/* ===================================================================
   ERWEITERTE FOKUS-MODUS STYLES
   Optimiert für Desktop und Mobile Touch-Geräte
   =================================================================== */

/* ===================================================================
   FLOATING NAVIGATION (Unten zentriert)
   =================================================================== */

body.focus-mode .focus-nav,
body.focus-mode #floating-navigation-focus {
    display: flex;
    flex-direction: column;
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    gap: 0.5rem;
    z-index: 1000;
    align-items: center;
    /* Mobile Touch Optimierung */
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Hauptnavigation (Prev/Page/Next/Chapter) — ein-/ausblendbar */
body.focus-mode .focus-nav-main {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    background: var(--white);
    padding: 0.75rem 1.25rem;
    border-radius: 50px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 2px solid var(--border-color);
    transition: opacity .25s, transform .25s;
}

/* Versteckter Zustand */
body.focus-mode .focus-nav-main.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

/* Toolbar-Zeile (Toggle + Settings + Exit) — immer sichtbar */
body.focus-mode .focus-nav-toolbar {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    background: var(--white);
    padding: 0.4rem 0.75rem;
    border-radius: 50px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
}

/* Toggle-Button für Nav ein/aus */
body.focus-mode .focus-toolbar-toggle {
    min-width: 38px;
    min-height: 38px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: var(--accent-color);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

body.focus-mode .focus-toolbar-toggle:hover,
body.focus-mode .focus-toolbar-toggle:active {
    transform: scale(1.1);
    background: var(--primary-color);
}

/* Hilfe-Button in der Toolbar */
body.focus-mode .focus-help-btn {
    min-width: 38px;
    min-height: 38px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: #64748b;
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

body.focus-mode .focus-help-btn:hover,
body.focus-mode .focus-help-btn:active {
    transform: scale(1.1);
    background: #475569;
}

/* Exit Button im Fokus-Modus */
body.focus-mode .focus-exit-btn {
    min-width: 44px; /* Touch-optimiert */
    min-height: 44px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: #ef4444;
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Mobile Touch */
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

body.focus-mode .focus-exit-btn:hover,
body.focus-mode .focus-exit-btn:active {
    transform: scale(1.1);
    background: #dc2626;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

/* Settings Button im Fokus-Modus */
body.focus-mode .focus-settings-btn {
    min-width: 44px; /* Touch-optimiert */
    min-height: 44px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--primary-color);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Mobile Touch */
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

body.focus-mode .focus-settings-btn:hover,
body.focus-mode .focus-settings-btn:active {
    transform: scale(1.1);
    background: var(--accent-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Kapitel-Selector im Fokus-Modus */
body.focus-mode .focus-chapter-selector select {
    padding: 0.75rem 1rem; /* Größer für Touch */
    min-height: 44px; /* Touch-optimiert */
    border: 2px solid var(--border-color);
    border-radius: 20px;
    background: var(--white);
    color: var(--text-color);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
    /* Mobile Touch */
    -webkit-tap-highlight-color: transparent;
}

body.focus-mode .focus-chapter-selector select:hover,
body.focus-mode .focus-chapter-selector select:active {
    border-color: var(--accent-color);
    background-color: #f8fafc;
}

body.focus-mode .focus-chapter-selector select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Navigation Buttons (Prev/Next) */
body.focus-mode .focus-nav button:not(.focus-exit-btn):not(.focus-settings-btn) {
    min-width: 50px; /* Touch-optimiert */
    min-height: 50px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: var(--accent-color);
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    /* Mobile Touch */
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

body.focus-mode .focus-nav button:not(.focus-exit-btn):not(.focus-settings-btn):hover:not(:disabled),
body.focus-mode .focus-nav button:not(.focus-exit-btn):not(.focus-settings-btn):active:not(:disabled) {
    transform: scale(1.15);
    background: var(--primary-color);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

body.focus-mode .focus-nav button:not(.focus-exit-btn):not(.focus-settings-btn):disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: scale(1);
}

/* Page Indicator */
body.focus-mode .focus-nav .page-indicator {
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    color: var(--text-color);
    font-size: 1rem;
    font-weight: 600;
    min-width: 100px;
    min-height: 44px; /* Touch-optimiert */
    justify-content: center;
    background: #f8fafc;
    border-radius: 20px;
}

/* ===================================================================
   SIDE NAVIGATION (Links/Rechts Buttons)
   =================================================================== */

body.focus-mode .focus-nav-side,
body.focus-mode #side-navigation-focus {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none; /* Durchklickbar */
    z-index: 999;
}

/* Basis-Styles für Side Navigation Buttons */
body.focus-mode .focus-nav-side button,
body.focus-mode #side-navigation-focus button {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    min-width: 70px; /* Touch-optimiert - größer */
    min-height: 70px;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--white);
    color: var(--accent-color);
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
    opacity: 0.6; /* Etwas sichtbarer auf Mobile */
    pointer-events: auto;
    /* Mobile Touch */
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    touch-action: manipulation;
}

