/* ===== DC AGENTS LAYOUT STYLES ===== */
/* This file contains layout-specific styles for the sidebar, navbar, and main content */

/* ========================================
   LAYOUT VARIABLES
   ======================================== */
:root {
    /* Layout dimensions */
    --sidebar-width-expanded: 260px;
    --sidebar-width-collapsed: 72px;
    --topbar-height: 56px;

    /* Layout colors - dark sidebar theme */
    --primary: #0f1729;
    --primary-light: #1a2744;
    --accent: var(--dc-blue);
    --accent-hover: #1e4a8f;

    /* Surface colors */
    --surface: #ffffff;
    --surface-hover: #f8fafc;
    --border: #e5e7eb;
    --border-hover: #d1d5db;

    /* Text colors */
    --text-primary: #0f1729;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
}

/* ========================================
   APP LAYOUT CONTAINER
   ======================================== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* ========================================
   COLLAPSIBLE DARK SIDEBAR
   ======================================== */
.sidebar {
    width: var(--sidebar-width-expanded);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--primary);
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: visible;
}

.sidebar.collapsed,
html[data-sidebar-collapsed="true"] .sidebar {
    width: var(--sidebar-width-collapsed);
}

/* Sidebar Header */
.sidebar-header {
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    min-height: 65px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar.collapsed .sidebar-header,
html[data-sidebar-collapsed="true"] .sidebar .sidebar-header {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 0;
    min-height: auto;
}

/* Sidebar Brand */
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    overflow: hidden;
}

.sidebar.collapsed .sidebar-brand,
html[data-sidebar-collapsed="true"] .sidebar .sidebar-brand {
    justify-content: center;
    gap: 0;
    width: 100%;
}

.sidebar-logo {
    width: 36px;
    height: 36px;
    min-width: 36px;
    flex-shrink: 0;
    filter: brightness(0) invert(1);
    object-fit: contain;
}

.sidebar-brand-text {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 1.125rem;
    color: white;
    letter-spacing: -0.03em;
    white-space: nowrap;
    opacity: 1;
    transition: opacity 0.2s ease, width 0.3s ease;
}

.sidebar.collapsed .sidebar-brand-text,
html[data-sidebar-collapsed="true"] .sidebar .sidebar-brand-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    width: 32px;
    height: 32px;
    min-width: 32px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: transparent;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.5);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
    color: white;
    border-color: rgba(255, 255, 255, 0.2);
}

.sidebar-toggle i {
    transition: transform 0.3s ease;
}

.sidebar.collapsed .sidebar-toggle i,
html[data-sidebar-collapsed="true"] .sidebar .sidebar-toggle i {
    transform: rotate(180deg);
}

/* ========================================
   SIDEBAR NAVIGATION
   ======================================== */
.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
    overflow-x: visible;
}

.sidebar.collapsed .sidebar-nav,
html[data-sidebar-collapsed="true"] .sidebar .sidebar-nav {
    overflow: visible;
}

/* Navigation Groups */
.nav-group {
    margin-bottom: 24px;
}

.nav-group-title {
    font-size: 0.6875rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0 12px;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    opacity: 1;
    transition: opacity 0.2s ease;
}

.sidebar.collapsed .nav-group-title,
html[data-sidebar-collapsed="true"] .sidebar .nav-group-title {
    opacity: 0;
    height: 0;
    margin: 0;
    padding: 0;
}

/* Navigation Items */
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.15s ease;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
    text-decoration: none;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}

.nav-item.active {
    background: var(--dc-blue);
    color: white;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: -12px;
    width: 3px;
    height: 24px;
    background: var(--dc-beige);
    border-radius: 0 2px 2px 0;
}

.nav-item i {
    width: 20px;
    min-width: 20px;
    font-size: 1.125rem;
    text-align: center;
}

.nav-item-text {
    font-size: 0.9375rem;
    font-weight: 500;
    opacity: 1;
    transition: opacity 0.2s ease;
}

.sidebar.collapsed .nav-item-text,
html[data-sidebar-collapsed="true"] .sidebar .nav-item-text {
    opacity: 0;
    width: 0;
}

.sidebar.collapsed .nav-item,
html[data-sidebar-collapsed="true"] .sidebar .nav-item {
    justify-content: center;
    gap: 0;
    padding: 12px;
}

/* Navigation Badges */
.nav-badge {
    margin-left: auto;
    background: var(--dc-blue);
    color: white;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 10px;
    opacity: 1;
    transition: all 0.2s ease;
}

