@charset "utf-8";

/* ========================================
   LIQUID GLASS THEME - Global Styles
   ======================================== */

:root {
    --glass-bg: rgba(255, 255, 255, 0.12);
    --glass-bg-strong: rgba(255, 255, 255, 0.18);
    --glass-border: rgba(255, 255, 255, 0.25);
    --glass-border-strong: rgba(255, 255, 255, 0.4);
    --glass-shadow: rgba(31, 38, 135, 0.15);
    --glass-blur: 20px;
    --glass-blur-strong: 30px;
    --text-primary: #f0f0f5;
    --text-secondary: rgba(240, 240, 245, 0.7);
    --text-muted: rgba(240, 240, 245, 0.5);
    --accent-primary: #7c83ff;
    --accent-secondary: #a78bfa;
    --accent-gradient: linear-gradient(135deg, #7c83ff 0%, #a78bfa 50%, #f472b6 100%);
    --bg-gradient-1: #0f0c29;
    --bg-gradient-2: #1a1147;
    --bg-gradient-3: #24243e;
    --card-radius: 20px;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", "Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-weight: 400;
    padding-top: 5.5rem;
    color: var(--text-primary);
    min-height: 100vh;
    background: var(--bg-gradient-1);
    background-attachment: fixed;
    overflow-x: hidden;
    position: relative;
}

body.bg-light {
    background: var(--bg-gradient-1) !important;
}

/* Animated Gradient Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(120, 80, 220, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(100, 130, 255, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(244, 114, 182, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, rgba(56, 189, 248, 0.1) 0%, transparent 40%),
        linear-gradient(135deg, var(--bg-gradient-1) 0%, var(--bg-gradient-2) 40%, var(--bg-gradient-3) 100%);
    z-index: -2;
    animation: bgShift 20s ease-in-out infinite alternate;
}

@keyframes bgShift {
    0% {
        background-position: 0% 0%, 100% 0%, 50% 100%, 70% 60%, 0% 0%;
    }
    50% {
        background-position: 30% 20%, 70% 40%, 30% 60%, 50% 30%, 0% 0%;
    }
    100% {
        background-position: 60% 40%, 40% 60%, 60% 30%, 30% 70%, 0% 0%;
    }
}

/* Floating Orbs */
body::after {
    content: '';
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124, 131, 255, 0.12) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    z-index: -1;
    animation: floatOrb 15s ease-in-out infinite alternate;
    pointer-events: none;
}

@keyframes floatOrb {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-80px, 120px) scale(1.1); }
    66% { transform: translate(40px, 60px) scale(0.9); }
    100% { transform: translate(-40px, 140px) scale(1.05); }
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-weight: 700;
    color: var(--text-primary);
}

a {
    color: var(--accent-primary);
    transition: var(--transition-smooth);
    text-decoration: none;
}

a:hover {
    color: var(--accent-secondary);
    text-decoration: none;
    text-shadow: 0 0 12px rgba(167, 139, 250, 0.4);
}

hr {
    border-color: var(--glass-border);
}

/* ========================================
   Liquid Glass Card Mixin (via class)
   ======================================== */

.glass-card,
.card.border-0.shadow-sm,
.card.border-0,
.bg-white.shadow-sm,
.bg-white {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border) !important;
    border-radius: var(--card-radius) !important;
    box-shadow:
        0 8px 32px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.1),
        inset 0 -1px 0 rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    color: var(--text-primary);
}

/* Glass shimmer effect on hover */
.glass-card::before,
.card.border-0.shadow-sm::before,
.bg-white.shadow-sm::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.04),
        transparent
    );
    transition: left 0.8s ease;
    pointer-events: none;
    z-index: 0;
}

.glass-card:hover::before,
.card.border-0.shadow-sm:hover::before,
.bg-white.shadow-sm:hover::before {
    left: 100%;
}

.glass-card:hover,
.card.border-0.shadow-sm:hover,
.bg-white.shadow-sm:hover {
    background: var(--glass-bg-strong) !important;
    border-color: var(--glass-border-strong) !important;
    box-shadow:
        0 12px 40px rgba(31, 38, 135, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.15),
        inset 0 -1px 0 rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

