/* PnP v2.0 — Main stylesheet
 * Clean, professional layout. No CSS framework dependency.
 * Colors and typography aligned with i2D Style Guide rev 1.
 */

/* ===== Web Fonts ===== */
@font-face {
    font-family: 'Sony Sketch EF';
    src: url('/static/fonts/Sony_Sketch_EF.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* ===== Design Tokens ===== */
:root {
    /* Brand Colors (i2D Style Guide rev 1) */
    --i2d-primary: #0D70B6;        /* PMS 2383c — i2D Blue */
    --i2d-primary-dark: #095a94;
    --i2d-primary-deeper: #074a7a;
    --i2d-red: #FF0100;             /* PMS 2347c — i2D Red */
    --i2d-secondary: #D9EBF6;
    --i2d-secondary-muted: #e8f1f8;

    /* Neutrals */
    --i2d-grey-50: #F8F9FA;
    --i2d-grey-100: #E9ECEF;
    --i2d-grey-200: #DEE2E6;
    --i2d-grey-300: #CED4DA;
    --i2d-grey-400: #ADB5BD;
    --i2d-grey-500: #6C757D;
    --i2d-grey-600: #495057;
    --i2d-grey-700: #343A40;
    --i2d-grey-800: #212529;

    /* Semantic */
    --i2d-error: #C0392B;
    --i2d-error-bg: #FDEDEB;
    --i2d-error-border: #E6A19A;
    --i2d-warning: #E67E22;
    --i2d-warning-bg: #FDF2E9;
    --i2d-warning-border: #F0C89A;
    --i2d-success: #1E8449;
    --i2d-success-bg: #E8F6EE;

    /* Typography */
    --font-title: 'Sony Sketch EF', 'Nunito', sans-serif;
    --font-ui: 'Nunito', sans-serif;
    --font-mono: 'Consolas', 'Monaco', monospace;
    --text-xs: 0.6875rem;
    --text-sm: 0.75rem;
    --text-base: 0.8125rem;
    --text-md: 0.875rem;
    --text-lg: 1rem;
    --text-xl: 1.125rem;
    --text-2xl: 1.375rem;
    --text-3xl: 1.75rem;

    /* Spacing */
    --sp-1: 0.125rem;
    --sp-2: 0.25rem;
    --sp-3: 0.375rem;
    --sp-4: 0.5rem;
    --sp-5: 0.625rem;
    --sp-6: 0.75rem;
    --sp-8: 1rem;
    --sp-10: 1.25rem;
    --sp-12: 1.5rem;
    --sp-16: 2rem;
    --sp-20: 2.5rem;

    /* Layout */
    --nav-height: 48px;
    --sidebar-width: 260px;
    --tab-height: 38px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-inset: inset 0 1px 2px rgba(0,0,0,0.06);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-ui);
    color: var(--i2d-grey-800);
    background-color: var(--i2d-grey-100);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== App Header ===== */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background-color: var(--i2d-primary);
    color: #ffffff;
    border-bottom: 3px solid var(--i2d-red);
}

.app-header__brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.app-header__logo {
    height: 32px;
    width: auto;
}

.app-header__title {
    font-family: var(--font-title);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.app-header__subtitle {
    font-size: 0.85rem;
    color: var(--i2d-grey-400);
    font-weight: 400;
}

.app-header__nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.app-header__nav a {
    text-decoration: none;
}

.app-header__user {
    font-size: 0.8125rem;
    color: var(--i2d-grey-300);
    margin-right: 0.25rem;
}

/* Nav buttons — consistent size and active-page indicator */
.nav-btn {
    min-width: 5.5rem;
    text-align: center;
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    line-height: 1.5;
}

.nav-btn--active {
    background-color: var(--i2d-brand, #0D70B6);
    color: #fff;
    pointer-events: none;
    border-bottom: 3px solid var(--i2d-red);
}

/* ===== Toolbar ===== */
.toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    background-color: var(--i2d-grey-100);
    border-bottom: 1px solid var(--i2d-grey-300);
}

.toolbar__group {
    display: flex;
    gap: 0.25rem;
}

.toolbar__group + .toolbar__group {
    margin-left: 0.5rem;
    padding-left: 0.75rem;
    border-left: 1px solid var(--i2d-grey-300);
}

.toolbar__btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--i2d-grey-800);
    background-color: #ffffff;
    text-decoration: none;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 0;
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s;
}

.toolbar__btn:hover {
    background-color: var(--i2d-grey-100);
    border-color: var(--i2d-grey-400);
}

.toolbar__btn:active {
    background-color: var(--i2d-grey-200);
}

.toolbar__btn--primary {
    color: #ffffff;
    background-color: var(--i2d-primary);
    border-color: var(--i2d-primary);
}

.toolbar__btn--primary:hover {
    background-color: var(--i2d-primary-dark);
    border-color: var(--i2d-primary-dark);
}

.toolbar__btn--primary:active {
    background-color: var(--i2d-primary-deeper);
}

/* ===== Main Content ===== */
.app-main {
    flex: 1;
    padding: 1.5rem;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

/* ===== Form Field ===== */
.form-field {
    margin-bottom: var(--sp-4);
}

.form-field__label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--i2d-grey-600);
    margin-bottom: var(--sp-1);
}

