/* ===================================================================
   SLIDES / PRESENTATIONS SECTION  —  slides.css
   OrthoChronicles | Dr. Maninder Singh
   =================================================================== */

.slides-section { background: #fff; }

/* ── Stats bar ── */
.slides-stats-bar {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 0;
  background: linear-gradient(135deg, var(--orange-dark), var(--orange));
  border-radius: var(--radius-lg); padding: 0; margin-bottom: 40px;
  overflow: hidden;
}
.sstat {
  display: flex; align-items: center; gap: 10px;
  color: #fff; font-size: .85rem;
  padding: 18px 28px;
  border-right: 1px solid rgba(255,255,255,.2);
  flex: 1; justify-content: center; min-width: 160px;
}
.sstat:last-child { border-right: none; }
.sstat i { font-size: 1.2rem; color: rgba(255,255,255,.85); }
.sstat strong { font-size: 1.15rem; font-weight: 800; }

/* ── Filter tabs ── */
.slides-filter {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}
.sf-btn {
  padding: 9px 20px; border-radius: 100px;
  border: 2px solid var(--gray-200);
  background: #fff; color: var(--gray-600);
  font-size: .8rem; font-weight: 600;
  cursor: pointer; transition: var(--trans);
  font-family: 'Inter', sans-serif;
}
.sf-btn:hover { border-color: var(--orange); color: var(--orange); }
.sf-btn.active {
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  color: #fff; border-color: transparent;
  box-shadow: 0 4px 14px rgba(232,105,44,.35);
}

/* ══════════════════════════════════
   SLIDES  —  CLASSY LIST FORMAT
══════════════════════════════════ */
.slides-list {
  display: flex; flex-direction: column;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 56px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.slide-row {
  display: flex; align-items: center;
  border-bottom: 1px solid var(--gray-200);
  transition: background .22s ease;
  position: relative;
}
.slide-row:last-child { border-bottom: none; }
.slide-row.hidden { display: none; }
.slide-row:hover { background: var(--off-white); }
.slide-row::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--orange);
  opacity: 0; transition: opacity .2s ease;
}
.slide-row:hover::before { opacity: 1; }

/* Index number */
.slr-index {
  width: 52px; flex-shrink: 0; text-align: center;
  font-size: 1.05rem; font-weight: 800;
  color: var(--gray-200); font-variant-numeric: tabular-nums;
  letter-spacing: .02em; padding: 0 8px;
  transition: color .2s ease;
}
.slide-row:hover .slr-index { color: var(--orange); }

/* Thumbnail icon */
.slr-thumb {
  width: 60px; height: 80px; flex-shrink: 0;
  border-radius: 6px; position: relative;
  display: flex; align-items: center; justify-content: center;
  margin: 18px 0;
  overflow: hidden;
}
.slr-thumb.orange { background: linear-gradient(160deg, var(--orange-dark), var(--orange), var(--orange-light)); }
.slr-thumb.gray   { background: linear-gradient(160deg, #1E2A0D, var(--blue), var(--blue-light)); }
.slr-thumb > i { color: rgba(255,255,255,.5); font-size: 1.5rem; }
/* Slide lines decoration */
.slr-thumb::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 10px,
    rgba(255,255,255,.07) 10px, rgba(255,255,255,.07) 11px
  );
}
/* Available dot */
.slr-avail-dot {
  position: absolute; top: 6px; right: 6px;
  width: 7px; height: 7px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 2px rgba(34,197,94,.35);
  z-index: 1;
}

