/*
 * KKN Flipbook RealBook Adaptive R1
 * UI-only progressive enhancement for Laravel/Blade flipbook viewer.
 * No external dependency. No database/controller/route changes.
 */

:root {
    --kkn-book-paper: #fffdf8;
    --kkn-book-ink: #18384d;
    --kkn-book-muted: #748188;
    --kkn-book-gold: #c99728;
    --kkn-book-edge: #e6ddcd;
    --kkn-book-shadow: rgba(20, 43, 56, .18);
    --kkn-book-radius: 16px;
    --kkn-book-turn-duration: 640ms;
}

/* Intro copy requested to be removed from the compact viewer header. */
.kkn-book-intro-hidden {
    display: none !important;
}

/* Compact toolbar: keep controls/select/status, remove wasted vertical space. */
.kkn-book-toolbar {
    min-height: 0 !important;
    height: auto !important;
    padding-top: 12px !important;
    padding-bottom: 12px !important;
}

.kkn-book-status-wrap {
    min-width: 0;
}

.kkn-book-page-status {
    white-space: nowrap;
}

.kkn-book-group-select {
    width: 100% !important;
    max-width: 100% !important;
    min-height: 44px;
}

/* Numbered navigation always fits the available device width. */
.kkn-book-nav {
    display: grid !important;
    grid-template-columns: repeat(var(--kkn-book-page-count, 6), minmax(0, 1fr)) !important;
    gap: 8px !important;
    width: 100% !important;
    max-width: 100% !important;
    overflow: visible !important;
    padding-left: 2px !important;
    padding-right: 2px !important;
}

.kkn-book-nav-btn {
    min-width: 0 !important;
    width: 100% !important;
    max-width: none !important;
    min-height: 46px;
    touch-action: manipulation;
}

/* Book stage / real paper treatment. */
.kkn-book-stage {
    position: relative !important;
    perspective: 1800px;
    isolation: isolate;
    padding-right: 8px;
    padding-bottom: 9px;
}

.kkn-realbook-page {
    position: relative !important;
    z-index: 1;
    max-width: 100% !important;
    width: 100% !important;
    background: var(--kkn-book-paper) !important;
    border: 1px solid rgba(94, 74, 43, .14) !important;
    border-radius: var(--kkn-book-radius) !important;
    box-shadow:
        0 2px 0 rgba(213, 202, 184, .90),
        0 5px 0 rgba(227, 218, 201, .82),
        0 14px 34px rgba(20, 43, 56, .13),
        0 28px 58px rgba(20, 43, 56, .08) !important;
    transform-style: preserve-3d;
    backface-visibility: hidden;
}

.kkn-book-spine-decor,
.kkn-book-page-edge,
.kkn-book-bottom-edge {
    position: absolute;
    pointer-events: none;
    z-index: 20;
}

.kkn-book-spine-decor {
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 14px;
    border-radius: var(--kkn-book-radius) 0 0 var(--kkn-book-radius);
    background: linear-gradient(
        90deg,
        rgba(73, 52, 25, .22) 0%,
        rgba(255, 255, 255, .22) 18%,
        rgba(86, 63, 31, .12) 44%,
        rgba(255, 255, 255, .28) 70%,
        rgba(66, 48, 24, .08) 100%
    );
    box-shadow: inset -3px 0 7px rgba(70, 50, 24, .10);
}

.kkn-book-page-edge {
    top: 10px;
    right: -7px;
    bottom: 14px;
    width: 8px;
    border-radius: 0 7px 7px 0;
    background: repeating-linear-gradient(
        to bottom,
        #f7f1e6 0,
        #f7f1e6 2px,
        #ded4c3 3px,
        #fffaf0 4px
    );
    box-shadow: 2px 2px 5px rgba(74, 54, 28, .16);
}

.kkn-book-bottom-edge {
    left: 12px;
    right: 4px;
    bottom: -7px;
    height: 8px;
    border-radius: 0 0 8px 8px;
    background: repeating-linear-gradient(
        to right,
        #f7f1e6 0,
        #f7f1e6 3px,
        #ddd3c2 4px,
        #fffaf0 5px
    );
    box-shadow: 0 2px 5px rgba(74, 54, 28, .14);
}

/* Give page contents comfortable mobile line length without reducing information. */
.kkn-realbook-page img,
.kkn-realbook-page video,
.kkn-realbook-page iframe,
.kkn-realbook-page table {
    max-width: 100% !important;
}

.kkn-realbook-page img,
.kkn-realbook-page video {
    height: auto;
}

/* Program/intervention cards: on mobile put label above its value. */
.kkn-book-program-card {
    min-width: 0 !important;
    max-width: 100% !important;
}

.kkn-book-field-row {
    min-width: 0;
}

.kkn-book-field-label {
    color: var(--kkn-book-muted) !important;
}

/* 3D turning sheet. It is a visual clone; existing navigation logic stays authoritative. */
.kkn-book-turn-sheet {
    position: fixed !important;
    margin: 0 !important;
    z-index: 2147483000 !important;
    pointer-events: none !important;
    overflow: hidden !important;
    transform-style: preserve-3d !important;
    backface-visibility: hidden !important;
    will-change: transform, filter, opacity;
    box-shadow: 0 18px 48px rgba(20, 43, 56, .20) !important;
    background: var(--kkn-book-paper) !important;
}

.kkn-book-turn-sheet::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0;
    background: linear-gradient(
        90deg,
        transparent 38%,
        rgba(48, 36, 20, .05) 59%,
        rgba(38, 28, 16, .19) 82%,
        rgba(25, 18, 10, .33) 100%
    );
    animation: kknBookFoldShadow var(--kkn-book-turn-duration) ease both;
}

.kkn-book-turn-forward {
    transform-origin: left center !important;
    animation: kknBookTurnForward var(--kkn-book-turn-duration) cubic-bezier(.31,.02,.18,.99) both;
}

.kkn-book-turn-backward {
    transform-origin: right center !important;
    animation: kknBookTurnBackward var(--kkn-book-turn-duration) cubic-bezier(.31,.02,.18,.99) both;
}

.kkn-book-turn-backward::after {
    transform: scaleX(-1);
}

@keyframes kknBookTurnForward {
    0%   { transform: rotateY(0deg) translateZ(0); filter: brightness(1); opacity: 1; }
    30%  { transform: rotateY(-30deg) translateZ(8px); filter: brightness(.99); opacity: 1; }
    62%  { transform: rotateY(-76deg) translateZ(13px); filter: brightness(.92); opacity: 1; }
    88%  { transform: rotateY(-113deg) translateZ(8px); filter: brightness(.82); opacity: .94; }
    100% { transform: rotateY(-132deg) translateZ(2px); filter: brightness(.78); opacity: 0; }
}

@keyframes kknBookTurnBackward {
    0%   { transform: rotateY(0deg) translateZ(0); filter: brightness(1); opacity: 1; }
    30%  { transform: rotateY(30deg) translateZ(8px); filter: brightness(.99); opacity: 1; }
    62%  { transform: rotateY(76deg) translateZ(13px); filter: brightness(.92); opacity: 1; }
    88%  { transform: rotateY(113deg) translateZ(8px); filter: brightness(.82); opacity: .94; }
    100% { transform: rotateY(132deg) translateZ(2px); filter: brightness(.78); opacity: 0; }
}

@keyframes kknBookFoldShadow {
    0%, 100% { opacity: 0; }
    28% { opacity: .25; }
    62% { opacity: .88; }
    82% { opacity: .56; }
}

/* Tablet */
@media (max-width: 991.98px) {
    .kkn-realbook-page {
        border-radius: 14px !important;
    }

    .kkn-book-nav {
        gap: 7px !important;
    }
}

/* Smartphone */
@media (max-width: 640px) {
    :root {
        --kkn-book-radius: 12px;
        --kkn-book-turn-duration: 580ms;
    }

