/* ============================================================
   CCMAR Layout — Shell Structure
   Sidebar + Header + Main Content Grid
   ============================================================ */

/* ---------- App Shell Grid ---------- */
.app-shell {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: var(--header-height) 1fr;
    grid-template-areas:
        "sidebar header"
        "sidebar main";
    height: 100vh;
    overflow: hidden;
    transition: grid-template-columns var(--duration-slow) var(--ease-default);
}

.app-shell.sidebar-collapsed {
    grid-template-columns: var(--sidebar-collapsed) 1fr;
}

.app-shell.sidebar-hidden {
    grid-template-columns: 0 1fr;
}


/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
    grid-area: sidebar;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-secondary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: var(--z-sidebar);
    transition: transform var(--duration-slow) var(--ease-default);
}

.sidebar-hidden .sidebar {
    transform: translateX(-100%);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
}

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

/* --- Logo Area --- */
.sidebar-logo {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 var(--space-5);
    border-bottom: 1px solid var(--border-secondary);
    flex-shrink: 0;
}

.sidebar-logo h1 {
    font-size: var(--text-md);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    letter-spacing: var(--tracking-tight);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-logo .logo-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    background: var(--brand-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--space-3);
    flex-shrink: 0;
    font-weight: var(--weight-bold);
    color: white;
    font-size: var(--text-sm);
}

.sidebar-collapsed .sidebar-logo h1 {
    display: none;
}

/* --- Navigation --- */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-3) 0;
}

.nav-section {
    margin-bottom: var(--space-2);
}

.nav-section-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    padding: var(--space-3) var(--space-5) var(--space-2);
    white-space: nowrap;
    overflow: hidden;
    flex: 1;
    min-width: 0;
}

.nav-section-label-row {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-section-actions {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding-right: var(--space-3);
}

.nav-section-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px; height: 22px;
    border: none; background: transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background var(--duration-fast) var(--ease-default), color var(--duration-fast) var(--ease-default);
}

.nav-section-action:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

.sidebar-collapsed .nav-section-actions { display: none; }

/* Per-item action buttons (e.g. + next to "Respondents") */
.nav-item-actions {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-left: auto;
    padding-left: var(--space-2);
}

.nav-item-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px; height: 22px;
    border: none; background: transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background var(--duration-fast) var(--ease-default), color var(--duration-fast) var(--ease-default);
}

.nav-item-action:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

.sidebar-collapsed .nav-item-actions { display: none; }

.sidebar-collapsed .nav-section-label {
    text-align: center;
    padding: var(--space-3) var(--space-2) var(--space-2);
    font-size: 0;
}

.sidebar-collapsed .nav-section-label::after {
    content: '•';
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.nav-item {
    display: flex;
    align-items: center;
    padding: var(--space-2) var(--space-5);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-default);
    border-radius: 0;
    margin: 1px var(--space-2);
    border-radius: var(--radius-md);
    white-space: nowrap;
    overflow: hidden;
    text-decoration: none;
    position: relative;
    user-select: none;
}

.nav-item:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background-color: var(--accent-muted);
    color: var(--accent-text);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background-color: var(--accent);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

.nav-item-icon {
    width: 18px;
    height: 18px;
    margin-right: var(--space-3);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
}

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

.nav-item-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-item-badge {
    font-size: var(--text-xs);
    padding: 1px 6px;
    border-radius: var(--radius-full);
    background-color: var(--accent-muted);
    color: var(--accent-text);
    font-weight: var(--weight-semibold);
    flex-shrink: 0;
}

.sidebar-collapsed .nav-item {
    padding: var(--space-2);
    justify-content: center;
    margin: 1px var(--space-1);
}

.sidebar-collapsed .nav-item-label,
.sidebar-collapsed .nav-item-badge,
.sidebar-collapsed .nav-item-chevron {
    display: none;
}

.sidebar-collapsed .nav-item-icon {
    margin-right: 0;
}

/* --- Submenu --- */
.nav-submenu {
    overflow: hidden;
    max-height: 0;
    transition: max-height var(--duration-slow) var(--ease-default);
}

.nav-submenu.expanded {
    max-height: 1000px;
}

.nav-submenu .nav-item {
    padding-left: calc(var(--space-5) + 18px + var(--space-3));
    font-size: var(--text-xs);
}

/* Nested submenu (3-level: e.g. Offices > Charlotte > WIP) */
.nav-submenu .nav-submenu .nav-item {
    padding-left: calc(var(--space-5) + 18px + var(--space-3) + var(--space-4));
}

.nav-submenu.expanded .nav-submenu.expanded {
    max-height: 2000px;
}

.nav-item-chevron {
    width: 16px;
    height: 16px;
    transition: transform var(--duration-normal) var(--ease-default);
    flex-shrink: 0;
    opacity: 0.5;
}

