:root {
    --color-bg: #f7f7f5;
    --color-surface: #ffffff;
    --color-border: #e2e2df;
    --color-text: #1f2320;
    --color-text-muted: #6b6f6c;
    --color-primary: #c0392b;
    --color-primary-dark: #962c21;
    --color-success: #2f7d43;
    --color-warning: #b8860b;
    --color-danger: #c0392b;
    --color-row-alt: rgba(0, 0, 0, 0.015);
    --color-success-bg: #e3f3e6;
    --color-success-border: #b9e0c1;
    --color-success-text: #1f5c2e;
    --color-warning-bg: #fbf1da;
    --color-warning-border: #edd79a;
    --color-warning-text: #7a5b06;
    --color-danger-bg: #fbe4e1;
    --color-danger-border: #f2b8b0;
    --color-danger-text: #7a231a;
    --color-muted-bg: #eceeec;
    --radius: 8px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Tema oscuro: solo dos opciones (Claro/Oscuro), sin "Sistema" — se activa
   agregando data-theme="dark" al <html> (ver theme.js). Misma interfaz,
   paleta distinta: ningún selector/estructura cambia acá, solo colores. */
:root[data-theme="dark"] {
    --color-bg: #14171a;
    --color-surface: #1e2227;
    --color-border: #343a40;
    --color-text: #e8e6e3;
    --color-text-muted: #a3a9ae;
    --color-primary: #e0574a;
    --color-primary-dark: #c0392b;
    --color-success: #5cc57a;
    --color-warning: #e0b34d;
    --color-danger: #e0574a;
    --color-row-alt: rgba(255, 255, 255, 0.035);
    --color-success-bg: #1f3a26;
    --color-success-border: #316b3e;
    --color-success-text: #9fe0af;
    --color-warning-bg: #3a3220;
    --color-warning-border: #6b5a2e;
    --color-warning-text: #f0cd7a;
    --color-danger-bg: #3a2320;
    --color-danger-border: #6b3a34;
    --color-danger-text: #f0a89f;
    --color-muted-bg: #2a2e33;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
}

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

.app-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.app-header__brand {
    font-weight: 700;
    font-size: 1.1rem;
}

.app-header__brand span {
    font-weight: 400;
    color: var(--color-text-muted);
}

.app-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
}

.app-nav a {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
}

.app-nav a:hover {
    color: var(--color-primary);
}

.link-button {
    background: none;
    border: none;
    padding: 0;
    font: inherit;
    color: var(--color-text-muted);
    cursor: pointer;
    text-decoration: underline;
}

.app-main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 1.25rem;
}

h1 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

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

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1rem;
}

input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="date"], select, textarea {
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    background: var(--color-surface);
    color: var(--color-text);
    width: 100%;
}

input:disabled, input:read-only {
    background: var(--color-bg);
    color: var(--color-text-muted);
    opacity: 1;
}

label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.field {
    margin-bottom: 0.85rem;
}

button, .btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-primary);
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
}

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

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 0.55rem 0.5rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

th {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

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

.badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-muted { background: var(--color-muted-bg); color: var(--color-text-muted); }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger); }

.alert {
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-danger { background: var(--color-danger-bg); color: var(--color-danger-text); border: 1px solid var(--color-danger-border); }
.alert-success { background: var(--color-success-bg); color: var(--color-success-text); border: 1px solid var(--color-success-border); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning-text); border: 1px solid var(--color-warning-border); }

.text-muted { color: var(--color-text-muted); }
.text-right { text-align: right; }

.theme-toggle {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.3rem 0.6rem;
    font-size: 0.85rem;
    color: var(--color-text);
    cursor: pointer;
}

.theme-toggle:hover {
    background: var(--color-bg);
}

.login-body {
    background: var(--color-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-shell {
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 2rem;
    width: 100%;
    max-width: 360px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.login-shell h1 {
    text-align: center;
    margin-bottom: 0.25rem;
}

.login-shell .subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.form-actions {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

/* Responsive: celular */
@media (max-width: 640px) {
    .app-main {
        padding: 0.85rem;
    }

    th, td {
        padding: 0.45rem 0.35rem;
        font-size: 0.85rem;
    }

    .app-header {
        flex-direction: column;
        align-items: flex-start;
    }
}
