/* ============================================================
   Standalone 3D Yearbook Prototype
   All selectors are namespaced with ybx- to keep the current site safe.
   ============================================================ */

:root {
    --ybx-bg: #11100d;
    --ybx-bg-2: #191612;
    --ybx-ink: #201b16;
    --ybx-paper: #f4ead6;
    --ybx-paper-2: #eadcc2;
    --ybx-paper-3: #fbf4e7;
    --ybx-gold: #c99a55;
    --ybx-gold-2: #e0be7a;
    --ybx-green: #70856d;
    --ybx-rose: #7d3834;
    --ybx-blue: #53758a;
    --ybx-muted: #8d8375;
    --ybx-white: #fffaf0;
    --ybx-line: rgba(58, 46, 34, 0.16);
    --ybx-shadow: rgba(0, 0, 0, 0.35);
    --ybx-ease: cubic-bezier(0.2, 0.78, 0.2, 1);
    --ybx-page-ease: cubic-bezier(0.16, 0.76, 0.18, 1);
    --ybx-serif: "Playfair Display", Georgia, serif;
    --ybx-sans: "Inter", Arial, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    min-height: 100%;
    margin: 0;
    overflow-x: hidden;
    background:
        linear-gradient(125deg, rgba(112, 133, 109, 0.24), transparent 32%),
        linear-gradient(245deg, rgba(125, 56, 52, 0.18), transparent 30%),
        linear-gradient(180deg, var(--ybx-bg), var(--ybx-bg-2) 55%, #0d0b09);
    color: var(--ybx-white);
    font-family: var(--ybx-sans);
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
}

body.ybx-profile-open {
    overflow: hidden;
}

button,
a {
    font: inherit;
}

button {
    border: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

.ybx-noise {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.22;
    mix-blend-mode: soft-light;
    background-image:
        repeating-radial-gradient(circle at 17% 23%, rgba(255,255,255,0.18) 0 1px, transparent 1px 4px),
        repeating-linear-gradient(95deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 7px);
}

.ybx-stage-light {
    position: fixed;
    inset: -15% -10%;
    z-index: 0;
    pointer-events: none;
    background:
        linear-gradient(180deg, rgba(224, 190, 122, 0.22), transparent 38%),
        linear-gradient(118deg, transparent 8%, rgba(83, 117, 138, 0.14) 42%, transparent 74%),
        linear-gradient(248deg, transparent 10%, rgba(125, 56, 52, 0.16) 46%, transparent 78%);
    filter: blur(2px);
}

.ybx-loader {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: grid;
    place-items: center;
    background: #11100d;
    transition: opacity 620ms ease, visibility 620ms ease;
}

body.ybx-ready .ybx-loader {
    opacity: 0;
    visibility: hidden;
}

.ybx-loader-book {
    display: flex;
    gap: 4px;
    perspective: 500px;
}

.ybx-loader-book span {
    width: 24px;
    height: 36px;
    border-radius: 3px;
    background: linear-gradient(135deg, var(--ybx-paper), var(--ybx-gold-2));
    transform-origin: left center;
    animation: ybxLoaderPage 960ms var(--ybx-ease) infinite;
}

.ybx-loader-book span:nth-child(2) {
    animation-delay: 120ms;
}

.ybx-loader-book span:nth-child(3) {
    animation-delay: 240ms;
}

@keyframes ybxLoaderPage {
    0%, 100% { transform: rotateY(0deg); opacity: 0.55; }
    48% { transform: rotateY(-72deg); opacity: 1; }
}

.ybx-topbar {
    position: fixed;
    top: 18px;
    left: 18px;
    right: 18px;
    z-index: 20;
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
}

.ybx-brand,
.ybx-top-actions {
    pointer-events: auto;
}

.ybx-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    padding: 9px 14px 9px 9px;
    border: 1px solid rgba(255, 250, 240, 0.14);
    border-radius: 999px;
    background: rgba(17, 16, 13, 0.58);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(18px);
}

.ybx-brand-mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ybx-gold-2), var(--ybx-gold));
    color: #19120c;
    font-weight: 800;
    letter-spacing: 0;
}

.ybx-brand strong,
.ybx-brand small {
    display: block;
}

.ybx-brand strong {
    font-size: 0.88rem;
    letter-spacing: 0;
}

.ybx-brand small {
    color: rgba(255, 250, 240, 0.58);
    font-size: 0.68rem;
    margin-top: 1px;
}

.ybx-top-actions {
    display: flex;
    gap: 8px;
}

.ybx-icon-button,
.ybx-page-button {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    color: var(--ybx-white);
    background: rgba(17, 16, 13, 0.62);
    border: 1px solid rgba(255, 250, 240, 0.14);
    box-shadow: 0 16px 44px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(18px);
    cursor: pointer;
    transition: transform 220ms ease, background 220ms ease, color 220ms ease, opacity 220ms ease;
}