    .kkn-book-toolbar {
        padding: 10px !important;
        margin-bottom: 10px !important;
    }

    .kkn-book-status-wrap {
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        gap: 8px !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    .kkn-book-page-status {
        font-size: 13px !important;
        min-width: 0 !important;
    }

    .kkn-book-group-select {
        min-height: 43px !important;
        font-size: 13px !important;
        margin-top: 8px !important;
    }

    .kkn-book-nav {
        gap: 5px !important;
        margin-top: 8px !important;
        margin-bottom: 10px !important;
    }

    .kkn-book-nav-btn {
        min-height: 42px !important;
        padding-left: 4px !important;
        padding-right: 4px !important;
        border-radius: 10px !important;
        font-size: 12px !important;
    }

    .kkn-book-stage {
        perspective: 1250px;
        padding-right: 5px;
        padding-bottom: 6px;
    }

    .kkn-realbook-page {
        width: 100% !important;
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        border-radius: 12px !important;
        box-shadow:
            0 2px 0 rgba(213, 202, 184, .86),
            0 4px 0 rgba(227, 218, 201, .75),
            0 10px 25px rgba(20, 43, 56, .12) !important;
    }

    .kkn-book-spine-decor {
        width: 9px;
        top: 6px;
        bottom: 6px;
    }

    .kkn-book-page-edge {
        right: -4px;
        width: 5px;
        top: 7px;
        bottom: 9px;
    }

    .kkn-book-bottom-edge {
        left: 9px;
        right: 3px;
        bottom: -4px;
        height: 5px;
    }

    .kkn-book-program-card {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }

    .kkn-book-field-row {
        display: grid !important;
        grid-template-columns: minmax(0, 1fr) !important;
        gap: 2px !important;
        margin-bottom: 10px !important;
    }

    .kkn-book-field-label {
        display: block !important;
        width: auto !important;
        min-width: 0 !important;
        max-width: none !important;
        font-size: 11px !important;
        line-height: 1.25 !important;
        font-weight: 700 !important;
    }

    .kkn-book-field-row > *:not(.kkn-book-field-label) {
        min-width: 0 !important;
        max-width: 100% !important;
        width: auto !important;
        overflow-wrap: anywhere;
        font-size: 13px !important;
        line-height: 1.48 !important;
    }
}

@media (max-width: 380px) {
    .kkn-book-nav {
        gap: 4px !important;
    }

    .kkn-book-nav-btn {
        min-height: 39px !important;
        font-size: 11px !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .kkn-book-turn-sheet,
    .kkn-book-turn-sheet::after {
        animation-duration: 1ms !important;
    }
}

/* =========================================================
   R2 READABILITY + MOBILE SCROLL HOTFIX
   2026-08-12
========================================================= */

/* Desktop/tablet: raise minimum reading size. The viewer may contain
   legacy utility classes with very small explicit font sizes, so these
   selectors deliberately establish a readable floor. */
.kkn-realbook-page {
    font-size: 16px !important;
    line-height: 1.58 !important;
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    overflow: visible !important;
    aspect-ratio: auto !important;
}

.kkn-realbook-page p,
.kkn-realbook-page li,
.kkn-realbook-page td,
.kkn-realbook-page th,
.kkn-realbook-page dt,
.kkn-realbook-page dd,
.kkn-realbook-page label,
.kkn-realbook-page blockquote {
    font-size: max(14px, .92em) !important;
    line-height: 1.58 !important;
}

.kkn-realbook-page small,
.kkn-realbook-page .small,
.kkn-realbook-page [class~="text-xs"],
.kkn-realbook-page [class~="text-sm"] {
    font-size: 13px !important;
    line-height: 1.45 !important;
}

.kkn-realbook-page h1 {
    font-size: clamp(30px, 2.4vw, 42px) !important;
    line-height: 1.15 !important;
}

.kkn-realbook-page h2 {
    font-size: clamp(26px, 2.05vw, 36px) !important;
    line-height: 1.18 !important;
}

.kkn-realbook-page h3 {
    font-size: clamp(19px, 1.35vw, 24px) !important;
    line-height: 1.25 !important;
}

.kkn-realbook-page h4,
.kkn-realbook-page h5 {
    font-size: clamp(16px, 1.08vw, 20px) !important;
    line-height: 1.28 !important;
}

.kkn-realbook-page .kkn-book-field-label {
    font-size: 13px !important;
}

.kkn-realbook-page .kkn-book-field-row > *:not(.kkn-book-field-label) {
    font-size: 15px !important;
    line-height: 1.55 !important;
}

/* Smartphone: selector-only header, no page numbers/status/prev-next UI.
   Swipe remains available, but ordinary vertical page scrolling wins. */
@media (max-width: 640px) {
    html[data-kkn-flipbook-realbook],
    html[data-kkn-flipbook-realbook] body {
        height: auto !important;
        min-height: 100% !important;
        max-height: none !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        overscroll-behavior-y: auto !important;
    }

    .kkn-book-toolbar.kkn-r2-mobile-compact {
        display: block !important;
        min-height: 0 !important;
        height: auto !important;
        padding: 8px !important;
        margin: 0 0 8px !important;
        border-radius: 12px !important;
    }

    .kkn-book-toolbar.kkn-r2-mobile-compact > * {
        display: none !important;
    }

    .kkn-book-toolbar.kkn-r2-mobile-compact > .kkn-r2-mobile-selector-only {
        display: block !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .kkn-r2-mobile-selector-only .kkn-book-group-select,
    .kkn-r2-mobile-selector-only select {
        display: block !important;
        width: 100% !important;
        max-width: 100% !important;
        min-height: 46px !important;
        margin: 0 !important;
        padding-top: 0 !important;
        padding-bottom: 0 !important;
        font-size: 15px !important;
        line-height: 1.3 !important;
    }

    .kkn-book-page-status,
    .kkn-book-status-wrap,
    .kkn-book-nav,
    .kkn-book-nav-btn,
    .kkn-r2-mobile-nav-extra {
        display: none !important;
    }

    .kkn-book-stage,
    .kkn-realbook-page,
    .kkn-r2-scroll-host,
    .kkn-r2-unclip {
        position: relative !important;
        height: auto !important;
        min-height: 0 !important;
        max-height: none !important;
        overflow: visible !important;
        overscroll-behavior-y: auto !important;
        touch-action: pan-y pinch-zoom !important;
        contain: none !important;
    }

    .kkn-book-stage {
        padding-top: 0 !important;
        margin-top: 0 !important;
    }

    .kkn-realbook-page {
        font-size: 16px !important;
        line-height: 1.62 !important;
    }

    .kkn-realbook-page p,
    .kkn-realbook-page li,
    .kkn-realbook-page td,
    .kkn-realbook-page th,
    .kkn-realbook-page dt,
    .kkn-realbook-page dd,
    .kkn-realbook-page label,
    .kkn-realbook-page blockquote {
        font-size: 15px !important;
        line-height: 1.62 !important;
    }

    .kkn-realbook-page small,
    .kkn-realbook-page .small,
    .kkn-realbook-page [class~="text-xs"],
    .kkn-realbook-page [class~="text-sm"] {
        font-size: 12.5px !important;
        line-height: 1.5 !important;
    }

    .kkn-realbook-page h1 {
        font-size: 28px !important;
    }

    .kkn-realbook-page h2 {
        font-size: 24px !important;
    }

    .kkn-realbook-page h3 {
        font-size: 19px !important;
    }

    .kkn-realbook-page h4,
    .kkn-realbook-page h5 {
        font-size: 16px !important;
    }

    .kkn-realbook-page .kkn-book-field-label {
        font-size: 12px !important;
    }

