@import url("https://fonts.googleapis.com/css2?family=Red+Hat+Display:ital,wght@0,300..900;1,300..900&display=swap");

/*
 * Design system derived from the Tabella reference.
 * Flat surfaces, warm greys, a single lime accent. No gradients, no glass.
 */

:root {
    --color-text-primary: #29303d;
    --color-text-secondary: rgba(0, 0, 0, 0.4);
    --color-text-muted: rgba(41, 48, 61, 0.62);
    --color-white: #ffffff;
    --color-accent: #e6fb2d;
    --color-accent-dark: #d9ee1c;
    --color-accent-green: #e3ef7a;
    --background-dark: #2d2d2d;
    --background-surface: #ecebe8;
    --background-surface-dark: #434343;
    --background-surface-dark-100: #2c2c2c;
    --background-surface-dp: #f8f8f8;
    --background-surface-grey: #e4e4e0;
    --stroke-surface: #f5f5fa;
    --color-error: #c05a5a;

    --font-primary: "Red Hat Display", system-ui, -apple-system, "Segoe UI", sans-serif;
    --fz-xs: 0.75rem;
    --fz-sm: 0.875rem;
    --fz-md: 1rem;
    --fz-lg: 1.5rem;
    --fw-400: 400;
    --fw-500: 500;
    --fw-600: 600;

    --radius-pill: 1.875rem;
    --radius-card: 1.5rem;
    --radius-control: 1.25rem;
    --shadow-soft: 0 1px 2px rgba(41, 48, 61, 0.06), 0 10px 30px rgba(41, 48, 61, 0.05);
    --header-height: 4.75rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    background: var(--color-white);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
    overflow-wrap: break-word;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

button,
input,
select,
textarea {
    font: inherit;
}

ul {
    list-style: none;
    padding: 0;
}

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

.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 85rem;
    margin: 0 auto;
    padding: 0 2.5rem;
}

.main {
    flex: 1;
    min-width: 0;
    padding: 2.5rem 0 4rem;
}

.app-body {
    display: flex;
    flex: 1;
    align-items: flex-start;
}

/* Two-pane navigation ----------------------------------------------------- */

.side-nav {
    position: sticky;
    top: var(--header-height);
    z-index: 20;
    display: flex;
    flex: none;
    width: auto;
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
    background: var(--color-white);
    border-right: 1px solid var(--background-surface-grey);
}

.side-nav__rail {
    display: flex;
    flex: none;
    flex-direction: column;
    gap: 0.15rem;
    width: 12.5rem;
    padding: 1.25rem 0.75rem;
    background: var(--background-surface);
    border-right: 1px solid var(--background-surface-grey);
}

.rail-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    padding: 0 0.35rem 0.75rem;
    border-bottom: 1px solid var(--background-surface-grey);
}

.rail-head__title {
    font-size: var(--fz-xs);
    font-weight: var(--fw-600);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.rail-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.9rem;
    height: 1.9rem;
    flex: none;
    border: 1px solid transparent;
    border-radius: var(--radius-control);
    background: transparent;
    color: var(--color-text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.18s ease, border-color 0.18s ease;
}

.rail-toggle:hover {
    background: var(--background-surface-dp);
    border-color: var(--background-surface-grey);
}

.rail-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.7rem;
    border-radius: var(--radius-control);
    font-size: var(--fz-sm);
    font-weight: var(--fw-500);
    color: var(--color-text-primary);
    transition: background-color 0.18s ease, color 0.18s ease;
}

.rail-link i {
    flex: none;
    font-size: 1.05rem;
    color: var(--color-text-muted);
    transition: color 0.18s ease;
}

.rail-link:hover {
    background: var(--background-surface-dp);
}

.rail-link.is-active {
    background: var(--background-dark);
    color: var(--color-white);
}

.rail-link.is-active i {
    color: var(--color-white);
}

.side-nav__panel {
    flex: none;
    width: 17.5rem;
    min-width: 0;
    padding: 1.35rem 1rem;
    overflow: hidden;
    background: var(--color-white);
    transition: width 0.25s ease, padding 0.25s ease, opacity 0.2s ease;
}