.form-field__input-group {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.form-field__input {
    flex: 1;
    padding: var(--sp-2) var(--sp-4);
    /* font-family: inherit ensures datetime-local / date / time inputs render
       in the project font (Nunito) instead of the browser UA monospace. */
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--i2d-grey-800);
    background-color: #ffffff;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 4px;
    transition: border-color 0.15s, box-shadow 0.15s;
    max-width: 200px;
}

.form-field__input:focus {
    outline: none;
    border-color: var(--i2d-primary);
    box-shadow: 0 0 0 2px rgba(13, 112, 182, 0.15);
}

.form-field--error .form-field__input {
    border-color: var(--i2d-error);
}

.form-field--error .form-field__input:focus {
    box-shadow: 0 0 0 2px rgba(192, 57, 43, 0.15);
}

.form-field__unit {
    font-size: 0.8125rem;
    color: var(--i2d-grey-500);
    white-space: nowrap;
    min-width: 2rem;
}

.form-field__error {
    font-size: 0.75rem;
    color: var(--i2d-error);
    min-height: 0.875rem;
    margin-top: var(--sp-1);
}

.form-field__checkbox {
    width: 1rem;
    height: 1rem;
    margin-right: var(--sp-3);
    vertical-align: middle;
    accent-color: var(--i2d-primary);
    cursor: pointer;
}

/* Client-side validation warning state */
.form-field--has-warning .form-field__input {
    border-color: var(--i2d-warning);
}

.form-field--has-warning .form-field__input:focus {
    box-shadow: 0 0 0 2px rgba(230, 126, 34, 0.15);
}

.form-field--has-warning .form-field__error {
    color: var(--i2d-warning);
}

/* Client-side validation error state (inherits from --error) */
.form-field--has-error .form-field__input {
    border-color: var(--i2d-error);
}

.form-field--has-error .form-field__input:focus {
    box-shadow: 0 0 0 2px rgba(192, 57, 43, 0.15);
}

.form-field--has-error .form-field__error {
    color: var(--i2d-error);
}

/* ===== Form Group (Fieldset) ===== */
.form-group {
    border: 1px solid var(--i2d-grey-300);
    border-radius: 6px;
    padding: var(--sp-6) var(--sp-8);
    margin-bottom: var(--sp-8);
    background-color: #ffffff;
}

.form-group__title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--i2d-primary-deeper);
    padding: 0 var(--sp-3);
}

.form-group__description {
    font-size: 0.8125rem;
    color: var(--i2d-grey-500);
    margin-top: var(--sp-1);
    margin-bottom: var(--sp-4);
}

.form-group__fields {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--sp-2) var(--sp-8);
}

/* ===== Status Bar ===== */
.status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.375rem 1.5rem;
    background-color: var(--i2d-grey-100);
    border-bottom: 1px solid var(--i2d-grey-300);
    font-size: 0.75rem;
    color: var(--i2d-grey-600);
}

.status-bar__section {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.status-bar__label {
    font-weight: 600;
}

.status-bar__value {
    font-weight: 400;
}

.status-bar__spinner {
    margin-left: 0.375rem;
}

/* Clickable simulation name display */
.status-bar__name-display {
    cursor: pointer;
    padding: 0.0625rem 0.25rem;
    border: 1px solid transparent;
    border-radius: 3px;
    transition: background-color 0.15s, border-color 0.15s;
}

.status-bar__name-display--editable:hover {
    background-color: rgba(13, 112, 182, 0.06);
    border-color: var(--i2d-grey-300);
}

/* Inline name editing input — overlays the display span via absolute positioning
   so the name section width stays stable and other status-bar sections don't shift. */
.status-bar__name-input {
    font-size: 0.75rem;
    font-family: inherit;
    color: var(--i2d-grey-800);
    padding: 0.0625rem 0.25rem;
    border: 1px solid var(--i2d-primary);
    border-radius: 3px;
    outline: none;
    box-shadow: 0 0 0 2px rgba(13, 112, 182, 0.15);
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    box-sizing: border-box;
}

/* Brief green flash after save */
.status-bar__name-display--saved {
    background-color: rgba(30, 132, 73, 0.12);
    border-color: var(--i2d-success);
    transition: background-color 0.15s, border-color 0.15s;
}

/* Status bar section separators */
.status-bar__section--name {
    flex: 0 1 auto;
    min-width: 0;
    max-width: 24rem;
    position: relative;
}

.status-bar__section--status {
    min-width: 5rem;
}

.status-bar__section--modified {
    min-width: 4.5rem;
    color: var(--i2d-error);
    font-weight: 600;
}

.status-bar__section--crc {
    min-width: 6rem;
    font-family: monospace;
}

.status-bar__section--units {
    min-width: 3rem;
}

.status-bar__section--messages {
    flex: 1 1 auto;
    justify-content: flex-end;
    color: var(--i2d-grey-500);
    font-style: italic;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Status colour coding */
.status-bar__value--idle {
    color: var(--i2d-grey-500);
}

.status-bar__value--running {
    color: var(--i2d-primary);
}

.status-bar__value--completed {
    color: var(--i2d-success);
}

.status-bar__value--failed {
    color: var(--i2d-error);
}

.status-bar__value--modified {
    color: var(--i2d-error);
    font-weight: 600;
}

/* ===== HTMX Indicator ===== */
.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    display: inline-block;
}

