:root {
    --color-bg: #f4f6f8;
    --color-surface: #ffffff;
    --color-primary: #1f5f5b;
    --color-primary-dark: #163f3d;
    --color-accent: #d98936;
    --color-text: #23292b;
    --color-muted: #6b7680;
    --color-border: #e2e6e9;
    --color-success-bg: #e6f4ea;
    --color-success-text: #1e6b34;
    --color-error-bg: #fbeaea;
    --color-error-text: #a3312a;
    --color-warning-bg: #fdf3e2;
    --color-warning-text: #92600e;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 14px;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Layout general ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 230px;
    background: var(--color-primary-dark);
    color: #fff;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.sidebar-brand {
    display: flex; align-items: center; gap: 10px;
    padding: 20px 18px; font-weight: 600; font-size: 15px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.brand-icon {
    background: var(--color-accent); color: #fff; font-weight: 700;
    width: 32px; height: 32px; border-radius: 6px;
    display: flex; align-items: center; justify-content: center; font-size: 13px;
}
.sidebar-nav { flex: 1; padding: 14px 10px; display: flex; flex-direction: column; gap: 2px; }
.nav-section {
    margin: 14px 10px 4px; font-size: 11px; text-transform: uppercase;
    letter-spacing: .05em; color: rgba(255,255,255,0.45);
}
.nav-item {
    color: rgba(255,255,255,0.85); padding: 9px 12px; border-radius: 6px; font-size: 14px;
}
.nav-item:hover { background: rgba(255,255,255,0.08); text-decoration: none; }
.sidebar-footer { padding: 14px; border-top: 1px solid rgba(255,255,255,0.1); }
.user-chip { font-size: 13px; color: rgba(255,255,255,0.7); padding: 6px 12px; }
.logout { color: #f3b8b0; }

.main-content { flex: 1; padding: 26px 32px; max-width: 1200px; }

/* ---------- Auth ---------- */
.auth-body {
    display: flex; align-items: center; justify-content: center; min-height: 100vh;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
}
.auth-card {
    background: var(--color-surface); padding: 36px 34px; border-radius: 12px;
    width: 360px; box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.auth-brand { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-bottom: 22px; }
.auth-brand h1 { font-size: 17px; text-align: center; margin: 0; color: var(--color-text); }

/* ---------- Componentes ---------- */
.alert { padding: 11px 16px; border-radius: var(--radius); margin-bottom: 18px; font-size: 13.5px; }
.alert-success { background: var(--color-success-bg); color: var(--color-success-text); }
.alert-error { background: var(--color-error-bg); color: var(--color-error-text); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning-text); }

.page-header {
    display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px;
}
.page-header h1 { font-size: 20px; margin: 0; }
.page-header p { color: var(--color-muted); margin: 4px 0 0; font-size: 13px; }

.card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 20px;
}
.card h2 { font-size: 15px; margin: 0 0 14px; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.stat-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow);
}
.stat-card .label { color: var(--color-muted); font-size: 12.5px; margin-bottom: 6px; }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--color-primary-dark); }

.btn {
    display: inline-block; padding: 9px 16px; border-radius: 6px; font-size: 13.5px;
    font-weight: 600; border: none; cursor: pointer; background: var(--color-primary); color: #fff;
}
.btn:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn-secondary { background: #fff; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: #f2f2f2; }
.btn-accent { background: var(--color-accent); }
.btn-accent:hover { background: #b96f24; }
.btn-danger { background: var(--color-error-text); }
.btn-sm { padding: 6px 11px; font-size: 12.5px; }

.form-group { margin-bottom: 15px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: #3a4144; }
.form-group .hint { font-size: 12px; color: var(--color-muted); margin-top: 4px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=file], select, textarea {
    width: 100%; padding: 9px 11px; border: 1px solid var(--color-border); border-radius: 6px;
    font-size: 13.5px; font-family: inherit; background: #fff; color: var(--color-text);
}
textarea { resize: vertical; min-height: 70px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--color-primary); }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
    text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .03em;
    color: var(--color-muted); padding: 8px 12px; border-bottom: 2px solid var(--color-border);
}
tbody td { padding: 11px 12px; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
tbody tr:hover { background: #fafbfb; }

.badge {
    display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11.5px; font-weight: 600;
}
.badge-pendiente { background: #fdf3e2; color: #92600e; }
.badge-aprobada { background: #e3edfb; color: #1c4f9c; }
.badge-asignada { background: #e6f4ea; color: #1e6b34; }
.badge-en_curso { background: #e6f4ea; color: #1e6b34; }
.badge-finalizada { background: #eceff1; color: #52616b; }
.badge-cancelada { background: #fbeaea; color: #a3312a; }
.badge-correo { background: #eef1ff; color: #3948a3; }
.badge-manual { background: #f3ecfb; color: #6a3aa3; }
.badge-disponible { background: #e6f4ea; color: #1e6b34; }
.badge-asignado { background: #fdf3e2; color: #92600e; }
.badge-baja { background: #eceff1; color: #52616b; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; align-items: flex-end; }
.filters .form-group { margin-bottom: 0; min-width: 160px; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--color-muted); }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 10px; flex-wrap: wrap; }

.detail-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 24px; }
.detail-grid .item .label { font-size: 11.5px; text-transform: uppercase; color: var(--color-muted); margin-bottom: 3px; }
.detail-grid .item .value { font-size: 14px; }
@media (max-width: 900px) { .detail-grid { grid-template-columns: 1fr 1fr; } }

.tag-list { display: flex; gap: 6px; flex-wrap: wrap; }

.section-title {
    font-size: 13px; text-transform: uppercase; letter-spacing: .03em; color: var(--color-muted);
    margin: 24px 0 10px;
}