:root {
    --brand: #004080;
    --brand-dark: #002d5c;
    --brand-soft: #eaf2fb;
    --accent: #0b74c9;
    --surface: #ffffff;
    --background: #f3f6f9;
    --text: #263544;
    --muted: #6c7a89;
    --border: #dfe6ed;
    --shadow: 0 10px 30px rgba(22, 51, 78, .09);
}

html, body { min-height: 100%; }
body.app-body {
    background: var(--background);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
.navbar-custom {
    background: linear-gradient(110deg, var(--brand-dark), var(--brand));
    box-shadow: 0 3px 14px rgba(0, 45, 92, .2);
    min-height: 68px;
    position: sticky;
    top: 0;
    z-index: 1030;
}
.navbar-custom .nav-link { color: rgba(255,255,255,.9) !important; font-weight: 500; }
.navbar-custom .nav-link:hover { color: #fff !important; }
.navbar-custom .navbar-toggler { border-color: rgba(255,255,255,.45); }
.navbar-custom .navbar-toggler-icon { filter: invert(1); }
.brand-logo { width: 132px; height: auto; max-height: 48px; object-fit: contain; }
.page-shell { padding-top: 2rem; padding-bottom: 3rem; }
.page-heading { font-weight: 700; color: var(--brand-dark); letter-spacing: -.02em; }
.page-subtitle { color: var(--muted); margin-bottom: 0; }
.panel, .form-card, .capture-card, .auth-card, .thank-you-message {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow);
}
.panel, .form-card { padding: 1.5rem; }
.form-control { border-color: #cfd9e3; border-radius: 8px; min-height: 42px; }
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 .2rem rgba(11,116,201,.13); }
.btn { border-radius: 8px; font-weight: 600; }
.btn-primary { background: var(--accent); border-color: var(--accent); }
.btn-primary:hover { background: var(--brand); border-color: var(--brand); }
.btn-copy { background: var(--brand-soft); color: var(--brand); border: 1px solid #bed5ec; }
.btn-copy:hover { background: #dceaf8; color: var(--brand-dark); }
.metric-card { border: 0; border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; }
.metric-card .card-body { padding: 1.15rem; }
.metric-label { opacity: .9; font-size: .9rem; }
.metric-value { font-size: 1.8rem; font-weight: 700; line-height: 1.1; }
.table-panel { background: #fff; border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.table-panel .table { margin-bottom: 0; }
.table-panel thead th { background: #edf3f8; color: var(--brand-dark); border: 0; font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; }
.table-panel td { vertical-align: middle; border-color: #edf1f5; }
.actions-column, .actions { width: 115px; min-width: 115px; max-width: 115px; }
.actions { display: flex; flex-direction: column; gap: .45rem; }
.action-icons { display: flex; justify-content: space-between; width: 100%; }
.icon-button {
    align-items: center;
    display: inline-flex;
    justify-content: center;
    padding: .3rem .45rem;
}
.status-select { min-width: 118px; }
.modal-content { border: 0; border-radius: 14px; box-shadow: 0 20px 60px rgba(0,0,0,.18); }
.modal-header { border-bottom-color: var(--border); }
.copy-field { background: #f7f9fb; border: 1px solid var(--border); border-radius: 8px; padding: .75rem; word-break: break-word; white-space: pre-wrap; }
.copy-label { color: var(--muted); font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.auth-card { width: 100%; max-width: 430px; padding: 2rem; }
.auth-logo { display: block; width: 170px; height: auto; margin: 0 auto 1.5rem; }
.capture-card { overflow: hidden; margin-bottom: 1.5rem; }
.capture-card .card-img-top { max-height: 310px; object-fit: contain; background: #f8fafc; }
.capture-card .card-body { padding: 1.25rem; }
.capture-container { max-width: 720px; }
.secure-image img { max-width: 180px; height: auto; }
.flash-stack { position: fixed; z-index: 1080; top: 80px; right: 1rem; width: min(360px, calc(100% - 2rem)); }

@media (max-width: 767.98px) {
    .page-shell { padding-top: 1.25rem; }
    .panel, .form-card { padding: 1rem; }
    .actions-column, .actions { width: 60px; min-width: 60px; max-width: 60px; }
    .table-panel { border-radius: 10px; }
    .modal-footer { flex-direction: column; }
    .modal-footer .btn { width: 100%; margin: .2rem 0; }
}