.nav-item-chevron.expanded {
    transform: rotate(90deg);
}

/* --- External Link Indicator --- */
.nav-item-external::after {
    content: '↗';
    margin-left: var(--space-2);
    font-size: var(--text-xs);
    opacity: 0.5;
}

/* --- Sidebar Footer --- */
.sidebar-footer {
    padding: var(--space-3) var(--space-5);
    border-top: 1px solid var(--border-secondary);
    flex-shrink: 0;
}


/* ============================================================
   HEADER
   ============================================================ */
.header {
    grid-area: header;
    background-color: var(--bg-header);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-6);
    z-index: var(--z-header);
    position: sticky;
    top: 0;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    min-width: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* --- Menu Toggle --- */
.menu-toggle {
    display: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    background: var(--bg-surface);
    color: var(--text-secondary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast) var(--ease-default);
    flex-shrink: 0;
}

.menu-toggle:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

/* --- Page Header (title + subtitle, lives in the global header) --- */
#page-header-title-area {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
    gap: 2px;
    line-height: 1.2;
}

#page-header-title {
    margin: 0;
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
}

#page-header-subtitle {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
}

/* --- Page-level header action buttons (Add, Prev/Next, etc.) --- */
#page-header-action-buttons {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

#page-header-action-buttons .btn {
    padding: 4px 10px;
    font-size: var(--text-sm);
}

/* Mobile: collapse the inline button row into the kebab dropdown. */
@media (max-width: 768px) {
    #page-header-action-buttons { display: none !important; }
    #page-header-action-kebab-wrap { display: inline-flex !important; }
}

/* The kebab's dropdown menu is positioned beneath the kebab. */
#page-header-action-kebab-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 180px;
    display: none;
}
#page-header-action-kebab-menu.open { display: block; }

/* --- Header Credits Pill ---
   Persistent outlined badge showing the panelist's current credit balance.
   Lives in .header-right next to the theme toggle. Updated via
   refreshHeaderCredits() (defined on window in app.js.php). */
.header-credits {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    background: transparent;
    font-size: var(--text-sm);
    line-height: 1.2;
    color: var(--text-primary);
    user-select: none;
    transition: border-color var(--duration-fast) var(--ease-default);
}

.header-credits:hover {
    border-color: var(--border-hover);
}

.header-credits-label {
    color: var(--text-secondary);
    font-weight: var(--weight-medium);
}

.header-credits-value {
    color: var(--text-primary);
    font-weight: var(--weight-semibold);
    font-variant-numeric: tabular-nums;
}

/* On narrow screens the pill loses its label to save space. */
@media (max-width: 640px) {
    .header-credits-label { display: none; }
    .header-credits { padding: 6px 10px; }
}

/* --- Header Icon Buttons --- */
.header-icon-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast) var(--ease-default);
    font-size: var(--text-lg);
    position: relative;
}

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

/* --- Profile Dropdown --- */
.profile-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-1) var(--space-2) var(--space-1) var(--space-1);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    background: transparent;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-default);
}

.profile-trigger:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-hover);
}

.profile-avatar {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    background: var(--brand-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    flex-shrink: 0;
}

.profile-name {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--text-primary);
    white-space: nowrap;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.profile-role {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    white-space: nowrap;
}

.profile-chevron {
    color: var(--text-tertiary);
    font-size: var(--text-xs);
    margin-left: var(--space-1);
}


/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
    grid-area: main;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-6);
    background-color: var(--bg-primary);
}

.main-content-inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
    animation: fadeIn var(--duration-normal) var(--ease-out);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* --- Page Header --- */
.page-header {
    margin-bottom: var(--space-6);
}

.page-title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    color: var(--text-primary);
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-tight);
}

.page-subtitle {
    font-size: var(--text-md);
    color: var(--text-secondary);
    margin-top: var(--space-1);
}


/* ============================================================
   DROPDOWN MENU (shared between header and context menus)
   ============================================================ */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-1));
    right: 0;
    min-width: 200px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-1);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: all var(--duration-normal) var(--ease-default);
}

.dropdown-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-default);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    text-decoration: none;
}

.dropdown-item:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-secondary);
    margin: var(--space-1) var(--space-2);
}


/* ============================================================
   OVERLAY (for mobile sidebar)
   ============================================================ */
.overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    z-index: calc(var(--z-sidebar) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-default);
}

.overlay.visible {
    opacity: 1;
    visibility: visible;
}


/* ============================================================
   TOAST CONTAINER
   ============================================================ */
.toast-container {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    pointer-events: none;
}


/* ============================================================
   MODAL CONTAINER
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    z-index: var(--z-modal);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--space-10) var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-default);
    overflow-y: auto;
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}


/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet: sidebar collapsed to icons */
@media (max-width: 1199px) {
    .app-shell {
        grid-template-columns: var(--sidebar-collapsed) 1fr;
    }