/* Body */
.slr-body {
  flex: 1; min-width: 0; padding: 18px 20px 18px 16px;
}
.slr-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; flex-wrap: wrap; margin-bottom: 5px;
}
.slr-category {
  font-size: .63rem; font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; color: var(--orange-dark);
  background: rgba(107,124,46,.1);
  padding: 2px 9px; border-radius: 100px;
  border: 1px solid rgba(107,124,46,.2);
}
.slr-meta {
  display: flex; gap: 14px; flex-shrink: 0;
}
.slr-meta span {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: .7rem; color: var(--gray-400); font-weight: 500;
}
.slr-meta i { color: var(--orange); font-size: .68rem; }
.slr-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.02rem; font-weight: 700;
  color: var(--gray-800); line-height: 1.3; margin-bottom: 4px;
}
.slr-author {
  font-size: .75rem; color: var(--gray-400);
  display: flex; align-items: center; gap: 5px; margin-bottom: 7px;
}
.slr-author i { color: var(--orange-light); font-size: .7rem; }
.slr-desc {
  font-size: .79rem; color: var(--gray-600); line-height: 1.65;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Actions */
.slr-actions {
  display: flex; flex-direction: column; gap: 8px;
  padding: 18px 20px 18px 0; flex-shrink: 0;
}
.slr-btn-pv,
.slr-btn-dl {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 18px; border-radius: 8px;
  font-size: .78rem; font-weight: 700; white-space: nowrap;
  transition: var(--trans); cursor: pointer;
  border: none; font-family: 'Inter', sans-serif;
  min-width: 120px; text-decoration: none;
}
.slr-btn-pv {
  background: rgba(107,124,46,.1);
  border: 1.5px solid var(--orange);
  color: var(--orange);
}
.slr-btn-pv:hover { background: var(--orange); color: #fff; transform: translateY(-1px); }
.slr-btn-dl {
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  color: #fff;
  box-shadow: 0 3px 10px rgba(107,124,46,.28);
}
.slr-btn-dl:hover { box-shadow: 0 5px 18px rgba(107,124,46,.4); transform: translateY(-1px); }
.slr-btn-dl.disabled {
  background: var(--gray-200); color: var(--gray-400);
  box-shadow: none; cursor: not-allowed;
}
.slr-btn-dl.disabled:hover { transform: none; }

/* Legacy class aliases (used elsewhere in JS) */
.btn-download-slide { display: none; } /* replaced by slr-btn-dl */
.btn-preview-slide  { display: none; } /* replaced by slr-btn-pv */

/* ── Slides list responsive ── */
@media (max-width: 768px) {
  .slr-index { width: 38px; font-size: .85rem; }
  .slr-thumb { width: 50px; height: 66px; margin: 14px 0; }
  .slr-body { padding: 14px 12px 14px 12px; }
  .slr-title { font-size: .93rem; }
  .slr-meta { display: none; }
  .slr-actions { padding: 14px 12px 14px 0; gap: 6px; }
  .slr-btn-pv, .slr-btn-dl { min-width: 90px; padding: 8px 10px; font-size: .74rem; }
}
@media (max-width: 480px) {
  .slide-row { flex-wrap: wrap; padding-bottom: 14px; }
  .slr-index { width: 34px; }
  .slr-thumb { width: 46px; height: 60px; margin: 12px 0; }
  .slr-body { padding: 12px 10px 6px 10px; width: calc(100% - 80px); }
  .slr-title { font-size: .88rem; }
  .slr-desc { display: none; }
  .slr-author { margin-bottom: 0; }
  .slr-actions {
    flex-direction: row;
    padding: 0 10px 0 80px;
    width: 100%; gap: 8px;
  }
  .slr-btn-pv, .slr-btn-dl { flex: 1; min-width: 0; padding: 9px 6px; font-size: .74rem; }
}

/* ══════════════════════════════════════════════
   DIRECT UPLOAD PANEL
══════════════════════════════════════════════ */
.sup-panel {
  background: var(--off-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px 32px 32px;
  margin-top: 0;
}
.sup-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.sup-panel-title {
  display: flex; align-items: center; gap: 10px;
  font-size: 1rem; font-weight: 700; color: var(--gray-800);
}
.sup-panel-title i { color: var(--orange); }
.sup-gear-btn {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--gray-100); border: 1.5px solid var(--gray-200);
  color: var(--gray-400); font-size: .85rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--trans);
}
.sup-gear-btn:hover { background: var(--gray-200); color: var(--gray-800); }

