:root {
    --primary: #0d6efd;
    --primary-dark: #0b5ed7;
    --primary-soft: #eaf2ff;
    --success-soft: #eafaf1;
    --danger-soft: #fdeeee;
    --text-main: #1f2d3d;
    --text-soft: #6b7280;
    --border-soft: #e5e7eb;
    --bg-page: #eef3f9;
    --bg-card: #ffffff;
    --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 14px 34px rgba(15, 23, 42, 0.10);
}

body {
    font-family: Arial, sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at top left, rgba(13, 110, 253, 0.08), transparent 30%),
        radial-gradient(circle at bottom right, rgba(25, 135, 84, 0.06), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, var(--bg-page) 100%);
    min-height: 100vh;
}

/* TIPOGRAFÍA */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
}

.text-muted {
    color: var(--text-soft) !important;
}

/* NAVBAR */
.navbar-custom {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 10px 28px rgba(13, 110, 253, 0.22);
    border-bottom-left-radius: 18px;
    border-bottom-right-radius: 18px;
    padding-top: 0.85rem;
    padding-bottom: 0.85rem;
}

.navbar-brand {
    letter-spacing: 0.3px;
    font-size: 1.1rem;
    color: #fff !important;
}

.navbar-custom .nav-link {
    color: rgba(255, 255, 255, 0.88);
    font-weight: 500;
    border-radius: 10px;
    padding: 0.55rem 0.8rem;
    transition: all 0.2s ease;
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link:focus {
    color: #fff;
    background: rgba(255, 255, 255, 0.10);
    transform: translateY(-1px);
}

.nav-user {
    color: #fff;
    font-size: 0.92rem;
    font-weight: 500;
}

.btn-logout {
    border-radius: 10px;
    padding-inline: 0.8rem;
}

/* CONTENIDO */
main.container {
    max-width: 1400px;
}

.fade-in {
    animation: fadeIn 0.25s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* CARDS */
.card {
    border-radius: 20px;
    border: 1px solid rgba(15, 23, 42, 0.05);
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transition: box-shadow 0.2s ease;
}

.card .card-body {
    padding: 1.25rem;
}

/* TABLAS */
.table {
    margin-bottom: 0;
}

.table th,
.table td {
    vertical-align: middle;
}

.table thead th {
    font-weight: 700;
    font-size: 0.9rem;
    color: #334155;
    background-color: #f8fafc;
    border-bottom: 1px solid var(--border-soft);
}

.table td {
    font-size: 0.92rem;
    color: #374151;
}

.table-hover tbody tr:hover {
    background-color: #f8fbff;
}

/* FORMULARIOS */
.form-control,
.form-select {
    border-radius: 12px;
    border: 1px solid #dbe3ec;
    background-color: #fff;
    min-height: 46px;
    box-shadow: none;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.12);
}

textarea.form-control {
    min-height: auto;
}

/* BOTONES */
.btn {
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    box-shadow: 0 8px 20px rgba(13, 110, 253, 0.18);
}

.btn-outline-primary:hover,
.btn-outline-success:hover,
.btn-outline-danger:hover,
.btn-outline-secondary:hover,
.btn-outline-warning:hover,
.btn-outline-dark:hover {
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

/* ALERTAS */
.alert {
    border-radius: 14px;
    border: none;
    box-shadow: var(--shadow-sm);
}

/* BADGES */
.badge {
    border-radius: 999px;
    padding: 0.5em 0.75em;
    font-weight: 600;
}

/* IMÁGENES */
img {
    max-width: 100%;
}

/* LOGIN PROFESIONAL */
.min-vh-75 {
    min-height: 75vh;
}

.login-wrapper {
    background:
        radial-gradient(circle at top left, rgba(13, 110, 253, 0.10), transparent 35%),
        radial-gradient(circle at bottom right, rgba(25, 135, 84, 0.08), transparent 35%),
        linear-gradient(135deg, #f8fbff 0%, #eef4fb 100%);
    border-radius: 24px;
}

.login-card {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.12);
}

.login-logo .logo-circle {
    width: 72px;
    height: 72px;
    margin: 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 30px rgba(13, 110, 253, 0.25);
}

.login-logo .logo-text {
    color: #fff;
    font-weight: 700;
    font-size: 1.35rem;
    letter-spacing: 1px;
}

.login-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-main);
}

.login-subtitle {
    color: var(--text-soft);
    font-size: 0.95rem;
    line-height: 1.5;
}

.login-label {
    font-weight: 600;
    color: #334155;
    margin-bottom: 0.45rem;
}

.login-input {
    height: 50px;
    border-radius: 14px;
    border: 1px solid #dbe3ec;
    background-color: #f8fafc;
    box-shadow: none;
    transition: all 0.2s ease;
}

.login-input:focus {
    background-color: #fff;
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.login-btn {
    height: 50px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-weight: 600;
    transition: all 0.25s ease;
    box-shadow: 0 10px 24px rgba(13, 110, 253, 0.22);
}

.login-btn:hover {
    transform: translateY(-1px);
    color: #fff;
    box-shadow: 0 14px 28px rgba(13, 110, 253, 0.28);
}

/* FOOTER */
footer {
    color: #64748b;
    padding-bottom: 1.2rem;
}

/* BLOQUES VISUALES ÚTILES */
.section-soft {
    background: #f8fbff;
    border: 1px solid var(--border-soft);
    border-radius: 18px;
    padding: 1rem;
}

.kpi-card {
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.kpi-card .small {
    color: #64748b;
    font-weight: 600;
}

.kpi-card .fs-3,
.kpi-card .fs-4,
.kpi-card .fs-5 {
    color: var(--text-main);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .navbar-nav {
        margin-top: 10px;
    }

    .navbar-custom {
        border-bottom-left-radius: 14px;
        border-bottom-right-radius: 14px;
    }
}

@media (max-width: 576px) {
    .login-title {
        font-size: 1.5rem;
    }

    .login-card {
        border-radius: 20px;
    }
}