    .sidebar-logo h1 { display: none; }

    .nav-section-label {
        text-align: center;
        padding: var(--space-3) var(--space-2) var(--space-2);
        font-size: 0;
    }
    .nav-section-label::after {
        content: '•';
        font-size: var(--text-sm);
        color: var(--text-tertiary);
    }

    .nav-item {
        padding: var(--space-2);
        justify-content: center;
        margin: 1px var(--space-1);
    }

    .nav-item-label,
    .nav-item-badge,
    .nav-item-chevron {
        display: none;
    }

    .nav-item-icon { margin-right: 0; }

    .nav-submenu { display: none; }
}

/* Mobile: sidebar hidden, hamburger menu */
@media (max-width: 767px) {
    .app-shell {
        grid-template-columns: 0 1fr;
        grid-template-areas:
            "header header"
            "main main";
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: var(--sidebar-width);
        transform: translateX(-100%);
        z-index: var(--z-sidebar);
    }

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

    /* Restore full sidebar styles when open on mobile */
    .sidebar.sidebar-open .sidebar-logo h1 { display: block; }
    .sidebar.sidebar-open .nav-section-label {
        font-size: var(--text-xs);
        text-align: left;
        padding: var(--space-3) var(--space-5) var(--space-2);
    }
    .sidebar.sidebar-open .nav-section-label::after { content: none; }
    .sidebar.sidebar-open .nav-item {
        padding: var(--space-2) var(--space-5);
        justify-content: flex-start;
        margin: 1px var(--space-2);
    }
    .sidebar.sidebar-open .nav-item-label,
    .sidebar.sidebar-open .nav-item-badge,
    .sidebar.sidebar-open .nav-item-chevron { display: flex; }
    .sidebar.sidebar-open .nav-item-icon { margin-right: var(--space-3); }
    .sidebar.sidebar-open .nav-submenu { display: block; }

    .menu-toggle {
        display: flex;
    }

    .main-content {
        padding: var(--space-4);
    }

    .header {
        padding: 0 var(--space-4);
    }

    .profile-name, .profile-role {
        display: none;
    }
}

/* ============================================================
   UTILITY CLASSES (Spacing, Flex, Typography)
   ============================================================ */

/* Margin */
.m-0 { margin: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-5 { margin-top: var(--space-5) !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }
.ml-1 { margin-left: var(--space-1) !important; }
.ml-2 { margin-left: var(--space-2) !important; }
.ml-3 { margin-left: var(--space-3) !important; }
.ml-4 { margin-left: var(--space-4) !important; }
.mr-1 { margin-right: var(--space-1) !important; }
.mr-2 { margin-right: var(--space-2) !important; }
.mr-3 { margin-right: var(--space-3) !important; }
.mr-4 { margin-right: var(--space-4) !important; }

/* Padding */
.p-0 { padding: 0 !important; }
.p-1 { padding: var(--space-1) !important; }
.p-2 { padding: var(--space-2) !important; }
.p-3 { padding: var(--space-3) !important; }
.p-4 { padding: var(--space-4) !important; }
.p-5 { padding: var(--space-5) !important; }
.px-1 { padding-left: var(--space-1) !important; padding-right: var(--space-1) !important; }
.px-2 { padding-left: var(--space-2) !important; padding-right: var(--space-2) !important; }
.px-3 { padding-left: var(--space-3) !important; padding-right: var(--space-3) !important; }
.px-4 { padding-left: var(--space-4) !important; padding-right: var(--space-4) !important; }
.py-1 { padding-top: var(--space-1) !important; padding-bottom: var(--space-1) !important; }
.py-2 { padding-top: var(--space-2) !important; padding-bottom: var(--space-2) !important; }
.py-3 { padding-top: var(--space-3) !important; padding-bottom: var(--space-3) !important; }
.py-4 { padding-top: var(--space-4) !important; padding-bottom: var(--space-4) !important; }
.py-5 { padding-top: var(--space-5) !important; padding-bottom: var(--space-5) !important; }
.py-8 { padding-top: var(--space-8) !important; padding-bottom: var(--space-8) !important; }

/* Flexbox utilities */
.flex { display: flex !important; }
.inline-flex { display: inline-flex !important; }
.flex-col { flex-direction: column !important; }
.flex-row { flex-direction: row !important; }
.flex-wrap { flex-wrap: wrap !important; }
.items-start { align-items: flex-start !important; }
.items-center { align-items: center !important; }
.items-end { align-items: flex-end !important; }
.justify-start { justify-content: flex-start !important; }
.justify-center { justify-content: center !important; }
.justify-end { justify-content: flex-end !important; }
.justify-between { justify-content: space-between !important; }
.justify-around { justify-content: space-around !important; }
.gap-1 { gap: var(--space-1) !important; }
.gap-2 { gap: var(--space-2) !important; }
.gap-3 { gap: var(--space-3) !important; }
.gap-4 { gap: var(--space-4) !important; }

/* Sizing */
.w-full { width: 100% !important; }
.h-full { height: 100% !important; }
.max-w-full { max-width: 100% !important; }