/* ===== Footer ===== */
.app-footer {
    padding: 0.75rem 1.5rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--i2d-grey-400);
    border-top: 1px solid var(--i2d-grey-200);
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    border-bottom: 2px solid var(--i2d-grey-300);
    margin-bottom: var(--sp-8);
}

.tabs__btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--i2d-grey-500);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.tabs__btn:hover {
    color: var(--i2d-grey-800);
}

.tabs__btn--active {
    color: var(--i2d-primary);
    border-bottom-color: var(--i2d-red);
}

/* ===== Login Page ===== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.login-card {
    background-color: #ffffff;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 8px;
    padding: 2rem 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-md);
}

.login-card__logo {
      text-align: center;
      margin-bottom: 1.5rem;
}

.login-logo {
    width: 100%;
}

.login-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--i2d-primary-deeper);
    margin-bottom: 0.25rem;
}

.login-card__subtitle {
    font-size: 0.875rem;
    color: var(--i2d-grey-500);
    margin-bottom: 1.5rem;
}

.login-card__error {
    background-color: var(--i2d-error-bg);
    border: 1px solid var(--i2d-error-border);
    color: var(--i2d-error);
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    font-size: 0.8125rem;
    margin-bottom: 1rem;
}

.login-form__input {
    max-width: none;
    width: 100%;
}

.login-form__submit {
    width: 100%;
    padding: 0.625rem;
    font-size: 0.9375rem;
    margin-top: 0.5rem;
}

/* ===== Password visibility toggle ===== */
.pw-toggle-wrapper {
    position: relative;
}

.pw-toggle {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    color: var(--i2d-grey-500);
    display: flex;
    align-items: center;
    line-height: 0;
}

.pw-toggle:hover {
    color: var(--i2d-grey-700);
}

.pw-toggle__eye {
    width: 1rem;
    height: 1rem;
}

/* Ensure typed text is never hidden behind the toggle button */
.pw-toggle-wrapper .form-field__input {
    padding-right: 2.25rem;
}

/* ===== Dashboard Layout ===== */
.dashboard {
    display: flex;
    gap: 0;
    min-height: 70vh;
}

.dashboard__sidebar {
    width: 240px;
    min-width: 240px;
    background-color: #ffffff;
    border-right: 1px solid var(--i2d-grey-300);
    padding: 1rem 0;
    overflow-y: auto;
}

.sidebar__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.5rem 0 1rem;
    margin-bottom: 0.75rem;
}

.sidebar__title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--i2d-grey-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0;
    margin-bottom: 0;
}

/* Sidebar toggle button */
.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--i2d-grey-500);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background-color 0.15s, color 0.15s;
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    background-color: var(--i2d-grey-100);
    color: var(--i2d-grey-700);
}

.sidebar-toggle__icon {
    width: 1rem;
    height: 1rem;
    transition: transform 0.2s ease;
}

/* Collapsed sidebar state */
.dashboard--sidebar-collapsed .dashboard__sidebar {
    width: 2.5rem;
    min-width: 2.5rem;
    padding: 1rem 0;
    overflow: hidden;
}

.dashboard--sidebar-collapsed .sidebar__header {
    justify-content: center;
    padding: 0 0.5rem;
}

.dashboard--sidebar-collapsed .sidebar__title {
    display: none;
}

.dashboard--sidebar-collapsed .sidebar__list {
    display: none;
}

.dashboard--sidebar-collapsed .sidebar-toggle__icon {
    transform: rotate(180deg);
}

.dashboard__main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.dashboard__content {
    flex: 1;
    padding: var(--sp-8);
}

.dashboard__placeholder {
    color: var(--i2d-grey-400);
    font-size: 0.875rem;
    text-align: center;
    padding: 3rem 1rem;
}

/* ===== Simulation List ===== */
.simulation-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.simulation-list__item {
    border-bottom: 1px solid var(--i2d-grey-50);
    position: relative;
    display: flex;
    align-items: stretch;
}

.simulation-list__link {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    color: var(--i2d-grey-600);
    text-decoration: none;
    transition: background-color 0.1s;
    min-width: 0;
    cursor: pointer;
}

.simulation-list__link:hover {
    background-color: var(--i2d-grey-100);
}

.simulation-list__link--active {
    background-color: var(--i2d-secondary);
    color: var(--i2d-primary);
    font-weight: 600;
}

.simulation-list__name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.simulation-list__date {
    font-size: 0.6875rem;
    color: var(--i2d-grey-400);
    margin-top: 0.125rem;
}

.simulation-list__delete {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    min-width: 1.5rem;
    border: none;
    background: transparent;
    color: var(--i2d-grey-400);
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s;
}

.simulation-list__item:hover .simulation-list__delete {
    opacity: 1;
}

.simulation-list__delete:hover {
    color: var(--i2d-error);
}

.simulation-list__empty {
    padding: 1rem;
    font-size: 0.8125rem;
    color: var(--i2d-grey-400);
    text-align: center;
}

/* Inline rename — name span shows cursor hint; hidden input appears on click */
.simulation-list__name.rename-trigger {
    cursor: text;
}

.simulation-list__name.rename-trigger:hover {
    text-decoration: underline dotted;
}

.simulation-list__rename-input {
    font-size: 0.8125rem;
    font-family: inherit;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 2px;
    padding: 0.1rem 0.25rem;
    width: 100%;
    box-sizing: border-box;
    background: #fff;
    color: var(--i2d-grey-700, #374151);
    outline-offset: 1px;
}

