:root {
    --color-primary: #1c5aa6;
    --color-primary-dark: #123f78;
    --color-accent: #f28c28;
    --color-maroon: #800000;
    --color-bg: #f4f6f9;
    --color-border: #dde3ea;
    --color-text: #263238;
    --color-danger-bg: #fdecea;
    --color-danger-border: #f5c2c0;
    --color-danger-text: #9b1c1c;
    --color-ok-bg: #e8f5e9;
    --color-ok-border: #b8ddb9;
    --color-ok-text: #256029;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
}

a { color: var(--color-primary); }

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.app-header__brand img { height: 40px; }

.app-header__nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.app-header__nav a { text-decoration: none; font-weight: 600; color: var(--color-primary-dark); }
.app-header__nav a:hover { text-decoration: underline; }

.app-header__user { display: flex; align-items: center; gap: 1rem; font-size: 0.9rem; }
.app-header__user a { font-weight: 600; }

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.app-header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
}
.app-header__toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    margin: 0 auto;
    background: var(--color-primary-dark);
}

.app-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem;
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}
.alert--ok { background: var(--color-ok-bg); border-color: var(--color-ok-border); color: var(--color-ok-text); }
.alert--error { background: var(--color-danger-bg); border-color: var(--color-danger-border); color: var(--color-danger-text); }

.alert-banner {
    background: var(--color-danger-bg);
    border: 2px solid var(--color-danger-text);
    color: var(--color-danger-text);
    padding: 1rem 1.25rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 600;
}
.alert-banner ul { margin: 0.5rem 0 0; padding-left: 1.25rem; font-weight: 400; }

.card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

h1, h2, h3 { color: var(--color-primary-dark); }

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}
table th, table td {
    border: 1px solid var(--color-border);
    padding: 0.55rem 0.7rem;
    text-align: left;
    font-size: 0.92rem;
}
table th { background: #eef3f9; font-weight: 700; }
table.list tr:hover td { background: #f8fafc; }

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.form-grid--full { grid-column: 1 / -1; }
label { display: block; font-weight: 600; margin-bottom: 0.3rem; font-size: 0.9rem; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], select, textarea {
    width: 100%;
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
}
textarea { min-height: 80px; }

.btn {
    display: inline-block;
    padding: 0.55rem 1.1rem;
    border-radius: 6px;
    border: none;
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.92rem;
}
.btn:hover { background: var(--color-primary-dark); }
.btn.btn--secondary { background: #6b7785; }
.btn.btn--danger { background: #b3261e; }
.btn.btn--accent { background: var(--color-accent); }
.btn.btn--sm { padding: 0.3rem 0.65rem; font-size: 0.82rem; }

.actions { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; align-items: center; }

.login-wrap {
    max-width: 380px;
    margin: 4rem auto;
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    text-align: center;
}
.login-wrap img { height: 60px; margin-bottom: 1rem; }

.badge { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.78rem; font-weight: 700; }
.badge--activo { background: var(--color-ok-bg); color: var(--color-ok-text); }
.badge--inactivo { background: #eceff1; color: #607d8b; }
.badge--vencida { background: var(--color-danger-bg); color: var(--color-danger-text); }
.badge--vigente { background: var(--color-ok-bg); color: var(--color-ok-text); }

.text-right { text-align: right; }
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }

#lineas-tabla input[type=number] { width: 90px; }
#lineas-tabla input.nombre { width: 100%; min-width: 160px; }

.totales-box { max-width: 320px; margin-left: auto; }
.totales-box table td:first-child { font-weight: 700; }
.totales-box table td:last-child { text-align: right; }

.paginacion { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; margin-top: 1rem; }
.paginacion__actual {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 2rem; height: 2rem; padding: 0 0.5rem;
    background: var(--color-primary); color: #fff; border-radius: 6px; font-weight: 700; font-size: 0.82rem;
}
.paginacion__resumen { margin-left: 0.5rem; font-size: 0.82rem; color: #607d8b; }

@media (max-width: 768px) {
    .app-header__toggle { display: flex; }

    .app-header__nav {
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
        order: 3;
    }
    .app-header__nav.is-open { display: flex; }
    .app-header__nav a {
        padding: 0.75rem 0.5rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        border-top: 1px solid var(--color-border);
    }

    .app-header__user { order: 2; margin-left: auto; font-size: 0.85rem; }
}