:root {
    --deep: #123b4a;
    --water: #0f7282;
    --leaf: #2d7a5e;
    --light: #f3f7f7;
    --line: #d9e4e4;
    --text: #193036;
    --danger: #a73b3b;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background: var(--light);
    color: var(--text);
}
.topbar {
    min-height: 76px;
    padding: 16px 28px;
    background: var(--deep);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.brand { display: block; font-size: 25px; }
.subtitle { font-size: 14px; opacity: .85; }
.user-area { display: flex; gap: 14px; align-items: center; }
.user-area form { margin: 0; }
.link-button {
    border: 0;
    background: transparent;
    color: white;
    text-decoration: underline;
    cursor: pointer;
}
.nav {
    background: white;
    border-bottom: 1px solid var(--line);
    padding: 0 28px;
    display: flex;
    gap: 8px;
}
.nav a {
    padding: 14px 16px;
    color: var(--deep);
    text-decoration: none;
    font-weight: 600;
}
.nav a:hover { background: #eaf2f2; }
.container { max-width: 1240px; margin: 30px auto; padding: 0 22px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.action-card {
    background: white;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
    min-height: 150px;
    text-decoration: none;
    color: var(--text);
    box-shadow: 0 6px 18px rgba(18, 59, 74, .06);
}
.action-card:hover { transform: translateY(-2px); }
.action-card .icon { display: block; font-size: 36px; color: var(--water); }
.action-card strong { display: block; font-size: 20px; margin-top: 12px; }
.action-card small { display: block; margin-top: 6px; }
.metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin: 22px 0;
}
.metrics div, .details-grid div {
    background: white;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 18px;
}
.metrics strong { display: block; font-size: 28px; color: var(--water); }
.metrics span, .details-grid small { display: block; margin-top: 5px; }
.panel {
    margin-top: 22px;
    background: white;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 22px;
    overflow-x: auto;
}
.narrow { max-width: 700px; }
.login-card {
    max-width: 440px;
    margin: 60px auto;
    background: white;
    padding: 30px;
    border-radius: 14px;
    border: 1px solid var(--line);
}
input[type="text"], input[type="password"], input[type="file"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #b8caca;
    border-radius: 8px;
}
.primary-button {
    display: inline-block;
    border: 0;
    border-radius: 9px;
    padding: 12px 18px;
    background: var(--water);
    color: white;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; }
th { background: #edf4f4; }
.message { padding: 13px 16px; border-radius: 8px; margin-bottom: 15px; }
.message.success { background: #e3f3ea; }
.message.error { background: #f8e3e3; color: var(--danger); }
.page-heading { display: flex; justify-content: space-between; align-items: center; }
.details-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; }
.details-grid strong { display: block; margin-top: 6px; }
.wrap { word-break: break-all; }
@media (max-width: 720px) {
    .topbar { align-items: flex-start; gap: 12px; }
    .subtitle { display: none; }
    .nav { overflow-x: auto; padding: 0 8px; }
    .container { margin-top: 18px; }
    .metrics { grid-template-columns: 1fr; }
}

.metrics.four { grid-template-columns: repeat(4, 1fr); }
.primary-button.compact { padding: 8px 12px; }
.details-grid.single { grid-template-columns: 1fr; }
.spaced-form { margin-top: 22px; }
@media (max-width: 900px) { .metrics.four { grid-template-columns: repeat(2, 1fr); } }

.danger-button {
    display: inline-block;
    border: 0;
    border-radius: 9px;
    padding: 12px 18px;
    background: #a73b3b;
    color: white;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.secondary-button {
    display: inline-block;
    border: 1px solid #0f7282;
    border-radius: 9px;
    padding: 11px 17px;
    background: white;
    color: #0f7282;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.metrics.six {
    grid-template-columns: repeat(6, 1fr);
}
.alert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 12px;
}
.alert-grid a {
    display: block;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text);
    background: #fbfdfd;
}
.alert-grid strong {
    display: block;
    font-size: 26px;
    color: var(--water);
}
.search-form {
    display: flex;
    gap: 10px;
}
.search-form input {
    flex: 1;
}
.filter-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    align-items: end;
}
.filter-grid p {
    margin: 0;
}
.filter-action {
    padding-bottom: 1px;
}
@media (max-width: 1050px) {
    .metrics.six { grid-template-columns: repeat(3, 1fr); }
    .filter-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
    .metrics.six { grid-template-columns: 1fr; }
    .search-form { flex-direction: column; }
    .filter-grid { grid-template-columns: 1fr; }
}