/* ================================================================
   Alhiyara Flip — Minimal UI
   Toolbar atas & slider bawah digantikan dengan:
     • Anak panah tepi kiri/kanan
     • Bar terapung minimal di bawah tengah
   ================================================================ */

/* === Variables === */
.af-flip-book {
  --af-bg:             #f0ece6;        /* background lembut parchment */
  --af-book-bg:        #fff;
  --af-page-shadow:    rgba(0,0,0,0.15);
  --af-thumb-bg:       #2a2a2a;
  --af-thumb-active:   #c9a84c;
  --af-thumb-active-bg:#1a1a2e;
  --af-accent:         #c9a84c;        /* emas */
  --af-error-bg:       #fff0f0;
  --af-error-color:    #c00;
  --af-font:           system-ui, -apple-system, 'Segoe UI', sans-serif;
  --af-radius:         8px;
  --af-flip-speed:     0.7s;
  --af-perspective:    1400px;

  /* Bar terapung */
  --af-bar-bg:         rgba(30, 30, 30, 0.82);
  --af-bar-color:      #e8e8e8;
  --af-bar-hover:      rgba(255,255,255,0.12);
  --af-bar-radius:     999px;

  position: relative;
  width: 100%;
  min-width: 100%;
  box-sizing: border-box;
  background: var(--af-bg);
  border-radius: var(--af-radius);
  overflow: hidden;
  font-family: var(--af-font);
  user-select: none;
  -webkit-user-select: none;
  display: flex;
  flex-direction: column;
  direction: ltr;
  padding: 20px 0 56px 0;
}

/* ================================================================
   Main Area
   ================================================================ */
.af-main-area {
  position: relative;
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

/* ================================================================
   Viewport
   ================================================================ */
.af-viewport {
  flex: 1;
  position: relative;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--af-bg);
}

/* ================================================================
   Spread & Pages
   ================================================================ */
.af-spread {
  position: relative;
  display: flex;
  perspective: var(--af-perspective);
  perspective-origin: center center;
  margin: 28px 60px;   /* kiri/kanan 60px — bagi ruang anak panah */
  flex-shrink: 0;
}

.af-page {
  position: relative;
  background: var(--af-book-bg);
  flex-shrink: 0;
}

.af-page canvas { display: block; }

.af-page--left {
  border-radius: 6px 0 0 6px;
  box-shadow: -2px 2px 12px var(--af-page-shadow),
              inset 2px 0 4px rgba(0,0,0,0.07);
  z-index: 1;
}

.af-page--right {
  border-radius: 0 6px 6px 0;
  box-shadow:  2px 2px 12px var(--af-page-shadow),
              inset -2px 0 4px rgba(0,0,0,0.07);
  z-index: 0;
}

/* Mode 1 Helaian (Single Page untuk Mobile/Phone) */
.af-flip-book--single .af-spread {
  margin: 20px 24px !important;
}

.af-flip-book--single .af-page--left,
.af-flip-book--single .af-page--right {
  border-radius: 8px !important;
  box-shadow: 0 6px 28px var(--af-page-shadow), inset 0 0 4px rgba(0,0,0,0.05) !important;
}

/* ================================================================
   Side Arrows
   ================================================================ */
.af-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;

  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;

  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.85);
  color: #333;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(0,0,0,0.14);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);

  transition: background 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
  opacity: 0.7;
}

.af-arrow:hover {
  background: #fff;
  opacity: 1;
  transform: translateY(-50%) scale(1.08);
}

.af-arrow:active {
  transform: translateY(-50%) scale(0.96);
}

.af-arrow svg {
  width: 18px;
  height: 18px;
  display: block;
  flex-shrink: 0;
}

.af-arrow--prev { left: 10px; }
.af-arrow--next { right: 10px; }

/* Sembunyikan anak panah bila hujung halaman */
.af-arrow:disabled {
  opacity: 0.25;
  cursor: default;
  pointer-events: none;
}

/* ================================================================
   Flip Layer (3-D animation)
   ================================================================ */
.af-flip-layer {
  position: absolute;
  top: 0;
  height: 100%;
  transform-style: preserve-3d;
  z-index: 5;
  pointer-events: none;
}

