/* Sertifikat — Material Design 3 ala Google */
:root {
    --g-blue: #0b57d0;
    --g-blue-hover: #0842a0;
    --g-blue-container: #d3e3fd;
    --g-on-blue-container: #041e49;
    --g-bg: #f0f4f9;
    --g-card: #ffffff;
    --g-text: #1f1f1f;
    --g-text-2: #444746;
    --g-text-3: #5f6368;
    --g-outline: #c4c7c5;
    --g-outline-soft: #e1e3e1;
    --g-green: #146c2e;
    --g-green-container: #c4eed0;
    --g-red: #b3261e;
    --g-red-container: #f9dedc;
    --g-amber: #7a4a00;
    --g-amber-container: #ffdf9e;
    --g-shadow: 0 1px 2px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.06);
    --g-radius: 16px;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Roboto", "Segoe UI", system-ui, sans-serif;
    background: var(--g-bg);
    color: var(--g-text);
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--g-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ---- Sidebar ala Google (nav drawer) ---- */
.sidebar {
    width: 264px; flex-shrink: 0;
    background: #f8fafd;
    border-right: 1px solid var(--g-outline-soft);
    display: flex; flex-direction: column;
    position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; gap: 12px; align-items: center; padding: 20px 20px 8px; }
.brand-logo {
    width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
    background: var(--g-blue); color: #fff;
    font-weight: 500; font-size: 20px;
    display: flex; align-items: center; justify-content: center;
}
.brand-text strong { display: block; font-size: 16px; font-weight: 500; color: var(--g-text); }
.brand-text small { color: var(--g-text-3); font-size: 12px; }
.nav { padding: 12px; overflow-y: auto; flex: 1; }
.nav-group {
    font-size: 11px; font-weight: 500; letter-spacing: .8px;
    color: var(--g-text-3); margin: 18px 16px 6px; text-transform: uppercase;
}
.nav-link {
    display: flex; align-items: center; gap: 14px;
    padding: 0 16px; height: 44px; border-radius: 22px;
    color: var(--g-text-2); font-size: 14px; font-weight: 500;
    margin-bottom: 2px;
}
.nav-link:hover { background: #e8edf3; text-decoration: none; }
.nav-link.active { background: var(--g-blue-container); color: var(--g-on-blue-container); }
.nav-ico { width: 20px; text-align: center; font-size: 16px; }
.sidebar-foot {
    padding: 16px 20px; border-top: 1px solid var(--g-outline-soft);
    font-size: 13px; color: var(--g-text-2);
}
.sidebar-foot button {
    background: none; border: none; color: var(--g-red); cursor: pointer;
    font-size: 13px; padding: 0; font-family: inherit; font-weight: 500;
}

/* ---- Main ---- */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
    background: rgba(248,250,253,.9);
    padding: 14px 28px; display: flex; justify-content: space-between; align-items: center;
    position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--g-outline-soft);
}
.page-title { font-size: 20px; font-weight: 400; color: var(--g-text); }
.topbar-right { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--g-text-3); }
.content { padding: 24px 28px; max-width: 1200px; width: 100%; }

/* ---- Card ---- */
.card {
    background: var(--g-card); border-radius: var(--g-radius);
    padding: 24px; margin-bottom: 16px; box-shadow: var(--g-shadow);
}
.card h3 { margin: 0 0 16px; font-size: 16px; font-weight: 500; color: var(--g-text); }

/* ---- Buttons (Material) ---- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 40px; padding: 0 20px; border-radius: 20px;
    border: none; font-size: 14px; font-weight: 500; font-family: inherit;
    cursor: pointer; text-decoration: none; transition: box-shadow .2s, background .2s;
}
.btn:hover { text-decoration: none; box-shadow: 0 1px 3px rgba(0,0,0,.2); }
.btn-primary { background: var(--g-blue); color: #fff; }
.btn-primary:hover { background: var(--g-blue-hover); }
.btn-secondary {
    background: #fff; color: var(--g-blue);
    border: 1px solid var(--g-outline);
}
.btn-secondary:hover { background: #f6fafe; }
.btn-success { background: var(--g-green); color: #fff; }
.btn-danger { background: var(--g-red); color: #fff; }
.btn-sm { min-height: 32px; padding: 0 14px; font-size: 13px; border-radius: 16px; }
.btn:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; }

/* ---- Table ---- */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th, .tbl td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--g-outline-soft); }
.tbl th {
    color: var(--g-text-3); font-weight: 500; font-size: 12px;
    text-transform: uppercase; letter-spacing: .5px; border-bottom: 1px solid var(--g-outline);
}
.tbl tr:hover td { background: #f8fafd; }