/* Previous Button - Links */
body.focus-mode .focus-nav-side .prev-page-focus,
body.focus-mode #side-navigation-focus .prev-page-focus {
    left: 1.5rem; /* Etwas weiter innen für bessere Erreichbarkeit */
}

/* Next Button - Rechts */
body.focus-mode .focus-nav-side .next-page-focus,
body.focus-mode #side-navigation-focus .next-page-focus {
    right: 1.5rem; /* Etwas weiter innen für bessere Erreichbarkeit */
}

/* Hover/Active States */
body.focus-mode .focus-nav-side button:hover:not(:disabled),
body.focus-mode #side-navigation-focus button:hover:not(:disabled),
body.focus-mode .focus-nav-side button:active:not(:disabled),
body.focus-mode #side-navigation-focus button:active:not(:disabled) {
    opacity: 1;
    transform: translateY(-50%) scale(1.15);
    background: var(--accent-color);
    color: white;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

body.focus-mode .focus-nav-side button:disabled,
body.focus-mode #side-navigation-focus button:disabled {
    opacity: 0.2;
    cursor: not-allowed;
}

/* ===================================================================
   PROGRESS BAR
   =================================================================== */

body.focus-mode .focus-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 5px; /* Etwas dicker für bessere Sichtbarkeit */
    background: rgba(0, 0, 0, 0.1);
    z-index: 1001;
}

body.focus-mode .focus-progress-bar {
    height: 100%;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

/* ===================================================================
   INFO OVERLAY
   =================================================================== */

.focus-mode-info {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
    padding: 1rem; /* Padding für Mobile */
}

.focus-info-content {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh; /* Scrollbar bei kleinen Screens */
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.focus-info-content h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.focus-info-content p {
    color: var(--text-color);
    line-height: 1.8;
    text-align: left;
    margin-bottom: 1rem;
}

.focus-info-content button {
    min-height: 48px; /* Touch-optimiert */
    padding: 0.75rem 2rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    /* Mobile Touch */
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.focus-info-content button:hover,
.focus-info-content button:active {
    background: var(--primary-color);
    transform: scale(1.05);
}

/* ===================================================================
   ANIMATIONS
   =================================================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

body.focus-mode {
    scroll-behavior: smooth;
}

/* Seitenmenü-Button im Fokus-Modus ausblenden */
body.focus-mode .mobile-menu-toggle {
    display: none !important;
}

body.focus-mode .story-content {
    animation: fadeInContent 0.4s ease;
}

@keyframes fadeInContent {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Lesehilfe - Gradient oben */
body.focus-mode .story-content::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, var(--background), transparent);
    pointer-events: none;
    z-index: 1;
}

/* ===================================================================
   RESPONSIVE - TABLET (768px - 1024px)
   =================================================================== */

@media (min-width: 768px) and (max-width: 1024px) {
    body.focus-mode .focus-nav,
    body.focus-mode #floating-navigation-focus {
        padding: 0.85rem 1.25rem;
        gap: 0.6rem;
    }
    
    body.focus-mode .focus-nav-side button,
    body.focus-mode #side-navigation-focus button {
        width: 65px;
        height: 65px;
        min-width: 65px;
        min-height: 65px;
    }
}

/* ===================================================================
   RESPONSIVE - MOBILE (< 768px)
   =================================================================== */

@media (max-width: 767px) {
    /* Floating Navigation — Mobile: volle Breite */
    body.focus-mode .focus-nav,
    body.focus-mode #floating-navigation-focus {
        bottom: 0.5rem;
        left: 0;
        right: 0;
        transform: none;
        width: 100%;
        padding: 0 0.5rem;
        gap: 0.4rem;
        align-items: stretch;
    }

    /* Hauptnav - volle Breite auf Mobile */
    body.focus-mode .focus-nav-main {
        width: 100%;
        padding: 0.6rem 0.75rem;
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
        border-radius: 14px;
        box-sizing: border-box;
    }

    /* Prev + Page-Indicator + Next: volle Zeile nutzen */
    body.focus-mode .focus-nav-main > button {
        flex: 0 0 auto;
    }
    body.focus-mode .focus-nav-main .page-indicator {
        flex: 1 1 auto;
    }

    /* Toolbar auch volle Breite */
    body.focus-mode .focus-nav-toolbar {
        justify-content: center;
    }

    /* Toolbar */
    body.focus-mode .focus-nav-toolbar {
        padding: 0.35rem 0.75rem;
        gap: 0.5rem;
    }

    /* Buttons - Touch-optimierte Größen */
    body.focus-mode .focus-nav-main button:not(.focus-exit-btn):not(.focus-settings-btn):not(.focus-toolbar-toggle) {
        min-width: 48px;
        min-height: 48px;
        width: 48px;
        height: 48px;
        font-size: 1.3rem;
    }

    body.focus-mode .focus-exit-btn,
    body.focus-mode .focus-settings-btn,
    body.focus-mode .focus-toolbar-toggle {
        min-width: 40px;
        min-height: 40px;
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }

