:root {
    --primary: #0b7ec2;
    --secondary: #5ac8fa;
    --success: #22c55e;
    --bg: #f5f8fb;
    --card-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}
body {
    background: linear-gradient(135deg, #e9f3fb, #f6fbff);
    min-height: 100vh;
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
header {
    background: radial-gradient(circle at 20% 20%, rgba(90, 200, 250, 0.35), transparent 35%),
                radial-gradient(circle at 80% 0%, rgba(11, 126, 194, 0.35), transparent 40%),
                linear-gradient(90deg, #0b7ec2, #0e9bd8);
    color: #fff;
    padding: 32px 0;
    margin-bottom: 24px;
    box-shadow: var(--card-shadow);
}
header h1 {
    font-weight: 700;
    letter-spacing: 0.5px;
}
.card {
    border: none;
    box-shadow: var(--card-shadow);
    border-radius: 18px;
}
.form-label {
    font-weight: 600;
    color: #0b263b;
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(11, 126, 194, 0.15);
}
.autocomplete-list {
    position: absolute;
    z-index: 10;
    background: #fff;
    border: 1px solid #e4e8ee;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
    max-height: 240px;
    overflow-y: auto;
    width: 100%;
    top: calc(100% + 4px);
}
.autocomplete-item {
    padding: 10px 12px;
    cursor: pointer;
    transition: background 0.15s ease;
}
.autocomplete-item:hover {
    background: #f1f7ff;
}
.table thead {
    background: #0b7ec2;
    color: #fff;
}
.status-message {
    border-radius: 14px;
    padding: 12px 16px;
    font-weight: 600;
}
.logo-brand {
    height: 56px;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.15));
}
.logo-login img {
    height: 82px;
}
.login-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 18px;
    padding: 32px 12px 24px;
}
.login-card {
    max-width: 420px;
    width: 100%;
    box-shadow: 0 12px 30px rgba(0,0,0,0.18);
    border: none;
}
.app-footer {
    background: linear-gradient(90deg, #0b263b, #0b7ec2);
    color: #ffffff;
    padding: 10px 0;
    box-shadow: 0 -6px 14px rgba(0,0,0,0.08);
    margin-top: 24px;
}
.app-footer small {
    color: #ffffff !important;
    font-weight: 600;
    letter-spacing: 0.2px;
    font-size: 13px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.35);
}
.footer-text {
    display: inline-block;
    color: #ffffff !important;
    font-weight: 700;
}

/* Ajustes responsivos */
@media (max-width: 576px) {
    header {
        padding: 20px 0;
    }
    header h1 {
        font-size: 1.3rem;
    }
    .logo-brand {
        height: 44px;
    }
    .card {
        border-radius: 14px;
    }
    .login-wrapper {
        padding: 24px 10px 16px;
    }
    .login-card {
        box-shadow: 0 10px 24px rgba(0,0,0,0.15);
    }
    .app-footer {
        padding: 8px 0;
        margin-top: 16px;
    }
    .app-footer small {
        font-size: 12px;
    }
}

.upper-input { text-transform: uppercase; }

/* Overlay de carga */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.35);
    backdrop-filter: blur(2px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.loading-box {
    background: #fff;
    padding: 18px 22px;
    border-radius: 14px;
    box-shadow: 0 16px 32px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: #0b263b;
    min-width: 200px;
}
.loading-spinner {
    width: 64px;
    height: 64px;
    border: 6px solid #e3eef9;
    border-top-color: #0b7ec2;
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
}
.loading-text {
    font-size: 14px;
    color: #0b263b;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}