@charset "utf-8";
:root {
    --color-page-bg: #FCFAF2;       /* 白練 */
    --color-surface: #FFFFFB;       /* 胡粉 */
    --color-ink: #1C1C1C;           /* 墨 */
    --color-muted: #756B6E;
    --color-primary: #8E354A;       /* 蘇芳 */
    --color-secondary: #E16B8C;     /* 紅梅 */
    --color-accent: #D7C4BB;        /* 灰桜 */
    --color-border: rgba(142, 53, 74, 0.18);
    --color-nav-bg: rgba(255, 255, 251, 0.82);
    --color-shadow: rgba(142, 53, 74, 0.10);
}

body {
    font-family: "Lato", sans-serif;
    font-weight: 400;
    padding-top: 5.0rem;
    color: var(--color-ink);
    background-color: var(--color-page-bg);
}

body.bg-light {
    color: var(--color-ink);
    background-color: var(--color-page-bg) !important;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-weight: 700;
}

.card {
    border-radius: 0.8rem!important;
    color: var(--color-ink);
    background-color: var(--color-surface);
}

.card.shadow-sm {
    box-shadow: 0 0.25rem 0.8rem var(--color-shadow) !important;
}

.card.border-0 {
    border-color: var(--color-border) !important;
}

.card-img-overlay {
    border-radius: 0.8rem!important;
}

.rounded-xl {
    border-radius: 0.8rem!important;
}

.rounded-xl-bottom {
    border-bottom-right-radius: 0.8rem !important;
    border-bottom-left-radius: 0.8rem !important;
}

.rounded-xl-top {
    border-top-left-radius: 0.8rem !important;
    border-top-right-radius: 0.8rem !important;
}


.text-profile-position {
    font-weight: 400;
}

.text-profile-bio {
    /* font-family: "Raleway"; */
    font-weight: 400;
}

.navbar {
    background-color: var(--color-nav-bg) !important;
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.navbar-light .navbar-brand,
.navbar-light .nav-link,
.navbar-light .navbar-toggler {
    color: var(--color-ink);
}

.navbar-light .navbar-brand:hover,
.navbar-light .nav-link:hover,
.navbar-light .nav-link:focus,
.navbar-light .nav-item.active .nav-link {
    color: var(--color-primary);
}

.navbar-light .navbar-toggler {
    border-color: var(--color-border);
}

html[data-language="en"] [data-lang="zh"],
html:not([data-language="zh"]) [data-lang="zh"],
html[data-language="zh"] [data-lang="en"] {
    display: none !important;
}

.language-toggle {
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    line-height: 1.25;
}

.language-toggle:hover {
    color: var(--color-primary);
    background: var(--color-surface);
    border-color: var(--color-secondary);
}

.language-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    box-shadow: none;
}

.inline-badge {
    height: 16px;
    vertical-align: -10%;
    margin-right: 2px;
    line-break: unset;
}

.no-break {
    white-space: nowrap;
}

.cover-image {
    width: 180px;
    max-height: 120px;
}

.abstract-body {
    min-height: 100px;
}

img.lazy {
    background-image: url('images/loading.gif');
    background-repeat: no-repeat;
    background-position: 50% 50%;
    background-size: 50px 50px;
    min-height: 80px;
}

div.lazy {
    background-image: url('images/loading.gif');
    background-repeat: no-repeat;
    background-position: 50% 50%;
    background-size: 50px 50px;
    min-height: 80px;
}

.badge-publication {
    font-size: 100%;
    color: var(--color-ink) !important;
    background-color: var(--color-accent) !important;
}

.badge-success,
.badge-warning {
    color: var(--color-ink) !important;
    background-color: var(--color-accent) !important;
}

