/* ============================================================
   AIC Flipbook — reader gaya Flipsnack
   ============================================================ */
.aicfb{
  --aicfb-h:640px; --aicfb-accent:#4FC3F7; --aicfb-blue:#2f7bf6;
  position:relative; width:100%; margin:0 auto; font-family:inherit;
  border-radius:14px; overflow:hidden;
  background:linear-gradient(180deg,#71828f 0%,#63737f 100%);
  -webkit-tap-highlight-color:transparent;
}
.aicfb *{ box-sizing:border-box; }

/* ---------- panggung ---------- */
.aicfb-stage{ position:relative; height:var(--aicfb-h); overflow:hidden; }
.aicfb-viewport{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  padding:34px 78px 58px; overflow:hidden; touch-action:none;
}
.aicfb-viewport.is-zoomed{ cursor:grab; }
.aicfb-viewport.is-zoomed:active{ cursor:grabbing; }
.aicfb-book{ transform-origin:center center; transition:transform .18s ease; max-width:100%; max-height:100%; }
.aicfb-book .stf__parent{ margin:0 auto; filter:drop-shadow(0 20px 44px rgba(0,0,0,.34)); }
/* buang latar PUTIH bawaan StPageFlip (sheet halaman / sampul keras / area kosong)
   -> biarkan latar slate tembus. Sasar SEMUA elemen stf__ */
.aicfb [class^="stf__"],
.aicfb [class*=" stf__"]{ background-color:transparent !important; }

/* ---------- loader tiga bar ---------- */
.aicfb-loading{ position:absolute; inset:0; z-index:6; display:flex; align-items:center; justify-content:center; gap:9px; }
.aicfb-loading span{ width:11px; height:52px; border-radius:2px; background:#fff; animation:aicfb-eq 1.1s ease-in-out infinite; }
.aicfb-loading span:nth-child(2){ animation-delay:.18s; }
.aicfb-loading span:nth-child(3){ animation-delay:.36s; }
@keyframes aicfb-eq{ 0%,100%{ transform:scaleY(.42); opacity:.55 } 50%{ transform:scaleY(1); opacity:1 } }
.aicfb-loading.is-error{ gap:0; }
.aicfb-err{ color:#fff; font-size:14px; text-align:center; padding:0 20px; }
.aicfb-err a{ color:#fff; font-weight:700; text-decoration:underline; white-space:nowrap; }

/* ---------- panah samping ---------- */
.aicfb-nav{
  position:absolute; top:50%; transform:translateY(-50%); z-index:7;
  width:64px; height:120px; display:grid; place-items:center; cursor:pointer;
  background:transparent; border:0; color:#fff; opacity:0; pointer-events:none;
  transition:opacity .3s ease, color .2s;
  filter:drop-shadow(0 2px 5px rgba(0,0,0,.4));
}
.aicfb-nav:hover{ color:#eaf2ff; }
.aicfb-nav svg{ width:46px; height:46px; fill:none; stroke:currentColor; stroke-width:2.4; stroke-linecap:round; stroke-linejoin:round; }
.aicfb-nav-prev{ left:6px; } .aicfb-nav-next{ right:6px; }

/* ---------- bar bawah ---------- */
.aicfb-bottom{
  position:absolute; left:0; right:0; bottom:0; z-index:7;
  padding:0 0 8px; opacity:0; pointer-events:none; transition:opacity .3s ease;
  background:linear-gradient(180deg,transparent 0%,rgba(8,16,26,.0) 30%,rgba(8,16,26,.62) 100%);
}
/* tampil saat kursor di area */
.aicfb.is-chrome .aicfb-nav,
.aicfb.is-chrome .aicfb-bottom{ opacity:1; pointer-events:auto; }

/* scrubber progres */
.aicfb-scrub{ position:relative; height:16px; margin-bottom:4px; cursor:pointer; display:flex; align-items:center; }
.aicfb-scrub::before{ content:""; position:absolute; left:0; right:0; height:5px; background:rgba(255,255,255,.28); }
.aicfb-scrub-fill{ position:absolute; left:0; height:5px; width:0; background:var(--aicfb-blue); }
.aicfb-scrub-handle{ position:absolute; left:0; width:14px; height:14px; border-radius:50%; background:var(--aicfb-blue); border:2px solid #fff; transform:translateX(-50%); box-shadow:0 1px 4px rgba(0,0,0,.4); }

