:root {
    /* Brand & Layout Palette */
    --iacs-sidebar-bg: #0c1427;
    --iacs-sidebar-hover: #17233f;
    --iacs-sidebar-active: #1d2b4f;
    --iacs-sidebar-text: #8e9bb3;
    --iacs-sidebar-text-active: #ffffff;

    --iacs-bg-main: #f0f4f9;
    --iacs-card-bg: #ffffff;
    --iacs-card-border: #e2e8f0;

    /* Functional Theme Colors */
    --iacs-primary: #1e40af;
    --iacs-primary-hover: #1e3a8a;
    --iacs-accent: #2563eb;
    --iacs-success: #15803d;
    --iacs-success-bg: #dcfce7;
    --iacs-warning: #b45309;
    --iacs-warning-bg: #fef3c7;
    --iacs-info-bg: #eff6ff;
    --iacs-info-text: #1d4ed8;

    /* Typography & Sizing */
    --iacs-text-primary: #0f172a;
    --iacs-text-secondary: #64748b;
    --iacs-text-muted: #94a3b8;
    --iacs-font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --iacs-sidebar-width: 250px;
}

/* Base resets */
body {
    background-color: var(--iacs-bg-main);
    color: var(--iacs-text-primary);
    font-family: var(--iacs-font-family);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar Styling & Toggle Transition */
.iacs-sidebar {
    background-color: var(--iacs-sidebar-bg);
    min-height: 100vh;
    color: var(--iacs-sidebar-text);
    width: var(--iacs-sidebar-width);
    flex-shrink: 0;
    transition: margin-left 0.25s ease-in-out;
}

/* Collapsed class for full-screen toggle */
.iacs-sidebar.collapsed {
    margin-left: calc(-1 * var(--iacs-sidebar-width));
}

.iacs-sidebar .brand-box {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.iacs-sidebar .brand-title {
    color: #ffffff;
    font-weight: 700;
    font-size: 1.05rem;
    margin: 0;
    letter-spacing: -0.01em;
}

.iacs-sidebar .brand-sub {
    color: var(--iacs-sidebar-text);
    font-size: 0.75rem;
}

.iacs-sidebar .nav-link {
    color: var(--iacs-sidebar-text);
    padding: 0.65rem 1.15rem;
    margin: 0.2rem 0.85rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    transition: all 0.15s ease-in-out;
    white-space: nowrap;
}

.iacs-sidebar .nav-link i {
    font-size: 1.05rem;
    margin-right: 0.75rem;
    opacity: 0.85;
}

.iacs-sidebar .nav-link:hover {
    background-color: var(--iacs-sidebar-hover);
    color: #ffffff;
}

.iacs-sidebar .nav-link.active {
    background-color: var(--iacs-sidebar-active);
    color: var(--iacs-sidebar-text-active);
    font-weight: 600;
}

/* Top Navigation Bar */
.iacs-topbar {
    background-color: var(--iacs-card-bg);
    padding: 0.65rem 1.5rem;
    border-bottom: 1px solid var(--iacs-card-border);
}

/* Dropdown chevron overlap fix */
.iacs-select {
    border: 1px solid var(--iacs-card-border);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--iacs-text-primary);
    background-color: #fff;
    padding-top: 0.45rem;
    padding-bottom: 0.45rem;
    padding-left: 0.85rem;
    padding-right: 2.25rem !important;
    /* Preserves ample room so text never clashes with the dropdown arrow */
    min-width: 145px;
    cursor: pointer;
}

.iacs-select-role {
    min-width: 175px;
}

.iacs-input {
    border: 1px solid var(--iacs-card-border);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--iacs-text-primary);
    background-color: #fff;
    padding: 0.45rem 0.85rem;
}

.iacs-input:focus,
.iacs-select:focus {
    border-color: var(--iacs-accent);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
    outline: none;
}