/* The second pane starts collapsed and is opened with the rail toggle. */
.side-nav:not(.is-expanded) .side-nav__panel {
    width: 0;
    padding-left: 0;
    padding-right: 0;
    opacity: 0;
    pointer-events: none;
}

.panel-section {
    display: none;
}

.panel-section.is-active {
    display: block;
}

.panel-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    width: 100%;
    margin-bottom: 0.6rem;
    padding: 0 0.6rem;
    border: 0;
    background: none;
    font: inherit;
    font-size: var(--fz-xs);
    font-weight: var(--fw-600);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-align: left;
    color: var(--color-text-secondary);
    /* The accordion only becomes interactive on small screens. */
    pointer-events: none;
}

.panel-caret {
    display: none;
    font-size: 0.8rem;
}

.panel-links {
    display: block;
}

.panel-link {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.55rem 0.6rem;
    border-radius: var(--radius-control);
    font-size: var(--fz-sm);
    color: var(--color-text-muted);
    transition: background-color 0.18s ease, color 0.18s ease;
}

.panel-link i {
    flex: none;
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.panel-link:hover {
    background: var(--background-surface);
    color: var(--color-text-primary);
}

.panel-link.is-active {
    background: var(--background-surface);
    color: var(--color-text-primary);
    font-weight: var(--fw-600);
}

.panel-link.is-active i {
    color: var(--color-text-primary);
}

.nav-backdrop {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    z-index: 55;
    background: rgba(41, 48, 61, 0.4);
}

.nav-backdrop[hidden] {
    display: none;
}

/* Header ------------------------------------------------------------------ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 70;
    background: var(--color-white);
    border-bottom: 1px solid var(--background-surface-grey);
}

.header-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
    min-height: var(--header-height);
}

.header-menu {
    display: flex;
    flex: 1;
    min-width: 0;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.header-right {
    margin-left: auto;
}

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    flex: none;
    border: 1px solid var(--background-surface-grey);
    border-radius: var(--radius-control);
    background: var(--color-white);
    color: var(--color-text-primary);
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.nav-toggle:hover {
    border-color: var(--background-surface-dark);
    background: var(--background-surface-dp);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: var(--fw-600);
    font-size: var(--fz-md);
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.brand-mark {
    display: inline-block;
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 0.25rem;
    background: var(--color-accent);
    flex: none;
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    flex: none;
    border-radius: 0.5rem;
    background: var(--color-accent);
    color: var(--color-text-primary);
    font-size: 1.05rem;
}

.brand-logo {
    width: 2rem;
    height: 2rem;
    flex: none;
    border-radius: 0.5rem;
    object-fit: cover;
    background: var(--background-surface-dp);
}

.brand-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 14rem;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-wrap: nowrap;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 0.85rem 0.45rem;
    border-radius: var(--radius-control);
    border: 1px solid transparent;
    font-size: var(--fz-sm);
    font-weight: var(--fw-500);
    color: var(--color-text-primary);
    white-space: nowrap;
    transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.nav-link i {
    font-size: 1rem;
    color: var(--color-text-muted);
    transition: color 0.2s ease;
}

.nav-link:hover {
    border-color: var(--color-accent-green);
    background: var(--background-surface-dp);
}

.nav-link:hover i {
    color: var(--color-text-primary);
}

.nav-link.active {
    background: var(--background-dark);
    border-color: var(--background-dark);
    color: var(--color-white);
}

.nav-link.active i {
    color: var(--color-white);
}

.nav-group {
    position: relative;
}

.nav-trigger {
    cursor: pointer;
    font: inherit;
    background: none;
}

.nav-caret {
    font-size: 0.7rem !important;
    margin-left: 0.1rem;
    transition: transform 0.2s ease;
}

.nav-group.is-open .nav-caret {
    transform: rotate(180deg);
}

.nav-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    z-index: 60;
    display: none;
    min-width: 15rem;
    padding: 0.5rem;
    background: var(--color-white);
    border: 1px solid var(--background-surface-grey);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
}

