/*
 * Styles for the web application
 *
 * Author: Manuel Ziel
 */

:root {
    color-scheme: dark;
    /** Sizes and Font (Strict 3-tier rule: 1.5rem/1.25rem, 1rem, 0.85rem) **/
    --small-rem: 0.85rem;
    --medium-rem: 1rem;
    --medium-sm-rem: 1.25rem;
    --medium-large-rem: 1.5rem;
    --large-rem: 2rem;
    --font-family: 'Arial', sans-serif;
    --font-family-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

    /** Base colors */
    --theme-dark-a0: #000000;
    --theme-light-a0: #ffffff;

    /** Theme primary colors */
    --theme-primary-a0: #2456d2;
    --theme-primary-a10: #4d67d8;
    --theme-primary-a20: #6978dd;
    --theme-primary-a30: #818ae2;
    --theme-primary-a40: #989de8;
    --theme-primary-a50: #adafed;

    /** Theme surface colors */
    --theme-surface-a0: #121212;
    --theme-surface-a10: #282828;
    --theme-surface-a20: #3f3f3f;
    --theme-surface-a30: #575757;
    --theme-surface-a40: #717171;
    --theme-surface-a50: #8b8b8b;

    /** Theme tonal surface colors */
    --theme-surface-tonal-a0: #181923;
    --theme-surface-tonal-a10: #2d2e38;
    --theme-surface-tonal-a20: #44444d;
    --theme-surface-tonal-a30: #5c5c64;
    --theme-surface-tonal-a40: #75757c;
    --theme-surface-tonal-a50: #8f8f95;

    /** Border Radius (Global Tokens) **/
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-round: 50%;

    /** Media Queries (Note: Native CSS @media rules do not accept var(...) syntax; keep 860px in sync) **/
    --media-query-mobile-max-width: 860px;

    /** Body **/
    --body-background-color: var(--theme-surface-a0);

    /** Background Variables **/
    --background-color-1: var(--theme-surface-a0);
    --background-color-2: var(--theme-surface-tonal-a0);
    --background-color-3: var(--theme-surface-tonal-a20);

    /** Main-Nav **/
    --main-nav-background-color: var(--theme-surface-tonal-a20);
    --main-nav-color: var(--theme-light-a0);
    --main-nav-hover-focus-background-color: var(--theme-surface-tonal-a10);
    --main-nav-hover-focus-color: var(--theme-light-a0);
    --main-nav-active-background-color: var(--section-background-color);
    --main-nav-active-color: var(--theme-light-a0);
    --main-nav-font-size: var(--medium-rem);
    --main-nav-box-shadow: 2px 6px 10px rgba(0, 0, 0, 0.5);
    --main-nav-gap: 0.5rem;
    --main-nav-link-padding: 0.75rem 1.25rem;
    --main-nav-mobile-gap: 0.2rem;
    --main-nav-mobile-padding: 0.5rem 0;

    /** Header **/
    --header-color: var(--theme-light-a0);

    /** Section Text **/
    --section-text-color: var(--theme-light-a0);
    --section-text-font-size: var(--medium-rem);

    /** Section **/
    --section-background-color: var(--theme-surface-tonal-a10);
    --section-wide: 60rem;
    --section-box-shadow: 2px 6px 10px rgba(0, 0, 0, 0.5);

    /** Table **/
    --table-th-background-color: var(--theme-surface-tonal-a20);
    --table-th-color: var(--theme-light-a0);
    --table-td-background-color: var(--theme-surface-tonal-a10);
    --table-td-color: var(--theme-light-a0);
    --table-tr-background-color: var(--theme-surface-tonal-a20);
    --table-row-color: var(--theme-light-a0);
    --table-font-size: var(--medium-rem);
    --table-margin: var(--medium-rem) 0;
    --table-cell-padding: 0.5rem 1rem;
    --table-col-min-width: 2rem;
    --table-button-width: 6rem;
    --table-button-height: 2rem;
    --table-button-font-size: var(--small-rem);
    --table-col-action-padding: 0.5rem 0;
    --table-responsive-margin: 2em;
    --table-responsive-td-padding-left: 50%;
    --table-responsive-td-before-left: 0.5em;
    --table-responsive-border-bottom: 1px solid var(--theme-surface-tonal-a20);
    --table-border-color: var(--theme-surface-tonal-a20);
    --table-row-hover-color: var(--theme-surface-tonal-a30);

    /** Text Input **/
    --input-background-color: var(--theme-surface-tonal-a20);
    --input-color: var(--theme-surface-tonal-a50);
    --input-font-size: var(--medium-rem);
    --input-height: var(--button-height);
    --input-border-color: var(--theme-surface-tonal-a10);
    --input-hover-border-color: var(--theme-primary-a20);
    --input-border: 1px solid var(--input-border-color);

    /** Button **/
    --button-background-color: var(--theme-primary-a20);
    --button-color: var(--theme-dark-a0);
    --button-font-decoration: none;
    --button-width: 10rem;
    /* 160px */
    --button-lg-width: 11rem;
    /* 176px */
    --button-height: 2.5rem;
    /* 40px */
    --button-sm-height: 2rem;
    /* 32px */
    --button-hover-background-color: var(--theme-primary-a40);
    --button-hover-scale: scale(1.05);
    --button-active-scale: scale(0.95);
    --button-margin-top: 0.5rem;
    --button-responsive-gap: 0.5em;
    --button-responsive-margin: 0.5em 0;

    /** Button Badge **/
    --badge-background-color: var(--theme-surface-tonal-a20);
    --badge-color: var(--theme-surface-tonal-a50);
    --badge-hover-background-color: var(--theme-primary-a40);
    --badge-hover-color: var(--theme-dark-a0);
    --badge-size: 25px;
    --badge-position-top: -10px;
    --badge-position-right: -10px;

    /** Progress Bar **/
    --progress-bar-background-color: var(--theme-surface-tonal-a40);
    --progress-bar-fill-background-color: var(--theme-primary-a10);
    --progress-bar-color: var(--theme-light-a0);

    /** Admin Form Control Widths **/
    --admin-input-sm-width: 10rem;
    --admin-input-md-width: 16rem;
    --admin-input-lg-width: 18rem;