    .kkn-realbook-page .kkn-book-field-row > *:not(.kkn-book-field-label) {
        font-size: 15px !important;
        line-height: 1.58 !important;
    }

    /* A very tall cloned page is expensive on phones. Keep the book-turn
       visual to the visible reading area while preserving the paper effect. */
    .kkn-book-turn-sheet {
        max-height: 78vh !important;
        overflow: hidden !important;
    }
}

/* R2 JS applies this only to leaf-like text whose computed size is too small. */
.kkn-realbook-page .kkn-r2-readable-text {
    font-size: 14px !important;
    line-height: 1.52 !important;
}

@media (max-width: 640px) {
    .kkn-realbook-page .kkn-r2-readable-text {
        font-size: 15px !important;
        line-height: 1.58 !important;
    }
}

/* =========================================================
   R3 BOOK RING + GROUP DIVIDER + FRAME SAFETY
   2026-08-12
========================================================= */

:root {
    --kkn-r3-youth-blue: #246B8E;
    --kkn-r3-youth-teal: #159A9C;
    --kkn-r3-youth-coral: #E76F51;
    --kkn-r3-youth-violet: #7257A8;
    --kkn-r3-youth-gold: #E4AD35;
}

/* Top marker/status is no longer needed. The numbered navigation is the
   desktop/tablet page navigator. Page x of y is moved into the book divider. */
.kkn-r3-page-status-hidden,
.kkn-r3-status-cluster-hidden,
.kkn-r3-status-decor-hidden {
    display: none !important;
}

/* Keep the top toolbar focused on the group/village selector. */
.kkn-book-toolbar.kkn-r3-toolbar-clean {
    min-height: 0 !important;
    height: auto !important;
}

.kkn-book-toolbar.kkn-r3-toolbar-clean .kkn-book-group-select {
    margin-inline: auto !important;
}

/* Group divider: a youthful visual separator between navigator and book. */
.kkn-r3-group-divider {
    position: relative;
    z-index: 12;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .95fr) auto;
    align-items: center;
    gap: 10px;
    width: 100%;
    max-width: 100%;
    margin: 0 0 10px !important;
    padding: 10px 12px;
    border: 1px solid rgba(31, 75, 96, .12);
    border-radius: 14px;
    background:
        linear-gradient(105deg, rgba(36,107,142,.11), rgba(21,154,156,.08) 48%, rgba(231,111,81,.08));
    box-shadow: 0 7px 22px rgba(24, 57, 75, .06);
    overflow: hidden;
    box-sizing: border-box;
}

.kkn-r3-group-divider::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 5px;
    background: linear-gradient(180deg, var(--kkn-r3-youth-teal), var(--kkn-r3-youth-blue));
}

.kkn-r3-group-divider[data-kkn-group-accent="1"]::before {
    background: linear-gradient(180deg, #2A83A2, #4A62B3);
}
.kkn-r3-group-divider[data-kkn-group-accent="2"]::before {
    background: linear-gradient(180deg, #E76F51, #E4AD35);
}
.kkn-r3-group-divider[data-kkn-group-accent="3"]::before {
    background: linear-gradient(180deg, #7257A8, #D25C83);
}
.kkn-r3-group-divider[data-kkn-group-accent="4"]::before {
    background: linear-gradient(180deg, #159A9C, #73A942);
}

.kkn-r3-group-name,
.kkn-r3-theme,
.kkn-r3-page-count {
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
}

.kkn-r3-group-name {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: #18384d;
    font-size: 14px;
    line-height: 1.3;
    font-weight: 800;
    letter-spacing: .005em;
    overflow-wrap: anywhere;
}

.kkn-r3-group-name::before {
    content: "";
    flex: 0 0 9px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--kkn-r3-youth-coral);
    box-shadow: 0 0 0 4px rgba(231,111,81,.12);
}

.kkn-r3-theme {
    justify-self: start;
    display: inline-flex;
    align-items: center;
    min-height: 29px;
    max-width: 100%;
    padding: 5px 10px;
    border-radius: 999px;
    background: linear-gradient(100deg, rgba(36,107,142,.10), rgba(114,87,168,.10));
    color: #536677;
    font-size: 12px;
    line-height: 1.25;
    font-weight: 700;
    white-space: normal;
    overflow-wrap: anywhere;
}

.kkn-r3-page-count {
    justify-self: end;
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 5px 10px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid rgba(31, 69, 89, .12);
    color: #62727b;
    font-size: 12px;
    line-height: 1.2;
    font-weight: 800;
    white-space: nowrap;
    box-shadow: 0 3px 10px rgba(25,55,72,.04);
}

/* Book-ring binding. The stage reserves left room so the rings never force
   horizontal overflow. */
.kkn-book-stage.kkn-r3-ring-stage {
    padding-left: 22px !important;
}

.kkn-r3-ring-binding {
    position: absolute;
    z-index: 35;
    left: -17px;
    top: 6%;
    bottom: 6%;
    width: 34px;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    pointer-events: none;
}

.kkn-r3-ring {
    position: relative;
    display: block;
    width: 29px;
    height: 13px;
    border: 3px solid #8a979d;
    border-right-width: 4px;
    border-radius: 10px;
    background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(220,228,231,.92));
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,.95),
        0 2px 4px rgba(33,53,62,.18);
    transform: perspective(80px) rotateY(-8deg);
}

.kkn-r3-ring::after {
    content: "";
    position: absolute;
    right: -5px;
    top: 2px;
    width: 7px;
    height: 5px;
    border-radius: 3px;
    background: #68777e;
    opacity: .72;
}

/* Universal frame safety. Long URLs, chips, labels and legacy fixed-width
   children must stay inside the paper on phones. */
.kkn-realbook-page.kkn-r3-safe-frame,
.kkn-realbook-page.kkn-r3-safe-frame * {
    box-sizing: border-box;
}

.kkn-realbook-page.kkn-r3-safe-frame > *,
.kkn-realbook-page.kkn-r3-safe-frame article,
.kkn-realbook-page.kkn-r3-safe-frame section,
.kkn-realbook-page.kkn-r3-safe-frame div,
.kkn-realbook-page.kkn-r3-safe-frame header,
.kkn-realbook-page.kkn-r3-safe-frame footer,
.kkn-realbook-page.kkn-r3-safe-frame p,
.kkn-realbook-page.kkn-r3-safe-frame li,
.kkn-realbook-page.kkn-r3-safe-frame span,
.kkn-realbook-page.kkn-r3-safe-frame a,
.kkn-realbook-page.kkn-r3-safe-frame strong,
.kkn-realbook-page.kkn-r3-safe-frame small {
    min-width: 0;
    max-width: 100%;
}

.kkn-realbook-page.kkn-r3-safe-frame p,
.kkn-realbook-page.kkn-r3-safe-frame li,
.kkn-realbook-page.kkn-r3-safe-frame dd,
.kkn-realbook-page.kkn-r3-safe-frame td,
.kkn-realbook-page.kkn-r3-safe-frame th,
.kkn-realbook-page.kkn-r3-safe-frame a,
.kkn-realbook-page.kkn-r3-safe-frame span {
    overflow-wrap: anywhere;
    word-break: normal;
    hyphens: auto;
}

.kkn-realbook-page.kkn-r3-safe-frame table {
    width: 100% !important;
    max-width: 100% !important;
}

.kkn-realbook-page.kkn-r3-safe-frame pre,
.kkn-realbook-page.kkn-r3-safe-frame code {
    white-space: pre-wrap !important;
    overflow-wrap: anywhere !important;
    max-width: 100% !important;
}

@media (max-width: 991.98px) {
    .kkn-r3-group-divider {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .kkn-r3-theme {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .kkn-r3-page-count {
        grid-column: 2;
        grid-row: 1;
    }
}