/* ===== Data Tables (PSD + Rheology) ===== */
.psd-table,
.rheology-table__grid {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    font-size: 0.875rem;
}

.psd-table th,
.rheology-table__grid th {
    text-align: left;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--i2d-grey-600);
    padding: 0.5rem 0.625rem;
    border-bottom: 2px solid var(--i2d-grey-300);
    background-color: var(--i2d-grey-50);
}

.psd-table td,
.rheology-table__grid td {
    padding: 0.375rem 0.625rem;
    border-bottom: 1px solid var(--i2d-grey-200);
    vertical-align: middle;
}

/* Rheology row-number column — narrow fixed width (just holds 1, 2, 3…) */
.rheology-table__grid th:first-child,
.rheology-table__grid td:first-child {
    width: 3.5rem;
    text-align: center;
}

/* PSD percentile column — wider so the "Percentile" header fits (#58) */
.psd-table th:first-child,
.psd-table td:first-child {
    width: 6rem;
    text-align: center;
}

/* Inputs inside table cells fill available width */
.psd-table .form-field__input,
.rheology-table__grid .form-field__input {
    max-width: none;
    width: 100%;
}

/* ===== Rheology Table Container ===== */
.rheology-table {
    grid-column: 1 / -1;
    margin-top: 0.5rem;
}

.rheology-table__controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.5rem;
}

/* Rheology buttons — match toolbar button style */
.rheology-table__btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--i2d-grey-800);
    background-color: #ffffff;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 0;
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s;
}

.rheology-table__btn:hover {
    background-color: var(--i2d-grey-100);
    border-color: var(--i2d-grey-400);
}

.rheology-table__btn:active {
    background-color: var(--i2d-grey-200);
}

.rheology-table__btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.rheology-table__btn:disabled:hover {
    background-color: #ffffff;
    border-color: var(--i2d-grey-300);
}

.rheology-table__btn--add {
    color: #ffffff;
    background-color: var(--i2d-primary);
    border-color: var(--i2d-primary);
}

.rheology-table__btn--add:hover {
    background-color: var(--i2d-primary-dark);
    border-color: var(--i2d-primary-dark);
}

.rheology-table__btn--add:active {
    background-color: var(--i2d-primary-deeper);
}

.rheology-table__btn--add:disabled {
    background-color: var(--i2d-primary);
    border-color: var(--i2d-primary);
}

.rheology-table__btn--remove {
    color: var(--i2d-error);
    border-color: var(--i2d-error-border);
}

.rheology-table__btn--remove:hover {
    background-color: var(--i2d-error-bg);
    border-color: var(--i2d-error);
}

.rheology-table__btn--remove:active {
    background-color: var(--i2d-error-bg);
}

.rheology-table__btn--remove:disabled {
    color: var(--i2d-error);
    border-color: var(--i2d-error-border);
}

.rheology-table__count {
    margin-left: auto;
    font-size: 0.8125rem;
    color: var(--i2d-grey-500);
    font-weight: 400;
}

/* CSV import/export controls */
.rheology-table__csv-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.375rem;
}

.rheology-table__btn--csv {
    color: var(--i2d-primary);
    border-color: var(--i2d-primary);
}

.rheology-table__btn--csv:hover {
    background-color: var(--i2d-primary);
    color: #ffffff;
    border-color: var(--i2d-primary);
}

.rheology-table__btn--csv:active {
    background-color: var(--i2d-primary-dark);
    border-color: var(--i2d-primary-dark);
}

.rheology-table__file-input-hidden {
    display: none;
}

/* PSD table also spans full grid width */
#psd-section {
    grid-column: 1 / -1;
}

/* Rheology table container spans full grid width */
#rheology-table-container {
    grid-column: 1 / -1;
}

/* ===== Toolbar Button States ===== */
.toolbar__btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.toolbar__btn:disabled:hover {
    background-color: #ffffff;
    border-color: var(--i2d-grey-300);
}

.toolbar__btn--primary:disabled:hover {
    background-color: var(--i2d-primary);
    border-color: var(--i2d-primary);
}

.toolbar__btn--loading {
    position: relative;
}

/* ===== Toolbar Notification Toast ===== */
.toolbar-notification {
    position: fixed;
    top: 4rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.8125rem;
    font-weight: 500;
    z-index: 1000;
    transform: translateX(calc(100% + 1rem));
    transition: transform 0.3s ease;
    pointer-events: none;
    background-color: var(--i2d-grey-600);
    color: #ffffff;
}

.toolbar-notification--visible {
    transform: translateX(0);
    pointer-events: auto;
}

.toolbar-notification--success {
    background-color: var(--i2d-success);
    color: #ffffff;
}

.toolbar-notification--error {
    background-color: var(--i2d-error);
    color: #ffffff;
}

.toolbar-notification--info {
    background-color: var(--i2d-grey-600);
    color: #ffffff;
}

/* ===== Modal Dialog (Save As, etc.) ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-dialog {
    background-color: #ffffff;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 8px;
    padding: 1.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.modal-dialog__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--i2d-primary-deeper);
    margin-bottom: 0.5rem;
}

.modal-dialog__description {
    font-size: 0.875rem;
    color: var(--i2d-grey-500);
    margin-bottom: 1.25rem;
}