/* ---- Forms (Material outlined) ---- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 500; margin-bottom: 8px; font-size: 13px; color: var(--g-text-2); }
.form-control, select.form-control, textarea.form-control {
    width: 100%; padding: 12px 16px; border: 1px solid var(--g-outline);
    border-radius: 8px; font-size: 14px; font-family: inherit;
    background: #fff; color: var(--g-text);
}
.form-control:focus { outline: none; border-color: var(--g-blue); box-shadow: 0 0 0 1px var(--g-blue); }
textarea.form-control { min-height: 90px; resize: vertical; }
.form-hint { font-size: 12px; color: var(--g-text-3); margin-top: 6px; }

/* ---- Alerts ---- */
.alert { padding: 14px 18px; border-radius: 12px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #e6f4ea; color: var(--g-green); }
.alert-error { background: var(--g-red-container); color: var(--g-red); }
.alert-warning { background: #fef7e0; color: #7a4a00; }
.alert ul { margin: 6px 0 0; padding-left: 18px; }

/* ---- Chips ---- */
.badge {
    display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 8px;
    font-size: 12px; font-weight: 500; letter-spacing: .2px;
}
.badge-green { background: var(--g-green-container); color: var(--g-green); }
.badge-amber { background: var(--g-amber-container); color: var(--g-amber); }
.badge-red { background: var(--g-red-container); color: var(--g-red); }
.badge-gray { background: #e8eaed; color: var(--g-text-2); }
.badge-blue { background: var(--g-blue-container); color: var(--g-on-blue-container); }

/* ---- Stats ---- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 16px; }
.stat { background: var(--g-card); border-radius: var(--g-radius); padding: 20px; box-shadow: var(--g-shadow); }
.stat .num { font-size: 32px; font-weight: 400; color: var(--g-text); }
.stat .lbl { font-size: 13px; color: var(--g-text-3); margin-top: 4px; }

/* ---- Toolbar / filters ---- */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.toolbar .spacer { flex: 1; }
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; align-items: end; }
.filter-bar .form-group { margin-bottom: 0; }
.filter-bar .form-control { width: auto; min-width: 160px; }

/* ---- Pagination ---- */
.pagination { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; align-items: center; }
.pagination a, .pagination span {
    min-width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
    border-radius: 18px; font-size: 13px; background: transparent; color: var(--g-text-2); padding: 0 10px;
}
.pagination a:hover { background: #e8edf3; text-decoration: none; }
.pagination .active span, .pagination span.current { background: var(--g-blue-container); color: var(--g-on-blue-container); font-weight: 500; }
.pagination .disabled span { color: #bdc1c6; }

/* ---- Login ---- */
.login-wrap {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: var(--g-bg); padding: 20px;
}
.login-card {
    background: #fff; border-radius: 28px; padding: 40px; width: 100%; max-width: 420px;
    box-shadow: 0 1px 3px rgba(0,0,0,.12);
    border: 1px solid var(--g-outline-soft);
}
.login-card h1 { margin: 0 0 4px; color: var(--g-text); font-size: 24px; font-weight: 400; text-align: center; }
.login-card .sub { text-align: center; color: var(--g-text-3); font-size: 13px; margin-bottom: 28px; }
.login-logo {
    width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 50%;
    background: var(--g-blue); color: #fff; font-weight: 500; font-size: 24px;
    display: flex; align-items: center; justify-content: center;
}

/* ---- Verification ---- */
.verify-wrap {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: var(--g-bg); padding: 20px;
}
.verify-card {
    background: #fff; border-radius: 28px; padding: 40px; max-width: 520px; width: 100%;
    text-align: center; box-shadow: var(--g-shadow); border: 1px solid var(--g-outline-soft);
}
.verify-card .seal { font-size: 52px; margin-bottom: 8px; }
.verify-card h2 { color: var(--g-text); margin: 0 0 6px; font-weight: 400; }
.verify-table { text-align: left; margin: 20px 0; font-size: 14px; width: 100%; }
.verify-table td { padding: 8px 4px; border-bottom: 1px solid var(--g-outline-soft); }
.verify-table td:first-child { color: var(--g-text-3); width: 150px; }

/* ---- Misc ---- */
.cert-preview { border: 1px solid var(--g-outline-soft); border-radius: 12px; overflow: hidden; margin-top: 12px; }
details.box { border: 1px solid var(--g-outline-soft); border-radius: 12px; padding: 12px 16px; margin-bottom: 10px; background: #fff; }
details.box summary { cursor: pointer; font-weight: 500; color: var(--g-blue); }
.inline-form { display: inline; }
code.kode { background: #f0f4f9; border: 1px solid var(--g-outline-soft); padding: 2px 8px; border-radius: 6px; font-size: 12px; }
.img-thumb { max-height: 80px; border: 1px solid var(--g-outline-soft); border-radius: 8px; background: #fff; }

@media (max-width: 860px) {
    .sidebar { display: none; }
    .form-grid { grid-template-columns: 1fr; }
    .content { padding: 16px; }
}