/* ========== ULTIMATE CIRCUIT LOGO ========== */
.circuit-logo-ultimate {
    display: flex;
    align-items: center;
    gap: 18px;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.circuit-logo-ultimate:hover {
    transform: translateY(-2px);
}

/* Main Circuit Container */
.circuit-icon-advanced {
    width: 60px;
    height: 60px;
    position: relative;
    filter: drop-shadow(0 0 10px rgba(255, 0, 0, 0.5));
}

/* Outer Circuit Frame */
.circuit-frame {
    width: 100%;
    height: 100%;
    position: absolute;
    border: 2px solid rgba(255, 0, 0, 0.8);
    border-radius: 15px;
    clip-path: polygon(
        0% 0%, 100% 0%, 100% 100%, 0% 100%,
        0% 0%, 
        /* Top line with breaks */
        10% 0%, 10% 10%, 25% 10%, 25% 0%,
        40% 0%, 40% 10%, 55% 10%, 55% 0%,
        70% 0%, 70% 10%, 85% 10%, 85% 0%,
        /* Right line */
        100% 10%, 90% 10%, 90% 25%, 100% 25%,
        100% 40%, 90% 40%, 90% 55%, 100% 55%,
        100% 70%, 90% 70%, 90% 85%, 100% 85%,
        /* Bottom line */
        85% 100%, 85% 90%, 70% 90%, 70% 100%,
        55% 100%, 55% 90%, 40% 90%, 40% 100%,
        25% 100%, 25% 90%, 10% 90%, 10% 100%,
        /* Left line */
        0% 85%, 10% 85%, 10% 70%, 0% 70%,
        0% 55%, 10% 55%, 10% 40%, 0% 40%,
        0% 25%, 10% 25%, 10% 10%, 0% 10%
    );
    animation: circuitFlow 4s linear infinite;
}

/* Inner Circuit Grid */
.circuit-grid {
    width: 80%;
    height: 80%;
    position: absolute;
    top: 10%;
    left: 10%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 3px;
}

.grid-cell {
    position: relative;
    overflow: hidden;
}

.grid-cell.active::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 40%, rgba(255, 0, 0, 0.6) 50%, transparent 60%);
    animation: gridShine 2s infinite;
}

/* Animated Circuit Paths */
.circuit-paths {
    position: absolute;
    width: 100%;
    height: 100%;
}

.path-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, #ff0000, transparent);
    height: 2px;
    animation: pathMove 3s linear infinite;
}

.path-line.horizontal-1 {
    top: 30%;
    left: 0;
    width: 100%;
    animation-delay: 0s;
}

.path-line.horizontal-2 {
    top: 70%;
    left: 0;
    width: 100%;
    animation-delay: 1s;
}

.path-line.vertical-1 {
    left: 30%;
    top: 0;
    height: 100%;
    width: 2px;
    background: linear-gradient(180deg, transparent, #ff0000, transparent);
    animation: pathMoveVertical 3s linear infinite;
}

.path-line.vertical-2 {
    left: 70%;
    top: 0;
    height: 100%;
    width: 2px;
    background: linear-gradient(180deg, transparent, #ff0000, transparent);
    animation: pathMoveVertical 3s linear infinite 1.5s;
}

/* Data Nodes */
.data-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #ff0000;
    border-radius: 50%;
    box-shadow: 
        0 0 10px #ff0000,
        0 0 20px #ff3333;
    animation: nodePulse 2s infinite;
}

.node:nth-child(1) { top: 20%; left: 20%; animation-delay: 0s; }
.node:nth-child(2) { top: 20%; left: 50%; animation-delay: 0.4s; }
.node:nth-child(3) { top: 20%; left: 80%; animation-delay: 0.8s; }
.node:nth-child(4) { top: 50%; left: 20%; animation-delay: 1.2s; }
.node:nth-child(5) { top: 50%; left: 80%; animation-delay: 1.6s; }
.node:nth-child(6) { top: 80%; left: 20%; animation-delay: 2s; }
.node:nth-child(7) { top: 80%; left: 50%; animation-delay: 2.4s; }
.node:nth-child(8) { top: 80%; left: 80%; animation-delay: 2.8s; }