.modal-dialog__field {
    margin-bottom: 1.25rem;
}

.modal-dialog__input {
    max-width: none;
    width: 100%;
}

.modal-dialog__actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

.modal-dialog--wide {
    max-width: 680px;
    max-height: 85vh;
    overflow-y: auto;
}

.modal-dialog__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.modal-dialog__header .modal-dialog__title {
    margin-bottom: 0;
}

.modal-dialog__close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--i2d-grey-500);
    padding: 0 0.25rem;
    line-height: 1;
}

.modal-dialog__close:hover {
    color: var(--i2d-grey-700);
}

/* ===== Regression trigger button — compact [...] inline with legend ===== */
.regression-trigger-btn {
    display: inline-block;
    font-family: monospace;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 0.0625rem 0.375rem;
    margin-left: var(--sp-4);
    line-height: 1.3;
    color: var(--i2d-primary);
    background-color: transparent;
    border: 1px solid var(--i2d-primary);
    border-radius: 3px;
    cursor: pointer;
    vertical-align: middle;
    transition: background-color 0.15s, color 0.15s;
}

.regression-trigger-btn:hover {
    background-color: var(--i2d-primary);
    color: #ffffff;
}

/* Form-group title with inline action */
.form-group__title--with-action {
    display: flex;
    align-items: center;
}

.form-group__title-text {
    /* Title text stays as-is */
}

/* ===== Regression Modal ===== */
.regression-modal__description {
    font-size: var(--text-sm);
    color: var(--i2d-grey-500);
    margin-bottom: var(--sp-8);
    line-height: 1.5;
}

.regression-modal__form {
    display: flex;
    flex-direction: column;
    gap: var(--sp-6);
}

.regression-modal__form-row {
    display: flex;
    align-items: center;
    gap: var(--sp-8);
}

.regression-modal__form-row .form-field__label {
    min-width: 7rem;
    margin-bottom: 0;
    flex-shrink: 0;
}

.regression-modal__input {
    max-width: 200px;
}

.regression-modal__file-wrapper {
    flex: 1;
}

.regression-modal__file-input {
    max-width: none;
    font-size: var(--text-sm);
}

.regression-modal__form-actions {
    padding-top: var(--sp-4);
}

.regression-modal__submit-btn {
    /* Inherits from toolbar__btn--primary */
}

.regression-modal__loading {
    padding: var(--sp-8) 0;
    color: var(--i2d-grey-500);
    font-style: italic;
    font-size: var(--text-sm);
}

.regression-modal__error {
    color: var(--i2d-error);
    font-size: var(--text-sm);
    padding: var(--sp-4) 0;
}

/* Results area */
.regression-modal__results {
    margin-top: var(--sp-8);
}

.regression-modal__stat {
    display: flex;
    align-items: baseline;
    gap: var(--sp-4);
    padding: var(--sp-4) var(--sp-6);
    background-color: var(--i2d-success-bg);
    border: 1px solid var(--i2d-success);
    border-radius: 4px;
    margin-bottom: var(--sp-6);
}

.regression-modal__stat-label {
    font-weight: 700;
    font-size: var(--text-md);
    color: var(--i2d-grey-700);
}

.regression-modal__stat-value {
    font-family: var(--font-mono);
    font-size: var(--text-md);
    color: var(--i2d-grey-800);
}

.regression-modal__coefficients {
    margin-bottom: var(--sp-6);
}

.regression-modal__equation {
    font-size: var(--text-sm);
    color: var(--i2d-grey-500);
    margin-bottom: var(--sp-3);
    font-style: italic;
}

.regression-modal__coeff-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--sp-1) var(--sp-6);
    font-size: var(--text-sm);
}

.regression-modal__coeff-label {
    font-weight: 600;
    color: var(--i2d-grey-600);
}

.regression-modal__coeff-value {
    font-family: var(--font-mono);
    color: var(--i2d-grey-800);
}

/* Chart image */
.regression-modal__chart {
    margin-bottom: var(--sp-6);
}

.regression-modal__chart-img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--i2d-grey-200);
    border-radius: 4px;
}

/* Data table */
.regression-modal__table-wrapper {
    max-height: 240px;
    overflow-y: auto;
    margin-bottom: var(--sp-6);
    border: 1px solid var(--i2d-grey-200);
    border-radius: 4px;
}

.regression-modal__table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.regression-modal__table thead th {
    position: sticky;
    top: 0;
    text-align: right;
    font-weight: 600;
    color: var(--i2d-grey-600);
    padding: var(--sp-3) var(--sp-4);
    background-color: var(--i2d-grey-50);
    border-bottom: 2px solid var(--i2d-grey-300);
}

.regression-modal__table thead th:first-child {
    text-align: left;
}

.regression-modal__table tbody td {
    text-align: right;
    padding: var(--sp-2) var(--sp-4);
    border-bottom: 1px solid var(--i2d-grey-200);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

.regression-modal__table tbody td:first-child {
    text-align: left;
}

.regression-modal__table tbody tr:hover {
    background-color: var(--i2d-grey-50);
}

/* Apply button area */
.regression-modal__apply-actions {
    padding-top: var(--sp-4);
    border-top: 1px solid var(--i2d-grey-200);
    display: flex;
    justify-content: flex-end;
}

/* ===== Utility ===== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ===== Admin Dashboard ===== */
.admin-dashboard {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.admin-card {
    background-color: #ffffff;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.admin-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background-color: var(--i2d-grey-50);
    border-bottom: 1px solid var(--i2d-grey-200);
}