.ybx-icon-button:hover,
.ybx-page-button:hover {
    transform: translateY(-2px);
    color: var(--ybx-gold-2);
    background: rgba(32, 27, 22, 0.72);
}

.ybx-page-button:disabled {
    opacity: 0.34;
    pointer-events: none;
}

.ybx-experience {
    position: relative;
    z-index: 1;
    min-height: 100svh;
}

.ybx-book-stage {
    position: relative;
    display: flex;
    min-height: 100svh;
    align-items: center;
    justify-content: center;
    padding: 104px 28px 88px;
    perspective: 1800px;
}

.ybx-stage-copy {
    position: absolute;
    top: clamp(84px, 9vh, 120px);
    left: 50%;
    width: min(88vw, 760px);
    transform: translateX(-50%);
    text-align: center;
    pointer-events: none;
    transition: opacity 520ms ease, transform 520ms ease;
}

.ybx-stage-copy p {
    margin: 0 0 8px;
    color: var(--ybx-gold-2);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.ybx-stage-copy h1 {
    margin: 0;
    font-family: var(--ybx-serif);
    font-size: clamp(2rem, 6vw, 5.2rem);
    line-height: 0.92;
    letter-spacing: 0;
    text-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.ybx-book-stage.is-open .ybx-stage-copy {
    opacity: 0.34;
    transform: translateX(-50%) translateY(-18px) scale(0.92);
}

.ybx-book-scene {
    --tilt-x: 0deg;
    --tilt-y: 0deg;
    position: relative;
    display: grid;
    place-items: center;
    width: min(94vw, 1180px);
    height: clamp(460px, 58vw, 680px);
    margin-top: 42px;
    transform-style: preserve-3d;
    transform: rotateX(var(--tilt-x)) rotateY(var(--tilt-y));
    touch-action: pan-y;
    transition: transform 260ms ease;
}

/* 3D book opening animation */
.ybx-closed-book {
    position: absolute;
    width: min(52vw, 420px);
    aspect-ratio: 0.72;
    transform-style: preserve-3d;
    animation: ybxClosedFloat 5.4s ease-in-out infinite;
    transition: opacity 540ms ease, transform 780ms var(--ybx-ease), filter 540ms ease;
}

.ybx-closed-book::before,
.ybx-closed-book::after {
    content: "";
    position: absolute;
    pointer-events: none;
}

.ybx-closed-book::before {
    inset: 4% auto 4% -16px;
    width: 34px;
    border-radius: 18px 0 0 18px;
    background:
        linear-gradient(90deg, #050403, #211610 48%, #5c3d24 52%, #17100c);
    box-shadow:
        inset -7px 0 14px rgba(255, 250, 240, 0.08),
        -12px 18px 36px rgba(0, 0, 0, 0.34);
    transform: rotateY(88deg) translateZ(18px);
    transform-origin: right center;
}

.ybx-closed-book::after {
    inset: 7% -20px 7% auto;
    width: 32px;
    border-radius: 0 14px 14px 0;
    background:
        repeating-linear-gradient(to bottom, #fff3d8 0 4px, #d4c09b 4px 5px);
    box-shadow: 10px 18px 34px rgba(0, 0, 0, 0.28);
    transform: rotateY(-86deg) translateZ(16px);
    transform-origin: left center;
}

.ybx-book-stage.is-open .ybx-closed-book {
    opacity: 0;
    pointer-events: none;
    filter: blur(4px);
    transform: translateY(40px) rotateX(28deg) scale(0.8);
}

@keyframes ybxClosedFloat {
    0%, 100% { translate: 0 0; }
    50% { translate: 0 -12px; }
}

.ybx-book-depth {
    position: absolute;
    inset: 16px -12px -16px 18px;
    border-radius: 20px;
    background: linear-gradient(135deg, #2a2019, #0e0b09);
    box-shadow:
        0 50px 120px rgba(0, 0, 0, 0.58),
        22px 26px 0 rgba(255, 250, 240, 0.05);
    transform: translateZ(-34px);
}

.ybx-cover-board {
    position: absolute;
    inset: 0;
    overflow: hidden;
    border-radius: 20px;
    transform-origin: left center;
    transform-style: preserve-3d;
    background:
        linear-gradient(150deg, rgba(255,255,255,0.17), transparent 22%),
        linear-gradient(118deg, rgba(83,117,138,0.26), transparent 38%),
        linear-gradient(244deg, rgba(125,56,52,0.28), transparent 40%),
        linear-gradient(135deg, #241810, #111715 52%, #070605);
    box-shadow:
        inset 0 0 0 1px rgba(255, 250, 240, 0.12),
        inset 15px 0 30px rgba(0, 0, 0, 0.38),
        inset -8px 0 16px rgba(255, 250, 240, 0.06),
        0 45px 120px rgba(0, 0, 0, 0.55);
    transition: transform 1100ms var(--ybx-page-ease);
}