    /** Form Group **/
    --form-group-margin-bottom: var(--medium-rem);
    --form-label-margin-bottom: 0.3rem;
    --form-label-font-size: var(--medium-rem);
    --form-label-color: var(--section-text-color);
    --form-hint-font-size: var(--small-rem);
    --form-hint-color: var(--theme-surface-a50);
    --form-hint-margin-top: 0.3rem;

    /** Status Box **/
    --status-box-info-color: #3498db;
    --status-box-info-background: rgba(52, 152, 219, 0.1);
    --status-box-success-color: #27ae60;
    --status-box-success-background: rgba(39, 174, 96, 0.2);
    --status-box-error-color: #e74c3c;
    --status-box-error-background: rgba(231, 76, 60, 0.2);
    --status-box-warning-color: #e67e22;
    --status-box-warning-background: rgba(230, 126, 34, 0.2);

    --status-box-padding: var(--small-rem) var(--medium-rem);
    --status-box-min-height: var(--button-height);
    --status-box-margin: var(--medium-rem) 0;
    --status-box-border-width: 4px;
    --status-box-font-size: var(--medium-rem);

    --status-box-list-margin: 0.5rem 0 0 1.5rem;
    --status-box-list-padding: 0;
    --status-box-list-li-margin: 0.3rem;
    --status-box-hint-font-size: var(--small-rem);
    --status-box-hint-color: var(--theme-surface-a50);
    --status-box-hint-margin-top: var(--medium-rem);
    --status-box-hint-text-align: center;

    /** Password Requirements **/
    --password-requirements-h4-margin: 0 0 0.5rem 0;
    --password-requirements-ul-margin: var(--form-hint-margin-top) 0 0 1.5rem;
    --password-requirements-li-margin: 0.2rem 0;

    /** Logout **/
    --link-color: var(--theme-primary-a20);
    --link-hover-color: var(--theme-primary-a40);

    /** Auth Link **/
    --auth-link-color: var(--theme-surface-a50);
    --auth-link-hover-color: var(--theme-light-a0);
    --auth-link-font-size: var(--medium-rem);
    --auth-link-container-margin-top: var(--medium-rem);
    --auth-link-transition: color 0.3s, text-decoration 0.3s;

    /** Server Status **/
    --server-status-background-color: var(--theme-surface-tonal-a20);
    --server-status-color: var(--theme-light-a0);
    --server-status-border: 1px solid var(--theme-surface-tonal-a10);
    --server-status-item-padding: 0.75rem;

    /** Footer **/
    --footer-color: var(--theme-surface-a50);

    /** Confirm & Alert / Modals **/
    --confirm-alert-background-color: var(--theme-surface-tonal-a10);
    --confirm-alert-color: var(--theme-light-a0);
    --confirm-alert-border: 1px solid var(--theme-surface-a10);
    --confirm-alert-padding: 1.5rem;
    --confirm-alert-margin: 1rem;
    --confirm-alert-max-width: 26rem;

    /** Admin Layout **/
    --admin-sidebar-width: 240px;
    --admin-sidebar-background: var(--theme-surface-tonal-a10);
    --admin-sidebar-border-color: var(--theme-surface-a20);
    --admin-header-border-color: var(--theme-surface-a20);
    --admin-content-padding: 2rem;

    /** Admin Nav **/
    --admin-nav-link-padding: 0.6rem 1rem;
    --admin-nav-link-color: var(--theme-surface-a50);
    --admin-nav-link-hover-color: var(--theme-light-a0);
    --admin-nav-link-hover-background: var(--theme-surface-a20);
    --admin-nav-link-active-color: var(--theme-light-a0);
    --admin-nav-link-active-background: var(--theme-surface-tonal-a30);

    /** Admin Badge **/
    --admin-badge-padding: 0.2rem 0.6rem;
    --admin-badge-font-size: 0.85rem;
    --admin-badge-success-bg: #1e7e34;
    --admin-badge-error-bg: #a82315;
    --admin-badge-info-bg: #1a629b;
    --admin-badge-warning-bg: #b86200;

    /** Admin Pagination **/
    --admin-pagination-link-padding: 0.4rem 0.8rem;
    --admin-pagination-active-background: var(--theme-surface-tonal-a30);
    --admin-pagination-active-color: var(--theme-light-a0);
}

/* Body */
body {
    background-color: var(--body-background-color);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: var(--font-family);
    line-height: 1.6;
}

/* Canvas */
canvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    filter: blur(0.8px);
}

/* UI Icons (Google Material Symbols) */
.ui-icon {
    display: inline-block;
    width: 1.25em;
    height: 1.25em;
    vertical-align: -0.22em;
    background-color: currentColor;
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
    -webkit-mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
    flex-shrink: 0;
}

.ui-icon-sm {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
}

.ui-icon-lg {
    width: 1.5em;
    height: 1.5em;
    vertical-align: -0.3em;
}

/* In flex containers (nav links, action buttons), vertical-align is ignored by browsers.
   We use position: relative and top to optically align icons with font cap-height. */
.main-nav a .ui-icon,
.admin-action-btn .ui-icon,
.fb-action-btn .ui-icon {
    position: relative;
    top: -0.08em;
}

/* For ALL buttons (table actions, modals, preview close), reset top to 0 for perfect flex vertical centering */
button .ui-icon,
.btn .ui-icon {
    top: 0;
    margin: 0;
}

/* Icon mapping classes (No inline styles!) */
.icon-filter-list {
    mask-image: url('/static/icons/filter_list.svg');
    -webkit-mask-image: url('/static/icons/filter_list.svg');
}

.icon-restart-alt {
    mask-image: url('/static/icons/restart_alt.svg');
    -webkit-mask-image: url('/static/icons/restart_alt.svg');
}

.icon-dashboard {
    mask-image: url('/static/icons/dashboard.svg');
    -webkit-mask-image: url('/static/icons/dashboard.svg');
}

.icon-group {
    mask-image: url('/static/icons/group.svg');
    -webkit-mask-image: url('/static/icons/group.svg');
}

.icon-apps {
    mask-image: url('/static/icons/apps.svg');
    -webkit-mask-image: url('/static/icons/apps.svg');
}

.icon-history {
    mask-image: url('/static/icons/history.svg');
    -webkit-mask-image: url('/static/icons/history.svg');
}

.icon-logout {
    mask-image: url('/static/icons/logout.svg');
    -webkit-mask-image: url('/static/icons/logout.svg');
}