.admin-card__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--i2d-primary-deeper);
    margin: 0;
}

/* ===== Admin System Information ===== */
.admin-system-info {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.5rem 1.5rem;
    padding: 1rem 1.5rem 1.25rem;
    margin: 0;
    font-size: 0.875rem;
}

.admin-system-info dt {
    font-weight: 600;
    color: var(--i2d-grey-600);
}

.admin-system-info dd {
    margin: 0;
    color: var(--i2d-grey-800, #1f2937);
}

.admin-system-info__muted {
    color: var(--i2d-grey-500);
    font-weight: 400;
    margin-left: 0.25rem;
}

/* ===== Admin Tables ===== */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.admin-table thead th {
    text-align: left;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--i2d-grey-600);
    padding: 0.75rem 1rem;
    border-bottom: 2px solid var(--i2d-grey-300);
    background-color: var(--i2d-grey-50);
    white-space: nowrap;
}

.admin-table tbody td {
    padding: 0.625rem 1rem;
    border-bottom: 1px solid var(--i2d-grey-200);
    vertical-align: middle;
    color: var(--i2d-grey-800);
}

.admin-table tbody tr:last-child td {
    border-bottom: none;
}

.admin-table tbody tr:hover {
    background-color: var(--i2d-grey-50);
}

.admin-table__row--disabled {
    opacity: 0.6;
    background-color: var(--i2d-grey-50);
}

.admin-table__row--disabled:hover {
    background-color: var(--i2d-grey-50);
}

.admin-table__empty {
    text-align: center;
    color: var(--i2d-grey-400);
    padding: 2rem 1rem !important;
    font-style: italic;
}

.admin-table__actions {
    display: flex;
    gap: 0.375rem;
    align-items: center;
    white-space: nowrap;
}

/* ===== Admin Badges ===== */
.badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 10px;
    background-color: var(--i2d-grey-200);
    color: var(--i2d-grey-600);
}

.badge--admin {
    background-color: #dbeafe;
    color: #1e40af;
}

.badge--active {
    background-color: var(--i2d-success-bg);
    color: var(--i2d-success);
}

.badge--inactive,
.badge--disabled {
    background-color: var(--i2d-error-bg);
    color: var(--i2d-error);
}

.badge--warning {
    background-color: var(--i2d-warning-bg);
    color: var(--i2d-warning);
}

/* ===== Admin Code / Muted Text ===== */
.admin-code {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    padding: 0.125rem 0.375rem;
    background-color: var(--i2d-grey-50);
    border: 1px solid var(--i2d-grey-200);
    border-radius: 3px;
    color: var(--i2d-grey-600);
}

.admin-text--muted {
    color: var(--i2d-grey-400);
    font-style: italic;
}

/* ===== Small Toolbar Buttons (for table actions) ===== */
.toolbar__btn--small {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.toolbar__btn--danger {
    color: var(--i2d-error);
    border-color: var(--i2d-error-border);
}

.toolbar__btn--danger:hover {
    background-color: var(--i2d-error-bg);
    border-color: var(--i2d-error);
    color: var(--i2d-error);
}

.toolbar__btn--danger:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.toolbar__btn--danger:disabled:hover {
    background-color: #ffffff;
    border-color: var(--i2d-error-border);
    color: var(--i2d-error);
}

.toolbar__btn--warning {
    color: var(--i2d-warning);
    border-color: var(--i2d-warning-border);
}

.toolbar__btn--warning:hover {
    background-color: var(--i2d-warning-bg);
    border-color: var(--i2d-warning);
    color: var(--i2d-warning);
}

.toolbar__btn--success {
    color: var(--i2d-success);
    border-color: var(--i2d-success);
}

.toolbar__btn--success:hover {
    background-color: var(--i2d-success-bg);
    border-color: var(--i2d-success);
    color: var(--i2d-success);
}

/* ===== Admin Form ===== */
.admin-form {
    max-width: 560px;
    margin: 0 auto;
    background-color: #ffffff;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 8px;
    padding: 2rem 2.5rem;
    box-shadow: var(--shadow-md);
}

.admin-form__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--i2d-primary-deeper);
    margin-bottom: 1.5rem;
}

.admin-form__input--wide {
    max-width: none;
    width: 100%;
}

.admin-form__actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--i2d-grey-200);
}

.admin-form__message {
    padding: 0.625rem 1rem;
    border-radius: 4px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.admin-form__message--success {
    background-color: var(--i2d-success-bg);
    border: 1px solid var(--i2d-success);
    color: var(--i2d-success);
}

.admin-form__message--error {
    background-color: var(--i2d-error-bg);
    border: 1px solid var(--i2d-error-border);
    color: var(--i2d-error);
}

/* ===== Settings Page ===== */
.settings-page {
    max-width: 600px;
    margin: 0 auto;
}

.settings-page__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--i2d-primary-deeper);
    margin-bottom: 1.5rem;
}

.settings-section {
    background-color: #ffffff;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 8px;
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.settings-section__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--i2d-primary-deeper);
    margin-bottom: 0.25rem;
}

.settings-section__description {
    font-size: 0.875rem;
    color: var(--i2d-grey-500);
    margin-bottom: 1.25rem;
}