/* Central AI Core */
.ai-core {
    position: absolute;
    width: 30px;
    height: 30px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(255,0,0,0.8) 0%, rgba(255,0,0,0.2) 70%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 900;
    color: white;
    text-shadow: 0 0 10px rgba(255,0,0,0.8);
    box-shadow: 
        0 0 20px rgba(255,0,0,0.6),
        inset 0 0 20px rgba(255,255,255,0.1);
    animation: corePulse 2s infinite;
    z-index: 10;
}

/* Logo Text */
.logo-text-cyber {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.logo-main-text {
    font-size: 32px;
    font-weight: 900;
    background: linear-gradient(45deg, 
        #ff0000 0%, 
        #ff3333 25%, 
        #ff6666 50%, 
        #ff3333 75%, 
        #ff0000 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: cyberGlitch 3s infinite;
    position: relative;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.logo-main-text::before,
.logo-main-text::after {
    content: 'SAI TECH';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

.logo-main-text::before {
    animation: glitch-1 2s infinite;
    color: #00ff00;
    z-index: -1;
}

.logo-main-text::after {
    animation: glitch-2 3s infinite;
    color: #0000ff;
    z-index: -2;
}

.logo-sub-text {
    font-size: 12px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 4px;
    text-transform: uppercase;
    position: relative;
    padding-left: 10px;
}

.logo-sub-text::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: #ff0000;
    animation: blink 1s infinite;
}

/* Logo Status Indicator */
.logo-status {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 12px;
    height: 12px;
    background: #00ff00;
    border-radius: 50%;
    box-shadow: 0 0 10px #00ff00;
    animation: statusPulse 2s infinite;
}

.logo-status::after {
    content: 'LIVE';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 8px;
    color: #00ff00;
    font-weight: 700;
    white-space: nowrap;
    opacity: 0;
    animation: statusText 3s infinite;
}

/* ========== ANIMATIONS ========== */
@keyframes circuitFlow {
    0% { 
        border-color: rgba(255, 0, 0, 0.8);
        box-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
    }
    33% { 
        border-color: rgba(255, 51, 51, 0.8);
        box-shadow: 0 0 15px rgba(255, 51, 51, 0.6);
    }
    66% { 
        border-color: rgba(255, 102, 102, 0.8);
        box-shadow: 0 0 20px rgba(255, 102, 102, 0.7);
    }
    100% { 
        border-color: rgba(255, 0, 0, 0.8);
        box-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
    }
}

@keyframes pathMove {
    0% { 
        transform: translateX(-100%);
        opacity: 0;
    }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { 
        transform: translateX(100%);
        opacity: 0;
    }
}

@keyframes pathMoveVertical {
    0% { 
        transform: translateY(-100%);
        opacity: 0;
    }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { 
        transform: translateY(100%);
        opacity: 0;
    }
}

@keyframes gridShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes nodePulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 
            0 0 10px #ff0000,
            0 0 20px #ff3333;
    }
    50% { 
        transform: scale(1.2);
        box-shadow: 
            0 0 20px #ff0000,
            0 0 40px #ff3333,
            0 0 60px #ff6666;
    }
}

@keyframes corePulse {
    0%, 100% { 
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 
            0 0 20px rgba(255,0,0,0.6),
            inset 0 0 20px rgba(255,255,255,0.1);
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.1);
        box-shadow: 
            0 0 40px rgba(255,0,0,0.8),
            inset 0 0 30px rgba(255,255,255,0.2);
    }
}