@media (max-width: 640px) {
    /* Preserve the earlier mobile decision: the top header only contains
       the village/group selector. Numbered navigation remains hidden. */
    .kkn-book-nav,
    .kkn-book-nav-btn,
    .kkn-r3-page-status-hidden,
    .kkn-r3-status-cluster-hidden,
    .kkn-r3-status-decor-hidden {
        display: none !important;
    }

    .kkn-book-toolbar.kkn-r3-toolbar-clean {
        margin-bottom: 7px !important;
    }

    .kkn-r3-group-divider {
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 6px 8px;
        padding: 8px 9px 8px 12px;
        margin-bottom: 7px !important;
        border-radius: 11px;
    }

    .kkn-r3-group-name {
        font-size: 12.5px;
        line-height: 1.25;
    }

    .kkn-r3-group-name::before {
        flex-basis: 7px;
        width: 7px;
        height: 7px;
        box-shadow: 0 0 0 3px rgba(231,111,81,.10);
    }

    .kkn-r3-theme {
        grid-column: 1 / -1;
        padding: 4px 8px;
        min-height: 25px;
        border-radius: 9px;
        font-size: 10.5px;
        line-height: 1.3;
    }

    .kkn-r3-page-count {
        padding: 4px 8px;
        min-height: 25px;
        font-size: 10.5px;
    }

    .kkn-book-stage.kkn-r3-ring-stage {
        padding-left: 10px !important;
        padding-right: 4px !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    .kkn-r3-ring-binding {
        left: -7px;
        top: 5%;
        bottom: 5%;
        width: 20px;
    }

    .kkn-r3-ring {
        width: 18px;
        height: 9px;
        border-width: 2px;
        border-right-width: 3px;
        border-radius: 7px;
    }

    .kkn-r3-ring::after {
        right: -4px;
        top: 1px;
        width: 5px;
        height: 4px;
    }

    .kkn-realbook-page.kkn-r3-safe-frame {
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
    }

    .kkn-realbook-page.kkn-r3-safe-frame [class*="grid"],
    .kkn-realbook-page.kkn-r3-safe-frame [class*="flex"] {
        min-width: 0 !important;
        max-width: 100% !important;
    }

    .kkn-realbook-page.kkn-r3-safe-frame table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .kkn-realbook-page.kkn-r3-safe-frame img,
    .kkn-realbook-page.kkn-r3-safe-frame video,
    .kkn-realbook-page.kkn-r3-safe-frame iframe,
    .kkn-realbook-page.kkn-r3-safe-frame svg,
    .kkn-realbook-page.kkn-r3-safe-frame canvas {
        max-width: 100% !important;
        height: auto !important;
    }

    .kkn-realbook-page.kkn-r3-safe-frame button,
    .kkn-realbook-page.kkn-r3-safe-frame .badge,
    .kkn-realbook-page.kkn-r3-safe-frame [class*="badge"],
    .kkn-realbook-page.kkn-r3-safe-frame [class*="chip"],
    .kkn-realbook-page.kkn-r3-safe-frame [class*="tag"] {
        max-width: 100% !important;
        white-space: normal !important;
        overflow-wrap: anywhere !important;
    }
}

/* =========================================================
   KKN FLIPBOOK R5
   Desktop 90% + scroll INSIDE page + action navigation
   Mobile selector + arrows only
   ========================================================= */

:root {
    --kkn-r5-desktop-width: 90vw;
    --kkn-r5-page-height: 720px;
}

/* ---------------------------------------------------------
   SHARED: book shell must not clip the page scroll area
--------------------------------------------------------- */
.kkn-r5-wide {
    box-sizing: border-box !important;
}

.kkn-r5-stage {
    position: relative !important;
    overflow: visible !important;
    max-height: none !important;
    box-sizing: border-box !important;
}

.kkn-realbook-page.kkn-r5-scroll-page {
    position: relative !important;
    box-sizing: border-box !important;
    max-height: var(--kkn-r5-page-height) !important;
    height: var(--kkn-r5-page-height) !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y pan-x !important;
}

/* Page content may grow; the page itself becomes the scroll host. */
.kkn-realbook-page.kkn-r5-scroll-page .kkn-r5-inner-unclip {
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    overflow-y: visible !important;
    contain: none !important;
}

/* Make the scrollbar clear but unobtrusive. */
.kkn-realbook-page.kkn-r5-scroll-page {
    scrollbar-width: thin;
    scrollbar-color: rgba(30, 91, 105, .45) rgba(225, 236, 238, .62);
}

.kkn-realbook-page.kkn-r5-scroll-page::-webkit-scrollbar {
    width: 9px;
}

.kkn-realbook-page.kkn-r5-scroll-page::-webkit-scrollbar-track {
    background: rgba(225, 236, 238, .58);
    border-radius: 999px;
}

.kkn-realbook-page.kkn-r5-scroll-page::-webkit-scrollbar-thumb {
    background: rgba(30, 91, 105, .42);
    border-radius: 999px;
    border: 2px solid rgba(247, 250, 250, .9);
}

/* A very small fade at the bottom is an intuitive cue only when JS detects
   that the current page actually has more content below. */
.kkn-r5-stage.kkn-r5-has-page-overflow::after {
    content: "↓ scroll halaman";
    position: absolute;
    z-index: 48;
    left: 50%;
    bottom: 8px;
    transform: translateX(-50%);
    padding: 4px 9px;
    border-radius: 999px;
    background: rgba(255,255,255,.92);
    border: 1px solid rgba(26, 77, 92, .10);
    box-shadow: 0 4px 12px rgba(25, 59, 72, .08);
    color: #627780;
    font-size: 10px;
    font-weight: 750;
    line-height: 1;
    pointer-events: none;
    opacity: .90;
}

.kkn-r5-stage.kkn-r5-page-at-bottom::after {
    display: none;
}

/* ---------------------------------------------------------
   DESKTOP >= 992
--------------------------------------------------------- */
@media (min-width: 992px) {
    html[data-kkn-flipbook-r5],
    html[data-kkn-flipbook-r5] body {
        overflow-x: hidden !important;
    }

    /* 90% viewport, independent of legacy Bootstrap max-width. */
    .kkn-r5-wide {
        position: relative !important;
        left: 50% !important;
        transform: translateX(-50%) !important;
        width: var(--kkn-r5-desktop-width) !important;
        max-width: var(--kkn-r5-desktop-width) !important;
        min-width: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    .kkn-book-toolbar.kkn-r5-wide,
    .kkn-book-nav.kkn-r5-wide,
    .kkn-book-stage.kkn-r5-wide {
        box-sizing: border-box !important;
    }

    /* Desktop navigation stays authoritative and CLICKABLE. */
    .kkn-book-nav {
        display: grid !important;
        grid-template-columns: repeat(var(--kkn-book-page-count, 6), minmax(0, 1fr)) !important;
        gap: 8px !important;
        overflow: visible !important;
        pointer-events: auto !important;
        touch-action: manipulation !important;
        position: relative !important;
        z-index: 80 !important;
    }

    .kkn-book-nav .kkn-book-nav-btn {
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        pointer-events: auto !important;
        touch-action: manipulation !important;
        cursor: pointer !important;
        user-select: none;
        position: relative !important;
        z-index: 81 !important;
    }

    /* Only the content INSIDE a single page scrolls if it does not fit. */
    .kkn-realbook-page.kkn-r5-scroll-page {
        min-height: 560px !important;
    }

    /* Restore width safety after moving the shell to 90vw. */
    .kkn-realbook-page.kkn-r5-scroll-page,
    .kkn-realbook-page.kkn-r5-scroll-page * {
        box-sizing: border-box !important;
    }

    .kkn-realbook-page.kkn-r5-scroll-page img,
    .kkn-realbook-page.kkn-r5-scroll-page video,
    .kkn-realbook-page.kkn-r5-scroll-page iframe,
    .kkn-realbook-page.kkn-r5-scroll-page svg,
    .kkn-realbook-page.kkn-r5-scroll-page canvas {
        max-width: 100% !important;
    }
}

