/* --- CÀI ĐẶT THEME --- */
:root {
    --bg-primary: #020617;
    --bg-secondary: rgba(15, 23, 42, 0.6);
    --bg-tertiary: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --backdrop-bg: rgba(2, 6, 23, 0.8);
    --aurora-opacity: 1;
}

html[data-theme="classic"] {
    color-scheme: light;
    --bg-primary: #f1f5f9;
    --bg-secondary: rgba(255, 255, 255, 0.8);
    --bg-tertiary: #ffffff;
    --border-color: rgba(0, 0, 0, 0.1);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --backdrop-bg: rgba(0, 0, 0, 0.5);
    --aurora-opacity: 0;
}

html[data-theme="classic-black"] {
    color-scheme: dark;
    --bg-primary: #0a0a0a;
    --bg-secondary: rgba(15, 15, 15, 0.8);
    --bg-tertiary: #1a1a1a;
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #e5e5e5;
    --text-secondary: #a3a3a3;
    --backdrop-bg: rgba(0, 0, 0, 0.7);
    --aurora-opacity: 0;
}

html[data-theme="cyberpunk"] {
    --bg-primary: #1a082d;
    --bg-secondary: rgba(26, 8, 45, 0.7);
    --bg-tertiary: rgba(45, 12, 70, 0.8);
    --border-color: rgba(255, 255, 255, 0.2);
    --text-primary: #e2d1f7;
    --text-secondary: #b8a3f7;
    --backdrop-bg: rgba(26, 8, 45, 0.8);
    --aurora-opacity: 1;
    --aurora-color-1: rgba(240, 0, 170, 0.3); /* Pink */
    --aurora-color-2: rgba(0, 255, 255, 0.3); /* Cyan */
}

html[data-theme="retro"] {
    --bg-primary: #1f1f1f;
    --bg-secondary: rgba(31, 31, 31, 0.8);
    --bg-tertiary: rgba(50, 50, 50, 0.9);
    --border-color: #33ff33;
    --text-primary: #33ff33;
    --text-secondary: #00b300;
    --backdrop-bg: rgba(0, 0, 0, 0.9);
    --aurora-opacity: 0;
}
/* --- KẾT THÚC CÀI ĐẶT THEME --- */

html { scroll-behavior: smooth; }
body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.5s ease;
    overflow-x: hidden;
}
.aurora-background {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    opacity: var(--aurora-opacity);
    transition: opacity 0.5s ease;
    --aurora-color-1: rgba(139, 92, 246, 0.3);
    --aurora-color-2: rgba(59, 130, 246, 0.3);
    background-size: cover;
}
.aurora-background::before, .aurora-background::after {
    content: '';
    position: absolute;
    width: 800px; height: 800px;
    border-radius: 50%;
    filter: blur(100px);
    mix-blend-mode: screen;
    animation: aurora-animation 20s linear infinite;
}
.aurora-background::before {
    background: var(--aurora-color-1);
    top: -200px; left: -200px;
}
.aurora-background::after {
    background: var(--aurora-color-2);
    bottom: -200px; right: -200px;
    animation-direction: reverse;
    animation-duration: 25s;
}
@keyframes aurora-animation {
    0% { transform: rotate(0deg) translateX(50px) rotate(0deg); }
    100% { transform: rotate(360deg) translateX(50px) rotate(-360deg); }
}

.glass-effect {
    background-color: var(--bg-secondary);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    transition: background-color 0.5s ease, border-color 0.5s ease;
}

.chart-container { position: relative; width: 100%; height: 280px; }

/* Modal Styles */
.modal { 
    position: fixed; top: 50%; left: 50%; 
    transform: translate(-50%, -50%); 
    z-index: 50; display: none; max-height: 90vh; overflow-y: auto;
}
.fade-in { animation: fadeIn 0.3s ease-out forwards; }
.fade-out { animation: fadeOut 0.3s ease-in forwards; }
@keyframes fadeIn { 
    from { opacity: 0; transform: translate(-50%, -48%) scale(0.95); } 
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); } 
}
@keyframes fadeOut { 
    from { opacity: 1; transform: translate(-50%, -50%) scale(1); } 
    to { opacity: 0; transform: translate(-50%, -48%) scale(0.95); } 
}

/* Card Hover Effect */
.card-glow-effect {
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card-glow-effect:before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 1rem;
    border: 1px solid transparent;
    background: radial-gradient(400px at var(--mouse-x) var(--mouse-y), rgba(167, 139, 250, 0.25), transparent 80%);
    z-index: 0;
    transition: opacity 0.3s ease;
    opacity: 0;
}
.card-glow-effect:hover:before { opacity: 1; }
.card-glow-effect:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
}
html[data-theme="classic"] .card-glow-effect:hover {
     box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
}
.card-content { position: relative; z-index: 1; }

/* Chatbot Styles */
.chat-bubble-user { background-color: #4f46e5; color: white; }
.chat-bubble-bot { background-color: #374151; color: #d1d5db; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #475569; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #64748b; }

/* Timeline for Updates Tab */
.timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding: 10px 0;
}
.timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background-color: var(--border-color);
    top: 20px;
    bottom: 20px;
    left: 20px;
    margin-left: -1.5px;
    border-radius: 3px;
}
.timeline-item {
    padding: 10px 0;
    position: relative;
    background-color: inherit;
    width: 100%;
    padding-left: 60px;
    padding-right: 10px;
}
.timeline-icon {
    position: absolute;
    width: 40px;
    height: 40px;
    left: 0;
    background-color: var(--bg-tertiary);
    border: 3px solid var(--border-color);
    top: 24px;
    left: 20px; /* Căn icon vào đường timeline */
    margin-left: -23px; /* Dịch icon về bên trái một nửa chiều rộng để nó nằm chính giữa */
    border-radius: 50%;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.timeline-content {
    padding: 15px;
    background-color: var(--bg-tertiary);
    position: relative;
    border-radius: 8px;
}
.timeline-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.search-highlight, mark.search-highlight {
    background-color: rgba(99, 102, 241, 0.18); /* subtle indigo */
    padding: 0 .18rem;
    border-radius: 4px;
    color: inherit;
}

.search-clear-btn, #search-input-clear {
    min-width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 9999px;
    font-size: 0.95rem;
}

.role-preview {
    display: -webkit-box;
    -webkit-line-clamp: 2; /* WebKit/Blink fallback */
    line-clamp: 2; /* Standard property for newer/compatible UA */
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2rem;
    max-height: calc(1.2rem * 2); /* ensure consistent height */
}

.single-line-ellipsis {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
}

.tech-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
    vertical-align: -2px;
    margin-right: 6px;
}

/* Loading Overlay */
#loading-overlay {
    position: fixed;
    z-index: 1000;
    inset: 0;
    background: var(--bg-primary, #020617);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s cubic-bezier(.4,0,.2,1);
    opacity: 1;
}
#loading-overlay.loaded {
    opacity: 0;
    pointer-events: none;
}
#loading-overlay .spinner {
    width: 56px;
    height: 56px;
    border: 6px solid #6366f1;
    border-top: 6px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    box-shadow: 0 0 24px #6366f1aa;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}