.icon-arrow-back {
    mask-image: url('/static/icons/arrow_back.svg');
    -webkit-mask-image: url('/static/icons/arrow_back.svg');
}

.icon-person,
.icon-account-circle {
    mask-image: url('/static/icons/account_circle.svg');
    -webkit-mask-image: url('/static/icons/account_circle.svg');
}

.icon-manage-accounts {
    mask-image: url('/static/icons/manage_accounts.svg');
    -webkit-mask-image: url('/static/icons/manage_accounts.svg');
}

.icon-admin-panel-settings {
    mask-image: url('/static/icons/admin_panel_settings.svg');
    -webkit-mask-image: url('/static/icons/admin_panel_settings.svg');
}

.icon-block {
    mask-image: url('/static/icons/block.svg');
    -webkit-mask-image: url('/static/icons/block.svg');
}

.icon-save {
    mask-image: url('/static/icons/save.svg');
    -webkit-mask-image: url('/static/icons/save.svg');
}

.icon-settings {
    mask-image: url('/static/icons/settings.svg');
    -webkit-mask-image: url('/static/icons/settings.svg');
}

.icon-lock-reset {
    mask-image: url('/static/icons/lock_reset.svg');
    -webkit-mask-image: url('/static/icons/lock_reset.svg');
}

.icon-check-circle {
    mask-image: url('/static/icons/check_circle.svg');
    -webkit-mask-image: url('/static/icons/check_circle.svg');
}

.icon-lock-open {
    mask-image: url('/static/icons/lock_open.svg');
    -webkit-mask-image: url('/static/icons/lock_open.svg');
}

.icon-delete {
    mask-image: url('/static/icons/delete.svg');
    -webkit-mask-image: url('/static/icons/delete.svg');
}

.icon-add-circle {
    mask-image: url('/static/icons/add_circle.svg');
    -webkit-mask-image: url('/static/icons/add_circle.svg');
}

.icon-remove-circle {
    mask-image: url('/static/icons/do_not_disturb_on.svg');
    -webkit-mask-image: url('/static/icons/do_not_disturb_on.svg');
}

.icon-check {
    mask-image: url('/static/icons/check.svg');
    -webkit-mask-image: url('/static/icons/check.svg');
}

.icon-close {
    mask-image: url('/static/icons/close.svg');
    -webkit-mask-image: url('/static/icons/close.svg');
}

/* Main-Nav */
.main-nav {
    display: flex;
    justify-content: center;
    align-items: stretch;
    flex-wrap: wrap;
    gap: var(--main-nav-gap);
    background: var(--main-nav-background-color);
    padding: 0 var(--medium-rem);
    box-shadow: var(--main-nav-box-shadow);
    margin: 0 0 var(--large-rem) 0;
    max-width: 100vw;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--theme-surface-a30);
}

.main-nav a {
    color: var(--main-nav-color);
    text-decoration: none;
    font-size: var(--main-nav-font-size);
    padding: var(--main-nav-link-padding);
    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
    transition: background-color 0.3s, color 0.3s, opacity 0.3s, border-color 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    line-height: 1.2;
    opacity: 0.75;
    border-bottom: 3px solid transparent;
    box-sizing: border-box;
}

.main-nav a:hover,
.main-nav a:focus {
    background-color: var(--main-nav-hover-focus-background-color);
    color: var(--main-nav-hover-focus-color);
    outline: none;
    opacity: 1;
}

.main-nav a.active {
    background-color: var(--main-nav-active-background-color);
    color: var(--main-nav-active-color);
    opacity: 1;
    font-weight: bold;
    border-bottom: 3px solid var(--theme-primary-a10);
}


/* Separator for nav */
.nav-separator {
    width: 2px;
    background-color: var(--theme-surface-tonal-a30);
    margin: 0 0.5rem;
    align-self: stretch;
}

@media (max-width: 860px) {
    .nav-separator {
        width: 100%;
        height: 1px;
        margin: 0.5rem 0;
    }
}

/* Responsive Main-Nav */
@media (max-width: 860px) {
    .main-nav {
        flex-direction: column;
        gap: var(--main-nav-mobile-gap);
        padding: var(--main-nav-mobile-padding);
        align-items: center;
    }

    .main-nav a,
    .main-nav .nav-dropdown {
        width: 100%;
        border-radius: var(--border-radius-md);
    }

    .main-nav .nav-dropdown {
        flex-direction: column;
        align-items: stretch;
    }

    .main-nav a,
    .main-nav .nav-dropdown-toggle {
        text-align: left;
        justify-content: flex-start;
        padding-left: calc(50% - 4rem);
    }

    .main-nav .nav-dropdown-toggle {
        width: 100%;
    }
}


/* Standard Dropdown */
.nav-dropdown {
    position: relative;
    display: inline-flex;
    align-items: stretch;
    align-self: stretch;
}

.nav-dropdown-toggle {
    background: transparent;
    border: none;
    color: var(--main-nav-color);
    font-weight: normal;
    font-size: var(--main-nav-font-size);
    padding: var(--main-nav-link-padding);
    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
    transition: background-color 0.3s, color 0.3s, opacity 0.3s, border-color 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    line-height: 1.2;
    cursor: pointer;
    opacity: 0.75;
    border-bottom: 3px solid transparent;
    box-sizing: border-box;
}

.nav-dropdown-toggle:hover,
.nav-dropdown-toggle:focus {
    background-color: var(--main-nav-hover-focus-background-color);
    color: var(--main-nav-hover-focus-color);
    outline: none;
    opacity: 1;
}

.nav-dropdown-toggle[aria-expanded="true"] {
    background-color: var(--main-nav-active-background-color);
    color: var(--main-nav-active-color);
    opacity: 1;
    font-weight: bold;
    border-bottom: 3px solid var(--theme-primary-a10);
    outline: none;
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--main-nav-background-color);
    border: 1px solid var(--theme-surface-tonal-a30);
    border-radius: var(--border-radius-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
    min-width: 15rem;
    z-index: 200;
    padding: 0.5rem;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-dropdown-menu.show {
    display: flex;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--main-nav-color) !important;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: background-color 0.2s, color 0.2s;
    border-bottom: none !important;
    opacity: 0.85;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--main-nav-hover-focus-background-color) !important;
    color: var(--main-nav-hover-focus-color) !important;
    opacity: 1;
}

