:root {
    --bg: #f4f6f8;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --border: #e5e7eb;
    --success: #059669;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.container {
    width: min(1100px, calc(100% - 2rem));
    margin: 1.5rem auto 3rem;
}

.container.narrow,
.card.narrow {
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.topbar {
    background: #111827;
    color: #fff;
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 0;
}

.topbar a {
    color: #fff;
    text-decoration: none;
    margin-left: 1rem;
    font-size: 0.95rem;
}

.brand {
    font-weight: bold;
    margin-left: 0 !important;
}

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

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

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

.form-grid {
    display: grid;
    gap: 0.85rem;
}

.form-grid.compact {
    margin-top: 1rem;
}

label {
    display: grid;
    gap: 0.35rem;
    font-size: 0.95rem;
}

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

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="file"],
select {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
}

.btn {
    display: inline-block;
    padding: 0.65rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    text-decoration: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

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

.btn-danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

th, td {
    border-bottom: 1px solid var(--border);
    padding: 0.65rem 0.5rem;
    text-align: left;
    vertical-align: top;
}

th {
    font-size: 0.85rem;
    color: var(--muted);
}

.alert {
    padding: 0.85rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-success {
    background: #ecfdf5;
    color: var(--success);
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fef2f2;
    color: var(--danger);
    border: 1px solid #fecaca;
}

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.78rem;
    background: #e5e7eb;
}

.badge-pending, .badge-draft { background: #fef3c7; color: #92400e; }
.badge-completed, .badge-signed, .badge-approved { background: #d1fae5; color: #065f46; }
.badge-declined { background: #fee2e2; color: #991b1b; }

.pagination ul {
    list-style: none;
    display: flex;
    gap: 0.35rem;
    padding: 0;
    flex-wrap: wrap;
}

.pagination a {
    display: inline-block;
    padding: 0.4rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--text);
    background: #fff;
}

.pagination li.active a {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.filters {
    margin-bottom: 1rem;
}

.hidden { display: none; }

.sign-card {
    max-width: 960px;
    margin: 0 auto;
}

.sign-card .pdf-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1rem 0 0.5rem;
}

.sign-card .pdf-frame {
    margin: 0 0 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: #525659;
}

.sign-card .pdf-viewer {
    max-height: 80vh;
    overflow-y: auto;
    padding: 1rem;
}

.sign-card .pdf-viewer-message,
.sign-card .pdf-viewer-info {
    color: #f3f4f6;
    text-align: center;
    padding: 2rem 1rem;
    margin: 0;
}

.sign-card .pdf-viewer-info {
    padding: 0.5rem 0 1rem;
    font-size: 0.9rem;
}

.sign-card .pdf-pages {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sign-card .pdf-page-box {
    background: #fff;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

.sign-card .pdf-page-label {
    background: #111827;
    color: #fff;
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
}

.sign-card .pdf-page {
    display: block;
    width: 100%;
    height: auto;
}

.sign-actions {
    display: grid;
    gap: 1.25rem;
}

.sign-steps {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1.25rem 0 1.5rem;
    flex-wrap: wrap;
}

.sign-step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted);
    font-size: 0.92rem;
}

.sign-step.active {
    color: var(--text);
    font-weight: bold;
}

.sign-step.done {
    color: var(--success);
}

.sign-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 999px;
    background: #e5e7eb;
    font-size: 0.85rem;
    font-weight: bold;
}

.sign-step.active .sign-step-number {
    background: var(--primary);
    color: #fff;
}

.sign-step.done .sign-step-number {
    background: var(--success);
    color: #fff;
}

.sign-step-line {
    flex: 1;
    min-width: 2rem;
    height: 2px;
    background: #e5e7eb;
}

.sign-step-line.done {
    background: var(--success);
}

.sign-panel {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    background: #fff;
}

.sign-panel-step1 {
    border-color: #bfdbfe;
    background: #f8fbff;
}

.sign-panel-step2 {
    border-color: #86efac;
    background: #f0fdf4;
    box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.08);
}

.sign-panel-step2 h2 {
    margin-top: 0;
}

.sign-panel-decline {
    background: #fafafa;
}

.sign-panel h2,
.sign-panel h3 {
    margin: 0 0 0.5rem;
}

.btn-large {
    padding: 0.85rem 1.25rem;
    font-size: 1rem;
    margin-top: 0.75rem;
}

.btn-sign {
    min-width: 220px;
    font-weight: bold;
}

.alert-warning {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fcd34d;
    margin-bottom: 1rem;
}

.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.install-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
}

code {
    word-break: break-all;
    font-size: 0.8rem;
}

@media (max-width: 700px) {
    .topbar-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .topbar nav a {
        display: inline-block;
        margin: 0.35rem 0.75rem 0 0;
    }
}