@keyframes cyberGlitch {
    0%, 100% { 
        background-position: 0% 50%;
        transform: translateX(0);
    }
    94% { transform: translateX(0); }
    95% { transform: translateX(2px); }
    96% { transform: translateX(-2px); }
    97% { transform: translateX(1px); }
    98% { transform: translateX(-1px); }
    99% { transform: translateX(0); }
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); opacity: 0.5; }
    94% { transform: translate(0); }
    95% { transform: translate(2px, -2px); opacity: 0.8; }
    96% { transform: translate(-2px, 2px); opacity: 0.8; }
    97% { transform: translate(1px, -1px); opacity: 0.8; }
    98% { transform: translate(-1px, 1px); opacity: 0.8; }
    99% { transform: translate(0); opacity: 0.5; }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); opacity: 0.3; }
    93% { transform: translate(0); }
    94% { transform: translate(-3px, 3px); opacity: 0.6; }
    95% { transform: translate(3px, -3px); opacity: 0.6; }
    96% { transform: translate(-1px, 1px); opacity: 0.6; }
    97% { transform: translate(1px, -1px); opacity: 0.6; }
    98% { transform: translate(0); opacity: 0.3; }
}

@keyframes statusPulse {
    0%, 100% { 
        box-shadow: 0 0 5px #00ff00;
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 20px #00ff00;
        transform: scale(1.2);
    }
}

@keyframes statusText {
    0%, 90%, 100% { opacity: 0; transform: translateX(-50%) translateY(0); }
    95% { opacity: 1; transform: translateX(-50%) translateY(-5px); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Hover Effects */
.circuit-logo-ultimate:hover .circuit-frame {
    animation-speed: 2s;
    filter: brightness(1.5);
}

.circuit-logo-ultimate:hover .node {
    animation-duration: 1s;
}

.circuit-logo-ultimate:hover .ai-core {
    animation-duration: 1s;
}

/* Mobile Optimization */
@media (max-width: 768px) {
    .circuit-icon-advanced {
        width: 50px;
        height: 50px;
    }
    
    .logo-main-text {
        font-size: 26px;
    }
    
    .logo-sub-text {
        font-size: 10px;
        letter-spacing: 3px;
    }
}
/* ========== PROJECT CATEGORIES & FILTERS ========== */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 40px 0 60px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 30px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 0, 0, 0.3);
    border-radius: 50px;
    color: var(--text-light);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 0, 0, 0.2), transparent);
    transition: left 0.5s ease;
}

.filter-btn:hover::before {
    left: 100%;
}

.filter-btn:hover {
    background: rgba(255, 0, 0, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 0, 0, 0.2);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary), #ff3333);
    color: var(--secondary);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(255, 0, 0, 0.4);
}

.filter-count {
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 800;
}

/* Project Categories Display */
.project-category-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 2;
}

.category-finance {
    background: linear-gradient(135deg, #00cc00, #33ff33);
    color: #000;
}

.category-education {
    background: linear-gradient(135deg, #0066cc, #3399ff);
    color: white;
}

.category-ai {
    background: linear-gradient(135deg, #ff3366, #ff6699);
    color: white;
}

.category-showcase {
    background: linear-gradient(135deg, #ff9900, #ffcc00);
    color: #000;
}

/* Project Difficulty */
.project-difficulty {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 3px;
}

.difficulty-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.difficulty-dot.active {
    background: var(--primary);
    box-shadow: 0 0 8px var(--primary);
}

/* Completion Date */
.project-date {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Favorite Star */
.project-favorite {
    position: absolute;
    bottom: 20px;
    right: 20px;
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2;
}

.project-favorite:hover {
    transform: scale(1.2);
}

.project-favorite.active {
    color: #ffcc00;
    text-shadow: 0 0 10px #ffcc00;
    animation: pulse 2s infinite;
}

/* Stats Bar */
.project-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--primary);
    font-family: 'Courier New', monospace;
}

.stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Project View Toggle */
.view-toggle {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.view-btn {
    padding: 10px 25px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-btn.active {
    background: rgba(255, 0, 0, 0.2);
    border-color: var(--primary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-gray);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.3;
}

/* Animation for filtering */
.project-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    position: absolute;
}

/* Projects Grid Container */
.projects-container {
    position: relative;
    min-height: 500px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    transition: all 0.4s ease;
}