* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    margin-top: 60px;
    background-color: #0d0d15;
    color: #f0f0f0;
    padding: 3rem 2rem;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(0, 247, 255, 0.03) 0%, transparent 25%),
        radial-gradient(circle at 80% 70%, rgba(255, 0, 255, 0.03) 0%, transparent 25%);
}

.pr-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    padding-bottom: 1.5rem;
}

.pr-header::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 3px;
    background: linear-gradient(135deg, #00f7ff, #9f76ff);
    border-radius: 3px;
    box-shadow: 0 0 15px rgba(0, 247, 255, 0.5);
}

.pr-title {
    font-family: 'Russo One', sans-serif;
    font-size: 2.8rem;
    margin-bottom: 0.8rem;
    font-weight: 300;
    background: linear-gradient(135deg, #00f7ff, #9f76ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.5px;
}

.subtitle {
    color: #b0b0b0;
    font-size: 1.1rem;
    font-weight: 300;
    letter-spacing: 1px;
}

.teachers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.teacher-card {
    background: #141422;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.3);
    position: relative;
}

.teacher-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 247, 255, 0.15);
    border-color: rgba(0, 247, 255, 0.3);
}

.teacher-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #00f7ff, #9f76ff);
    opacity: 0.8;
}

.photo-placeholder {
    width: 100%;
    height: 280px;
    background: #080810;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 2rem;
}

.photo-placeholder::before {
    content: "";
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(45deg, 
            transparent 48%, 
            rgba(0, 247, 255, 0.1) 49%, 
            rgba(0, 247, 255, 0.1) 51%, 
            transparent 52%),
        linear-gradient(-45deg, 
            transparent 48%, 
            rgba(255, 0, 255, 0.1) 49%, 
            rgba(255, 0, 255, 0.1) 51%, 
            transparent 52%);
    background-size: 20px 20px;
    opacity: 0.3;
}

.placeholder-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.placeholder-icon svg {
    width: 60%;
    height: 60%;
    filter: drop-shadow(0 0 10px rgba(0, 247, 255, 0.5));
    opacity: 0.9;
}

.hexagon-mask {
    position: absolute;
    width: 180px;
    height: 200px;
    background: rgba(0, 247, 255, 0.05);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    z-index: 1;
    animation: float 8s ease-in-out infinite;
}

.hexagon-mask:nth-child(2) {
    width: 220px;
    height: 240px;
    background: rgba(255, 0, 255, 0.05);
    animation-delay: 1s;
    right: -50px;
    bottom: -50px;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.teacher-info {
    padding: 2rem;
    display: flex;
    flex-direction: column;
}

.teacher-name {
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    font-weight: 600;
    color: #f0f0f0;
    position: relative;
    display: inline-block;
}

.teacher-name::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50px;
    height: 2px;
    background: linear-gradient(135deg, #00f7ff, #9f76ff);
    box-shadow: 0 0 15px rgba(0, 247, 255, 0.6);
}

.info-row {
    display: flex;
    margin-bottom: 0.8rem;
    align-items: center;
}

.info-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.2rem 0.5rem;
    background: rgba(0, 247, 255, 0.1);
    border-radius: 4px;
    border: 1px solid rgba(0, 247, 255, 0.3);
    color: #00f7ff;
    text-shadow: 0 0 5px rgba(0, 247, 255, 0.5);
    position: relative;
    min-width: 100px;
    margin-right: 1rem;
    text-align: center;
    flex-shrink: 0;
}

.info-label::before {
    content: "";
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    border: 1px solid rgba(0, 247, 255, 0.5);
    border-radius: 4px;
    pointer-events: none;
    z-index: -1;
}

.info-label.position {
    background: rgba(0, 247, 255, 0.1);
    border-color: rgba(0, 247, 255, 0.3);
    color: #00f7ff;
}

.info-label.degree {
    background: rgba(159, 118, 255, 0.1);
    border-color: rgba(159, 118, 255, 0.3);
    color: #9f76ff;
}

.info-label.title {
    background: rgba(0, 255, 157, 0.1);
    border-color: rgba(0, 255, 157, 0.3);
    color: #00ff9d;
}

.info-value {
    font-size: 0.95rem;
    color: #f0f0f0;
    flex-grow: 1;
}

.info-value.position {
    color: #00f7ff;
    font-weight: 500;
}

.info-value.degree {
    color: #b0b0b0;
    font-weight: 300;
}

.info-value.title {
    color: #9f76ff;
    font-weight: 500;
}

.grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 30px 30px;
    z-index: 0;
}

.publications-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #00f7ff;
    background: rgba(0, 247, 255, 0.1);
    border: 1px solid rgba(0, 247, 255, 0.3);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.publications-btn:hover {
    background: rgba(0, 247, 255, 0.2);
    box-shadow: 0 0 10px rgba(0, 247, 255, 0.3);
}

.publications-btn::after {
    content: "";
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    border: 1px solid rgba(0, 247, 255, 0.5);
    border-radius: 4px;
    pointer-events: none;
    z-index: -1;
}

@media (max-width: 768px) {
    .pr-title {
        font-size: 1.5rem;
    }
    
    .teachers-grid {
        grid-template-columns: 1fr;
    }
    
    .photo-placeholder {
        height: 240px;
    }
}