.nav-dropdown--right {
    left: auto;
    right: 0;
}

.nav-group.is-open > .nav-dropdown {
    display: block;
    animation: menu-in 0.18s ease both;
}

.dropdown-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 0;
    border-radius: var(--radius-control);
    background: none;
    color: var(--color-text-primary);
    font-size: var(--fz-sm);
    font-weight: var(--fw-500);
    text-align: left;
    cursor: pointer;
    transition: background-color 0.18s ease, color 0.18s ease;
}

.dropdown-link i {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.dropdown-link:hover {
    background: var(--background-surface);
}

.dropdown-link:hover i {
    color: var(--color-text-primary);
}

.dropdown-header {
    padding: 0.5rem 0.75rem 0.6rem;
    margin-bottom: 0.4rem;
    border-bottom: 1px solid var(--background-surface-grey);
    font-size: var(--fz-xs);
    color: var(--color-text-muted);
    overflow: hidden;
}

.dropdown-header strong {
    display: block;
    color: var(--color-text-primary);
    font-size: var(--fz-sm);
    font-weight: var(--fw-500);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chip--button {
    border: 0;
    cursor: pointer;
    font: inherit;
}

.chip--button:hover {
    background: var(--background-surface-grey);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem 0.3rem;
    border-radius: var(--radius-pill);
    background: var(--background-surface);
    font-size: var(--fz-xs);
    font-weight: var(--fw-500);
    color: var(--color-text-primary);
}

.chip--dark {
    background: var(--background-dark);
    color: var(--color-white);
}

.chip--accent {
    background: var(--color-accent);
    color: var(--color-text-primary);
}

/* Footer ------------------------------------------------------------------ */

.site-footer {
    background: var(--background-surface-dark-100);
    color: var(--color-white);
    border-radius: var(--radius-card) var(--radius-card) 0 0;
    padding: 2.5rem 0 1.75rem;
    margin-top: 2rem;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-note {
    font-size: var(--fz-sm);
    color: var(--color-white);
    opacity: 0.5;
}

/* Buttons ----------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 2.8125rem;
    padding: 0.81rem 1.5rem;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    font-size: var(--fz-sm);
    font-weight: var(--fw-600);
    line-height: 1;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
    background: var(--background-dark);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-accent);
    color: var(--color-text-primary);
}

.btn-primary:active {
    background: var(--color-accent-dark);
}

.btn-secondary {
    background: transparent;
    border-color: var(--background-surface-dark);
    color: var(--color-text-primary);
}

.btn-secondary:hover {
    border-color: #e6ff00;
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-text-primary);
}

.btn-accent:hover {
    background: var(--color-accent-dark);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-primary);
    padding: 0.5rem 0.9rem;
}

.btn-ghost:hover {
    background: var(--background-surface);
    border-radius: var(--radius-pill);
}

.btn-sm {
    min-height: 2.25rem;
    padding: 0.5rem 1rem;
    font-size: var(--fz-xs);
}

.btn[disabled],
.btn.is-disabled {
    opacity: 0.5;
    pointer-events: none;
}

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

.card {
    background: var(--background-surface);
    border-radius: var(--radius-card);
    padding: 1.75rem;
}

.card--white {
    background: var(--color-white);
    border: 1px solid var(--background-surface-grey);
}

.card--dark {
    background: var(--background-surface-dark-100);
    color: var(--color-white);
}

.card--flush {
    padding: 0;
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.card-title {
    font-size: var(--fz-lg);
    font-weight: var(--fw-600);
    line-height: 1.2;
}

.card-subtitle {
    color: var(--color-text-muted);
    font-size: var(--fz-sm);
    margin-top: 0.25rem;
}

.card--dark .card-subtitle {
    color: var(--color-white);
    opacity: 0.6;
}

/* Stats ------------------------------------------------------------------- */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
    gap: 1rem;
}

.stat {
    position: relative;
    display: block;
    background: var(--background-surface);
    border-radius: var(--radius-card);
    padding: 1.5rem;
    color: inherit;
}

.stat-arrow {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 1rem;
    color: var(--color-text-muted);
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

a.stat:hover .stat-arrow,
a.stat:focus-visible .stat-arrow {
    opacity: 1;
    transform: none;
}