/* Token row */
.sup-token-row {
  display: flex; align-items: center; gap: 10px;
  background: var(--gray-100); border: 1.5px solid var(--gray-200);
  border-radius: var(--radius); padding: 10px 14px;
  margin-bottom: 16px; flex-wrap: wrap;
}
.sup-token-row > i { color: var(--orange); font-size: .9rem; flex-shrink: 0; }
.sup-token-row input {
  flex: 1; min-width: 200px;
  border: none; background: transparent;
  font-family: monospace; font-size: .85rem;
  color: var(--gray-800); outline: none;
}
.sup-token-save {
  padding: 6px 14px; border-radius: 7px;
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  color: #fff; font-size: .78rem; font-weight: 700;
  border: none; cursor: pointer; font-family: 'Inter', sans-serif;
  flex-shrink: 0;
}
.sup-token-status { font-size: .75rem; color: #16a34a; font-weight: 600; }

/* Metadata row below drop zone */
.sup-meta { margin-top: 16px; }

/* Progress */
.sup-progress {
  margin-top: 16px; background: var(--gray-100);
  border-radius: var(--radius); padding: 14px 16px;
}
.sup-prog-bar-bg {
  background: var(--gray-200); border-radius: 100px;
  height: 6px; margin-bottom: 12px; overflow: hidden;
}
.sup-prog-bar-fill {
  height: 100%; background: linear-gradient(90deg, var(--orange), var(--orange-dark));
  border-radius: 100px; width: 0%; transition: width .35s ease;
}
.sup-prog-steps { display: flex; flex-direction: column; gap: 6px; }
.sup-step {
  display: flex; align-items: center; gap: 8px;
  font-size: .78rem; color: var(--gray-400);
}
.sup-step.active { color: var(--orange); }
.sup-step.done   { color: #16a34a; }
.sup-step.error  { color: #dc2626; }

/* Success banner */
.sup-success {
  display: flex; align-items: center; gap: 14px;
  margin-top: 16px; padding: 14px 16px;
  background: #f0fdf4; border: 1.5px solid #86efac;
  border-radius: var(--radius);
  font-size: .88rem; color: #14532d; line-height: 1.5;
}
.sup-success i { font-size: 1.5rem; color: #16a34a; flex-shrink: 0; }
.sup-success strong { display: block; margin-bottom: 2px; }

@media (max-width: 600px) {
  .sup-panel { padding: 20px 16px 24px; }
}
@media (max-width: 480px) {
  .sup-panel { padding: 16px 12px 20px; }
  .sup-token-row { padding: 8px 12px; }
  .sup-token-row input { min-width: 140px; font-size: .8rem; }
  .slides-submit-banner { padding: 22px 14px; gap: 14px; }
  .ssb-icon { width: 48px; height: 48px; font-size: 2rem; }
  .ssb-text h3 { font-size: 1.2rem; }
  .slides-form-wrap { padding: 20px 14px 24px; }
  .btn-submit-slide { width: 100%; justify-content: center; }
}

/* ── Submit banner ── */
.slides-submit-wrap {
  background: var(--off-white); border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200); overflow: hidden;
}
.slides-submit-banner {
  display: flex; gap: 30px; align-items: flex-start;
  padding: 40px 40px 32px;
  background: linear-gradient(135deg, #1E1E1E 0%, #3D3D3D 60%, #555 100%);
}
.ssb-icon {
  width: 64px; height: 64px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.6rem; color: var(--orange);
}
.ssb-text h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.45rem; color: #fff; margin-bottom: 12px; line-height: 1.3;
}
.ssb-text > p { color: rgba(255,255,255,.8); font-size: .9rem; line-height: 1.8; margin-bottom: 18px; }
.ssb-perks { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; }
.ssb-perks li { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.85); font-size: .84rem; }
.ssb-perks i { color: var(--orange-light); font-size: .85rem; flex-shrink: 0; }

/* ── Slides form ── */
.slides-form-wrap { padding: 36px 40px 40px; }
.slides-form-wrap h4 {
  font-size: 1.1rem; color: var(--gray-800); font-weight: 700;
  margin-bottom: 24px; display: flex; align-items: center; gap: 10px;
}
.slides-form-wrap h4 i { color: var(--orange); }