.ybx-book-stage.is-opening .ybx-cover-board {
    transform: rotateY(-78deg) translateZ(20px);
}

.ybx-cover-board::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 52px;
    background:
        linear-gradient(90deg, rgba(0,0,0,0.4), transparent),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 8px);
}

.ybx-cover-board::after {
    content: "";
    position: absolute;
    top: 6%;
    right: -10px;
    width: 26px;
    height: 88%;
    border-radius: 0 8px 8px 0;
    background: repeating-linear-gradient(
        to bottom,
        #f3e6cc 0 3px,
        #cbb998 3px 4px
    );
    filter: drop-shadow(8px 6px 12px rgba(0,0,0,0.28));
}

.ybx-cover-art {
    position: absolute;
    inset: 16px;
    border: 1px solid rgba(224, 190, 122, 0.48);
    border-radius: 14px;
    background:
        linear-gradient(90deg, transparent 0 18%, rgba(224,190,122,0.24) 18% 18.5%, transparent 18.5% 81.5%, rgba(224,190,122,0.24) 81.5% 82%, transparent 82%),
        linear-gradient(0deg, transparent 0 17%, rgba(224,190,122,0.22) 17% 17.5%, transparent 17.5% 82.5%, rgba(224,190,122,0.22) 82.5% 83%, transparent 83%),
        repeating-linear-gradient(45deg, rgba(255,250,240,0.035) 0 1px, transparent 1px 9px),
        linear-gradient(135deg, rgba(224,190,122,0.14), transparent 34%),
        linear-gradient(215deg, rgba(83,117,138,0.18), transparent 42%);
    opacity: 0.88;
    box-shadow:
        inset 0 0 0 1px rgba(255,250,240,0.08),
        inset 0 0 60px rgba(0,0,0,0.26);
}

.ybx-cover-sheen {
    position: absolute;
    inset: -45% -80%;
    background: linear-gradient(105deg, transparent 38%, rgba(255,255,255,0.28) 48%, transparent 58%);
    transform: translateX(-38%) rotate(8deg);
    animation: ybxCoverSheen 6.8s ease-in-out infinite;
}

@keyframes ybxCoverSheen {
    0%, 42% { transform: translateX(-38%) rotate(8deg); opacity: 0; }
    52% { opacity: 0.75; }
    68%, 100% { transform: translateX(38%) rotate(8deg); opacity: 0; }
}

.ybx-cover-content {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    padding: 44px;
    text-align: center;
}

.ybx-cover-content span {
    color: var(--ybx-gold-2);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.ybx-cover-content h2 {
    margin: 12px 0 8px;
    color: var(--ybx-white);
    font-family: var(--ybx-serif);
    font-size: clamp(2.1rem, 5vw, 3.9rem);
    line-height: 0.9;
    letter-spacing: 0;
}

.ybx-cover-content p {
    margin: 0;
    color: rgba(255, 250, 240, 0.72);
    font-size: 0.88rem;
    font-weight: 600;
}

.ybx-cover-seal {
    position: absolute;
    left: 50%;
    bottom: 34px;
    display: grid;
    place-items: center;
    width: 74px;
    height: 74px;
    border: 1px solid rgba(224, 190, 122, 0.5);
    border-radius: 50%;
    color: var(--ybx-gold-2);
    font-family: var(--ybx-serif);
    font-size: 1rem;
    font-weight: 900;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.2);
    box-shadow: inset 0 0 24px rgba(224, 190, 122, 0.12);
}

.ybx-open-book {
    position: absolute;
    display: grid;
    place-items: center;
    width: min(94vw, 1180px);
    aspect-ratio: 1.56;
    opacity: 0;
    pointer-events: none;
    transform-style: preserve-3d;
    transform: translateY(38px) rotateX(42deg) scale(0.88);
    transition: opacity 680ms ease, transform 920ms var(--ybx-ease);
}

.ybx-book-stage.is-open .ybx-open-book {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) rotateX(7deg) rotateZ(-0.25deg) scale(1);
}

.ybx-book-shadow {
    position: absolute;
    left: 4%;
    right: 4%;
    bottom: -6%;
    height: 18%;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    filter: blur(34px);
    transform: translateZ(-80px);
}

.ybx-book-spread {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    overflow: hidden;
    border-radius: 10px;
    cursor: grab;
    user-select: none;
    touch-action: pan-y;
}

.ybx-book-spread:active,
.ybx-book-spread.is-pageflip-busy {
    cursor: grabbing;
}