.stat-value {
    font-size: 2.25rem;
    font-weight: var(--fw-600);
    line-height: 1.1;
}

.stat-label {
    margin-top: 0.35rem;
    font-size: var(--fz-sm);
    color: var(--color-text-muted);
}

.stat--accent {
    background: var(--color-accent);
}

.stat--accent .stat-label {
    color: var(--color-text-primary);
    opacity: 0.7;
}

.stat--dark {
    background: var(--background-surface-dark-100);
    color: var(--color-white);
}

.stat--dark .stat-label {
    color: var(--color-white);
    opacity: 0.6;
}

/* Page headings ----------------------------------------------------------- */

.page-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.75rem;
}

.page-title {
    font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2.25rem);
    font-weight: var(--fw-500);
    line-height: 1.15;
    letter-spacing: -0.01em;
}

.page-lead {
    color: var(--color-text-muted);
    margin-top: 0.5rem;
    max-width: 48rem;
}

.section {
    margin-top: 2.5rem;
}

.section-title {
    font-size: var(--fz-md);
    font-weight: var(--fw-600);
    margin-bottom: 1rem;
}

.eyebrow {
    font-size: var(--fz-sm);
    font-weight: var(--fw-600);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
}

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

.text-sm {
    font-size: var(--fz-sm);
}

/* Tables ------------------------------------------------------------------ */

.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-card);
    background: var(--color-white);
    border: 1px solid var(--background-surface-grey);
}

table.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--fz-sm);
}

table.table th {
    text-align: left;
    padding: 0.85rem 1.25rem;
    background: var(--background-surface);
    color: var(--color-text-secondary);
    font-weight: var(--fw-600);
    white-space: nowrap;
}

table.table td {
    padding: 0.9rem 1.25rem;
    border-top: 1px solid var(--background-surface-grey);
    vertical-align: middle;
}

table.table tbody tr:hover {
    background: var(--background-surface-dp);
}

table.table td.numeric,
table.table th.numeric {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.table-actions {
    display: flex;
    gap: 0.4rem;
    justify-content: flex-end;
}

.empty-state {
    padding: 2.5rem 1.5rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--fz-sm);
}

/* Badges ------------------------------------------------------------------ */

.badge {
    display: inline-block;
    padding: 0.3rem 0.7rem 0.25rem;
    border-radius: var(--radius-pill);
    font-size: var(--fz-xs);
    font-weight: var(--fw-600);
    line-height: 1;
}

.badge--neutral {
    background: var(--background-surface-grey);
    color: var(--color-text-primary);
}

.badge--present,
.badge--active {
    background: var(--color-accent-green);
    color: var(--color-text-primary);
}

.badge--absent {
    background: var(--color-error);
    color: var(--color-white);
}

.badge--late {
    background: var(--color-accent);
    color: var(--color-text-primary);
}

.badge--excused {
    background: var(--background-surface-dark);
    color: var(--color-white);
}

.badge--warning {
    background: var(--color-accent);
    color: var(--color-text-primary);
}

.badge--suspension {
    background: var(--color-error);
    color: var(--color-white);
}

.badge--expulsion {
    background: var(--background-surface-dark-100);
    color: var(--color-white);
}

/* Forms ------------------------------------------------------------------- */

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    align-items: start;
    gap: 1.25rem;
}

/* A text area needs the full width and should not stretch to a neighbour's height. */
.form-grid .form-field:has(textarea) {
    grid-column: 1 / -1;
}

.form-field {
    display: flex;
    flex-direction: column;
}

.form-field--full {
    grid-column: 1 / -1;
}

.form-field label {
    margin-bottom: 0.5rem;
    font-size: var(--fz-sm);
    color: var(--color-text-secondary);
    font-weight: var(--fw-500);
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 0.91rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    background: var(--background-surface-dp);
    color: var(--color-text-primary);
    font-weight: var(--fw-500);
    transition: border-color 0.2s ease;
}

.form-field textarea {
    border-radius: var(--radius-card);
    min-height: 9rem;
    line-height: 1.6;
    resize: vertical;
}

