:root {
    --bg-start: #f7fcf8;
    --bg-mid: #e6f2e9;
    --bg-end: #dbeadf;
    --text-main: #284536;
    --text-soft: #5f7b6d;
    --green-strong: #5f9a78;
    --green-mid: #79ab8b;
    --green-deep: #4f8367;
    --green-border: #c8ddd0;
    --green-line: #e4eee7;
    --panel-bg: rgba(255, 255, 255, 0.9);
    --panel-border: rgba(95, 154, 120, 0.14);
    --panel-shadow: rgba(98, 140, 114, 0.12);
    --sidebar-overlay: rgba(255, 255, 255, 0.16);
    --sidebar-overlay-hover: rgba(255, 255, 255, 0.26);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-mid) 52%, var(--bg-end) 100%);
    color: var(--text-main);
    overflow-x: hidden;
}

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

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

.sidebar {
    width: 270px;
    background: linear-gradient(180deg, #7aad8d 0%, #5f9273 100%);
    color: #fff;
    padding: 28px 22px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.mobile-nav-toggle {
    display: none;
}

.mobile-nav-button {
    display: none;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    border: none;
    background: var(--green-strong);
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(79, 131, 103, 0.2);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo {
    width: 54px;
    height: 54px;
    object-fit: contain;
    border-radius: 50%;
    background: var(--sidebar-overlay);
    padding: 4px;
}

.sidebar h1 {
    margin: 0;
    font-size: 1.15rem;
    line-height: 1.2;
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar nav a,
.logout {
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--sidebar-overlay);
}

.sidebar nav a:hover,
.logout:hover {
    background: var(--sidebar-overlay-hover);
}

.content {
    flex: 1;
    padding: 26px;
    min-width: 0;
}

.site-footer {
    margin-top: 28px;
    padding: 18px 20px;
    border-top: 1px solid var(--green-line);
    color: var(--text-soft);
    text-align: center;
    font-size: 0.95rem;
    line-height: 1.5;
}

.site-footer p {
    margin: 2px 0;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    color: var(--green-deep);
    gap: 14px;
}

.topbar-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.topbar span {
    overflow-wrap: anywhere;
}

.card,
.stats-grid .stat,
.login-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    box-shadow: 0 16px 34px var(--panel-shadow);
}

.card {
    padding: 22px;
    margin-bottom: 20px;
    overflow: hidden;
}

.card-soft {
    margin: 16px 0 20px;
    padding: 16px 18px;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid var(--green-line);
    border-radius: 16px;
}

.card-soft h3 {
    margin-top: 0;
}

.report-tabs-card {
    padding: 0;
}

.report-tabs-intro {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px 18px;
    border-bottom: 1px solid var(--green-line);
}

.report-tabs-intro h2 {
    margin: 0 0 6px;
}

.report-workspace {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 520px;
}

.report-tabs {
    display: flex;
    flex-direction: row;
    gap: 8px;
    padding: 18px;
    background: rgba(238, 246, 241, 0.55);
    border-bottom: 1px solid var(--green-line);
}

.report-tab-button {
    flex: 1 1 0;
    width: auto;
    min-height: 40px;
    padding: 9px 12px;
    background: rgba(95, 154, 120, 0.08);
    color: var(--green-deep);
    border: 1px solid var(--green-border);
    box-shadow: none;
    text-align: center;
    border-radius: 12px;
}

.report-tab-button.active {
    background: var(--green-strong);
    color: #fff;
    border-color: var(--green-strong);
    box-shadow: 0 12px 24px rgba(79, 131, 103, 0.18);
}

.report-panels {
    min-width: 0;
    padding: 22px;
}

.report-tab-panel {
    display: none;
}

.report-tab-panel.active {
    display: block;
}

.report-tab-panel h2 {
    margin-top: 0;
}

.report-panel-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
}

.report-panel-heading h2,
.report-panel-heading p {
    margin: 0;
}

.report-panel-heading p {
    margin-top: 4px;
}

.report-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
    margin: 16px 0;
}

.report-summary-item {
    min-height: 82px;
    padding: 12px 14px;
    border: 1px solid var(--green-line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.68);
}

.report-summary-item span {
    display: block;
    color: var(--text-soft);
    font-size: 0.88rem;
}

.report-summary-item strong {
    display: block;
    margin-top: 8px;
    color: var(--green-deep);
    font-size: 1.55rem;
    line-height: 1;
}

.report-grade-table th:first-child,
.report-grade-table td:first-child,
.report-grade-table th:nth-child(2),
.report-grade-table td:nth-child(2) {
    position: sticky;
    left: 0;
    z-index: 2;
    background: #f8fcf9;
}

.report-grade-table th:nth-child(2),
.report-grade-table td:nth-child(2) {
    left: 120px;
    min-width: 210px;
}

.report-grade-table th:first-child,
.report-grade-table td:first-child {
    min-width: 120px;
}

.report-late-card {
    margin-top: 20px;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.stat {
    padding: 20px;
}

.stat strong {
    display: block;
    font-size: 2rem;
    color: var(--green-deep);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

form.inline-form,
form.filter-form,
.stack {
    display: grid;
    gap: 12px;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.actions form {
    margin: 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

input,
select,
textarea,
button {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--green-border);
    padding: 11px 12px;
    font: inherit;
}

textarea {
    min-height: 90px;
    resize: vertical;
}

button {
    background: var(--green-strong);
    color: #fff;
    border: none;
    cursor: pointer;
    font-weight: 700;
}

button.secondary {
    background: var(--green-mid);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--green-line);
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--green-deep);
    font-size: 0.95rem;
}

td,
th,
p,
h1,
h2,
h3,
a,
span {
    overflow-wrap: anywhere;
}

.muted {
    color: #eef7f1;
}

.subtle {
    color: var(--text-soft);
}

.alert {
    padding: 12px 14px;
    border-radius: 12px;
    margin-bottom: 18px;
}