/* Card body content stays above shimmer */
.card-body,
.glass-card > * {
    position: relative;
    z-index: 1;
}

/* ========================================
   Navbar - Glass Style
   ======================================== */

.navbar {
    opacity: 1;
    background: rgba(15, 12, 41, 0.6) !important;
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition-smooth);
    padding: 0.75rem 1rem;
}

.navbar-light .navbar-brand,
.navbar-light .navbar-brand strong {
    color: var(--text-primary) !important;
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 1.3rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-light .navbar-nav .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    transition: var(--transition-smooth);
    position: relative;
}

.navbar-light .navbar-nav .nav-link:hover {
    color: var(--text-primary) !important;
    background: rgba(255, 255, 255, 0.08);
}

.navbar-light .navbar-nav .nav-item.active .nav-link {
    color: var(--accent-primary) !important;
    background: rgba(124, 131, 255, 0.12);
}

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

.navbar-toggler i,
.navbar-toggler {
    color: var(--text-secondary) !important;
}

/* ========================================
   Profile Card Enhancements
   ======================================== */

.text-profile-position {
    font-weight: 400;
    color: var(--text-secondary);
}

.text-profile-bio {
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.7;
}

.inline-badge {
    height: 18px;
    vertical-align: -12%;
    margin-right: 4px;
    line-break: unset;
    filter: brightness(1.1);
}

.figure-img.img-thumbnail {
    background: var(--glass-bg) !important;
    border: 2px solid var(--glass-border) !important;
    border-radius: 16px !important;
    padding: 4px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.2);
    transition: var(--transition-smooth);
}

.figure-img.img-thumbnail:hover {
    border-color: var(--accent-primary) !important;
    box-shadow: 0 0 25px rgba(124, 131, 255, 0.3);
    transform: scale(1.03);
}

/* Social links */
.card-body a.pr-3 {
    color: var(--text-secondary) !important;
    transition: var(--transition-smooth);
    padding: 4px 12px 4px 0;
    display: inline-block;
}

.card-body a.pr-3:hover {
    color: var(--accent-primary) !important;
    transform: translateY(-1px);
}

.card-body a.pr-3 i {
    transition: var(--transition-smooth);
}

.card-body a.pr-3:hover i {
    text-shadow: 0 0 12px rgba(124, 131, 255, 0.5);
}

/* ========================================
   Text Color Overrides for Dark Theme
   ======================================== */

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

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

.small, small {
    color: var(--text-secondary);
}

p {
    color: var(--text-secondary);
}

.h1, h1 {
    color: var(--text-primary);
}

mark {
    background: rgba(124, 131, 255, 0.2);
    color: var(--text-secondary);
    border-radius: 4px;
    padding: 2px 6px;
}

/* ========================================
   No Break & Utility
   ======================================== */

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

/* ========================================
   Publication Styles
   ======================================== */

.cover-image {
    width: 180px;
    max-height: 120px;
    border-radius: 12px;
}

.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;
    border-radius: 12px;
}

.badge-publication {
    font-size: 100%;
}

/* Publication items */
.border-bottom.border-gray,
.border-top.border-gray {
    border-color: var(--glass-border) !important;
}

.border-bottom {
    border-color: var(--glass-border) !important;
}

/* ========================================
   Email Text
   ======================================== */

.email-text {
    font-family: "JetBrains Mono", "Fira Code", Courier, monospace;
    font-size: 0.9em;
    color: var(--accent-primary);
}

/* ========================================
   News Card
   ======================================== */

.my-3.bg-white.shadow-sm.rounded-sm {
    border-radius: var(--card-radius) !important;
}

/* News & Publication Card Headers */
h6.p-3.mb-0.border-bottom,
h6.border-bottom.border-gray {
    color: var(--text-primary);
    border-color: var(--glass-border) !important;
    font-weight: 600;
    letter-spacing: 0.02em;
}

h6.p-3.mb-0.border-bottom a,
h6.border-bottom a {
    color: var(--accent-primary);
}

/* ========================================
   Publications Page
   ======================================== */

.rounded-sm {
    border-radius: var(--card-radius) !important;
}

/* Year sidebar navigation */
#navbar-year .nav-link {
    color: var(--text-secondary);
    border-radius: 10px;
    padding: 6px 14px;
    margin-bottom: 4px;
    transition: var(--transition-smooth);
}