.ybx-page {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    overflow: hidden;
    color: var(--ybx-ink);
    background-color: #f7ecd7; /* Solid color for page-flip canvas backface */
    background-image:
        linear-gradient(145deg, rgba(255,255,255,0.62), transparent 35%),
        linear-gradient(180deg, var(--ybx-paper-3), var(--ybx-paper) 48%, var(--ybx-paper-2));
    border: 1px solid rgba(58, 46, 34, 0.18);
    box-shadow:
        inset 0 0 0 1px rgba(255,255,255,0.42),
        inset 0 -28px 36px rgba(117, 86, 48, 0.07);
    backface-visibility: hidden;
    transform-style: preserve-3d;
}

.ybx-page::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        linear-gradient(145deg, rgba(255,255,255,0.2), transparent 42%),
        linear-gradient(180deg, rgba(255,255,255,0.08), rgba(84, 58, 32, 0.045));
}

.ybx-page.ybx-flipbook-page {
    position: absolute;
    top: auto;
    left: auto;
    right: auto;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    background-color: var(--ybx-paper) !important;
    isolation: isolate;
}

.ybx-book-spread .stf__block {
    overflow: hidden;
    filter: none;
}

.ybx-book-spread .stf__item {
    position: absolute !important;
    box-sizing: border-box;
    background:
        linear-gradient(145deg, rgba(255,255,255,0.62), rgba(255,255,255,0.12) 35%),
        linear-gradient(180deg, var(--ybx-paper-3), var(--ybx-paper) 48%, var(--ybx-paper-2)) !important;
    background-color: var(--ybx-paper) !important;
    isolation: isolate;
    backface-visibility: hidden;
    overflow: hidden;
}

.ybx-book-spread .stf__item .ybx-page-inner {
    background-color: var(--ybx-paper);
}

.ybx-book-spread [data-student-id] {
    touch-action: manipulation;
}

.ybx-book-spread [data-student-id] > * {
    pointer-events: none;
}

.ybx-book-spread .stf__outerShadow,
.ybx-book-spread .stf__innerShadow,
.ybx-book-spread .stf__hardShadow,
.ybx-book-spread .stf__hardInnerShadow {
    pointer-events: none;
    mix-blend-mode: multiply;
}

.ybx-book-spread .stf__outerShadow,
.ybx-book-spread .stf__innerShadow {
    filter: blur(1.4px);
}

.ybx-book-spread .stf__hardShadow,
.ybx-book-spread .stf__hardInnerShadow {
    filter: blur(0.7px);
}

.ybx-page::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        repeating-linear-gradient(0deg, rgba(80,57,36,0.025) 0 1px, transparent 1px 11px),
        repeating-linear-gradient(90deg, rgba(80,57,36,0.018) 0 1px, transparent 1px 13px);
    mix-blend-mode: multiply;
}

.ybx-page-left,
.ybx-page-right {
    border-radius: 10px;
    transform-origin: center center;
}

.ybx-page-left {
    left: 0;
}

.ybx-page-right {
    right: 0;
}

.ybx-page-gutter {
    position: absolute;
    left: 50%;
    top: 0;
    z-index: 4;
    width: 46px;
    height: 100%;
    transform: translateX(-50%);
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(0,0,0,0.28), rgba(255,255,255,0.1) 48%, rgba(0,0,0,0.22)),
        repeating-linear-gradient(0deg, transparent 0 7px, rgba(255,255,255,0.07) 7px 8px);
    opacity: 0.7;
    filter: blur(0.2px);
}

.ybx-page-inner {
    position: relative;
    z-index: 2;
    height: 100%;
    padding: clamp(18px, 2.7vw, 34px);
    display: flex;
    flex-direction: column;
    gap: clamp(12px, 1.8vw, 20px);
}

.ybx-page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    min-height: 34px;
    border-bottom: 1px solid rgba(58, 46, 34, 0.12);
    padding-bottom: 10px;
}

.ybx-page-header span {
    color: var(--ybx-muted);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.ybx-page-header strong {
    color: rgba(32, 27, 22, 0.36);
    font-family: var(--ybx-serif);
    font-size: 1.15rem;
    line-height: 1;
}

.ybx-page-title {
    margin: 0;
    font-family: var(--ybx-serif);
    font-size: clamp(1.45rem, 2.9vw, 2.35rem);
    line-height: 0.98;
    letter-spacing: 0;
}

.ybx-page-lede {
    margin: 0;
    max-width: 38ch;
    color: rgba(32, 27, 22, 0.68);
    font-size: clamp(0.76rem, 1.2vw, 0.94rem);
}