.aicfb-bottom-row{ display:flex; align-items:center; gap:14px; padding:6px 16px 2px; }
.aicfb-range{ font-size:14px; font-weight:800; color:#fff; letter-spacing:.02em; text-shadow:0 1px 2px rgba(0,0,0,.4); white-space:nowrap; }
.aicfb-bottom-tools{ display:flex; align-items:center; gap:6px; margin-left:auto; }

.aicfb-btn{ display:grid; place-items:center; width:38px; height:38px; border-radius:9px; cursor:pointer;
  color:#fff; text-decoration:none; background:transparent; border:0; transition:background .2s, color .2s, transform .15s; }
.aicfb-btn:hover{ background:rgba(255,255,255,.16); }
.aicfb-btn:active{ transform:scale(.92); }
.aicfb-btn.is-active{ background:rgba(255,255,255,.22); }
.aicfb-btn svg{ width:20px; height:20px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

.aicfb-zoom-slider{ -webkit-appearance:none; appearance:none; width:88px; height:4px; border-radius:999px; background:rgba(255,255,255,.32); outline:none; cursor:pointer; }
.aicfb-zoom-slider::-webkit-slider-thumb{ -webkit-appearance:none; appearance:none; width:13px; height:13px; border-radius:50%; background:#fff; cursor:pointer; box-shadow:0 1px 3px rgba(0,0,0,.4); }
.aicfb-zoom-slider::-moz-range-thumb{ width:13px; height:13px; border-radius:50%; background:#fff; border:0; cursor:pointer; }

/* ---------- thumbnails ---------- */
.aicfb-thumbs{
  position:absolute; left:0; right:0; bottom:56px; z-index:8;
  display:grid; grid-auto-flow:column; grid-auto-columns:66px; gap:9px;
  padding:0 16px; max-height:0; overflow-x:auto; overflow-y:hidden;
  background:rgba(8,16,26,.78); backdrop-filter:blur(10px);
  transition:max-height .3s ease, padding .3s ease; opacity:0;
}
.aicfb-thumbs.is-open{ max-height:126px; padding:13px 16px; opacity:1; }
.aicfb-thumb{ position:relative; padding:0; border:2px solid transparent; border-radius:6px; overflow:hidden; cursor:pointer; background:#fff; height:98px; transition:border-color .2s, transform .2s; }
.aicfb-thumb img{ display:block; width:100%; height:100%; object-fit:cover; opacity:.82; transition:opacity .2s; }
.aicfb-thumb span{ position:absolute; left:3px; bottom:3px; font-size:10px; font-weight:700; color:#fff; background:rgba(0,0,0,.55); padding:1px 5px; border-radius:5px; }
.aicfb-thumb:hover{ transform:translateY(-2px); } .aicfb-thumb:hover img{ opacity:1; }
.aicfb-thumb.is-active{ border-color:var(--aicfb-accent); } .aicfb-thumb.is-active img{ opacity:1; }

.aicfb-toast{ position:absolute; left:50%; bottom:74px; transform:translateX(-50%); z-index:9;
  background:rgba(8,16,26,.9); color:#fff; font-size:12.5px; font-weight:600; padding:8px 16px; border-radius:999px;
  opacity:0; transition:opacity .25s ease; pointer-events:none; }
.aicfb-toast.is-show{ opacity:1; }

.aicfb-empty{ padding:20px; border:1px dashed #c3ccd6; border-radius:12px; color:#5b6b7c; font-size:14px; text-align:center; }

@media (max-width:640px){
  .aicfb{ --aicfb-h:70vh; }
  .aicfb-viewport{ padding:14px 44px 54px; }
  .aicfb-nav{ width:40px; } .aicfb-nav svg{ width:34px; height:34px; }
  .aicfb-zoom-slider{ display:none; }
}
@media (prefers-reduced-motion:reduce){
  .aicfb-book,.aicfb-btn,.aicfb-thumbs,.aicfb-nav,.aicfb-bottom{ transition:none !important; }
  .aicfb-loading span{ animation-duration:1.6s; }
}

