/*
 * dashboard.css — FieldSync Dashboard Layout System
 * Sidebar, topbar, stat cards, responsive grid
 *
 * Depends on: theme.css (CSS variables must be loaded first)
 */

/* ------------------------------------------------------------------ */
/* Layout Shell                                                         */
/* ------------------------------------------------------------------ */

.layout-wrapper {
    display: flex;
    min-height: 100vh;
    background-color: var(--bg-primary);
}

.layout-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    margin-left: var(--spacing-sidebar);
    transition: margin-left var(--transition-base);
}

/* ------------------------------------------------------------------ */
/* Sidebar                                                              */
/* ------------------------------------------------------------------ */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--spacing-sidebar);
    height: 100vh;
    background-color: var(--dm-navy-deep);
    display: flex;
    flex-direction: column;
    z-index: var(--z-sidebar);
    overflow: hidden;
    transition: width var(--transition-base);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.20);
}

.sidebar.collapsed {
    width: var(--spacing-sidebar-collapsed);
}

/* Sidebar — Brand */
.sidebar-brand {
    padding: 1.5rem 1.25rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    flex-shrink: 0;
}

.sidebar-brand-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
}

.sidebar-brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--dm-green) 0%, var(--dm-green-dim) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
    color: #fff;
    font-family: var(--font-heading);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(122, 182, 72, 0.35);
}

.sidebar-brand-text {
    overflow: hidden;
    transition: opacity var(--transition-base), width var(--transition-base);
}

.sidebar-brand-name {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 800;
    color: #ffffff;
    white-space: nowrap;
    line-height: 1.2;
}

.sidebar-brand-name span {
    color: var(--dm-green);
}

.sidebar-brand-sub {
    display: block;
    font-size: 0.6875rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.40);
    white-space: nowrap;
    margin-top: 1px;
    letter-spacing: 0.02em;
}

.sidebar.collapsed .sidebar-brand-text {
    opacity: 0;
    pointer-events: none;
    width: 0;
}

/* Sidebar — Navigation */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.75rem 0;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.08) transparent;
}

.sidebar-nav::-webkit-scrollbar { width: 3px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 2px; }

.nav-section {
    margin-bottom: 0.25rem;
}

.nav-section-label {
    display: block;
    padding: 0.75rem 1.25rem 0.375rem;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.28);
    white-space: nowrap;
    overflow: hidden;
    transition: opacity var(--transition-base);
}

.sidebar.collapsed .nav-section-label {
    opacity: 0;
}

.nav-item {
    position: relative;
    display: block;
    padding: 0;
    margin: 0 0.625rem 0.125rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    color: rgba(255, 255, 255, 0.60);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast),
        border-left-color var(--transition-fast);
    border-left: 3px solid transparent;
    white-space: nowrap;
    overflow: hidden;
    font-weight: 500;
    font-size: 0.9rem;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.07);
    color: rgba(255, 255, 255, 0.90);
    text-decoration: none;
    transform: none;
}

.nav-link.active {
    background-color: rgba(122, 182, 72, 0.12);
    color: var(--dm-green-light);
    border-left-color: var(--dm-green);
}

.nav-link.active:hover {
    background-color: rgba(122, 182, 72, 0.18);
}

.nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    opacity: 0.85;
}

.nav-link.active .nav-icon {
    opacity: 1;
}

.nav-label {
    flex: 1;
    transition: opacity var(--transition-base);
}

.sidebar.collapsed .nav-label {
    opacity: 0;
    pointer-events: none;
    width: 0;
    overflow: hidden;
}

/* Sidebar — Footer (collapse button) */
.sidebar-footer {
    padding: 0.875rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    flex-shrink: 0;
}

.sidebar-collapse-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.45);
    cursor: pointer;
    font-size: 1rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.sidebar-collapse-btn:hover {
    background-color: rgba(255, 255, 255, 0.10);
    color: rgba(255, 255, 255, 0.75);
}

/* Tooltip for collapsed sidebar */
.sidebar.collapsed .nav-item {
    position: relative;
}