/* ---------------------------------------------------------
   MOBILE <= 640
   Top numbered navigation is hidden again.
   Only selector + prev/next arrows are shown.
--------------------------------------------------------- */
@media (max-width: 640px) {
    html[data-kkn-flipbook-r5],
    html[data-kkn-flipbook-r5] body {
        overflow-x: hidden !important;
    }

    /* R2/R3 decision restored: no numbered strip on phone. */
    .kkn-book-nav,
    .kkn-book-nav-btn,
    .kkn-r4-mobile-nav-shell,
    .kkn-r4-mobile-nav-guide,
    .kkn-r4-mobile-nav-arrow {
        display: none !important;
    }

    /* Header uses one compact row: arrow | village | arrow */
    .kkn-book-toolbar.kkn-r2-mobile-compact {
        padding: 8px !important;
        min-height: 0 !important;
        margin-bottom: 7px !important;
    }

    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar {
        display: grid !important;
        grid-template-columns: 36px minmax(0, 1fr) 36px !important;
        align-items: center !important;
        gap: 7px !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar .kkn-book-group-select,
    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar select {
        grid-column: 2 !important;
        width: 100% !important;
        min-width: 0 !important;
        max-width: 100% !important;
        min-height: 40px !important;
        margin: 0 !important;
        font-size: 12.5px !important;
        line-height: 1.2 !important;
        text-overflow: ellipsis;
    }

    .kkn-r5-mobile-arrow {
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        min-height: 36px !important;
        padding: 0 !important;
        margin: 0 !important;
        border: 1px solid rgba(27, 73, 89, .12) !important;
        border-radius: 10px !important;
        background: #fff !important;
        color: #174358 !important;
        box-shadow: 0 4px 12px rgba(23, 58, 72, .10);
        font-size: 24px !important;
        line-height: 1 !important;
        font-weight: 850 !important;
        cursor: pointer !important;
        touch-action: manipulation !important;
        z-index: 70 !important;
    }

    .kkn-r5-mobile-arrow--prev {
        grid-column: 1 !important;
        grid-row: 1 !important;
    }

    .kkn-r5-mobile-arrow--next {
        grid-column: 3 !important;
        grid-row: 1 !important;
    }

    .kkn-r5-mobile-arrow:disabled {
        opacity: .24 !important;
        box-shadow: none !important;
        cursor: default !important;
    }

    /* Single-page viewport. It scrolls internally only when needed. */
    .kkn-realbook-page.kkn-r5-scroll-page {
        min-height: 440px !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
    }

    .kkn-r5-stage.kkn-r5-has-page-overflow::after {
        bottom: 5px;
        font-size: 9.5px;
        padding: 4px 8px;
    }

    /* Ring remains visible but does not steal reading width. */
    .kkn-book-stage.kkn-r3-ring-stage {
        padding-left: 15px !important;
    }

    .kkn-r3-ring-binding {
        left: -11px !important;
        width: 24px !important;
    }

    .kkn-r3-ring {
        width: 21px !important;
        height: 11px !important;
        border-width: 2px !important;
    }

    /* Hard guard: no text/media can escape the paper frame. */
    .kkn-realbook-page.kkn-r5-scroll-page,
    .kkn-realbook-page.kkn-r5-scroll-page * {
        box-sizing: border-box !important;
        min-width: 0;
    }

    .kkn-realbook-page.kkn-r5-scroll-page p,
    .kkn-realbook-page.kkn-r5-scroll-page li,
    .kkn-realbook-page.kkn-r5-scroll-page td,
    .kkn-realbook-page.kkn-r5-scroll-page th,
    .kkn-realbook-page.kkn-r5-scroll-page dd,
    .kkn-realbook-page.kkn-r5-scroll-page a,
    .kkn-realbook-page.kkn-r5-scroll-page span,
    .kkn-realbook-page.kkn-r5-scroll-page strong {
        overflow-wrap: anywhere !important;
        word-break: normal !important;
        max-width: 100% !important;
    }

    .kkn-realbook-page.kkn-r5-scroll-page img,
    .kkn-realbook-page.kkn-r5-scroll-page video,
    .kkn-realbook-page.kkn-r5-scroll-page iframe,
    .kkn-realbook-page.kkn-r5-scroll-page svg,
    .kkn-realbook-page.kkn-r5-scroll-page canvas {
        max-width: 100% !important;
        height: auto;
    }

    .kkn-realbook-page.kkn-r5-scroll-page table {
        display: block;
        max-width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch;
    }
}

@media (max-width: 380px) {
    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar {
        grid-template-columns: 33px minmax(0, 1fr) 33px !important;
        gap: 5px !important;
    }

    .kkn-r5-mobile-arrow {
        width: 33px !important;
        height: 33px !important;
        min-width: 33px !important;
        min-height: 33px !important;
        font-size: 21px !important;
    }

    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar .kkn-book-group-select,
    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar select {
        font-size: 11.5px !important;
    }
}

/* =========================================================
   KKN FLIPBOOK R6
   Adaptive height + scroll for EVERY page
   - Short/medium pages shrink/expand naturally
   - Long pages scroll inside the paper
   - No forced fixed height
   - Desktop action navigation remains unchanged
   ========================================================= */

:root {
    --kkn-r6-page-cap: 760px;
    --kkn-r6-page-min: 420px;
}

/* Neutralize the R5 "always fixed height" behavior.
   R6 keeps only a maximum height, not a forced height. */
.kkn-realbook-page.kkn-r6-adaptive-scroll,
.kkn-realbook-page.kkn-r5-scroll-page.kkn-r6-adaptive-scroll {
    position: relative !important;
    box-sizing: border-box !important;

    height: auto !important;
    min-height: var(--kkn-r6-page-min) !important;
    max-height: var(--kkn-r6-page-cap) !important;

    overflow-y: auto !important;
    overflow-x: hidden !important;

    overscroll-behavior-y: contain !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-gutter: stable;
    touch-action: pan-y pan-x !important;
}

/* All pages can grow with their content up to the cap.
   Only content beyond the cap is scrollable. */
.kkn-realbook-page.kkn-r6-adaptive-scroll .kkn-r6-inner-unclip {
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    overflow-y: visible !important;
    overflow-x: visible;
    contain: none !important;
}

/* R5's old cue was calculated from only one page. Disable it;
   R6 uses the actual scrollbar on every page instead. */
.kkn-r5-stage.kkn-r5-has-page-overflow::after,
.kkn-r5-stage.kkn-r5-page-at-bottom::after {
    display: none !important;
}

/* Stage follows the currently rendered page instead of forcing a height. */
.kkn-book-stage.kkn-r6-stage,
.kkn-r5-stage.kkn-r6-stage {
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    overflow: visible !important;
}

/* Thin scrollbar is available on every page that needs it. */
.kkn-realbook-page.kkn-r6-adaptive-scroll {
    scrollbar-width: thin;
    scrollbar-color: rgba(29, 94, 105, .48) rgba(225, 236, 238, .48);
}

.kkn-realbook-page.kkn-r6-adaptive-scroll::-webkit-scrollbar {
    width: 9px;
}

.kkn-realbook-page.kkn-r6-adaptive-scroll::-webkit-scrollbar-track {
    background: rgba(225, 236, 238, .46);
    border-radius: 999px;
}

.kkn-realbook-page.kkn-r6-adaptive-scroll::-webkit-scrollbar-thumb {
    background: rgba(29, 94, 105, .44);
    border-radius: 999px;
    border: 2px solid rgba(250, 251, 248, .92);
}

/* If the page does not overflow, browsers usually suppress the scrollbar.
   No extra visual marker is forced. */

