/* ============================================================
   bio.css  –  Styles specific to the bio / about page
   Depends on: tokens.css, shared.css, animations.css
   ============================================================ */


/* ── Wrapper ────────────────────────────────────────────────── */

.ka-wrapper {
    position: relative;
    z-index: 1;
    max-width: 680px;
    margin: 0 auto;
    padding:
        clamp(60px, 10vh, 100px) clamp(20px, 6vw, 48px) clamp(80px, 12vh, 120px);
}

/* ── Back link ──────────────────────────────────────────────── */

.ka-back {
    display: inline-flex;
    align-items: center;
    gap: var(--ka-space-2);
    color: var(--ka-text-muted);
    font-size: var(--ka-text-sm);
    font-weight: 500;
    margin-bottom: var(--ka-space-12);
    transition: color var(--ka-transition);
}

.ka-back:hover {
    color: var(--ka-accent-light);
}

.ka-back svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ── HERO ───────────────────────────────────────────────────── */

.ka-bio-hero {
    text-align: center;
    margin-bottom: var(--ka-space-16);
}

.ka-bio-hero__ring {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: var(--ka-gradient);
    padding: 3px;
    margin: 0 auto 28px;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ka-ease) 0.1s forwards;
}

.ka-bio-hero__ring::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    background: var(--ka-gradient);
    opacity: 0.15;
    filter: blur(20px);
    animation: heroGlow 3s ease-in-out infinite alternate;
    z-index: -1;
}

.ka-bio-hero__img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    display: block;
}

.ka-bio-hero__name {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-3xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: var(--ka-leading-tight);
    margin-bottom: 10px;
    background: var(--ka-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ka-ease) 0.2s forwards;
}

.ka-bio-hero__tagline {
    color: var(--ka-text-secondary);
    font-size: var(--ka-text-md);
    font-weight: 500;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ka-ease) 0.3s forwards;
}

.ka-bio-hero__meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: var(--ka-space-4);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ka-ease) 0.4s forwards;
}

.ka-bio-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--ka-text-faint);
    padding: 5px var(--ka-space-3);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius-pill);
}

.ka-bio-hero__badge svg {
    width: 13px;
    height: 13px;
    stroke: var(--ka-accent-light);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ── SECTIONS ───────────────────────────────────────────────── */

.ka-section-sep {
    margin-bottom: 56px;
}

.ka-bio-section {
    margin-bottom: 56px;
    opacity: 0;
    transform: translateY(24px);
    position: relative;
}

.ka-bio-section.is-visible {
    animation: fadeUp 0.7s var(--ka-ease) forwards;
}

.ka-bio-section__title {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-xl);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 14px;
    text-align: center;
    background: linear-gradient(180deg, #ffffff 20%, rgba(255, 255, 255, 0.65) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ka-bio-section__sub {
    color: var(--ka-text-muted);
    font-size: 14px;
    line-height: var(--ka-leading-normal);
    margin-bottom: 28px;
    text-align: center;
    max-width: 340px;
    margin-left: auto;
    margin-right: auto;
}

.ka-bio-section__text,
.ka-bio-section__text p {
    text-align: center;
}

/* Text block that precedes a widget — needs gap below */
.ka-bio-section__text:not(:last-child) {
    margin-bottom: var(--ka-space-8);
}

/* ── STACKED CARDS ──────────────────────────────────────────── */

.ka-stack {
    position: relative;
    padding: 0;
    overflow: visible;
}

.ka-stack__stage {
    position: relative;
    height: 290px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
}

.ka-stack__card {
    position: absolute !important;
    width: calc(100vw - 52px);
    max-width: 300px;
    aspect-ratio: 1 / 1;
    transform-origin: center bottom;
    touch-action: pan-y;
    cursor: grab;
    will-change: transform, opacity;
    transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.35s ease;
    padding: 28px var(--ka-space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99, 102, 241, 0.08) 0%, transparent 70%),
        var(--ka-surface);
    border: 1px solid var(--ka-border-light);
    border-radius: var(--ka-radius-xl);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}

.ka-stack__card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 3px;
    background: linear-gradient(180deg, #6366f1 0px, #a78bfa 4px, rgba(167, 139, 250, 0.35) 16px, transparent 34px);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    filter: drop-shadow(0 1px 6px rgba(99, 102, 241, 0.45));
    pointer-events: none;
    z-index: 1;
}

.ka-stack__card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, transparent 40%);
    pointer-events: none;
}

.ka-stack__card:hover {
    transform: none;
}

.ka-stack__card.is-center {
    cursor: grab;
}

.ka-stack__card.is-dragging {
    transition: none !important;
    cursor: grabbing !important;
}

.ka-stack__card .ka-person__emoji {
    font-size: var(--ka-text-2xl);
    margin-bottom: var(--ka-space-3);
    display: block;
    text-align: center;
    filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.3));
}