.alert.success {
    background: #e7f4eb;
    color: #3b6d52;
}

.alert.error {
    background: #fde7e7;
    color: #b42318;
}

.badge {
    display: inline-block;
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 0.85rem;
    font-weight: 700;
}

.badge.present {
    background: #e5f3ea;
    color: #3f7357;
}

.badge.absent {
    background: #fde8e8;
    color: #9c1f1f;
}

.badge.late {
    background: #ebf6ef;
    color: #4d7b61;
}

.badge.justified {
    background: #fff1d6;
    color: #8c5a00;
}

.day-status {
    display: block;
    margin-bottom: 6px;
    padding: 5px 8px;
    border-radius: 10px;
    background: #eef6f1;
    color: var(--green-deep);
    font-size: 0.84rem;
    line-height: 1.35;
    min-width: 120px;
}

.day-status:last-child {
    margin-bottom: 0;
}

.justified-row td {
    background: #fff4c7;
}

.justification-hint {
    margin-top: 4px;
    color: #8a6a12;
    font-size: 0.84rem;
    font-weight: 700;
}

.report-row-trigger {
    cursor: pointer;
}

.report-row-trigger:hover td,
.report-row-trigger:focus td {
    background: #eef6f1;
}

.report-row-trigger:focus {
    outline: none;
}

.report-modal {
    width: min(960px, calc(100% - 32px));
    max-height: calc(100% - 48px);
    border: none;
    border-radius: 18px;
    padding: 20px;
    box-shadow: 0 30px 80px rgba(20, 60, 37, 0.24);
}

.report-modal::backdrop {
    background: rgba(18, 33, 22, 0.45);
}

.report-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-layout {
    width: min(860px, 100%);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    align-items: stretch;
    margin: 0 auto;
}

.login-card {
    padding: 30px;
    width: 100%;
}

.login-sidecard {
    display: grid;
    align-content: center;
    gap: 14px;
}

.login-sidecard h2 {
    margin: 0;
    color: var(--green-deep);
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
}

.login-logo {
    width: 92px;
    height: 92px;
    object-fit: contain;
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--green-strong);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.login-card h1 {
    margin: 0;
    color: var(--green-deep);
}

.credentials {
    margin-top: 16px;
    display: grid;
    gap: 6px;
    color: var(--text-soft);
}

.highlight-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 11px 14px;
    border-radius: 14px;
    background: var(--green-deep);
    color: #fff;
    font-weight: 700;
    text-align: center;
}

.highlight-link:hover {
    background: #416b54;
}

@media (max-width: 860px) {
    .shell {
        flex-direction: column;
    }

    .login-layout {
        grid-template-columns: 1fr;
        width: min(470px, 100%);
        gap: 18px;
    }

    .sidebar {
        width: 100%;
        padding: 18px;
        gap: 14px;
    }

    .content {
        padding: 18px;
    }

    .topbar {
        flex-wrap: wrap;
        align-items: flex-start;
    }
}

@media (max-width: 720px) {
    .mobile-nav-button {
        display: inline-flex;
    }

    .sidebar {
        position: sticky;
        top: 0;
        z-index: 20;
    }

    .sidebar nav,
    .sidebar .logout {
        display: none;
    }

    .sidebar.is-open nav,
    .sidebar.is-open .logout {
        display: flex;
    }

    .sidebar.is-open nav {
        margin-top: 6px;
    }

    .sidebar nav {
        flex-direction: column;
    }

    .topbar {
        margin-bottom: 16px;
    }

    .topbar-heading {
        width: 100%;
        justify-content: space-between;
    }

    .content {
        padding: 14px;
    }

    .card,
    .login-card {
        padding: 18px;
        border-radius: 18px;
    }

    .report-tabs-card {
        padding: 0;
    }

    .card-soft {
        padding: 14px;
    }

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

    .report-tabs-intro {
        padding: 18px;
    }

    .report-tabs {
        overflow-x: auto;
        padding: 14px;
    }

    .report-tab-button {
        flex: 0 0 auto;
        min-width: 120px;
        text-align: center;
    }

    .report-panels {
        padding: 18px;
    }

    .actions {
        flex-direction: column;
        align-items: stretch;
    }

    .actions form {
        width: 100%;
    }

    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }

    th,
    td {
        padding: 10px 8px;
    }

    .site-footer {
        margin-top: 20px;
        padding: 16px 12px;
        font-size: 0.88rem;
    }

    .login-brand {
        align-items: flex-start;
    }

    .login-logo {
        width: 72px;
        height: 72px;
    }
}

@media (max-width: 480px) {
    .sidebar {
        padding: 14px;
    }

    .sidebar-brand {
        align-items: flex-start;
    }

    .sidebar h1 {
        font-size: 1rem;
    }

    .sidebar-logo {
        width: 46px;
        height: 46px;
    }

    .content {
        padding: 12px;
    }

    .topbar-heading {
        gap: 10px;
    }

    .topbar span {
        font-size: 0.95rem;
    }

    .stat {
        padding: 16px;
    }

    .stat strong {
        font-size: 1.6rem;
    }

    .login-body {
        padding: 12px;
    }

    .login-card {
        padding: 16px;
    }

    .login-brand {
        flex-direction: column;
        gap: 10px;
    }
}