@media (max-width: 860px) {
    .nav-dropdown-menu {
        position: static;
        width: 100%;
        margin-top: 0;
        background: var(--theme-surface-a30);
        border: none;
        box-shadow: none;
        padding: 0.5rem;
        border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
    }
}

/* Main Content */
main {
    flex: 1;
}

/* Headers */
header {
    text-align: center;
    padding: 0;
}

h1,
h2 {
    color: var(--header-color);
    text-align: center;
    margin: var(--small-rem);
    font-size: var(--medium-large-rem);
}

/* Section Styles */
section {
    background-color: var(--section-background-color);
    padding: var(--medium-rem);
    margin: var(--medium-rem) auto;
    width: 100%;
    max-width: var(--section-wide);
    box-sizing: border-box;
    border-radius: var(--border-radius-md);
    box-shadow: var(--section-box-shadow);
    border: 1px solid var(--theme-surface-tonal-a20);
}

/* Form Styles */
form {
    display: flex;
    justify-content: space-between;
    gap: var(--small-rem);
}

/* Vertical Forms (login, register) */
form.vertical {
    flex-direction: column;
    align-items: center;
    width: 100%;
}

form.vertical input {
    width: 100%;
    box-sizing: border-box;
}

form.vertical button {
    margin-top: var(--button-margin-top);
}

/* Section Text */
.section-text {
    margin-bottom: var(--medium-rem);
    text-align: left;
    color: var(--section-text-color);
    font-size: var(--section-text-font-size);
}

input[type="text"],
input[type="password"],
input[type="email"],
select {
    box-sizing: border-box;
    background-color: var(--input-background-color);
    color: var(--input-color);
    flex-grow: 1;
    font-size: var(--input-font-size);
    height: var(--input-height);
    padding: 0 var(--small-rem);
    border-radius: var(--border-radius-sm);
    border: var(--input-border);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
select:focus {
    border-color: var(--input-hover-border-color);
    outline: none;
}

/* Responsive Form */
@media (max-width: 860px) {

    input[type="text"],
    input[type="password"],
    input[type="email"],
    select {
        width: 100%;
        max-width: 100%;
        margin-left: 0;
        margin-right: 0;
        box-sizing: border-box;
    }

    .button-container,
    form,
    form.vertical {
        flex-direction: column;
        align-items: stretch;
        gap: var(--button-responsive-gap);
    }
}

/* Button */
.button-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--small-rem);
}

.btn,
#custom-alert-close {
    box-sizing: border-box;
    position: relative;
    background-color: var(--button-background-color);
    color: var(--button-color);
    padding: var(--small-rem) var(--medium-rem);
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    width: var(--button-width);
    height: var(--button-height);
    font-size: var(--medium-rem);
    line-height: 1.2;
    text-decoration: var(--button-font-decoration);
    cursor: pointer;
    transition: background-color 0.3s, border-color 0.3s;
}

.btn:hover,
button:hover,
#custom-alert-close:hover {
    background-color: var(--button-hover-background-color);
    color: var(--button-color);
}

button:disabled,
button.btn:disabled,
button.fb-action-btn:disabled,
button.admin-action-btn:disabled,
.btn:disabled,
.fb-action-btn:disabled,
.admin-action-btn:disabled,
input:disabled,
input[type="text"]:disabled,
input[type="password"]:disabled,
input[type="number"]:disabled,
textarea:disabled,
select:disabled {
    opacity: 0.45 !important;
    cursor: not-allowed !important;
    pointer-events: none;
    box-shadow: none !important;
    filter: grayscale(40%);
}

.btn-secondary {
    box-sizing: border-box;
    background-color: var(--theme-surface-tonal-a20);
    border: 1px solid var(--theme-surface-a30);
    color: var(--theme-light-a0);
    width: auto;
    min-width: 5rem;
    height: var(--button-height);
    padding: 0 0.75rem;
    font-size: var(--medium-rem);
}

@media (max-width: 860px) {

    .btn,
    button.btn,
    #custom-alert-close {
        width: 100%;
        max-width: 100%;
        margin-left: 0;
        margin-right: 0;
        box-sizing: border-box;
    }
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--theme-surface-tonal-a30);
    border-color: var(--theme-surface-a40);
    color: var(--theme-light-a0);
}

/* Button Badge */
.badge {
    border-radius: var(--border-radius-round);
    width: var(--badge-size);
    height: var(--badge-size);
    display: flex;
    position: absolute;
    background-color: var(--badge-background-color);
    color: var(--badge-color);
    align-items: center;
    justify-content: center;
    top: var(--badge-position-top);
    right: var(--badge-position-right);
    font-size: var(--small-rem);
    transition: all 0.3s;
    z-index: 1;
}

/* Progress Bar */
#progress-bar-container-audio,
#progress-bar-container-video,
#progress-bar-container-upload {
    background-color: var(--progress-bar-background-color);
    border-radius: var(--border-radius-sm);
    margin-top: var(--medium-rem);
    margin-bottom: var(--medium-rem);
    overflow: hidden;
}

#progress-bar-audio,
#progress-bar-video,
#progress-bar-upload {
    background-color: var(--progress-bar-background-color);
    width: 100%;
    height: var(--small-rem);
    display: flex;
    align-items: center;
}

#progress-bar-fill-audio,
#progress-bar-fill-video,
#progress-bar-fill-upload {
    background-color: var(--progress-bar-fill-background-color);
    color: var(--progress-bar-color);
    border-radius: var(--border-radius-sm);
    height: var(--small-rem);
    width: 0%;
    transition: width 0.5s;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--table-margin);
}

tr {
    display: table-row;
    vertical-align: inherit;
    unicode-bidi: isolate;
    border-color: inherit;
    border-radius: var(--border-radius-md);
}

th,
td {
    padding: var(--table-cell-padding);
    text-align: left;
    color: var(--table-th-color);
}

th {
    background: var(--table-th-background-color);
    font-weight: bold;
}

td {
    background: var(--table-td-background-color);
}

tr:nth-child(even) td {
    background: var(--table-tr-background-color);
}

@media (max-width: 860px) {
    table {
        font-size: var(--small-rem);
    }

    th,
    td {
        padding: 0.4rem 0.5rem;
    }
}

/* Form Group */
.form-group {
    margin-bottom: var(--form-group-margin-bottom);
    width: 100%;
}

.form-label {
    display: block;
    margin-bottom: var(--form-label-margin-bottom);
    color: var(--form-label-color);
    font-size: var(--form-label-font-size);
}