.ka-stack__card .ka-person__name {
    font-size: var(--ka-text-xs);
    color: var(--ka-accent-light);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--ka-space-1);
    text-align: center;
}

.ka-stack__card .ka-person__role {
    font-family: var(--ka-font-heading);
    font-weight: 800;
    font-size: var(--ka-text-lg);
    margin-bottom: 10px;
    text-align: center;
    letter-spacing: -0.02em;
}

.ka-stack__card .ka-person__desc {
    color: var(--ka-text-muted);
    font-size: var(--ka-text-sm);
    line-height: 1.7;
    text-align: center;
}

.ka-stack__card .ka-stack__hint {
    position: absolute;
    top: var(--ka-space-5);
    width: 16px;
    height: 16px;
    stroke: var(--ka-text-faint);
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.ka-stack__card.is-center .ka-stack__hint {
    opacity: 1;
}

.ka-stack__hint--left {
    left: var(--ka-space-2);
}

.ka-stack__hint--right {
    right: var(--ka-space-2);
}

.ka-stack__dots {
    display: flex;
    gap: 6px;
    justify-content: center;
    align-items: center;
    margin-top: var(--ka-space-10);
}

.ka-stack__dot {
    width: 6px;
    height: 6px;
    border-radius: 3px;
    border: none;
    padding: 0;
    background: rgba(99, 102, 241, 0.25);
    cursor: pointer;
    opacity: 0.45;
    transition: width 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease, opacity 0.3s ease;
}

.ka-stack__dot.is-active {
    width: 26px;
    background: var(--ka-accent);
    opacity: 1;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.45);
}


/* ── HOBBY MARQUEE ──────────────────────────────────────────── */

.ka-hobby-marquee {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    overflow: hidden;
    position: relative;
    padding: var(--ka-space-6) 0;
}

.ka-hobby-marquee::before,
.ka-hobby-marquee::after {
    display: none;
}

.ka-hobby-track {
    display: flex;
    width: max-content;
    gap: var(--ka-space-4);
    animation: hobbyScroll 50s linear infinite;
}

.ka-hobby-item {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px var(--ka-space-4) 10px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius-pill);
    transition: border-color var(--ka-transition), background var(--ka-transition), transform var(--ka-transition);
}

.ka-hobby-item:hover {
    border-color: rgba(99, 102, 241, 0.3);
    background: rgba(99, 102, 241, 0.06);
    transform: translateY(-2px);
}

.ka-hobby-item__icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background var(--ka-transition);
}

.ka-hobby-item__icon svg {
    width: 14px;
    height: 14px;
    stroke: var(--ka-accent-light);
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    opacity: 0.85;
    transition: opacity var(--ka-transition);
}

.ka-hobby-item:hover .ka-hobby-item__icon {
    background: rgba(99, 102, 241, 0.18);
}

.ka-hobby-item:hover .ka-hobby-item__icon svg {
    opacity: 1;
}

.ka-hobby-item__label {
    font-size: 12px;
    font-weight: 500;
    color: var(--ka-text-secondary);
    white-space: nowrap;
    letter-spacing: 0.01em;
}


/* ── VISION CARD ────────────────────────────────────────────── */

.ka-vision {
    position: relative;
    padding: var(--ka-space-8) var(--ka-space-6) var(--ka-space-8);
    border-radius: var(--ka-radius-xl);
    overflow: hidden;
    background: var(--ka-surface);
}

.ka-vision::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1.5px;
    background: conic-gradient(from var(--vision-angle, 0deg), #6366f1, #a78bfa, #818cf8, #6366f1);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: visionSpin 6s linear infinite;
}

.ka-vision::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    pointer-events: none;
    animation: visionGlow 4s ease-in-out infinite alternate;
}

/* visionGlow is local to this page — not in animations.css */
@keyframes visionGlow {
    0% {
        opacity: 0.4;
    }

    100% {
        opacity: 1;
    }
}

.ka-vision__content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.ka-vision__label {
    font-size: var(--ka-text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ka-accent-light);
    margin-bottom: var(--ka-space-4);
}

.ka-vision__number {
    font-family: var(--ka-font-heading);
    font-size: 72px;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
    background: var(--ka-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--ka-space-1);
    animation: visionPulse 3s ease-in-out infinite;
}

.ka-vision__goal {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-md);
    font-weight: 700;
    color: var(--ka-text);
    margin-bottom: var(--ka-space-5);
}

.ka-vision__progress {
    margin-bottom: var(--ka-space-4);
}

.ka-vision__progress-bar {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
    position: relative;
}

.ka-vision__progress-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--ka-gradient);
    width: 65%;
    position: relative;
    animation: pulse 3s ease-in-out infinite;
}

.ka-vision__progress-fill::after {
    content: '';
    position: absolute;
    right: 0;
    top: -3px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--ka-accent-light);
    box-shadow: 0 0 12px var(--ka-accent), 0 0 24px rgba(99, 102, 241, 0.3);
    animation: dotPulse 2s ease-in-out infinite;
}