/* ============================================================
   GALERI SAMPUL
   ============================================================ */
.aicfb-gallery{ --aicfb-cols:4; --aicfb-ratio:3/4; --aicfb-accent:#1c8fb0; font-family:inherit; }
.aicfb-grid{ display:grid; grid-template-columns:repeat(var(--aicfb-cols),1fr); gap:30px 26px; }
.aicfb-card{
  display:flex; flex-direction:column; gap:12px; padding:0; border:0; background:none;
  cursor:pointer; text-align:left; font-family:inherit;
}
.aicfb-cover{
  position:relative; display:block; aspect-ratio:var(--aicfb-ratio);
  border-radius:12px; overflow:hidden; background:#12233d center/cover no-repeat;
  box-shadow:0 1px 2px rgba(10,24,48,.1), 0 16px 30px -18px rgba(10,24,48,.5);
  transition:transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease;
}
.aicfb-card:hover .aicfb-cover{ transform:translateY(-8px); box-shadow:0 2px 4px rgba(10,24,48,.12), 0 30px 50px -24px rgba(10,24,48,.55); }
.aicfb-card:focus-visible{ outline:none; }
.aicfb-card:focus-visible .aicfb-cover{ box-shadow:0 0 0 3px var(--aicfb-accent), 0 30px 50px -24px rgba(10,24,48,.55); }
.aicfb-cover-fallback{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  padding:18px; text-align:center; color:#fff; font-weight:800; font-size:15px; line-height:1.3;
  background:linear-gradient(150deg,#0a2540,#123a63 55%,#1c7c8c);
}
.aicfb-open{
  position:absolute; left:50%; bottom:14px; transform:translate(-50%,10px);
  display:inline-flex; align-items:center; gap:7px; z-index:2;
  padding:8px 16px; border-radius:999px; font-size:12px; font-weight:700; color:#04121f;
  background:var(--aicfb-accent); opacity:0; transition:opacity .25s ease, transform .25s ease;
}
.aicfb-open svg{ width:14px; height:14px; fill:none; stroke:currentColor; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round; }
.aicfb-cover::after{ content:""; position:absolute; inset:0; background:linear-gradient(180deg,transparent 55%,rgba(10,24,48,.55)); opacity:0; transition:opacity .25s ease; }
.aicfb-card:hover .aicfb-cover::after{ opacity:1; }
.aicfb-card:hover .aicfb-open{ opacity:1; transform:translate(-50%,0); }
.aicfb-cap{ font-size:13.5px; font-weight:600; line-height:1.35; color:#12263a;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
[data-theme="dark"] .aicfb-cap{ color:#dbe5ef; }


/* ============================================================
   MODAL POPUP
   ============================================================ */
.aicfb-modal{ position:fixed; inset:0; z-index:100000; display:flex; align-items:center; justify-content:center;
  padding:clamp(8px,2vw,26px); opacity:0; visibility:hidden; transition:opacity .3s ease, visibility .3s ease; }
.aicfb-modal.is-open{ opacity:1; visibility:visible; }
.aicfb-modal-backdrop{ position:absolute; inset:0; background:rgba(6,12,20,.9); }
.aicfb-modal-inner{ position:relative; z-index:2; width:min(1600px,100%); height:min(94vh,100%); transform:scale(.98);
  transition:transform .3s cubic-bezier(.2,.8,.2,1); }
.aicfb-modal.is-open .aicfb-modal-inner{ transform:scale(1); }
.aicfb-modal-inner .aicfb{ --aicfb-h:100%; width:100%; height:100%; border-radius:14px; }
.aicfb-modal-inner .aicfb-stage{ height:100%; }
.aicfb-modal-close{ position:absolute; top:12px; right:14px; z-index:10; width:44px; height:44px; border-radius:50%;
  display:grid; place-items:center; cursor:pointer; color:#fff; background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.3); backdrop-filter:blur(8px); transition:background .2s, color .2s, transform .2s; }
.aicfb-modal-close:hover{ background:#fff; color:#0a1830; transform:rotate(90deg); }
.aicfb-modal-close svg{ width:22px; height:22px; fill:none; stroke:currentColor; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round; }
.aicfb-modal:fullscreen{ padding:0; } .aicfb-modal:fullscreen .aicfb-modal-inner{ width:100%; height:100%; }
.aicfb-modal:fullscreen .aicfb-modal-inner .aicfb{ border-radius:0; }
body.aicfb-lock{ overflow:hidden; }

@media (max-width:820px){ .aicfb-gallery{ --aicfb-cols:2; } }
@media (max-width:480px){ .aicfb-gallery{ --aicfb-cols:2; } .aicfb-grid{ gap:20px 16px; } }