.settings-form__input {
    max-width: none;
    width: 100%;
}

.settings-form__actions {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--i2d-grey-200);
}

/* ===== About Page ===== */
.about-page {
    max-width: 600px;
    margin: 0 auto;
}

.about-page__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--i2d-primary-deeper);
    margin-bottom: 1.5rem;
}

.about-page__card {
    background-color: #ffffff;
    border: 1px solid var(--i2d-grey-300);
    border-radius: 8px;
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.about-page__card-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--i2d-primary-deeper);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--i2d-grey-200);
}

.about-page__details {
    display: grid;
    grid-template-columns: 10rem 1fr;
    gap: 0.625rem 1rem;
    font-size: 0.875rem;
}

.about-page__details dt {
    font-weight: 600;
    color: var(--i2d-grey-600);
}

.about-page__details dd {
    color: var(--i2d-grey-800);
    margin: 0;
}

.about-page__details dd a {
    color: var(--i2d-primary);
    text-decoration: none;
}

.about-page__details dd a:hover {
    text-decoration: underline;
    color: var(--i2d-primary-dark);
}

/* ===== Results Tab ===== */
.results-tab__actions {
    margin-bottom: 1rem;
}

.results-tab__error {
    padding: var(--sp-4, 1rem);
    border: 1px solid var(--i2d-red-300, #fca5a5);
    border-radius: var(--i2d-radius, 4px);
    background-color: var(--i2d-red-50, #fef2f2);
    margin-top: var(--sp-4, 1rem);
}

.results-tab__error-message {
    color: var(--i2d-red-700, #b91c1c);
    margin: 0;
    font-size: 0.9rem;
}

.results-grid {
    display: flex;
    flex-direction: column;
    gap: var(--sp-6, 1.5rem);
}

.results-grid__item {
    border: 1px solid var(--i2d-grey-200, #e5e7eb);
    border-radius: var(--i2d-radius, 4px);
    overflow: hidden;
}

.results-grid__title {
    margin: 0;
    padding: var(--sp-2, 0.5rem) var(--sp-4, 1rem);
    font-size: 0.875rem;
    font-weight: 600;
    background-color: var(--i2d-grey-50, #f8f9fa);
    border-bottom: 1px solid var(--i2d-grey-200, #e5e7eb);
    text-transform: capitalize;
}

.results-grid__image {
    display: block;
    max-width: 100%;
    height: auto;
}

/* ===== Results CSV Tables ===== */
.results-csv {
    display: flex;
    flex-direction: column;
    gap: var(--sp-4, 1rem);
    margin-bottom: var(--sp-6, 1.5rem);
}

.results-csv__section {
    border: 1px solid var(--i2d-grey-200);
    border-radius: var(--i2d-radius, 4px);
    overflow: hidden;
}

.results-csv__title {
    margin: 0;
    padding: var(--sp-2, 0.5rem) var(--sp-4, 1rem);
    font-size: 0.875rem;
    font-weight: 600;
    background-color: var(--i2d-grey-50);
    border-bottom: 1px solid var(--i2d-grey-200);
}

.results-csv__table-wrapper {
    overflow-x: auto;
}

.results-csv__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.results-csv__table thead th {
    text-align: left;
    padding: var(--sp-2, 0.5rem) var(--sp-4, 1rem);
    background-color: var(--i2d-grey-50);
    border-bottom: 1px solid var(--i2d-grey-200);
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--i2d-grey-700);
    white-space: nowrap;
}

.results-csv__table tbody td {
    padding: var(--sp-2, 0.5rem) var(--sp-4, 1rem);
    border-bottom: 1px solid var(--i2d-grey-100);
    color: var(--i2d-grey-800);
}

.results-csv__table tbody tr:last-child td {
    border-bottom: none;
}

.results-csv__table tbody tr:hover {
    background-color: var(--i2d-grey-50);
}

/* ===== Pump Form Header (per-pump buttons) ===== */
.pump-form__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sp-4);
}

.pump-form__actions {
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.pump-form__btn {
    font-size: 0.75rem;
    padding: 0.1875rem 0.5rem;
}

/* ===== Per-pump tab layout ===== */

.pump-tab__count-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--sp-4);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--i2d-grey-200);
}

.pump-tab__count-input {
    width: 4rem;
    text-align: center;
}

/* ===== Pipeline schematic diagram ===== */

.pipeline-tab__schematic {
    margin-bottom: var(--i2d-spacing-lg, 1rem);
    text-align: center;
}

.pipeline-tab__schematic-img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--i2d-grey-200, #e5e7eb);
    border-radius: var(--i2d-radius, 4px);
}

/* Disabled conditional sections (#351): greyed out when toggle is unchecked */
.pipeline-tab__nozzle-fields--disabled,
.pipeline-tab__uwp-fields--disabled,
.pipeline-tab__rainbow-fields--disabled {
    opacity: 0.45;
    pointer-events: none;
}

.pipeline-tab__nozzle-fields--disabled .form-field__input,
.pipeline-tab__uwp-fields--disabled .form-field__input,
.pipeline-tab__rainbow-fields--disabled .form-field__input {
    background-color: var(--i2d-grey-100, #f3f4f6);
    color: var(--i2d-grey-500, #6b7280);
    cursor: not-allowed;
}

