/**
 * Layout Styles - Application layout and structure
 * Version: 3.0.0
 */

/* App Container */
#app {
    display: flex;
    min-height: 100vh;
    background: var(--gradient-mesh);
    opacity: 0;
    transition: opacity var(--transition);
}

/* Sidebar */
#sidebar {
    width: 320px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    transition: width var(--transition), transform var(--transition);
    position: relative;
    z-index: var(--z-sticky);
}

#sidebar.collapsed {
    width: 60px;
}

#sidebar.collapsed .nav-text,
#sidebar.collapsed .nav-header h3,
#sidebar.collapsed .progress-summary,
#sidebar.collapsed .sidebar-footer,
#sidebar.collapsed .brand-text {
    display: none;
}

#sidebar.collapsed .sidebar-brand {
    justify-content: center;
    padding: 15px;
}

#sidebar.collapsed .sidebar-logo {
    width: 30px;
    height: 30px;
}

#sidebar.collapsed .nav-item {
    justify-content: center;
}

/* Sidebar Brand */
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 153, 255, 0.05));
    border-bottom: 2px solid rgba(0, 212, 255, 0.2);
}

.sidebar-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    filter: brightness(1.1);
}

.brand-text h2 {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 1px;
    margin: 0;
    background: linear-gradient(135deg, #00d4ff, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-text span {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* Navigation */
#navigation {
    flex: 1;
    overflow-y: auto;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.nav-list {
    padding: var(--spacing-md);
    margin: 0;
    flex-shrink: 0;
}

.nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

.nav-header h3 {
    color: var(--text-light);
    font-size: var(--text-lg);
    margin: 0;
}

.nav-toggle {
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: background-color var(--transition-fast);
}

.nav-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-list {
    list-style: none;
    padding: var(--spacing-md);
    padding-bottom: 0;
    margin: 0;
}

.nav-item {
    margin-bottom: var(--spacing-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-light);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: background-color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

.nav-item.active .nav-link {
    background-color: rgba(0, 212, 255, 0.2);
    color: var(--accent-color);
}

.nav-item.active .nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background-color: var(--accent-color);
    border-radius: 0 3px 3px 0;
}

.nav-badge {
    margin-left: auto;
    padding: 2px 6px;
    background-color: var(--accent-color);
    color: var(--text-light);
    font-size: var(--text-xs);
    border-radius: 10px;
    font-weight: 600;
}

.nav-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
    margin-top: auto;
}

.progress-summary {
    color: var(--text-light);
}

.progress-label {
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-xs);
    display: block;
}

.progress-percent {
    font-size: var(--text-sm);
    font-weight: 600;
    display: block;
    text-align: right;
    margin-top: var(--spacing-xs);
}

/* Main Content */
#main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition);
    overflow: hidden;
}

#main-content.sidebar-collapsed {
    margin-left: 0;
}

/* Navigation Footer */
.nav-footer {
    margin-top: auto;
    flex-shrink: 0;
}

/* Sidebar Footer */
.sidebar-footer {
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.95), rgba(20, 40, 65, 0.95));
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 15px;
}

.footer-content {
    text-align: center;
}

.footer-content p {
    margin: 5px 0;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-content .version {
    color: rgba(0, 212, 255, 0.8);
    font-weight: 600;
}

.footer-content .copyright {
    font-size: 0.7rem;
}

.footer-content .support {
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.footer-content .support a {
    color: rgba(0, 212, 255, 0.9);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-content .support a:hover {
    color: #00d4ff;
    text-decoration: underline;
}

/* Header */
#header {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 64px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    padding: var(--spacing-sm);
    cursor: pointer;
    margin-right: var(--spacing-md);
}

.header-title {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.header-title h1 {
    font-size: var(--text-xl);
    color: var(--text-light);
    margin: 0;
    font-weight: 700;
}

.header-subtitle {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Search Container */
#search-container {
    flex: 1;
    max-width: 500px;
    margin: 0 var(--spacing-xl);
}

.search-wrapper {
    position: relative;
}

.search-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    right: var(--spacing-md);
    color: var(--text-muted);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: calc(var(--spacing-xl) + var(--spacing-sm));
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    color: var(--text-light);
    transition: all var(--transition-fast);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2);
}

.search-clear {
    position: absolute;
    right: calc(var(--spacing-xl) + var(--spacing-xs));
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: color var(--transition-fast);
}