.form-field input:focus-visible,
.form-field select:focus-visible,
.form-field textarea:focus-visible {
    outline: none;
    border-color: var(--color-accent);
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
    border-color: var(--color-accent);
}

.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea {
    border-color: var(--color-error);
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.help-text {
    margin-top: 0.4rem;
    font-size: var(--fz-xs);
    color: var(--color-text-muted);
}

.errorlist {
    margin-top: 0.4rem;
    font-size: var(--fz-xs);
    color: var(--color-error);
}

.errorlist li {
    margin: 0;
}

/* Alerts ------------------------------------------------------------------ */

.messages {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.alert {
    padding: 0.9rem 1.25rem;
    border-radius: var(--radius-card);
    font-size: var(--fz-sm);
    background: var(--background-surface);
}

.alert-success {
    background: var(--color-accent-green);
}

.alert-error,
.alert-danger {
    background: var(--color-error);
    color: var(--color-white);
}

.alert-warning {
    background: var(--color-accent);
}

/* Auth -------------------------------------------------------------------- */

.auth-shell {
    display: flex;
    justify-content: center;
    padding: 2rem 0 4rem;
}

.auth-card {
    width: 100%;
    max-width: 30rem;
    background: var(--background-surface);
    border-radius: var(--radius-card);
    padding: 2.5rem;
}

.auth-card .card-title {
    font-size: 1.75rem;
}

.auth-form {
    margin-top: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.auth-foot {
    margin-top: 1.5rem;
    font-size: var(--fz-sm);
    color: var(--color-text-muted);
}

/* Hero -------------------------------------------------------------------- */

.hero {
    padding: 3rem 0 2rem;
    max-width: 54rem;
}

.hero .title-h1 {
    font-size: clamp(2rem, 1.2rem + 3.2vw, 3.5rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero-lead {
    margin-top: 1.25rem;
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 42rem;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.feature-card h3 {
    font-size: var(--fz-md);
    font-weight: var(--fw-600);
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: var(--fz-sm);
    color: var(--color-text-muted);
}

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

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
    gap: 1.5rem;
    align-items: start;
}

.stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.spacer {
    flex: 1;
}

.inline-form {
    display: inline;
}

.progress {
    height: 0.5rem;
    border-radius: var(--radius-pill);
    background: var(--background-surface-grey);
    overflow: hidden;
}

.progress span {
    display: block;
    height: 100%;
    background: var(--color-accent);
}

.tabs {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.form-field--check .check-label {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.9rem;
    color: var(--color-text-primary);
    font-weight: var(--fw-500);
}

.form-field--check input[type="checkbox"] {
    width: 1.15rem;
    height: 1.15rem;
    accent-color: var(--background-dark);
}

.search-bar {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    max-width: 34rem;
}

.search-bar .form-field {
    flex: 1;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.filter-bar .form-field {
    min-width: 11rem;
}

.pagination {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

/* Motion ------------------------------------------------------------------ */

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

@keyframes menu-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

.main > .container {
    animation: fade-in 0.25s ease both;
}

/* Scroll reveal ---------------------------------------------------------- */

.reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: calc(var(--reveal-index, 0) * 55ms);
}

.reveal--in {
    opacity: 1;
    transform: none;
}

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

html {
    scroll-behavior: smooth;
}

.site-header.is-scrolled {
    box-shadow: 0 8px 24px rgba(41, 48, 61, 0.08);
}

.back-row {
    margin-bottom: 0.75rem;
}

.back-row .btn {
    padding-left: 0.5rem;
}

.card,
.stat,
.feature-card,
.btn,
.nav-link,
.chip,
.badge,
table.table tbody tr {
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease,
        transform 0.18s ease, box-shadow 0.18s ease;
}

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

.stat:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.btn:active {
    transform: translateY(1px);
}

.alert {
    animation: fade-up 0.25s ease both;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--background-dark);
    outline-offset: 2px;
}

/* Icons and small components --------------------------------------------- */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.btn i {
    font-size: 1rem;
    line-height: 1;
}