.form-hint {
  display: block; margin-top: 6px;
  font-size: .76rem; color: var(--gray-400); line-height: 1.5;
}
.form-hint i { color: var(--orange); margin-right: 4px; }

.btn-submit-slide {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  color: #fff; padding: 14px 32px; border-radius: var(--radius);
  font-family: 'Inter', sans-serif; font-size: .95rem; font-weight: 600;
  border: none; cursor: pointer; transition: var(--trans);
  box-shadow: 0 4px 20px rgba(232,105,44,.3); margin-top: 8px;
}
.btn-submit-slide:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(232,105,44,.4); }
.btn-submit-slide:disabled { opacity: .6; cursor: not-allowed; transform: none; }

.slides-form-success {
  text-align: center; padding: 50px 20px;
}
.slides-form-success i { font-size: 3rem; color: var(--orange); margin-bottom: 16px; display: block; }
.slides-form-success h4 { font-size: 1.2rem; color: var(--gray-800); margin-bottom: 10px; }
.slides-form-success p { color: var(--gray-600); font-size: .9rem; line-height: 1.7; }

/* ══════════════════════════════════════════════
   PPTX UPLOAD DROP ZONE
══════════════════════════════════════════════ */
.pptx-drop-zone {
  border: 2px dashed var(--gray-200);
  border-radius: var(--radius);
  background: var(--gray-100);
  transition: var(--trans);
  cursor: pointer;
  min-height: 130px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.pptx-drop-zone:hover,
.pptx-drop-zone.drag-over {
  border-color: var(--orange);
  background: rgba(232,105,44,.05);
}
.pptx-drop-inner {
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; padding: 28px 24px; text-align: center; width: 100%;
  pointer-events: none;
}
.pptx-drop-icon {
  font-size: 2.6rem; color: var(--orange); margin-bottom: 4px;
}
.pptx-drop-text p { font-size: .88rem; color: var(--gray-600); margin: 0 0 4px; }
.pptx-drop-text strong { color: var(--gray-800); }
.pptx-browse-btn {
  color: var(--orange); font-weight: 700; cursor: pointer;
  pointer-events: all;
  text-decoration: underline; text-underline-offset: 2px;
}
.pptx-size-note { font-size: .76rem !important; color: var(--gray-400) !important; }
.pptx-selected {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 20px; width: 100%;
}
.pptx-selected-icon {
  width: 52px; height: 52px; border-radius: 10px; flex-shrink: 0;
  background: rgba(208,74,2,.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: #d04a02;
}
.pptx-selected-info { flex: 1; min-width: 0; }
.pptx-selected-name {
  font-weight: 700; font-size: .9rem; color: var(--gray-800);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pptx-selected-size { font-size: .76rem; color: var(--gray-400); margin-top: 4px; }
.pptx-remove-btn {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  background: var(--gray-200); border: none; color: var(--gray-600);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: .82rem; transition: var(--trans);
}
.pptx-remove-btn:hover { background: #fee2e2; color: #dc2626; }

/* ══════════════════════════════════════════════
   SLIDE PRESENTER MODAL
══════════════════════════════════════════════ */
.slide-modal {
  display: none; position: fixed; inset: 0; z-index: 2500;
  background: rgba(0,0,0,.92); backdrop-filter: blur(10px);
  align-items: center; justify-content: center;
}
.slide-modal.open { display: flex; }

/* ── Presenter wrapper ── */
.sp-wrap {
  width: calc(100% - 32px); max-width: 920px;
  height: 90vh; max-height: 640px;
  display: flex; flex-direction: column;
  background: #1a1a1a; border-radius: 14px; overflow: hidden;
  box-shadow: 0 28px 80px rgba(0,0,0,.7);
  animation: spIn .28s cubic-bezier(.34,1.56,.64,1);
}
@keyframes spIn {
  from { transform: scale(.9) translateY(18px); opacity: 0; }
  to   { transform: scale(1) translateY(0);     opacity: 1; }
}

