.presentation-container {
    width: 100vw;
    height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
}

.presentation-header {
    background: #2c3e50;
    color: white;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1e5799 0%, #2989d8 50%, #207cca 51%, #7db9e8 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
}

.logo::before {
    content: '';
    width: 20px;
    height: 20px;
    background: white;
    clip-path: polygon(0% 0%, 100% 0%, 85% 100%, 0% 85%);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.presentation-title {
    font-size: 1.2rem;
    font-weight: 600;
}

.slide-counter {
    font-size: 0.9rem;
    opacity: 0.8;
    white-space: nowrap; /* Add this line */
}

.slide-area {
    flex: 1;
    background: white;
    margin: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.presentation-footer {
    background: #34495e;
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}