.ka-vision__progress-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--ka-space-2);
    font-size: var(--ka-text-xs);
    color: var(--ka-text-faint);
    font-weight: 500;
}

.ka-vision__sub {
    color: var(--ka-text-muted);
    font-size: var(--ka-text-sm);
    font-style: italic;
}

.ka-vision__particle {
    position: absolute;
    border-radius: 50%;
    background: var(--ka-accent);
    opacity: 0;
    pointer-events: none;
    animation: particleFloat 8s ease-in-out infinite;
}

.ka-vision__particle:nth-child(1) {
    width: 4px;
    height: 4px;
    left: 15%;
    top: 20%;
    animation-delay: 0s;
}

.ka-vision__particle:nth-child(2) {
    width: 3px;
    height: 3px;
    right: 20%;
    top: 30%;
    animation-delay: 2s;
}

.ka-vision__particle:nth-child(3) {
    width: 5px;
    height: 5px;
    left: 25%;
    bottom: 25%;
    animation-delay: 4s;
}

.ka-vision__particle:nth-child(4) {
    width: 3px;
    height: 3px;
    right: 15%;
    bottom: 35%;
    animation-delay: 6s;
}


/* ── MINI SHELF WIDGET ──────────────────────────────────────── */

/* ── Shelf widget (glassmorphism card) ───────────────────── */

.ka-shelf-widget {
    position: relative;
    cursor: pointer;
    transition: transform var(--ka-transition);
}

.ka-shelf-widget:hover {
    transform: translateY(-3px);
}

.ka-shelf-widget__card {
    position: relative;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.055) 0%, rgba(255, 255, 255, 0.022) 100%);
    backdrop-filter: blur(32px);
    -webkit-backdrop-filter: blur(32px);
    border-radius: var(--ka-radius-xl);
    padding: 28px 28px 26px;
    overflow: visible;
    border: 1px solid rgba(255, 255, 255, 0.09);
    box-shadow:
        0 1px 0 0 rgba(255, 255, 255, 0.08) inset,
        0 24px 64px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(0, 0, 0, 0.25);
    transition: box-shadow var(--ka-transition), border-color var(--ka-transition);
}

/* Ambient glow blob behind books */
.ka-shelf-widget__glow {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 260px;
    height: 130px;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(99, 102, 241, 0.16) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.5;
    transition: opacity var(--ka-transition);
}

.ka-shelf-widget:hover .ka-shelf-widget__glow {
    opacity: 1;
}

/* Top highlight shimmer */
.ka-shelf-widget__card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.13), transparent);
    pointer-events: none;
}

/* Gradient border revealed on hover */
.ka-shelf-widget__card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg,
            rgba(99, 102, 241, 0.55) 0%,
            rgba(139, 92, 246, 0.35) 35%,
            rgba(99, 102, 241, 0.1) 60%,
            rgba(217, 119, 6, 0.35) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s var(--ka-ease);
}

.ka-shelf-widget:hover .ka-shelf-widget__card {
    box-shadow:
        0 1px 0 0 rgba(255, 255, 255, 0.1) inset,
        0 32px 80px rgba(0, 0, 0, 0.45),
        0 0 60px rgba(99, 102, 241, 0.1),
        0 0 0 1px rgba(0, 0, 0, 0.25);
    border-color: rgba(255, 255, 255, 0.13);
}

.ka-shelf-widget:hover .ka-shelf-widget__card::before {
    opacity: 1;
}

.ka-shelf-widget__header {
    display: flex;
    align-items: center;
    gap: 14px;
}

.ka-shelf-widget__icon {
    width: 46px;
    height: 46px;
    border-radius: 13px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.22), rgba(139, 92, 246, 0.12));
    border: 1px solid rgba(99, 102, 241, 0.22);
    display: grid;
    place-items: center;
    flex-shrink: 0;
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.12), 0 0 0 1px rgba(99, 102, 241, 0.06) inset;
}

.ka-shelf-widget__icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--ka-accent-light);
    fill: none;
    stroke-width: 1.4;
    stroke-linecap: round;
    stroke-linejoin: round;
    filter: drop-shadow(0 0 5px rgba(99, 102, 241, 0.4));
}

.ka-shelf-widget__title {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-md);
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--ka-text);
    line-height: 1.2;
}

.ka-shelf-widget__sub {
    font-size: 12px;
    color: var(--ka-text-muted);
    margin-top: 3px;
}

/* Gold count pill */
.ka-shelf-widget__count {
    margin-left: auto;
    height: 28px;
    min-width: 44px;
    padding: 0 12px;
    border-radius: var(--ka-radius-pill);
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
    font-family: var(--ka-font-heading);
    font-size: 12px;
    font-weight: 800;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    box-shadow: 0 2px 12px rgba(245, 158, 11, 0.35), 0 1px 0 rgba(255, 255, 255, 0.2) inset;
    letter-spacing: 0.02em;
}