.sidebar.collapsed .nav-link::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(var(--spacing-sidebar-collapsed) - 0.5rem);
    top: 50%;
    transform: translateY(-50%);
    background: var(--dm-navy);
    color: #fff;
    font-size: 0.8125rem;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: calc(var(--z-sidebar) + 10);
    box-shadow: var(--shadow-md);
}

.sidebar.collapsed .nav-link:hover::after {
    opacity: 1;
}

/* ------------------------------------------------------------------ */
/* Top Bar                                                              */
/* ------------------------------------------------------------------ */

.topbar {
    height: 64px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: 1rem;
    position: sticky;
    top: 0;
    z-index: var(--z-topbar);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
    transition: background-color var(--transition-base);
}

.topbar-hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.375rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.topbar-hamburger:hover {
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

.topbar-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.topbar-breadcrumb .current {
    color: var(--text-primary);
    font-weight: 600;
}

.topbar-spacer {
    flex: 1;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.topbar-icon-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: none;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.125rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

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

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 9px;
    height: 9px;
    background-color: var(--color-error);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
}

/* User avatar */
.topbar-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--dm-navy) 0%, var(--dm-navy-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 700;
    color: #ffffff;
    cursor: pointer;
    border: 2px solid var(--border-color);
    transition: border-color var(--transition-fast);
    user-select: none;
}

.topbar-avatar:hover {
    border-color: var(--dm-green);
}

/* Dropdown menus */
.topbar-dropdown-wrapper {
    position: relative;
}

.topbar-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-dropdown);
    padding: 0.375rem;
    overflow: hidden;
}

.topbar-dropdown.show {
    display: block;
    animation: fadeInDown 0.15s ease;
}

.dropdown-header {
    padding: 0.625rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.25rem;
}

.dropdown-header-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.dropdown-header-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: capitalize;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

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

.dropdown-item.danger {
    color: var(--color-error);
}

.dropdown-item.danger:hover {
    background-color: rgba(239, 68, 68, 0.08);
    color: var(--color-error);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 0.25rem 0;
}

/* ------------------------------------------------------------------ */
/* Page Content                                                         */
/* ------------------------------------------------------------------ */

.page-content {
    flex: 1;
    padding: 1.75rem 2rem;
    overflow-y: auto;
}

.page-header {
    margin-bottom: 1.75rem;
}

.page-title {
    font-family: var(--font-heading);
    font-size: 1.625rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.page-subtitle {
    margin-top: 0.25rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ------------------------------------------------------------------ */
/* Stat Cards                                                           */
/* ------------------------------------------------------------------ */

.stat-cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1.375rem 1.5rem;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-color);
    transition:
        transform var(--transition-base),
        box-shadow var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--dm-green) 0%, var(--dm-green-light) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.stat-card-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.3;
}

.stat-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
    background-color: rgba(122, 182, 72, 0.10);
    color: var(--dm-green);
}

.stat-card-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 0.375rem;
}

.stat-card-footer {
    font-size: 0.8125rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.stat-card-change {
    font-weight: 600;
}

.stat-card-change.positive { color: var(--color-success); }
.stat-card-change.negative { color: var(--color-error); }
.stat-card-change.neutral  { color: var(--text-muted); }

/* ------------------------------------------------------------------ */
/* Content Cards                                                        */
/* ------------------------------------------------------------------ */

.content-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.content-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.125rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.content-card-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.content-card-body {
    padding: 1.25rem 1.5rem;
}

.content-card-footer {
    padding: 0.875rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

/* Two-column grid */
.two-col-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

/* ------------------------------------------------------------------ */
/* Alert Indicators (pulsing — for Operations dashboard)               */
/* ------------------------------------------------------------------ */

.alert-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-full);
}

.alert-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Pulsing dot animations */
@keyframes pulse-red {
    0%  { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.6); }
    70% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
    100%{ box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

@keyframes pulse-amber {
    0%  { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.6); }
    70% { box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
    100%{ box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

