:root {
    --wk-blue: #1BA3DE;
    --wk-blue-dark: #0E7FB5;
    --wk-blue-darker: #0A5D87;
    --wk-blue-pale: #EAF7FD;
    --wk-ink: #143543;
    --wk-gray: #667888;
    --wk-border: #DCE7ED;
    --wk-success: #1E9E6B;
    --wk-warning: #C8891C;
    --wk-danger: #C93B3B;
    --wk-radius: 10px;
}

body {
    background: #F4FAFD;
    color: var(--wk-ink);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ---------- Brand header ---------- */
.wk-navbar {
    background: linear-gradient(135deg, var(--wk-blue-darker), var(--wk-blue));
}
.wk-navbar .navbar-brand {
    color: #fff;
    font-weight: 700;
    letter-spacing: .3px;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.wk-navbar .navbar-brand small {
    font-weight: 400;
    opacity: .85;
    font-size: .7rem;
}
.wk-drop {
    width: 30px;
    height: 34px;
    display: inline-block;
}

.wk-hero {
    background: linear-gradient(135deg, var(--wk-blue-darker), var(--wk-blue) 60%, #4FC3E8);
    color: #fff;
    padding: 2.25rem 0;
}
.wk-hero h1 { font-weight: 700; }
.wk-hero p { color: rgba(255,255,255,.9); max-width: 640px; }

/* ---------- Section cards (mirrors the paper form's blue section bars) ---------- */
.wk-card {
    background: #fff;
    border: 1px solid var(--wk-border);
    border-radius: var(--wk-radius);
    box-shadow: 0 1px 3px rgba(20,53,67,.06);
    margin-bottom: 1.5rem;
    overflow: hidden;
}
.wk-section-bar {
    background: var(--wk-blue);
    color: #fff;
    font-weight: 600;
    padding: .65rem 1.25rem;
    font-size: .95rem;
    letter-spacing: .2px;
}
.wk-section-body {
    padding: 1.25rem 1.25rem 0.5rem;
}

label.form-label {
    font-weight: 600;
    font-size: .85rem;
    color: var(--wk-ink);
}
.form-control, .form-select {
    border-color: var(--wk-border);
}
.form-control:focus, .form-select:focus {
    border-color: var(--wk-blue);
    box-shadow: 0 0 0 .2rem rgba(27,163,222,.15);
}
.form-text { color: var(--wk-gray); }

.wk-role-block {
    border: 1px dashed var(--wk-border);
    border-radius: var(--wk-radius);
    padding: 1rem;
    margin-bottom: 1rem;
    background: #FBFEFF;
}
.wk-role-block h6 {
    color: var(--wk-blue-darker);
    font-weight: 700;
    text-transform: uppercase;
    font-size: .75rem;
    letter-spacing: .5px;
    margin-bottom: .75rem;
}

.wk-btn-primary {
    background: var(--wk-blue);
    border-color: var(--wk-blue);
}
.wk-btn-primary:hover, .wk-btn-primary:focus {
    background: var(--wk-blue-dark);
    border-color: var(--wk-blue-dark);
}

.wk-terms-box {
    max-height: 260px;
    overflow-y: auto;
    border: 1px solid var(--wk-border);
    border-radius: var(--wk-radius);
    padding: 1rem;
    background: #FBFEFF;
    font-size: .85rem;
    color: var(--wk-gray);
}
.wk-terms-box h6 { color: var(--wk-ink); font-weight: 700; margin-top: .75rem; }
.wk-terms-box h6:first-child { margin-top: 0; }

/* ---------- Badges ---------- */
.badge-submitted { background: #E8ECF0; color: var(--wk-gray); }
.badge-review     { background: #FCF1DC; color: var(--wk-warning); }
.badge-approved   { background: #E1F5EC; color: var(--wk-success); }
.badge-rejected   { background: #FBE7E7; color: var(--wk-danger); }

/* ---------- Admin ---------- */
.wk-sidebar {
    background: #fff;
    border-right: 1px solid var(--wk-border);
    min-height: calc(100vh - 56px);
}
.wk-sidebar a {
    display: block;
    padding: .65rem 1rem;
    color: var(--wk-ink);
    text-decoration: none;
    border-radius: 6px;
    font-size: .9rem;
}
.wk-sidebar a:hover, .wk-sidebar a.active {
    background: var(--wk-blue-pale);
    color: var(--wk-blue-darker);
    font-weight: 600;
}

.wk-module-card {
    border: 1px solid var(--wk-border);
    border-radius: var(--wk-radius);
    padding: 1rem;
}
.wk-module-card h6 { font-weight: 700; }
.wk-step {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .5rem 0;
    border-bottom: 1px dashed var(--wk-border);
    font-size: .85rem;
}
.wk-step:last-child { border-bottom: none; }

.wk-thumb {
    width: 100%;
    max-width: 160px;
    border: 1px solid var(--wk-border);
    border-radius: 8px;
    padding: 4px;
    background: #fff;
}

.wk-login-card {
    max-width: 400px;
    margin: 4rem auto;
}

footer.wk-footer {
    color: var(--wk-gray);
    font-size: .8rem;
    padding: 2rem 0;
    text-align: center;
}