.ybx-page-number {
    margin-top: auto;
    color: rgba(32, 27, 22, 0.36);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.ybx-opening-actions {
    position: absolute;
    left: 50%;
    bottom: clamp(28px, 8vh, 78px);
    z-index: 10;
    transform: translateX(-50%);
    transition: opacity 340ms ease, transform 340ms ease;
}

.ybx-book-stage.is-opening .ybx-opening-actions,
.ybx-book-stage.is-open .ybx-opening-actions {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(10px);
}

.ybx-open-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 54px;
    padding: 0 24px;
    border-radius: 999px;
    color: #19120c;
    background: linear-gradient(135deg, var(--ybx-gold-2), var(--ybx-gold));
    box-shadow:
        0 22px 58px rgba(201, 154, 85, 0.22),
        inset 0 1px 0 rgba(255,255,255,0.42);
    font-weight: 800;
    letter-spacing: 0;
    cursor: pointer;
    transition: transform 220ms ease, box-shadow 220ms ease;
}

.ybx-open-button:hover {
    transform: translateY(-3px);
    box-shadow:
        0 28px 68px rgba(201, 154, 85, 0.28),
        inset 0 1px 0 rgba(255,255,255,0.5);
}

.ybx-book-controls {
    position: absolute;
    left: 50%;
    bottom: 28px;
    z-index: 12;
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(12px);
    transition: opacity 420ms ease, transform 420ms ease;
}

.ybx-book-stage.is-open .ybx-book-controls {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.ybx-page-indicator {
    min-width: 132px;
    padding: 12px 16px;
    border: 1px solid rgba(255, 250, 240, 0.14);
    border-radius: 999px;
    color: rgba(255, 250, 240, 0.78);
    background: rgba(17, 16, 13, 0.62);
    box-shadow: 0 16px 44px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(18px);
    font-size: 0.78rem;
    font-weight: 800;
    text-align: center;
}

.ybx-memory-hero {
    position: relative;
    min-height: 34%;
    overflow: hidden;
    border-radius: 8px;
    background: #d8c6a7;
    box-shadow: 0 12px 26px rgba(70, 48, 25, 0.16);
}

.ybx-memory-hero img {
    width: 100%;
    height: 100%;
    min-height: 178px;
    object-fit: cover;
    transform: scale(1.02);
    filter: sepia(0.14) saturate(0.9);
}

.ybx-memory-hero figcaption {
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--ybx-white);
    background: rgba(32, 27, 22, 0.66);
    backdrop-filter: blur(12px);
    font-size: 0.74rem;
    font-weight: 700;
}

.ybx-memory-list,
.ybx-quote-list,
.ybx-note-list {
    display: grid;
    gap: 9px;
}

.ybx-memory-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ybx-memory-item,
.ybx-quote-card,
.ybx-friend-cluster,
.ybx-note {
    border: 1px solid rgba(58, 46, 34, 0.13);
    border-radius: 8px;
    background: rgba(255, 250, 240, 0.32);
    box-shadow: 0 10px 24px rgba(70, 48, 25, 0.08);
}

.ybx-memory-item {
    padding: 11px;
}

.ybx-memory-item strong {
    display: block;
    margin-bottom: 5px;
    color: var(--ybx-rose);
    font-size: 0.78rem;
}

.ybx-memory-item span,
.ybx-quote-card span,
.ybx-note span {
    display: block;
    color: rgba(32, 27, 22, 0.62);
    font-size: 0.7rem;
}

.ybx-student-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(8px, 1.2vw, 12px);
    align-content: start;
}

.ybx-intro-panel {
    position: relative;
    display: grid;
    min-height: 58%;
    align-content: center;
    padding: clamp(18px, 3vw, 34px);
    overflow: hidden;
    border: 1px solid rgba(58, 46, 34, 0.14);
    border-radius: 8px;
    background:
        linear-gradient(120deg, rgba(201,154,85,0.18), transparent 38%),
        linear-gradient(240deg, rgba(83,117,138,0.14), transparent 42%),
        rgba(255, 250, 240, 0.42);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.28), 0 16px 34px rgba(70, 48, 25, 0.1);
}

.ybx-intro-panel::before {
    content: "";
    position: absolute;
    inset: 13px;
    border: 1px solid rgba(201, 154, 85, 0.32);
    border-radius: 7px;
    pointer-events: none;
}

.ybx-intro-eyebrow {
    color: var(--ybx-rose);
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.ybx-intro-count {
    display: inline-grid;
    width: fit-content;
    margin-top: 22px;
    padding: 12px 16px;
    border: 1px solid rgba(58, 46, 34, 0.12);
    border-radius: 8px;
    background: rgba(255, 250, 240, 0.42);
}

.ybx-intro-count strong {
    font-family: var(--ybx-serif);
    font-size: 2.4rem;
    line-height: 0.9;
}

