/* Shared Slide Styles */
body {
    font-family: 'Zen Kaku Gothic New', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    overflow: hidden;
}

.slide-container {
    width: 100%;
    max-width: 1200px;
    height: 90vh;
    position: relative;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.slide {
    flex: 1;
    display: none;
    /* Hidden by default */
    flex-direction: column;
    padding: 60px;
    overflow-y: auto;
    animation: fadeIn 0.5s ease;
}

.slide.active {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide Header */
.slide-header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.slide-number {
    position: absolute;
    top: -20px;
    right: 0;
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #555;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    font-family: 'Cinzel', serif;
    font-size: 3rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 30px;
    border-bottom: 2px solid #a8edea;
    padding-bottom: 10px;
    display: inline-block;
}

h3 {
    font-size: 1.5rem;
    color: #34495e;
    margin: 20px 0 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Content Cards */
.card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.card-icon {
    font-size: 1.5em;
    margin-right: 10px;
}

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

/* Benefit/Feature Cards */
.feature-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: white;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

/* Controls */
.controls {
    padding: 20px 40px;
    background: white;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-btn {
    padding: 12px 25px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn-prev {
    background: #f1f2f6;
    color: #555;
}

.btn-next {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-home {
    background: transparent;
    color: #7f8c8d;
    border: 1px solid #bdc3c7;
}

.nav-btn:hover {
    transform: translateY(-2px);
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: #f1f2f6;
    border-radius: 3px;
    margin: 0 30px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #a8edea 0%, #fed6e3 100%);
    width: 0%;
    transition: width 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
    .slide-container {
        height: 100vh;
        border-radius: 0;
    }

    .slide {
        padding: 30px 20px;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .controls {
        padding: 15px 20px;
    }

    .progress-bar {
        margin: 0 15px;
    }
}