/* Section divider */
.ka-shelf-widget__divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.07), transparent);
    margin: 24px 0;
}

/* Fanned book covers */
.ka-shelf-widget__covers {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    height: 104px;
    position: relative;
    margin-bottom: 32px;
    overflow: visible;
}

.ka-shelf-widget__cover {
    width: 62px;
    height: 94px;
    border-radius: 3px 7px 7px 3px;
    position: absolute;
    bottom: 0;
    box-shadow: -1px 0 0 rgba(0, 0, 0, 0.3), 4px 8px 28px rgba(0, 0, 0, 0.6);
    transition: transform 0.45s var(--ka-ease);
    overflow: hidden;
}

/* Gloss highlight */
.ka-shelf-widget__cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 55%, rgba(0, 0, 0, 0.08) 100%);
    pointer-events: none;
}

/* Spine shadow */
.ka-shelf-widget__cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 5px;
    background: rgba(0, 0, 0, 0.28);
    z-index: 1;
}

.ka-shelf-widget__cover--1 {
    background: linear-gradient(160deg, #818cf8, #4338ca, #312e81);
    transform: rotate(-14deg) translateX(-52px) translateY(6px);
    z-index: 1;
}

.ka-shelf-widget__cover--2 {
    background: linear-gradient(160deg, #fbbf24, #d97706, #92400e);
    transform: rotate(-5deg) translateX(-16px) translateY(0px);
    z-index: 3;
}

.ka-shelf-widget__cover--3 {
    background: linear-gradient(160deg, #a78bfa, #7c3aed, #4c1d95);
    transform: rotate(5deg) translateX(16px) translateY(0px);
    z-index: 2;
}

.ka-shelf-widget__cover--4 {
    background: linear-gradient(160deg, #6ee7b7, #059669, #064e3b);
    transform: rotate(14deg) translateX(52px) translateY(6px);
    z-index: 1;
}

.ka-shelf-widget:hover .ka-shelf-widget__cover--1 {
    transform: rotate(-19deg) translateX(-62px) translateY(-14px);
}

.ka-shelf-widget:hover .ka-shelf-widget__cover--2 {
    transform: rotate(-6deg) translateX(-18px) translateY(-18px);
}

.ka-shelf-widget:hover .ka-shelf-widget__cover--3 {
    transform: rotate(6deg) translateX(18px) translateY(-16px);
}

.ka-shelf-widget:hover .ka-shelf-widget__cover--4 {
    transform: rotate(19deg) translateX(62px) translateY(-12px);
}

/* Genre tags */
.ka-shelf-widget__genres {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 22px;
    flex-wrap: wrap;
    position: relative;
    z-index: 10;
}

.ka-shelf-widget__genre {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--ka-text-muted);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--ka-radius-pill);
    padding: 3px 10px;
}

/* Footer */
.ka-shelf-widget__footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--ka-accent-light);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: -0.01em;
    transition: gap var(--ka-transition);
}

.ka-shelf-widget__footer svg {
    width: 15px;
    height: 15px;
    stroke: var(--ka-accent-light);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 0.3s ease;
}

.ka-shelf-widget:hover .ka-shelf-widget__footer {
    gap: 10px;
}

.ka-shelf-widget:hover .ka-shelf-widget__footer svg {
    transform: translateX(3px);
}


/* ── RECOMMEND BUTTON ───────────────────────────────────────── */

.ka-recommend-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    width: 70%;
    margin: var(--ka-space-6) auto 0;
    padding: var(--ka-space-3) var(--ka-space-5);
    font-size: 14px;
    font-weight: 500;
    color: var(--ka-text-muted);
    background: transparent;
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius);
    transition: border-color var(--ka-transition), color var(--ka-transition), background var(--ka-transition), transform var(--ka-transition);
}

.ka-recommend-btn:hover {
    border-color: rgba(99, 102, 241, 0.3);
    color: var(--ka-accent-light);
    background: rgba(99, 102, 241, 0.04);
    transform: translateY(-1px);
}

.ka-recommend-btn svg {
    width: 15px;
    height: 15px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ── RECOMMEND MODAL ────────────────────────────────────────── */

.ka-rec-overlay {
    position: fixed;
    inset: 0;
    z-index: 1001;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.ka-rec-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

.ka-rec-panel {
    width: 100%;
    max-width: 560px;
    background: var(--ka-bg);
    border: 1px solid var(--ka-border-light);
    border-bottom: none;
    border-radius: 20px 20px 0 0;
    transform: translateY(100%);
    transition: transform 0.4s var(--ka-ease);
}

.ka-rec-overlay.is-open .ka-rec-panel {
    transform: translateY(0);
}

.ka-rec-handle {
    width: 36px;
    height: 4px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.1);
    margin: var(--ka-space-3) auto 0;
}

.ka-rec-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: var(--ka-space-4) 22px var(--ka-space-4);
    border-bottom: 1px solid var(--ka-border);
}

