:root {
    --bg-color: #0f172a;
    --accent-color: #ffffff;
    /* Changed accent to white for new theme */
    --theme-bg: #872434;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --shadow-premium: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/** {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image:
        radial-gradient(at 0% 0%, hsla(253, 16%, 7%, 1) 0, transparent 50%),
        radial-gradient(at 50% 0%, hsla(225, 39%, 30%, 1) 0, transparent 50%),
        radial-gradient(at 100% 0%, hsla(339, 49%, 30%, 1) 0, transparent 50%);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
*/
.app-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width:95%;
    margin:0 auto;
}

/* Header Styling */
.glass-header {
    height: 70px;
    background: var(--theme-bg);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    z-index: 100;
}

.logo {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 1px;
    color:#fff;
}

.logo span {
    color: #fff;
}

.header-controls {
    display: flex;
    gap: 15px;
}

.icon-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    width: 100px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    border-color: #ffffff;
}

.icon-btn i {
    width: 20px;
    height: 20px;
}

/* Main Content Area */
.flipbook-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    /* Remove padding to maximize space */
    perspective: 2000px;
    position: relative;
    overflow: hidden;
    /* Hide overflow for zoom effect */
    background: #d1d1d1;
    /* Full transparency for the wrapper */
}

.flipbook-container {
    box-shadow: var(--shadow-premium);
    transition: transform 0.1s ease-out;
    will-change: transform;
    /* Hint to browser for hardware acceleration */
    transform-origin: 0 0;
    /* Changed to top-left for easier coordinate math with translate */
    cursor: grab;
    background: transparent;
    /* Full transparency for the container */
}

.flipbook-container:active {
    cursor: grabbing;
}

.page {
    background-color: transparent;
    /* Transparent page background */
}

.page-content {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-content img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Footer Styling */
.glass-footer {
    height: 80px;
    background: var(--theme-bg);
    border-top: 2px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: #ffffff;
    color: var(--theme-bg);
    transform: translateY(-2px);
}

.nav-btn i {
    width: 18px;
    height: 18px;
}

.page-indicator {
    background: rgba(255, 255, 255, 0.05);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
}

#currentPage {
    color: var(--text-primary);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .glass-header {
        height: 60px;
        padding: 0 15px;
    }

    .logo {
        font-size: 1.1rem;
    }

    .header-controls {
        gap: 8px;
    }

    .icon-btn {
        width: 34px;
        height: 34px;
        border-radius: 8px;
    }

    .glass-footer {
        height: 70px;
    }

    .nav-controls {
        gap: 10px;
    }

    .nav-btn {
        padding: 8px 12px;
    }

    .nav-btn span {
        display: none;
    }

    .page-indicator {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .flipbook-wrapper {
        padding: 10px;
    }

    .logo span {
        display: none;
    }
}