/* =============================================
   MOBIX Presentation - Presentation Screen
   ============================================= */

.presentation-screen {
    position: fixed;
    inset: 0;
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--primary-900) 100%);
    display: none;
    flex-direction: column;
}

.presentation-screen.active {
    display: flex;
}

/* Navigation Controls */
.nav-controls {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-6);
    z-index: var(--z-sticky);
}

.nav-controls.active {
    display: flex;
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

/* Admin Controls (legacy) */
.admin-controls {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-6);
    z-index: var(--z-sticky);
}

.admin-controls.active {
    display: flex;
}

.admin-left,
.admin-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.admin-badge {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--white);
}

.slide-counter {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--gray-300);
}

.slide-counter .divider {
    color: var(--gray-600);
}

.slide-counter span:first-child {
    color: var(--primary-400);
    font-weight: 700;
}

/* Navigation Buttons */
.nav-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--white);
    transition: all var(--transition-normal);
}

.nav-btn:hover {
    background: var(--primary-600);
    border-color: var(--primary-500);
    transform: scale(1.05);
}

.nav-btn:active {
    transform: scale(0.95);
}

.nav-btn svg {
    width: 20px;
    height: 20px;
}

/* Logout Button */
.logout-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-lg);
    color: #ef4444;
    transition: all var(--transition-normal);
    margin-left: var(--spacing-2);
    cursor: pointer;
    z-index: 1000;
    position: relative;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.4);
    border-color: #ef4444;
    transform: scale(1.05);
}

.logout-btn svg {
    width: 20px;
    height: 20px;
}

.logout-btn-small {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    color: #ef4444;
    transition: all var(--transition-normal);
    margin-left: var(--spacing-2);
    cursor: pointer;
    z-index: 1000;
    position: relative;
}

.logout-btn-small:hover {
    background: rgba(239, 68, 68, 0.4);
    border-color: #ef4444;
}

.logout-btn-small svg {
    width: 16px;
    height: 16px;
}

/* Viewer Indicator */
.viewer-indicator {
    position: fixed;
    top: var(--spacing-4);
    right: var(--spacing-4);
    display: none;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-4);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    z-index: var(--z-sticky);
}

.viewer-indicator.active {
    display: flex;
}

.viewer-badge {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--gray-700);
    border-radius: var(--radius-sm);
    color: var(--gray-300);
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    z-index: var(--z-sticky);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    transition: width var(--transition-slow);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
    box-shadow: 0 0 10px var(--primary-500);
}

/* Slides Container */
.slides-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px var(--spacing-8) var(--spacing-8);
    overflow: hidden;
}

/* Watermark */
.watermark {
    position: fixed;
    bottom: var(--spacing-8);
    right: var(--spacing-8);
    opacity: 0.05;
    pointer-events: none;
    z-index: var(--z-base);
}

.watermark-logo {
    width: 150px;
    height: auto;
}

/* =============================================
   MOBILE RESPONSIVE - Presentation Screen
   ============================================= */

@media (max-width: 480px) {
    /* Admin Controls */
    .admin-controls {
        height: 50px;
        padding: 0 var(--spacing-3);
    }
    
    .admin-left,
    .admin-right {
        gap: var(--spacing-2);
    }
    
    .admin-badge {
        padding: 3px 8px;
        font-size: 0.6rem;
        letter-spacing: 0.05em;
    }
    
    .slide-counter {
        font-size: var(--font-size-sm);
    }
    
    .nav-btn {
        width: 36px;
        height: 36px;
    }
    
    .nav-btn svg {
        width: 16px;
        height: 16px;
    }
    
    .logout-btn {
        width: 36px;
        height: 36px;
        margin-left: var(--spacing-1);
    }
    
    .logout-btn svg {
        width: 16px;
        height: 16px;
    }
    
    /* Viewer Indicator */
    .viewer-indicator {
        top: var(--spacing-2);
        right: var(--spacing-2);
        padding: var(--spacing-1) var(--spacing-2);
        gap: var(--spacing-2);
    }
    
    .viewer-badge {
        font-size: 0.6rem;
        padding: 2px 6px;
    }
    
    .logout-btn-small {
        width: 28px;
        height: 28px;
        margin-left: var(--spacing-1);
    }
    
    .logout-btn-small svg {
        width: 14px;
        height: 14px;
    }
    
    /* Slides Container */
    .slides-container {
        padding: 55px var(--spacing-2) var(--spacing-2);
    }
    
    /* Progress Bar */
    .progress-bar {
        height: 3px;
    }
    
    /* Watermark */
    .watermark {
        bottom: var(--spacing-4);
        right: var(--spacing-4);
    }
    
    .watermark-logo {
        width: 80px;
    }
}

/* Extra small phones */
@media (max-width: 375px) {
    .admin-controls {
        height: 45px;
        padding: 0 var(--spacing-2);
    }
    
    .admin-badge {
        display: none;
    }
    
    .slide-counter {
        font-size: var(--font-size-xs);
    }
    
    .nav-btn {
        width: 32px;
        height: 32px;
    }
    
    .logout-btn {
        width: 32px;
        height: 32px;
    }
    
    .watermark-logo {
        width: 60px;
    }
}

/* =============================================
   iPhone 16 / Pro / Pro Max (Dynamic Island)
   ============================================= */

@media (max-width: 430px) and (min-height: 800px) {
    /* Safe area for Dynamic Island */
    .admin-controls {
        height: 54px;
        padding-top: env(safe-area-inset-top, 10px);
        padding-left: max(var(--spacing-3), env(safe-area-inset-left));
        padding-right: max(var(--spacing-3), env(safe-area-inset-right));
    }
    
    .viewer-indicator {
        top: max(var(--spacing-2), env(safe-area-inset-top, 10px));
        right: max(var(--spacing-2), env(safe-area-inset-right));
    }
    
    /* Slides container with safe area */
    .slides-container {
        padding-top: 58px;
        padding-bottom: max(10px, env(safe-area-inset-bottom));
        padding-left: max(8px, env(safe-area-inset-left));
        padding-right: max(8px, env(safe-area-inset-right));
    }
    
    .progress-bar {
        bottom: env(safe-area-inset-bottom, 0);
    }
}