/* ---------------------------------------------------------
   DESKTOP
--------------------------------------------------------- */
@media (min-width: 992px) {
    :root {
        --kkn-r6-page-min: 420px;
    }

    /* Keep R5's 90vw layout and click/touch navigation.
       R6 only changes page-height/scroll behavior. */
    .kkn-realbook-page.kkn-r6-adaptive-scroll {
        width: 100% !important;
        max-width: 100% !important;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll,
    .kkn-realbook-page.kkn-r6-adaptive-scroll * {
        box-sizing: border-box !important;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll p,
    .kkn-realbook-page.kkn-r6-adaptive-scroll li,
    .kkn-realbook-page.kkn-r6-adaptive-scroll td,
    .kkn-realbook-page.kkn-r6-adaptive-scroll th,
    .kkn-realbook-page.kkn-r6-adaptive-scroll dd,
    .kkn-realbook-page.kkn-r6-adaptive-scroll a,
    .kkn-realbook-page.kkn-r6-adaptive-scroll span,
    .kkn-realbook-page.kkn-r6-adaptive-scroll strong {
        overflow-wrap: anywhere !important;
        max-width: 100% !important;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll img,
    .kkn-realbook-page.kkn-r6-adaptive-scroll video,
    .kkn-realbook-page.kkn-r6-adaptive-scroll iframe,
    .kkn-realbook-page.kkn-r6-adaptive-scroll svg,
    .kkn-realbook-page.kkn-r6-adaptive-scroll canvas {
        max-width: 100% !important;
        height: auto;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll table {
        max-width: 100% !important;
    }
}

/* ---------------------------------------------------------
   MOBILE
   Preserve R5 mobile UX: no numbered navigation, arrows only.
   R6 simply makes every page adaptive/scrollable.
--------------------------------------------------------- */
@media (max-width: 640px) {
    :root {
        --kkn-r6-page-min: 360px;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll {
        width: 100% !important;
        max-width: 100% !important;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll,
    .kkn-realbook-page.kkn-r6-adaptive-scroll * {
        box-sizing: border-box !important;
        min-width: 0;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll p,
    .kkn-realbook-page.kkn-r6-adaptive-scroll li,
    .kkn-realbook-page.kkn-r6-adaptive-scroll td,
    .kkn-realbook-page.kkn-r6-adaptive-scroll th,
    .kkn-realbook-page.kkn-r6-adaptive-scroll dd,
    .kkn-realbook-page.kkn-r6-adaptive-scroll a,
    .kkn-realbook-page.kkn-r6-adaptive-scroll span,
    .kkn-realbook-page.kkn-r6-adaptive-scroll strong {
        overflow-wrap: anywhere !important;
        word-break: normal !important;
        max-width: 100% !important;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll img,
    .kkn-realbook-page.kkn-r6-adaptive-scroll video,
    .kkn-realbook-page.kkn-r6-adaptive-scroll iframe,
    .kkn-realbook-page.kkn-r6-adaptive-scroll svg,
    .kkn-realbook-page.kkn-r6-adaptive-scroll canvas {
        max-width: 100% !important;
        height: auto;
    }

    .kkn-realbook-page.kkn-r6-adaptive-scroll table {
        display: block;
        max-width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch;
    }
}

/* =========================================================
   KKN FLIPBOOK R7
   Side-arrow navigation
   - Hide numbered page navigation on ALL devices
   - Navigation arrows sit at vertical center, left/right book edge
   - Mobile header returns to selector-only
   - Keep R6 adaptive per-page scrolling
   ========================================================= */

/* Hide the old numbered page navigation everywhere.
   Keep it in DOM so existing page actions remain callable by JS. */
.kkn-book-nav {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    overflow: hidden !important;
    clip: rect(0 0 0 0) !important;
    clip-path: inset(50%) !important;
    white-space: nowrap !important;
    border: 0 !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

/* Any previous mobile navigation arrows are removed/hidden.
   The selector remains the only toolbar control. */
.kkn-r5-mobile-arrow,
.kkn-r4-mobile-nav-shell,
.kkn-r4-mobile-nav-guide,
.kkn-r4-mobile-nav-arrow {
    display: none !important;
}

/* Mobile selector-only toolbar. */
@media (max-width: 640px) {
    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar {
        display: block !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar .kkn-book-group-select,
    .kkn-r2-mobile-selector-only.kkn-r5-mobile-controlbar select,
    .kkn-r2-mobile-selector-only .kkn-book-group-select,
    .kkn-r2-mobile-selector-only select {
        display: block !important;
        width: 100% !important;
        min-width: 0 !important;
        max-width: 100% !important;
        margin: 0 !important;
    }
}

/* Stage is the positioning anchor for the navigation arrows. */
.kkn-book-stage.kkn-r7-arrow-stage,
.kkn-r5-stage.kkn-r7-arrow-stage,
.kkn-r6-stage.kkn-r7-arrow-stage {
    position: relative !important;
}

/* Main left/right navigation controls. */
.kkn-r7-side-arrow {
    position: absolute !important;
    z-index: 120 !important;
    top: 50% !important;
    transform: translateY(-50%) !important;

    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;

    width: 52px !important;
    height: 52px !important;
    min-width: 52px !important;
    min-height: 52px !important;

    margin: 0 !important;
    padding: 0 !important;

    border: 1px solid rgba(23, 69, 85, .16) !important;
    border-radius: 999px !important;

    background: rgba(255, 255, 255, .96) !important;
    color: #173f55 !important;

    box-shadow:
        0 7px 20px rgba(22, 56, 70, .16),
        0 1px 0 rgba(255,255,255,.9) inset !important;

    font-size: 33px !important;
    font-weight: 850 !important;
    line-height: 1 !important;

    cursor: pointer !important;
    user-select: none !important;
    touch-action: manipulation !important;

    opacity: .96 !important;

    transition:
        transform .16s ease,
        box-shadow .16s ease,
        opacity .16s ease,
        background .16s ease !important;
}

.kkn-r7-side-arrow--prev {
    left: -26px !important;
}

.kkn-r7-side-arrow--next {
    right: -26px !important;
}

.kkn-r7-side-arrow:hover:not(:disabled) {
    background: #ffffff !important;
    box-shadow:
        0 10px 25px rgba(22, 56, 70, .22),
        0 1px 0 rgba(255,255,255,1) inset !important;
}

.kkn-r7-side-arrow:active:not(:disabled) {
    transform: translateY(-50%) scale(.94) !important;
}

.kkn-r7-side-arrow:focus-visible {
    outline: 3px solid rgba(25, 154, 156, .30) !important;
    outline-offset: 3px !important;
}

.kkn-r7-side-arrow:disabled {
    opacity: .22 !important;
    cursor: default !important;
    box-shadow: 0 3px 10px rgba(22, 56, 70, .08) !important;
}

/* Subtle side cue makes the control feel attached to a book edge. */
.kkn-r7-side-arrow::before {
    content: "";
    position: absolute;
    z-index: -1;
    top: 50%;
    width: 14px;
    height: 34px;
    transform: translateY(-50%);
    background: rgba(29, 88, 102, .08);
    border-radius: 999px;
}

.kkn-r7-side-arrow--prev::before {
    right: -9px;
}

.kkn-r7-side-arrow--next::before {
    left: -9px;
}

/* Desktop: keep arrows slightly outside the page so they do not cover content. */
@media (min-width: 992px) {
    .kkn-r7-side-arrow {
        width: 54px !important;
        height: 54px !important;
        min-width: 54px !important;
        min-height: 54px !important;
        font-size: 34px !important;
    }

    .kkn-r7-side-arrow--prev {
        left: -28px !important;
    }

    .kkn-r7-side-arrow--next {
        right: -28px !important;
    }
}

/* Tablet: pull controls a little closer to the page. */
@media (min-width: 641px) and (max-width: 991.98px) {
    .kkn-r7-side-arrow--prev {
        left: -18px !important;
    }