/* ===== Contextual Help Icon (#317) ===== */
.help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.125rem;
    height: 1.125rem;
    margin-left: 0.375rem;
    border-radius: 50%;
    background-color: var(--i2d-primary);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 700;
    font-style: normal;
    text-decoration: none;
    line-height: 1;
    vertical-align: middle;
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.help-icon:hover {
    background-color: var(--i2d-primary-dark);
    text-decoration: none;
    color: #fff;
}

.help-icon:focus-visible {
    outline: 2px solid var(--i2d-primary);
    outline-offset: 2px;
}

/* ===== Validation Errors Banner (#402) ===== */
/* Persistent banner above #tab-content — not destroyed by HTMX tab swaps */
.validation-errors-banner {
    margin: 0 var(--sp-8) var(--sp-4);
}

/* ===== Validation Errors Panel (#352) ===== */
.validation-errors {
    padding: var(--sp-6, 1.5rem);
    background-color: #fff5f5;
    border: 1px solid var(--i2d-error, #c0392b);
    border-radius: 6px;
}

.validation-errors__title {
    margin: 0 0 var(--sp-4, 1rem);
    font-size: 1rem;
    font-weight: 600;
    color: var(--i2d-error, #c0392b);
}

.validation-errors__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.validation-errors__item {
    display: flex;
    gap: var(--sp-3, 0.75rem);
    padding: var(--sp-2, 0.5rem) 0;
    border-bottom: 1px solid var(--i2d-grey-100, #f3f4f6);
    font-size: 0.875rem;
}

.validation-errors__item:last-child {
    border-bottom: none;
}

.validation-errors__field {
    flex: 0 0 auto;
    min-width: 12rem;
    font-weight: 600;
    color: var(--i2d-grey-700, #374151);
}

.validation-errors__message {
    flex: 1 1 auto;
    color: var(--i2d-error, #c0392b);
}

.validation-errors__item--warning .validation-errors__message {
    color: var(--i2d-warning, #e67e22);
}

.validation-errors--warning {
    background-color: #fffbeb;
    border-color: var(--i2d-warning, #e67e22);
}

.validation-errors--warning .validation-errors__title {
    color: var(--i2d-warning, #e67e22);
}

.validation-errors__description {
    margin: 0 0 var(--sp-4, 1rem);
    font-size: 0.875rem;
    color: var(--i2d-grey-700, #374151);
}

/* #565 Part A — staged-validation hint shown when field-level errors are present. */
.validation-errors__hint {
    margin: 0 0 var(--sp-3, 0.75rem);
    font-size: 0.875rem;
    font-style: italic;
    color: var(--i2d-grey-700, #374151);
}

.validation-errors__actions {
    display: flex;
    gap: var(--sp-3, 0.75rem);
    margin-top: var(--sp-4, 1rem);
}

/* ===== Responsive Layout — 1280px and below ===== */
@media (max-width: 1280px) {
    .app-main {
        padding: 1rem;
    }

    .toolbar {
        padding: 0.375rem 1rem;
    }

    .app-header {
        padding: 0.5rem 1rem;
    }

    .dashboard__sidebar {
        width: 200px;
        min-width: 200px;
    }
}

/* ===== Responsive Layout — 1024px and below ===== */
@media (max-width: 1024px) {
    .app-main {
        padding: 0.75rem;
    }

    .toolbar {
        padding: 0.375rem 0.75rem;
        gap: 0.25rem;
    }

    .toolbar__group + .toolbar__group {
        margin-left: 0.25rem;
        padding-left: 0.5rem;
    }

    .app-header {
        padding: 0.5rem 0.75rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .app-header__nav {
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .dashboard__sidebar {
        width: 180px;
        min-width: 180px;
    }

    .dashboard__content {
        padding: var(--sp-6);
    }

    .form-group__fields {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
}

/* =====================================================================
 * Licence-expired banner — issue #569
 * ===================================================================== */

.licence-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.625rem 1rem;
    background-color: #fef3c7; /* amber-100 — warning, not error */
    color: #78350f;            /* amber-900 */
    border-bottom: 1px solid #f59e0b; /* amber-500 */
    font-size: 0.95rem;
    line-height: 1.4;
}

.licence-banner__text {
    flex: 1 1 auto;
}

.licence-banner__close {
    flex: 0 0 auto;
    background: transparent;
    border: 0;
    font-size: 1.25rem;
    line-height: 1;
    color: inherit;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

.licence-banner__close:hover {
    background-color: rgba(0, 0, 0, 0.08);
}

/* =====================================================================
 * Settings page — read-only Licence section (issue #571)
 * Reuses the amber-100 palette from .licence-banner for the past-expiry
 * row so the Settings copy and the global banner read as one system.
 * ===================================================================== */

.settings-licence__row {
    margin: 0;
    padding: 0.5rem 0;
    font-size: 0.95rem;
    line-height: 1.4;
}

.settings-licence__row--future,
.settings-licence__row--none {
    color: #374151; /* slate-700 — quiet, informational */
}

.settings-licence__row--near {
    color: #78350f;            /* amber-900 — same family as banner */
}

.settings-licence__row--expired {
    color: #78350f;            /* amber-900 — matches .licence-banner */
    background-color: #fef3c7; /* amber-100 — matches .licence-banner */
    border-left: 3px solid #f59e0b; /* amber-500 — matches banner border */
    padding: 0.625rem 0.75rem;
    border-radius: 0.25rem;
    font-weight: 500;
}