#navbar-year .nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

#navbar-year .nav-link.active {
    color: #fff !important;
    background: var(--accent-gradient) !important;
    box-shadow: 0 4px 15px rgba(124, 131, 255, 0.3);
}

/* Publication year headers */
h2.pt-4 {
    color: var(--text-primary);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* ========================================
   Card overlays for mobile publication
   ======================================== */

.card-img-overlay {
    background-color: rgba(15, 12, 41, 0.85) !important;
    border-radius: var(--card-radius);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    margin-top: 3rem;
    padding-bottom: 1rem;
}

.footer .text-muted {
    color: var(--text-muted) !important;
    font-size: 0.85rem;
}

/* ========================================
   Button Styles
   ======================================== */

.btn-primary {
    background: var(--accent-gradient);
    border: none;
    border-radius: 12px;
    padding: 8px 24px;
    font-weight: 600;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(124, 131, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(124, 131, 255, 0.4);
}

/* ========================================
   Modal (WeChat QR Code etc.)
   ======================================== */

.modal-content {
    background: rgba(15, 12, 41, 0.9) !important;
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    color: var(--text-primary);
}

.modal-footer {
    border-color: var(--glass-border);
}

.modal-body {
    color: var(--text-secondary);
}

/* ========================================
   Alert / Debug Message
   ======================================== */

.alert-warning {
    background: rgba(255, 193, 7, 0.15) !important;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(255, 193, 7, 0.3) !important;
    border-radius: var(--card-radius) !important;
    color: #ffc107;
}

.alert-warning code {
    color: #fbbf24;
    background: rgba(255, 193, 7, 0.1);
    border-radius: 4px;
    padding: 2px 6px;
}

/* ========================================
   Scrollbar
   ======================================== */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: rgba(124, 131, 255, 0.3);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(124, 131, 255, 0.5);
}

/* ========================================
   Selection
   ======================================== */

::selection {
    background: rgba(124, 131, 255, 0.3);
    color: #fff;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
    body {
        padding-top: 4.5rem;
    }

    .card-body.p-5 {
        padding: 1.5rem !important;
    }

    :root {
        --card-radius: 16px;
    }
}

/* ========================================
   Floating Orbs - Additional Decorations
   ======================================== */

.floating-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.floating-orbs .orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.15;
    animation: orbFloat 20s ease-in-out infinite;
}

.floating-orbs .orb:nth-child(1) {
    width: 400px;
    height: 400px;
    background: #7c83ff;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 25s;
}

.floating-orbs .orb:nth-child(2) {
    width: 300px;
    height: 300px;
    background: #a78bfa;
    top: 60%;
    right: 10%;
    animation-delay: -5s;
    animation-duration: 20s;
}

.floating-orbs .orb:nth-child(3) {
    width: 350px;
    height: 350px;
    background: #f472b6;
    bottom: 10%;
    left: 30%;
    animation-delay: -10s;
    animation-duration: 22s;
}

.floating-orbs .orb:nth-child(4) {
    width: 250px;
    height: 250px;
    background: #38bdf8;
    top: 30%;
    right: 30%;
    animation-delay: -7s;
    animation-duration: 18s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(40px, -60px) scale(1.1); }
    50% { transform: translate(-30px, 40px) scale(0.95); }
    75% { transform: translate(50px, 20px) scale(1.05); }
}

/* ========================================
   Experience Card - List Item Styling
   ======================================== */

.media-body {
    color: var(--text-secondary);
}

.media-body div:first-child {
    color: var(--text-primary);
    font-weight: 500;
}

.list.small li {
    color: var(--text-secondary);
}

/* Education/Experience logos */
.media img[style*="width: 18px"] {
    filter: brightness(1.2);
    border-radius: 3px;
}

/* ========================================
   Link Styles in Cards
   ======================================== */

.abstract-links a {
    color: var(--accent-primary) !important;
    background: rgba(124, 131, 255, 0.1);
    padding: 2px 8px;
    border-radius: 6px;
    margin-right: 4px;
    transition: var(--transition-smooth);
    display: inline-block;
    margin-bottom: 4px;
}