.bg-white {
    background-color: var(--color-surface) !important;
}

.text-muted {
    color: var(--color-muted) !important;
}

.text-body {
    color: var(--color-ink) !important;
}

a,
.email-text {
    color: var(--color-primary);
}

a:hover,
a:focus,
.email-text:hover {
    color: var(--color-primary);
}

mark {
    color: var(--color-ink);
    background-color: var(--color-accent);
}

.border-bottom,
.border-top,
.border-gray {
    border-color: var(--color-border) !important;
}

.footer {
    color: var(--color-ink);
    background-color: var(--color-surface) !important;
    border-color: var(--color-border) !important;
}

.form-control,
.custom-select {
    color: var(--color-ink);
    background-color: var(--color-surface);
    border-color: var(--color-border);
}

[style*="background-color: rgba(255,255,255,0.9)"] {
    background-color: var(--color-surface) !important;
}

.email-text {
    font-family: Source Code Pro, monospace;
}

.carousel button {
    -webkit-appearance: none;
    appearance: none;
    border-radius: 0;
    box-shadow: none;
}

.carousel button:focus {
    outline: none;
}

.carousel-control-prev,
.carousel-control-next {
    padding: 0;
    background: transparent;
    border: 0;
}

.carousel-indicators button {
    box-sizing: content-box;
    flex: 0 1 auto;
    width: 30px;
    height: 3px;
    padding: 0;
    margin: 0 3px;
    cursor: pointer;
    background-color: #fff;
    background-clip: padding-box;
    border: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    opacity: 0.5;
    transition: opacity 0.6s ease;
}

.carousel-indicators button.active {
    opacity: 1;
}

.carousel-indicators button:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.25);
}

.carousel-control-prev:focus-visible .carousel-control-prev-icon,
.carousel-control-next:focus-visible .carousel-control-next-icon {
    outline: 2px solid #fff;
    outline-offset: 4px;
    border-radius: 2px;
    box-shadow: 0 0 0 6px rgba(0, 0, 0, 0.25);
}

/* Pac-Man easter egg ----------------------------------------------------- */
.pacman-easter-egg {
    --pacman-yellow: #ffd800;
    --pacman-wafer: #d59645;
    --pacman-angle: 0deg;
    position: fixed;
    z-index: 1080;
    inset: 0;
    pointer-events: none;
}

.pacman-control {
    position: absolute;
    width: 64px;
    height: 64px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    cursor: grab;
    pointer-events: auto;
    touch-action: none;
    image-rendering: pixelated;
}

.pacman-control:active,
.pacman-control.is-dragging {
    cursor: grabbing;
}

.pacman-control:focus-visible {
    outline: 3px solid #2f80ed;
    outline-offset: 5px;
}

.pacman-sprite {
    display: block;
    width: 100%;
    height: 100%;
    transform: rotate(var(--pacman-angle));
    transition: transform 140ms steps(2, end);
    animation: pacman-hover 2.8s steps(2, end) infinite;
}

.pacman-control.is-dragging .pacman-sprite {
    animation: none;
}

.pacman-control.is-eating .pacman-sprite {
    animation: pacman-eat-bob 115ms steps(2, end) infinite;
}

.pacman-sprite svg {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
    image-rendering: pixelated;
}

.pacman-body {
    fill: var(--pacman-yellow);
}

.pacman-body-closed {
    display: none;
}

.pacman-control.is-mouth-closed .pacman-body-open {
    display: none;
}

.pacman-control.is-mouth-closed .pacman-body-closed {
    display: block;
}

.pacman-hint {
    position: absolute;
    top: var(--pacman-hint-top, 0px);
    left: var(--pacman-hint-left, 0px);
    padding: 0.35rem 0.55rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    color: var(--color-primary);
    background: var(--color-surface);
    box-shadow: 0 3px 12px var(--color-shadow);
    font: 600 0.68rem/1.2 "Source Code Pro", monospace;
    opacity: 0;
    transform: translate(-50%, calc(-100% - 10px)) translateY(4px);
    transition: opacity 180ms ease, transform 180ms ease;
    white-space: nowrap;
}