.ybx-intro-count span {
    margin-top: 4px;
    color: rgba(32, 27, 22, 0.58);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.ybx-intro-strip {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 8px;
}

.ybx-intro-avatar {
    position: relative;
    overflow: hidden;
    aspect-ratio: 0.8;
    border: 4px solid rgba(255, 250, 240, 0.78);
    border-radius: 8px;
    padding: 0;
    color: inherit;
    cursor: pointer;
    background:
        linear-gradient(135deg, rgba(255,255,255,0.24), transparent),
        var(--accent, var(--ybx-gold));
    box-shadow: 0 12px 24px rgba(70, 48, 25, 0.12);
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.ybx-intro-avatar:hover,
.ybx-intro-avatar:focus-visible {
    border-color: var(--accent, var(--ybx-gold));
    box-shadow: 0 18px 32px rgba(70, 48, 25, 0.22);
    outline: none;
    transform: translateY(-4px);
}

.ybx-intro-avatar::after {
    content: attr(data-initials);
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: rgba(255, 250, 240, 0.9);
    font-weight: 900;
}

.ybx-intro-avatar img {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ybx-graduate-grid {
    flex: 1;
    min-height: 0;
    grid-template-rows: repeat(3, minmax(0, 1fr));
    gap: clamp(7px, 1vw, 10px);
}

.ybx-student-card {
    position: relative;
    isolation: isolate;
    min-width: 0;
    padding: 8px;
    border: 1px solid rgba(58, 46, 34, 0.14);
    border-radius: 8px;
    color: var(--ybx-ink);
    background: rgba(255, 250, 240, 0.56);
    box-shadow: 0 12px 28px rgba(70, 48, 25, 0.1);
    cursor: pointer;
    text-align: left;
    transform: translateY(0) rotateZ(var(--tilt, 0deg));
    transition: transform 250ms var(--ybx-ease), box-shadow 250ms ease, background 250ms ease;
}

.ybx-graduate-card {
    display: grid;
    grid-template-rows: minmax(0, 1fr) auto auto;
    row-gap: 3px;
    overflow: hidden;
    padding: 7px;
}

.ybx-graduate-card .ybx-student-photo-frame {
    width: 100%;
    height: 100%;
    aspect-ratio: auto;
    min-height: 0;
}

.ybx-graduate-card .ybx-student-name {
    position: relative;
    z-index: 2;
    margin-top: 0;
    font-size: clamp(0.66rem, 0.92vw, 0.78rem);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ybx-graduate-card .ybx-student-role {
    position: relative;
    z-index: 2;
    margin-top: 0;
    font-size: clamp(0.55rem, 0.78vw, 0.64rem);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ybx-student-card::before {
    content: "";
    position: absolute;
    inset: 8px;
    z-index: -1;
    border-radius: 8px;
    opacity: 0;
    background: var(--accent, var(--ybx-gold));
    filter: blur(16px);
    transition: opacity 250ms ease;
}

.ybx-student-card:hover {
    transform: translateY(-7px) rotateZ(0deg);
    background: rgba(255, 250, 240, 0.86);
    box-shadow: 0 24px 38px rgba(70, 48, 25, 0.18);
}

.ybx-student-card:hover::before {
    opacity: 0.22;
}

.ybx-student-card:hover img {
    transform: translate3d(var(--img-x, 0), var(--img-y, 0), 0) scale(1.08);
}

.ybx-student-photo-frame,
.ybx-profile-photo-frame,
.ybx-gallery-photo {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(255,255,255,0.24), transparent),
        var(--accent, var(--ybx-gold));
}

.ybx-student-photo-frame {
    display: block;
    aspect-ratio: 0.82;
    border-radius: 6px;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.24);
}

.ybx-student-photo-frame::after,
.ybx-profile-photo-frame::after,
.ybx-gallery-photo::after {
    content: attr(data-initials);
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: rgba(255, 250, 240, 0.92);
    font-weight: 900;
    letter-spacing: 0;
}

.ybx-student-photo-frame img,
.ybx-profile-photo-frame img,
.ybx-gallery-photo img,
.ybx-profile-gallery img {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 320ms var(--ybx-ease), opacity 220ms ease;
}

.ybx-image-missing img {
    opacity: 0;
}

.ybx-student-name {
    display: block;
    margin-top: 8px;
    color: var(--ybx-ink);
    font-size: clamp(0.72rem, 1.05vw, 0.86rem);
    font-weight: 800;
    line-height: 1.1;
}

.ybx-student-role {
    display: block;
    margin-top: 3px;
    color: rgba(32, 27, 22, 0.56);
    font-size: clamp(0.62rem, 0.9vw, 0.72rem);
    font-weight: 700;
}

.ybx-friends-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.ybx-friend-cluster {
    padding: 13px;
}