.card-title i,
.section-title i {
    margin-right: 0.4rem;
    color: var(--color-text-muted);
}

.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    margin-bottom: 0.75rem;
    border-radius: var(--radius-control);
    background: rgba(41, 48, 61, 0.08);
    font-size: 1.1rem;
}

.stat--dark .stat-icon,
.stat--accent .stat-icon {
    background: rgba(41, 48, 61, 0.12);
}

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    margin-bottom: 0.9rem;
    border-radius: var(--radius-control);
    background: var(--color-white);
    font-size: 1.2rem;
    color: var(--color-text-primary);
}

.empty-state i {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
    color: var(--color-text-secondary);
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.row i {
    color: var(--color-text-muted);
}

.announcement .announcement-body {
    margin: 0;
    white-space: pre-line;
}

.announcement .card-header {
    margin-bottom: 0.75rem;
}

.announcement .card-subtitle .badge {
    margin-right: 0.35rem;
}

/* Announcements ----------------------------------------------------------- */

.announcement {
    position: relative;
    padding: 1.5rem 1.75rem;
    background: var(--color-white);
    border: 1px solid var(--background-surface-grey);
    border-radius: var(--radius-card);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.announcement:hover {
    box-shadow: var(--shadow-soft);
}

.announcement::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1.5rem;
    bottom: 1.5rem;
    width: 4px;
    border-radius: 0 4px 4px 0;
    background: var(--background-surface-grey);
}

.announcement--pinned::before {
    background: var(--color-accent);
}

.announcement-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.15rem;
    font-weight: var(--fw-600);
    line-height: 1.3;
}

.announcement-title i {
    color: var(--color-accent-dark);
    font-size: 1rem;
}

.announcement-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem 0.9rem;
    margin-top: 0.6rem;
    font-size: var(--fz-sm);
    color: var(--color-text-muted);
}

.announcement-meta .meta {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.announcement-body {
    margin: 1rem 0 0;
    line-height: 1.7;
    max-width: 68ch;
    white-space: pre-line;
}

.announcement-expiry {
    margin: 0.85rem 0 0;
    font-size: var(--fz-sm);
    color: var(--color-text-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.announcement-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.25rem;
    padding-top: 1.1rem;
    border-top: 1px solid var(--background-surface-grey);
}

.badge--everyone {
    background: var(--color-accent);
    color: var(--color-text-primary);
}

.badge--teachers {
    background: var(--background-surface-dark);
    color: var(--color-white);
}

.badge--students {
    background: var(--color-accent-green);
    color: var(--color-text-primary);
}

.detail-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.6rem 1.5rem;
    font-size: var(--fz-sm);
}

.detail-list dt {
    color: var(--color-text-muted);
}

.detail-list dd {
    margin: 0;
    font-weight: var(--fw-500);
}

@media (max-width: 1439px) {
    .header-inner {
        gap: 0.5rem;
    }

    .nav-link {
        padding: 0.5rem 0.6rem 0.45rem;
    }

    .chip {
        padding: 0.3rem 0.65rem 0.25rem;
    }
}

@media (max-width: 1023px) {
    .nav-toggle {
        display: inline-flex;
    }

    .side-nav {
        position: fixed;
        top: var(--header-height);
        bottom: 0;
        left: 0;
        z-index: 60;
        flex-direction: column;
        width: min(22rem, 88vw);
        height: auto;
        border-right: 1px solid var(--background-surface-grey);
        box-shadow: var(--shadow-soft);
        transform: translateX(-102%);
        transition: transform 0.25s ease;
    }

    .side-nav.is-open {
        transform: none;
    }

    .side-nav__rail {
        display: none;
    }

    .side-nav__panel,
    .side-nav:not(.is-expanded) .side-nav__panel {
        width: auto;
        padding: 1.25rem 1rem 2rem;
        opacity: 1;
        pointer-events: auto;
    }

    .panel-section {
        display: block;
        margin-bottom: 1.35rem;
    }

    .panel-title {
        pointer-events: auto;
        cursor: pointer;
        margin-bottom: 0.35rem;
        padding: 0.45rem 0.6rem;
        border-radius: var(--radius-control);
    }

