/* ============================================
   RAGNARÖK - PDF Reader Styles
   Embedded PDF viewer with LCARS frame
   ============================================ */

/* === PDF Reader Layout === */
.pdf-reader {
    padding-top: 50px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.reader-container {
    flex: 1;
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    gap: 20px;
    width: 100%;
}

/* === Main PDF Panel === */
.pdf-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-panel);
    border: 2px solid var(--lcars-orange);
    border-radius: 20px;
    overflow: hidden;
}

.pdf-header {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background: var(--bg-dark);
    border-bottom: 2px solid var(--lcars-orange);
    gap: 15px;
}

.pdf-chapter-info {
    flex: 1;
}

.pdf-chapter-number {
    font-family: var(--font-lcars);
    font-size: 0.9rem;
    color: var(--lcars-cyan);
    letter-spacing: 0.1em;
}

.pdf-chapter-title {
    font-family: var(--font-lcars);
    font-size: 1.3rem;
    color: var(--lcars-orange);
    letter-spacing: 0.1em;
}

.pdf-controls {
    display: flex;
    gap: 10px;
}

.pdf-control-btn {
    background: var(--bg-card);
    border: 1px solid var(--lcars-cyan);
    color: var(--lcars-cyan);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pdf-control-btn:hover {
    background: var(--lcars-cyan);
    color: var(--bg-dark);
}

/* === PDF Embed Container === */
.pdf-embed-container {
    flex: 1;
    position: relative;
    min-height: 70vh;
    background: #f5f5f5;
    transition: all 0.3s ease;
}

/* === Dark Mode for PDF Reader === */
.pdf-embed-container.dark-mode {
    background: #1a1a1a;
}

.pdf-embed-container.dark-mode .pdf-embed {
    filter: invert(0.88) hue-rotate(180deg);
}

/* Dark mode toggle button styling */
.dark-mode-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
}

.dark-mode-toggle .mode-icon {
    font-size: 1rem;
}

.dark-mode-toggle .mode-text {
    font-size: 0.75rem;
}

.pdf-embed {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    border: none;
}

.pdf-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-mono);
    color: var(--lcars-cyan);
    letter-spacing: 0.2em;
    animation: pulse-text 1.5s ease-in-out infinite;
}

/* === PDF Navigation Footer === */
.pdf-nav-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: var(--bg-dark);
    border-top: 2px solid var(--lcars-orange);
}

.pdf-nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--lcars-cyan);
    text-decoration: none;
    border: 1px solid var(--lcars-cyan);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.pdf-nav-btn:hover {
    background: var(--lcars-cyan);
    color: var(--bg-dark);
}

.pdf-nav-btn.disabled {
    opacity: 0.3;
    pointer-events: none;
}

.pdf-nav-btn.prev {
    border-radius: 20px 5px 5px 20px;
}

.pdf-nav-btn.next {
    border-radius: 5px 20px 20px 5px;
}

.pdf-index-btn {
    padding: 10px 25px;
    background: var(--lcars-orange);
    color: var(--bg-dark);
    font-family: var(--font-lcars);
    font-weight: 700;
    letter-spacing: 0.1em;
    border: none;
    border-radius: 10px;
}

.pdf-index-btn:hover {
    background: var(--lcars-cyan);
    box-shadow: 0 0 20px rgba(0, 204, 255, 0.5);
}

/* === Side Panel === */
.side-panel {
    width: 280px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* === Support Card === */
.support-card {
    background: var(--bg-panel);
    border: 2px solid var(--lcars-purple);
    border-radius: 15px;
    overflow: hidden;
}

.support-header {
    background: var(--lcars-purple);
    color: var(--bg-dark);
    font-family: var(--font-lcars);
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    padding: 12px 15px;
    text-align: center;
}

.support-content {
    padding: 20px;
}

.support-text {
    font-family: var(--font-reading);
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 15px;
}

.support-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--lcars-purple), #9966cc);
    color: white;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    margin-bottom: 10px;
}

.support-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(204, 153, 255, 0.4);
}

.support-btn.primary {
    background: linear-gradient(135deg, var(--lcars-orange), #cc7700);
}

.support-btn.primary:hover {
    box-shadow: 0 5px 20px rgba(255, 153, 0, 0.4);
}

/* === Chapter List Card === */
.chapters-card {
    background: var(--bg-panel);
    border: 2px solid var(--lcars-cyan);
    border-radius: 15px;
    overflow: hidden;
    flex: 1;
}

.chapters-header {
    background: var(--lcars-cyan);
    color: var(--bg-dark);
    font-family: var(--font-lcars);
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    padding: 12px 15px;
    text-align: center;
}

.chapters-list {
    padding: 10px;
    max-height: 300px;
    overflow-y: auto;
}

.chapter-mini-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    color: var(--text-dim);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    border-radius: 5px;
    transition: all 0.2s ease;
}

.chapter-mini-link:hover {
    background: var(--bg-card);
    color: var(--lcars-cyan);
}

.chapter-mini-link.active {
    background: var(--bg-card);
    color: var(--lcars-orange);
    border-left: 3px solid var(--lcars-orange);
}

.chapter-mini-num {
    color: var(--lcars-cyan);
    min-width: 35px;
}

/* === Reading Progress === */
.progress-card {
    background: var(--bg-panel);
    border: 2px solid var(--lcars-orange);
    border-radius: 15px;
    padding: 15px;
}

.progress-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.progress-bar {
    height: 8px;
    background: var(--bg-dark);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--lcars-orange), var(--lcars-cyan));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-text {
    font-family: var(--font-lcars);
    font-size: 0.85rem;
    color: var(--lcars-orange);
    text-align: right;
    margin-top: 5px;
}

/* === Scrollbar Styling === */
.chapters-list::-webkit-scrollbar {
    width: 6px;
}

.chapters-list::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

.chapters-list::-webkit-scrollbar-thumb {
    background: var(--lcars-cyan);
    border-radius: 3px;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .reader-container {
        flex-direction: column;
    }

    .side-panel {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .support-card,
    .chapters-card {
        flex: 1;
        min-width: 250px;
    }

    .progress-card {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .pdf-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .pdf-controls {
        width: 100%;
        justify-content: flex-end;
    }

    .pdf-nav-footer {
        flex-direction: column;
        gap: 10px;
    }

    .pdf-nav-btn,
    .pdf-index-btn {
        width: 100%;
        justify-content: center;
    }

    .side-panel {
        flex-direction: column;
    }

    .support-card,
    .chapters-card {
        width: 100%;
    }
}