    .kkn-r7-side-arrow--next {
        right: -18px !important;
    }
}

/* Mobile: compact, readable, and positioned partly inside the safe area.
   This replaces top navigation and saves vertical space. */
@media (max-width: 640px) {
    .kkn-r7-side-arrow {
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        min-height: 40px !important;

        font-size: 26px !important;

        background: rgba(255,255,255,.94) !important;
        box-shadow: 0 5px 14px rgba(22,56,70,.16) !important;
    }

    .kkn-r7-side-arrow--prev {
        left: 2px !important;
    }

    .kkn-r7-side-arrow--next {
        right: 2px !important;
    }

    .kkn-r7-side-arrow::before {
        display: none;
    }

    /* Keep enough safe side space so arrow never covers text. */
    .kkn-realbook-page.kkn-r6-adaptive-scroll {
        padding-left: max(6px, env(safe-area-inset-left)) !important;
        padding-right: max(6px, env(safe-area-inset-right)) !important;
    }
}

/* =========================================================
   KKN FLIPBOOK R8
   Clean paper edge + compact header
   ========================================================= */

/* The decorative bottom paper-stack edge becomes visually incorrect when
   the page itself scrolls: it can appear across the middle of long content.
   Remove it on all pages. The side/spine treatment remains. */
.kkn-book-bottom-edge {
    display: none !important;
}

/* Hide any thin legacy/progress rail detected by R8 between toolbar and book.
   This is deliberately class-driven by JS, not a broad CSS selector. */
.kkn-r8-top-line-hidden {
    display: none !important;
}

/* Compact selector toolbar on desktop/tablet/mobile.
   Keep the selector centered, but remove the oversized white band. */
.kkn-book-toolbar,
.kkn-book-toolbar.kkn-r3-toolbar-clean,
.kkn-book-toolbar.kkn-r2-mobile-compact {
    min-height: 44px !important;
    height: auto !important;
    max-height: none !important;
    padding: 6px 10px !important;
    margin-bottom: 8px !important;
    border-radius: 12px !important;
    box-sizing: border-box !important;
}

.kkn-book-toolbar .kkn-book-group-select,
.kkn-book-toolbar select.kkn-book-group-select,
.kkn-book-toolbar select {
    min-height: 34px !important;
    height: 34px !important;
    max-height: 34px !important;
    padding-top: 4px !important;
    padding-bottom: 4px !important;
    font-size: 12px !important;
    line-height: 1.15 !important;
}

/* Desktop can be even tighter while retaining a comfortable click target. */
@media (min-width: 992px) {
    .kkn-book-toolbar,
    .kkn-book-toolbar.kkn-r3-toolbar-clean {
        min-height: 46px !important;
        padding-top: 6px !important;
        padding-bottom: 6px !important;
    }

    .kkn-book-toolbar .kkn-book-group-select,
    .kkn-book-toolbar select.kkn-book-group-select,
    .kkn-book-toolbar select {
        min-height: 34px !important;
        height: 34px !important;
    }
}

/* On phones preserve selector-only behavior from R7 and keep it compact. */
@media (max-width: 640px) {
    .kkn-book-toolbar,
    .kkn-book-toolbar.kkn-r3-toolbar-clean,
    .kkn-book-toolbar.kkn-r2-mobile-compact {
        min-height: 42px !important;
        padding: 5px 7px !important;
        margin-bottom: 6px !important;
        border-radius: 10px !important;
    }

    .kkn-book-toolbar .kkn-book-group-select,
    .kkn-book-toolbar select.kkn-book-group-select,
    .kkn-book-toolbar select {
        min-height: 32px !important;
        height: 32px !important;
        max-height: 32px !important;
        font-size: 11.5px !important;
    }
}

/* =========================================================
   KKN FLIPBOOK R9
   Persistent rings + slower page turn + paper sound support
   ========================================================= */

:root {
    /* R1/R8 was ~640ms. R9 deliberately slows the physical page turn
       so the book metaphor is visible without feeling sluggish. */
    --kkn-book-turn-duration: 1020ms;
}

/* The old R3 binding was attached to only one detected page.
   R9 replaces it with a binding attached to the BOOK STAGE so it persists
   on every page, including dynamically rendered pages. */
.kkn-r3-ring-binding {
    display: none !important;
}

.kkn-book-stage.kkn-r9-ring-stage {
    position: relative !important;
    padding-left: 24px !important;
}

.kkn-r9-ring-binding {
    position: absolute !important;
    z-index: 46 !important;

    left: -18px !important;
    top: 5% !important;
    bottom: 5% !important;
    width: 36px !important;

    display: flex !important;
    flex-direction: column !important;
    justify-content: space-around !important;
    align-items: center !important;

    pointer-events: none !important;
    user-select: none !important;
}

/* A subtle binding gutter behind the rings makes the left edge feel
   structurally attached to the paper without covering content. */
.kkn-r9-ring-binding::before {
    content: "";
    position: absolute;
    z-index: -2;
    left: 14px;
    top: 0;
    bottom: 0;
    width: 9px;
    border-radius: 999px;
    background:
        linear-gradient(
            90deg,
            rgba(127, 142, 144, .10),
            rgba(255,255,255,.52) 48%,
            rgba(91, 108, 112, .11)
        );
    box-shadow:
        inset 1px 0 1px rgba(255,255,255,.70),
        inset -1px 0 2px rgba(40,55,60,.08);
}

.kkn-r9-ring {
    position: relative !important;
    display: block !important;

    width: 31px !important;
    height: 14px !important;

    border: 3px solid rgba(129, 143, 145, .90) !important;
    border-right-color: rgba(92, 108, 111, .96) !important;
    border-radius: 999px !important;

    background: transparent !important;

    box-shadow:
        0 2px 3px rgba(32, 48, 54, .12),
        inset 0 1px 0 rgba(255,255,255,.70) !important;

    transform: rotate(-2deg);
}

.kkn-r9-ring:nth-child(even) {
    transform: rotate(2deg);
}

/* Paper hole / shadow where each ring meets the page. */
.kkn-r9-ring::after {
    content: "";
    position: absolute;
    right: 1px;
    top: 50%;
    transform: translate(54%, -50%);

    width: 7px;
    height: 7px;
    border-radius: 50%;

    background: rgba(99, 83, 59, .16);
    box-shadow:
        inset 0 1px 2px rgba(53, 42, 28, .22),
        0 0 0 2px rgba(255, 252, 244, .68);
}

/* Slower fold is supported by a softer shadow progression. */
.kkn-book-turn-sheet::after {
    animation-duration: var(--kkn-book-turn-duration) !important;
}

.kkn-book-turn-forward,
.kkn-book-turn-backward {
    animation-duration: var(--kkn-book-turn-duration) !important;
}

/* While a visual leaf is turning, reduce accidental rapid repeat taps
   without changing the underlying page-navigation action. */
html[data-kkn-flipbook-r9-turning="1"] .kkn-r7-side-arrow {
    opacity: .58 !important;
}

/* Smartphone: still slower than before, but slightly quicker than desktop. */
@media (max-width: 640px) {
    :root {
        --kkn-book-turn-duration: 920ms;
    }

    .kkn-book-stage.kkn-r9-ring-stage {
        padding-left: 17px !important;
    }

    .kkn-r9-ring-binding {
        left: -12px !important;
        width: 27px !important;
        top: 6% !important;
        bottom: 6% !important;
    }

    .kkn-r9-ring-binding::before {
        left: 10px;
        width: 7px;
    }

    .kkn-r9-ring {
        width: 23px !important;
        height: 11px !important;
        border-width: 2px !important;
    }