/* Buttons */
.btn-toggle-sidebar {
    background: transparent;
    border: 1px solid var(--iacs-card-border);
    color: var(--iacs-text-secondary);
    border-radius: 6px;
    padding: 0.35rem 0.65rem;
    font-size: 1rem;
    cursor: pointer;
}

.btn-toggle-sidebar:hover {
    background: var(--iacs-bg-main);
    color: var(--iacs-text-primary);
}

.btn-iacs-primary {
    background-color: var(--iacs-primary);
    color: #fff;
    font-weight: 600;
    border-radius: 6px;
    border: none;
    padding: 0.45rem 1rem;
    font-size: 0.875rem;
}

.btn-iacs-primary:hover {
    background-color: var(--iacs-primary-hover);
    color: #fff;
}

/* Cards & Metric Tiles */
.iacs-card {
    background-color: var(--iacs-card-bg);
    border: 1px solid var(--iacs-card-border);
    border-radius: 8px;
    padding: 1.25rem;
}

.metric-label {
    font-size: 0.78rem;
    color: var(--iacs-text-secondary);
    margin-bottom: 0.4rem;
}

.metric-val {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--iacs-text-primary);
    line-height: 1.1;
    margin: 0;
}

/* Badge Statuses */
.badge-posted {
    background-color: var(--iacs-success-bg);
    color: var(--iacs-success);
    font-weight: 600;
    font-size: 0.72rem;
    padding: 0.35rem 0.65rem;
    border-radius: 4px;
}

/* Prototype Info Banner */
.prototype-notice {
    background-color: var(--iacs-info-bg);
    border: 1px solid #bfdbfe;
    color: var(--iacs-info-text);
    font-size: 0.8rem;
    padding: 0.75rem 1rem;
    border-radius: 6px;
}

/* User Profile Menu */
#userMenuDropdown {
    background-color: #fff;
    border-color: var(--iacs-card-border) !important;
}

#userMenuDropdown:hover {
    background-color: var(--iacs-bg-main);
}

.dropdown-item:active {
    background-color: var(--iacs-primary);
}

/* Fix header Register User button click/focus state */
.btn-header-register {
    background-color: var(--iacs-primary) !important;
    border: 1px solid var(--iacs-primary) !important;
    color: #ffffff !important;
    font-weight: 500;
    transition: all 0.15s ease-in-out;
}

.btn-header-register:hover,
.btn-header-register:focus,
.btn-header-register:active,
.btn-header-register.active {
    background-color: var(--iacs-primary-hover) !important;
    border-color: var(--iacs-primary-hover) !important;
    color: #ffffff !important;
    box-shadow: 0 0 0 2px rgba(30, 64, 175, 0.25) !important;
}

/* User Form Cards & Checkbox Cards */
.menu-permission-card {
    background: #ffffff;
    border: 1px solid var(--iacs-card-border);
    border-radius: 6px;
    padding: 0.65rem 0.85rem;
    transition: all 0.15s ease;
    cursor: pointer;
}

.menu-permission-card:hover {
    border-color: var(--iacs-accent);
    background-color: #f8fafc;
}

.menu-permission-card.active-selected {
    border-color: var(--iacs-accent);
    background-color: #eff6ff;
}

/* Inline Back Navigation */
.back-link {
    color: var(--iacs-text-secondary);
    text-decoration: none;
    font-size: 0.825rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 0.35rem;
}

.back-link:hover {
    color: var(--iacs-accent);
}

/* Clean Secondary Action Button (for Back / Exit buttons) */
.btn-iacs-secondary {
    background-color: #ffffff;
    border: 1px solid var(--iacs-card-border);
    color: var(--iacs-text-secondary);
    font-weight: 500;
    font-size: 0.85rem;
    padding: 0.45rem 0.95rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s ease-in-out;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.btn-iacs-secondary:hover {
    background-color: #f8fafc;
    border-color: #cbd5e1;
    color: var(--iacs-text-primary);
}