.ka-rec-header__icon {
    width: 38px;
    height: 38px;
    border-radius: 9px;
    background: var(--ka-accent-subtle);
    border: 1px solid rgba(99, 102, 241, 0.15);
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.ka-rec-header__icon svg {
    width: 18px;
    height: 18px;
    stroke: var(--ka-accent-light);
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ka-rec-header__title {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-md);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ka-text);
}

.ka-rec-header__sub {
    font-size: 12px;
    color: var(--ka-text-muted);
    margin-top: 2px;
}

.ka-rec-close {
    margin-left: auto;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--ka-text-lg);
    color: var(--ka-text-muted);
    flex-shrink: 0;
    transition: background var(--ka-transition), color var(--ka-transition);
}

.ka-rec-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--ka-text);
}

.ka-rec-body {
    padding: 22px 22px 28px;
}

.ka-rec-body.is-hidden {
    display: none;
}

.ka-rec-field {
    margin-bottom: var(--ka-space-4);
}

.ka-rec-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--ka-text-xs);
    font-weight: 700;
    color: var(--ka-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: var(--ka-space-2);
}

.ka-rec-label__opt {
    font-weight: 400;
    color: var(--ka-text-faint);
    text-transform: none;
    letter-spacing: 0;
    font-size: var(--ka-text-xs);
}

.ka-rec-label__req {
    color: var(--ka-accent-light);
}

.ka-rec-input,
.ka-rec-textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius);
    padding: var(--ka-space-3) 14px;
    font-family: var(--ka-font-body);
    font-size: var(--ka-text-base);
    color: var(--ka-text);
    transition: border-color var(--ka-transition), background var(--ka-transition), box-shadow var(--ka-transition);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.ka-rec-input::placeholder,
.ka-rec-textarea::placeholder {
    color: var(--ka-text-faint);
}

.ka-rec-input:focus,
.ka-rec-textarea:focus {
    border-color: rgba(99, 102, 241, 0.45);
    background: rgba(99, 102, 241, 0.04);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.08);
}

.ka-rec-input.is-error {
    border-color: rgba(239, 68, 68, 0.5);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.08);
}

.ka-rec-textarea {
    resize: none;
    height: 84px;
    line-height: var(--ka-leading-normal);
}

.ka-rec-send {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px var(--ka-space-6);
    font-family: var(--ka-font-body);
    font-size: var(--ka-text-base);
    font-weight: 600;
    color: #fff;
    background: var(--ka-accent);
    border: none;
    border-radius: var(--ka-radius);
    cursor: pointer;
    transition: background var(--ka-transition), transform var(--ka-transition), box-shadow var(--ka-transition);
    margin-top: 6px;
}

.ka-rec-send:hover {
    background: var(--ka-accent-light);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.25);
}

.ka-rec-send:active {
    transform: scale(0.98);
}

.ka-rec-send svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ka-rec-success {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 44px var(--ka-space-6) 52px;
    gap: var(--ka-space-3);
}

.ka-rec-success.is-shown {
    display: flex;
}

.ka-rec-success__icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    display: grid;
    place-items: center;
    margin-bottom: var(--ka-space-1);
}

.ka-rec-success__icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--ka-accent-light);
    fill: none;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ka-rec-success__title {
    font-family: var(--ka-font-heading);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.ka-rec-success__sub {
    font-size: 14px;
    color: var(--ka-text-muted);
    line-height: var(--ka-leading-normal);
}


/* ── THE CIRCLE ─────────────────────────────────────────────── */

.ka-circle {
    position: relative;
    width: 220px;
    height: 220px;
    margin: 0 auto var(--ka-space-8);
}

.ka-circle__ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1px dashed rgba(99, 102, 241, 0.2);
    animation: spin 30s linear infinite;
}

.ka-circle__ring--2 {
    inset: 20px;
    border-color: rgba(167, 139, 250, 0.15);
    animation-direction: reverse;
    animation-duration: 25s;
}

.ka-circle__seats {
    position: absolute;
    inset: 0;
}

.ka-circle__seat {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 52px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--ka-space-1);
    transform: translate(-50%, -50%) rotate(var(--seat-angle)) translateY(-96px) rotate(calc(var(--seat-angle) * -1));
}

.ka-circle__node {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--ka-surface);
    border: 1px solid var(--ka-border-light);
    display: grid;
    place-items: center;
    transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.ka-circle__node svg {
    width: 16px;
    height: 16px;
    stroke: var(--ka-accent-light);
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ka-circle__seat:nth-child(1) .ka-circle__node {
    animation: nodeGlow 4s ease-in-out 0s infinite;
}

.ka-circle__seat:nth-child(2) .ka-circle__node {
    animation: nodeGlow 4s ease-in-out 0.7s infinite;
}

.ka-circle__seat:nth-child(3) .ka-circle__node {
    animation: nodeGlow 4s ease-in-out 1.4s infinite;
}

.ka-circle__seat:nth-child(4) .ka-circle__node {
    animation: nodeGlow 4s ease-in-out 2.1s infinite;
}