    /* Kapitel-Selector - volle Breite */
    body.focus-mode .focus-chapter-selector {
        width: 100%;
        order: 10; /* Ganz nach unten in Flex */
    }

    body.focus-mode .focus-chapter-selector select {
        width: 100%;
        padding: 0.65rem 2.5rem 0.65rem 1rem;
        font-size: 0.85rem;
        text-overflow: ellipsis;
    }

    /* Page Indicator - Mobile */
    body.focus-mode .focus-nav .page-indicator {
        min-width: 85px;
        font-size: 0.95rem;
        padding: 0 1rem;
        min-height: 40px;
    }
    
    /* Side Navigation - Mobile größer und besser positioniert */
    body.focus-mode .focus-nav-side button,
    body.focus-mode #side-navigation-focus button {
        min-width: 60px;
        min-height: 60px;
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
        opacity: 0.7; /* Besser sichtbar auf Mobile */
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    }
    
    /* Positionierung angepasst für Daumen-Erreichbarkeit */
    body.focus-mode .focus-nav-side .prev-page-focus,
    body.focus-mode #side-navigation-focus .prev-page-focus {
        left: 0.75rem;
        top: 50%;
    }
    
    body.focus-mode .focus-nav-side .next-page-focus,
    body.focus-mode #side-navigation-focus .next-page-focus {
        right: 0.75rem;
        top: 50%;
    }
    
    /* Info Content - Mobile */
    .focus-info-content {
        padding: 1.5rem;
        margin: 0.5rem;
    }
    
    .focus-info-content h3 {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }
    
    .focus-info-content p {
        font-size: 0.95rem;
        margin-bottom: 0.75rem;
    }
}

/* ===================================================================
   RESPONSIVE - EXTRA SMALL MOBILE (< 400px)
   =================================================================== */

@media (max-width: 399px) {
    body.focus-mode .focus-nav-main {
        padding: 0.5rem;
        gap: 0.35rem;
        border-radius: 12px;
    }
    
    /* Kleinere Buttons für sehr kleine Screens */
    body.focus-mode .focus-nav button:not(.focus-exit-btn):not(.focus-settings-btn) {
        min-width: 44px;
        min-height: 44px;
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }
    
    body.focus-mode .focus-exit-btn,
    body.focus-mode .focus-settings-btn {
        min-width: 40px;
        min-height: 40px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    /* Side Buttons etwas kleiner */
    body.focus-mode .focus-nav-side button,
    body.focus-mode #side-navigation-focus button {
        min-width: 54px;
        min-height: 54px;
        width: 54px;
        height: 54px;
        font-size: 1.6rem;
    }
    
    /* Page Indicator kompakter */
    body.focus-mode .focus-nav .page-indicator {
        min-width: 75px;
        font-size: 0.85rem;
        padding: 0 0.75rem;
    }
}

/* ===================================================================
   DARK MODE
   =================================================================== */

[data-theme="dark"] body.focus-mode .focus-nav-main {
    background: #1e1e1e;
    border-color: #2d2d2d;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] body.focus-mode .focus-nav-toolbar {
    background: #1e1e1e;
    border-color: #2d2d2d;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] body.focus-mode .focus-chapter-selector select {
    background: #1e1e1e;
    border-color: #2d2d2d;
    color: #e4e4e4;
}

[data-theme="dark"] body.focus-mode .focus-nav .page-indicator {
    background: #121212;
    color: #e4e4e4;
}

[data-theme="dark"] .focus-info-content {
    background: #1e1e1e;
    color: #e4e4e4;
}

[data-theme="dark"] .focus-info-content h3 {
    color: #3498db;
}

[data-theme="dark"] body.focus-mode .focus-nav-side button,
[data-theme="dark"] body.focus-mode #side-navigation-focus button {
    background: #1e1e1e;
    border-color: #2d2d2d;
    color: #3498db;
}

[data-theme="dark"] body.focus-mode .focus-nav-side button:hover:not(:disabled),
[data-theme="dark"] body.focus-mode #side-navigation-focus button:hover:not(:disabled),
[data-theme="dark"] body.focus-mode .focus-nav-side button:active:not(:disabled),
[data-theme="dark"] body.focus-mode #side-navigation-focus button:active:not(:disabled) {
    background: #3498db;
    color: white;
}

/* ===================================================================
   LANDSCAPE MODE MOBILE
   =================================================================== */

@media (max-height: 500px) and (orientation: landscape) {
    /* Floating Navigation höher positionieren im Landscape */
    body.focus-mode .focus-nav,
    body.focus-mode #floating-navigation-focus {
        bottom: 0.5rem;
        padding: 0.5rem 0.75rem;
    }
    
    /* Side Buttons etwas tiefer für bessere Erreichbarkeit */
    body.focus-mode .focus-nav-side button,
    body.focus-mode #side-navigation-focus button {
        top: 55%;
    }
}

/* ===================================================================
   PRINT
   =================================================================== */

@media print {
    body.focus-mode .focus-nav,
    body.focus-mode #floating-navigation-focus,
    body.focus-mode .focus-nav-side,
    body.focus-mode #side-navigation-focus,
    .focus-mode-info,
    .focus-progress {
        display: none !important;
    }
}