.form-label .required {
    color: var(--status-box-error-color);
}

.field-hint {
    font-size: var(--form-hint-font-size);
    color: var(--form-hint-color);
    margin-top: var(--form-hint-margin-top);
}

.password-requirements {
    font-size: var(--form-hint-font-size);
    color: var(--form-hint-color);
    margin-top: var(--form-hint-margin-top);
    background: var(--status-box-info-background);
    padding: var(--status-box-padding);
    border-radius: var(--border-radius-sm);
    border-left: var(--status-box-border-width) solid var(--status-box-info-color);
}

.password-requirements h4 {
    margin: 0 0 0.5rem 0;
    color: var(--status-box-info-color);
}

.password-requirements ul {
    margin: var(--password-requirements-ul-margin);
    padding: 0;
}

.password-requirements li {
    margin: var(--password-requirements-li-margin);
}

/* Input validation state */
input.invalid,
input[type="text"].invalid,
input[type="password"].invalid,
input[type="email"].invalid,
form.vertical input.invalid {
    border-color: var(--status-box-error-color);
}

/* Error Page - Large Error Code Display */
.error-code {
    font-size: var(--medium-large-rem);
    font-weight: bold;
    color: var(--status-box-error-color);
    margin: 0;
    line-height: 1;
    text-align: center;
    opacity: 0.8;
}

@media (max-width: 480px) {
    .error-code {
        font-size: var(--medium-large-rem);
    }
}

/* Status Box */
.status-box {
    box-sizing: border-box;
    display: none;
    width: 100%;
    min-height: var(--status-box-min-height);
    padding: var(--status-box-padding);
    margin: var(--status-box-margin);
    border-radius: var(--border-radius-sm);
    border-left: var(--status-box-border-width) solid transparent;
    font-size: var(--status-box-font-size);
    text-align: left;
}

.status-box.info,
.status-box.success,
.status-box.error,
.status-box.warning {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
}

.status-box.info {
    background: var(--status-box-info-background);
    border-left-color: var(--status-box-info-color);
    color: var(--status-box-info-color);
}

.status-box.success {
    background: var(--status-box-success-background);
    border-left-color: var(--status-box-success-color);
    color: var(--status-box-success-color);
}

.status-box.error {
    background: var(--status-box-error-background);
    border-left-color: var(--status-box-error-color);
    color: var(--status-box-error-color);
}

.status-box.warning {
    background: var(--status-box-warning-background);
    border-left-color: var(--status-box-warning-color);
    color: var(--status-box-warning-color);
}

.status-box-list {
    margin: var(--status-box-list-margin);
    padding: var(--status-box-list-padding);
}

.status-box-list li {
    margin: var(--status-box-list-li-margin);
}

.section-hint {
    font-size: var(--status-box-hint-font-size);
    color: var(--status-box-hint-color);
    margin-top: var(--status-box-hint-margin-top);
    text-align: center;
}

/* Auth Link */
.auth-link-container {
    text-align: center;
    margin-top: var(--auth-link-container-margin-top);
}

.auth-link {
    color: var(--auth-link-color);
    text-decoration: none;
    font-size: var(--auth-link-font-size);
    transition: var(--auth-link-transition);
}

.auth-link:hover,
.auth-link:focus {
    color: var(--auth-link-hover-color);
    text-decoration: underline;
}

/* Server Status */
.server-status-item {
    background-color: var(--server-status-background-color);
    color: var(--server-status-color);
    padding: var(--server-status-item-padding);
    margin: var(--small-rem) 0;
    border-radius: var(--border-radius-sm);
    border: var(--server-status-border);
}

/* Logout Link */
#logout {
    color: var(--link-color);
    text-decoration: none;
    cursor: pointer;
}

#logout:hover {
    color: var(--link-hover-color);
}

/* Footer */
footer {
    text-align: center;
    margin-top: var(--medium-rem);
    color: var(--footer-color);
}

/* Confirm & Alert Box */
#custom-alert-blur {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9998;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    pointer-events: none;
}

#custom-alert {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ==========================================================================
   Unified Modal & Dialog Design System (UX/UI Best Practice)
   ========================================================================== */

div.modal-box,
div#custom-alert-box {
    background: var(--confirm-alert-background-color);
    color: var(--confirm-alert-color);
    border: var(--confirm-alert-border);
    border-radius: var(--border-radius-sm);
    padding: var(--confirm-alert-padding);
    width: 100%;
    max-width: var(--confirm-alert-max-width);
    min-width: 0;
    box-sizing: border-box;
    box-shadow: var(--section-box-shadow);
    display: flex;
    flex-direction: column;
    pointer-events: auto;
    font-family: inherit;
}

/* Standardized 3-Part Modal Anatomy */
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--theme-surface-tonal-a20);
    padding-bottom: 0.75rem;
    margin: 0;
    width: 100%;
    box-sizing: border-box;
}

/* Exception: simple confirm alert header without bottom line */
#custom-alert-box .modal-header {
    border-bottom: none;
    padding-bottom: 0;
    justify-content: center;
}

h3.modal-title,
div.modal-header h3.modal-title,
.modal-title {
    margin: 0;
    font-size: var(--medium-sm-rem);
    font-weight: bold;
    color: var(--theme-light-a0);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    word-break: break-word;
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: var(--medium-rem);
    color: var(--theme-light-a0);
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 0.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--small-rem);
    margin-top: 1.25rem;
    width: 100%;
    box-sizing: border-box;
}

/* For alert/confirm dialogs, center buttons */
#custom-alert-box .modal-footer {
    justify-content: center;
}

#custom-alert-cancel {
    display: none;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--theme-surface-a50);
}

.font-mono {
    font-family: var(--font-family-mono);
}

.font-bold {
    font-weight: bold;
}

.font-semibold {
    font-weight: 600;
}

.stacked-cell {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    align-items: flex-start;
    justify-content: center;
}

.text-error {
    color: var(--status-box-error-color);
}

.btn-block {
    width: 100%;
    margin-top: var(--button-margin-top);
}

.mb-1 {
    margin-bottom: var(--medium-rem);
}

/* =========================================================================
   Admin Layout
   ========================================================================= */

/* Admin pages use standard body, header, main, and footer layout */

/* Admin Overview Stats Row */
.admin-stats-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: center;
    gap: 1.5rem;
    padding: 0.5rem 0;
}

