; overflow: hidden;
  background: #f1eefb; display: flex; align-items: center; justify-content: center;
}
.sfscan-thumb-img { width: 100%; height: 100%; object-fit: cover; }
.sfscan-thumb-num {
  position: absolute; top: 6px; left: 6px; z-index: 2;
  min-width: 22px; height: 22px; padding: 0 6px; border-radius: 11px;
  background: rgba(28,24,48,0.82); color: #fff; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.sfscan-thumb-flag {
  position: absolute; top: 6px; right: 6px; z-index: 2;
  width: 22px; height: 22px; border-radius: 50%; background: var(--sfscan-warn); color: #fff;
  font-size: 13px; font-weight: 800; display: flex; align-items: center; justify-content: center;
}
.sfscan-thumb-label { text-align: center; font-weight: 700; font-size: 13px; color: var(--sfscan-ink); }
.sfscan-thumb-ops { display: flex; justify-content: center; gap: 4px; flex-wrap: wrap; }
.sfscan-op {
  width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--sfscan-border);
  background: #fff; color: var(--sfscan-ink-soft); font-size: 15px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.sfscan-op:disabled { opacity: 0.35; cursor: default; }
.sfscan-op-danger { color: var(--sfscan-danger); border-color: #f3cfcb; }
.sfscan-thumb-add {
  align-items: center; justify-content: center; gap: 6px;
  border-style: dashed; color: var(--sfscan-purple-deep); cursor: pointer;
  font-weight: 700; min-height: 180px;
}
.sfscan-add-plus { font-size: 36px; line-height: 1; }

/* ---------- Footer ---------- */
.sfscan-footer {
  flex: 0 0 auto;
  display: flex; gap: 10px; padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: var(--sfscan-surface); border-top: 1px solid var(--sfscan-border);
}
.sfscan-btn-primary, .sfscan-btn-secondary, .sfscan-btn-danger, .sfscan-btn-ghost {
  flex: 1 1 auto; min-height: 50px; border-radius: 14px; font-size: 16px; font-weight: 700;
  cursor: pointer; border: 1px solid transparent; padding: 0 18px;
}
.sfscan-btn-primary {
  background: linear-gradient(135deg, var(--sfscan-purple) 0%, var(--sfscan-purple-deep) 100%);
  color: #fff; box-shadow: 0 10px 24px rgba(91,61,245,0.28);
}
.sfscan-btn-primary:disabled { opacity: 0.5; box-shadow: none; cursor: default; }
.sfscan-btn-secondary { background: #fff; border-color: var(--sfscan-border); color: var(--sfscan-ink); }
.sfscan-btn-danger { background: var(--sfscan-danger); color: #fff; }
.sfscan-btn-ghost { background: transparent; border-color: transparent; color: rgba(255,255,255,0.85); flex: 0 0 auto; }
.sfscan-confirm .sfscan-btn-primary,
.sfscan-confirm .sfscan-btn-secondary { min-height: 52px; }

/* ---------- Processing ---------- */
.sfscan-processing {
  flex: 1 1 auto;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 16px; padding: 32px 24px; text-align: center;
  background: linear-gradient(180deg, #1c1830 0%, #0f0d1c 100%); color: #fff;
}
.sfscan-spinner {
  width: 64px; height: 64px; border-radius: 50%;
  border: 5px solid rgba(255,255,255,0.18); border-top-color: var(--sfscan-purple);
  animation: sfscan-spin 0.9s linear infinite;
}
@keyframes sfscan-spin { to { transform: rotate(360deg); } }
.sfscan-proc-title { font-size: 20px; font-weight: 800; margin: 4px 0; }
.sfscan-proc-steps { list-style: none; margin: 6px 0 0; padding: 0; text-align: left; display: flex; flex-direction: column; gap: 10px; }
.sfscan-proc-step { display: flex; align-items: center; gap: 10px; font-size: 15px; color: rgba(255,255,255,0.55); }
.sfscan-proc-step.is-active { color: #fff; }
.sfscan-proc-step.is-done { color: rgba(255,255,255,0.85); }
.sfscan-proc-mark { width: 22px; text-align: center; color: var(--sfscan-purple); }
.sfscan-proc-step.is-done .sfscan-proc-mark { color: var(--sfscan-ok); }
.sfscan-proc-note { color: rgba(255,255,255,0.6); font-size: 13px; margin: 8px 0 0; max-width: 320px; }

/* ---------- Discard modal ---------- */
.sfscan-modal-backdrop {
  position: fixed; inset: 0; z-index: 10110;
  background: rgba(15,12,28,0.55);
  display: flex; align-items: center; justify-content: center; padding: 24px;
}
.sfscan-modal {
  background: #fff; border-radius: 20px; padding: 22px; max-width: 360px; width: 100%;
  box-shadow: 0 30px 90px rgba(20,12,50,0.4);
}
.sfscan-modal-title { font-size: 19px; font-weight: 800; margin: 0 0 8px; }
.sfscan-modal-body { color: var(--sfscan-ink-soft); font-size: 14px; line-height: 1.45; margin: 0 0 18px; }
.sfscan-modal-actions { display: flex; gap: 10px; }

@media (min-width: 721px) {
  .sfscan-shell { border-radius: 0; box-shadow: var(--sfs-shadow, 0 30px 90px rgba(60,45,130,0.26)); }
}