.search-clear:hover {
    color: var(--text-light);
}

.search-results {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    max-height: 400px;
    overflow-y: auto;
    z-index: var(--z-dropdown);
    box-shadow: var(--shadow-xl);
}

/* Content Area */
#content {
    flex: 1;
    padding: var(--spacing-xl);
    overflow-y: auto;
    position: relative;
}

.section-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-text {
    color: var(--text-light);
    font-size: var(--text-sm);
}

.section-content {
    animation: fadeIn var(--transition);
}

.section {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: var(--spacing-2xl);
}

.section-header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--text-3xl);
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Section Reset Button */
.section-reset-btn {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(220, 38, 38, 0.2));
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fbbf24;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-reset-btn:hover {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.3), rgba(220, 38, 38, 0.3));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
    color: #fde047;
}

.section-reset-btn:active {
    transform: translateY(0);
}

.section-reset-btn i {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.section-reset-btn:hover i {
    transform: rotate(-360deg);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

.section-body {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    color: var(--text-light);
}

.section-footer {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--glass-border);
}

.section-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

/* Module Shortcuts */
.module-shortcuts {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.module-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    color: var(--text-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.module-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

/* Floating Action Button */
.fab-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: var(--z-fixed);
}

.fab-main {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-accent);
    border: none;
    color: var(--text-light);
    font-size: var(--text-xl);
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.fab-main:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.fab-main.active {
    transform: rotate(45deg);
}

.fab-menu {
    position: absolute;
    bottom: 72px;
    right: 0;
    display: flex;
    flex-direction: column-reverse;
    gap: var(--spacing-md);
    opacity: 0;
    pointer-events: none;
    transform: scale(0.8);
    transition: all var(--transition-fast);
}

.fab-menu.active {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
}

.fab-item {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.fab-item:hover {
    transform: scale(1.1);
    background: var(--secondary-color);
}

.fab-item::before {
    content: attr(data-tooltip);
    position: absolute;
    right: calc(100% + var(--spacing-md));
    white-space: nowrap;
    background: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--text-sm);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.fab-item:hover::before {
    opacity: 1;
}

/* Toast Container */
#toast-container {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: var(--z-popover);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Mobile Overlay */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-modal) - 1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

/* Responsive Layout */
@media (max-width: 1024px) {
    #sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        z-index: var(--z-modal);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    }
    
    #sidebar.mobile-open {
        transform: translateX(0);
    }
    
    #main-content {
        margin-left: 0;
    }
    
    .header-menu-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    #header {
        padding: var(--spacing-md);
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .header-title {
        flex: 1;
        min-width: 200px;
    }
    
    .header-title h1 {
        font-size: var(--text-lg);
    }
    
    .header-subtitle {
        display: none;
    }
    
    #search-container {
        display: none;
    }
    
    .header-actions {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        width: 100%;
        justify-content: flex-start;
    }
    
    .header-actions .module-btn {
        font-size: 0.85rem;
        padding: 6px 10px;
        flex: 0 0 auto;
    }
    
    .header-actions .module-btn i {
        font-size: 0.9rem;
    }
    
    #content {
        padding: var(--spacing-md);
    }
    
    .section-title {
        font-size: var(--text-2xl);
    }
    
    .section-header-main {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .section-reset-btn {
        width: 100%;
        justify-content: center;
    }
    
    .fab-container {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    #sidebar {
        width: 100%;
    }
    
    #header {
        padding: var(--spacing-sm);
    }
    
    .header-title h1 {
        font-size: 1rem;
        line-height: 1.2;
    }
    
    .header-actions {
        gap: 4px;
        justify-content: space-between;
    }
    
    .header-actions .module-btn {
        font-size: 0.75rem;
        padding: 5px 8px;
        flex: 1;
        max-width: calc(33.33% - 4px);
        min-width: 0;
    }
    
    .header-actions .module-btn span {
        display: none;
    }
    
    .header-actions .module-btn i {
        margin: 0;
    }
    
    .section-body {
        padding: var(--spacing-md);
    }
    
    .section-actions {
        flex-direction: column;
    }
    
    .section-actions .btn {
        width: 100%;
    }
}

/* Print Layout */
@media print {
    #sidebar,
    #header,
    .fab-container,
    #toast-container,
    .module-shortcuts,
    .section-footer {
        display: none;
    }
    
    #main-content {
        margin: 0;
    }
    
    #content {
        padding: 0;
    }
    
    .section-body {
        background: white;
        border: 1px solid #ddd;
        color: black;
    }
}