.ybx-friend-cluster strong {
    display: block;
    color: var(--ybx-blue);
    font-size: 0.82rem;
    margin-bottom: 7px;
}

.ybx-avatar-row {
    display: flex;
    align-items: center;
    min-height: 34px;
}

.ybx-avatar-mini {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    margin-right: -8px;
    border: 2px solid var(--ybx-paper);
    border-radius: 50%;
    color: var(--ybx-white);
    background: var(--accent, var(--ybx-gold));
    font-size: 0.68rem;
    font-weight: 900;
}

.ybx-friend-cluster p {
    margin: 10px 0 0;
    color: rgba(32, 27, 22, 0.62);
    font-size: 0.7rem;
}

.ybx-quote-card {
    position: relative;
    padding: 13px 14px 13px 16px;
}

.ybx-quote-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    bottom: 12px;
    width: 4px;
    border-radius: 4px;
    background: var(--accent, var(--ybx-gold));
}

.ybx-quote-card p {
    margin: 0 0 7px;
    color: var(--ybx-ink);
    font-family: var(--ybx-serif);
    font-size: clamp(0.9rem, 1.55vw, 1.16rem);
    line-height: 1.12;
}

.ybx-gallery-mosaic {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    grid-auto-rows: minmax(72px, 1fr);
    gap: 10px;
    min-height: 0;
    flex: 1;
}

.ybx-gallery-photo {
    border-radius: 8px;
    min-height: 92px;
    box-shadow: 0 12px 28px rgba(70, 48, 25, 0.14);
}

.ybx-gallery-photo:nth-child(1) {
    grid-row: span 2;
}

.ybx-gallery-photo:nth-child(4) {
    grid-column: span 2;
}

.ybx-gallery-photo img {
    filter: sepia(0.08) saturate(0.95);
}

.ybx-note-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ybx-note {
    padding: 12px;
}

.ybx-note strong {
    display: block;
    color: var(--ybx-green);
    font-size: 0.8rem;
    margin-bottom: 6px;
}

/* Profile modal expansion and blurred viewing layer */
.ybx-profile-modal {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: grid;
    place-items: center end;
    padding: 24px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 260ms ease;
}

.ybx-profile-modal.is-open {
    pointer-events: auto;
    opacity: 1;
}

.ybx-profile-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 7, 6, 0.58);
    backdrop-filter: blur(12px);
    cursor: pointer;
}

.ybx-profile-panel {
    position: relative;
    width: min(94vw, 500px);
    max-height: min(880px, calc(100svh - 48px));
    overflow: auto;
    padding: 18px;
    border: 1px solid rgba(255, 250, 240, 0.18);
    border-radius: 18px;
    color: var(--ybx-white);
    background:
        linear-gradient(150deg, rgba(255,255,255,0.1), transparent 28%),
        rgba(24, 20, 16, 0.82);
    box-shadow: 0 42px 110px rgba(0, 0, 0, 0.58);
    backdrop-filter: blur(26px);
    transform: translateX(42px) scale(0.96);
    transition: transform 360ms var(--ybx-ease);
}

.ybx-profile-modal.is-open .ybx-profile-panel {
    transform: translateX(0) scale(1);
}

.ybx-profile-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 2;
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    color: var(--ybx-white);
    background: rgba(0, 0, 0, 0.28);
    cursor: pointer;
    transition: transform 180ms ease, background 180ms ease;
}

.ybx-profile-close:hover {
    transform: rotate(90deg);
    background: rgba(0, 0, 0, 0.42);
}

.ybx-profile-hero {
    display: grid;
    grid-template-columns: 142px minmax(0, 1fr);
    gap: 18px;
    align-items: end;
}

.ybx-profile-photo-frame {
    aspect-ratio: 0.82;
    border: 1px solid rgba(255, 250, 240, 0.18);
    border-radius: 12px;
    box-shadow: 0 20px 46px rgba(0,0,0,0.3);
}

.ybx-profile-heading span {
    display: block;
    color: var(--ybx-gold-2);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.ybx-profile-heading h2 {
    margin: 7px 40px 5px 0;
    font-family: var(--ybx-serif);
    font-size: clamp(2rem, 6vw, 3.1rem);
    line-height: 0.92;
    letter-spacing: 0;
}

.ybx-profile-heading p {
    margin: 0;
    color: rgba(255, 250, 240, 0.62);
    font-weight: 700;
}

.ybx-profile-panel blockquote {
    margin: 18px 0;
    padding: 16px 18px;
    border-left: 4px solid var(--profile-accent, var(--ybx-gold));
    border-radius: 8px;
    background: rgba(255, 250, 240, 0.08);
    color: rgba(255, 250, 240, 0.9);
    font-family: var(--ybx-serif);
    font-size: 1.25rem;
    line-height: 1.22;
}