.stat-item {
    text-align: center;
    flex: 1 1 120px;
    padding: 0.5rem;
}

.stat-value {
    display: block;
    font-size: var(--medium-large-rem);
    font-weight: bold;
    color: var(--theme-light-a0);
    line-height: 1.2;
}

.stat-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: var(--small-rem);
    color: var(--theme-surface-a50);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.3rem;
}

/* Admin Section */
section.admin-section,
.admin-section {
    max-width: var(--section-wide);
    width: 100%;
    box-sizing: border-box;
    margin: var(--medium-rem) auto;
    overflow-x: auto;
    border: 1px solid var(--theme-surface-tonal-a20);
}

.admin-section h2 {
    color: var(--theme-light-a0);
    font-size: var(--medium-large-rem);
    margin: 0 0 var(--medium-rem) 0;
    padding-bottom: 0;
    border-bottom: none;
}

.admin-section h3 {
    color: var(--theme-light-a0);
    font-size: var(--medium-sm-rem);
    margin: 0 0 0.75rem 0;
    font-weight: 600;
}

.admin-subgroup {
    margin-bottom: 1rem;
    padding-bottom: 0;
    border-bottom: none;
}

.admin-subgroup:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

/* Admin UUID/Details cells - monospace truncation */
.admin-uuid {
    font-family: monospace;
    font-size: var(--small-rem);
    color: var(--theme-surface-a50);
    white-space: nowrap;
}

.admin-details {
    font-size: var(--small-rem);
    color: var(--theme-surface-a50);
    max-width: 20rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Admin Filters Grid */
.admin-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.filter-group label {
    font-size: var(--small-rem);
    color: var(--theme-surface-a50);
    white-space: nowrap;
}

.filter-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    justify-content: flex-end;
    margin-top: 0.25rem;
    height: var(--button-height);
}

.filter-actions .btn {
    min-width: 8rem;
}

@media (max-width: 860px) {
    .filter-actions {
        flex-direction: column;
        width: 100%;
        margin-top: 1rem;
        height: auto;
    }

    .filter-actions .btn {
        width: 100%;
        margin: 0;
    }
}

.admin-filter-label {
    color: var(--theme-surface-a50);
    font-size: var(--medium-rem);
    white-space: nowrap;
}

.admin-filter-input,
.admin-filter-select {
    padding: 0 0.75rem;
    background-color: var(--theme-surface-tonal-a10);
    color: var(--theme-light-a0);
    border: 1px solid var(--theme-surface-a30);
    border-radius: var(--border-radius-sm);
    font-size: var(--medium-rem);
    height: var(--button-height);
    min-height: var(--button-height);
    box-sizing: border-box;
    width: 100%;
}

.admin-btn-sm {
    width: auto;
    min-width: 5rem;
    height: var(--button-sm-height);
    padding: 0.25rem 0.75rem;
    font-size: var(--small-rem);
}

/* Action Icon Buttons */
button.btn.admin-action-btn,
button.btn.fb-action-btn,
table .btn.admin-action-btn,
table .btn.fb-action-btn,
table a.admin-action-btn,
table a.fb-action-btn,
.admin-action-btn,
.fb-action-btn {
    background: transparent;
    border: none;
    box-shadow: none;
    color: var(--theme-light-a0);
    cursor: pointer;
    width: 2rem;
    height: 2rem;
    min-width: 2rem;
    padding: 0;
    margin: 0 0.1rem;
    border-radius: var(--border-radius-round);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, color 0.2s, transform 0.1s;
    opacity: 0.85;
    text-decoration: none;
}

button.btn.admin-action-btn:hover:not(:disabled),
button.btn.fb-action-btn:hover:not(:disabled),
table .btn.admin-action-btn:hover:not(:disabled),
table .btn.fb-action-btn:hover:not(:disabled),
table a.admin-action-btn:hover,
table a.fb-action-btn:hover,
.admin-action-btn:hover:not(:disabled),
.fb-action-btn:hover:not(:disabled) {
    background: var(--theme-surface-tonal-a30);
    color: var(--theme-light-a0);
    opacity: 1;
    transform: var(--button-hover-scale);
}

button.btn.admin-action-btn:active:not(:disabled),
button.btn.fb-action-btn:active:not(:disabled),
table .btn.admin-action-btn:active:not(:disabled),
table .btn.fb-action-btn:active:not(:disabled),
table a.admin-action-btn:active,
table a.fb-action-btn:active,
.admin-action-btn:active:not(:disabled),
.fb-action-btn:active:not(:disabled) {
    transform: var(--button-active-scale);
}

button.btn.admin-action-btn .ui-icon,
button.btn.fb-action-btn .ui-icon,
.admin-action-btn .ui-icon,
.fb-action-btn .ui-icon {
    width: 1.25rem;
    height: 1.25rem;
    margin: 0;
}

button.btn.admin-action-btn:disabled,
button.btn.fb-action-btn:disabled,
.admin-action-btn:disabled,
.fb-action-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    background: transparent;
    filter: grayscale(40%);
    pointer-events: none;
}

/* Admin Button Variants */
.admin-btn-secondary {
    background-color: var(--theme-surface-tonal-a20);
    border-color: var(--theme-surface-a30);
    color: var(--theme-light-a0);
}

.admin-btn-secondary:hover:not(:disabled) {
    background-color: var(--theme-surface-tonal-a30);
    border-color: var(--theme-surface-a40);
    color: var(--theme-light-a0);
}

.admin-btn-danger {
    background-color: var(--status-box-error-color);
    color: var(--theme-light-a0);
}

#role-select,
#new-password,
#app-url-input,
#visibility-select,
#default-role-select {
    width: auto;
    max-width: none;
    flex: 1 1 200px;
    height: var(--button-height);
    min-height: var(--button-height);
    padding: 0 0.75rem;
    box-sizing: border-box;
}

.service-role-select {
    max-width: var(--admin-input-sm-width);
    height: var(--button-sm-height);
    padding: 0.25rem 0.5rem;
    font-size: var(--small-rem);
    line-height: 1.5;
    box-sizing: border-box;
}

.admin-btn-danger:hover:not(:disabled) {
    filter: brightness(1.1);
}

/* Admin Meta Line (e.g. "15 users - page 1 of 3") */
.admin-meta {
    font-size: var(--small-rem);
    color: var(--theme-surface-a50);
    margin: 0 0 var(--medium-rem) 0;
}