/* ── Top bar ── */
.sp-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 11px 18px; background: #0f0f0f;
  border-bottom: 1px solid rgba(255,255,255,.07);
  flex-shrink: 0;
}
.sp-bar-left {
  display: flex; align-items: center; gap: 10px;
  font-size: .8rem; font-weight: 600; color: rgba(255,255,255,.75);
  min-width: 0;
}
.sp-bar-left i { color: var(--orange); font-size: .95rem; flex-shrink: 0; }
.sp-bar-left span {
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  max-width: 520px;
}
.sp-bar-right {
  display: flex; align-items: center; gap: 12px; flex-shrink: 0;
}
.sp-counter {
  font-size: .74rem; color: rgba(255,255,255,.45); font-weight: 700;
  letter-spacing: .06em;
  background: rgba(255,255,255,.08); padding: 4px 12px; border-radius: 100px;
}
.sp-close-btn {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  background: rgba(255,255,255,.1); border: none;
  color: rgba(255,255,255,.75); cursor: pointer; font-size: .82rem;
  display: flex; align-items: center; justify-content: center;
  transition: var(--trans);
}
.sp-close-btn:hover { background: var(--orange); color: #fff; }

/* ── Stage (prev | slide | next) ── */
.sp-stage {
  flex: 1; display: flex; align-items: stretch; overflow: hidden; min-height: 0;
}
.sp-nav-btn {
  width: 50px; flex-shrink: 0;
  background: rgba(255,255,255,.03); border: none;
  color: rgba(255,255,255,.35); font-size: 1rem; cursor: pointer;
  transition: var(--trans);
  display: flex; align-items: center; justify-content: center;
}
.sp-nav-btn:hover:not(:disabled) {
  background: rgba(232,105,44,.15); color: var(--orange);
}
.sp-nav-btn:disabled { opacity: .2; cursor: not-allowed; }

.sp-viewport {
  flex: 1; position: relative; overflow: hidden;
}

/* ── Individual slide ── */
.sp-slide {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  opacity: 0; transition: opacity .2s ease;
  pointer-events: none;
}
.sp-slide.active { opacity: 1; pointer-events: auto; }

/* Title slide */
.sp-slide.type-title {
  background: linear-gradient(140deg, var(--orange-dark) 0%, var(--orange) 55%, var(--orange-light) 100%);
  align-items: center; justify-content: center; text-align: center;
  padding: 40px 70px;
}
.sp-slide.type-title .sp-slide-logo {
  font-size: 3rem; color: rgba(255,255,255,.25); margin-bottom: 20px;
}
.sp-slide.type-title .sp-slide-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.1rem, 3.2vw, 1.9rem);
  color: #fff; font-weight: 700; line-height: 1.3; margin-bottom: 14px;
}
.sp-slide.type-title .sp-slide-sub {
  font-size: .9rem; color: rgba(255,255,255,.8);
  line-height: 1.7; max-width: 460px;
}
.sp-slide.type-title .sp-slide-meta {
  margin-top: 24px; padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.25);
  font-size: .78rem; color: rgba(255,255,255,.75);
  display: flex; gap: 20px; justify-content: center; flex-wrap: wrap;
}
.sp-slide.type-title .sp-slide-meta span {
  display: flex; align-items: center; gap: 7px;
}

/* Section divider slide */
.sp-slide.type-section {
  background: linear-gradient(140deg, #111 0%, #2a2a2a 60%, #3a3a3a 100%);
  align-items: center; justify-content: center; text-align: center;
  padding: 40px 70px;
}
.sp-section-num {
  font-size: 4.5rem; font-weight: 900; line-height: 1;
  color: rgba(255,255,255,.06); font-family: 'Playfair Display', serif;
  margin-bottom: 6px;
}
.sp-section-label {
  font-size: .7rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: .18em; color: var(--orange); margin-bottom: 14px;
}
.sp-section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1rem, 2.8vw, 1.65rem);
  color: #fff; line-height: 1.35;
}