    .panel-title:hover {
        background: var(--background-surface);
    }

    .panel-caret {
        display: inline-block;
        transition: transform 0.2s ease;
    }

    .panel-section.is-open .panel-caret {
        transform: rotate(180deg);
    }

    .panel-section:not(.is-open) .panel-links {
        display: none;
    }

    .header-chip {
        display: none;
    }

    .nav-dropdown {
        min-width: 0;
        width: min(18rem, calc(100vw - 2rem));
    }
}

@media (max-width: 767px) {
    .container {
        padding: 0 1rem;
    }

    .auth-card {
        padding: 1.75rem;
    }

    .page-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .page-head .row,
    .card-header,
    .form-actions {
        flex-wrap: wrap;
    }

    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .stat {
        padding: 1.1rem;
    }

    .stat-value {
        font-size: 1.75rem;
    }

    .filter-bar,
    .search-bar {
        flex-direction: column;
        align-items: stretch;
        max-width: none;
    }

    .filter-bar .form-field,
    .search-bar .form-field {
        min-width: 0;
        width: 100%;
    }

    .pagination {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    table.table th,
    table.table td {
        padding-left: 0.9rem;
        padding-right: 0.9rem;
    }

    /* Tables become cards, one row per card, each cell labelled. */
    .table-wrap--stacked {
        background: transparent;
        border: 0;
        border-radius: 0;
        overflow: visible;
    }

    table.table--stacked thead {
        display: none;
    }

    table.table--stacked,
    table.table--stacked tbody,
    table.table--stacked tr,
    table.table--stacked td {
        display: block;
        width: 100%;
    }

    table.table--stacked tr {
        margin-bottom: 0.75rem;
        background: var(--color-white);
        border: 1px solid var(--background-surface-grey);
        border-radius: var(--radius-card);
        overflow: hidden;
    }

    table.table--stacked tbody tr:hover {
        background: var(--color-white);
    }

    table.table--stacked td {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding: 0.6rem 1rem;
        border-top: 0;
        border-bottom: 1px solid var(--background-surface-grey);
        text-align: right;
    }

    table.table--stacked td:last-child {
        border-bottom: 0;
    }

    table.table--stacked td::before {
        content: attr(data-label);
        flex: 0 0 auto;
        color: var(--color-text-muted);
        font-weight: var(--fw-500);
        text-align: left;
    }

    table.table--stacked td.empty-state {
        display: block;
        padding: 1.5rem 1rem;
        text-align: center;
    }

    table.table--stacked td.empty-state::before {
        content: none;
    }

    table.table--stacked td select,
    table.table--stacked td input,
    table.table--stacked td textarea {
        max-width: 62%;
    }

    .table-actions {
        justify-content: flex-end;
        flex-wrap: wrap;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Footer links ------------------------------------------------------------ */

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
}

.footer-links a {
    font-size: var(--fz-sm);
    color: var(--color-white);
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.footer-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Long-form content (help guides, privacy policy) ------------------------- */

.article {
    max-width: 52rem;
}

.article-section + .article-section {
    margin-top: 1.75rem;
    padding-top: 1.75rem;
    border-top: 1px solid var(--background-surface-grey);
}

.article-section p {
    margin-top: 0.65rem;
    line-height: 1.75;
}

.article-section p:first-of-type {
    margin-top: 0;
}

.bullet-list {
    margin-top: 0.65rem;
    padding-left: 1.15rem;
    list-style: disc;
}

.bullet-list li {
    margin-top: 0.4rem;
    line-height: 1.7;
}

.steps {
    margin-top: 0.75rem;
    padding-left: 1.25rem;
    list-style: decimal;
}

.steps li {
    margin-top: 0.45rem;
    line-height: 1.7;
}

.guide-card {
    display: block;
    color: inherit;
}

/* Support inbox ----------------------------------------------------------- */

.support-message {
    margin-bottom: 1rem;
}

.support-message__body {
    margin: 0;
    line-height: 1.7;
    white-space: pre-line;
}

/* Honeypot: hidden from people, still filled in by bots. ------------------- */

.honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}