/* Admin Definition List (profile key/value display) */
.admin-defs {
    display: grid;
    grid-template-columns: minmax(200px, 240px) 1fr;
    gap: 0.8rem 2rem;
    margin: 0.5rem 0;
    align-items: baseline;
}

.admin-defs dt {
    color: var(--theme-surface-a50);
    font-size: var(--medium-rem);
    font-weight: 500;
}

.admin-defs dd {
    margin: 0;
    color: var(--theme-light-a0);
    font-size: var(--medium-rem);
    word-break: break-word;
}

.admin-uuid-full {
    font-family: monospace;
    font-size: var(--medium-rem);
    word-break: break-all;
}

.admin-defs a,
.admin-uuid-full a,
.admin-table a:not(.admin-action-btn):not(.btn),
.admin-section a:not(.btn):not(.admin-action-btn),
.content a:not([class]),
main a:not([class]) {
    color: var(--theme-primary-a30);
    text-decoration: none;
    transition: color 0.2s ease, text-decoration 0.2s ease;
}

.admin-defs a:hover,
.admin-uuid-full a:hover,
.admin-table a:not(.admin-action-btn):not(.btn):hover,
.admin-section a:not(.btn):not(.admin-action-btn):hover,
.content a:not([class]):hover,
main a:not([class]):hover {
    color: var(--theme-light-a0);
    text-decoration: underline;
}

/* Admin Inline Form Row (filters, role change, password reset) */
.admin-inline-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
}

/* Detail Page Header inside Section */
.admin-detail-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

/* Admin Action Button Row */
.admin-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

/* Admin Checkbox Label */
.admin-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--medium-rem);
    color: var(--theme-light-a0);
    cursor: pointer;
}

/* ==========================================================================
   PREMIUM TOGGLE SWITCH & NOTIFICATION LIST
   ========================================================================== */

.notification-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.notification-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--theme-surface-tonal-a20);
    border: 1px solid var(--theme-surface-tonal-a30);
    border-radius: var(--border-radius-md);
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.notification-item:hover {
    background: var(--theme-surface-tonal-a10);
    border-color: var(--theme-surface-tonal-a40);
}

.ui-toggle {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
    user-select: none;
}

.ui-toggle input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.ui-toggle-slider {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--theme-surface-tonal-a40);
    border-radius: 24px;
    transition: background-color 0.3s cubic-bezier(0.4, 0.0, 0.2, 1), box-shadow 0.3s ease;
    box-shadow: inset 0 0 0 1px var(--theme-surface-tonal-a50);
}

.ui-toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--theme-light-a0);
    border-radius: var(--border-radius-round);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.ui-toggle input[type="checkbox"]:checked~.ui-toggle-slider {
    background: var(--theme-primary-a0);
    box-shadow: inset 0 0 0 1px var(--theme-primary-a10);
}

.ui-toggle input[type="checkbox"]:checked~.ui-toggle-slider::after {
    transform: translateX(20px);
}

.ui-toggle input[type="checkbox"]:focus-visible~.ui-toggle-slider {
    outline: 2px solid var(--theme-primary-a20);
    outline-offset: 2px;
}

.ui-toggle-label {
    margin-right: 1rem;
    font-size: var(--medium-rem);
    color: var(--theme-light-a0);
    font-weight: 500;
}

.admin-filter-date-group {
    display: grid;
    grid-template-columns: 4rem 1fr;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 860px) {
    .admin-checkbox {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 0.25rem;
    }
}

.section-hint {
    font-size: var(--small-rem);
    color: var(--theme-surface-a50);
    margin-top: 0.5rem;
}

/* Admin Settings Grid (2-column enterprise settings layout) */
.admin-settings-grid {
    display: flex;
    flex-direction: column;
    margin-top: 1rem;
}

.admin-setting-row {
    display: grid;
    grid-template-columns: minmax(200px, 240px) 1fr;
    gap: 1rem 2rem;
    padding: 1rem 0;
    border-bottom: none;
    align-items: center;
}

.admin-settings-grid .admin-setting-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.admin-setting-label {
    align-self: start;
}

.admin-setting-label h3 {
    margin: 0 0 0.25rem 0;
    color: var(--theme-light-a0);
    font-size: var(--medium-sm-rem);
    font-weight: 600;
}

.admin-setting-label p {
    margin: 0;
    color: var(--theme-surface-a50);
    font-size: var(--small-rem);
    line-height: 1.4;
}

.admin-setting-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-end;
    width: 100%;
}

.admin-setting-content .admin-inline-form,
.admin-setting-content .admin-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
}

.admin-setting-content .btn,
.admin-setting-content .admin-inline-form .btn,
.admin-setting-content .admin-actions .btn {
    width: var(--button-lg-width);
    height: var(--button-height);
    box-sizing: border-box;
}

form.admin-form-stacked,
.admin-form-stacked {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-end;
    width: 100%;
}

@media (max-width: 860px) {
    .admin-setting-row {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.25rem 0;
        align-items: stretch;
    }

    .admin-setting-content,
    .admin-form-stacked,
    .admin-setting-content .admin-inline-form,
    .admin-setting-content .admin-actions {
        align-items: stretch;
        flex-direction: column;
        width: 100%;
    }

    .admin-setting-content input,
    .admin-setting-content select,
    .admin-setting-content button,
    .admin-setting-content .btn,
    .admin-setting-content .admin-inline-form .btn,
    .admin-setting-content .admin-actions .btn,
    .admin-filter-input,
    .admin-filter-select,
    #role-select,
    #app-url-input,
    #visibility-select,
    #default-role-select,
    #new-password {
        width: 100%;
        max-width: 100%;
        flex: 0 0 auto;
        height: var(--button-height);
        min-height: var(--button-height);
        padding: 0 0.75rem;
        font-size: var(--medium-rem);
        box-sizing: border-box;
        margin: 0;
    }

    .admin-table .admin-filter-select,
    .admin-table .service-role-select,
    .admin-table .admin-btn-sm,
    .admin-table .btn {
        height: var(--button-sm-height);
        min-height: var(--button-sm-height);
        padding: 0.25rem 0.5rem;
        font-size: var(--small-rem);
        width: auto;
    }