.ybx-profile-grid {
    display: grid;
    grid-template-columns: 1fr 0.72fr;
    gap: 12px;
}

.ybx-profile-grid section,
.ybx-profile-section {
    padding: 14px;
    border: 1px solid rgba(255, 250, 240, 0.12);
    border-radius: 8px;
    background: rgba(255, 250, 240, 0.06);
}

.ybx-profile-grid h3,
.ybx-profile-section h3 {
    margin: 0 0 10px;
    color: var(--ybx-gold-2);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.ybx-friend-list {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.ybx-friend-pill {
    border: 0;
    padding: 7px 9px;
    border-radius: 999px;
    background: rgba(255, 250, 240, 0.1);
    color: rgba(255, 250, 240, 0.82);
    font-size: 0.76rem;
    font-weight: 700;
    cursor: pointer;
}

.ybx-social-list {
    display: flex;
    gap: 8px;
}

.ybx-social-list a {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 250, 240, 0.1);
    color: var(--ybx-white);
    transition: transform 180ms ease, color 180ms ease, background 180ms ease;
}

.ybx-social-list a:hover {
    transform: translateY(-2px);
    color: var(--ybx-gold-2);
    background: rgba(255, 250, 240, 0.16);
}

.ybx-profile-section {
    margin-top: 12px;
}

.ybx-profile-gallery {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.ybx-profile-gallery .ybx-gallery-photo {
    aspect-ratio: 1;
    min-height: 0;
    border-radius: 8px;
    box-shadow: none;
}

.ybx-profile-gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ybx-profile-section p {
    margin: 0;
    color: rgba(255, 250, 240, 0.76);
}

@media (max-width: 980px) {
    .ybx-book-stage {
        padding-left: 16px;
        padding-right: 16px;
    }

    .ybx-book-scene {
        height: clamp(420px, 65vw, 620px);
    }

    .ybx-memory-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ybx-graduate-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .ybx-friends-grid,
    .ybx-note-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    body {
        overflow-y: auto;
    }

    .ybx-topbar {
        top: 12px;
        left: 12px;
        right: 12px;
    }

    .ybx-brand {
        max-width: calc(100vw - 82px);
    }

    .ybx-brand strong {
        font-size: 0.78rem;
    }

    .ybx-brand small {
        display: none;
    }

    .ybx-book-stage {
        min-height: 100svh;
        justify-content: flex-start;
        padding: 94px 12px 92px;
    }

    .ybx-stage-copy {
        top: 76px;
    }

    .ybx-stage-copy p {
        font-size: 0.64rem;
    }

    .ybx-stage-copy h1 {
        font-size: clamp(2rem, 13vw, 3.4rem);
    }

    .ybx-book-scene {
        width: 100%;
        height: min(72svh, 690px);
        min-height: 560px;
        margin-top: 72px;
    }

    .ybx-closed-book {
        width: min(78vw, 360px);
    }

    .ybx-open-book {
        width: min(92vw, 430px);
        aspect-ratio: 0.72;
    }

    .ybx-page {
        width: 100%;
        border-radius: 10px;
    }

    .ybx-page-left {
        display: none;
    }

    .ybx-page-right {
        left: 0;
        right: auto;
    }

    .ybx-page-gutter {
        display: none;
    }

    .ybx-page-inner {
        padding: 18px;
    }

    .ybx-page-title {
        font-size: 1.65rem;
    }

    .ybx-memory-hero img {
        min-height: 150px;
    }

    .ybx-gallery-mosaic {
        grid-auto-rows: minmax(72px, 1fr);
    }

    .ybx-book-controls {
        bottom: 18px;
        gap: 8px;
    }

    .ybx-page-indicator {
        min-width: 108px;
        padding: 11px 12px;
        font-size: 0.7rem;
    }

    .ybx-page-button,
    .ybx-icon-button {
        width: 42px;
        height: 42px;
    }

    .ybx-profile-modal {
        place-items: end center;
        padding: 12px;
    }

    .ybx-profile-panel {
        width: 100%;
        max-height: calc(100svh - 24px);
        border-radius: 14px;
        transform: translateY(38px) scale(0.98);
    }

    .ybx-profile-modal.is-open .ybx-profile-panel {
        transform: translateY(0) scale(1);
    }

    .ybx-profile-hero {
        grid-template-columns: 112px minmax(0, 1fr);
        gap: 13px;
    }

    .ybx-profile-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 430px) {
    .ybx-book-scene {
        min-height: 590px;
    }

    .ybx-student-grid {
        gap: 7px;
    }

    .ybx-student-card {
        padding: 7px;
    }

    .ybx-student-name {
        font-size: 0.68rem;
    }

    .ybx-student-role {
        font-size: 0.58rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 1ms !important;
    }
}