.af-flip-layer--right {
  right: 0;
  transform-origin: left center;
}

.af-flip-layer--left {
  left: 0;
  transform-origin: right center;
}

.af-flip-layer.flipping-right {
  animation: af-flip-right var(--af-flip-speed) cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}

.af-flip-layer.flipping-left {
  animation: af-flip-left var(--af-flip-speed) cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}

@keyframes af-flip-right {
  0%   { transform: rotateY(0deg); }
  100% { transform: rotateY(-180deg); }
}

@keyframes af-flip-left {
  0%   { transform: rotateY(0deg); }
  100% { transform: rotateY(180deg); }
}

.af-flip-front,
.af-flip-back {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  overflow: hidden;
}

.af-flip-front { z-index: 1; }
.af-flip-back  { transform: rotateY(180deg); }

.af-flip-front canvas,
.af-flip-back  canvas { display: block; }

/* ================================================================
   Minimal Floating Bar (bawah tengah)
   ================================================================ */
.af-minbar {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;

  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;

  background: var(--af-bar-bg);
  color: var(--af-bar-color);
  border-radius: var(--af-bar-radius);
  box-shadow: 0 4px 24px rgba(0,0,0,0.25);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);

  font-size: 12px;
  white-space: nowrap;
}

/* Kumpulan nombor halaman */
.af-flip-book .af-minbar .af-minbar-group,
.af-minbar-group {
  display: flex !important;
  align-items: center !important;
  gap: 3px !important;
}

.af-flip-book .af-minbar .af-page-input,
input.af-page-input,
input.af-page-input[type="number"] {
  width: 28px !important;
  height: 24px !important;
  min-height: 24px !important;
  max-height: 24px !important;
  padding: 0 2px 0 0 !important;
  margin: 0 !important;
  border: none !important;
  border-radius: 0 !important;
  background: transparent !important;
  background-color: transparent !important;
  color: #ffffff !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  line-height: 24px !important;
  font-family: var(--af-font) !important;
  text-align: right !important;
  box-shadow: none !important;
  -moz-appearance: textfield !important;
  transition: background 0.2s, border-radius 0.2s !important;
}

.af-flip-book .af-minbar .af-page-input:focus,
input.af-page-input:focus,
input.af-page-input[type="number"]:focus {
  outline: none !important;
  border: none !important;
  background: rgba(255, 255, 255, 0.15) !important;
  background-color: rgba(255, 255, 255, 0.15) !important;
  border-radius: 4px !important;
  padding: 0 4px !important;
  text-align: center !important;
  color: #ffffff !important;
  box-shadow: none !important;
}

.af-flip-book .af-minbar .af-page-input::-webkit-outer-spin-button,
.af-flip-book .af-minbar .af-page-input::-webkit-inner-spin-button,
input.af-page-input::-webkit-outer-spin-button,
input.af-page-input::-webkit-inner-spin-button {
  -webkit-appearance: none !important;
  margin: 0 !important;
}

.af-flip-book .af-minbar .af-page-sep,
.af-flip-book .af-minbar .af-page-total,
.af-page-sep,
.af-page-total {
  font-size: 13px !important;
  font-weight: 600 !important;
  color: rgba(255, 255, 255, 0.85) !important;
}

/* Divider menegak */
.af-minbar-divider {
  width: 1px;
  height: 16px;
  background: rgba(255,255,255,0.18);
  margin: 0 4px;
  flex-shrink: 0;
}

/* Zoom label */
.af-zoom-label {
  font-size: 11px !important;
  font-weight: 600 !important;
  min-width: 36px !important;
  text-align: center !important;
  color: rgba(255,255,255,0.75) !important;
}

/* Butang mini dalam bar */
.af-flip-book .af-minbar .af-minbtn,
button.af-minbtn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 28px !important;
  height: 28px !important;
  padding: 0 !important;
  margin: 0 !important;
  border: none !important;
  border-radius: 6px !important;
  background: transparent !important;
  color: var(--af-bar-color) !important;
  cursor: pointer !important;
  transition: background 0.15s ease, color 0.15s ease !important;
  flex-shrink: 0 !important;
}

.af-flip-book .af-minbar .af-minbtn:hover,
button.af-minbtn:hover {
  background: var(--af-bar-hover) !important;
  color: #fff !important;
}