.ka-circle__seat:nth-child(5) .ka-circle__node {
    animation: nodeGlow 4s ease-in-out 2.8s infinite;
}

.ka-circle__seat:nth-child(6) .ka-circle__node {
    animation: nodeGlow 4s ease-in-out 3.5s infinite;
}

.ka-circle__seat span {
    font-size: 9px;
    font-weight: 600;
    color: var(--ka-text-faint);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.ka-circle__center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--ka-accent-subtle);
    border: 1.5px solid rgba(99, 102, 241, 0.3);
    display: grid;
    place-items: center;
    z-index: 2;
}

.ka-circle__center span {
    font-family: var(--ka-font-heading);
    font-size: 14px;
    font-weight: 800;
    color: var(--ka-accent-light);
}

.ka-circle__center::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px solid rgba(99, 102, 241, 0.15);
    animation: circleCenterPulse 3s ease-out infinite;
}

.ka-circle__center::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px solid rgba(99, 102, 241, 0.15);
    animation: circleCenterPulse 3s ease-out 1.5s infinite;
}


/* ── Circle Pillars ─────────────────────────────────────────── */

.ka-circle-pillars {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--ka-space-3);
    margin-bottom: var(--ka-space-8);
}

.ka-circle-pillar {
    text-align: center;
    padding: var(--ka-space-5) var(--ka-space-3);
    background: var(--ka-surface);
    border: 1px solid var(--ka-border);
    border-radius: var(--ka-radius-lg);
    transition: border-color var(--ka-transition), transform var(--ka-transition);
}

.ka-circle-pillar:hover {
    border-color: rgba(99, 102, 241, 0.25);
    transform: translateY(-2px);
}

.ka-circle-pillar__icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--ka-accent-subtle);
    border: 1px solid rgba(99, 102, 241, 0.12);
    display: grid;
    place-items: center;
    margin: 0 auto 10px;
}

.ka-circle-pillar__icon svg {
    width: 16px;
    height: 16px;
    stroke: var(--ka-accent-light);
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ka-circle-pillar__title {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-sm);
    font-weight: 800;
    color: var(--ka-text);
    margin-bottom: var(--ka-space-1);
}

.ka-circle-pillar__desc {
    font-size: var(--ka-text-xs);
    line-height: 1.5;
    color: var(--ka-text-muted);
}


/* ── Circle Join CTA ────────────────────────────────────────── */

.ka-circle-join {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 70%;
    margin: 0 auto;
    cursor: pointer;
    border: none;
    padding: 14px var(--ka-space-6);
    background: var(--ka-accent);
    border-radius: var(--ka-radius);
    font-size: var(--ka-text-base);
    font-weight: 600;
    color: #fff;
    transition: background var(--ka-transition), transform var(--ka-transition), box-shadow var(--ka-transition);
    text-decoration: none;
}

.ka-circle-join:hover {
    background: var(--ka-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.25);
}

.ka-circle-join:active {
    transform: scale(0.98);
}

.ka-circle-join svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ── SHELF POPUP (Full bookshelf overlay) ───────────────────── */

.ka-shelf-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.ka-shelf-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

.ka-shelf-panel {
    position: relative;
    width: 100%;
    max-width: 640px;
    max-height: 88vh;
    background: var(--ka-bg);
    border: 1px solid var(--ka-border-light);
    border-bottom: none;
    border-radius: 20px 20px 0 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: translateY(100%);
    transition: transform 0.4s var(--ka-ease);
}

.ka-shelf-overlay.is-open .ka-shelf-panel {
    transform: translateY(0);
}

.ka-shelf-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--ka-space-5) var(--ka-space-6) var(--ka-space-4);
    border-bottom: 1px solid var(--ka-border);
    flex-shrink: 0;
}

.ka-shelf-header__title {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-lg);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.ka-shelf-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--ka-text-lg);
    color: var(--ka-text-muted);
    transition: background var(--ka-transition), color var(--ka-transition);
}

.ka-shelf-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--ka-text);
}

.ka-shelf-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--ka-space-5) 0 var(--ka-space-8);
    -webkit-overflow-scrolling: touch;
}

.ka-shelf-tier {
    margin-bottom: 28px;
}

.ka-shelf-tier:last-child {
    margin-bottom: 0;
}

.ka-shelf-tier__label {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0 var(--ka-space-6);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: var(--ka-space-2);
}

.ka-shelf-tier__badge {
    font-size: 10px;
    padding: 2px var(--ka-space-2);
    border-radius: var(--ka-radius-pill);
    font-weight: 700;
}

.ka-shelf-tier--s .ka-shelf-tier__label {
    color: var(--ka-gold);
}

.ka-shelf-tier--s .ka-shelf-tier__badge {
    background: var(--ka-gold-bg);
    color: var(--ka-gold);
}