    /* Keep compact action buttons from blowing up to full width */
    table .btn.admin-action-btn,
    table .btn.fb-action-btn,
    table a.admin-action-btn,
    table a.fb-action-btn,
    .admin-action-btn,
    .fb-action-btn {
        width: 2rem;
        min-width: 2rem;
        height: 2rem;
        display: inline-flex;
        margin: 0 0.1rem;
    }

    input[type="date"].admin-filter-input {
        width: auto;
        max-width: none;
        flex: 1 1 auto;
    }
}

/* Admin Table */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--medium-rem) 0;
    font-size: var(--medium-rem);
}

.admin-table tr {
    display: table-row;
    vertical-align: inherit;
    unicode-bidi: isolate;
    border-color: inherit;
    border-radius: var(--border-radius-md);
}

table.admin-table th,
table.admin-table td,
.admin-table th,
.admin-table td {
    padding: 0.5rem 1rem;
    text-align: left;
    color: var(--theme-light-a0);
    border: none;
}

.admin-table th {
    background: var(--table-th-background-color);
    font-weight: bold;
}

.admin-table td {
    background: var(--table-td-background-color);
}

.admin-table th.admin-table-actions,
.admin-table td.admin-table-actions {
    text-align: right;
    white-space: nowrap;
}

.admin-table td.admin-table-actions .btn {
    margin-left: 0.5rem;
}

.admin-table tr:nth-child(even) td {
    background: var(--table-tr-background-color);
}

.admin-table tr:hover td {
    background: var(--admin-table-row-hover-color);
}

/* Admin Badge */
.admin-badge {
    display: inline-block;
    margin: 0.15rem 0.3rem 0.15rem 0;
    padding: var(--admin-badge-padding);
    border-radius: var(--border-radius-lg);
    font-size: var(--admin-badge-font-size);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    background: var(--theme-surface-tonal-a20);
    color: var(--theme-light-a0);
}

.admin-badge.admin {
    background: var(--theme-primary-a20);
    color: var(--theme-light-a0);
}

.admin-badge.user,
.admin-badge.active {
    background: var(--admin-badge-success-bg);
    color: var(--theme-light-a0);
}

.admin-badge.viewer {
    background: var(--theme-surface-tonal-a20);
    color: var(--theme-light-a0);
}

.admin-badge.blocked {
    background: var(--admin-badge-error-bg);
    color: var(--theme-light-a0);
}

.admin-badge.public {
    background: var(--admin-badge-info-bg);
    color: var(--theme-light-a0);
}

.admin-badge.restricted {
    background: var(--admin-badge-warning-bg);
    color: var(--theme-light-a0);
}

.admin-badge.muted {
    background: var(--theme-surface-tonal-a20);
    color: var(--theme-light-a20);
    margin-left: 8px;
    font-size: var(--admin-badge-font-size);
}

/* Admin Pagination */
.admin-pagination {
    display: flex;
    justify-content: center;
    gap: 0.35rem;
    margin-top: var(--large-rem);
}

.admin-pagination a,
.admin-pagination span {
    padding: var(--admin-pagination-link-padding);
    border-radius: var(--border-radius-sm);
    background: var(--theme-surface-tonal-a10);
    border: 1px solid var(--theme-surface-a20);
    color: var(--theme-surface-a50);
    text-decoration: none;
    font-size: var(--small-rem);
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.2rem;
}

.admin-pagination a:hover {
    background: var(--theme-surface-tonal-a20);
    border-color: var(--theme-surface-a30);
    color: var(--theme-light-a0);
}

.admin-pagination .active {
    background: var(--admin-pagination-active-background);
    border-color: var(--theme-surface-a40);
    color: var(--admin-pagination-active-color);
    font-weight: bold;
}

.admin-pagination .disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
    filter: grayscale(40%);
    background: var(--theme-surface-tonal-a10);
    border-color: var(--theme-surface-a20);
    color: var(--theme-surface-a50);
}

/* Admin Mobile Responsive */
@media (max-width: 860px) {
    .admin-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .admin-table {
        font-size: var(--small-rem);
    }

    .admin-table th,
    .admin-table td {
        padding: 0.5rem;
    }

    div.modal-box,
    div#custom-alert-box {
        min-width: auto;
        width: 90vw;
        max-width: 90vw;
    }
}

/* ============================================================================
   MOBILE NAVIGATION TOGGLE
   ============================================================================ */
.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--theme-light-a0);
    cursor: pointer;
    padding: 0.5rem;
    margin: 0 auto;
    font-size: 1.5rem;
}

.mobile-nav-toggle .ui-icon {
    top: 0;
    margin: 0;
}

.icon-menu {
    mask-image: url('/static/icons/menu.svg');
    -webkit-mask-image: url('/static/icons/menu.svg');
}

@media (max-width: 860px) {
    .mobile-nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .main-nav {
        display: none;
        /* hidden by default on mobile */
    }

    .main-nav.show-mobile {
        display: flex;
        /* shows when toggled */
    }
}


/* ==========================================================================
   PREMIUM TOGGLE SWITCH & NOTIFICATION LIST
   ========================================================================== */

.notification-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.notification-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--theme-surface-tonal-a20);
    border: 1px solid var(--theme-surface-tonal-a30);
    border-radius: var(--border-radius-md);
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.notification-item:hover {
    background: var(--theme-surface-tonal-a30);
    border-color: var(--theme-surface-tonal-a40);
}

.ui-toggle {
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    position: relative;
    user-select: none;
}

.ui-toggle input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.ui-toggle-slider {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--theme-surface-tonal-a40);
    border-radius: 24px;
    transition: background 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    box-shadow: inset 0 0 0 1px var(--theme-surface-tonal-a50);
}

.ui-toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--theme-light-a0);
    border-radius: var(--border-radius-round);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.ui-toggle input[type="checkbox"]:checked~.ui-toggle-slider {
    background: var(--theme-primary-a0);
    box-shadow: inset 0 0 0 1px var(--theme-primary-a10);
}

.ui-toggle input[type="checkbox"]:checked~.ui-toggle-slider::after {
    transform: translateX(20px);
}

.ui-toggle input[type="checkbox"]:focus-visible~.ui-toggle-slider {
    outline: 2px solid var(--theme-primary-a20);
    outline-offset: 2px;
}

.ui-toggle-label {
    margin-right: 1rem;
    font-size: var(--medium-rem);
    color: var(--theme-light-a0);
    font-weight: 500;
}