/* Content slide */
.sp-slide.type-content { background: #fff; }
.sp-content-header {
  background: #1a1a1a; padding: 16px 32px;
  display: flex; align-items: center; gap: 14px; flex-shrink: 0;
}
.sp-slide-num {
  width: 30px; height: 30px; border-radius: 7px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  color: #fff; font-size: .75rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.sp-content-title { font-size: .97rem; font-weight: 700; color: #fff; line-height: 1.3; }
.sp-content-body {
  flex: 1; padding: 22px 32px; overflow-y: auto;
}
.sp-bullet-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.sp-bullet-list li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: .875rem; color: #2a2a2a; line-height: 1.6;
}
.sp-bullet-list li::before {
  content: ''; width: 8px; height: 8px; border-radius: 50%;
  background: var(--orange); flex-shrink: 0; margin-top: 7px;
}
.sp-content-footer {
  background: var(--gray-100); padding: 11px 32px;
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--gray-200); flex-shrink: 0;
}
.sp-content-footer span { font-size: .7rem; color: var(--gray-400); }

/* End slide */
.sp-slide.type-end {
  background: #111;
  align-items: center; justify-content: center; text-align: center;
  padding: 40px 70px;
}
.sp-end-icon {
  font-size: 3rem; color: var(--orange); margin-bottom: 18px;
}
.sp-slide.type-end h3 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1rem, 2.8vw, 1.55rem); color: #fff; margin-bottom: 14px;
}
.sp-slide.type-end p {
  font-size: .88rem; color: rgba(255,255,255,.65);
  line-height: 1.75; max-width: 440px;
}

/* ── Iframe viewer mode ── */
#spIframeMode {
  flex: 1 1 0; min-height: 0; overflow: hidden;
  flex-direction: column;
}
#spIframeMode iframe {
  width: 100%; height: 100%; border: none; display: block; flex: 1;
}

/* Download button in top bar */
.sp-download-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 7px;
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  color: #fff; font-size: .75rem; font-weight: 700;
  text-decoration: none; transition: var(--trans);
}
.sp-download-btn:hover { opacity: .9; }

/* Slides loading state */
.slides-loading {
  grid-column: 1 / -1; text-align: center;
  padding: 60px 20px; color: var(--gray-400);
  font-size: .9rem; display: flex;
  align-items: center; justify-content: center; gap: 10px;
}
.slides-loading i { font-size: 1.2rem; color: var(--orange); }

/* ── Footer dots ── */
.sp-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px; background: #0f0f0f;
  border-top: 1px solid rgba(255,255,255,.07); flex-shrink: 0;
}
.sp-dots { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.sp-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(255,255,255,.18); border: none; cursor: pointer;
  padding: 0; transition: var(--trans);
}
.sp-dot.active {
  background: var(--orange); width: 20px; border-radius: 4px;
}
.sp-dot:hover:not(.active) { background: rgba(255,255,255,.4); }
.sp-coming-tag {
  font-size: .7rem; color: rgba(255,255,255,.35);
  display: flex; align-items: center; gap: 6px; flex-shrink: 0;
}
.sp-coming-tag i { color: var(--orange); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .slides-grid { grid-template-columns: 1fr; }
  .slides-stats-bar { flex-direction: column; }
  .sstat { border-right: none; border-bottom: 1px solid rgba(255,255,255,.2); justify-content: flex-start; padding: 14px 20px; }
  .sstat:last-child { border-bottom: none; }
  .slides-submit-banner { flex-direction: column; padding: 28px 20px; gap: 20px; }
  .ssb-perks { grid-template-columns: 1fr; }
  .slides-form-wrap { padding: 24px 16px; }
}
@media (max-width: 600px) {
  .sp-wrap { width: 100%; max-height: 100svh; border-radius: 0; }
  .sp-nav-btn { width: 38px; }
  .sp-content-header,
  .sp-content-footer { padding-left: 18px; padding-right: 18px; }
  .sp-content-body { padding: 18px; }
  .sp-slide.type-title,
  .sp-slide.type-section,
  .sp-slide.type-end { padding: 28px 22px; }
  .sp-bar-left span { max-width: 180px; }
}