    .kkn-r9-ring::after {
        width: 5px;
        height: 5px;
    }
}

/* Respect the user's OS accessibility preference already used by R1. */
@media (prefers-reduced-motion: reduce) {
    .kkn-book-turn-sheet,
    .kkn-book-turn-sheet::after {
        animation-duration: 1ms !important;
    }
}

/* =========================================================
   KKN FLIPBOOK R11
   95% viewport-height viewer + floating group selector
   ========================================================= */

:root {
    --kkn-r11-viewer-height: 95vh;
    --kkn-r11-divider-height: 46px;
}

@supports (height: 1dvh) {
    :root {
        --kkn-r11-viewer-height: 95dvh;
    }
}

/* ---------------------------------------------------------
   REMOVE THE OLD WHITE GROUP-SELECTOR HEADER COMPLETELY
   The select itself is moved by JS into the book stage.
--------------------------------------------------------- */
.kkn-book-toolbar.kkn-r11-toolbar-removed {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
    min-height: 0 !important;
    max-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
    overflow: hidden !important;
}

/* ---------------------------------------------------------
   BOOK/STAGE = 95% VIEWPORT HEIGHT
--------------------------------------------------------- */
.kkn-book-stage.kkn-r11-max-screen-stage {
    position: relative !important;

    height: var(--kkn-r11-viewer-height) !important;
    min-height: var(--kkn-r11-viewer-height) !important;
    max-height: var(--kkn-r11-viewer-height) !important;

    overflow: visible !important;
    box-sizing: border-box !important;

    margin-top: 0 !important;
    margin-bottom: 0 !important;
}

/* Divider remains inside the 95% stage. */
.kkn-book-stage.kkn-r11-max-screen-stage > .kkn-r3-group-divider {
    min-height: var(--kkn-r11-divider-height) !important;
    height: var(--kkn-r11-divider-height) !important;
    max-height: var(--kkn-r11-divider-height) !important;

    margin: 0 0 6px !important;
    box-sizing: border-box !important;
}

/* The paper occupies all remaining height.
   If content is longer, scroll ONLY inside the paper. */
.kkn-book-stage.kkn-r11-max-screen-stage > .kkn-realbook-page,
.kkn-book-stage.kkn-r11-max-screen-stage > .kkn-realbook-page.kkn-r6-adaptive-scroll,
.kkn-book-stage.kkn-r11-max-screen-stage > .kkn-realbook-page.kkn-r5-scroll-page {
    height: calc(
        var(--kkn-r11-viewer-height)
        - var(--kkn-r11-divider-height)
        - 6px
    ) !important;

    min-height: 0 !important;

    max-height: calc(
        var(--kkn-r11-viewer-height)
        - var(--kkn-r11-divider-height)
        - 6px
    ) !important;

    overflow-y: auto !important;
    overflow-x: hidden !important;

    box-sizing: border-box !important;
    overscroll-behavior-y: contain !important;
    -webkit-overflow-scrolling: touch;
}

/* ---------------------------------------------------------
   FLOATING GROUP SELECTOR
   Sits over the centre of the identity divider, consumes
   no vertical document flow.
--------------------------------------------------------- */
.kkn-r11-floating-group {
    position: absolute !important;
    z-index: 150 !important;

    top: 6px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;

    display: flex !important;
    align-items: center !important;
    justify-content: center !important;

    width: min(300px, 34vw) !important;
    max-width: calc(100% - 420px) !important;

    margin: 0 !important;
    padding: 0 !important;

    pointer-events: auto !important;
}

.kkn-r11-floating-group .kkn-book-group-select,
.kkn-r11-floating-group select {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;

    height: 34px !important;
    min-height: 34px !important;
    max-height: 34px !important;

    margin: 0 !important;
    padding: 3px 34px 3px 12px !important;

    border: 1px solid rgba(23, 68, 84, .14) !important;
    border-radius: 999px !important;

    background-color: rgba(255,255,255,.96) !important;
    color: #294451 !important;

    box-shadow:
        0 5px 14px rgba(22, 56, 70, .10),
        0 1px 0 rgba(255,255,255,.9) inset !important;

    font-size: 11.5px !important;
    line-height: 1.1 !important;
    font-weight: 650 !important;
}

/* The old central theme badge is redundant in the floating-selector layout
   and would collide with the select. Group name + page count remain. */
.kkn-r3-group-divider.kkn-r11-floating-layout .kkn-r3-theme {
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

/* Keep left group label and right page count readable. */
.kkn-r3-group-divider.kkn-r11-floating-layout {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) minmax(320px, .9fr) minmax(0, 1fr) !important;
    align-items: center !important;
    column-gap: 12px !important;
    padding-left: 14px !important;
    padding-right: 14px !important;
}

.kkn-r3-group-divider.kkn-r11-floating-layout .kkn-r3-group-name {
    grid-column: 1 !important;
    justify-self: start !important;
    min-width: 0 !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
}

.kkn-r3-group-divider.kkn-r11-floating-layout .kkn-r3-page-count {
    grid-column: 3 !important;
    justify-self: end !important;
    white-space: nowrap !important;
}

/* Side arrows remain vertically centered on the maximized book. */
.kkn-book-stage.kkn-r11-max-screen-stage .kkn-r7-side-arrow {
    top: 50% !important;
}

/* Rings fill the maximized page height. */
.kkn-book-stage.kkn-r11-max-screen-stage .kkn-r9-ring-binding {
    top: 4% !important;
    bottom: 4% !important;
}

/* ---------------------------------------------------------
   DESKTOP
--------------------------------------------------------- */
@media (min-width: 992px) {
    .kkn-book-stage.kkn-r11-max-screen-stage {
        width: 90vw !important;
        max-width: 90vw !important;
    }
}

/* ---------------------------------------------------------
   TABLET / MOBILE
--------------------------------------------------------- */
@media (max-width: 991.98px) {
    .kkn-r11-floating-group {
        width: min(260px, 42vw) !important;
        max-width: calc(100% - 280px) !important;
    }

    .kkn-r3-group-divider.kkn-r11-floating-layout {
        grid-template-columns: minmax(0, 1fr) minmax(220px, .8fr) minmax(0, 1fr) !important;
    }
}

@media (max-width: 640px) {
    :root {
        --kkn-r11-divider-height: 42px;
    }

    .kkn-book-stage.kkn-r11-max-screen-stage {
        width: 100% !important;
        max-width: 100% !important;
    }

    /* On phones the floating selector becomes a compact top-centre pill.
       Group name is shortened/hidden to make room; page count remains. */
    .kkn-r11-floating-group {
        top: 5px !important;
        width: min(205px, 58vw) !important;
        max-width: 58vw !important;
    }

    .kkn-r11-floating-group .kkn-book-group-select,
    .kkn-r11-floating-group select {
        height: 32px !important;
        min-height: 32px !important;
        max-height: 32px !important;

        font-size: 10.5px !important;
        padding-left: 10px !important;
        padding-right: 28px !important;
    }

    .kkn-r3-group-divider.kkn-r11-floating-layout {
        grid-template-columns: 1fr auto !important;
        column-gap: 6px !important;
        padding-left: 9px !important;
        padding-right: 9px !important;
    }

    .kkn-r3-group-divider.kkn-r11-floating-layout .kkn-r3-group-name {
        opacity: 0 !important;
        visibility: hidden !important;
        width: 1px !important;
        overflow: hidden !important;
    }

    .kkn-r3-group-divider.kkn-r11-floating-layout .kkn-r3-page-count {
        grid-column: 2 !important;
        font-size: 9.5px !important;
    }

    /* Maximize content: arrows/rings remain but stay compact. */
    .kkn-book-stage.kkn-r11-max-screen-stage .kkn-r7-side-arrow {
        width: 38px !important;
        height: 38px !important;
        min-width: 38px !important;
        min-height: 38px !important;
    }
}