.pacman-control:hover + .pacman-hint,
.pacman-control.is-dragging + .pacman-hint,
.pacman-easter-egg.is-dragging .pacman-hint,
.pacman-control:focus-visible + .pacman-hint {
    opacity: 1;
    transform: translate(-50%, calc(-100% - 10px));
}

.pacman-target--wafer {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.pacman-target--wafer > *:not(.pacman-wafer):not(.pacman-crumbs):not(.pacman-eaten-trail) {
    visibility: hidden;
}

.pacman-wafer {
    position: absolute;
    z-index: 5;
    inset: 0;
    overflow: hidden;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(3, 1fr);
    border: 2px solid rgba(109, 64, 10, 0.28);
    border-radius: inherit;
    background-color: var(--pacman-wafer);
    background-image:
        linear-gradient(135deg, transparent 38%, rgba(255, 231, 164, 0.68) 39%, rgba(255, 231, 164, 0.68) 47%, transparent 48%),
        linear-gradient(45deg, transparent 38%, rgba(116, 68, 13, 0.28) 39%, rgba(116, 68, 13, 0.28) 47%, transparent 48%);
    background-size: 29px 29px;
    box-shadow: inset 0 0 0 5px rgba(255, 219, 133, 0.2), inset 0 0 22px rgba(96, 52, 5, 0.18);
    clip-path: circle(0% at 0% 100%);
    opacity: 1;
    animation: pacman-wafer-arrive 280ms steps(4, end) forwards;
    pointer-events: none;
}

.pacman-eaten-trail {
    position: absolute;
    z-index: 6;
    inset: 0;
    width: 100%;
    height: 100%;
    color: var(--color-page-bg, #f8f9fa);
    pointer-events: none;
}

.pacman-crumbs {
    position: absolute;
    z-index: 7;
    inset: 0;
    overflow: visible;
    pointer-events: none;
}

.pacman-crumb {
    position: absolute;
    left: var(--crumb-left, 0px);
    top: var(--crumb-top, 0px);
    width: 7px;
    height: 7px;
    background: #e8b45f;
    box-shadow: 2px 2px 0 #9a6428;
    image-rendering: pixelated;
    opacity: 0;
    animation: pacman-cookie-crumb 900ms steps(7, end) var(--crumb-delay) both;
}

.pacman-crumb.is-large {
    width: 10px;
    height: 10px;
}

.pacman-target--eaten {
    visibility: hidden;
    pointer-events: none;
}

@keyframes pacman-hover {
    0%, 100% { transform: rotate(var(--pacman-angle)) translateY(0); }
    50% { transform: rotate(var(--pacman-angle)) translateY(-2px); }
}

@keyframes pacman-eat-bob {
    0%, 100% { transform: rotate(var(--pacman-angle)) translateY(0); }
    50% { transform: rotate(var(--pacman-angle)) translateY(-2px); }
}

@keyframes pacman-wafer-arrive {
    0% {
        clip-path: circle(0% at 0% 100%);
    }
    100% {
        clip-path: circle(150% at 0% 100%);
    }
}

@keyframes pacman-cookie-crumb {
    0% {
        opacity: 1;
        transform: translate(0, 0) rotate(0deg);
    }
    100% {
        opacity: 0;
        transform: translate(var(--crumb-x), var(--crumb-y)) rotate(var(--crumb-rotate));
    }
}

@media (prefers-reduced-motion: reduce) {
    .carousel-indicators button {
        transition: none;
    }

    .pacman-sprite,
    .pacman-wafer,
    .pacman-crumb {
        animation-duration: 1ms;
        animation-iteration-count: 1;
    }

    .pacman-sprite,
    .pacman-hint,
    .pacman-target--wafer > *:not(.pacman-wafer):not(.pacman-crumbs):not(.pacman-eaten-trail) {
        transition-duration: 1ms;
    }
}