.nav-item.active .nav-badge {
    background: rgba(255, 255, 255, 0.3);
}

.sidebar.collapsed .nav-badge,
html[data-sidebar-collapsed="true"] .sidebar .nav-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    padding: 2px 6px;
    font-size: 0.625rem;
    opacity: 1;
    min-width: 18px;
    text-align: center;
}

/* Sidebar Collapsed Tooltips */
.sidebar.collapsed .nav-item::after,
html[data-sidebar-collapsed="true"] .sidebar .nav-item::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 12px);
    background: var(--primary);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-8px);
    transition: all 0.2s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sidebar.collapsed .nav-item:hover::after,
html[data-sidebar-collapsed="true"] .sidebar .nav-item:hover::after {
    opacity: 1;
    transform: translateX(0);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* ========================================
   HORIZONTAL NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width-expanded);
    right: 0;
    height: var(--topbar-height);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 90;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar.collapsed ~ .navbar,
html[data-sidebar-collapsed="true"] .sidebar ~ .navbar {
    left: var(--sidebar-width-collapsed);
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Breadcrumbs */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 0;
    padding: 0;
    background: transparent;
}

.breadcrumb-item {
    color: var(--text-secondary);
    font-weight: 500;
}

.breadcrumb-item.active {
    color: var(--text-muted);
    font-weight: 400;
}

.breadcrumb-item a {
    color: inherit;
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--text-primary);
}

.breadcrumb-separator {
    color: var(--border);
}

.breadcrumb > .breadcrumb-separator:first-child {
    display: none;
}

/* Topbar Buttons */
.topbar-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    position: relative;
}

.topbar-btn:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.notification-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: #ef4444;
    border-radius: 50%;
    border: 2px solid var(--surface);
}

.navbar-divider {
    width: 1px;
    height: 32px;
    background: var(--border);
    margin: 0 8px;
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 12px 6px 6px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    color: inherit;
}

.user-menu:hover {
    background: var(--surface-hover);
    text-decoration: none;
}

/* ========================================
   DROPDOWN COMPONENT
   ======================================== */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 1000;
    display: none;
    min-width: 200px;
    padding: 8px 0;
    margin: 4px 0 0;
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    list-style: none;
}

.dropdown-menu-end {
    right: 0;
    left: auto;
}

.dropdown.show .dropdown-menu {
    display: block;
    animation: dropdownFadeIn 0.15s ease;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 10px 16px;
    color: var(--text-primary);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background 0.15s ease;
}

.dropdown-item:hover {
    background: var(--surface-hover);
    text-decoration: none;
    color: var(--text-primary);
}

.dropdown-item i {
    width: 20px;
    color: var(--text-muted);
}

.dropdown-header {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dropdown-divider {
    height: 0;
    margin: 8px 0;
    border: 0;
    border-top: 1px solid var(--border);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--dc-blue), var(--dc-light-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8125rem;
    font-weight: 600;
}

.user-info {
    text-align: left;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.user-menu i.fa-chevron-down {
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* ========================================
   MAIN CONTENT AREA
   ======================================== */
.main-content {
    margin-left: var(--sidebar-width-expanded);
    margin-top: var(--topbar-height);
    flex: 1;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar.collapsed ~ .main-content,
html[data-sidebar-collapsed="true"] .sidebar ~ .main-content {
    margin-left: var(--sidebar-width-collapsed);
}

/* Dashboard Container */
.dashboard {
    max-width: 1280px;
    margin: 0 auto;
    padding: 48px 32px;
}

/* ========================================
   RESPONSIVE BREAKPOINTS
   ======================================== */
@media (max-width: 1024px) {
    .dashboard {
        padding: 32px 24px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .navbar {
        left: 0 !important;
    }

    .main-content {
        margin-left: 0 !important;
    }

    /* Mobile menu toggle button */
    .mobile-menu-toggle {
        display: flex;
    }
}

@media (max-width: 640px) {
    .sidebar {
        display: none;
    }

    .main-content {
        margin-left: 0;
    }

    .navbar {
        left: 0;
        padding: 0 16px;
    }

    .dashboard {
        padding: 24px 16px;
    }

    .user-info {
        display: none;
    }
}

/* ========================================
   ACCESSIBILITY & FOCUS STATES
   ======================================== */
.nav-item:focus-visible,
.topbar-btn:focus-visible,
.user-menu:focus-visible,
.sidebar-toggle:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}