:root {
    --ost-green: #087d65;
    --ost-dark-green: #075b4b;
    --ost-bg: #f4f8f6;
    --ost-text: #243b34;
    --ost-muted: #7b8b85;
    --ost-border: #e4ece8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--ost-bg);
    color: var(--ost-text);
    font-size: 14px;
}

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

.ost-sidebar {
    width: 260px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    color: white;
    background: linear-gradient(180deg, #087d65, #075b4b);
}

.ost-brand {
    min-height: 92px;
    padding: 20px 17px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid #ffffff25;
}

.ost-logo {
    width: 43px;
    height: 43px;
    display: grid;
    place-items: center;
    border: 1px solid #ffffff70;
    border-radius: 12px;
    font-size: 24px;
}

.ost-brand h5 {
    margin: 0 0 5px;
    font-size: 17px;
    font-weight: 700;
    color: white;
}

.ost-brand h5 span {
    color: #f5d76e;
}

.ost-brand small {
    font-size: 10px;
    color: #d6eee6;
}

.ost-menu-label {
    padding: 25px 20px 10px;
    color: #c5e6dc;
    font-size: 10px;
    letter-spacing: 1.4px;
}

.ost-navigation {
    padding: 0 10px;
}

.ost-menu-link {
    width: 100%;
    min-height: 45px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 13px;
    margin-bottom: 5px;
    border: 0;
    border-radius: 7px;
    color: white;
    background: transparent;
    text-decoration: none;
    text-align: left;
    font: inherit;
    cursor: pointer;
}

.ost-menu-link > span {
    flex: 1;
}

.ost-menu-link:hover,
.ost-menu-link.active {
    color: var(--ost-dark-green);
    background: #ffffff;
}

.ost-chevron {
    font-size: 11px;
    transition: transform .2s;
}

.ost-menu-toggle[aria-expanded="true"] .ost-chevron {
    transform: rotate(180deg);
}

.ost-submenu {
    padding: 2px 0 10px 17px;
}

.ost-submenu[hidden] {
    display: none !important;
}

.ost-submenu a {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 11px 10px;
    border-radius: 6px;
    color: #e0f0ea;
    text-decoration: none;
    font-size: 12px;
}

.ost-submenu a i {
    font-size: 7px;
}

.ost-submenu a:hover {
    background: #ffffff20;
    color: white;
}

.ost-sidebar-footer {
    margin-top: auto;
    padding: 20px;
    border-top: 1px solid #ffffff25;
    color: #d6eee6;
    font-size: 11px;
}

.ost-sidebar-footer i {
    margin-right: 7px;
}

.ost-main {
    flex: 1;
    min-width: 0;
}

.ost-topbar {
    height: 76px;
    display: flex;
    align-items: center;
    padding: 0 30px;
    gap: 15px;
    background: white;
    border-bottom: 1px solid var(--ost-border);
}

.ost-breadcrumb {
    display: flex;
    align-items: center;
    gap: 11px;
    color: var(--ost-muted);
    font-size: 12px;
}

.ost-breadcrumb strong {
    color: var(--ost-green);
}

.ost-user {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.ost-user-icon {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #e1f3ec;
    color: var(--ost-green);
    font-size: 20px;
}

.ost-user-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ost-user-details strong {
    font-size: 12px;
}

.ost-user-details small {
    color: var(--ost-muted);
    font-size: 10px;
}

.ost-user > i {
    color: var(--ost-muted);
}

.ost-content {
    max-width: 1600px;
    margin: auto;
    padding: 30px;
}

.ost-welcome {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.ost-eyebrow {
    color: var(--ost-green);
    font-size: 10px;
    letter-spacing: 1.3px;
    font-weight: 700;
}

.ost-welcome h1 {
    margin: 10px 0;
    font-size: 27px;
    font-weight: 700;
}

.ost-welcome p {
    margin: 0;
    color: var(--ost-muted);
    font-size: 13px;
}

.ost-date {
    padding: 11px 14px;
    border: 1px solid var(--ost-border);
    border-radius: 8px;
    background: white;
    white-space: nowrap;
    font-size: 12px;
}

.ost-date i {
    margin-right: 7px;
    color: var(--ost-green);
}

.ost-section {
    margin-bottom: 30px;
}

.ost-section-heading {
    margin-bottom: 17px;
}

.ost-section-heading h2 {
    margin: 0 0 6px;
    font-size: 18px;
    font-weight: 700;
}

.ost-section-heading p {
    margin: 0;
    color: var(--ost-muted);
    font-size: 12px;
}

.ost-card-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 17px;
}

.ost-two-column {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ost-card {
    position: relative;
    min-height: 165px;
    padding: 22px;
    background: white;
    border: 1px solid var(--ost-border);
    border-radius: 12px;
    color: var(--ost-text);
    text-decoration: none;
    transition: transform .2s, box-shadow .2s;
}

.ost-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px #174c3712;
    color: var(--ost-green);
}

.ost-card-icon {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    margin-bottom: 17px;
    border-radius: 10px;
    font-size: 22px;
}

.ost-card-icon.green {
    color: #087d65;
    background: #e1f4ec;
}

.ost-card-icon.orange {
    color: #b66b17;
    background: #fff0dd;
}

.ost-card-icon.blue {
    color: #2175bd;
    background: #e2f0ff;
}

.ost-card-icon.purple {
    color: #7850b8;
    background: #f0e8ff;
}

.ost-card h3 {
    margin: 0 0 8px;
    font-size: 14px;
    font-weight: 700;
}

.ost-card p {
    margin: 0;
    color: var(--ost-muted);
    font-size: 11px;
}

.ost-card-arrow {
    position: absolute;
    top: 22px;
    right: 20px;
    color: #9aada5;
}

.ost-footer {
    padding: 20px 0 5px;
    text-align: center;
    color: var(--ost-muted);
    font-size: 11px;
}

.ost-mobile-toggle {
    display: none;
    border: 0;
    background: transparent;
    font-size: 25px;
}

@media (max-width: 1200px) {
    .ost-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .ost-sidebar {
        position: fixed;
        z-index: 1000;
        inset: 0 auto 0 0;
        width: 260px;
        overflow-y: auto;
        transform: translateX(-100%);
        transition: transform .25s;
    }

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

    .ost-mobile-toggle {
        display: block;
    }

    .ost-topbar {
        height: 65px;
        padding: 0 14px;
    }

    .ost-content {
        padding: 22px 14px;
    }

    .ost-welcome {
        align-items: flex-start;
        flex-direction: column;
    }

    .ost-welcome h1 {
        font-size: 23px;
    }

    .ost-card-grid,
    .ost-two-column {
        grid-template-columns: 1fr;
    }

    .ost-card {
        min-height: 145px;
    }

    .ost-user-details,
    .ost-user > i {
        display: none;
    }
}