/* ══════════════════════════════════════════════
   PANEL TAB SWITCHER  (Upload / Submit)
══════════════════════════════════════════════ */
.sup-tabs {
  display: flex; gap: 0;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden;
  margin-bottom: 0;
}
.sup-tab {
  flex: 1;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 20px;
  font-family: 'Inter', sans-serif;
  font-size: .85rem; font-weight: 600;
  color: var(--gray-400);
  background: transparent;
  border: none; cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: var(--trans);
}
.sup-tab:hover { color: var(--teal); background: rgba(107,124,46,.05); }
.sup-tab.active {
  color: var(--teal);
  background: #fff;
  border-bottom-color: var(--teal);
}
.sup-tabs + .sup-panel,
.sup-tabs + .sup-panel + .sub-panel {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ══════════════════════════════════════════════
   SUBMISSION PANEL  (contributor form)
══════════════════════════════════════════════ */
.sub-panel {
  background: var(--off-white);
  border: 1px solid var(--gray-200);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding: 28px 32px 36px;
}

.sub-panel-note {
  display: flex; align-items: flex-start; gap: 10px;
  background: rgba(107,124,46,.08);
  border: 1px solid rgba(107,124,46,.22);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: .83rem; color: var(--gray-600); line-height: 1.6;
  margin-bottom: 24px;
}
.sub-panel-note i { color: var(--teal); flex-shrink: 0; margin-top: 2px; }

/* Required star */
.req { color: #dc2626; margin-left: 2px; }

/* Textarea */
#subDesc {
  width: 100%; resize: vertical;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: 'Inter', sans-serif; font-size: .88rem; color: var(--text);
  background: #fff; outline: none; transition: var(--trans);
  min-height: 80px;
}
#subDesc:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(107,124,46,.12); }

/* Sub file drop zone */
.sub-file-zone {
  border: 2px dashed var(--gray-200);
  border-radius: var(--radius);
  background: var(--gray-100);
  min-height: 100px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: var(--trans); overflow: hidden;
}
.sub-file-zone:hover,
.sub-file-zone.drag-over {
  border-color: var(--teal);
  background: rgba(107,124,46,.05);
}
.sub-file-inner {
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; padding: 22px 20px; text-align: center; width: 100%;
  pointer-events: none;
  font-size: .85rem; color: var(--gray-600);
}
.sub-file-inner i { font-size: 2rem; color: var(--teal); }
.sub-browse-btn {
  display: inline-block;
  padding: 6px 16px; border-radius: 7px;
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  color: #fff; font-size: .78rem; font-weight: 700;
  cursor: pointer; pointer-events: all;
  margin-top: 4px;
}
.sub-size-note { font-size: .74rem; color: var(--gray-400); }

.sub-file-chosen {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; width: 100%;
  font-size: .85rem; font-weight: 600; color: var(--gray-800);
}
.sub-file-chosen i { font-size: 1.6rem; color: #d04a02; flex-shrink: 0; }
.sub-file-chosen button {
  margin-left: auto; width: 28px; height: 28px; border-radius: 50%;
  background: var(--gray-200); border: none; color: var(--gray-600);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: .8rem; flex-shrink: 0; transition: var(--trans);
}
.sub-file-chosen button:hover { background: #fee2e2; color: #dc2626; }

/* Drive link input below drop zone */
.sub-file-alt {
  font-size: .78rem; color: var(--gray-400); margin-top: 10px;
  display: flex; flex-direction: column; gap: 4px;
}
.sub-file-alt i { color: var(--teal); }
#subDriveLink {
  width: 100%;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 9px 12px;
  font-family: 'Inter', sans-serif; font-size: .83rem; color: var(--text);
  background: #fff; outline: none; transition: var(--trans);
}
#subDriveLink:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(107,124,46,.12); }

@media (max-width: 600px) {
  .sub-panel { padding: 20px 16px 28px; }
  .sup-tab { font-size: .78rem; padding: 12px 12px; }
}