.ka-shelf-tier--a .ka-shelf-tier__label {
    color: var(--ka-accent);
}

.ka-shelf-tier--a .ka-shelf-tier__badge {
    background: rgba(99, 102, 241, 0.12);
    color: var(--ka-accent-light);
}

.ka-shelf-tier--b .ka-shelf-tier__label {
    color: var(--ka-text-muted);
}

.ka-shelf-tier--b .ka-shelf-tier__badge {
    background: rgba(255, 255, 255, 0.06);
    color: var(--ka-text-muted);
}

.ka-shelf-row {
    display: flex;
    gap: 16px;
    padding: 0 var(--ka-space-6);
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.ka-shelf-row::-webkit-scrollbar {
    display: none;
}

.ka-shelf-book {
    flex-shrink: 0;
    width: 130px;
    cursor: pointer;
    scroll-snap-align: start;
}

.ka-shelf-book__cover-wrap {
    position: relative;
    width: 130px;
    height: 195px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--ka-surface-2);
    border: 1px solid var(--ka-border);
    margin-bottom: var(--ka-space-2);
    transition: transform var(--ka-transition), box-shadow var(--ka-transition), border-color var(--ka-transition);
}

.ka-shelf-book:hover .ka-shelf-book__cover-wrap {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5), 0 0 20px var(--ka-accent-glow);
    border-color: rgba(99, 102, 241, 0.3);
}

.ka-shelf-book__cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ka-shelf-book__fallback {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--ka-space-3) var(--ka-space-2);
    font-size: var(--ka-text-xs);
    font-weight: 600;
    line-height: 1.3;
    color: rgba(255, 255, 255, 0.7);
}

.ka-shelf-book__fallback--s {
    background: linear-gradient(145deg, #92400e, #78350f);
}

.ka-shelf-book__fallback--a {
    background: linear-gradient(145deg, #3730a3, #4338ca);
}

.ka-shelf-book__fallback--b {
    background: linear-gradient(145deg, #1e1e2e, #27272a);
}

.ka-shelf-book.has-fallback .ka-shelf-book__cover {
    display: none;
}

.ka-shelf-book.has-fallback .ka-shelf-book__fallback {
    display: flex;
}

.ka-shelf-book__title {
    font-size: var(--ka-text-xs);
    font-weight: 500;
    line-height: 1.3;
    color: var(--ka-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}


/* ── Shelf Detail View ──────────────────────────────────────── */

.ka-shelf-detail {
    position: absolute;
    inset: 0;
    background: var(--ka-bg);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.35s var(--ka-ease);
    z-index: 2;
}

.ka-shelf-detail.is-active {
    transform: translateX(0);
}

.ka-shelf-detail__header {
    display: flex;
    align-items: center;
    gap: var(--ka-space-3);
    padding: var(--ka-space-5) var(--ka-space-6) var(--ka-space-4);
    border-bottom: 1px solid var(--ka-border);
    flex-shrink: 0;
}

.ka-shelf-detail__back {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ka-text-muted);
    flex-shrink: 0;
    transition: background var(--ka-transition), color var(--ka-transition);
}

.ka-shelf-detail__back:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--ka-text);
}

.ka-shelf-detail__back svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ka-shelf-detail__heading {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-base);
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ka-shelf-detail__body {
    flex: 1;
    overflow-y: auto;
    padding: 28px var(--ka-space-6) var(--ka-space-10);
    -webkit-overflow-scrolling: touch;
}

.ka-shelf-detail__cover-wrap {
    width: 140px;
    height: 210px;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto var(--ka-space-6);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 40px var(--ka-accent-glow);
    border: 1px solid var(--ka-border-light);
}

.ka-shelf-detail__cover-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ka-shelf-detail__cover-fallback {
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--ka-space-4);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    color: rgba(255, 255, 255, 0.7);
}

.ka-shelf-detail__meta {
    text-align: center;
    margin-bottom: 28px;
}

.ka-shelf-detail__book-title {
    font-family: var(--ka-font-heading);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

.ka-shelf-detail__author {
    color: var(--ka-text-muted);
    font-size: 14px;
    margin-bottom: var(--ka-space-3);
}

.ka-shelf-detail__tier-badge {
    display: inline-block;
    font-size: var(--ka-text-xs);
    font-weight: 700;
    padding: 3px var(--ka-space-3);
    border-radius: var(--ka-radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ka-shelf-detail__tier-badge--s {
    background: var(--ka-gold-bg);
    color: var(--ka-gold);
}

.ka-shelf-detail__tier-badge--a {
    background: rgba(99, 102, 241, 0.12);
    color: var(--ka-accent-light);
}

.ka-shelf-detail__tier-badge--b {
    background: rgba(255, 255, 255, 0.06);
    color: var(--ka-text-muted);
}

.ka-shelf-detail__review-label {
    font-family: var(--ka-font-heading);
    font-size: var(--ka-text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ka-text-faint);
    margin-bottom: var(--ka-space-3);
}