@keyframes pulse-green {
    0%  { box-shadow: 0 0 0 0 rgba(122, 182, 72, 0.6); }
    70% { box-shadow: 0 0 0 8px rgba(122, 182, 72, 0); }
    100%{ box-shadow: 0 0 0 0 rgba(122, 182, 72, 0); }
}

.alert-dot-red    { background-color: var(--color-error);   animation: pulse-red   1.5s infinite; }
.alert-dot-amber  { background-color: var(--color-warning); animation: pulse-amber 1.5s infinite; }
.alert-dot-green  { background-color: var(--dm-green);      animation: pulse-green 1.5s infinite; }

.alert-indicator-red   { background-color: rgba(239, 68,  68,  0.08); color: var(--color-error); }
.alert-indicator-amber { background-color: rgba(245, 158, 11,  0.08); color: var(--color-warning); }
.alert-indicator-green { background-color: rgba(122, 182, 72,  0.08); color: var(--dm-green); }

/* ------------------------------------------------------------------ */
/* Page Entrance Animations                                             */
/* ------------------------------------------------------------------ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-16px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in    { animation: fadeIn    0.35s ease forwards; }
.animate-fade-up    { animation: fadeInUp  0.40s ease forwards; }
.animate-slide-left { animation: slideInLeft 0.35s ease forwards; }

/* Staggered children */
.stagger > * {
    opacity: 0;
    animation: fadeInUp 0.40s ease forwards;
}

.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.10s; }
.stagger > *:nth-child(3) { animation-delay: 0.15s; }
.stagger > *:nth-child(4) { animation-delay: 0.20s; }
.stagger > *:nth-child(5) { animation-delay: 0.25s; }
.stagger > *:nth-child(6) { animation-delay: 0.30s; }

/* ------------------------------------------------------------------ */
/* Responsive — Tablet (768–1024px)                                    */
/* ------------------------------------------------------------------ */

@media (max-width: 1024px) {
    .stat-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .layout-main {
        margin-left: var(--spacing-sidebar-collapsed);
    }

    .sidebar {
        width: var(--spacing-sidebar-collapsed);
    }

    .sidebar .nav-label,
    .sidebar .sidebar-brand-text,
    .sidebar .nav-section-label {
        opacity: 0;
        pointer-events: none;
        width: 0;
        overflow: hidden;
    }

    .two-col-grid {
        grid-template-columns: 1fr;
    }

    .page-content {
        padding: 1.25rem 1.25rem;
    }
}

/* ------------------------------------------------------------------ */
/* Responsive — Mobile (<768px)                                        */
/* ------------------------------------------------------------------ */

@media (max-width: 767px) {
    .layout-main {
        margin-left: 0;
    }

    .sidebar {
        transform: translateX(-100%);
        width: var(--spacing-sidebar);
        transition: transform var(--transition-base);
    }

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

    /* Overlay */
    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.50);
        z-index: calc(var(--z-sidebar) - 1);
    }

    .sidebar-overlay.show {
        display: block;
    }

    .sidebar .nav-label,
    .sidebar .sidebar-brand-text,
    .sidebar .nav-section-label {
        opacity: 1;
        pointer-events: auto;
        width: auto;
        overflow: visible;
    }

    .topbar-hamburger {
        display: flex;
    }

    .stat-cards-grid {
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }

    .page-content {
        padding: 1rem;
    }

    .topbar {
        padding: 0 1rem;
    }
}

/* ------------------------------------------------------------------ */
/* Utility                                                              */
/* ------------------------------------------------------------------ */

.placeholder-text {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-align: center;
    padding: 2rem 1rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: capitalize;
}

.badge-green  { background-color: rgba(122, 182, 72, 0.12); color: var(--dm-green); }
.badge-navy   { background-color: rgba(43, 58, 103, 0.12);  color: var(--dm-navy);  }
.badge-error  { background-color: rgba(239, 68, 68, 0.12);  color: var(--color-error); }
.badge-warning{ background-color: rgba(245,158, 11, 0.12);  color: var(--color-warning); }
.badge-info   { background-color: rgba(59, 130,246, 0.12);  color: var(--color-info); }