.af-flip-book .af-minbar .af-minbtn:active,
button.af-minbtn:active {
  background: rgba(255,255,255,0.18) !important;
}

/* ================================================================
   Thumbnail Panel
   ================================================================ */
.af-thumbnails {
  width: 150px;
  flex-shrink: 0;
  background: var(--af-thumb-bg);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: #555 transparent;
  z-index: 5;
}

.af-thumbnails::-webkit-scrollbar { width: 4px; }
.af-thumbnails::-webkit-scrollbar-track { background: transparent; }
.af-thumbnails::-webkit-scrollbar-thumb { background: #555; border-radius: 2px; }

.af-thumb-item {
  position: relative;
  padding: 6px;
  cursor: pointer;
  border-bottom: 1px solid #3a3a3a;
  transition: background 0.15s;
}

.af-thumb-item:hover { background: #3a3a3a; }

.af-thumb-item--active {
  background: var(--af-thumb-active-bg);
  box-shadow: inset 3px 0 0 var(--af-thumb-active);
}

.af-thumb-item canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px;
}

.af-thumb-label {
  display: block;
  text-align: center;
  font-size: 10px;
  color: #aaa;
  margin-top: 3px;
}

/* ================================================================
   Loading & Error
   ================================================================ */
.af-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(240,236,230,0.7);
  z-index: 20;
  color: #555;
  font-size: 14px;
  gap: 10px;
  backdrop-filter: blur(4px);
}

.af-spinner {
  width: 28px;
  height: 28px;
  border: 2.5px solid rgba(0,0,0,0.12);
  border-top-color: var(--af-accent);
  border-radius: 50%;
  animation: af-spin 0.8s linear infinite;
}

@keyframes af-spin { to { transform: rotate(360deg); } }

.af-error {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--af-error-bg);
  z-index: 20;
  color: var(--af-error-color);
  font-size: 14px;
  padding: 24px;
  text-align: center;
}

/* ================================================================
   Fullscreen
   ================================================================ */
.af-flip-book.af-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 99999;
  border-radius: 0;
  width: 100vw !important;
  height: 100vh !important;
}

/* ================================================================
   RTL Support
   ================================================================ */
.af-flip-book--rtl .af-page--left {
  border-radius: 0 6px 6px 0;
  box-shadow:  2px 2px 12px var(--af-page-shadow),
              inset -2px 0 4px rgba(0,0,0,0.07);
}

.af-flip-book--rtl .af-page--right {
  border-radius: 6px 0 0 6px;
  box-shadow: -2px 2px 12px var(--af-page-shadow),
              inset 2px 0 4px rgba(0,0,0,0.07);
}

.af-flip-book--rtl .af-thumb-item--active {
  box-shadow: inset -3px 0 0 var(--af-thumb-active);
}

/* ================================================================
   Auto-Height Mode
   ================================================================ */
.af-flip-book--auto-height {
  height: auto;
  min-height: 200px;
  transition: height 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.af-flip-book--auto-height .af-main-area { flex: 1 1 auto; }
.af-flip-book--auto-height .af-viewport  { overflow-x: hidden; }

/* ================================================================
   Responsive
   ================================================================ */
@media (max-width: 768px) {
  .af-flip-book { padding: 16px 0 44px 0; }
  .af-spread { margin: 16px 48px; }

  .af-arrow {
    width: 34px;
    height: 34px;
    opacity: 0.85;
  }

  .af-arrow svg { width: 15px; height: 15px; }
  .af-arrow--prev { left: 6px; }
  .af-arrow--next { right: 6px; }

  .af-minbar { bottom: 12px; padding: 5px 10px; gap: 4px; }
}

@media (max-width: 480px) {
  .af-flip-book { padding: 12px 0 40px 0; }
  .af-spread { margin: 12px 40px; }

  .af-arrow { width: 30px; height: 30px; }
  .af-arrow svg { width: 13px; height: 13px; }

  .af-thumbnails {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 130px;
    z-index: 15;
    box-shadow: 2px 0 10px rgba(0,0,0,0.35);
  }

  .af-flip-book--rtl .af-thumbnails {
    left: auto;
    right: 0;
    box-shadow: -2px 0 10px rgba(0,0,0,0.35);
  }

  .af-zoom-label { display: none; }
}