.abstract-links a:hover {
    background: rgba(124, 131, 255, 0.25);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(124, 131, 255, 0.2);
}

/* CV Link */
a[href*="cv"], a[href*="CV"] {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-gradient);
    color: #fff !important;
    border-radius: 10px;
    font-weight: 600;
    -webkit-text-fill-color: #fff;
    transition: var(--transition-smooth);
}

a[href*="cv"]:hover, a[href*="CV"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(124, 131, 255, 0.4);
}

/* ========================================
   Collapse Navbar (mobile)
   ======================================== */

.navbar-collapse {
    background: transparent;
}

@media (max-width: 575.98px) {
    .navbar-collapse {
        background: rgba(15, 12, 41, 0.95);
        backdrop-filter: blur(var(--glass-blur-strong));
        -webkit-backdrop-filter: blur(var(--glass-blur-strong));
        border-radius: 16px;
        padding: 12px;
        margin-top: 8px;
        border: 1px solid var(--glass-border);
    }
}

/* ========================================
   Container adjustments
   ======================================== */

.container {
    position: relative;
    z-index: 1;
}

/* ========================================
   Badge styles (for news, publications)
   ======================================== */

.badge-primary {
    background: var(--accent-gradient);
    color: #fff;
    border-radius: 8px;
    font-weight: 600;
}

.badge-info {
    background: rgba(56, 189, 248, 0.2);
    color: #38bdf8;
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 8px;
}

.badge-success {
    background: rgba(52, 211, 153, 0.2);
    color: #34d399;
    border: 1px solid rgba(52, 211, 153, 0.3);
    border-radius: 8px;
}

.badge-warning {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 8px;
}

/* ========================================
   Tooltip
   ======================================== */

.tooltip-inner {
    background: rgba(15, 12, 41, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 6px 12px;
    font-size: 0.85rem;
}

.bs-tooltip-top .arrow::before {
    border-top-color: rgba(15, 12, 41, 0.95);
}

/* ========================================
   iOS 26 Liquid Glass Droplet Lens
   ======================================== */

#liquid-droplet {
    position: fixed;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    will-change: left, top;
    overflow: hidden;

    /* Glass background */
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(2px) brightness(1.2) saturate(1.3);
    -webkit-backdrop-filter: blur(2px) brightness(1.2) saturate(1.3);

    /* Depth shadow */
    box-shadow:
        0 0 0 2.5px rgba(255, 255, 255, 0.35),
        0 0 0 4px rgba(255, 255, 255, 0.08),
        inset 0 0 50px rgba(255, 255, 255, 0.06),
        0 10px 50px rgba(0, 0, 0, 0.45),
        0 2px 15px rgba(0, 0, 0, 0.25);

    /* Hidden by default */
    opacity: 0;
    transform: scale(0.6);
    transition:
        opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#liquid-droplet.active {
    opacity: 1;
    transform: scale(1);
}

/* The magnified content container */
#liquid-droplet .droplet-magnify {
    position: absolute;
    overflow: hidden;
    border-radius: 50%;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* Specular highlight */
#liquid-droplet .droplet-shine {
    position: absolute;
    top: 8%;
    left: 15%;
    width: 55%;
    height: 30%;
    border-radius: 50%;
    background: linear-gradient(
        175deg,
        rgba(255, 255, 255, 0.4) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 100%
    );
    pointer-events: none;
    transform: rotate(-12deg);
    z-index: 10;
}

/* Refraction ring border */
#liquid-droplet .droplet-ring {
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    pointer-events: none;
    z-index: 10;
}

/* Chromatic aberration */
#liquid-droplet::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    right: 3px;
    bottom: 3px;
    border-radius: 50%;
    box-shadow:
        inset 5px 0 15px rgba(100, 120, 255, 0.12),
        inset -5px 0 15px rgba(244, 114, 182, 0.12),
        inset 0 5px 15px rgba(56, 189, 248, 0.10),
        inset 0 -5px 15px rgba(167, 139, 250, 0.10);
    pointer-events: none;
    z-index: 11;
}

/* Mobile: never show */
@media (max-width: 768px) {
    #liquid-droplet {
        display: none !important;
    }
}