.ka-shelf-detail__review {
    color: var(--ka-text-secondary);
    font-size: var(--ka-text-base);
    line-height: 1.75;
}


/* ── BIO CTA ────────────────────────────────────────────────── */

.ka-bio-cta {
    text-align: center;
    padding: var(--ka-space-16) 0 var(--ka-space-10);
    opacity: 0;
    transform: translateY(24px);
}

.ka-bio-cta.is-visible {
    animation: fadeUp 0.7s var(--ka-ease) forwards;
}

.ka-bio-cta__text {
    color: var(--ka-text-muted);
    font-size: var(--ka-text-base);
    margin-bottom: var(--ka-space-5);
}

.ka-bio-cta__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px var(--ka-space-8);
    font-family: var(--ka-font-body);
    font-size: var(--ka-text-base);
    font-weight: 600;
    border-radius: var(--ka-radius-pill);
    background: var(--ka-gradient);
    color: #fff;
    box-shadow: 0 0 30px var(--ka-accent-glow), 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: transform var(--ka-transition), box-shadow var(--ka-transition);
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.ka-bio-cta__btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(99, 102, 241, 0.3), 0 8px 30px rgba(0, 0, 0, 0.4);
}

.ka-bio-cta__btn svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ── BIO FOOTER ─────────────────────────────────────────────── */

.ka-bio-footer {
    text-align: center;
    padding-top: var(--ka-space-8);
    border-top: 1px solid var(--ka-border);
    color: var(--ka-text-faint);
    font-size: var(--ka-text-sm);
}


/* ============================================================
   RESPONSIVE — 640px  (original breakpoint)
   ============================================================ */

@media (min-width: 640px) {
    .ka-bio-hero__name {
        font-size: 44px;
    }

    .ka-bio-hero__ring {
        width: 160px;
        height: 160px;
    }

    /* Recommend modal — centered */
    .ka-rec-overlay {
        align-items: center;
    }

    .ka-rec-panel {
        border-radius: 20px;
        border-bottom: 1px solid var(--ka-border-light);
        transform: translateY(40px);
    }

    .ka-rec-overlay.is-open .ka-rec-panel {
        transform: translateY(0);
    }

    /* Shelf popup — centered */
    .ka-shelf-panel {
        border-radius: 20px;
        max-height: 80vh;
        border-bottom: 1px solid var(--ka-border-light);
    }

    .ka-shelf-overlay {
        align-items: center;
    }

    .ka-shelf-panel {
        transform: translateY(40px);
    }

    .ka-shelf-overlay.is-open .ka-shelf-panel {
        transform: translateY(0);
    }

    .ka-shelf-book {
        width: 140px;
    }

    .ka-shelf-book__cover-wrap {
        width: 140px;
        height: 210px;
    }

    .ka-shelf-detail__cover-wrap {
        width: 160px;
        height: 240px;
    }
}


/* ============================================================
   RESPONSIVE — 768px  (NEW — tablet)
   ============================================================ */

@media (min-width: 768px) {
    .ka-stack__card {
        max-width: 340px;
    }

    .ka-stack__stage {
        height: 310px;
    }

    .ka-shelf-book {
        width: 150px;
    }

    .ka-shelf-book__cover-wrap {
        width: 150px;
        height: 225px;
    }

    .ka-shelf-detail__cover-wrap {
        width: 170px;
        height: 255px;
    }

    .ka-bio-section__sub {
        max-width: 420px;
    }

    .ka-circle {
        width: 250px;
        height: 250px;
    }

    .ka-circle__seat {
        transform: translate(-50%, -50%) rotate(var(--seat-angle)) translateY(-110px) rotate(calc(var(--seat-angle) * -1));
    }
}


/* ============================================================
   RESPONSIVE — 1024px  (NEW — small desktop)
   ============================================================ */

@media (min-width: 1024px) {
    .ka-bio-hero__name {
        font-size: 48px;
    }

    .ka-bio-hero__ring {
        width: 170px;
        height: 170px;
    }

    .ka-stack__card {
        max-width: 360px;
    }

    .ka-shelf-row {
        flex-wrap: wrap;
        overflow-x: visible;
    }

    .ka-shelf-book {
        width: calc((100% - 56px) / 5);
        min-width: 100px;
    }

    .ka-shelf-book__cover-wrap {
        width: 100%;
        height: auto;
        aspect-ratio: 2 / 3;
    }

    .ka-circle {
        width: 280px;
        height: 280px;
    }

    .ka-circle__seat {
        transform: translate(-50%, -50%) rotate(var(--seat-angle)) translateY(-126px) rotate(calc(var(--seat-angle) * -1));
    }

    .ka-circle__node {
        width: 40px;
        height: 40px;
    }

    .ka-circle__center {
        width: 58px;
        height: 58px;
    }

    .ka-circle-pillars {
        gap: var(--ka-space-4);
    }

    .ka-circle-pillar {
        padding: var(--ka-space-5) var(--ka-space-3);
    }
}